Fix execution payload by root retrival

* Add proposer interop to epbs

* fix overflow

---------

Co-authored-by: Potuz <potuz@prysmaticlabs.com>

.github/CODEOWNERS

@@ -5,4 +5,4 @@
 *.bzl @prestonvanloon
 
 # Anyone on prylabs team can approve dependency updates.
-deps.bzl @prysmaticlabs/core-team
+deps.bzl @prysmaticlabs/core-team

.github/actions/gomodtidy/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.24-alpine
+FROM golang:1.23-alpine
 
 COPY entrypoint.sh /entrypoint.sh
 

.github/workflows/go.yml

@@ -28,15 +28,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up Go 1.24
+      - name: Set up Go 1.23
         uses: actions/setup-go@v4
         with:
-          go-version: '1.24.0'
+          go-version: '1.23.5'
       - name: Run Gosec Security Scanner
         run: | # https://github.com/securego/gosec/issues/469
           export PATH=$PATH:$(go env GOPATH)/bin
-          go install github.com/securego/gosec/v2/cmd/gosec@v2.22.1
-          gosec -exclude-generated -exclude=G307,G115 -exclude-dir=crypto/bls/herumi ./...
+          go install github.com/securego/gosec/v2/cmd/gosec@v2.19.0
+          gosec -exclude-generated -exclude=G307 -exclude-dir=crypto/bls/herumi ./...
 
   lint:
     name: Lint
@@ -45,16 +45,16 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Go 1.24
+      - name: Set up Go 1.23
         uses: actions/setup-go@v4
         with:
-          go-version: '1.24.0'
+          go-version: '1.23.5'
           id: go
 
       - name: Golangci-lint
         uses: golangci/golangci-lint-action@v5
         with:
-          version: v1.64.5
+          version: v1.63.4
           args: --config=.golangci.yml --out-${NO_FUTURE}format colored-line-number
 
   build:
@@ -64,7 +64,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v4
         with:
-          go-version: '1.24.0'
+          go-version: '1.23.5'
         id: go
 
       - name: Check out code into the Go module directory

.github/workflows/horusec.yaml

@@ -19,4 +19,4 @@ jobs:
     - name: Running Security Scan
       run: |
         curl -fsSL https://raw.githubusercontent.com/ZupIT/horusec/main/deployments/scripts/install.sh | bash -s latest
-        horusec start -t="10000" -p="./" -e="true" -i="**/crypto/bls/herumi/**, **/**/*_test.go, **/third_party/afl/**, **/crypto/keystore/key.go"
+        horusec start -t="10000" -p="./" -e="true" -i="**/crypto/bls/herumi/**, **/**/*_test.go, **/third_party/afl/**, **/crypto/keystore/key.go"

.golangci.yml

@@ -75,7 +75,6 @@ linters:
     - tagliatelle
     - thelper
     - unparam
-    - usetesting
     - varnamelen
     - wrapcheck
     - wsl

.pre-commit-config.yaml

@@ -1,34 +0,0 @@
-repos:
-  # First run code formatters
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.1.0
-    hooks:
-      - id: end-of-file-fixer # ensures that a file is either empty, or ends with one newline
-        exclude_types: ["proto"]
-      - id: mixed-line-ending # ensures that a file doesn't contain a mix of LF and CRLF
-      - id: no-commit-to-branch # Protect specific branches (default: main/master) from direct checkins
-
-  - repo: local
-    hooks:
-      - id: gci
-        name: goimports
-        entry: bash -c 'command -v gci >/dev/null 2>&1 || go install github.com/daixiang0/gci@latest; gci write --skip-generated -s standard -s default "$@"; goimports -w "$@"' --
-        language: golang
-        files: \.go$
-
-  - repo: https://github.com/dnephin/pre-commit-golang
-    rev: v0.4.0
-    hooks:
-      - id: go-fmt
-        args: [ -w, -s ] # simplify code and write result to (source) file instead of stdout
-      - id: go-mod-tidy
-        files: go.mod
-      - id: golangci-lint
-
-  # Fix bazel build files
-  - repo: local
-    hooks:
-      - id: gazelle
-        name: bazel-fix
-        entry: .pre-commit/fixbazel.sh
-        language: system

.pre-commit/fixbazel.sh

@@ -1,3 +0,0 @@
-#!/usr/bin/env bash
-
-bazel run //:gazelle -- fix

BUILD.bazel

@@ -165,7 +165,7 @@ STATICCHECK_ANALYZERS = [
     "sa6006",
     "sa9001",
     "sa9002",
-    "sa9003",
+    #"sa9003", # Doesn't build. See https://github.com/dominikh/go-tools/pull/1483
     "sa9004",
     "sa9005",
     "sa9006",

CHANGELOG.md

@@ -4,141 +4,6 @@ All notable changes to this project will be documented in this file.
 
 The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
 
-## [v5.3.0](https://github.com/prysmaticlabs/prysm/compare/v5.2.0...v5.3.0) - 2025-02-12
-
-This release includes support for Pectra activation in the [Holesky](https://github.com/eth-clients/holesky) and [Sepolia](https://github.com/eth-clients/sepolia) testnets! The release contains many fixes for Electra that have been found in rigorous testing through devnets in the last few months.
-
-For mainnet, we have a few nice features for you to try:
-
-- [PR #14023](https://github.com/prysmaticlabs/prysm/pull/14023) introduces a new file layout structure for storing blobs. Rather than storing all blob root directories in one parent directory, blob root directories are organized in subdirectories by epoch. This should vastly decrease the blob cache warmup time when Prysm is starting. Try this feature with `--blob-storage-layout=by-epoch`.
-
-Updating to this release is **required** for Holesky and Sepolia operators and it is **recommended** for mainnet users as there are a few bug fixes that apply to deneb logic.
-
-### Added
-
-- Added an error field to log `Finished building block`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14696)
-- Implemented a new `EmptyExecutionPayloadHeader` function. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14713)
-- Added proper gas limit check for header from the builder. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14707)
-- `Finished building block`: Display error only if not nil. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14722)
-- Added light client feature flag check to RPC handlers. [PR](https://github.com/prysmaticlabs/prysm/pull/14736). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14782)
-- Added support to update target and max blob count to different values per hard fork config. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14678)
-- Log before blob filesystem cache warm-up. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14735)
-- New design for the attestation pool. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14324)
-- Add field param placeholder for Electra blob target and max to pass spec tests. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14733)
-- Light client: Add better error handling. [PR](https://github.com/prysmaticlabs/prysm/pull/14749). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14782)
-- Add EIP-7691: Blob throughput increase. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14750)
-- Trace IDONTWANT Messages in Pubsub. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14778)
-- Add Fulu fork boilerplate. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14771)
-- DB optimization for saving light client bootstraps (save unique sync committees only). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14782)
-- Separate type for unaggregated network attestations. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14659)
-- Remote signer electra fork support. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14477)
-- Add Electra test case to rewards API. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14816)
-- Update `proto_test.go` to Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14817)
-- Update slasher service to Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14812)
-- Builder API endpoint to support Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14344)
-- Added protoc toolchains with a version of v25.3. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14818)
-- Add test cases for the eth_lightclient_bootstrap API SSZ support. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14824)
-- Handle `AttesterSlashingElectra` everywhere in the codebase. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14823)
-- Add Beacon DB pruning service to prune historical data older than MIN_EPOCHS_FOR_BLOCK_REQUESTS (roughly equivalent to the weak subjectivity period). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14687)
-- Nil consolidation request check for core processing. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14851)
-- Updated blob sidecar api endpoint for Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14852)
-- Slashing pool service to convert slashings from Phase0 to Electra at the fork. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14844)
-- check to stop eth1 voting after electra and eth1 deposits stop. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14835)
-- WARN log message on node startup advising of the upcoming deprecation of the --enable-historical-state-representation feature flag. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14856)
-- Beacon API event support for `SingleAttestation` and `SignedAggregateAttestationAndProofElectra`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14855)
-- Added Electra tests for `TestLightClient_NewLightClientOptimisticUpdateFromBeaconState` and `TestLightClient_NewLightClientFinalityUpdateFromBeaconState`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14783)
-- New option to select an alternate blob storage layout. Rather than a flat directory with a subdir for each block root, a multi-level scheme is used to organize blobs by epoch/slot/root, enabling leaner syscalls, indexing and pruning. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14023)
-- Send pending att queue's attestations through the notification feed. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14862)
-- Prune all pending deposits and proofs in post-Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14829)
-- Add Pectra testnet dates. (Sepolia and Holesky). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14884)
-
-### Changed
-
-- Process light client finality updates only for new finalized epochs instead of doing it for every block. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14713)
-- Refactor subnets subscriptions. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14711)
-- Refactor RPC handlers subscriptions. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14732)
-- Go deps upgrade, from `ioutil` to `io`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14737)
-- Move successfully registered validator(s) on builder log to debug. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14735)
-- Update some test files to use `crypto/rand` instead of `math/rand`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14747)
-- Re-organize the content of the `*.proto` files (No functional change). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14755)
-- SSZ files generation: Remove the `// Hash: ...` header.[[PR]](https://github.com/prysmaticlabs/prysm/pull/14760)
-- Updated Electra spec definition for `process_epoch`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14768)
-- Update our `go-libp2p-pubsub` dependency. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14770)
-- Re-organize the content of files to ease the creation of a new fork boilerplate. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14761)
-- Updated spec definition electra `process_registry_updates`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14767)
-- Fixed Metadata errors for peers connected via QUIC. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14776)
-- Updated spec definitions for `process_slashings` in godocs. Simplified `ProcessSlashings` API. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14766)
-- Update spec tests to v1.5.0-beta.0. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14788)
-- Process light client finality updates only for new finalized epochs instead of doing it for every block. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14718)
-- Update blobs by rpc topics from V2 to V1. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14785)
-- Updated geth to 1.14~. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14351)
-- E2e tests start from bellatrix. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14351)
-- Version pinning unclog after making some ux improvements. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14802)
-- Remove helpers to check for execution/compounding withdrawal credentials and expose them as methods. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14808)
-- Refactor `2006-01-02 15:04:05` to `time.DateTime`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14792)
-- Updated Prysm to Go v1.23.5. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14818)
-- Updated Bazel version to v7.4.1. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14818)
-- Updated rules_go to v0.46.0. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14818)
-- Updated golang.org/x/tools to be compatible with v1.23.5. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14818)
-- CI now requires proto files to be properly formatted with clang-format. [[PR](https://github.com/prysmaticlabs/prysm/pull/14831)]. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14831)
-- Improved test coverage of beacon-chain/core/electra/churn.go. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14837)
-- Update electra spec test to beta1. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14841)
-- Move deposit request nil check to apply all. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14849)
-- Do not mark blocks as invalid on context deadlines during state transition. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14838)
-- Update electra core processing to not mark block bad if execution request error. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14826)
-- Dependency: Updated go-ethereum to v1.14.13. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14872)
-- improving readability on proposer settings loader. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14868)
-- Removes existing validator.processSlot span and adds validator.processSlot span to slotCtx. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14874)
-- DownloadFinalizedData has moved from the api/client package to beacon-chain/sync/checkpoint. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14871)
-- Updated Blob-Batch-Limit to increase to 192 for electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14883)
-- Updated Blob-Batch-Limit-Burst-Factor to increase to 3. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14883)
-- Changed the derived batch limit when serving blobs. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14883)
-- Updated go-libp2p-pubsub to v0.13.0. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14890)
-- Rename light client flag from `enable-lightclient` to `enable-light-client`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14887)
-- Update electra spec test to beta2. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14901)
-
-### Removed
-
-- Cleanup ProcessSlashings method to remove unnecessary argument. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14762)
-- Remove `/proto/eth/v2` directory. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14765)
-- Remove `/memsize/` pprof endpoint as it will no longer be supported in go 1.23. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14351)
-- Clean `TestCanUpgrade*` tests. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14791)
-- Remove `Copy()` from the `ReadOnlyBeaconBlock` interface. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14811)
-- Removed a tracing span on signature requests. These requests usually took less than 5 nanoseconds and are generally not worth tracing. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14864)
-
-### Fixed
-
-- Added check to prevent nil pointer deference or out of bounds array access when validating the BLSToExecutionChange on an impossibly nil validator. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14705)
-- EIP-7691: Ensure new blobs subnets are subscribed on epoch in advance. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14759)
-- Fix kzg commitment inclusion proof depth minimal value. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14787)
-- Replace exampleIP to `96.7.129.13`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14795)
-- Fixed a p2p test to reliably return a static IP through DNS resolution. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14800)
-- `ToBlinded`: Use Fulu struct for Fulu (instead of Electra). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14797)
-- fix panic with type cast on pbgenericblock(). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14801)
-- Prysmctl generate genesis state: fix truncation of ExtraData to 32 bytes to satisfy SSZ marshaling. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14803)
-- added conditional evaluators to fix scenario e2e tests. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14798)
-- Use `SingleAttestation` for Fulu in p2p attestation map. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14809)
-- `UpgradeToFulu`: Respect the specification. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14821)
-- `nodeFilter`: Implement `filterPeerForBlobSubnet` to avoid error logs. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14822)
-- Fixed deposit packing for post-Electra: early return if EIP-6110 is applied. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14697)
-- Fix batch process new pending deposits by getting validators from state. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14827)
-- Fix handling unfound block at slot. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14852)
-- Fixed incorrect attester slashing length check. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14833)
-- Fix monitor service for Electra. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14853)
-- add more nil checks on ToConsensus functions for added safety. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14867)
-- Fix electra state to safe share references on pending fields when append. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14895)
-- Add missing config values from the spec. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14903)
-- We remove the unused `rebuildTrie` assignments for fields which do not use them. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14906)
-- fix block api endpoint to handle blocks with the same structure but on different forks (i.e. fulu and electra). [[PR]](https://github.com/prysmaticlabs/prysm/pull/14897)
-- We change how we track blob indexes during their reconstruction from the EL to prevent. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14909)
-- We now use the correct maximum value when serving blobs for electra blocks. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14910)
-
-### Security
-
-- go version upgrade to 1.22.10 for CVE CVE-2024-34156. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14729)
-- Update golang.org/x/crypto to v0.31.0 to address CVE-2024-45337. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14777)
-- Update golang.org/x/net to v0.33.0 to address CVE-2024-45338. [[PR]](https://github.com/prysmaticlabs/prysm/pull/14780)
-
 ## [v5.2.0](https://github.com/prysmaticlabs/prysm/compare/v5.1.2...v5.2.0)
 
 Updating to this release is highly recommended, especially for users running v5.1.1 or v5.1.2.
@@ -3122,4 +2987,4 @@ There are no security updates in this release.
 
 # Older than v2.0.0
 
-For changelog history for releases older than v2.0.0, please refer to https://github.com/prysmaticlabs/prysm/releases
+For changelog history for releases older than v2.0.0, please refer to https://github.com/prysmaticlabs/prysm/releases

CONTRIBUTING.md

@@ -175,23 +175,6 @@ $ git push myrepo feature-in-progress-branch -f
 
 **22.  Finally, again leave a comment to the Core Contributors on the pull request to let them know that the pull request has been updated.**
 
-### Git hooks and linters.
-
-Prysm is configured with [pre-commit](https://pre-commit.com) **githooks** that ensures pull
-requests adhere to a minimum standard and are consistent. It is highly recommended running the githooks locally while developing for faster feedback.
-
-To install githooks:
-- Follow installation instructions [here](https://pre-commit.com/#installation) to install the `pre-commit` tool.
-- Once installed, run `pre-commit install` in the project's root directory. This will set up the hooks.
-- Note you can skip the hooks by committing with `-n`: `git commit -n -m "look mom no githooks"`
-
-To update githooks:
-```sh
-pre-commit clean
-```
-
-The **linter** used is [golangci-lint](https://golangci-lint.run/). It runs as part of the githooks and is configured in [.golangci.yml](.golangci.yml)
-
 ## Maintaining CHANGELOG.md
 
 This project follows the changelog guidelines from [keepachangelog.com](https://keepachangelog.com/en/1.1.0/). In order to minimize conflicts and workflow headaches, we chose to implement a changelog management

DEPENDENCIES.md

@@ -55,7 +55,7 @@ bazel build //beacon-chain --config=release
 ## Adding / updating dependencies
 
 1. Add your dependency as you would with go modules. I.e. `go get ...`
-1. Run `bazel run //:gazelle -- update-repos -from_file=go.mod -to_macro=deps.bzl%prysm_deps -prune=true` to update the bazel managed dependencies.
+1. Run `bazel run //:gazelle -- update-repos -from_file=go.mod` to update the bazel managed dependencies.
 
 Example:
 

LICENSE.md

@@ -672,3 +672,4 @@ may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <http://www.gnu.org/philosophy/why-not-lgpl.html>.
+

TERMS_OF_SERVICE.md

@@ -50,3 +50,4 @@ We reserve the right to revise these Terms, and your rights and obligations are
 These Terms constitute the entire agreement between you and Offchain Labs regarding use of Prysm and will supersede all prior agreements whether, written or oral. No usage of trade or other regular practice or method of dealing between the parties will be used to modify, interpret, supplement, or alter the terms of these Terms.
 
 If any portion of these Terms is held invalid or unenforceable, such invalidity or enforceability will not affect the other provisions of these Terms, which will remain in full force and effect, and the invalid or unenforceable portion will be given effect to the greatest extent possible. The failure of a party to require performance of any provision will not affect that party’s right to require performance at any time thereafter, nor will a waiver of any breach or default of these Terms or any provision of these Terms constitute a waiver of any subsequent breach or default or a waiver of the provision itself.
+

WORKSPACE

@@ -160,15 +160,15 @@ oci_register_toolchains(
 
 http_archive(
     name = "io_bazel_rules_go",
-    integrity = "sha256-JD8o94crTb2DFiJJR8nMAGdBAW95zIENB4cbI+JnrI4=",
     patch_args = ["-p1"],
     patches = [
         # Expose internals of go_test for custom build transitions.
         "//third_party:io_bazel_rules_go_test.patch",
     ],
-    strip_prefix = "rules_go-cf3c3af34bd869b864f5f2b98e2f41c2b220d6c9",
+    sha256 = "b2038e2de2cace18f032249cb4bb0048abf583a36369fa98f687af1b3f880b26",
     urls = [
-        "https://github.com/bazel-contrib/rules_go/archive/cf3c3af34bd869b864f5f2b98e2f41c2b220d6c9.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.48.1/rules_go-v0.48.1.zip",
+        "https://github.com/bazelbuild/rules_go/releases/download/v0.48.1/rules_go-v0.48.1.zip",
     ],
 )
 
@@ -210,7 +210,7 @@ load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_depe
 go_rules_dependencies()
 
 go_register_toolchains(
-    go_version = "1.24.0",
+    go_version = "1.23.5",
     nogo = "@//:nogo",
 )
 
@@ -255,7 +255,7 @@ filegroup(
     url = "https://github.com/ethereum/EIPs/archive/5480440fe51742ed23342b68cf106cefd427e39d.tar.gz",
 )
 
-consensus_spec_version = "v1.5.0-beta.2"
+consensus_spec_version = "v1.5.0-beta.1"
 
 bls_test_version = "v0.1.1"
 
@@ -271,7 +271,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-X/bMxbKg1clo2aFEjBoeuFq/U+BF1eQopgRP/7nI3Qg=",
+    integrity = "sha256-R6r60geCfEjMaB1Ag3svaMFXFIgaJvkTJhfKsf76rFE=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/general.tar.gz" % consensus_spec_version,
 )
 
@@ -287,7 +287,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-WSxdri5OJGuNApW+odKle5UzToDyEOx+F3lMiqamJAg=",
+    integrity = "sha256-2Pem2gMHxW/6bBhZ2BaqkQruQSd/dTS3WMaMQO8rZ/o=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/minimal.tar.gz" % consensus_spec_version,
 )
 
@@ -303,7 +303,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-LYE8l3y/zSt4YVrehrJ3ralqtgeYNildiIp+HR6+xAI=",
+    integrity = "sha256-5yP05JTV1MhcUZ2kSh+T+kXjG+uW3A5877veC5c1mD4=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/mainnet.tar.gz" % consensus_spec_version,
 )
 
@@ -318,7 +318,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-jvZQ90qcJMTOqMsPO7sgeEVQmewZTHcz7LVDkNqwTFQ=",
+    integrity = "sha256-O6Rg6h19T0RsJs0sBDZ9O1k4LnCJ/gu2ilHijFBVfME=",
     strip_prefix = "consensus-specs-" + consensus_spec_version[1:],
     url = "https://github.com/ethereum/consensus-specs/archive/refs/tags/%s.tar.gz" % consensus_spec_version,
 )
@@ -431,7 +431,7 @@ gometalinter_dependencies()
 
 load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
 
-gazelle_dependencies(go_sdk = "go_sdk")
+gazelle_dependencies()
 
 load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
 

api/client/beacon/BUILD.bazel

@@ -3,7 +3,9 @@ load("@prysm//tools/go:def.bzl", "go_library", "go_test")
 go_library(
     name = "go_default_library",
     srcs = [
+        "checkpoint.go",
         "client.go",
+        "client_epbs.go",
         "doc.go",
         "health.go",
         "log.go",
@@ -15,19 +17,28 @@ go_library(
         "//api/client/beacon/iface:go_default_library",
         "//api/server:go_default_library",
         "//api/server/structs:go_default_library",
+        "//beacon-chain/core/helpers:go_default_library",
+        "//beacon-chain/state:go_default_library",
+        "//consensus-types/interfaces:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//encoding/ssz/detect:go_default_library",
+        "//io/file:go_default_library",
         "//network/forks:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
+        "//runtime/version:go_default_library",
+        "//time/slots:go_default_library",
         "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
+        "@org_golang_x_mod//semver:go_default_library",
     ],
 )
 
 go_test(
     name = "go_default_test",
     srcs = [
+        "checkpoint_test.go",
         "client_test.go",
         "health_test.go",
     ],
@@ -35,7 +46,19 @@ go_test(
     deps = [
         "//api/client:go_default_library",
         "//api/client/beacon/testing:go_default_library",
+        "//beacon-chain/state:go_default_library",
+        "//config/params:go_default_library",
+        "//consensus-types/blocks:go_default_library",
+        "//consensus-types/blocks/testing:go_default_library",
+        "//consensus-types/primitives:go_default_library",
+        "//encoding/ssz/detect:go_default_library",
+        "//network/forks:go_default_library",
+        "//proto/prysm/v1alpha1:go_default_library",
+        "//runtime/version:go_default_library",
         "//testing/require:go_default_library",
+        "//testing/util:go_default_library",
+        "//time/slots:go_default_library",
+        "@com_github_pkg_errors//:go_default_library",
         "@org_uber_go_mock//gomock:go_default_library",
     ],
 )

api/client/beacon/checkpoint.go

@@ -0,0 +1,276 @@
+package beacon
+
+import (
+	"context"
+	"fmt"
+	"path"
+
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/pkg/errors"
+	base "github.com/prysmaticlabs/prysm/v5/api/client"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	"github.com/prysmaticlabs/prysm/v5/encoding/ssz/detect"
+	"github.com/prysmaticlabs/prysm/v5/io/file"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"github.com/prysmaticlabs/prysm/v5/time/slots"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/mod/semver"
+)
+
+var errCheckpointBlockMismatch = errors.New("mismatch between checkpoint sync state and block")
+
+// OriginData represents the BeaconState and ReadOnlySignedBeaconBlock necessary to start an empty Beacon Node
+// using Checkpoint Sync.
+type OriginData struct {
+	sb []byte
+	bb []byte
+	st state.BeaconState
+	b  interfaces.ReadOnlySignedBeaconBlock
+	vu *detect.VersionedUnmarshaler
+	br [32]byte
+	sr [32]byte
+}
+
+// SaveBlock saves the downloaded block to a unique file in the given path.
+// For readability and collision avoidance, the file name includes: type, config name, slot and root
+func (o *OriginData) SaveBlock(dir string) (string, error) {
+	blockPath := path.Join(dir, fname("block", o.vu, o.b.Block().Slot(), o.br))
+	return blockPath, file.WriteFile(blockPath, o.BlockBytes())
+}
+
+// SaveState saves the downloaded state to a unique file in the given path.
+// For readability and collision avoidance, the file name includes: type, config name, slot and root
+func (o *OriginData) SaveState(dir string) (string, error) {
+	statePath := path.Join(dir, fname("state", o.vu, o.st.Slot(), o.sr))
+	return statePath, file.WriteFile(statePath, o.StateBytes())
+}
+
+// StateBytes returns the ssz-encoded bytes of the downloaded BeaconState value.
+func (o *OriginData) StateBytes() []byte {
+	return o.sb
+}
+
+// BlockBytes returns the ssz-encoded bytes of the downloaded ReadOnlySignedBeaconBlock value.
+func (o *OriginData) BlockBytes() []byte {
+	return o.bb
+}
+
+func fname(prefix string, vu *detect.VersionedUnmarshaler, slot primitives.Slot, root [32]byte) string {
+	return fmt.Sprintf("%s_%s_%s_%d-%#x.ssz", prefix, vu.Config.ConfigName, version.String(vu.Fork), slot, root)
+}
+
+// DownloadFinalizedData downloads the most recently finalized state, and the block most recently applied to that state.
+// This pair can be used to initialize a new beacon node via checkpoint sync.
+func DownloadFinalizedData(ctx context.Context, client *Client) (*OriginData, error) {
+	sb, err := client.GetState(ctx, IdFinalized)
+	if err != nil {
+		return nil, err
+	}
+	vu, err := detect.FromState(sb)
+	if err != nil {
+		return nil, errors.Wrap(err, "error detecting chain config for finalized state")
+	}
+
+	log.WithFields(logrus.Fields{
+		"name": vu.Config.ConfigName,
+		"fork": version.String(vu.Fork),
+	}).Info("Detected supported config in remote finalized state")
+
+	s, err := vu.UnmarshalBeaconState(sb)
+	if err != nil {
+		return nil, errors.Wrap(err, "error unmarshaling finalized state to correct version")
+	}
+
+	slot := s.LatestBlockHeader().Slot
+	bb, err := client.GetBlock(ctx, IdFromSlot(slot))
+	if err != nil {
+		return nil, errors.Wrapf(err, "error requesting block by slot = %d", slot)
+	}
+	b, err := vu.UnmarshalBeaconBlock(bb)
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to unmarshal block to a supported type using the detected fork schedule")
+	}
+	br, err := b.Block().HashTreeRoot()
+	if err != nil {
+		return nil, errors.Wrap(err, "error computing hash_tree_root of retrieved block")
+	}
+	bodyRoot, err := b.Block().Body().HashTreeRoot()
+	if err != nil {
+		return nil, errors.Wrap(err, "error computing hash_tree_root of retrieved block body")
+	}
+
+	sbr := bytesutil.ToBytes32(s.LatestBlockHeader().BodyRoot)
+	if sbr != bodyRoot {
+		return nil, errors.Wrapf(errCheckpointBlockMismatch, "state body root = %#x, block body root = %#x", sbr, bodyRoot)
+	}
+	sr, err := s.HashTreeRoot(ctx)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to compute htr for finalized state at slot=%d", s.Slot())
+	}
+
+	log.
+		WithField("blockSlot", b.Block().Slot()).
+		WithField("stateSlot", s.Slot()).
+		WithField("stateRoot", hexutil.Encode(sr[:])).
+		WithField("blockRoot", hexutil.Encode(br[:])).
+		Info("Downloaded checkpoint sync state and block.")
+	return &OriginData{
+		st: s,
+		b:  b,
+		sb: sb,
+		bb: bb,
+		vu: vu,
+		br: br,
+		sr: sr,
+	}, nil
+}
+
+// WeakSubjectivityData represents the state root, block root and epoch of the BeaconState + ReadOnlySignedBeaconBlock
+// that falls at the beginning of the current weak subjectivity period. These values can be used to construct
+// a weak subjectivity checkpoint beacon node flag to be used for validation.
+type WeakSubjectivityData struct {
+	BlockRoot [32]byte
+	StateRoot [32]byte
+	Epoch     primitives.Epoch
+}
+
+// CheckpointString returns the standard string representation of a Checkpoint.
+// The format is a hex-encoded block root, followed by the epoch of the block, separated by a colon. For example:
+// "0x1c35540cac127315fabb6bf29181f2ae0de1a3fc909d2e76ba771e61312cc49a:74888"
+func (wsd *WeakSubjectivityData) CheckpointString() string {
+	return fmt.Sprintf("%#x:%d", wsd.BlockRoot, wsd.Epoch)
+}
+
+// ComputeWeakSubjectivityCheckpoint attempts to use the prysm weak_subjectivity api
+// to obtain the current weak_subjectivity checkpoint.
+// For non-prysm nodes, the same computation will be performed with extra steps,
+// using the head state downloaded from the beacon node api.
+func ComputeWeakSubjectivityCheckpoint(ctx context.Context, client *Client) (*WeakSubjectivityData, error) {
+	ws, err := client.GetWeakSubjectivity(ctx)
+	if err != nil {
+		// a 404/405 is expected if querying an endpoint that doesn't support the weak subjectivity checkpoint api
+		if !errors.Is(err, base.ErrNotOK) {
+			return nil, errors.Wrap(err, "unexpected API response for prysm-only weak subjectivity checkpoint API")
+		}
+		// fall back to vanilla Beacon Node API method
+		return computeBackwardsCompatible(ctx, client)
+	}
+	log.Printf("server weak subjectivity checkpoint response - epoch=%d, block_root=%#x, state_root=%#x", ws.Epoch, ws.BlockRoot, ws.StateRoot)
+	return ws, nil
+}
+
+const (
+	prysmMinimumVersion     = "v2.0.7"
+	prysmImplementationName = "Prysm"
+)
+
+// errUnsupportedPrysmCheckpointVersion indicates remote beacon node can't be used for checkpoint retrieval.
+var errUnsupportedPrysmCheckpointVersion = errors.New("node does not meet minimum version requirements for checkpoint retrieval")
+
+// for older endpoints or clients that do not support the weak_subjectivity api method
+// we gather the necessary data for a checkpoint sync by:
+// - inspecting the remote server's head state and computing the weak subjectivity epoch locally
+// - requesting the state at the first slot of the epoch
+// - using hash_tree_root(state.latest_block_header) to compute the block the state integrates
+// - requesting that block by its root
+func computeBackwardsCompatible(ctx context.Context, client *Client) (*WeakSubjectivityData, error) {
+	log.Print("falling back to generic checkpoint derivation, weak_subjectivity API not supported by server")
+	nv, err := client.GetNodeVersion(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to proceed with fallback method without confirming node version")
+	}
+	if nv.implementation == prysmImplementationName && semver.Compare(nv.semver, prysmMinimumVersion) < 0 {
+		return nil, errors.Wrapf(errUnsupportedPrysmCheckpointVersion, "%s < minimum (%s)", nv.semver, prysmMinimumVersion)
+	}
+	epoch, err := getWeakSubjectivityEpochFromHead(ctx, client)
+	if err != nil {
+		return nil, errors.Wrap(err, "error computing weak subjectivity epoch via head state inspection")
+	}
+
+	// use first slot of the epoch for the state slot
+	slot, err := slots.EpochStart(epoch)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error computing first slot of epoch=%d", epoch)
+	}
+
+	log.Printf("requesting checkpoint state at slot %d", slot)
+	// get the state at the first slot of the epoch
+	sb, err := client.GetState(ctx, IdFromSlot(slot))
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to request state by slot from api, slot=%d", slot)
+	}
+
+	// ConfigFork is used to unmarshal the BeaconState so we can read the block root in latest_block_header
+	vu, err := detect.FromState(sb)
+	if err != nil {
+		return nil, errors.Wrap(err, "error detecting chain config for beacon state")
+	}
+	log.Printf("detected supported config in checkpoint state, name=%s, fork=%s", vu.Config.ConfigName, version.String(vu.Fork))
+
+	s, err := vu.UnmarshalBeaconState(sb)
+	if err != nil {
+		return nil, errors.Wrap(err, "error using detected config fork to unmarshal state bytes")
+	}
+
+	// compute state and block roots
+	sr, err := s.HashTreeRoot(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "error computing hash_tree_root of state")
+	}
+
+	h := s.LatestBlockHeader()
+	h.StateRoot = sr[:]
+	br, err := h.HashTreeRoot()
+	if err != nil {
+		return nil, errors.Wrap(err, "error while computing block root using state data")
+	}
+
+	bb, err := client.GetBlock(ctx, IdFromRoot(br))
+	if err != nil {
+		return nil, errors.Wrapf(err, "error requesting block by root = %d", br)
+	}
+	b, err := vu.UnmarshalBeaconBlock(bb)
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to unmarshal block to a supported type using the detected fork schedule")
+	}
+	br, err = b.Block().HashTreeRoot()
+	if err != nil {
+		return nil, errors.Wrap(err, "error computing hash_tree_root for block obtained via root")
+	}
+
+	return &WeakSubjectivityData{
+		Epoch:     epoch,
+		BlockRoot: br,
+		StateRoot: sr,
+	}, nil
+}
+
+// this method downloads the head state, which can be used to find the correct chain config
+// and use prysm's helper methods to compute the latest weak subjectivity epoch.
+func getWeakSubjectivityEpochFromHead(ctx context.Context, client *Client) (primitives.Epoch, error) {
+	headBytes, err := client.GetState(ctx, IdHead)
+	if err != nil {
+		return 0, err
+	}
+	vu, err := detect.FromState(headBytes)
+	if err != nil {
+		return 0, errors.Wrap(err, "error detecting chain config for beacon state")
+	}
+	log.Printf("detected supported config in remote head state, name=%s, fork=%s", vu.Config.ConfigName, version.String(vu.Fork))
+	headState, err := vu.UnmarshalBeaconState(headBytes)
+	if err != nil {
+		return 0, errors.Wrap(err, "error unmarshaling state to correct version")
+	}
+
+	epoch, err := helpers.LatestWeakSubjectivityEpoch(ctx, headState, vu.Config)
+	if err != nil {
+		return 0, errors.Wrap(err, "error computing the weak subjectivity epoch from head state")
+	}
+
+	log.Printf("(computed client-side) weak subjectivity epoch = %d", epoch)
+	return epoch, nil
+}

api/client/beacon/checkpoint_test.go

@@ -1,4 +1,4 @@
-package checkpoint
+package beacon
 
 import (
 	"bytes"
@@ -11,7 +11,6 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/v5/api/client"
-	"github.com/prysmaticlabs/prysm/v5/api/client/beacon"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
@@ -26,6 +25,19 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/time/slots"
 )
 
+type testRT struct {
+	rt func(*http.Request) (*http.Response, error)
+}
+
+func (rt *testRT) RoundTrip(req *http.Request) (*http.Response, error) {
+	if rt.rt != nil {
+		return rt.rt(req)
+	}
+	return nil, errors.New("RoundTripper not implemented")
+}
+
+var _ http.RoundTripper = &testRT{}
+
 func marshalToEnvelope(val interface{}) ([]byte, error) {
 	raw, err := json.Marshal(val)
 	if err != nil {
@@ -51,6 +63,35 @@ func TestMarshalToEnvelope(t *testing.T) {
 	require.Equal(t, expected, string(encoded))
 }
 
+func TestFallbackVersionCheck(t *testing.T) {
+	trans := &testRT{rt: func(req *http.Request) (*http.Response, error) {
+		res := &http.Response{Request: req}
+		switch req.URL.Path {
+		case getNodeVersionPath:
+			res.StatusCode = http.StatusOK
+			b := bytes.NewBuffer(nil)
+			d := struct {
+				Version string `json:"version"`
+			}{
+				Version: "Prysm/v2.0.5 (linux amd64)",
+			}
+			encoded, err := marshalToEnvelope(d)
+			require.NoError(t, err)
+			b.Write(encoded)
+			res.Body = io.NopCloser(b)
+		case getWeakSubjectivityPath:
+			res.StatusCode = http.StatusNotFound
+		}
+		return res, nil
+	}}
+
+	c, err := NewClient("http://localhost:3500", client.WithRoundTripper(trans))
+	require.NoError(t, err)
+	ctx := context.Background()
+	_, err = ComputeWeakSubjectivityCheckpoint(ctx, c)
+	require.ErrorIs(t, err, errUnsupportedPrysmCheckpointVersion)
+}
+
 func TestFname(t *testing.T) {
 	vu := &detect.VersionedUnmarshaler{
 		Config: params.MainnetConfig(),
@@ -119,7 +160,7 @@ func TestDownloadWeakSubjectivityCheckpoint(t *testing.T) {
 
 	wsSerialized, err := wst.MarshalSSZ()
 	require.NoError(t, err)
-	expectedWSD := beacon.WeakSubjectivityData{
+	expectedWSD := WeakSubjectivityData{
 		BlockRoot: bRoot,
 		StateRoot: wRoot,
 		Epoch:     epoch,
@@ -128,7 +169,7 @@ func TestDownloadWeakSubjectivityCheckpoint(t *testing.T) {
 	trans := &testRT{rt: func(req *http.Request) (*http.Response, error) {
 		res := &http.Response{Request: req}
 		switch req.URL.Path {
-		case beacon.GetWeakSubjectivityPath:
+		case getWeakSubjectivityPath:
 			res.StatusCode = http.StatusOK
 			cp := struct {
 				Epoch string `json:"epoch"`
@@ -147,10 +188,10 @@ func TestDownloadWeakSubjectivityCheckpoint(t *testing.T) {
 			rb, err := marshalToEnvelope(wsr)
 			require.NoError(t, err)
 			res.Body = io.NopCloser(bytes.NewBuffer(rb))
-		case beacon.RenderGetStatePath(beacon.IdFromSlot(wSlot)):
+		case renderGetStatePath(IdFromSlot(wSlot)):
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(wsSerialized))
-		case beacon.RenderGetBlockPath(beacon.IdFromRoot(bRoot)):
+		case renderGetBlockPath(IdFromRoot(bRoot)):
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(serBlock))
 		}
@@ -158,7 +199,7 @@ func TestDownloadWeakSubjectivityCheckpoint(t *testing.T) {
 		return res, nil
 	}}
 
-	c, err := beacon.NewClient("http://localhost:3500", client.WithRoundTripper(trans))
+	c, err := NewClient("http://localhost:3500", client.WithRoundTripper(trans))
 	require.NoError(t, err)
 
 	wsd, err := ComputeWeakSubjectivityCheckpoint(ctx, c)
@@ -222,7 +263,7 @@ func TestDownloadBackwardsCompatibleCombined(t *testing.T) {
 	trans := &testRT{rt: func(req *http.Request) (*http.Response, error) {
 		res := &http.Response{Request: req}
 		switch req.URL.Path {
-		case beacon.GetNodeVersionPath:
+		case getNodeVersionPath:
 			res.StatusCode = http.StatusOK
 			b := bytes.NewBuffer(nil)
 			d := struct {
@@ -234,15 +275,15 @@ func TestDownloadBackwardsCompatibleCombined(t *testing.T) {
 			require.NoError(t, err)
 			b.Write(encoded)
 			res.Body = io.NopCloser(b)
-		case beacon.GetWeakSubjectivityPath:
+		case getWeakSubjectivityPath:
 			res.StatusCode = http.StatusNotFound
-		case beacon.RenderGetStatePath(beacon.IdHead):
+		case renderGetStatePath(IdHead):
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(serialized))
-		case beacon.RenderGetStatePath(beacon.IdFromSlot(wSlot)):
+		case renderGetStatePath(IdFromSlot(wSlot)):
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(wsSerialized))
-		case beacon.RenderGetBlockPath(beacon.IdFromRoot(bRoot)):
+		case renderGetBlockPath(IdFromRoot(bRoot)):
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(serBlock))
 		}
@@ -250,7 +291,7 @@ func TestDownloadBackwardsCompatibleCombined(t *testing.T) {
 		return res, nil
 	}}
 
-	c, err := beacon.NewClient("http://localhost:3500", client.WithRoundTripper(trans))
+	c, err := NewClient("http://localhost:3500", client.WithRoundTripper(trans))
 	require.NoError(t, err)
 
 	wsPub, err := ComputeWeakSubjectivityCheckpoint(ctx, c)
@@ -267,13 +308,13 @@ func TestGetWeakSubjectivityEpochFromHead(t *testing.T) {
 	require.NoError(t, err)
 	trans := &testRT{rt: func(req *http.Request) (*http.Response, error) {
 		res := &http.Response{Request: req}
-		if req.URL.Path == beacon.RenderGetStatePath(beacon.IdHead) {
+		if req.URL.Path == renderGetStatePath(IdHead) {
 			res.StatusCode = http.StatusOK
 			res.Body = io.NopCloser(bytes.NewBuffer(serialized))
 		}
 		return res, nil
 	}}
-	c, err := beacon.NewClient("http://localhost:3500", client.WithRoundTripper(trans))
+	c, err := NewClient("http://localhost:3500", client.WithRoundTripper(trans))
 	require.NoError(t, err)
 	actualEpoch, err := getWeakSubjectivityEpochFromHead(context.Background(), c)
 	require.NoError(t, err)
@@ -345,3 +386,96 @@ func populateValidators(cfg *params.BeaconChainConfig, st state.BeaconState, val
 	}
 	return st.SetBalances(balances)
 }
+
+func TestDownloadFinalizedData(t *testing.T) {
+	ctx := context.Background()
+	cfg := params.MainnetConfig().Copy()
+
+	// avoid the altair zone because genesis tests are easier to set up
+	epoch := cfg.AltairForkEpoch - 1
+	// set up checkpoint state, using the epoch that will be computed as the ws checkpoint state based on the head state
+	slot, err := slots.EpochStart(epoch)
+	require.NoError(t, err)
+	st, err := util.NewBeaconState()
+	require.NoError(t, err)
+	fork, err := forkForEpoch(cfg, epoch)
+	require.NoError(t, err)
+	require.NoError(t, st.SetFork(fork))
+	require.NoError(t, st.SetSlot(slot))
+
+	// set up checkpoint block
+	b, err := blocks.NewSignedBeaconBlock(util.NewBeaconBlock())
+	require.NoError(t, err)
+	b, err = blocktest.SetBlockParentRoot(b, cfg.ZeroHash)
+	require.NoError(t, err)
+	b, err = blocktest.SetBlockSlot(b, slot)
+	require.NoError(t, err)
+	b, err = blocktest.SetProposerIndex(b, 0)
+	require.NoError(t, err)
+
+	// set up state header pointing at checkpoint block - this is how the block is downloaded by root
+	header, err := b.Header()
+	require.NoError(t, err)
+	require.NoError(t, st.SetLatestBlockHeader(header.Header))
+
+	// order of operations can be confusing here:
+	// - when computing the state root, make sure block header is complete, EXCEPT the state root should be zero-value
+	// - before computing the block root (to match the request route), the block should include the state root
+	//   *computed from the state with a header that does not have a state root set yet*
+	sr, err := st.HashTreeRoot(ctx)
+	require.NoError(t, err)
+
+	b, err = blocktest.SetBlockStateRoot(b, sr)
+	require.NoError(t, err)
+	mb, err := b.MarshalSSZ()
+	require.NoError(t, err)
+	br, err := b.Block().HashTreeRoot()
+	require.NoError(t, err)
+
+	ms, err := st.MarshalSSZ()
+	require.NoError(t, err)
+
+	trans := &testRT{rt: func(req *http.Request) (*http.Response, error) {
+		res := &http.Response{Request: req}
+		switch req.URL.Path {
+		case renderGetStatePath(IdFinalized):
+			res.StatusCode = http.StatusOK
+			res.Body = io.NopCloser(bytes.NewBuffer(ms))
+		case renderGetBlockPath(IdFromSlot(b.Block().Slot())):
+			res.StatusCode = http.StatusOK
+			res.Body = io.NopCloser(bytes.NewBuffer(mb))
+		default:
+			res.StatusCode = http.StatusInternalServerError
+			res.Body = io.NopCloser(bytes.NewBufferString(""))
+		}
+
+		return res, nil
+	}}
+	c, err := NewClient("http://localhost:3500", client.WithRoundTripper(trans))
+	require.NoError(t, err)
+	// sanity check before we go through checkpoint
+	// make sure we can download the state and unmarshal it with the VersionedUnmarshaler
+	sb, err := c.GetState(ctx, IdFinalized)
+	require.NoError(t, err)
+	require.Equal(t, true, bytes.Equal(sb, ms))
+	vu, err := detect.FromState(sb)
+	require.NoError(t, err)
+	us, err := vu.UnmarshalBeaconState(sb)
+	require.NoError(t, err)
+	ushtr, err := us.HashTreeRoot(ctx)
+	require.NoError(t, err)
+	require.Equal(t, sr, ushtr)
+
+	expected := &OriginData{
+		sb: ms,
+		bb: mb,
+		br: br,
+		sr: sr,
+	}
+	od, err := DownloadFinalizedData(ctx, c)
+	require.NoError(t, err)
+	require.Equal(t, true, bytes.Equal(expected.sb, od.sb))
+	require.Equal(t, true, bytes.Equal(expected.bb, od.bb))
+	require.Equal(t, expected.br, od.br)
+	require.Equal(t, expected.sr, od.sr)
+}

api/client/beacon/client.go

@@ -29,13 +29,13 @@ const (
 	getSignedBlockPath       = "/eth/v2/beacon/blocks"
 	getBlockRootPath         = "/eth/v1/beacon/blocks/{{.Id}}/root"
 	getForkForStatePath      = "/eth/v1/beacon/states/{{.Id}}/fork"
+	getWeakSubjectivityPath  = "/prysm/v1/beacon/weak_subjectivity"
 	getForkSchedulePath      = "/eth/v1/config/fork_schedule"
 	getConfigSpecPath        = "/eth/v1/config/spec"
 	getStatePath             = "/eth/v2/debug/beacon/states"
+	getNodeVersionPath       = "/eth/v1/node/version"
 	changeBLStoExecutionPath = "/eth/v1/beacon/pool/bls_to_execution_changes"
-
-	GetNodeVersionPath      = "/eth/v1/node/version"
-	GetWeakSubjectivityPath = "/prysm/v1/beacon/weak_subjectivity"
+	getPayloadEnvelopePath   = "/eth/v1/beacon/execution_payload"
 )
 
 // StateOrBlockId represents the block_id / state_id parameters that several of the Eth Beacon API methods accept.
@@ -81,8 +81,7 @@ func idTemplate(ts string) func(StateOrBlockId) string {
 	return f
 }
 
-// RenderGetBlockPath formats a block id into a path for the GetBlock API endpoint.
-func RenderGetBlockPath(id StateOrBlockId) string {
+func renderGetBlockPath(id StateOrBlockId) string {
 	return path.Join(getSignedBlockPath, string(id))
 }
 
@@ -106,7 +105,7 @@ func NewClient(host string, opts ...client.ClientOpt) (*Client, error) {
 // for the named identifiers.
 // The return value contains the ssz-encoded bytes.
 func (c *Client) GetBlock(ctx context.Context, blockId StateOrBlockId) ([]byte, error) {
-	blockPath := RenderGetBlockPath(blockId)
+	blockPath := renderGetBlockPath(blockId)
 	b, err := c.Get(ctx, blockPath, client.WithSSZEncoding())
 	if err != nil {
 		return nil, errors.Wrapf(err, "error requesting state by id = %s", blockId)
@@ -197,10 +196,6 @@ type NodeVersion struct {
 	systemInfo     string
 }
 
-func (nv *NodeVersion) SetImplementation(impl string) {
-	nv.implementation = impl
-}
-
 var versionRE = regexp.MustCompile(`^(\w+)/(v\d+\.\d+\.\d+[-a-zA-Z0-9]*)\s*/?(.*)$`)
 
 func parseNodeVersion(v string) (*NodeVersion, error) {
@@ -218,7 +213,7 @@ func parseNodeVersion(v string) (*NodeVersion, error) {
 // GetNodeVersion requests that the beacon node identify information about its implementation in a format
 // similar to a HTTP User-Agent field. ex: Lighthouse/v0.1.5 (Linux x86_64)
 func (c *Client) GetNodeVersion(ctx context.Context) (*NodeVersion, error) {
-	b, err := c.Get(ctx, GetNodeVersionPath)
+	b, err := c.Get(ctx, getNodeVersionPath)
 	if err != nil {
 		return nil, errors.Wrap(err, "error requesting node version")
 	}
@@ -234,8 +229,7 @@ func (c *Client) GetNodeVersion(ctx context.Context) (*NodeVersion, error) {
 	return parseNodeVersion(d.Data.Version)
 }
 
-// RenderGetStatePath formats a state id into a path for the GetState API endpoint.
-func RenderGetStatePath(id StateOrBlockId) string {
+func renderGetStatePath(id StateOrBlockId) string {
 	return path.Join(getStatePath, string(id))
 }
 
@@ -253,29 +247,13 @@ func (c *Client) GetState(ctx context.Context, stateId StateOrBlockId) ([]byte,
 	return b, nil
 }
 
-// WeakSubjectivityData represents the state root, block root and epoch of the BeaconState + ReadOnlySignedBeaconBlock
-// that falls at the beginning of the current weak subjectivity period. These values can be used to construct
-// a weak subjectivity checkpoint beacon node flag to be used for validation.
-type WeakSubjectivityData struct {
-	BlockRoot [32]byte
-	StateRoot [32]byte
-	Epoch     primitives.Epoch
-}
-
-// CheckpointString returns the standard string representation of a Checkpoint.
-// The format is a hex-encoded block root, followed by the epoch of the block, separated by a colon. For example:
-// "0x1c35540cac127315fabb6bf29181f2ae0de1a3fc909d2e76ba771e61312cc49a:74888"
-func (wsd *WeakSubjectivityData) CheckpointString() string {
-	return fmt.Sprintf("%#x:%d", wsd.BlockRoot, wsd.Epoch)
-}
-
 // GetWeakSubjectivity calls a proposed API endpoint that is unique to prysm
 // This api method does the following:
 // - computes weak subjectivity epoch
 // - finds the highest non-skipped block preceding the epoch
 // - returns the htr of the found block and returns this + the value of state_root from the block
 func (c *Client) GetWeakSubjectivity(ctx context.Context) (*WeakSubjectivityData, error) {
-	body, err := c.Get(ctx, GetWeakSubjectivityPath)
+	body, err := c.Get(ctx, getWeakSubjectivityPath)
 	if err != nil {
 		return nil, err
 	}

api/client/beacon/client_epbs.go

@@ -0,0 +1,22 @@
+package beacon
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/v5/api/client"
+)
+
+// GetExecutionPayload retrieves the SignedExecutionPayloadEnvelope for the given block id.
+// Block identifier can be one of: "head" (canonical head in node's view), "genesis", "finalized",
+// <slot>, <hex encoded blockRoot with 0x prefix>. Variables of type StateOrBlockId are exported by this package
+// for the named identifiers.
+// The return value contains the ssz-encoded bytes.
+func (c *Client) GetExecutionPayload(ctx context.Context, blockId StateOrBlockId) ([]byte, error) {
+	blockPath := renderGetBlockPath(blockId)
+	b, err := c.Get(ctx, blockPath, client.WithSSZEncoding())
+	if err != nil {
+		return nil, errors.Wrapf(err, "error requesting execuction payload by id = %s", blockId)
+	}
+	return b, nil
+}

api/client/beacon/client_test.go

@@ -97,31 +97,31 @@ func TestValidHostname(t *testing.T) {
 		{
 			name:    "hostname with port",
 			hostArg: "mydomain.org:3500",
-			path:    GetNodeVersionPath,
+			path:    getNodeVersionPath,
 			joined:  "http://mydomain.org:3500/eth/v1/node/version",
 		},
 		{
 			name:    "https scheme, hostname with port",
 			hostArg: "https://mydomain.org:3500",
-			path:    GetNodeVersionPath,
+			path:    getNodeVersionPath,
 			joined:  "https://mydomain.org:3500/eth/v1/node/version",
 		},
 		{
 			name:    "http scheme, hostname without port",
 			hostArg: "http://mydomain.org",
-			path:    GetNodeVersionPath,
+			path:    getNodeVersionPath,
 			joined:  "http://mydomain.org/eth/v1/node/version",
 		},
 		{
 			name:    "http scheme, trailing slash, hostname without port",
 			hostArg: "http://mydomain.org/",
-			path:    GetNodeVersionPath,
+			path:    getNodeVersionPath,
 			joined:  "http://mydomain.org/eth/v1/node/version",
 		},
 		{
 			name:    "http scheme, hostname with basic auth creds and no port",
 			hostArg: "http://username:pass@mydomain.org/",
-			path:    GetNodeVersionPath,
+			path:    getNodeVersionPath,
 			joined:  "http://username:pass@mydomain.org/eth/v1/node/version",
 		},
 	}

api/client/builder/BUILD.bazel

@@ -33,7 +33,6 @@ go_library(
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_prysmaticlabs_fastssz//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
-        "@io_opentelemetry_go_contrib_instrumentation_net_http_otelhttp//:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",
     ],
 )
@@ -47,7 +46,6 @@ go_test(
     data = glob(["testdata/**"]),
     embed = [":go_default_library"],
     deps = [
-        "//api:go_default_library",
         "//api/server/structs:go_default_library",
         "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",

api/client/builder/client.go

@@ -25,7 +25,6 @@ import (
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 	log "github.com/sirupsen/logrus"
-	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
 )
 
 const (
@@ -109,7 +108,7 @@ func NewClient(host string, opts ...ClientOpt) (*Client, error) {
 		return nil, err
 	}
 	c := &Client{
-		hc:      &http.Client{Transport: otelhttp.NewTransport(http.DefaultTransport)},
+		hc:      &http.Client{},
 		baseURL: u,
 	}
 	for _, o := range opts {
@@ -155,10 +154,6 @@ func (c *Client) do(ctx context.Context, method string, path string, body io.Rea
 	if err != nil {
 		return
 	}
-	if method == http.MethodPost {
-		req.Header.Set("Content-Type", api.JsonMediaType)
-	}
-	req.Header.Set("Accept", api.JsonMediaType)
 	req.Header.Add("User-Agent", version.BuildData())
 	for _, o := range opts {
 		o(req)

api/client/builder/client_test.go

@@ -12,7 +12,6 @@ import (
 	"testing"
 
 	"github.com/prysmaticlabs/go-bitfield"
-	"github.com/prysmaticlabs/prysm/v5/api"
 	"github.com/prysmaticlabs/prysm/v5/api/server/structs"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
@@ -90,8 +89,6 @@ func TestClient_RegisterValidator(t *testing.T) {
 	expectedPath := "/eth/v1/builder/validators"
 	hc := &http.Client{
 		Transport: roundtrip(func(r *http.Request) (*http.Response, error) {
-			require.Equal(t, api.JsonMediaType, r.Header.Get("Content-Type"))
-			require.Equal(t, api.JsonMediaType, r.Header.Get("Accept"))
 			body, err := io.ReadAll(r.Body)
 			defer func() {
 				require.NoError(t, r.Body.Close())
@@ -367,8 +364,8 @@ func TestSubmitBlindedBlock(t *testing.T) {
 			Transport: roundtrip(func(r *http.Request) (*http.Response, error) {
 				require.Equal(t, postBlindedBeaconBlockPath, r.URL.Path)
 				require.Equal(t, "bellatrix", r.Header.Get("Eth-Consensus-Version"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Content-Type"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Accept"))
+				require.Equal(t, "application/json", r.Header.Get("Content-Type"))
+				require.Equal(t, "application/json", r.Header.Get("Accept"))
 				return &http.Response{
 					StatusCode: http.StatusOK,
 					Body:       io.NopCloser(bytes.NewBufferString(testExampleExecutionPayload)),
@@ -395,8 +392,8 @@ func TestSubmitBlindedBlock(t *testing.T) {
 			Transport: roundtrip(func(r *http.Request) (*http.Response, error) {
 				require.Equal(t, postBlindedBeaconBlockPath, r.URL.Path)
 				require.Equal(t, "capella", r.Header.Get("Eth-Consensus-Version"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Content-Type"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Accept"))
+				require.Equal(t, "application/json", r.Header.Get("Content-Type"))
+				require.Equal(t, "application/json", r.Header.Get("Accept"))
 				return &http.Response{
 					StatusCode: http.StatusOK,
 					Body:       io.NopCloser(bytes.NewBufferString(testExampleExecutionPayloadCapella)),
@@ -426,8 +423,8 @@ func TestSubmitBlindedBlock(t *testing.T) {
 			Transport: roundtrip(func(r *http.Request) (*http.Response, error) {
 				require.Equal(t, postBlindedBeaconBlockPath, r.URL.Path)
 				require.Equal(t, "deneb", r.Header.Get("Eth-Consensus-Version"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Content-Type"))
-				require.Equal(t, api.JsonMediaType, r.Header.Get("Accept"))
+				require.Equal(t, "application/json", r.Header.Get("Content-Type"))
+				require.Equal(t, "application/json", r.Header.Get("Accept"))
 				var req structs.SignedBlindedBeaconBlockDeneb
 				err := json.NewDecoder(r.Body).Decode(&req)
 				require.NoError(t, err)

api/server/httprest/options.go

@@ -1,9 +1,10 @@
 package httprest
 
 import (
-	"net/http"
 	"time"
 
+	"net/http"
+
 	"github.com/prysmaticlabs/prysm/v5/api/server/middleware"
 )
 

api/server/structs/BUILD.bazel

@@ -4,13 +4,13 @@ go_library(
     name = "go_default_library",
     srcs = [
         "block.go",
-        "block_execution.go",
+        "block_epbs.go",
         "conversions.go",
         "conversions_blob.go",
         "conversions_block.go",
-        "conversions_block_execution.go",
         "conversions_lightclient.go",
         "conversions_state.go",
+        "converstions_block_epbs.go",
         "endpoints_beacon.go",
         "endpoints_blob.go",
         "endpoints_builder.go",
@@ -49,16 +49,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = [
-        "conversions_block_execution_test.go",
-        "conversions_test.go",
-    ],
+    srcs = ["conversions_test.go"],
     embed = [":go_default_library"],
     deps = [
-        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//testing/require:go_default_library",
-        "@com_github_ethereum_go_ethereum//common:go_default_library",
-        "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",
     ],
 )

api/server/structs/block.go

@@ -186,6 +186,40 @@ type BlindedBeaconBlockBodyBellatrix struct {
 	ExecutionPayloadHeader *ExecutionPayloadHeader `json:"execution_payload_header"`
 }
 
+type ExecutionPayload struct {
+	ParentHash    string   `json:"parent_hash"`
+	FeeRecipient  string   `json:"fee_recipient"`
+	StateRoot     string   `json:"state_root"`
+	ReceiptsRoot  string   `json:"receipts_root"`
+	LogsBloom     string   `json:"logs_bloom"`
+	PrevRandao    string   `json:"prev_randao"`
+	BlockNumber   string   `json:"block_number"`
+	GasLimit      string   `json:"gas_limit"`
+	GasUsed       string   `json:"gas_used"`
+	Timestamp     string   `json:"timestamp"`
+	ExtraData     string   `json:"extra_data"`
+	BaseFeePerGas string   `json:"base_fee_per_gas"`
+	BlockHash     string   `json:"block_hash"`
+	Transactions  []string `json:"transactions"`
+}
+
+type ExecutionPayloadHeader struct {
+	ParentHash       string `json:"parent_hash"`
+	FeeRecipient     string `json:"fee_recipient"`
+	StateRoot        string `json:"state_root"`
+	ReceiptsRoot     string `json:"receipts_root"`
+	LogsBloom        string `json:"logs_bloom"`
+	PrevRandao       string `json:"prev_randao"`
+	BlockNumber      string `json:"block_number"`
+	GasLimit         string `json:"gas_limit"`
+	GasUsed          string `json:"gas_used"`
+	Timestamp        string `json:"timestamp"`
+	ExtraData        string `json:"extra_data"`
+	BaseFeePerGas    string `json:"base_fee_per_gas"`
+	BlockHash        string `json:"block_hash"`
+	TransactionsRoot string `json:"transactions_root"`
+}
+
 // ----------------------------------------------------------------------------
 // Capella
 // ----------------------------------------------------------------------------
@@ -264,6 +298,42 @@ type BlindedBeaconBlockBodyCapella struct {
 	BLSToExecutionChanges  []*SignedBLSToExecutionChange  `json:"bls_to_execution_changes"`
 }
 
+type ExecutionPayloadCapella struct {
+	ParentHash    string        `json:"parent_hash"`
+	FeeRecipient  string        `json:"fee_recipient"`
+	StateRoot     string        `json:"state_root"`
+	ReceiptsRoot  string        `json:"receipts_root"`
+	LogsBloom     string        `json:"logs_bloom"`
+	PrevRandao    string        `json:"prev_randao"`
+	BlockNumber   string        `json:"block_number"`
+	GasLimit      string        `json:"gas_limit"`
+	GasUsed       string        `json:"gas_used"`
+	Timestamp     string        `json:"timestamp"`
+	ExtraData     string        `json:"extra_data"`
+	BaseFeePerGas string        `json:"base_fee_per_gas"`
+	BlockHash     string        `json:"block_hash"`
+	Transactions  []string      `json:"transactions"`
+	Withdrawals   []*Withdrawal `json:"withdrawals"`
+}
+
+type ExecutionPayloadHeaderCapella struct {
+	ParentHash       string `json:"parent_hash"`
+	FeeRecipient     string `json:"fee_recipient"`
+	StateRoot        string `json:"state_root"`
+	ReceiptsRoot     string `json:"receipts_root"`
+	LogsBloom        string `json:"logs_bloom"`
+	PrevRandao       string `json:"prev_randao"`
+	BlockNumber      string `json:"block_number"`
+	GasLimit         string `json:"gas_limit"`
+	GasUsed          string `json:"gas_used"`
+	Timestamp        string `json:"timestamp"`
+	ExtraData        string `json:"extra_data"`
+	BaseFeePerGas    string `json:"base_fee_per_gas"`
+	BlockHash        string `json:"block_hash"`
+	TransactionsRoot string `json:"transactions_root"`
+	WithdrawalsRoot  string `json:"withdrawals_root"`
+}
+
 // ----------------------------------------------------------------------------
 // Deneb
 // ----------------------------------------------------------------------------
@@ -356,6 +426,46 @@ type BlindedBeaconBlockBodyDeneb struct {
 	BlobKzgCommitments     []string                      `json:"blob_kzg_commitments"`
 }
 
+type ExecutionPayloadDeneb struct {
+	ParentHash    string        `json:"parent_hash"`
+	FeeRecipient  string        `json:"fee_recipient"`
+	StateRoot     string        `json:"state_root"`
+	ReceiptsRoot  string        `json:"receipts_root"`
+	LogsBloom     string        `json:"logs_bloom"`
+	PrevRandao    string        `json:"prev_randao"`
+	BlockNumber   string        `json:"block_number"`
+	GasLimit      string        `json:"gas_limit"`
+	GasUsed       string        `json:"gas_used"`
+	Timestamp     string        `json:"timestamp"`
+	ExtraData     string        `json:"extra_data"`
+	BaseFeePerGas string        `json:"base_fee_per_gas"`
+	BlockHash     string        `json:"block_hash"`
+	Transactions  []string      `json:"transactions"`
+	Withdrawals   []*Withdrawal `json:"withdrawals"`
+	BlobGasUsed   string        `json:"blob_gas_used"`
+	ExcessBlobGas string        `json:"excess_blob_gas"`
+}
+
+type ExecutionPayloadHeaderDeneb struct {
+	ParentHash       string `json:"parent_hash"`
+	FeeRecipient     string `json:"fee_recipient"`
+	StateRoot        string `json:"state_root"`
+	ReceiptsRoot     string `json:"receipts_root"`
+	LogsBloom        string `json:"logs_bloom"`
+	PrevRandao       string `json:"prev_randao"`
+	BlockNumber      string `json:"block_number"`
+	GasLimit         string `json:"gas_limit"`
+	GasUsed          string `json:"gas_used"`
+	Timestamp        string `json:"timestamp"`
+	ExtraData        string `json:"extra_data"`
+	BaseFeePerGas    string `json:"base_fee_per_gas"`
+	BlockHash        string `json:"block_hash"`
+	TransactionsRoot string `json:"transactions_root"`
+	WithdrawalsRoot  string `json:"withdrawals_root"`
+	BlobGasUsed      string `json:"blob_gas_used"`
+	ExcessBlobGas    string `json:"excess_blob_gas"`
+}
+
 // ----------------------------------------------------------------------------
 // Electra
 // ----------------------------------------------------------------------------
@@ -450,6 +560,14 @@ type BlindedBeaconBlockBodyElectra struct {
 	ExecutionRequests      *ExecutionRequests            `json:"execution_requests"`
 }
 
+type (
+	ExecutionRequests struct {
+		Deposits       []*DepositRequest       `json:"deposits"`
+		Withdrawals    []*WithdrawalRequest    `json:"withdrawals"`
+		Consolidations []*ConsolidationRequest `json:"consolidations"`
+	}
+)
+
 // ----------------------------------------------------------------------------
 // Fulu
 // ----------------------------------------------------------------------------
@@ -461,14 +579,14 @@ type SignedBeaconBlockContentsFulu struct {
 }
 
 type BeaconBlockContentsFulu struct {
-	Block     *BeaconBlockElectra `json:"block"`
-	KzgProofs []string            `json:"kzg_proofs"`
-	Blobs     []string            `json:"blobs"`
+	Block     *BeaconBlockFulu `json:"block"`
+	KzgProofs []string         `json:"kzg_proofs"`
+	Blobs     []string         `json:"blobs"`
 }
 
 type SignedBeaconBlockFulu struct {
-	Message   *BeaconBlockElectra `json:"message"`
-	Signature string              `json:"signature"`
+	Message   *BeaconBlockFulu `json:"message"`
+	Signature string           `json:"signature"`
 }
 
 var _ SignedMessageJsoner = &SignedBeaconBlockFulu{}
@@ -481,12 +599,36 @@ func (s *SignedBeaconBlockFulu) SigString() string {
 	return s.Signature
 }
 
+type BeaconBlockFulu struct {
+	Slot          string               `json:"slot"`
+	ProposerIndex string               `json:"proposer_index"`
+	ParentRoot    string               `json:"parent_root"`
+	StateRoot     string               `json:"state_root"`
+	Body          *BeaconBlockBodyFulu `json:"body"`
+}
+
+type BeaconBlockBodyFulu struct {
+	RandaoReveal          string                        `json:"randao_reveal"`
+	Eth1Data              *Eth1Data                     `json:"eth1_data"`
+	Graffiti              string                        `json:"graffiti"`
+	ProposerSlashings     []*ProposerSlashing           `json:"proposer_slashings"`
+	AttesterSlashings     []*AttesterSlashingElectra    `json:"attester_slashings"`
+	Attestations          []*AttestationElectra         `json:"attestations"`
+	Deposits              []*Deposit                    `json:"deposits"`
+	VoluntaryExits        []*SignedVoluntaryExit        `json:"voluntary_exits"`
+	SyncAggregate         *SyncAggregate                `json:"sync_aggregate"`
+	ExecutionPayload      *ExecutionPayloadDeneb        `json:"execution_payload"`
+	BLSToExecutionChanges []*SignedBLSToExecutionChange `json:"bls_to_execution_changes"`
+	BlobKzgCommitments    []string                      `json:"blob_kzg_commitments"`
+	ExecutionRequests     *ExecutionRequests            `json:"execution_requests"`
+}
+
 type BlindedBeaconBlockFulu struct {
-	Slot          string                         `json:"slot"`
-	ProposerIndex string                         `json:"proposer_index"`
-	ParentRoot    string                         `json:"parent_root"`
-	StateRoot     string                         `json:"state_root"`
-	Body          *BlindedBeaconBlockBodyElectra `json:"body"`
+	Slot          string                      `json:"slot"`
+	ProposerIndex string                      `json:"proposer_index"`
+	ParentRoot    string                      `json:"parent_root"`
+	StateRoot     string                      `json:"state_root"`
+	Body          *BlindedBeaconBlockBodyFulu `json:"body"`
 }
 
 type SignedBlindedBeaconBlockFulu struct {
@@ -503,3 +645,19 @@ func (s *SignedBlindedBeaconBlockFulu) MessageRawJson() ([]byte, error) {
 func (s *SignedBlindedBeaconBlockFulu) SigString() string {
 	return s.Signature
 }
+
+type BlindedBeaconBlockBodyFulu struct {
+	RandaoReveal           string                        `json:"randao_reveal"`
+	Eth1Data               *Eth1Data                     `json:"eth1_data"`
+	Graffiti               string                        `json:"graffiti"`
+	ProposerSlashings      []*ProposerSlashing           `json:"proposer_slashings"`
+	AttesterSlashings      []*AttesterSlashingElectra    `json:"attester_slashings"`
+	Attestations           []*AttestationElectra         `json:"attestations"`
+	Deposits               []*Deposit                    `json:"deposits"`
+	VoluntaryExits         []*SignedVoluntaryExit        `json:"voluntary_exits"`
+	SyncAggregate          *SyncAggregate                `json:"sync_aggregate"`
+	ExecutionPayloadHeader *ExecutionPayloadHeaderDeneb  `json:"execution_payload_header"`
+	BLSToExecutionChanges  []*SignedBLSToExecutionChange `json:"bls_to_execution_changes"`
+	BlobKzgCommitments     []string                      `json:"blob_kzg_commitments"`
+	ExecutionRequests      *ExecutionRequests            `json:"execution_requests"`
+}

api/server/structs/block_epbs.go

@@ -0,0 +1,93 @@
+package structs
+
+import "encoding/json"
+
+// ----------------------------------------------------------------------------
+// Epbs
+// ----------------------------------------------------------------------------
+type SignedBeaconBlockEpbs struct {
+	Message   *BeaconBlockEpbs `json:"message"`
+	Signature string           `json:"signature"`
+}
+
+var _ SignedMessageJsoner = &SignedBeaconBlockElectra{}
+
+func (s *SignedBeaconBlockEpbs) MessageRawJson() ([]byte, error) {
+	return json.Marshal(s.Message)
+}
+
+func (s *SignedBeaconBlockEpbs) SigString() string {
+	return s.Signature
+}
+
+type BeaconBlockEpbs struct {
+	Slot          string               `json:"slot"`
+	ProposerIndex string               `json:"proposer_index"`
+	ParentRoot    string               `json:"parent_root"`
+	StateRoot     string               `json:"state_root"`
+	Body          *BeaconBlockBodyEpbs `json:"body"`
+}
+
+type BeaconBlockBodyEpbs struct {
+	RandaoReveal                 string                        `json:"randao_reveal"`
+	Eth1Data                     *Eth1Data                     `json:"eth1_data"`
+	Graffiti                     string                        `json:"graffiti"`
+	ProposerSlashings            []*ProposerSlashing           `json:"proposer_slashings"`
+	AttesterSlashings            []*AttesterSlashingElectra    `json:"attester_slashings"`
+	Attestations                 []*AttestationElectra         `json:"attestations"`
+	Deposits                     []*Deposit                    `json:"deposits"`
+	VoluntaryExits               []*SignedVoluntaryExit        `json:"voluntary_exits"`
+	SyncAggregate                *SyncAggregate                `json:"sync_aggregate"`
+	BLSToExecutionChanges        []*SignedBLSToExecutionChange `json:"bls_to_execution_changes"`
+	SignedExecutionPayloadHeader *SignedExecutionPayloadHeader `json:"signed_execution_payload_header"`
+	PayloadAttestations          []*PayloadAttestation         `json:"payload_attestations"`
+}
+
+type SignedExecutionPayloadEnvelope struct {
+	Message   *ExecutionPayloadEnvelope `json:"message"`
+	Signature string                    `json:"signature"`
+}
+
+type ExecutionPayloadEnvelope struct {
+	Payload            *ExecutionPayloadDeneb `json:"payload"`
+	ExecutionRequests  *ExecutionRequests     `json:"execution_requests"`
+	BuilderIndex       string                 `json:"builder_index"`
+	BeaconBlockRoot    string                 `json:"beacon_block_root"`
+	Slot               string                 `json:"slot"`
+	BlobKzgCommitments []string               `json:"blob_kzg_commitments"`
+	StateRoot          string                 `json:"state_root"`
+}
+type SignedExecutionPayloadHeader struct {
+	Message   *ExecutionPayloadHeaderEPBS `json:"message"`
+	Signature string                      `json:"signature"`
+}
+
+type ExecutionPayloadHeaderEPBS struct {
+	ParentBlockHash        string `json:"parent_block_hash"`
+	ParentBlockRoot        string `json:"parent_block_root"`
+	BlockHash              string `json:"block_hash"`
+	GasLimit               string `json:"gas_limit"`
+	BuilderIndex           string `json:"builder_index"`
+	Slot                   string `json:"slot"`
+	Value                  string `json:"value"`
+	BlobKzgCommitmentsRoot string `json:"blob_kzg_commitments_root"`
+}
+
+type PayloadAttestation struct {
+	AggregationBits string                  `json:"aggregation_bits"`
+	Data            *PayloadAttestationData `json:"data"`
+	Signature       string                  `json:"signature"`
+}
+
+type PayloadAttestationData struct {
+	BeaconBlockRoot string `json:"beacon_block_root"`
+	Slot            string `json:"slot"`
+	PayloadStatus   string `json:"payload_status"`
+}
+
+type GetExecutionPayloadV1Response struct {
+	Version             string                          `json:"version"`
+	ExecutionOptimistic bool                            `json:"execution_optimistic"`
+	Finalized           bool                            `json:"finalized"`
+	Data                *SignedExecutionPayloadEnvelope `json:"data"`
+}

api/server/structs/block_execution.go

@@ -1,157 +0,0 @@
-package structs
-
-// ----------------------------------------------------------------------------
-// Bellatrix
-// ----------------------------------------------------------------------------
-
-type ExecutionPayload struct {
-	ParentHash    string   `json:"parent_hash"`
-	FeeRecipient  string   `json:"fee_recipient"`
-	StateRoot     string   `json:"state_root"`
-	ReceiptsRoot  string   `json:"receipts_root"`
-	LogsBloom     string   `json:"logs_bloom"`
-	PrevRandao    string   `json:"prev_randao"`
-	BlockNumber   string   `json:"block_number"`
-	GasLimit      string   `json:"gas_limit"`
-	GasUsed       string   `json:"gas_used"`
-	Timestamp     string   `json:"timestamp"`
-	ExtraData     string   `json:"extra_data"`
-	BaseFeePerGas string   `json:"base_fee_per_gas"`
-	BlockHash     string   `json:"block_hash"`
-	Transactions  []string `json:"transactions"`
-}
-
-type ExecutionPayloadHeader struct {
-	ParentHash       string `json:"parent_hash"`
-	FeeRecipient     string `json:"fee_recipient"`
-	StateRoot        string `json:"state_root"`
-	ReceiptsRoot     string `json:"receipts_root"`
-	LogsBloom        string `json:"logs_bloom"`
-	PrevRandao       string `json:"prev_randao"`
-	BlockNumber      string `json:"block_number"`
-	GasLimit         string `json:"gas_limit"`
-	GasUsed          string `json:"gas_used"`
-	Timestamp        string `json:"timestamp"`
-	ExtraData        string `json:"extra_data"`
-	BaseFeePerGas    string `json:"base_fee_per_gas"`
-	BlockHash        string `json:"block_hash"`
-	TransactionsRoot string `json:"transactions_root"`
-}
-
-// ----------------------------------------------------------------------------
-// Capella
-// ----------------------------------------------------------------------------
-
-type ExecutionPayloadCapella struct {
-	ParentHash    string        `json:"parent_hash"`
-	FeeRecipient  string        `json:"fee_recipient"`
-	StateRoot     string        `json:"state_root"`
-	ReceiptsRoot  string        `json:"receipts_root"`
-	LogsBloom     string        `json:"logs_bloom"`
-	PrevRandao    string        `json:"prev_randao"`
-	BlockNumber   string        `json:"block_number"`
-	GasLimit      string        `json:"gas_limit"`
-	GasUsed       string        `json:"gas_used"`
-	Timestamp     string        `json:"timestamp"`
-	ExtraData     string        `json:"extra_data"`
-	BaseFeePerGas string        `json:"base_fee_per_gas"`
-	BlockHash     string        `json:"block_hash"`
-	Transactions  []string      `json:"transactions"`
-	Withdrawals   []*Withdrawal `json:"withdrawals"`
-}
-
-type ExecutionPayloadHeaderCapella struct {
-	ParentHash       string `json:"parent_hash"`
-	FeeRecipient     string `json:"fee_recipient"`
-	StateRoot        string `json:"state_root"`
-	ReceiptsRoot     string `json:"receipts_root"`
-	LogsBloom        string `json:"logs_bloom"`
-	PrevRandao       string `json:"prev_randao"`
-	BlockNumber      string `json:"block_number"`
-	GasLimit         string `json:"gas_limit"`
-	GasUsed          string `json:"gas_used"`
-	Timestamp        string `json:"timestamp"`
-	ExtraData        string `json:"extra_data"`
-	BaseFeePerGas    string `json:"base_fee_per_gas"`
-	BlockHash        string `json:"block_hash"`
-	TransactionsRoot string `json:"transactions_root"`
-	WithdrawalsRoot  string `json:"withdrawals_root"`
-}
-
-// ----------------------------------------------------------------------------
-// Deneb
-// ----------------------------------------------------------------------------
-
-type ExecutionPayloadDeneb struct {
-	ParentHash    string        `json:"parent_hash"`
-	FeeRecipient  string        `json:"fee_recipient"`
-	StateRoot     string        `json:"state_root"`
-	ReceiptsRoot  string        `json:"receipts_root"`
-	LogsBloom     string        `json:"logs_bloom"`
-	PrevRandao    string        `json:"prev_randao"`
-	BlockNumber   string        `json:"block_number"`
-	GasLimit      string        `json:"gas_limit"`
-	GasUsed       string        `json:"gas_used"`
-	Timestamp     string        `json:"timestamp"`
-	ExtraData     string        `json:"extra_data"`
-	BaseFeePerGas string        `json:"base_fee_per_gas"`
-	BlockHash     string        `json:"block_hash"`
-	Transactions  []string      `json:"transactions"`
-	Withdrawals   []*Withdrawal `json:"withdrawals"`
-	BlobGasUsed   string        `json:"blob_gas_used"`
-	ExcessBlobGas string        `json:"excess_blob_gas"`
-}
-
-type ExecutionPayloadHeaderDeneb struct {
-	ParentHash       string `json:"parent_hash"`
-	FeeRecipient     string `json:"fee_recipient"`
-	StateRoot        string `json:"state_root"`
-	ReceiptsRoot     string `json:"receipts_root"`
-	LogsBloom        string `json:"logs_bloom"`
-	PrevRandao       string `json:"prev_randao"`
-	BlockNumber      string `json:"block_number"`
-	GasLimit         string `json:"gas_limit"`
-	GasUsed          string `json:"gas_used"`
-	Timestamp        string `json:"timestamp"`
-	ExtraData        string `json:"extra_data"`
-	BaseFeePerGas    string `json:"base_fee_per_gas"`
-	BlockHash        string `json:"block_hash"`
-	TransactionsRoot string `json:"transactions_root"`
-	WithdrawalsRoot  string `json:"withdrawals_root"`
-	BlobGasUsed      string `json:"blob_gas_used"`
-	ExcessBlobGas    string `json:"excess_blob_gas"`
-}
-
-// ----------------------------------------------------------------------------
-// Electra
-// ----------------------------------------------------------------------------
-
-type ExecutionRequests struct {
-	Deposits       []*DepositRequest       `json:"deposits"`
-	Withdrawals    []*WithdrawalRequest    `json:"withdrawals"`
-	Consolidations []*ConsolidationRequest `json:"consolidations"`
-}
-
-type DepositRequest struct {
-	Pubkey                string `json:"pubkey"`
-	WithdrawalCredentials string `json:"withdrawal_credentials"`
-	Amount                string `json:"amount"`
-	Signature             string `json:"signature"`
-	Index                 string `json:"index"`
-}
-
-type WithdrawalRequest struct {
-	SourceAddress   string `json:"source_address"`
-	ValidatorPubkey string `json:"validator_pubkey"`
-	Amount          string `json:"amount"`
-}
-
-type ConsolidationRequest struct {
-	SourceAddress string `json:"source_address"`
-	SourcePubkey  string `json:"source_pubkey"`
-	TargetPubkey  string `json:"target_pubkey"`
-}
-
-// ----------------------------------------------------------------------------
-// Fulu
-// ----------------------------------------------------------------------------

api/server/structs/conversions.go

@@ -52,9 +52,6 @@ func HistoricalSummaryFromConsensus(s *eth.HistoricalSummary) *HistoricalSummary
 }
 
 func (s *SignedBLSToExecutionChange) ToConsensus() (*eth.SignedBLSToExecutionChange, error) {
-	if s.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
-	}
 	change, err := s.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
@@ -106,17 +103,14 @@ func SignedBLSChangeFromConsensus(ch *eth.SignedBLSToExecutionChange) *SignedBLS
 
 func SignedBLSChangesToConsensus(src []*SignedBLSToExecutionChange) ([]*eth.SignedBLSToExecutionChange, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "SignedBLSToExecutionChanges")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 16)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "SignedBLSToExecutionChanges")
+		return nil, err
 	}
 	changes := make([]*eth.SignedBLSToExecutionChange, len(src))
 	for i, ch := range src {
-		if ch == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d]", i))
-		}
 		changes[i], err = ch.ToConsensus()
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d]", i))
@@ -162,9 +156,6 @@ func ForkFromConsensus(f *eth.Fork) *Fork {
 }
 
 func (s *SignedValidatorRegistration) ToConsensus() (*eth.SignedValidatorRegistrationV1, error) {
-	if s.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
-	}
 	msg, err := s.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
@@ -221,9 +212,6 @@ func SignedValidatorRegistrationFromConsensus(vr *eth.SignedValidatorRegistratio
 }
 
 func (s *SignedContributionAndProof) ToConsensus() (*eth.SignedContributionAndProof, error) {
-	if s.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
-	}
 	msg, err := s.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
@@ -248,9 +236,6 @@ func SignedContributionAndProofFromConsensus(c *eth.SignedContributionAndProof)
 }
 
 func (c *ContributionAndProof) ToConsensus() (*eth.ContributionAndProof, error) {
-	if c.Contribution == nil {
-		return nil, server.NewDecodeError(errNilValue, "Contribution")
-	}
 	contribution, err := c.Contribution.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Contribution")
@@ -322,9 +307,6 @@ func SyncCommitteeContributionFromConsensus(c *eth.SyncCommitteeContribution) *S
 }
 
 func (s *SignedAggregateAttestationAndProof) ToConsensus() (*eth.SignedAggregateAttestationAndProof, error) {
-	if s.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
-	}
 	msg, err := s.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
@@ -345,9 +327,6 @@ func (a *AggregateAttestationAndProof) ToConsensus() (*eth.AggregateAttestationA
 	if err != nil {
 		return nil, server.NewDecodeError(err, "AggregatorIndex")
 	}
-	if a.Aggregate == nil {
-		return nil, server.NewDecodeError(errNilValue, "Aggregate")
-	}
 	agg, err := a.Aggregate.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Aggregate")
@@ -364,9 +343,6 @@ func (a *AggregateAttestationAndProof) ToConsensus() (*eth.AggregateAttestationA
 }
 
 func (s *SignedAggregateAttestationAndProofElectra) ToConsensus() (*eth.SignedAggregateAttestationAndProofElectra, error) {
-	if s.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
-	}
 	msg, err := s.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
@@ -387,9 +363,6 @@ func (a *AggregateAttestationAndProofElectra) ToConsensus() (*eth.AggregateAttes
 	if err != nil {
 		return nil, server.NewDecodeError(err, "AggregatorIndex")
 	}
-	if a.Aggregate == nil {
-		return nil, server.NewDecodeError(errNilValue, "Aggregate")
-	}
 	agg, err := a.Aggregate.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Aggregate")
@@ -410,9 +383,6 @@ func (a *Attestation) ToConsensus() (*eth.Attestation, error) {
 	if err != nil {
 		return nil, server.NewDecodeError(err, "AggregationBits")
 	}
-	if a.Data == nil {
-		return nil, server.NewDecodeError(errNilValue, "Data")
-	}
 	data, err := a.Data.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Data")
@@ -442,9 +412,6 @@ func (a *AttestationElectra) ToConsensus() (*eth.AttestationElectra, error) {
 	if err != nil {
 		return nil, server.NewDecodeError(err, "AggregationBits")
 	}
-	if a.Data == nil {
-		return nil, server.NewDecodeError(errNilValue, "Data")
-	}
 	data, err := a.Data.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Data")
@@ -466,15 +433,6 @@ func (a *AttestationElectra) ToConsensus() (*eth.AttestationElectra, error) {
 	}, nil
 }
 
-func SingleAttFromConsensus(a *eth.SingleAttestation) *SingleAttestation {
-	return &SingleAttestation{
-		CommitteeIndex: fmt.Sprintf("%d", a.CommitteeId),
-		AttesterIndex:  fmt.Sprintf("%d", a.AttesterIndex),
-		Data:           AttDataFromConsensus(a.Data),
-		Signature:      hexutil.Encode(a.Signature),
-	}
-}
-
 func (a *SingleAttestation) ToConsensus() (*eth.SingleAttestation, error) {
 	ci, err := strconv.ParseUint(a.CommitteeIndex, 10, 64)
 	if err != nil {
@@ -484,9 +442,6 @@ func (a *SingleAttestation) ToConsensus() (*eth.SingleAttestation, error) {
 	if err != nil {
 		return nil, server.NewDecodeError(err, "AttesterIndex")
 	}
-	if a.Data == nil {
-		return nil, server.NewDecodeError(errNilValue, "Data")
-	}
 	data, err := a.Data.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Data")
@@ -526,16 +481,10 @@ func (a *AttestationData) ToConsensus() (*eth.AttestationData, error) {
 	if err != nil {
 		return nil, server.NewDecodeError(err, "BeaconBlockRoot")
 	}
-	if a.Source == nil {
-		return nil, server.NewDecodeError(errNilValue, "Source")
-	}
 	source, err := a.Source.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Source")
 	}
-	if a.Target == nil {
-		return nil, server.NewDecodeError(errNilValue, "Target")
-	}
 	target, err := a.Target.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Target")
@@ -635,17 +584,15 @@ func (b *BeaconCommitteeSubscription) ToConsensus() (*validator.BeaconCommitteeS
 }
 
 func (e *SignedVoluntaryExit) ToConsensus() (*eth.SignedVoluntaryExit, error) {
-	if e.Message == nil {
-		return nil, server.NewDecodeError(errNilValue, "Message")
+	sig, err := bytesutil.DecodeHexWithLength(e.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
 	}
 	exit, err := e.Message.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Message")
 	}
-	sig, err := bytesutil.DecodeHexWithLength(e.Signature, fieldparams.BLSSignatureLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Signature")
-	}
+
 	return &eth.SignedVoluntaryExit{
 		Exit:      exit,
 		Signature: sig,
@@ -748,16 +695,10 @@ func Eth1DataFromConsensus(e1d *eth.Eth1Data) *Eth1Data {
 }
 
 func (s *ProposerSlashing) ToConsensus() (*eth.ProposerSlashing, error) {
-	if s.SignedHeader1 == nil {
-		return nil, server.NewDecodeError(errNilValue, "SignedHeader1")
-	}
 	h1, err := s.SignedHeader1.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "SignedHeader1")
 	}
-	if s.SignedHeader2 == nil {
-		return nil, server.NewDecodeError(errNilValue, "SignedHeader2")
-	}
 	h2, err := s.SignedHeader2.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "SignedHeader2")
@@ -770,16 +711,10 @@ func (s *ProposerSlashing) ToConsensus() (*eth.ProposerSlashing, error) {
 }
 
 func (s *AttesterSlashing) ToConsensus() (*eth.AttesterSlashing, error) {
-	if s.Attestation1 == nil {
-		return nil, server.NewDecodeError(errNilValue, "Attestation1")
-	}
 	att1, err := s.Attestation1.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Attestation1")
 	}
-	if s.Attestation2 == nil {
-		return nil, server.NewDecodeError(errNilValue, "Attestation2")
-	}
 	att2, err := s.Attestation2.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Attestation2")
@@ -788,16 +723,10 @@ func (s *AttesterSlashing) ToConsensus() (*eth.AttesterSlashing, error) {
 }
 
 func (s *AttesterSlashingElectra) ToConsensus() (*eth.AttesterSlashingElectra, error) {
-	if s.Attestation1 == nil {
-		return nil, server.NewDecodeError(errNilValue, "Attestation1")
-	}
 	att1, err := s.Attestation1.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Attestation1")
 	}
-	if s.Attestation2 == nil {
-		return nil, server.NewDecodeError(errNilValue, "Attestation2")
-	}
 	att2, err := s.Attestation2.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Attestation2")
@@ -818,9 +747,6 @@ func (a *IndexedAttestation) ToConsensus() (*eth.IndexedAttestation, error) {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("AttestingIndices[%d]", i))
 		}
 	}
-	if a.Data == nil {
-		return nil, server.NewDecodeError(errNilValue, "Data")
-	}
 	data, err := a.Data.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Data")
@@ -853,9 +779,6 @@ func (a *IndexedAttestationElectra) ToConsensus() (*eth.IndexedAttestationElectr
 			return nil, server.NewDecodeError(err, fmt.Sprintf("AttestingIndices[%d]", i))
 		}
 	}
-	if a.Data == nil {
-		return nil, server.NewDecodeError(errNilValue, "Data")
-	}
 	data, err := a.Data.ToConsensus()
 	if err != nil {
 		return nil, server.NewDecodeError(err, "Data")
@@ -889,13 +812,133 @@ func WithdrawalFromConsensus(w *enginev1.Withdrawal) *Withdrawal {
 	}
 }
 
+func WithdrawalRequestsFromConsensus(ws []*enginev1.WithdrawalRequest) []*WithdrawalRequest {
+	result := make([]*WithdrawalRequest, len(ws))
+	for i, w := range ws {
+		result[i] = WithdrawalRequestFromConsensus(w)
+	}
+	return result
+}
+
+func WithdrawalRequestFromConsensus(w *enginev1.WithdrawalRequest) *WithdrawalRequest {
+	return &WithdrawalRequest{
+		SourceAddress:   hexutil.Encode(w.SourceAddress),
+		ValidatorPubkey: hexutil.Encode(w.ValidatorPubkey),
+		Amount:          fmt.Sprintf("%d", w.Amount),
+	}
+}
+
+func (w *WithdrawalRequest) ToConsensus() (*enginev1.WithdrawalRequest, error) {
+	src, err := bytesutil.DecodeHexWithLength(w.SourceAddress, common.AddressLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SourceAddress")
+	}
+	pubkey, err := bytesutil.DecodeHexWithLength(w.ValidatorPubkey, fieldparams.BLSPubkeyLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ValidatorPubkey")
+	}
+	amount, err := strconv.ParseUint(w.Amount, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Amount")
+	}
+	return &enginev1.WithdrawalRequest{
+		SourceAddress:   src,
+		ValidatorPubkey: pubkey,
+		Amount:          amount,
+	}, nil
+}
+
+func ConsolidationRequestsFromConsensus(cs []*enginev1.ConsolidationRequest) []*ConsolidationRequest {
+	result := make([]*ConsolidationRequest, len(cs))
+	for i, c := range cs {
+		result[i] = ConsolidationRequestFromConsensus(c)
+	}
+	return result
+}
+
+func ConsolidationRequestFromConsensus(c *enginev1.ConsolidationRequest) *ConsolidationRequest {
+	return &ConsolidationRequest{
+		SourceAddress: hexutil.Encode(c.SourceAddress),
+		SourcePubkey:  hexutil.Encode(c.SourcePubkey),
+		TargetPubkey:  hexutil.Encode(c.TargetPubkey),
+	}
+}
+
+func (c *ConsolidationRequest) ToConsensus() (*enginev1.ConsolidationRequest, error) {
+	srcAddress, err := bytesutil.DecodeHexWithLength(c.SourceAddress, common.AddressLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SourceAddress")
+	}
+	srcPubkey, err := bytesutil.DecodeHexWithLength(c.SourcePubkey, fieldparams.BLSPubkeyLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SourcePubkey")
+	}
+	targetPubkey, err := bytesutil.DecodeHexWithLength(c.TargetPubkey, fieldparams.BLSPubkeyLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "TargetPubkey")
+	}
+	return &enginev1.ConsolidationRequest{
+		SourceAddress: srcAddress,
+		SourcePubkey:  srcPubkey,
+		TargetPubkey:  targetPubkey,
+	}, nil
+}
+
+func DepositRequestsFromConsensus(ds []*enginev1.DepositRequest) []*DepositRequest {
+	result := make([]*DepositRequest, len(ds))
+	for i, d := range ds {
+		result[i] = DepositRequestFromConsensus(d)
+	}
+	return result
+}
+
+func DepositRequestFromConsensus(d *enginev1.DepositRequest) *DepositRequest {
+	return &DepositRequest{
+		Pubkey:                hexutil.Encode(d.Pubkey),
+		WithdrawalCredentials: hexutil.Encode(d.WithdrawalCredentials),
+		Amount:                fmt.Sprintf("%d", d.Amount),
+		Signature:             hexutil.Encode(d.Signature),
+		Index:                 fmt.Sprintf("%d", d.Index),
+	}
+}
+
+func (d *DepositRequest) ToConsensus() (*enginev1.DepositRequest, error) {
+	pubkey, err := bytesutil.DecodeHexWithLength(d.Pubkey, fieldparams.BLSPubkeyLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Pubkey")
+	}
+	withdrawalCredentials, err := bytesutil.DecodeHexWithLength(d.WithdrawalCredentials, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "WithdrawalCredentials")
+	}
+	amount, err := strconv.ParseUint(d.Amount, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Amount")
+	}
+	sig, err := bytesutil.DecodeHexWithLength(d.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	index, err := strconv.ParseUint(d.Index, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Index")
+	}
+	return &enginev1.DepositRequest{
+		Pubkey:                pubkey,
+		WithdrawalCredentials: withdrawalCredentials,
+		Amount:                amount,
+		Signature:             sig,
+		Index:                 index,
+	}, nil
+}
+
 func ProposerSlashingsToConsensus(src []*ProposerSlashing) ([]*eth.ProposerSlashing, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "ProposerSlashings")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 16)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "ProposerSlashings")
+		return nil, err
 	}
 	proposerSlashings := make([]*eth.ProposerSlashing, len(src))
 	for i, s := range src {
@@ -1024,11 +1067,11 @@ func ProposerSlashingFromConsensus(src *eth.ProposerSlashing) *ProposerSlashing
 
 func AttesterSlashingsToConsensus(src []*AttesterSlashing) ([]*eth.AttesterSlashing, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "AttesterSlashings")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 2)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "AttesterSlashings")
+		return nil, err
 	}
 
 	attesterSlashings := make([]*eth.AttesterSlashing, len(src))
@@ -1039,19 +1082,10 @@ func AttesterSlashingsToConsensus(src []*AttesterSlashing) ([]*eth.AttesterSlash
 		if s.Attestation1 == nil {
 			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation1", i))
 		}
-
-		if s.Attestation1.Data == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation1.Data", i))
-		}
-
 		if s.Attestation2 == nil {
 			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation2", i))
 		}
 
-		if s.Attestation2.Data == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation2.Data", i))
-		}
-
 		a1Sig, err := bytesutil.DecodeHexWithLength(s.Attestation1.Signature, fieldparams.BLSSignatureLength)
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d].Attestation1.Signature", i))
@@ -1068,7 +1102,6 @@ func AttesterSlashingsToConsensus(src []*AttesterSlashing) ([]*eth.AttesterSlash
 			}
 			a1AttestingIndices[j] = attestingIndex
 		}
-
 		a1Data, err := s.Attestation1.Data.ToConsensus()
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d].Attestation1.Data", i))
@@ -1166,11 +1199,11 @@ func AttesterSlashingFromConsensus(src *eth.AttesterSlashing) *AttesterSlashing
 
 func AttesterSlashingsElectraToConsensus(src []*AttesterSlashingElectra) ([]*eth.AttesterSlashingElectra, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "AttesterSlashingsElectra")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, fieldparams.MaxAttesterSlashingsElectra)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "AttesterSlashingsElectra")
+		return nil, err
 	}
 
 	attesterSlashings := make([]*eth.AttesterSlashingElectra, len(src))
@@ -1178,23 +1211,13 @@ func AttesterSlashingsElectraToConsensus(src []*AttesterSlashingElectra) ([]*eth
 		if s == nil {
 			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d]", i))
 		}
-
 		if s.Attestation1 == nil {
 			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation1", i))
 		}
-
-		if s.Attestation1.Data == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation1.Data", i))
-		}
-
 		if s.Attestation2 == nil {
 			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation2", i))
 		}
 
-		if s.Attestation2.Data == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d].Attestation2.Data", i))
-		}
-
 		a1Sig, err := bytesutil.DecodeHexWithLength(s.Attestation1.Signature, fieldparams.BLSSignatureLength)
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d].Attestation1.Signature", i))
@@ -1308,18 +1331,15 @@ func AttesterSlashingElectraFromConsensus(src *eth.AttesterSlashingElectra) *Att
 
 func AttsToConsensus(src []*Attestation) ([]*eth.Attestation, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "Attestations")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 128)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "Attestations")
+		return nil, err
 	}
 
 	atts := make([]*eth.Attestation, len(src))
 	for i, a := range src {
-		if a == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d]", i))
-		}
 		atts[i], err = a.ToConsensus()
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d]", i))
@@ -1338,18 +1358,15 @@ func AttsFromConsensus(src []*eth.Attestation) []*Attestation {
 
 func AttsElectraToConsensus(src []*AttestationElectra) ([]*eth.AttestationElectra, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "AttestationsElectra")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 8)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "AttestationsElectra")
+		return nil, err
 	}
 
 	atts := make([]*eth.AttestationElectra, len(src))
 	for i, a := range src {
-		if a == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d]", i))
-		}
 		atts[i], err = a.ToConsensus()
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d]", i))
@@ -1368,11 +1385,11 @@ func AttsElectraFromConsensus(src []*eth.AttestationElectra) []*AttestationElect
 
 func DepositsToConsensus(src []*Deposit) ([]*eth.Deposit, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "Deposits")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 16)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "Deposits")
+		return nil, err
 	}
 
 	deposits := make([]*eth.Deposit, len(src))
@@ -1444,18 +1461,15 @@ func DepositsFromConsensus(src []*eth.Deposit) []*Deposit {
 
 func SignedExitsToConsensus(src []*SignedVoluntaryExit) ([]*eth.SignedVoluntaryExit, error) {
 	if src == nil {
-		return nil, server.NewDecodeError(errNilValue, "SignedVoluntaryExits")
+		return nil, errNilValue
 	}
 	err := slice.VerifyMaxLength(src, 16)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "SignedVoluntaryExits")
+		return nil, err
 	}
 
 	exits := make([]*eth.SignedVoluntaryExit, len(src))
 	for i, e := range src {
-		if e == nil {
-			return nil, server.NewDecodeError(errNilValue, fmt.Sprintf("[%d]", i))
-		}
 		exits[i], err = e.ToConsensus()
 		if err != nil {
 			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d]", i))

api/server/structs/conversions_block_execution.go

@@ -1,973 +0,0 @@
-package structs
-
-import (
-	"fmt"
-	"strconv"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/prysmaticlabs/prysm/v5/api/server"
-	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
-	"github.com/prysmaticlabs/prysm/v5/config/params"
-	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v5/container/slice"
-	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
-)
-
-// ----------------------------------------------------------------------------
-// Bellatrix
-// ----------------------------------------------------------------------------
-
-func ExecutionPayloadFromConsensus(payload *enginev1.ExecutionPayload) (*ExecutionPayload, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-	transactions := make([]string, len(payload.Transactions))
-	for i, tx := range payload.Transactions {
-		transactions[i] = hexutil.Encode(tx)
-	}
-
-	return &ExecutionPayload{
-		ParentHash:    hexutil.Encode(payload.ParentHash),
-		FeeRecipient:  hexutil.Encode(payload.FeeRecipient),
-		StateRoot:     hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:  hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:     hexutil.Encode(payload.LogsBloom),
-		PrevRandao:    hexutil.Encode(payload.PrevRandao),
-		BlockNumber:   fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:      fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:       fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:     fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:     hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas: baseFeePerGas,
-		BlockHash:     hexutil.Encode(payload.BlockHash),
-		Transactions:  transactions,
-	}, nil
-}
-
-func (e *ExecutionPayload) ToConsensus() (*enginev1.ExecutionPayload, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayload")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockHash")
-	}
-	err = slice.VerifyMaxLength(e.Transactions, fieldparams.MaxTxsPerPayloadLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Transactions")
-	}
-	payloadTxs := make([][]byte, len(e.Transactions))
-	for i, tx := range e.Transactions {
-		payloadTxs[i], err = bytesutil.DecodeHexWithMaxLength(tx, fieldparams.MaxBytesPerTxLength)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Transactions[%d]", i))
-		}
-	}
-	return &enginev1.ExecutionPayload{
-		ParentHash:    payloadParentHash,
-		FeeRecipient:  payloadFeeRecipient,
-		StateRoot:     payloadStateRoot,
-		ReceiptsRoot:  payloadReceiptsRoot,
-		LogsBloom:     payloadLogsBloom,
-		PrevRandao:    payloadPrevRandao,
-		BlockNumber:   payloadBlockNumber,
-		GasLimit:      payloadGasLimit,
-		GasUsed:       payloadGasUsed,
-		Timestamp:     payloadTimestamp,
-		ExtraData:     payloadExtraData,
-		BaseFeePerGas: payloadBaseFeePerGas,
-		BlockHash:     payloadBlockHash,
-		Transactions:  payloadTxs,
-	}, nil
-}
-
-func ExecutionPayloadHeaderFromConsensus(payload *enginev1.ExecutionPayloadHeader) (*ExecutionPayloadHeader, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-
-	return &ExecutionPayloadHeader{
-		ParentHash:       hexutil.Encode(payload.ParentHash),
-		FeeRecipient:     hexutil.Encode(payload.FeeRecipient),
-		StateRoot:        hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:     hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:        hexutil.Encode(payload.LogsBloom),
-		PrevRandao:       hexutil.Encode(payload.PrevRandao),
-		BlockNumber:      fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:         fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:          fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:        fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:        hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas:    baseFeePerGas,
-		BlockHash:        hexutil.Encode(payload.BlockHash),
-		TransactionsRoot: hexutil.Encode(payload.TransactionsRoot),
-	}, nil
-}
-
-func (e *ExecutionPayloadHeader) ToConsensus() (*enginev1.ExecutionPayloadHeader, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayloadHeader")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockHash")
-	}
-	payloadTxsRoot, err := bytesutil.DecodeHexWithLength(e.TransactionsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.TransactionsRoot")
-	}
-
-	return &enginev1.ExecutionPayloadHeader{
-		ParentHash:       payloadParentHash,
-		FeeRecipient:     payloadFeeRecipient,
-		StateRoot:        payloadStateRoot,
-		ReceiptsRoot:     payloadReceiptsRoot,
-		LogsBloom:        payloadLogsBloom,
-		PrevRandao:       payloadPrevRandao,
-		BlockNumber:      payloadBlockNumber,
-		GasLimit:         payloadGasLimit,
-		GasUsed:          payloadGasUsed,
-		Timestamp:        payloadTimestamp,
-		ExtraData:        payloadExtraData,
-		BaseFeePerGas:    payloadBaseFeePerGas,
-		BlockHash:        payloadBlockHash,
-		TransactionsRoot: payloadTxsRoot,
-	}, nil
-}
-
-// ----------------------------------------------------------------------------
-// Capella
-// ----------------------------------------------------------------------------
-
-func ExecutionPayloadCapellaFromConsensus(payload *enginev1.ExecutionPayloadCapella) (*ExecutionPayloadCapella, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-	transactions := make([]string, len(payload.Transactions))
-	for i, tx := range payload.Transactions {
-		transactions[i] = hexutil.Encode(tx)
-	}
-
-	return &ExecutionPayloadCapella{
-		ParentHash:    hexutil.Encode(payload.ParentHash),
-		FeeRecipient:  hexutil.Encode(payload.FeeRecipient),
-		StateRoot:     hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:  hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:     hexutil.Encode(payload.LogsBloom),
-		PrevRandao:    hexutil.Encode(payload.PrevRandao),
-		BlockNumber:   fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:      fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:       fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:     fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:     hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas: baseFeePerGas,
-		BlockHash:     hexutil.Encode(payload.BlockHash),
-		Transactions:  transactions,
-		Withdrawals:   WithdrawalsFromConsensus(payload.Withdrawals),
-	}, nil
-}
-
-func (e *ExecutionPayloadCapella) ToConsensus() (*enginev1.ExecutionPayloadCapella, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayload")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockHash")
-	}
-	err = slice.VerifyMaxLength(e.Transactions, fieldparams.MaxTxsPerPayloadLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Transactions")
-	}
-	payloadTxs := make([][]byte, len(e.Transactions))
-	for i, tx := range e.Transactions {
-		payloadTxs[i], err = bytesutil.DecodeHexWithMaxLength(tx, fieldparams.MaxBytesPerTxLength)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Transactions[%d]", i))
-		}
-	}
-	err = slice.VerifyMaxLength(e.Withdrawals, fieldparams.MaxWithdrawalsPerPayload)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Withdrawals")
-	}
-	withdrawals := make([]*enginev1.Withdrawal, len(e.Withdrawals))
-	for i, w := range e.Withdrawals {
-		withdrawalIndex, err := strconv.ParseUint(w.WithdrawalIndex, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].WithdrawalIndex", i))
-		}
-		validatorIndex, err := strconv.ParseUint(w.ValidatorIndex, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].ValidatorIndex", i))
-		}
-		address, err := bytesutil.DecodeHexWithLength(w.ExecutionAddress, common.AddressLength)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].ExecutionAddress", i))
-		}
-		amount, err := strconv.ParseUint(w.Amount, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].Amount", i))
-		}
-		withdrawals[i] = &enginev1.Withdrawal{
-			Index:          withdrawalIndex,
-			ValidatorIndex: primitives.ValidatorIndex(validatorIndex),
-			Address:        address,
-			Amount:         amount,
-		}
-	}
-	return &enginev1.ExecutionPayloadCapella{
-		ParentHash:    payloadParentHash,
-		FeeRecipient:  payloadFeeRecipient,
-		StateRoot:     payloadStateRoot,
-		ReceiptsRoot:  payloadReceiptsRoot,
-		LogsBloom:     payloadLogsBloom,
-		PrevRandao:    payloadPrevRandao,
-		BlockNumber:   payloadBlockNumber,
-		GasLimit:      payloadGasLimit,
-		GasUsed:       payloadGasUsed,
-		Timestamp:     payloadTimestamp,
-		ExtraData:     payloadExtraData,
-		BaseFeePerGas: payloadBaseFeePerGas,
-		BlockHash:     payloadBlockHash,
-		Transactions:  payloadTxs,
-		Withdrawals:   withdrawals,
-	}, nil
-}
-
-func ExecutionPayloadHeaderCapellaFromConsensus(payload *enginev1.ExecutionPayloadHeaderCapella) (*ExecutionPayloadHeaderCapella, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-
-	return &ExecutionPayloadHeaderCapella{
-		ParentHash:       hexutil.Encode(payload.ParentHash),
-		FeeRecipient:     hexutil.Encode(payload.FeeRecipient),
-		StateRoot:        hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:     hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:        hexutil.Encode(payload.LogsBloom),
-		PrevRandao:       hexutil.Encode(payload.PrevRandao),
-		BlockNumber:      fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:         fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:          fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:        fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:        hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas:    baseFeePerGas,
-		BlockHash:        hexutil.Encode(payload.BlockHash),
-		TransactionsRoot: hexutil.Encode(payload.TransactionsRoot),
-		WithdrawalsRoot:  hexutil.Encode(payload.WithdrawalsRoot),
-	}, nil
-}
-
-func (e *ExecutionPayloadHeaderCapella) ToConsensus() (*enginev1.ExecutionPayloadHeaderCapella, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayloadHeader")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithMaxLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockHash")
-	}
-	payloadTxsRoot, err := bytesutil.DecodeHexWithMaxLength(e.TransactionsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.TransactionsRoot")
-	}
-	payloadWithdrawalsRoot, err := bytesutil.DecodeHexWithMaxLength(e.WithdrawalsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.WithdrawalsRoot")
-	}
-	return &enginev1.ExecutionPayloadHeaderCapella{
-		ParentHash:       payloadParentHash,
-		FeeRecipient:     payloadFeeRecipient,
-		StateRoot:        payloadStateRoot,
-		ReceiptsRoot:     payloadReceiptsRoot,
-		LogsBloom:        payloadLogsBloom,
-		PrevRandao:       payloadPrevRandao,
-		BlockNumber:      payloadBlockNumber,
-		GasLimit:         payloadGasLimit,
-		GasUsed:          payloadGasUsed,
-		Timestamp:        payloadTimestamp,
-		ExtraData:        payloadExtraData,
-		BaseFeePerGas:    payloadBaseFeePerGas,
-		BlockHash:        payloadBlockHash,
-		TransactionsRoot: payloadTxsRoot,
-		WithdrawalsRoot:  payloadWithdrawalsRoot,
-	}, nil
-}
-
-// ----------------------------------------------------------------------------
-// Deneb
-// ----------------------------------------------------------------------------
-
-func ExecutionPayloadDenebFromConsensus(payload *enginev1.ExecutionPayloadDeneb) (*ExecutionPayloadDeneb, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-	transactions := make([]string, len(payload.Transactions))
-	for i, tx := range payload.Transactions {
-		transactions[i] = hexutil.Encode(tx)
-	}
-
-	return &ExecutionPayloadDeneb{
-		ParentHash:    hexutil.Encode(payload.ParentHash),
-		FeeRecipient:  hexutil.Encode(payload.FeeRecipient),
-		StateRoot:     hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:  hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:     hexutil.Encode(payload.LogsBloom),
-		PrevRandao:    hexutil.Encode(payload.PrevRandao),
-		BlockNumber:   fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:      fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:       fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:     fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:     hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas: baseFeePerGas,
-		BlockHash:     hexutil.Encode(payload.BlockHash),
-		Transactions:  transactions,
-		Withdrawals:   WithdrawalsFromConsensus(payload.Withdrawals),
-		BlobGasUsed:   fmt.Sprintf("%d", payload.BlobGasUsed),
-		ExcessBlobGas: fmt.Sprintf("%d", payload.ExcessBlobGas),
-	}, nil
-}
-
-func (e *ExecutionPayloadDeneb) ToConsensus() (*enginev1.ExecutionPayloadDeneb, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayload")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlockHash")
-	}
-	err = slice.VerifyMaxLength(e.Transactions, fieldparams.MaxTxsPerPayloadLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Transactions")
-	}
-	txs := make([][]byte, len(e.Transactions))
-	for i, tx := range e.Transactions {
-		txs[i], err = bytesutil.DecodeHexWithMaxLength(tx, fieldparams.MaxBytesPerTxLength)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Transactions[%d]", i))
-		}
-	}
-	err = slice.VerifyMaxLength(e.Withdrawals, fieldparams.MaxWithdrawalsPerPayload)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.Withdrawals")
-	}
-	withdrawals := make([]*enginev1.Withdrawal, len(e.Withdrawals))
-	for i, w := range e.Withdrawals {
-		withdrawalIndex, err := strconv.ParseUint(w.WithdrawalIndex, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].WithdrawalIndex", i))
-		}
-		validatorIndex, err := strconv.ParseUint(w.ValidatorIndex, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].ValidatorIndex", i))
-		}
-		address, err := bytesutil.DecodeHexWithLength(w.ExecutionAddress, common.AddressLength)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].ExecutionAddress", i))
-		}
-		amount, err := strconv.ParseUint(w.Amount, 10, 64)
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionPayload.Withdrawals[%d].Amount", i))
-		}
-		withdrawals[i] = &enginev1.Withdrawal{
-			Index:          withdrawalIndex,
-			ValidatorIndex: primitives.ValidatorIndex(validatorIndex),
-			Address:        address,
-			Amount:         amount,
-		}
-	}
-
-	payloadBlobGasUsed, err := strconv.ParseUint(e.BlobGasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlobGasUsed")
-	}
-	payloadExcessBlobGas, err := strconv.ParseUint(e.ExcessBlobGas, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ExcessBlobGas")
-	}
-	return &enginev1.ExecutionPayloadDeneb{
-		ParentHash:    payloadParentHash,
-		FeeRecipient:  payloadFeeRecipient,
-		StateRoot:     payloadStateRoot,
-		ReceiptsRoot:  payloadReceiptsRoot,
-		LogsBloom:     payloadLogsBloom,
-		PrevRandao:    payloadPrevRandao,
-		BlockNumber:   payloadBlockNumber,
-		GasLimit:      payloadGasLimit,
-		GasUsed:       payloadGasUsed,
-		Timestamp:     payloadTimestamp,
-		ExtraData:     payloadExtraData,
-		BaseFeePerGas: payloadBaseFeePerGas,
-		BlockHash:     payloadBlockHash,
-		Transactions:  txs,
-		Withdrawals:   withdrawals,
-		BlobGasUsed:   payloadBlobGasUsed,
-		ExcessBlobGas: payloadExcessBlobGas,
-	}, nil
-}
-
-func ExecutionPayloadHeaderDenebFromConsensus(payload *enginev1.ExecutionPayloadHeaderDeneb) (*ExecutionPayloadHeaderDeneb, error) {
-	baseFeePerGas, err := sszBytesToUint256String(payload.BaseFeePerGas)
-	if err != nil {
-		return nil, err
-	}
-
-	return &ExecutionPayloadHeaderDeneb{
-		ParentHash:       hexutil.Encode(payload.ParentHash),
-		FeeRecipient:     hexutil.Encode(payload.FeeRecipient),
-		StateRoot:        hexutil.Encode(payload.StateRoot),
-		ReceiptsRoot:     hexutil.Encode(payload.ReceiptsRoot),
-		LogsBloom:        hexutil.Encode(payload.LogsBloom),
-		PrevRandao:       hexutil.Encode(payload.PrevRandao),
-		BlockNumber:      fmt.Sprintf("%d", payload.BlockNumber),
-		GasLimit:         fmt.Sprintf("%d", payload.GasLimit),
-		GasUsed:          fmt.Sprintf("%d", payload.GasUsed),
-		Timestamp:        fmt.Sprintf("%d", payload.Timestamp),
-		ExtraData:        hexutil.Encode(payload.ExtraData),
-		BaseFeePerGas:    baseFeePerGas,
-		BlockHash:        hexutil.Encode(payload.BlockHash),
-		TransactionsRoot: hexutil.Encode(payload.TransactionsRoot),
-		WithdrawalsRoot:  hexutil.Encode(payload.WithdrawalsRoot),
-		BlobGasUsed:      fmt.Sprintf("%d", payload.BlobGasUsed),
-		ExcessBlobGas:    fmt.Sprintf("%d", payload.ExcessBlobGas),
-	}, nil
-}
-
-func (e *ExecutionPayloadHeaderDeneb) ToConsensus() (*enginev1.ExecutionPayloadHeaderDeneb, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionPayloadHeader")
-	}
-	payloadParentHash, err := bytesutil.DecodeHexWithLength(e.ParentHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ParentHash")
-	}
-	payloadFeeRecipient, err := bytesutil.DecodeHexWithLength(e.FeeRecipient, fieldparams.FeeRecipientLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.FeeRecipient")
-	}
-	payloadStateRoot, err := bytesutil.DecodeHexWithLength(e.StateRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.StateRoot")
-	}
-	payloadReceiptsRoot, err := bytesutil.DecodeHexWithLength(e.ReceiptsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ReceiptsRoot")
-	}
-	payloadLogsBloom, err := bytesutil.DecodeHexWithLength(e.LogsBloom, fieldparams.LogsBloomLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.LogsBloom")
-	}
-	payloadPrevRandao, err := bytesutil.DecodeHexWithLength(e.PrevRandao, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.PrevRandao")
-	}
-	payloadBlockNumber, err := strconv.ParseUint(e.BlockNumber, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockNumber")
-	}
-	payloadGasLimit, err := strconv.ParseUint(e.GasLimit, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasLimit")
-	}
-	payloadGasUsed, err := strconv.ParseUint(e.GasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.GasUsed")
-	}
-	payloadTimestamp, err := strconv.ParseUint(e.Timestamp, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.Timestamp")
-	}
-	payloadExtraData, err := bytesutil.DecodeHexWithMaxLength(e.ExtraData, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.ExtraData")
-	}
-	payloadBaseFeePerGas, err := bytesutil.Uint256ToSSZBytes(e.BaseFeePerGas)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BaseFeePerGas")
-	}
-	payloadBlockHash, err := bytesutil.DecodeHexWithLength(e.BlockHash, common.HashLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.BlockHash")
-	}
-	payloadTxsRoot, err := bytesutil.DecodeHexWithLength(e.TransactionsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.TransactionsRoot")
-	}
-	payloadWithdrawalsRoot, err := bytesutil.DecodeHexWithLength(e.WithdrawalsRoot, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayloadHeader.WithdrawalsRoot")
-	}
-	payloadBlobGasUsed, err := strconv.ParseUint(e.BlobGasUsed, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.BlobGasUsed")
-	}
-	payloadExcessBlobGas, err := strconv.ParseUint(e.ExcessBlobGas, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ExecutionPayload.ExcessBlobGas")
-	}
-	return &enginev1.ExecutionPayloadHeaderDeneb{
-		ParentHash:       payloadParentHash,
-		FeeRecipient:     payloadFeeRecipient,
-		StateRoot:        payloadStateRoot,
-		ReceiptsRoot:     payloadReceiptsRoot,
-		LogsBloom:        payloadLogsBloom,
-		PrevRandao:       payloadPrevRandao,
-		BlockNumber:      payloadBlockNumber,
-		GasLimit:         payloadGasLimit,
-		GasUsed:          payloadGasUsed,
-		Timestamp:        payloadTimestamp,
-		ExtraData:        payloadExtraData,
-		BaseFeePerGas:    payloadBaseFeePerGas,
-		BlockHash:        payloadBlockHash,
-		TransactionsRoot: payloadTxsRoot,
-		WithdrawalsRoot:  payloadWithdrawalsRoot,
-		BlobGasUsed:      payloadBlobGasUsed,
-		ExcessBlobGas:    payloadExcessBlobGas,
-	}, nil
-}
-
-// ----------------------------------------------------------------------------
-// Electra
-// ----------------------------------------------------------------------------
-
-var (
-	ExecutionPayloadElectraFromConsensus       = ExecutionPayloadDenebFromConsensus
-	ExecutionPayloadHeaderElectraFromConsensus = ExecutionPayloadHeaderDenebFromConsensus
-)
-
-func WithdrawalRequestsFromConsensus(ws []*enginev1.WithdrawalRequest) []*WithdrawalRequest {
-	result := make([]*WithdrawalRequest, len(ws))
-	for i, w := range ws {
-		result[i] = WithdrawalRequestFromConsensus(w)
-	}
-	return result
-}
-
-func WithdrawalRequestFromConsensus(w *enginev1.WithdrawalRequest) *WithdrawalRequest {
-	return &WithdrawalRequest{
-		SourceAddress:   hexutil.Encode(w.SourceAddress),
-		ValidatorPubkey: hexutil.Encode(w.ValidatorPubkey),
-		Amount:          fmt.Sprintf("%d", w.Amount),
-	}
-}
-
-func (w *WithdrawalRequest) ToConsensus() (*enginev1.WithdrawalRequest, error) {
-	if w == nil {
-		return nil, server.NewDecodeError(errNilValue, "WithdrawalRequest")
-	}
-	src, err := bytesutil.DecodeHexWithLength(w.SourceAddress, common.AddressLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "SourceAddress")
-	}
-	pubkey, err := bytesutil.DecodeHexWithLength(w.ValidatorPubkey, fieldparams.BLSPubkeyLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "ValidatorPubkey")
-	}
-	amount, err := strconv.ParseUint(w.Amount, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Amount")
-	}
-	return &enginev1.WithdrawalRequest{
-		SourceAddress:   src,
-		ValidatorPubkey: pubkey,
-		Amount:          amount,
-	}, nil
-}
-
-func ConsolidationRequestsFromConsensus(cs []*enginev1.ConsolidationRequest) []*ConsolidationRequest {
-	result := make([]*ConsolidationRequest, len(cs))
-	for i, c := range cs {
-		result[i] = ConsolidationRequestFromConsensus(c)
-	}
-	return result
-}
-
-func ConsolidationRequestFromConsensus(c *enginev1.ConsolidationRequest) *ConsolidationRequest {
-	return &ConsolidationRequest{
-		SourceAddress: hexutil.Encode(c.SourceAddress),
-		SourcePubkey:  hexutil.Encode(c.SourcePubkey),
-		TargetPubkey:  hexutil.Encode(c.TargetPubkey),
-	}
-}
-
-func (c *ConsolidationRequest) ToConsensus() (*enginev1.ConsolidationRequest, error) {
-	if c == nil {
-		return nil, server.NewDecodeError(errNilValue, "ConsolidationRequest")
-	}
-	srcAddress, err := bytesutil.DecodeHexWithLength(c.SourceAddress, common.AddressLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "SourceAddress")
-	}
-	srcPubkey, err := bytesutil.DecodeHexWithLength(c.SourcePubkey, fieldparams.BLSPubkeyLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "SourcePubkey")
-	}
-	targetPubkey, err := bytesutil.DecodeHexWithLength(c.TargetPubkey, fieldparams.BLSPubkeyLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "TargetPubkey")
-	}
-	return &enginev1.ConsolidationRequest{
-		SourceAddress: srcAddress,
-		SourcePubkey:  srcPubkey,
-		TargetPubkey:  targetPubkey,
-	}, nil
-}
-
-func DepositRequestsFromConsensus(ds []*enginev1.DepositRequest) []*DepositRequest {
-	result := make([]*DepositRequest, len(ds))
-	for i, d := range ds {
-		result[i] = DepositRequestFromConsensus(d)
-	}
-	return result
-}
-
-func DepositRequestFromConsensus(d *enginev1.DepositRequest) *DepositRequest {
-	return &DepositRequest{
-		Pubkey:                hexutil.Encode(d.Pubkey),
-		WithdrawalCredentials: hexutil.Encode(d.WithdrawalCredentials),
-		Amount:                fmt.Sprintf("%d", d.Amount),
-		Signature:             hexutil.Encode(d.Signature),
-		Index:                 fmt.Sprintf("%d", d.Index),
-	}
-}
-
-func (d *DepositRequest) ToConsensus() (*enginev1.DepositRequest, error) {
-	if d == nil {
-		return nil, server.NewDecodeError(errNilValue, "DepositRequest")
-	}
-	pubkey, err := bytesutil.DecodeHexWithLength(d.Pubkey, fieldparams.BLSPubkeyLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Pubkey")
-	}
-	withdrawalCredentials, err := bytesutil.DecodeHexWithLength(d.WithdrawalCredentials, fieldparams.RootLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "WithdrawalCredentials")
-	}
-	amount, err := strconv.ParseUint(d.Amount, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Amount")
-	}
-	sig, err := bytesutil.DecodeHexWithLength(d.Signature, fieldparams.BLSSignatureLength)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Signature")
-	}
-	index, err := strconv.ParseUint(d.Index, 10, 64)
-	if err != nil {
-		return nil, server.NewDecodeError(err, "Index")
-	}
-	return &enginev1.DepositRequest{
-		Pubkey:                pubkey,
-		WithdrawalCredentials: withdrawalCredentials,
-		Amount:                amount,
-		Signature:             sig,
-		Index:                 index,
-	}, nil
-}
-
-func ExecutionRequestsFromConsensus(er *enginev1.ExecutionRequests) *ExecutionRequests {
-	return &ExecutionRequests{
-		Deposits:       DepositRequestsFromConsensus(er.Deposits),
-		Withdrawals:    WithdrawalRequestsFromConsensus(er.Withdrawals),
-		Consolidations: ConsolidationRequestsFromConsensus(er.Consolidations),
-	}
-}
-
-func (e *ExecutionRequests) ToConsensus() (*enginev1.ExecutionRequests, error) {
-	if e == nil {
-		return nil, server.NewDecodeError(errNilValue, "ExecutionRequests")
-	}
-	var err error
-	if err = slice.VerifyMaxLength(e.Deposits, params.BeaconConfig().MaxDepositRequestsPerPayload); err != nil {
-		return nil, err
-	}
-	depositRequests := make([]*enginev1.DepositRequest, len(e.Deposits))
-	for i, d := range e.Deposits {
-		depositRequests[i], err = d.ToConsensus()
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionRequests.Deposits[%d]", i))
-		}
-	}
-
-	if err = slice.VerifyMaxLength(e.Withdrawals, params.BeaconConfig().MaxWithdrawalRequestsPerPayload); err != nil {
-		return nil, err
-	}
-	withdrawalRequests := make([]*enginev1.WithdrawalRequest, len(e.Withdrawals))
-	for i, w := range e.Withdrawals {
-		withdrawalRequests[i], err = w.ToConsensus()
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionRequests.Withdrawals[%d]", i))
-		}
-	}
-
-	if err = slice.VerifyMaxLength(e.Consolidations, params.BeaconConfig().MaxConsolidationsRequestsPerPayload); err != nil {
-		return nil, err
-	}
-	consolidationRequests := make([]*enginev1.ConsolidationRequest, len(e.Consolidations))
-	for i, c := range e.Consolidations {
-		consolidationRequests[i], err = c.ToConsensus()
-		if err != nil {
-			return nil, server.NewDecodeError(err, fmt.Sprintf("ExecutionRequests.Consolidations[%d]", i))
-		}
-	}
-	return &enginev1.ExecutionRequests{
-		Deposits:       depositRequests,
-		Withdrawals:    withdrawalRequests,
-		Consolidations: consolidationRequests,
-	}, nil
-}
-
-// ----------------------------------------------------------------------------
-// Fulu
-// ----------------------------------------------------------------------------
-
-var (
-	ExecutionPayloadFuluFromConsensus       = ExecutionPayloadDenebFromConsensus
-	ExecutionPayloadHeaderFuluFromConsensus = ExecutionPayloadHeaderDenebFromConsensus
-	BeaconBlockFuluFromConsensus            = BeaconBlockElectraFromConsensus
-)

api/server/structs/conversions_block_execution_test.go

@@ -1,563 +0,0 @@
-package structs
-
-import (
-	"fmt"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/common/hexutil"
-	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
-	"github.com/prysmaticlabs/prysm/v5/testing/require"
-)
-
-func fillByteSlice(sliceLength int, value byte) []byte {
-	bytes := make([]byte, sliceLength)
-
-	for index := range bytes {
-		bytes[index] = value
-	}
-
-	return bytes
-}
-
-// TestExecutionPayloadFromConsensus_HappyPath checks the
-// ExecutionPayloadFromConsensus function under normal conditions.
-func TestExecutionPayloadFromConsensus_HappyPath(t *testing.T) {
-	consensusPayload := &enginev1.ExecutionPayload{
-		ParentHash:    fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:  fillByteSlice(20, 0xbb),
-		StateRoot:     fillByteSlice(32, 0xcc),
-		ReceiptsRoot:  fillByteSlice(32, 0xdd),
-		LogsBloom:     fillByteSlice(256, 0xee),
-		PrevRandao:    fillByteSlice(32, 0xff),
-		BlockNumber:   12345,
-		GasLimit:      15000000,
-		GasUsed:       8000000,
-		Timestamp:     1680000000,
-		ExtraData:     fillByteSlice(8, 0x11),
-		BaseFeePerGas: fillByteSlice(32, 0x01),
-		BlockHash:     fillByteSlice(common.HashLength, 0x22),
-		Transactions: [][]byte{
-			fillByteSlice(10, 0x33),
-			fillByteSlice(10, 0x44),
-		},
-	}
-
-	result, err := ExecutionPayloadFromConsensus(consensusPayload)
-	require.NoError(t, err)
-	require.NotNil(t, result)
-	require.Equal(t, hexutil.Encode(consensusPayload.ParentHash), result.ParentHash)
-	require.Equal(t, hexutil.Encode(consensusPayload.FeeRecipient), result.FeeRecipient)
-	require.Equal(t, hexutil.Encode(consensusPayload.StateRoot), result.StateRoot)
-	require.Equal(t, hexutil.Encode(consensusPayload.ReceiptsRoot), result.ReceiptsRoot)
-	require.Equal(t, fmt.Sprintf("%d", consensusPayload.BlockNumber), result.BlockNumber)
-}
-
-// TestExecutionPayload_ToConsensus_HappyPath checks the
-// (*ExecutionPayload).ToConsensus function under normal conditions.
-func TestExecutionPayload_ToConsensus_HappyPath(t *testing.T) {
-	payload := &ExecutionPayload{
-		ParentHash:    hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:  hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:     hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:  hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:     hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:    hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:   "12345",
-		GasLimit:      "15000000",
-		GasUsed:       "8000000",
-		Timestamp:     "1680000000",
-		ExtraData:     "0x11111111",
-		BaseFeePerGas: "1234",
-		BlockHash:     hexutil.Encode(fillByteSlice(common.HashLength, 0x22)),
-		Transactions: []string{
-			hexutil.Encode(fillByteSlice(10, 0x33)),
-			hexutil.Encode(fillByteSlice(10, 0x44)),
-		},
-	}
-
-	result, err := payload.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, result.ParentHash, fillByteSlice(common.HashLength, 0xaa))
-	require.DeepEqual(t, result.FeeRecipient, fillByteSlice(20, 0xbb))
-	require.DeepEqual(t, result.StateRoot, fillByteSlice(32, 0xcc))
-}
-
-// TestExecutionPayloadHeaderFromConsensus_HappyPath checks the
-// ExecutionPayloadHeaderFromConsensus function under normal conditions.
-func TestExecutionPayloadHeaderFromConsensus_HappyPath(t *testing.T) {
-	consensusHeader := &enginev1.ExecutionPayloadHeader{
-		ParentHash:       fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:     fillByteSlice(20, 0xbb),
-		StateRoot:        fillByteSlice(32, 0xcc),
-		ReceiptsRoot:     fillByteSlice(32, 0xdd),
-		LogsBloom:        fillByteSlice(256, 0xee),
-		PrevRandao:       fillByteSlice(32, 0xff),
-		BlockNumber:      9999,
-		GasLimit:         5000000,
-		GasUsed:          2500000,
-		Timestamp:        1111111111,
-		ExtraData:        fillByteSlice(4, 0x12),
-		BaseFeePerGas:    fillByteSlice(32, 0x34),
-		BlockHash:        fillByteSlice(common.HashLength, 0x56),
-		TransactionsRoot: fillByteSlice(32, 0x78),
-	}
-
-	result, err := ExecutionPayloadHeaderFromConsensus(consensusHeader)
-	require.NoError(t, err)
-	require.NotNil(t, result)
-	require.Equal(t, hexutil.Encode(consensusHeader.ParentHash), result.ParentHash)
-	require.Equal(t, fmt.Sprintf("%d", consensusHeader.BlockNumber), result.BlockNumber)
-}
-
-// TestExecutionPayloadHeader_ToConsensus_HappyPath checks the
-// (*ExecutionPayloadHeader).ToConsensus function under normal conditions.
-func TestExecutionPayloadHeader_ToConsensus_HappyPath(t *testing.T) {
-	header := &ExecutionPayloadHeader{
-		ParentHash:       hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:     hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:        hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:     hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:        hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:       hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:      "9999",
-		GasLimit:         "5000000",
-		GasUsed:          "2500000",
-		Timestamp:        "1111111111",
-		ExtraData:        "0x1234abcd",
-		BaseFeePerGas:    "1234",
-		BlockHash:        hexutil.Encode(fillByteSlice(common.HashLength, 0x56)),
-		TransactionsRoot: hexutil.Encode(fillByteSlice(32, 0x78)),
-	}
-
-	result, err := header.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, hexutil.Encode(result.ParentHash), header.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(result.FeeRecipient), header.FeeRecipient)
-	require.DeepEqual(t, hexutil.Encode(result.StateRoot), header.StateRoot)
-}
-
-// TestExecutionPayloadCapellaFromConsensus_HappyPath checks the
-// ExecutionPayloadCapellaFromConsensus function under normal conditions.
-func TestExecutionPayloadCapellaFromConsensus_HappyPath(t *testing.T) {
-	capellaPayload := &enginev1.ExecutionPayloadCapella{
-		ParentHash:    fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:  fillByteSlice(20, 0xbb),
-		StateRoot:     fillByteSlice(32, 0xcc),
-		ReceiptsRoot:  fillByteSlice(32, 0xdd),
-		LogsBloom:     fillByteSlice(256, 0xee),
-		PrevRandao:    fillByteSlice(32, 0xff),
-		BlockNumber:   123,
-		GasLimit:      9876543,
-		GasUsed:       1234567,
-		Timestamp:     5555555,
-		ExtraData:     fillByteSlice(6, 0x11),
-		BaseFeePerGas: fillByteSlice(32, 0x22),
-		BlockHash:     fillByteSlice(common.HashLength, 0x33),
-		Transactions: [][]byte{
-			fillByteSlice(5, 0x44),
-		},
-		Withdrawals: []*enginev1.Withdrawal{
-			{
-				Index:          1,
-				ValidatorIndex: 2,
-				Address:        fillByteSlice(20, 0xaa),
-				Amount:         100,
-			},
-		},
-	}
-
-	result, err := ExecutionPayloadCapellaFromConsensus(capellaPayload)
-	require.NoError(t, err)
-	require.NotNil(t, result)
-	require.Equal(t, hexutil.Encode(capellaPayload.ParentHash), result.ParentHash)
-	require.Equal(t, len(capellaPayload.Transactions), len(result.Transactions))
-	require.Equal(t, len(capellaPayload.Withdrawals), len(result.Withdrawals))
-}
-
-// TestExecutionPayloadCapella_ToConsensus_HappyPath checks the
-// (*ExecutionPayloadCapella).ToConsensus function under normal conditions.
-func TestExecutionPayloadCapella_ToConsensus_HappyPath(t *testing.T) {
-	capella := &ExecutionPayloadCapella{
-		ParentHash:    hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:  hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:     hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:  hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:     hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:    hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:   "123",
-		GasLimit:      "9876543",
-		GasUsed:       "1234567",
-		Timestamp:     "5555555",
-		ExtraData:     hexutil.Encode(fillByteSlice(6, 0x11)),
-		BaseFeePerGas: "1234",
-		BlockHash:     hexutil.Encode(fillByteSlice(common.HashLength, 0x33)),
-		Transactions: []string{
-			hexutil.Encode(fillByteSlice(5, 0x44)),
-		},
-		Withdrawals: []*Withdrawal{
-			{
-				WithdrawalIndex:  "1",
-				ValidatorIndex:   "2",
-				ExecutionAddress: hexutil.Encode(fillByteSlice(20, 0xaa)),
-				Amount:           "100",
-			},
-		},
-	}
-
-	result, err := capella.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, hexutil.Encode(result.ParentHash), capella.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(result.FeeRecipient), capella.FeeRecipient)
-	require.DeepEqual(t, hexutil.Encode(result.StateRoot), capella.StateRoot)
-}
-
-// TestExecutionPayloadDenebFromConsensus_HappyPath checks the
-// ExecutionPayloadDenebFromConsensus function under normal conditions.
-func TestExecutionPayloadDenebFromConsensus_HappyPath(t *testing.T) {
-	denebPayload := &enginev1.ExecutionPayloadDeneb{
-		ParentHash:    fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:  fillByteSlice(20, 0xbb),
-		StateRoot:     fillByteSlice(32, 0xcc),
-		ReceiptsRoot:  fillByteSlice(32, 0xdd),
-		LogsBloom:     fillByteSlice(256, 0xee),
-		PrevRandao:    fillByteSlice(32, 0xff),
-		BlockNumber:   999,
-		GasLimit:      2222222,
-		GasUsed:       1111111,
-		Timestamp:     666666,
-		ExtraData:     fillByteSlice(6, 0x11),
-		BaseFeePerGas: fillByteSlice(32, 0x22),
-		BlockHash:     fillByteSlice(common.HashLength, 0x33),
-		Transactions: [][]byte{
-			fillByteSlice(5, 0x44),
-		},
-		Withdrawals: []*enginev1.Withdrawal{
-			{
-				Index:          1,
-				ValidatorIndex: 2,
-				Address:        fillByteSlice(20, 0xaa),
-				Amount:         100,
-			},
-		},
-		BlobGasUsed:   1234,
-		ExcessBlobGas: 5678,
-	}
-
-	result, err := ExecutionPayloadDenebFromConsensus(denebPayload)
-	require.NoError(t, err)
-	require.Equal(t, hexutil.Encode(denebPayload.ParentHash), result.ParentHash)
-	require.Equal(t, len(denebPayload.Transactions), len(result.Transactions))
-	require.Equal(t, len(denebPayload.Withdrawals), len(result.Withdrawals))
-	require.Equal(t, "1234", result.BlobGasUsed)
-	require.Equal(t, fmt.Sprintf("%d", denebPayload.BlockNumber), result.BlockNumber)
-}
-
-// TestExecutionPayloadDeneb_ToConsensus_HappyPath checks the
-// (*ExecutionPayloadDeneb).ToConsensus function under normal conditions.
-func TestExecutionPayloadDeneb_ToConsensus_HappyPath(t *testing.T) {
-	deneb := &ExecutionPayloadDeneb{
-		ParentHash:    hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:  hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:     hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:  hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:     hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:    hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:   "999",
-		GasLimit:      "2222222",
-		GasUsed:       "1111111",
-		Timestamp:     "666666",
-		ExtraData:     hexutil.Encode(fillByteSlice(6, 0x11)),
-		BaseFeePerGas: "1234",
-		BlockHash:     hexutil.Encode(fillByteSlice(common.HashLength, 0x33)),
-		Transactions: []string{
-			hexutil.Encode(fillByteSlice(5, 0x44)),
-		},
-		Withdrawals: []*Withdrawal{
-			{
-				WithdrawalIndex:  "1",
-				ValidatorIndex:   "2",
-				ExecutionAddress: hexutil.Encode(fillByteSlice(20, 0xaa)),
-				Amount:           "100",
-			},
-		},
-		BlobGasUsed:   "1234",
-		ExcessBlobGas: "5678",
-	}
-
-	result, err := deneb.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, hexutil.Encode(result.ParentHash), deneb.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(result.FeeRecipient), deneb.FeeRecipient)
-	require.Equal(t, result.BlockNumber, uint64(999))
-}
-
-func TestExecutionPayloadHeaderCapellaFromConsensus_HappyPath(t *testing.T) {
-	capellaHeader := &enginev1.ExecutionPayloadHeaderCapella{
-		ParentHash:       fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:     fillByteSlice(20, 0xbb),
-		StateRoot:        fillByteSlice(32, 0xcc),
-		ReceiptsRoot:     fillByteSlice(32, 0xdd),
-		LogsBloom:        fillByteSlice(256, 0xee),
-		PrevRandao:       fillByteSlice(32, 0xff),
-		BlockNumber:      555,
-		GasLimit:         1111111,
-		GasUsed:          222222,
-		Timestamp:        3333333333,
-		ExtraData:        fillByteSlice(4, 0x12),
-		BaseFeePerGas:    fillByteSlice(32, 0x34),
-		BlockHash:        fillByteSlice(common.HashLength, 0x56),
-		TransactionsRoot: fillByteSlice(32, 0x78),
-		WithdrawalsRoot:  fillByteSlice(32, 0x99),
-	}
-
-	result, err := ExecutionPayloadHeaderCapellaFromConsensus(capellaHeader)
-	require.NoError(t, err)
-	require.Equal(t, hexutil.Encode(capellaHeader.ParentHash), result.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(capellaHeader.WithdrawalsRoot), result.WithdrawalsRoot)
-}
-
-func TestExecutionPayloadHeaderCapella_ToConsensus_HappyPath(t *testing.T) {
-	header := &ExecutionPayloadHeaderCapella{
-		ParentHash:       hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:     hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:        hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:     hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:        hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:       hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:      "555",
-		GasLimit:         "1111111",
-		GasUsed:          "222222",
-		Timestamp:        "3333333333",
-		ExtraData:        "0x1234abcd",
-		BaseFeePerGas:    "1234",
-		BlockHash:        hexutil.Encode(fillByteSlice(common.HashLength, 0x56)),
-		TransactionsRoot: hexutil.Encode(fillByteSlice(32, 0x78)),
-		WithdrawalsRoot:  hexutil.Encode(fillByteSlice(32, 0x99)),
-	}
-
-	result, err := header.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, hexutil.Encode(result.ParentHash), header.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(result.FeeRecipient), header.FeeRecipient)
-	require.DeepEqual(t, hexutil.Encode(result.StateRoot), header.StateRoot)
-	require.DeepEqual(t, hexutil.Encode(result.ReceiptsRoot), header.ReceiptsRoot)
-	require.DeepEqual(t, hexutil.Encode(result.WithdrawalsRoot), header.WithdrawalsRoot)
-}
-
-func TestExecutionPayloadHeaderDenebFromConsensus_HappyPath(t *testing.T) {
-	denebHeader := &enginev1.ExecutionPayloadHeaderDeneb{
-		ParentHash:       fillByteSlice(common.HashLength, 0xaa),
-		FeeRecipient:     fillByteSlice(20, 0xbb),
-		StateRoot:        fillByteSlice(32, 0xcc),
-		ReceiptsRoot:     fillByteSlice(32, 0xdd),
-		LogsBloom:        fillByteSlice(256, 0xee),
-		PrevRandao:       fillByteSlice(32, 0xff),
-		BlockNumber:      999,
-		GasLimit:         5000000,
-		GasUsed:          2500000,
-		Timestamp:        4444444444,
-		ExtraData:        fillByteSlice(4, 0x12),
-		BaseFeePerGas:    fillByteSlice(32, 0x34),
-		BlockHash:        fillByteSlice(common.HashLength, 0x56),
-		TransactionsRoot: fillByteSlice(32, 0x78),
-		WithdrawalsRoot:  fillByteSlice(32, 0x99),
-		BlobGasUsed:      1234,
-		ExcessBlobGas:    5678,
-	}
-
-	result, err := ExecutionPayloadHeaderDenebFromConsensus(denebHeader)
-	require.NoError(t, err)
-	require.Equal(t, hexutil.Encode(denebHeader.ParentHash), result.ParentHash)
-	require.DeepEqual(t, hexutil.Encode(denebHeader.FeeRecipient), result.FeeRecipient)
-	require.DeepEqual(t, hexutil.Encode(denebHeader.StateRoot), result.StateRoot)
-	require.DeepEqual(t, fmt.Sprintf("%d", denebHeader.BlobGasUsed), result.BlobGasUsed)
-}
-
-func TestExecutionPayloadHeaderDeneb_ToConsensus_HappyPath(t *testing.T) {
-	header := &ExecutionPayloadHeaderDeneb{
-		ParentHash:       hexutil.Encode(fillByteSlice(common.HashLength, 0xaa)),
-		FeeRecipient:     hexutil.Encode(fillByteSlice(20, 0xbb)),
-		StateRoot:        hexutil.Encode(fillByteSlice(32, 0xcc)),
-		ReceiptsRoot:     hexutil.Encode(fillByteSlice(32, 0xdd)),
-		LogsBloom:        hexutil.Encode(fillByteSlice(256, 0xee)),
-		PrevRandao:       hexutil.Encode(fillByteSlice(32, 0xff)),
-		BlockNumber:      "999",
-		GasLimit:         "5000000",
-		GasUsed:          "2500000",
-		Timestamp:        "4444444444",
-		ExtraData:        "0x1234abcd",
-		BaseFeePerGas:    "1234",
-		BlockHash:        hexutil.Encode(fillByteSlice(common.HashLength, 0x56)),
-		TransactionsRoot: hexutil.Encode(fillByteSlice(32, 0x78)),
-		WithdrawalsRoot:  hexutil.Encode(fillByteSlice(32, 0x99)),
-		BlobGasUsed:      "1234",
-		ExcessBlobGas:    "5678",
-	}
-
-	result, err := header.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, hexutil.Encode(result.ParentHash), header.ParentHash)
-	require.DeepEqual(t, result.BlobGasUsed, uint64(1234))
-	require.DeepEqual(t, result.ExcessBlobGas, uint64(5678))
-	require.DeepEqual(t, result.BlockNumber, uint64(999))
-}
-
-func TestWithdrawalRequestsFromConsensus_HappyPath(t *testing.T) {
-	consensusRequests := []*enginev1.WithdrawalRequest{
-		{
-			SourceAddress:   fillByteSlice(20, 0xbb),
-			ValidatorPubkey: fillByteSlice(48, 0xbb),
-			Amount:          12345,
-		},
-		{
-			SourceAddress:   fillByteSlice(20, 0xcc),
-			ValidatorPubkey: fillByteSlice(48, 0xcc),
-			Amount:          54321,
-		},
-	}
-
-	result := WithdrawalRequestsFromConsensus(consensusRequests)
-	require.DeepEqual(t, len(result), len(consensusRequests))
-	require.DeepEqual(t, result[0].Amount, fmt.Sprintf("%d", consensusRequests[0].Amount))
-}
-
-func TestWithdrawalRequestFromConsensus_HappyPath(t *testing.T) {
-	req := &enginev1.WithdrawalRequest{
-		SourceAddress:   fillByteSlice(20, 0xbb),
-		ValidatorPubkey: fillByteSlice(48, 0xbb),
-		Amount:          42,
-	}
-	result := WithdrawalRequestFromConsensus(req)
-	require.NotNil(t, result)
-	require.DeepEqual(t, result.SourceAddress, hexutil.Encode(fillByteSlice(20, 0xbb)))
-}
-
-func TestWithdrawalRequest_ToConsensus_HappyPath(t *testing.T) {
-	withdrawalReq := &WithdrawalRequest{
-		SourceAddress:   hexutil.Encode(fillByteSlice(20, 111)),
-		ValidatorPubkey: hexutil.Encode(fillByteSlice(48, 123)),
-		Amount:          "12345",
-	}
-	result, err := withdrawalReq.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, result.Amount, uint64(12345))
-}
-
-func TestConsolidationRequestsFromConsensus_HappyPath(t *testing.T) {
-	consensusRequests := []*enginev1.ConsolidationRequest{
-		{
-			SourceAddress: fillByteSlice(20, 111),
-			SourcePubkey:  fillByteSlice(48, 112),
-			TargetPubkey:  fillByteSlice(48, 113),
-		},
-	}
-	result := ConsolidationRequestsFromConsensus(consensusRequests)
-	require.DeepEqual(t, len(result), len(consensusRequests))
-	require.DeepEqual(t, result[0].SourceAddress, "0x6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f6f")
-}
-
-func TestDepositRequestsFromConsensus_HappyPath(t *testing.T) {
-	ds := []*enginev1.DepositRequest{
-		{
-			Pubkey:                fillByteSlice(48, 0xbb),
-			WithdrawalCredentials: fillByteSlice(32, 0xdd),
-			Amount:                98765,
-			Signature:             fillByteSlice(96, 0xff),
-			Index:                 111,
-		},
-	}
-	result := DepositRequestsFromConsensus(ds)
-	require.DeepEqual(t, len(result), len(ds))
-	require.DeepEqual(t, result[0].Amount, "98765")
-}
-
-func TestDepositRequest_ToConsensus_HappyPath(t *testing.T) {
-	req := &DepositRequest{
-		Pubkey:                hexutil.Encode(fillByteSlice(48, 0xbb)),
-		WithdrawalCredentials: hexutil.Encode(fillByteSlice(32, 0xaa)),
-		Amount:                "123",
-		Signature:             hexutil.Encode(fillByteSlice(96, 0xdd)),
-		Index:                 "456",
-	}
-
-	result, err := req.ToConsensus()
-	require.NoError(t, err)
-	require.DeepEqual(t, result.Amount, uint64(123))
-	require.DeepEqual(t, result.Signature, fillByteSlice(96, 0xdd))
-}
-
-func TestExecutionRequestsFromConsensus_HappyPath(t *testing.T) {
-	er := &enginev1.ExecutionRequests{
-		Deposits: []*enginev1.DepositRequest{
-			{
-				Pubkey:                fillByteSlice(48, 0xba),
-				WithdrawalCredentials: fillByteSlice(32, 0xaa),
-				Amount:                33,
-				Signature:             fillByteSlice(96, 0xff),
-				Index:                 44,
-			},
-		},
-		Withdrawals: []*enginev1.WithdrawalRequest{
-			{
-				SourceAddress:   fillByteSlice(20, 0xaa),
-				ValidatorPubkey: fillByteSlice(48, 0xba),
-				Amount:          555,
-			},
-		},
-		Consolidations: []*enginev1.ConsolidationRequest{
-			{
-				SourceAddress: fillByteSlice(20, 0xdd),
-				SourcePubkey:  fillByteSlice(48, 0xdd),
-				TargetPubkey:  fillByteSlice(48, 0xcc),
-			},
-		},
-	}
-
-	result := ExecutionRequestsFromConsensus(er)
-	require.NotNil(t, result)
-	require.Equal(t, 1, len(result.Deposits))
-	require.Equal(t, "33", result.Deposits[0].Amount)
-	require.Equal(t, 1, len(result.Withdrawals))
-	require.Equal(t, "555", result.Withdrawals[0].Amount)
-	require.Equal(t, 1, len(result.Consolidations))
-	require.Equal(t, "0xcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc", result.Consolidations[0].TargetPubkey)
-}
-
-func TestExecutionRequests_ToConsensus_HappyPath(t *testing.T) {
-	execReq := &ExecutionRequests{
-		Deposits: []*DepositRequest{
-			{
-				Pubkey:                hexutil.Encode(fillByteSlice(48, 0xbb)),
-				WithdrawalCredentials: hexutil.Encode(fillByteSlice(32, 0xaa)),
-				Amount:                "33",
-				Signature:             hexutil.Encode(fillByteSlice(96, 0xff)),
-				Index:                 "44",
-			},
-		},
-		Withdrawals: []*WithdrawalRequest{
-			{
-				SourceAddress:   hexutil.Encode(fillByteSlice(20, 0xdd)),
-				ValidatorPubkey: hexutil.Encode(fillByteSlice(48, 0xbb)),
-				Amount:          "555",
-			},
-		},
-		Consolidations: []*ConsolidationRequest{
-			{
-				SourceAddress: hexutil.Encode(fillByteSlice(20, 0xcc)),
-				SourcePubkey:  hexutil.Encode(fillByteSlice(48, 0xbb)),
-				TargetPubkey:  hexutil.Encode(fillByteSlice(48, 0xcc)),
-			},
-		},
-	}
-
-	result, err := execReq.ToConsensus()
-	require.NoError(t, err)
-
-	require.Equal(t, 1, len(result.Deposits))
-	require.Equal(t, uint64(33), result.Deposits[0].Amount)
-	require.Equal(t, 1, len(result.Withdrawals))
-	require.Equal(t, uint64(555), result.Withdrawals[0].Amount)
-	require.Equal(t, 1, len(result.Consolidations))
-	require.DeepEqual(t, fillByteSlice(48, 0xcc), result.Consolidations[0].TargetPubkey)
-}

api/server/structs/conversions_test.go

@@ -24,96 +24,3 @@ func TestDepositSnapshotFromConsensus(t *testing.T) {
 	require.Equal(t, "0x1234", res.ExecutionBlockHash)
 	require.Equal(t, "67890", res.ExecutionBlockHeight)
 }
-
-func TestSignedBLSToExecutionChange_ToConsensus(t *testing.T) {
-	s := &SignedBLSToExecutionChange{Message: nil, Signature: ""}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestSignedValidatorRegistration_ToConsensus(t *testing.T) {
-	s := &SignedValidatorRegistration{Message: nil, Signature: ""}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestSignedContributionAndProof_ToConsensus(t *testing.T) {
-	s := &SignedContributionAndProof{Message: nil, Signature: ""}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestContributionAndProof_ToConsensus(t *testing.T) {
-	c := &ContributionAndProof{
-		Contribution:    nil,
-		AggregatorIndex: "invalid",
-		SelectionProof:  "",
-	}
-	_, err := c.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestSignedAggregateAttestationAndProof_ToConsensus(t *testing.T) {
-	s := &SignedAggregateAttestationAndProof{Message: nil, Signature: ""}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestAggregateAttestationAndProof_ToConsensus(t *testing.T) {
-	a := &AggregateAttestationAndProof{
-		AggregatorIndex: "1",
-		Aggregate:       nil,
-		SelectionProof:  "",
-	}
-	_, err := a.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestAttestation_ToConsensus(t *testing.T) {
-	a := &Attestation{
-		AggregationBits: "0x10",
-		Data:            nil,
-		Signature:       "",
-	}
-	_, err := a.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestSingleAttestation_ToConsensus(t *testing.T) {
-	s := &SingleAttestation{
-		CommitteeIndex: "1",
-		AttesterIndex:  "1",
-		Data:           nil,
-		Signature:      "",
-	}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestSignedVoluntaryExit_ToConsensus(t *testing.T) {
-	s := &SignedVoluntaryExit{Message: nil, Signature: ""}
-	_, err := s.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestProposerSlashing_ToConsensus(t *testing.T) {
-	p := &ProposerSlashing{SignedHeader1: nil, SignedHeader2: nil}
-	_, err := p.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestAttesterSlashing_ToConsensus(t *testing.T) {
-	a := &AttesterSlashing{Attestation1: nil, Attestation2: nil}
-	_, err := a.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}
-
-func TestIndexedAttestation_ToConsensus(t *testing.T) {
-	a := &IndexedAttestation{
-		AttestingIndices: []string{"1"},
-		Data:             nil,
-		Signature:        "invalid",
-	}
-	_, err := a.ToConsensus()
-	require.ErrorContains(t, errNilValue.Error(), err)
-}

api/server/structs/converstions_block_epbs.go

@@ -0,0 +1,397 @@
+package structs
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/prysmaticlabs/prysm/v5/api/server"
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
+	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+)
+
+// ----------------------------------------------------------------------------
+// Epbs
+// ----------------------------------------------------------------------------
+
+// nolint:gocognit
+func (b *BeaconBlockEpbs) ToConsensus() (*eth.BeaconBlockEpbs, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+	if b.Body == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body")
+	}
+	if b.Body.Eth1Data == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body.Eth1Data")
+	}
+	if b.Body.SyncAggregate == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body.SyncAggregate")
+	}
+	slot, err := strconv.ParseUint(b.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	proposerIndex, err := strconv.ParseUint(b.ProposerIndex, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ProposerIndex")
+	}
+	parentRoot, err := bytesutil.DecodeHexWithLength(b.ParentRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentRoot")
+	}
+	stateRoot, err := bytesutil.DecodeHexWithLength(b.StateRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "StateRoot")
+	}
+	randaoReveal, err := bytesutil.DecodeHexWithLength(b.Body.RandaoReveal, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.RandaoReveal")
+	}
+	depositRoot, err := bytesutil.DecodeHexWithLength(b.Body.Eth1Data.DepositRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Eth1Data.DepositRoot")
+	}
+	depositCount, err := strconv.ParseUint(b.Body.Eth1Data.DepositCount, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Eth1Data.DepositCount")
+	}
+	blockHash, err := bytesutil.DecodeHexWithLength(b.Body.Eth1Data.BlockHash, common.HashLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Eth1Data.BlockHash")
+	}
+	graffiti, err := bytesutil.DecodeHexWithLength(b.Body.Graffiti, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Graffiti")
+	}
+	proposerSlashings, err := ProposerSlashingsToConsensus(b.Body.ProposerSlashings)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.ProposerSlashings")
+	}
+	attesterSlashings, err := AttesterSlashingsElectraToConsensus(b.Body.AttesterSlashings)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.AttesterSlashings")
+	}
+	atts, err := AttsElectraToConsensus(b.Body.Attestations)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Attestations")
+	}
+	deposits, err := DepositsToConsensus(b.Body.Deposits)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.Deposits")
+	}
+	exits, err := SignedExitsToConsensus(b.Body.VoluntaryExits)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.VoluntaryExits")
+	}
+	syncCommitteeBits, err := bytesutil.DecodeHexWithLength(b.Body.SyncAggregate.SyncCommitteeBits, fieldparams.SyncAggregateSyncCommitteeBytesLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.SyncAggregate.SyncCommitteeBits")
+	}
+	syncCommitteeSig, err := bytesutil.DecodeHexWithLength(b.Body.SyncAggregate.SyncCommitteeSignature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.SyncAggregate.SyncCommitteeSignature")
+	}
+	signedPayloadHeader, err := b.Body.SignedExecutionPayloadHeader.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.SignedExecutionPayloadHeader")
+	}
+
+	blsChanges, err := SignedBLSChangesToConsensus(b.Body.BLSToExecutionChanges)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body.BLSToExecutionChanges")
+	}
+	payloadAttestations := make([]*eth.PayloadAttestation, len(b.Body.PayloadAttestations))
+	for i, p := range b.Body.PayloadAttestations {
+		payloadAttestations[i], err = p.ToConsensus()
+		if err != nil {
+			return nil, server.NewDecodeError(err, fmt.Sprintf("Body.PayloadAttestations[%d]", i))
+		}
+	}
+
+	return &eth.BeaconBlockEpbs{
+		Slot:          primitives.Slot(slot),
+		ProposerIndex: primitives.ValidatorIndex(proposerIndex),
+		ParentRoot:    parentRoot,
+		StateRoot:     stateRoot,
+		Body: &eth.BeaconBlockBodyEpbs{
+			RandaoReveal: randaoReveal,
+			Eth1Data: &eth.Eth1Data{
+				DepositRoot:  depositRoot,
+				DepositCount: depositCount,
+				BlockHash:    blockHash,
+			},
+			Graffiti:          graffiti,
+			ProposerSlashings: proposerSlashings,
+			AttesterSlashings: attesterSlashings,
+			Attestations:      atts,
+			Deposits:          deposits,
+			VoluntaryExits:    exits,
+			SyncAggregate: &eth.SyncAggregate{
+				SyncCommitteeBits:      syncCommitteeBits,
+				SyncCommitteeSignature: syncCommitteeSig,
+			},
+			BlsToExecutionChanges:        blsChanges,
+			SignedExecutionPayloadHeader: signedPayloadHeader,
+			PayloadAttestations:          payloadAttestations,
+		},
+	}, nil
+}
+
+func (p *PayloadAttestation) ToConsensus() (*eth.PayloadAttestation, error) {
+	if p == nil {
+		return nil, errNilValue
+	}
+	aggregationBits, err := bytesutil.DecodeHexWithLength(p.AggregationBits, fieldparams.PTCSize/8)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "AggregationBits")
+	}
+	data, err := p.Data.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Data")
+	}
+	sig, err := bytesutil.DecodeHexWithLength(p.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	return &eth.PayloadAttestation{
+		AggregationBits: aggregationBits,
+		Data:            data,
+		Signature:       sig,
+	}, nil
+}
+
+func (p *PayloadAttestationData) ToConsensus() (*eth.PayloadAttestationData, error) {
+	if p == nil {
+		return nil, errNilValue
+	}
+	beaconBlockRoot, err := bytesutil.DecodeHexWithLength(p.BeaconBlockRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BeaconBlockRoot")
+	}
+	slot, err := strconv.ParseUint(p.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	payloadStatus, err := strconv.ParseUint(p.PayloadStatus, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "PayloadStatus")
+	}
+	return &eth.PayloadAttestationData{
+		BeaconBlockRoot: beaconBlockRoot,
+		Slot:            primitives.Slot(slot),
+		PayloadStatus:   primitives.PTCStatus(payloadStatus),
+	}, nil
+}
+
+func (p *SignedExecutionPayloadHeader) ToConsensus() (*enginev1.SignedExecutionPayloadHeader, error) {
+	if p == nil {
+		return nil, errNilValue
+	}
+	sig, err := bytesutil.DecodeHexWithLength(p.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	header, err := p.Message.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Header")
+	}
+	return &enginev1.SignedExecutionPayloadHeader{
+		Message:   header,
+		Signature: sig,
+	}, nil
+}
+
+func (p *ExecutionPayloadHeaderEPBS) ToConsensus() (*enginev1.ExecutionPayloadHeaderEPBS, error) {
+	parentBlockHash, err := bytesutil.DecodeHexWithLength(p.ParentBlockHash, common.HashLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentBlockHash")
+	}
+	parentBlockRoot, err := bytesutil.DecodeHexWithLength(p.ParentBlockRoot, common.HashLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentBlockRoot")
+	}
+	blockHash, err := bytesutil.DecodeHexWithLength(p.BlockHash, common.HashLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BlockHash")
+	}
+	gasLimit, err := strconv.ParseUint(p.GasLimit, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "GasLimit")
+	}
+	builderIndex, err := strconv.ParseUint(p.BuilderIndex, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BuilderIndex")
+	}
+	slot, err := strconv.ParseUint(p.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	value, err := strconv.ParseUint(p.Value, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Value")
+	}
+	blobKzgCommitmentsRoot, err := bytesutil.DecodeHexWithLength(p.BlobKzgCommitmentsRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BlobKzgCommitmentsRoot")
+	}
+	return &enginev1.ExecutionPayloadHeaderEPBS{
+		ParentBlockHash:        parentBlockHash,
+		ParentBlockRoot:        parentBlockRoot,
+		BlockHash:              blockHash,
+		GasLimit:               gasLimit,
+		BuilderIndex:           primitives.ValidatorIndex(builderIndex),
+		Slot:                   primitives.Slot(slot),
+		Value:                  value,
+		BlobKzgCommitmentsRoot: blobKzgCommitmentsRoot,
+	}, nil
+}
+
+func (b *SignedBeaconBlockEpbs) ToConsensus() (*eth.SignedBeaconBlockEpbs, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+
+	sig, err := bytesutil.DecodeHexWithLength(b.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	block, err := b.Message.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Message")
+	}
+	return &eth.SignedBeaconBlockEpbs{
+		Block:     block,
+		Signature: sig,
+	}, nil
+}
+
+func BeaconBlockEpbsFromConsensus(b *eth.BeaconBlockEpbs) (*BeaconBlockEpbs, error) {
+	signedPayloadHeader, err := SignedExecutionPayloadHeaderFromConsensus(b.Body.SignedExecutionPayloadHeader)
+	if err != nil {
+		return nil, err
+	}
+	payloadAttestations, err := PayloadAttestationsFromConsensus(b.Body.PayloadAttestations)
+	if err != nil {
+		return nil, err
+	}
+	return &BeaconBlockEpbs{
+		Slot:          fmt.Sprintf("%d", b.Slot),
+		ProposerIndex: fmt.Sprintf("%d", b.ProposerIndex),
+		ParentRoot:    hexutil.Encode(b.ParentRoot),
+		StateRoot:     hexutil.Encode(b.StateRoot),
+		Body: &BeaconBlockBodyEpbs{
+			RandaoReveal:      hexutil.Encode(b.Body.RandaoReveal),
+			Eth1Data:          Eth1DataFromConsensus(b.Body.Eth1Data),
+			Graffiti:          hexutil.Encode(b.Body.Graffiti),
+			ProposerSlashings: ProposerSlashingsFromConsensus(b.Body.ProposerSlashings),
+			AttesterSlashings: AttesterSlashingsElectraFromConsensus(b.Body.AttesterSlashings),
+			Attestations:      AttsElectraFromConsensus(b.Body.Attestations),
+			Deposits:          DepositsFromConsensus(b.Body.Deposits),
+			VoluntaryExits:    SignedExitsFromConsensus(b.Body.VoluntaryExits),
+			SyncAggregate: &SyncAggregate{
+				SyncCommitteeBits:      hexutil.Encode(b.Body.SyncAggregate.SyncCommitteeBits),
+				SyncCommitteeSignature: hexutil.Encode(b.Body.SyncAggregate.SyncCommitteeSignature),
+			},
+			BLSToExecutionChanges:        SignedBLSChangesFromConsensus(b.Body.BlsToExecutionChanges),
+			SignedExecutionPayloadHeader: signedPayloadHeader,
+			PayloadAttestations:          payloadAttestations,
+		},
+	}, nil
+}
+
+func SignedExecutionPayloadEnvelopeFromConsensus(b *enginev1.SignedExecutionPayloadEnvelope) (*SignedExecutionPayloadEnvelope, error) {
+	payload, err := ExecutionPayloadEnvelopeFromConsensus(b.Message)
+	if err != nil {
+		return nil, err
+	}
+	return &SignedExecutionPayloadEnvelope{
+		Message:   payload,
+		Signature: hexutil.Encode(b.Signature),
+	}, nil
+}
+
+func ExecutionPayloadEnvelopeFromConsensus(b *enginev1.ExecutionPayloadEnvelope) (*ExecutionPayloadEnvelope, error) {
+	payload, err := ExecutionPayloadDenebFromConsensus(b.Payload)
+	if err != nil {
+		return nil, err
+	}
+	committments := make([]string, len(b.BlobKzgCommitments))
+	for i, c := range b.BlobKzgCommitments {
+		committments[i] = hexutil.Encode(c)
+	}
+
+	executionRequests := ExecutionRequestsFromConsensus(b.ExecutionRequests)
+	return &ExecutionPayloadEnvelope{
+		Payload:            payload,
+		ExecutionRequests:  executionRequests,
+		BuilderIndex:       fmt.Sprintf("%d", b.BuilderIndex),
+		BeaconBlockRoot:    hexutil.Encode(b.BeaconBlockRoot),
+		Slot:               fmt.Sprintf("%d", b.Slot),
+		BlobKzgCommitments: committments,
+		StateRoot:          hexutil.Encode(b.StateRoot),
+	}, nil
+}
+
+func SignedBeaconBlockEpbsFromConsensus(b *eth.SignedBeaconBlockEpbs) (*SignedBeaconBlockEpbs, error) {
+	block, err := BeaconBlockEpbsFromConsensus(b.Block)
+	if err != nil {
+		return nil, err
+	}
+	return &SignedBeaconBlockEpbs{
+		Message:   block,
+		Signature: hexutil.Encode(b.Signature),
+	}, nil
+}
+
+func SignedExecutionPayloadHeaderFromConsensus(b *enginev1.SignedExecutionPayloadHeader) (*SignedExecutionPayloadHeader, error) {
+	header, err := ExecutionPayloadHeaderEPBSFromConsensus(b.Message)
+	if err != nil {
+		return nil, err
+	}
+	return &SignedExecutionPayloadHeader{
+		Message:   header,
+		Signature: hexutil.Encode(b.Signature),
+	}, nil
+}
+
+func ExecutionPayloadHeaderEPBSFromConsensus(b *enginev1.ExecutionPayloadHeaderEPBS) (*ExecutionPayloadHeaderEPBS, error) {
+	return &ExecutionPayloadHeaderEPBS{
+		ParentBlockHash:        hexutil.Encode(b.ParentBlockHash),
+		ParentBlockRoot:        hexutil.Encode(b.ParentBlockRoot),
+		BlockHash:              hexutil.Encode(b.BlockHash),
+		GasLimit:               fmt.Sprintf("%d", b.GasLimit),
+		BuilderIndex:           fmt.Sprintf("%d", b.BuilderIndex),
+		Slot:                   fmt.Sprintf("%d", b.Slot),
+		Value:                  fmt.Sprintf("%d", b.Value),
+		BlobKzgCommitmentsRoot: hexutil.Encode(b.BlobKzgCommitmentsRoot),
+	}, nil
+}
+
+func PayloadAttestationsFromConsensus(b []*eth.PayloadAttestation) ([]*PayloadAttestation, error) {
+	payloadAttestations := make([]*PayloadAttestation, len(b))
+	for i, p := range b {
+		data, err := PayloadAttestationDataFromConsensus(p.Data)
+		if err != nil {
+			return nil, err
+		}
+		payloadAttestations[i] = &PayloadAttestation{
+			AggregationBits: hexutil.Encode(p.AggregationBits),
+			Data:            data,
+			Signature:       hexutil.Encode(p.Signature),
+		}
+	}
+	return payloadAttestations, nil
+}
+
+func PayloadAttestationDataFromConsensus(b *eth.PayloadAttestationData) (*PayloadAttestationData, error) {
+	return &PayloadAttestationData{
+		BeaconBlockRoot: hexutil.Encode(b.BeaconBlockRoot),
+		Slot:            fmt.Sprintf("%d", b.Slot),
+		PayloadStatus:   fmt.Sprintf("%d", b.PayloadStatus),
+	}, nil
+}

api/server/structs/endpoints_beacon.go

@@ -250,17 +250,3 @@ type ChainHead struct {
 	PreviousJustifiedBlockRoot string `json:"previous_justified_block_root"`
 	OptimisticStatus           bool   `json:"optimistic_status"`
 }
-
-type GetPendingDepositsResponse struct {
-	Version             string            `json:"version"`
-	ExecutionOptimistic bool              `json:"execution_optimistic"`
-	Finalized           bool              `json:"finalized"`
-	Data                []*PendingDeposit `json:"data"`
-}
-
-type GetPendingPartialWithdrawalsResponse struct {
-	Version             string                      `json:"version"`
-	ExecutionOptimistic bool                        `json:"execution_optimistic"`
-	Finalized           bool                        `json:"finalized"`
-	Data                []*PendingPartialWithdrawal `json:"data"`
-}

api/server/structs/endpoints_debug.go

@@ -54,5 +54,4 @@ type ForkChoiceNodeExtraData struct {
 	Balance                  string `json:"balance"`
 	ExecutionOptimistic      bool   `json:"execution_optimistic"`
 	TimeStamp                string `json:"timestamp"`
-	Target                   string `json:"target"`
 }

api/server/structs/endpoints_events.go

@@ -20,6 +20,13 @@ type BlockEvent struct {
 	ExecutionOptimistic bool   `json:"execution_optimistic"`
 }
 
+type PayloadEvent struct {
+	Slot                string `json:"slot"`
+	BlockRoot           string `json:"block_root"`
+	ExecutionBlockHash  string `json:"execution_block_hash"`
+	ExecutionOptimistic bool   `json:"execution_optimistic"`
+}
+
 type AggregatedAttEventSource struct {
 	Aggregate *Attestation `json:"aggregate"`
 }

api/server/structs/other.go

@@ -244,6 +244,26 @@ type Withdrawal struct {
 	Amount           string `json:"amount"`
 }
 
+type DepositRequest struct {
+	Pubkey                string `json:"pubkey"`
+	WithdrawalCredentials string `json:"withdrawal_credentials"`
+	Amount                string `json:"amount"`
+	Signature             string `json:"signature"`
+	Index                 string `json:"index"`
+}
+
+type WithdrawalRequest struct {
+	SourceAddress   string `json:"source_address"`
+	ValidatorPubkey string `json:"validator_pubkey"`
+	Amount          string `json:"amount"`
+}
+
+type ConsolidationRequest struct {
+	SourceAddress string `json:"source_address"`
+	SourcePubkey  string `json:"source_pubkey"`
+	TargetPubkey  string `json:"target_pubkey"`
+}
+
 type PendingDeposit struct {
 	Pubkey                string `json:"pubkey"`
 	WithdrawalCredentials string `json:"withdrawal_credentials"`

async/multilock.go

@@ -125,7 +125,7 @@ func getChan(key string) chan byte {
 
 // Return a new string with unique elements.
 func unique(arr []string) []string {
-	if len(arr) <= 1 {
+	if arr == nil || len(arr) <= 1 {
 		return arr
 	}
 

beacon-chain/blockchain/BUILD.bazel

@@ -6,9 +6,11 @@ go_library(
         "chain_info.go",
         "chain_info_forkchoice.go",
         "currently_syncing_block.go",
+        "currently_syncing_execution_payload_envelope.go",
         "defragment.go",
         "error.go",
         "execution_engine.go",
+        "execution_engine_epbs.go",
         "forkchoice_update_execution.go",
         "head.go",
         "head_sync_committee_info.go",
@@ -25,8 +27,9 @@ go_library(
         "receive_attestation.go",
         "receive_blob.go",
         "receive_block.go",
+        "receive_execution_payload_envelope.go",
+        "receive_payload_attestation_message.go",
         "service.go",
-        "setup_forchoice.go",
         "tracked_proposer.go",
         "weak_subjectivity_checks.go",
     ],
@@ -44,7 +47,7 @@ go_library(
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/core/altair:go_default_library",
         "//beacon-chain/core/blocks:go_default_library",
-        "//beacon-chain/core/electra:go_default_library",
+        "//beacon-chain/core/epbs:go_default_library",
         "//beacon-chain/core/epoch/precompute:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
         "//beacon-chain/core/feed/state:go_default_library",
@@ -97,8 +100,8 @@ go_library(
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_prometheus_client_golang//prometheus:go_default_library",
         "@com_github_prometheus_client_golang//prometheus/promauto:go_default_library",
-        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
+        "@io_opencensus_go//trace:go_default_library",
         "@org_golang_x_sync//errgroup:go_default_library",
     ],
 )
@@ -111,6 +114,7 @@ go_test(
         "chain_info_norace_test.go",
         "chain_info_test.go",
         "checktags_test.go",
+        "epbs_test.go",
         "error_test.go",
         "execution_engine_test.go",
         "forkchoice_update_execution_test.go",
@@ -126,6 +130,7 @@ go_test(
         "process_block_test.go",
         "receive_attestation_test.go",
         "receive_block_test.go",
+        "receive_execution_payload_envelope_test.go",
         "service_norace_test.go",
         "service_test.go",
         "setup_test.go",
@@ -156,7 +161,6 @@ go_test(
         "//beacon-chain/forkchoice/doubly-linked-tree:go_default_library",
         "//beacon-chain/forkchoice/types:go_default_library",
         "//beacon-chain/operations/attestations:go_default_library",
-        "//beacon-chain/operations/attestations/kv:go_default_library",
         "//beacon-chain/operations/blstoexec:go_default_library",
         "//beacon-chain/operations/slashings:go_default_library",
         "//beacon-chain/operations/voluntaryexits:go_default_library",
@@ -181,6 +185,7 @@ go_test(
         "//testing/assert:go_default_library",
         "//testing/require:go_default_library",
         "//testing/util:go_default_library",
+        "//testing/util/random:go_default_library",
         "//time:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_ethereum_go_ethereum//common:go_default_library",
@@ -188,7 +193,6 @@ go_test(
         "@com_github_ethereum_go_ethereum//core/types:go_default_library",
         "@com_github_holiman_uint256//:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
-        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
         "@com_github_sirupsen_logrus//hooks/test:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",

beacon-chain/blockchain/chain_info.go

@@ -43,7 +43,7 @@ type ForkchoiceFetcher interface {
 	GetProposerHead() [32]byte
 	SetForkChoiceGenesisTime(uint64)
 	UpdateHead(context.Context, primitives.Slot)
-	HighestReceivedBlockSlot() primitives.Slot
+	HighestReceivedBlockSlotRoot() (primitives.Slot, [32]byte)
 	ReceivedBlocksLastEpoch() (uint64, error)
 	InsertNode(context.Context, state.BeaconState, consensus_blocks.ROBlock) error
 	ForkChoiceDump(context.Context) (*forkchoice.Dump, error)
@@ -51,6 +51,8 @@ type ForkchoiceFetcher interface {
 	ProposerBoost() [32]byte
 	RecentBlockSlot(root [32]byte) (primitives.Slot, error)
 	IsCanonical(ctx context.Context, blockRoot [32]byte) (bool, error)
+	GetPTCVote(root [32]byte) primitives.PTCStatus
+	HashForBlockRoot(root [32]byte) [32]byte
 }
 
 // TimeFetcher retrieves the Ethereum consensus data that's related to time.
@@ -119,6 +121,12 @@ type OptimisticModeFetcher interface {
 	IsOptimisticForRoot(ctx context.Context, root [32]byte) (bool, error)
 }
 
+// ExecutionPayloadFetcher defines a common interface that returns forkchoice
+// information about payload block hashes
+type ExecutionPayloadFetcher interface {
+	HashInForkchoice([32]byte) bool
+}
+
 // FinalizedCheckpt returns the latest finalized checkpoint from chain store.
 func (s *Service) FinalizedCheckpt() *ethpb.Checkpoint {
 	s.cfg.ForkChoiceStore.RLock()
@@ -400,6 +408,14 @@ func (s *Service) InForkchoice(root [32]byte) bool {
 	return s.cfg.ForkChoiceStore.HasNode(root)
 }
 
+// HashInForkchoice returns true if the given payload block hash is found in
+// forkchoice
+func (s *Service) HashInForkchoice(hash [32]byte) bool {
+	s.cfg.ForkChoiceStore.RLock()
+	defer s.cfg.ForkChoiceStore.RUnlock()
+	return s.cfg.ForkChoiceStore.HasHash(hash)
+}
+
 // IsOptimisticForRoot takes the root as argument instead of the current head
 // and returns true if it is optimistic.
 func (s *Service) IsOptimisticForRoot(ctx context.Context, root [32]byte) (bool, error) {
@@ -536,6 +552,12 @@ func (s *Service) BlockBeingSynced(root [32]byte) bool {
 	return s.blockBeingSynced.isSyncing(root)
 }
 
+// PayloadBeingSynced returns whether the block with the given root is currently being synced
+func (s *Service) PayloadBeingSynced(root [32]byte) bool {
+	_, syncing := s.payloadBeingSynced.isSyncing(root)
+	return syncing
+}
+
 // RecentBlockSlot returns block slot form fork choice store
 func (s *Service) RecentBlockSlot(root [32]byte) (primitives.Slot, error) {
 	s.cfg.ForkChoiceStore.RLock()

beacon-chain/blockchain/chain_info_forkchoice.go

@@ -6,6 +6,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	consensus_blocks "github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/forkchoice"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
 )
 
@@ -30,11 +31,11 @@ func (s *Service) SetForkChoiceGenesisTime(timestamp uint64) {
 	s.cfg.ForkChoiceStore.SetGenesisTime(timestamp)
 }
 
-// HighestReceivedBlockSlot returns the corresponding value from forkchoice
-func (s *Service) HighestReceivedBlockSlot() primitives.Slot {
+// HighestReceivedBlockSlotRoot returns the corresponding value from forkchoice
+func (s *Service) HighestReceivedBlockSlotRoot() (primitives.Slot, [32]byte) {
 	s.cfg.ForkChoiceStore.RLock()
 	defer s.cfg.ForkChoiceStore.RUnlock()
-	return s.cfg.ForkChoiceStore.HighestReceivedBlockSlot()
+	return s.cfg.ForkChoiceStore.HighestReceivedBlockSlotRoot()
 }
 
 // ReceivedBlocksLastEpoch returns the corresponding value from forkchoice
@@ -100,3 +101,37 @@ func (s *Service) ParentRoot(root [32]byte) ([32]byte, error) {
 	defer s.cfg.ForkChoiceStore.RUnlock()
 	return s.cfg.ForkChoiceStore.ParentRoot(root)
 }
+
+// HashForBlockRoot wraps a call to the corresponding method in forkchoice
+func (s *Service) HashForBlockRoot(root [32]byte) [32]byte {
+	s.cfg.ForkChoiceStore.RLock()
+	defer s.cfg.ForkChoiceStore.RUnlock()
+	return s.cfg.ForkChoiceStore.HashForBlockRoot(root)
+}
+
+// GetPTCVote wraps a call to the corresponding method in forkchoice and checks
+// the currently syncing status
+// Warning: this method will return the current PTC status regardless of
+// timeliness. A client MUST call this method when about to submit a PTC
+// attestation, that is exactly at the threshold to submit the attestation.
+func (s *Service) GetPTCVote(root [32]byte) primitives.PTCStatus {
+	s.cfg.ForkChoiceStore.RLock()
+	f := s.cfg.ForkChoiceStore.GetPTCVote()
+	s.cfg.ForkChoiceStore.RUnlock()
+	if f != primitives.PAYLOAD_ABSENT {
+		return f
+	}
+	f, isSyncing := s.payloadBeingSynced.isSyncing(root)
+	if isSyncing {
+		return f
+	}
+	return primitives.PAYLOAD_ABSENT
+}
+
+// insertPayloadEnvelope wraps a locked call to the corresponding method in
+// forkchoice
+func (s *Service) insertPayloadEnvelope(envelope interfaces.ROExecutionPayloadEnvelope) error {
+	s.cfg.ForkChoiceStore.Lock()
+	defer s.cfg.ForkChoiceStore.Unlock()
+	return s.cfg.ForkChoiceStore.InsertPayloadEnvelope(envelope)
+}

beacon-chain/blockchain/chain_info_test.go

@@ -36,6 +36,7 @@ func prepareForkchoiceState(
 	blockRoot [32]byte,
 	parentRoot [32]byte,
 	payloadHash [32]byte,
+	parentHash [32]byte,
 	justified *ethpb.Checkpoint,
 	finalized *ethpb.Checkpoint,
 ) (state.BeaconState, blocks.ROBlock, error) {
@@ -68,7 +69,8 @@ func prepareForkchoiceState(
 			ParentRoot: parentRoot[:],
 			Body: &ethpb.BeaconBlockBodyBellatrix{
 				ExecutionPayload: &enginev1.ExecutionPayload{
-					BlockHash: payloadHash[:],
+					BlockHash:  payloadHash[:],
+					ParentHash: parentHash[:],
 				},
 			},
 		},
@@ -141,7 +143,7 @@ func TestUnrealizedJustifiedBlockHash(t *testing.T) {
 	service := &Service{cfg: &config{ForkChoiceStore: doublylinkedtree.New()}}
 	ojc := &ethpb.Checkpoint{Root: []byte{'j'}}
 	ofc := &ethpb.Checkpoint{Root: []byte{'f'}}
-	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 	service.cfg.ForkChoiceStore.SetBalancesByRooter(func(_ context.Context, _ [32]byte) ([]uint64, error) { return []uint64{}, nil })
@@ -335,22 +337,22 @@ func TestService_ChainHeads(t *testing.T) {
 	c := &Service{cfg: &config{ForkChoiceStore: doublylinkedtree.New()}}
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, [32]byte{'B'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 103, [32]byte{'d'}, [32]byte{'a'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 103, [32]byte{'d'}, [32]byte{'a'}, [32]byte{'D'}, [32]byte{'C'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 104, [32]byte{'e'}, [32]byte{'b'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 104, [32]byte{'e'}, [32]byte{'b'}, [32]byte{'E'}, [32]byte{'D'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 
@@ -432,10 +434,10 @@ func TestService_IsOptimistic(t *testing.T) {
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	c := &Service{cfg: &config{ForkChoiceStore: doublylinkedtree.New()}, head: &head{root: [32]byte{'b'}}}
-	st, roblock, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 
@@ -468,10 +470,10 @@ func TestService_IsOptimisticForRoot(t *testing.T) {
 	c := &Service{cfg: &config{ForkChoiceStore: doublylinkedtree.New()}, head: &head{root: [32]byte{'b'}}}
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	st, roblock, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
-	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, roblock, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, c.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 

beacon-chain/blockchain/currently_syncing_execution_payload_envelope.go

@@ -0,0 +1,32 @@
+package blockchain
+
+import (
+	"sync"
+
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+)
+
+type currentlySyncingPayload struct {
+	sync.Mutex
+	roots map[[32]byte]primitives.PTCStatus
+}
+
+func (b *currentlySyncingPayload) set(envelope interfaces.ROExecutionPayloadEnvelope) {
+	b.Lock()
+	defer b.Unlock()
+	b.roots[envelope.BeaconBlockRoot()] = primitives.PAYLOAD_PRESENT
+}
+
+func (b *currentlySyncingPayload) unset(root [32]byte) {
+	b.Lock()
+	defer b.Unlock()
+	delete(b.roots, root)
+}
+
+func (b *currentlySyncingPayload) isSyncing(root [32]byte) (status primitives.PTCStatus, isSyncing bool) {
+	b.Lock()
+	defer b.Unlock()
+	status, isSyncing = b.roots[root]
+	return
+}

beacon-chain/blockchain/epbs_test.go

@@ -0,0 +1,18 @@
+package blockchain
+
+import (
+	"testing"
+
+	doublylinkedtree "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/doubly-linked-tree"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/v5/testing/require"
+)
+
+func TestServiceGetPTCVote(t *testing.T) {
+	c := &currentlySyncingPayload{roots: make(map[[32]byte]primitives.PTCStatus)}
+	s := &Service{cfg: &config{ForkChoiceStore: doublylinkedtree.New()}, payloadBeingSynced: c}
+	r := [32]byte{'r'}
+	require.Equal(t, primitives.PAYLOAD_ABSENT, s.GetPTCVote(r))
+	c.roots[r] = primitives.PAYLOAD_WITHHELD
+	require.Equal(t, primitives.PAYLOAD_WITHHELD, s.GetPTCVote(r))
+}

beacon-chain/blockchain/error.go

@@ -30,6 +30,9 @@ var (
 	ErrNotCheckpoint = errors.New("not a checkpoint in forkchoice")
 	// ErrNilHead is returned when no head is present in the blockchain service.
 	ErrNilHead = errors.New("nil head")
+	// errInvalidValidatorIndex is returned when a validator index is
+	// invalid or unexpected
+	errInvalidValidatorIndex = errors.New("invalid validator index")
 )
 
 var errMaxBlobsExceeded = errors.New("Expected commitments in block exceeds MAX_BLOBS_PER_BLOCK")

beacon-chain/blockchain/execution_engine.go

@@ -2,6 +2,7 @@ package blockchain
 
 import (
 	"context"
+	"crypto/sha256"
 	"fmt"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -30,6 +31,8 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
+const blobCommitmentVersionKZG uint8 = 0x01
+
 var defaultLatestValidHash = bytesutil.PadTo([]byte{0xff}, 32)
 
 // notifyForkchoiceUpdate signals execution engine the fork choice updates. Execution engine should:
@@ -95,6 +98,14 @@ func (s *Service) notifyForkchoiceUpdate(ctx context.Context, arg *fcuConfig) (*
 				log.WithError(err).Error("Could not set head root to invalid")
 				return nil, nil
 			}
+			if len(invalidRoots) == 0 {
+				log.WithFields(logrus.Fields{
+					"slot":      headBlk.Slot(),
+					"blockRoot": fmt.Sprintf("%#x", bytesutil.Trunc(headRoot[:])),
+				}).Warn("invalid payload")
+				return nil, nil
+			}
+
 			if err := s.removeInvalidBlockAndState(ctx, invalidRoots); err != nil {
 				log.WithError(err).Error("Could not remove invalid block and state")
 				return nil, nil
@@ -109,6 +120,7 @@ func (s *Service) notifyForkchoiceUpdate(ctx context.Context, arg *fcuConfig) (*
 				}).Warn("Pruned invalid blocks, could not update head root")
 				return nil, invalidBlock{error: ErrInvalidPayload, root: arg.headRoot, invalidAncestorRoots: invalidRoots}
 			}
+
 			b, err := s.getBlock(ctx, r)
 			if err != nil {
 				log.WithError(err).Error("Could not get head block")
@@ -456,7 +468,13 @@ func kzgCommitmentsToVersionedHashes(body interfaces.ReadOnlyBeaconBlockBody) ([
 
 	versionedHashes := make([]common.Hash, len(commitments))
 	for i, commitment := range commitments {
-		versionedHashes[i] = primitives.ConvertKzgCommitmentToVersionedHash(commitment)
+		versionedHashes[i] = ConvertKzgCommitmentToVersionedHash(commitment)
 	}
 	return versionedHashes, nil
 }
+
+func ConvertKzgCommitmentToVersionedHash(commitment []byte) common.Hash {
+	versionedHash := sha256.Sum256(commitment)
+	versionedHash[0] = blobCommitmentVersionKZG
+	return versionedHash
+}

beacon-chain/blockchain/execution_engine_epbs.go

@@ -0,0 +1,62 @@
+package blockchain
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/execution"
+	"github.com/prysmaticlabs/prysm/v5/config/features"
+	payloadattribute "github.com/prysmaticlabs/prysm/v5/consensus-types/payload-attribute"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	"github.com/prysmaticlabs/prysm/v5/monitoring/tracing/trace"
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"github.com/sirupsen/logrus"
+)
+
+// notifyForkchoiceUpdate signals execution engine the fork choice updates. Execution engine should:
+// 1. Re-organizes the execution payload chain and corresponding state to make head_block_hash the head.
+// 2. Applies finality to the execution state: it irreversibly persists the chain of all execution payloads and corresponding state, up to and including finalized_block_hash.
+func (s *Service) notifyForkchoiceUpdateEPBS(ctx context.Context, blockhash [32]byte, attributes payloadattribute.Attributer) (*enginev1.PayloadIDBytes, error) {
+	ctx, span := trace.StartSpan(ctx, "blockChain.notifyForkchoiceUpdateEPBS")
+	defer span.End()
+
+	finalizedHash := s.cfg.ForkChoiceStore.FinalizedPayloadBlockHash()
+	justifiedHash := s.cfg.ForkChoiceStore.UnrealizedJustifiedPayloadBlockHash()
+	fcs := &enginev1.ForkchoiceState{
+		HeadBlockHash:      blockhash[:],
+		SafeBlockHash:      justifiedHash[:],
+		FinalizedBlockHash: finalizedHash[:],
+	}
+	if attributes == nil {
+		attributes = payloadattribute.EmptyWithVersion(version.EPBS)
+	}
+	payloadID, lastValidHash, err := s.cfg.ExecutionEngineCaller.ForkchoiceUpdated(ctx, fcs, attributes)
+	if err != nil {
+		switch {
+		case errors.Is(err, execution.ErrAcceptedSyncingPayloadStatus):
+			forkchoiceUpdatedOptimisticNodeCount.Inc()
+			log.WithFields(logrus.Fields{
+				"headPayloadBlockHash":      fmt.Sprintf("%#x", bytesutil.Trunc(blockhash[:])),
+				"finalizedPayloadBlockHash": fmt.Sprintf("%#x", bytesutil.Trunc(finalizedHash[:])),
+			}).Info("Called fork choice updated with optimistic block")
+			return payloadID, nil
+		case errors.Is(err, execution.ErrInvalidPayloadStatus):
+			log.WithError(err).Info("forkchoice updated to invalid block")
+			return nil, invalidBlock{error: ErrInvalidPayload, root: [32]byte(lastValidHash)}
+		default:
+			log.WithError(err).Error(ErrUndefinedExecutionEngineError)
+			return nil, nil
+		}
+	}
+	forkchoiceUpdatedValidNodeCount.Inc()
+	// If the forkchoice update call has an attribute, update the payload ID cache.
+	hasAttr := attributes != nil && !attributes.IsEmpty()
+	if hasAttr && payloadID == nil && !features.Get().PrepareAllPayloads {
+		log.WithFields(logrus.Fields{
+			"blockHash": fmt.Sprintf("%#x", blockhash[:]),
+		}).Error("Received nil payload ID on VALID engine response")
+	}
+	return payloadID, nil
+}

beacon-chain/blockchain/execution_engine_test.go

@@ -46,13 +46,13 @@ func Test_NotifyForkchoiceUpdate_GetPayloadAttrErrorCanContinue(t *testing.T) {
 
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, [32]byte{'B'}, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -104,13 +104,13 @@ func Test_NotifyForkchoiceUpdate(t *testing.T) {
 
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, [32]byte{'B'}, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -287,16 +287,16 @@ func Test_NotifyForkchoiceUpdate_NIlLVH(t *testing.T) {
 	require.NoError(t, fcs.UpdateJustifiedCheckpoint(ctx, &forkchoicetypes.Checkpoint{}))
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 1, bra, [32]byte{}, [32]byte{'A'}, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 1, bra, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 2, brb, bra, [32]byte{'B'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 2, brb, bra, [32]byte{'B'}, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 3, brc, brb, [32]byte{'C'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 3, brc, brb, [32]byte{'C'}, [32]byte{'B'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 4, brd, brc, [32]byte{'D'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 4, brd, brc, [32]byte{'D'}, [32]byte{'C'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -316,10 +316,8 @@ func Test_NotifyForkchoiceUpdate_NIlLVH(t *testing.T) {
 		headRoot:  brd,
 	}
 	_, err = service.notifyForkchoiceUpdate(ctx, a)
-	require.Equal(t, true, IsInvalidBlock(err))
-	require.Equal(t, brd, InvalidBlockRoot(err))
-	require.Equal(t, brd, InvalidAncestorRoots(err)[0])
-	require.Equal(t, 1, len(InvalidAncestorRoots(err)))
+	// The incoming block is not invalid because the empty node is still valid on ePBS.
+	require.Equal(t, false, IsInvalidBlock(err))
 }
 
 //
@@ -398,28 +396,28 @@ func Test_NotifyForkchoiceUpdateRecursive_DoublyLinkedTree(t *testing.T) {
 	require.NoError(t, fcs.UpdateJustifiedCheckpoint(ctx, &forkchoicetypes.Checkpoint{}))
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 1, bra, [32]byte{}, [32]byte{'A'}, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 1, bra, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 
 	bState, _ := util.DeterministicGenesisState(t, 10)
 	require.NoError(t, beaconDB.SaveState(ctx, bState, bra))
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 2, brb, bra, [32]byte{'B'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 2, brb, bra, [32]byte{'B'}, [32]byte{'A'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 3, brc, brb, [32]byte{'C'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 3, brc, brb, [32]byte{'C'}, [32]byte{'B'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 4, brd, brc, [32]byte{'D'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 4, brd, brc, [32]byte{'D'}, [32]byte{'C'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 5, bre, brb, [32]byte{'E'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 5, bre, brb, [32]byte{'E'}, [32]byte{'D'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 6, brf, bre, [32]byte{'F'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 6, brf, bre, [32]byte{'F'}, [32]byte{'E'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 7, brg, bre, [32]byte{'G'}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 7, brg, bre, [32]byte{'G'}, [32]byte{'F'}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -512,10 +510,10 @@ func Test_NotifyNewPayload(t *testing.T) {
 	require.NoError(t, err)
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 1, r, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 1, r, [32]byte{}, [32]byte{'A'}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -692,7 +690,7 @@ func Test_NotifyNewPayload(t *testing.T) {
 			}
 			service.cfg.ExecutionEngineCaller = e
 			root := [32]byte{'a'}
-			state, blkRoot, err := prepareForkchoiceState(ctx, 0, root, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+			state, blkRoot, err := prepareForkchoiceState(ctx, 0, root, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 			require.NoError(t, err)
 			require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 			postVersion, postHeader, err := getStateVersionAndPayload(tt.postState)
@@ -759,17 +757,17 @@ func Test_reportInvalidBlock(t *testing.T) {
 	service, tr := minimalTestService(t)
 	ctx, _, fcs := tr.ctx, tr.db, tr.fcs
 	jcp := &ethpb.Checkpoint{}
-	st, root, err := prepareForkchoiceState(ctx, 0, [32]byte{'A'}, [32]byte{}, [32]byte{'a'}, jcp, jcp)
+	st, root, err := prepareForkchoiceState(ctx, 0, [32]byte{'A'}, [32]byte{}, [32]byte{'a'}, [32]byte{}, jcp, jcp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 1, [32]byte{'B'}, [32]byte{'A'}, [32]byte{'b'}, jcp, jcp)
+	st, root, err = prepareForkchoiceState(ctx, 1, [32]byte{'B'}, [32]byte{'A'}, [32]byte{'b'}, [32]byte{'a'}, jcp, jcp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 2, [32]byte{'C'}, [32]byte{'B'}, [32]byte{'c'}, jcp, jcp)
+	st, root, err = prepareForkchoiceState(ctx, 2, [32]byte{'C'}, [32]byte{'B'}, [32]byte{'c'}, [32]byte{'b'}, jcp, jcp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
 
-	st, root, err = prepareForkchoiceState(ctx, 3, [32]byte{'D'}, [32]byte{'C'}, [32]byte{'d'}, jcp, jcp)
+	st, root, err = prepareForkchoiceState(ctx, 3, [32]byte{'D'}, [32]byte{'C'}, [32]byte{'d'}, [32]byte{'c'}, jcp, jcp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
 
@@ -931,7 +929,7 @@ func Test_UpdateLastValidatedCheckpoint(t *testing.T) {
 	fjc := &forkchoicetypes.Checkpoint{Epoch: 0, Root: params.BeaconConfig().ZeroHash}
 	require.NoError(t, fcs.UpdateJustifiedCheckpoint(ctx, fjc))
 	require.NoError(t, fcs.UpdateFinalizedCheckpoint(fjc))
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, genesisRoot, params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, genesisRoot, params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 	fcs.SetOriginRoot(genesisRoot)
@@ -965,7 +963,7 @@ func Test_UpdateLastValidatedCheckpoint(t *testing.T) {
 	require.NoError(t, beaconDB.SaveStateSummary(ctx, opStateSummary))
 	tenjc := &ethpb.Checkpoint{Epoch: 10, Root: genesisRoot[:]}
 	tenfc := &ethpb.Checkpoint{Epoch: 10, Root: genesisRoot[:]}
-	state, blkRoot, err = prepareForkchoiceState(ctx, 320, opRoot, genesisRoot, params.BeaconConfig().ZeroHash, tenjc, tenfc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 320, opRoot, genesisRoot, params.BeaconConfig().ZeroHash, [32]byte{}, tenjc, tenfc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 	assert.NoError(t, beaconDB.SaveGenesisBlockRoot(ctx, opRoot))
@@ -994,7 +992,7 @@ func Test_UpdateLastValidatedCheckpoint(t *testing.T) {
 	require.NoError(t, beaconDB.SaveStateSummary(ctx, validSummary))
 	twentyjc := &ethpb.Checkpoint{Epoch: 20, Root: validRoot[:]}
 	twentyfc := &ethpb.Checkpoint{Epoch: 20, Root: validRoot[:]}
-	state, blkRoot, err = prepareForkchoiceState(ctx, 640, validRoot, genesisRoot, params.BeaconConfig().ZeroHash, twentyjc, twentyfc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 640, validRoot, genesisRoot, params.BeaconConfig().ZeroHash, [32]byte{}, twentyjc, twentyfc)
 	require.NoError(t, err)
 	fcs.SetBalancesByRooter(func(_ context.Context, _ [32]byte) ([]uint64, error) { return []uint64{}, nil })
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
@@ -1056,8 +1054,8 @@ func TestService_removeInvalidBlockAndState(t *testing.T) {
 
 	require.NoError(t, service.removeInvalidBlockAndState(ctx, [][32]byte{r1, r2}))
 
-	require.Equal(t, false, service.hasBlock(ctx, r1))
-	require.Equal(t, false, service.hasBlock(ctx, r2))
+	require.Equal(t, false, service.chainHasBlock(ctx, r1))
+	require.Equal(t, false, service.chainHasBlock(ctx, r2))
 	require.Equal(t, false, service.cfg.BeaconDB.HasStateSummary(ctx, r1))
 	require.Equal(t, false, service.cfg.BeaconDB.HasStateSummary(ctx, r2))
 	has, err := service.cfg.StateGen.HasState(ctx, r1)

beacon-chain/blockchain/forkchoice_update_execution.go

@@ -103,7 +103,7 @@ func (s *Service) forkchoiceUpdateWithExecution(ctx context.Context, args *fcuCo
 	}
 
 	// Only need to prune attestations from pool if the head has changed.
-	if err := s.pruneAttsFromPool(s.ctx, args.headState, args.headBlock); err != nil {
+	if err := s.pruneAttsFromPool(args.headBlock); err != nil {
 		log.WithError(err).Error("could not prune attestations from pool")
 	}
 	return nil

beacon-chain/blockchain/forkchoice_update_execution_test.go

@@ -122,13 +122,13 @@ func TestService_forkchoiceUpdateWithExecution_SameHeadRootNewProposer(t *testin
 
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 1, altairBlkRoot, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
-	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 2, bellatrixBlkRoot, altairBlkRoot, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, state, blkRoot))
 
@@ -164,10 +164,10 @@ func TestShouldOverrideFCU(t *testing.T) {
 	headRoot := [32]byte{'b'}
 	parentRoot := [32]byte{'a'}
 	ojc := &ethpb.Checkpoint{}
-	st, root, err := prepareForkchoiceState(ctx, 1, parentRoot, [32]byte{}, [32]byte{}, ojc, ojc)
+	st, root, err := prepareForkchoiceState(ctx, 1, parentRoot, [32]byte{}, [32]byte{}, [32]byte{}, ojc, ojc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 2, headRoot, parentRoot, [32]byte{}, ojc, ojc)
+	st, root, err = prepareForkchoiceState(ctx, 2, headRoot, parentRoot, [32]byte{}, [32]byte{}, ojc, ojc)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, root))
 

beacon-chain/blockchain/head_test.go

@@ -48,7 +48,7 @@ func TestSaveHead_Different(t *testing.T) {
 	require.NoError(t, err)
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, oldBlock.Block().Slot(), oldRoot, oldBlock.Block().ParentRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, oldBlock.Block().Slot(), oldRoot, oldBlock.Block().ParentRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	service.head = &head{
@@ -63,11 +63,11 @@ func TestSaveHead_Different(t *testing.T) {
 	wsb := util.SaveBlock(t, context.Background(), service.cfg.BeaconDB, newHeadSignedBlock)
 	newRoot, err := newHeadBlock.HashTreeRoot()
 	require.NoError(t, err)
-	state, blkRoot, err = prepareForkchoiceState(ctx, slots.PrevSlot(wsb.Block().Slot()), wsb.Block().ParentRoot(), service.cfg.ForkChoiceStore.CachedHeadRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, slots.PrevSlot(wsb.Block().Slot()), wsb.Block().ParentRoot(), service.cfg.ForkChoiceStore.CachedHeadRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 
-	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	headState, err := util.NewBeaconState()
@@ -101,7 +101,7 @@ func TestSaveHead_Different_Reorg(t *testing.T) {
 	require.NoError(t, err)
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, oldBlock.Block().Slot(), oldRoot, oldBlock.Block().ParentRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, oldBlock.Block().Slot(), oldRoot, oldBlock.Block().ParentRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	service.head = &head{
@@ -110,7 +110,7 @@ func TestSaveHead_Different_Reorg(t *testing.T) {
 	}
 
 	reorgChainParent := [32]byte{'B'}
-	state, blkRoot, err = prepareForkchoiceState(ctx, 0, reorgChainParent, oldRoot, oldBlock.Block().ParentRoot(), ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, 0, reorgChainParent, oldRoot, oldBlock.Block().ParentRoot(), [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 
@@ -122,7 +122,7 @@ func TestSaveHead_Different_Reorg(t *testing.T) {
 	wsb := util.SaveBlock(t, context.Background(), service.cfg.BeaconDB, newHeadSignedBlock)
 	newRoot, err := newHeadBlock.HashTreeRoot()
 	require.NoError(t, err)
-	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	headState, err := util.NewBeaconState()
@@ -238,11 +238,11 @@ func TestRetrieveHead_ReadOnly(t *testing.T) {
 	wsb := util.SaveBlock(t, context.Background(), service.cfg.BeaconDB, newHeadSignedBlock)
 	newRoot, err := newHeadBlock.HashTreeRoot()
 	require.NoError(t, err)
-	state, blkRoot, err := prepareForkchoiceState(ctx, slots.PrevSlot(wsb.Block().Slot()), wsb.Block().ParentRoot(), service.cfg.ForkChoiceStore.CachedHeadRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, slots.PrevSlot(wsb.Block().Slot()), wsb.Block().ParentRoot(), service.cfg.ForkChoiceStore.CachedHeadRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 
-	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, ojc, ofc)
+	state, blkRoot, err = prepareForkchoiceState(ctx, wsb.Block().Slot(), newRoot, wsb.Block().ParentRoot(), [32]byte{}, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	headState, err := util.NewBeaconState()
@@ -304,7 +304,7 @@ func TestSaveOrphanedAtts(t *testing.T) {
 	for _, blk := range []*ethpb.SignedBeaconBlock{blkG, blk1, blk2, blk3, blk4} {
 		r, err := blk.Block.HashTreeRoot()
 		require.NoError(t, err)
-		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, ojc, ofc)
+		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 		util.SaveBlock(t, ctx, beaconDB, blk)
@@ -381,7 +381,7 @@ func TestSaveOrphanedOps(t *testing.T) {
 	for _, blk := range []*ethpb.SignedBeaconBlock{blkG, blk1, blk2, blk3, blk4} {
 		r, err := blk.Block.HashTreeRoot()
 		require.NoError(t, err)
-		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, ojc, ofc)
+		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 		util.SaveBlock(t, ctx, beaconDB, blk)
@@ -451,7 +451,7 @@ func TestSaveOrphanedAtts_CanFilter(t *testing.T) {
 	for _, blk := range []*ethpb.SignedBeaconBlockCapella{blkG, blk1, blk2, blk4} {
 		r, err := blk.Block.HashTreeRoot()
 		require.NoError(t, err)
-		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, ojc, ofc)
+		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 		util.SaveBlock(t, ctx, beaconDB, blk)
@@ -509,7 +509,7 @@ func TestSaveOrphanedAtts_DoublyLinkedTrie(t *testing.T) {
 	for _, blk := range []*ethpb.SignedBeaconBlock{blkG, blk1, blk2, blk3, blk4} {
 		r, err := blk.Block.HashTreeRoot()
 		require.NoError(t, err)
-		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, ojc, ofc)
+		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 		util.SaveBlock(t, ctx, beaconDB, blk)
@@ -568,7 +568,7 @@ func TestSaveOrphanedAtts_CanFilter_DoublyLinkedTrie(t *testing.T) {
 	for _, blk := range []*ethpb.SignedBeaconBlock{blkG, blk1, blk2, blk4} {
 		r, err := blk.Block.HashTreeRoot()
 		require.NoError(t, err)
-		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, ojc, ofc)
+		state, blkRoot, err := prepareForkchoiceState(ctx, blk.Block.Slot, r, bytesutil.ToBytes32(blk.Block.ParentRoot), [32]byte{}, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 		util.SaveBlock(t, ctx, beaconDB, blk)
@@ -583,7 +583,7 @@ func TestUpdateHead_noSavedChanges(t *testing.T) {
 	ctx, beaconDB, fcs := tr.ctx, tr.db, tr.fcs
 
 	ojp := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	st, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, [32]byte{}, ojp, ojp)
+	st, blkRoot, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, [32]byte{}, [32]byte{}, ojp, ojp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, blkRoot))
 
@@ -603,7 +603,7 @@ func TestUpdateHead_noSavedChanges(t *testing.T) {
 	headRoot := service.headRoot()
 	require.Equal(t, [32]byte{}, headRoot)
 
-	st, blkRoot, err = prepareForkchoiceState(ctx, 0, bellatrixBlkRoot, [32]byte{}, [32]byte{}, fcp, fcp)
+	st, blkRoot, err = prepareForkchoiceState(ctx, 0, bellatrixBlkRoot, [32]byte{}, [32]byte{}, [32]byte{}, fcp, fcp)
 	require.NoError(t, err)
 	require.NoError(t, fcs.InsertNode(ctx, st, blkRoot))
 	fcs.SetBalancesByRooter(func(context.Context, [32]byte) ([]uint64, error) { return []uint64{1, 2}, nil })

beacon-chain/blockchain/kzg/trusted_setup.json

@@ -4164,4 +4164,4 @@
     "0xa92039a08b5502d5b211a7744099c9f93fa8c90cedcb1d05e92f01886219dd464eb5fb0337496ad96ed09c987da4e5f019035c5b01cc09b2a18b8a8dd419bc5895388a07e26958f6bd26751929c25f89b8eb4a299d822e2d26fec9ef350e0d3c",
     "0x92dcc5a1c8c3e1b28b1524e3dd6dbecd63017c9201da9dbe077f1b82adc08c50169f56fc7b5a3b28ec6b89254de3e2fd12838a761053437883c3e01ba616670cea843754548ef84bcc397de2369adcca2ab54cd73c55dc68d87aec3fc2fe4f10"
   ]
-}
+}

beacon-chain/blockchain/log.go

@@ -45,43 +45,43 @@ func logStateTransitionData(b interfaces.ReadOnlyBeaconBlock) error {
 		}
 		log = log.WithField("syncBitsCount", agg.SyncCommitteeBits.Count())
 	}
-	if b.Version() >= version.Bellatrix {
-		p, err := b.Body().Execution()
+	if b.Version() >= version.EPBS {
+		sh, err := b.Body().SignedExecutionPayloadHeader()
 		if err != nil {
 			return err
 		}
-		log = log.WithField("payloadHash", fmt.Sprintf("%#x", bytesutil.Trunc(p.BlockHash())))
-		txs, err := p.Transactions()
-		switch {
-		case errors.Is(err, consensus_types.ErrUnsupportedField):
-		case err != nil:
+		header, err := sh.Header()
+		if err != nil {
 			return err
-		default:
-			log = log.WithField("txCount", len(txs))
-			txsPerSlotCount.Set(float64(len(txs)))
 		}
-	}
-	if b.Version() >= version.Deneb {
-		kzgs, err := b.Body().BlobKzgCommitments()
-		if err != nil {
-			log.WithError(err).Error("Failed to get blob KZG commitments")
-		} else if len(kzgs) > 0 {
-			log = log.WithField("kzgCommitmentCount", len(kzgs))
+		log = log.WithFields(logrus.Fields{"payloadHash": fmt.Sprintf("%#x", header.BlockHash()),
+			"builderIndex":           header.BuilderIndex(),
+			"value":                  header.Value(),
+			"blobKzgCommitmentsRoot": fmt.Sprintf("%#x", header.BlobKzgCommitmentsRoot()),
+		})
+	} else {
+		if b.Version() >= version.Bellatrix {
+			p, err := b.Body().Execution()
+			if err != nil {
+				return err
+			}
+			log = log.WithField("payloadHash", fmt.Sprintf("%#x", bytesutil.Trunc(p.BlockHash())))
+			txs, err := p.Transactions()
+			switch {
+			case errors.Is(err, consensus_types.ErrUnsupportedField):
+			case err != nil:
+				return err
+			default:
+				log = log.WithField("txCount", len(txs))
+				txsPerSlotCount.Set(float64(len(txs)))
+			}
 		}
-	}
-	if b.Version() >= version.Electra {
-		eReqs, err := b.Body().ExecutionRequests()
-		if err != nil {
-			log.WithError(err).Error("Failed to get execution requests")
-		} else {
-			if len(eReqs.Deposits) > 0 {
-				log = log.WithField("depositRequestCount", len(eReqs.Deposits))
-			}
-			if len(eReqs.Consolidations) > 0 {
-				log = log.WithField("consolidationRequestCount", len(eReqs.Consolidations))
-			}
-			if len(eReqs.Withdrawals) > 0 {
-				log = log.WithField("withdrawalRequestCount", len(eReqs.Withdrawals))
+		if b.Version() >= version.Deneb {
+			kzgs, err := b.Body().BlobKzgCommitments()
+			if err != nil {
+				log.WithError(err).Error("Failed to get blob KZG commitments")
+			} else if len(kzgs) > 0 {
+				log = log.WithField("kzgCommitmentCount", len(kzgs))
 			}
 		}
 	}
@@ -113,6 +113,18 @@ func logBlockSyncStatus(block interfaces.ReadOnlyBeaconBlock, blockRoot [32]byte
 			"dataAvailabilityWaitedTime": daWaitedTime,
 			"deposits":                   len(block.Body().Deposits()),
 		}
+		if block.Version() >= version.EPBS {
+			ph, err := block.Body().SignedExecutionPayloadHeader()
+			if err != nil {
+				return err
+			}
+			header, err := ph.Header()
+			if err != nil {
+				return err
+			}
+			hash := header.ParentBlockHash()
+			lf["parentHash"] = fmt.Sprintf("0x%s...", hex.EncodeToString(hash[:])[:8])
+		}
 		log.WithFields(lf).Debug("Synced new block")
 	} else {
 		log.WithFields(logrus.Fields{
@@ -128,6 +140,9 @@ func logBlockSyncStatus(block interfaces.ReadOnlyBeaconBlock, blockRoot [32]byte
 
 // logs payload related data every slot.
 func logPayload(block interfaces.ReadOnlyBeaconBlock) error {
+	if block.Version() >= version.EPBS {
+		return nil
+	}
 	isExecutionBlk, err := blocks.IsExecutionBlock(block.Body())
 	if err != nil {
 		return errors.Wrap(err, "could not determine if block is execution block")

beacon-chain/blockchain/metrics.go

@@ -182,6 +182,10 @@ var (
 		Name: "chain_service_processing_milliseconds",
 		Help: "Total time to call a chain service in ReceiveBlock()",
 	})
+	executionEngineProcessingTime = promauto.NewSummary(prometheus.SummaryOpts{
+		Name: "execution_engine_processing_milliseconds",
+		Help: "Total time to process an execution payload envelope in ReceiveExecutionPayloadEnvelope()",
+	})
 	dataAvailWaitedTime = promauto.NewSummary(prometheus.SummaryOpts{
 		Name: "da_waited_time_milliseconds",
 		Help: "Total time spent waiting for a data availability check in ReceiveBlock()",

beacon-chain/blockchain/options.go

@@ -1,6 +1,8 @@
 package blockchain
 
 import (
+	"sync"
+
 	"github.com/prysmaticlabs/prysm/v5/async/event"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/cache"
 	statefeed "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed/state"
@@ -69,6 +71,22 @@ func WithDepositCache(c cache.DepositCache) Option {
 	}
 }
 
+// WithPayloadAttestationCache for payload attestation cache.
+func WithPayloadAttestationCache(c *cache.PayloadAttestationCache) Option {
+	return func(s *Service) error {
+		s.cfg.PayloadAttestationCache = c
+		return nil
+	}
+}
+
+// WithPayloadEnvelopeCache for payload envelope cache.
+func WithPayloadEnvelopeCache(c *sync.Map) Option {
+	return func(s *Service) error {
+		s.cfg.PayloadEnvelopeCache = c
+		return nil
+	}
+}
+
 // WithPayloadIDCache for payload ID cache.
 func WithPayloadIDCache(c *cache.PayloadIDCache) Option {
 	return func(s *Service) error {
@@ -213,10 +231,3 @@ func WithSyncChecker(checker Checker) Option {
 		return nil
 	}
 }
-
-func WithSlasherEnabled(enabled bool) Option {
-	return func(s *Service) error {
-		s.slasherEnabled = enabled
-		return nil
-	}
-}

beacon-chain/blockchain/process_attestation.go

@@ -80,7 +80,7 @@ func (s *Service) OnAttestation(ctx context.Context, a ethpb.Att, disparity time
 	}
 
 	// Use the target state to verify attesting indices are valid.
-	committees, err := helpers.AttestationCommitteesFromState(ctx, baseState, a)
+	committees, err := helpers.AttestationCommittees(ctx, baseState, a)
 	if err != nil {
 		return err
 	}
@@ -97,7 +97,7 @@ func (s *Service) OnAttestation(ctx context.Context, a ethpb.Att, disparity time
 	// We assume trusted attestation in this function has verified signature.
 
 	// Update forkchoice store with the new attestation for updating weight.
-	s.cfg.ForkChoiceStore.ProcessAttestation(ctx, indexedAtt.GetAttestingIndices(), bytesutil.ToBytes32(a.GetData().BeaconBlockRoot), a.GetData().Target.Epoch)
+	s.cfg.ForkChoiceStore.ProcessAttestation(ctx, indexedAtt.GetAttestingIndices(), bytesutil.ToBytes32(a.GetData().BeaconBlockRoot), a.GetData().Slot)
 
 	return nil
 }

beacon-chain/blockchain/process_attestation_test.go

@@ -32,7 +32,7 @@ func TestStore_OnAttestation_ErrorConditions(t *testing.T) {
 	util.SaveBlock(t, ctx, beaconDB, blkWithoutState)
 
 	cp := &ethpb.Checkpoint{}
-	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, cp, cp)
+	st, roblock, err := prepareForkchoiceState(ctx, 0, [32]byte{}, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, cp, cp)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 
@@ -41,7 +41,7 @@ func TestStore_OnAttestation_ErrorConditions(t *testing.T) {
 	r, err := blkWithStateBadAtt.Block.HashTreeRoot()
 	require.NoError(t, err)
 	cp = &ethpb.Checkpoint{Root: r[:]}
-	st, roblock, err = prepareForkchoiceState(ctx, blkWithStateBadAtt.Block.Slot, r, [32]byte{}, params.BeaconConfig().ZeroHash, cp, cp)
+	st, roblock, err = prepareForkchoiceState(ctx, blkWithStateBadAtt.Block.Slot, r, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, cp, cp)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 	util.SaveBlock(t, ctx, beaconDB, blkWithStateBadAtt)
@@ -139,7 +139,7 @@ func TestStore_OnAttestation_Ok_DoublyLinkedTree(t *testing.T) {
 		require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, copied, tRoot))
 		ojc := &ethpb.Checkpoint{Epoch: 0, Root: tRoot[:]}
 		ofc := &ethpb.Checkpoint{Epoch: 0, Root: tRoot[:]}
-		state, roblock, err := prepareForkchoiceState(ctx, 0, tRoot, tRoot, params.BeaconConfig().ZeroHash, ojc, ofc)
+		state, roblock, err := prepareForkchoiceState(ctx, 0, tRoot, tRoot, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, roblock))
 		require.NoError(t, service.OnAttestation(ctx, att[0], 0))
@@ -170,7 +170,7 @@ func TestService_GetRecentPreState(t *testing.T) {
 	err = s.SetFinalizedCheckpoint(cp0)
 	require.NoError(t, err)
 
-	st, root, err := prepareForkchoiceState(ctx, 31, [32]byte(ckRoot), [32]byte{}, [32]byte{'R'}, cp0, cp0)
+	st, root, err := prepareForkchoiceState(ctx, 31, [32]byte(ckRoot), [32]byte{}, [32]byte{'R'}, [32]byte{}, cp0, cp0)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, root))
 	service.head = &head{
@@ -202,7 +202,7 @@ func TestService_GetAttPreState_Concurrency(t *testing.T) {
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, s, bytesutil.ToBytes32([]byte{'A'})))
 	require.NoError(t, service.cfg.BeaconDB.SaveStateSummary(ctx, &ethpb.StateSummary{Root: ckRoot}))
 
-	st, root, err := prepareForkchoiceState(ctx, 100, [32]byte(cp1.Root), [32]byte{}, [32]byte{'R'}, cp1, cp1)
+	st, root, err := prepareForkchoiceState(ctx, 100, [32]byte(cp1.Root), [32]byte{}, [32]byte{'R'}, [32]byte{}, cp1, cp1)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, root))
 
@@ -259,7 +259,7 @@ func TestStore_SaveCheckpointState(t *testing.T) {
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, s, bytesutil.ToBytes32([]byte{'A'})))
 	require.NoError(t, service.cfg.BeaconDB.SaveStateSummary(ctx, &ethpb.StateSummary{Root: bytesutil.PadTo([]byte{'A'}, fieldparams.RootLength)}))
 
-	st, root, err := prepareForkchoiceState(ctx, 1, [32]byte(cp1.Root), [32]byte{}, [32]byte{'R'}, cp1, cp1)
+	st, root, err := prepareForkchoiceState(ctx, 1, [32]byte(cp1.Root), [32]byte{}, [32]byte{'R'}, [32]byte{}, cp1, cp1)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, root))
 	s1, err := service.getAttPreState(ctx, cp1)
@@ -273,7 +273,7 @@ func TestStore_SaveCheckpointState(t *testing.T) {
 	_, err = service.getAttPreState(ctx, cp2)
 	require.ErrorContains(t, "epoch 2 root 0x4200000000000000000000000000000000000000000000000000000000000000: not a checkpoint in forkchoice", err)
 
-	st, root, err = prepareForkchoiceState(ctx, 33, [32]byte(cp2.Root), [32]byte(cp1.Root), [32]byte{'R'}, cp2, cp2)
+	st, root, err = prepareForkchoiceState(ctx, 33, [32]byte(cp2.Root), [32]byte(cp1.Root), [32]byte{'R'}, [32]byte{}, cp2, cp2)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, root))
 
@@ -298,7 +298,7 @@ func TestStore_SaveCheckpointState(t *testing.T) {
 	cp3 := &ethpb.Checkpoint{Epoch: 1, Root: bytesutil.PadTo([]byte{'C'}, fieldparams.RootLength)}
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, s, bytesutil.ToBytes32([]byte{'C'})))
 	require.NoError(t, service.cfg.BeaconDB.SaveStateSummary(ctx, &ethpb.StateSummary{Root: bytesutil.PadTo([]byte{'C'}, fieldparams.RootLength)}))
-	st, root, err = prepareForkchoiceState(ctx, 31, [32]byte(cp3.Root), [32]byte(cp2.Root), [32]byte{'P'}, cp2, cp2)
+	st, root, err = prepareForkchoiceState(ctx, 31, [32]byte(cp3.Root), [32]byte(cp2.Root), [32]byte{'P'}, [32]byte{}, cp2, cp2)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, root))
 
@@ -318,7 +318,7 @@ func TestStore_UpdateCheckpointState(t *testing.T) {
 	require.NoError(t, err)
 	checkpoint := &ethpb.Checkpoint{Epoch: epoch, Root: r1[:]}
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, baseState, bytesutil.ToBytes32(checkpoint.Root)))
-	st, roblock, err := prepareForkchoiceState(ctx, blk.Block.Slot, r1, [32]byte{}, params.BeaconConfig().ZeroHash, checkpoint, checkpoint)
+	st, roblock, err := prepareForkchoiceState(ctx, blk.Block.Slot, r1, [32]byte{}, params.BeaconConfig().ZeroHash, [32]byte{}, checkpoint, checkpoint)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 	returned, err := service.getAttPreState(ctx, checkpoint)
@@ -336,7 +336,7 @@ func TestStore_UpdateCheckpointState(t *testing.T) {
 	require.NoError(t, err)
 	newCheckpoint := &ethpb.Checkpoint{Epoch: epoch, Root: r2[:]}
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, baseState, bytesutil.ToBytes32(newCheckpoint.Root)))
-	st, roblock, err = prepareForkchoiceState(ctx, blk.Block.Slot, r2, r1, params.BeaconConfig().ZeroHash, newCheckpoint, newCheckpoint)
+	st, roblock, err = prepareForkchoiceState(ctx, blk.Block.Slot, r2, r1, params.BeaconConfig().ZeroHash, [32]byte{}, newCheckpoint, newCheckpoint)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, roblock))
 	returned, err = service.getAttPreState(ctx, newCheckpoint)

beacon-chain/blockchain/process_block.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
-	"github.com/prysmaticlabs/go-bitfield"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/blocks"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
 	coreTime "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/time"
@@ -16,7 +15,6 @@ import (
 	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/config/features"
-	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	consensusblocks "github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
@@ -66,7 +64,9 @@ func (s *Service) postBlockProcess(cfg *postBlockProcessConfig) error {
 	fcuArgs := &fcuConfig{}
 
 	if s.inRegularSync() {
-		defer s.handleSecondFCUCall(cfg, fcuArgs)
+		if cfg.roblock.Version() < version.EPBS {
+			defer s.handleSecondFCUCall(cfg, fcuArgs)
+		}
 	}
 	if features.Get().EnableLightClient && slots.ToEpoch(s.CurrentSlot()) >= params.BeaconConfig().AltairForkEpoch {
 		defer s.processLightClientUpdates(cfg)
@@ -104,6 +104,18 @@ func (s *Service) postBlockProcess(cfg *postBlockProcessConfig) error {
 		s.logNonCanonicalBlockReceived(cfg.roblock.Root(), cfg.headRoot)
 		return nil
 	}
+	if cfg.roblock.Version() >= version.EPBS {
+		if err := s.saveHead(ctx, cfg.headRoot, cfg.roblock, cfg.postState); err != nil {
+			log.WithError(err).Error("could not save head")
+		}
+		if err := s.pruneAttsFromPool(cfg.roblock); err != nil {
+			log.WithError(err).Error("could not prune attestations from pool")
+		}
+
+		// update the NSC and handle epoch boundaries here since we do
+		// not send FCU at all
+		return s.updateCachesPostBlockProcessing(cfg)
+	}
 	if err := s.getFCUArgs(cfg, fcuArgs); err != nil {
 		log.WithError(err).Error("Could not get forkchoice update argument")
 		return nil
@@ -370,7 +382,7 @@ func (s *Service) handleEpochBoundary(ctx context.Context, slot primitives.Slot,
 func (s *Service) handleBlockAttestations(ctx context.Context, blk interfaces.ReadOnlyBeaconBlock, st state.BeaconState) error {
 	// Feed in block's attestations to fork choice store.
 	for _, a := range blk.Body().Attestations() {
-		committees, err := helpers.AttestationCommitteesFromState(ctx, st, a)
+		committees, err := helpers.AttestationCommittees(ctx, st, a)
 		if err != nil {
 			return err
 		}
@@ -380,7 +392,7 @@ func (s *Service) handleBlockAttestations(ctx context.Context, blk interfaces.Re
 		}
 		r := bytesutil.ToBytes32(a.GetData().BeaconBlockRoot)
 		if s.cfg.ForkChoiceStore.HasNode(r) {
-			s.cfg.ForkChoiceStore.ProcessAttestation(ctx, indices, r, a.GetData().Target.Epoch)
+			s.cfg.ForkChoiceStore.ProcessAttestation(ctx, indices, r, a.GetData().Slot)
 		} else if features.Get().EnableExperimentalAttestationPool {
 			if err = s.cfg.AttestationCache.Add(a); err != nil {
 				return err
@@ -421,95 +433,24 @@ func (s *Service) savePostStateInfo(ctx context.Context, r [32]byte, b interface
 	return nil
 }
 
-// pruneAttsFromPool removes these attestations from the attestation pool
-// which are covered by attestations from the received block.
-func (s *Service) pruneAttsFromPool(ctx context.Context, headState state.BeaconState, headBlock interfaces.ReadOnlySignedBeaconBlock) error {
-	for _, att := range headBlock.Block().Body().Attestations() {
-		if err := s.pruneCoveredAttsFromPool(ctx, headState, att); err != nil {
-			log.WithError(err).Warn("Could not prune attestations covered by a received block's attestation")
-		}
-	}
-	return nil
-}
-
-func (s *Service) pruneCoveredAttsFromPool(ctx context.Context, headState state.BeaconState, att ethpb.Att) error {
-	switch {
-	case !att.IsAggregated():
-		return s.cfg.AttPool.DeleteUnaggregatedAttestation(att)
-	case att.Version() == version.Phase0:
+// This removes the attestations in block `b` from the attestation mem pool.
+func (s *Service) pruneAttsFromPool(headBlock interfaces.ReadOnlySignedBeaconBlock) error {
+	atts := headBlock.Block().Body().Attestations()
+	for _, att := range atts {
 		if features.Get().EnableExperimentalAttestationPool {
-			return errors.Wrap(s.cfg.AttestationCache.DeleteCovered(att), "could not delete covered attestation")
-		}
-		return errors.Wrap(s.cfg.AttPool.DeleteAggregatedAttestation(att), "could not delete aggregated attestation")
-	default:
-		return s.pruneCoveredElectraAttsFromPool(ctx, headState, att)
-	}
-}
-
-// pruneCoveredElectraAttsFromPool handles removing aggregated Electra attestations from the pool after receiving a block.
-// Because in Electra block attestations can combine aggregates for multiple committees, comparing attestation bits
-// of a block attestation with attestations bits of an aggregate can cause unexpected results, leading to covered
-// aggregates not being removed from the pool.
-//
-// To make sure aggregates are removed, we decompose the block attestation into dummy aggregates, with each
-// aggregate accounting for one committee. This allows us to compare aggregates in the same way it's done for
-// Phase0. Even though we can't provide a valid signature for the dummy aggregate, it does not matter because
-// signatures play no part in pruning attestations.
-func (s *Service) pruneCoveredElectraAttsFromPool(ctx context.Context, headState state.BeaconState, att ethpb.Att) error {
-	if att.Version() == version.Phase0 {
-		log.Error("Called pruneCoveredElectraAttsFromPool with a Phase0 attestation")
-		return nil
-	}
-
-	// We don't want to recompute committees. If they are not cached already,
-	// we allow attestations to stay in the pool. If these attestations are
-	// included in a later block, they will be redundant. But given that
-	// they were not cached in the first place, it's unlikely that they
-	// will be chosen into a block.
-	ok, committees, err := helpers.AttestationCommitteesFromCache(ctx, headState, att)
-	if err != nil {
-		return errors.Wrap(err, "could not get attestation committees")
-	}
-	if !ok {
-		log.Debug("Attestation committees are not cached. Skipping attestation pruning.")
-		return nil
-	}
-
-	committeeIndices := att.CommitteeBitsVal().BitIndices()
-	offset := uint64(0)
-
-	// Sanity check as this should never happen
-	if len(committeeIndices) != len(committees) {
-		return errors.New("committee indices and committees have different lengths")
-	}
-
-	for i, c := range committees {
-		ab := bitfield.NewBitlist(uint64(len(c)))
-		for j := uint64(0); j < uint64(len(c)); j++ {
-			ab.SetBitAt(j, att.GetAggregationBits().BitAt(j+offset))
-		}
-
-		cb := primitives.NewAttestationCommitteeBits()
-		cb.SetBitAt(uint64(committeeIndices[i]), true)
-
-		a := &ethpb.AttestationElectra{
-			AggregationBits: ab,
-			Data:            att.GetData(),
-			CommitteeBits:   cb,
-			Signature:       make([]byte, fieldparams.BLSSignatureLength),
-		}
-
-		if features.Get().EnableExperimentalAttestationPool {
-			if err = s.cfg.AttestationCache.DeleteCovered(a); err != nil {
-				return errors.Wrap(err, "could not delete covered attestation")
+			if err := s.cfg.AttestationCache.DeleteCovered(att); err != nil {
+				return errors.Wrap(err, "could not delete attestation")
+			}
+		} else if att.IsAggregated() {
+			if err := s.cfg.AttPool.DeleteAggregatedAttestation(att); err != nil {
+				return err
+			}
+		} else {
+			if err := s.cfg.AttPool.DeleteUnaggregatedAttestation(att); err != nil {
+				return err
 			}
-		} else if err = s.cfg.AttPool.DeleteAggregatedAttestation(a); err != nil {
-			return errors.Wrap(err, "could not delete aggregated attestation")
 		}
-
-		offset += uint64(len(c))
 	}
-
 	return nil
 }
 
@@ -561,9 +502,15 @@ func (s *Service) runLateBlockTasks() {
 
 	attThreshold := params.BeaconConfig().SecondsPerSlot / 3
 	ticker := slots.NewSlotTickerWithOffset(s.genesisTime, time.Duration(attThreshold)*time.Second, params.BeaconConfig().SecondsPerSlot)
+	epbs := params.BeaconConfig().EPBSForkEpoch
 	for {
 		select {
-		case <-ticker.C():
+		case slot := <-ticker.C():
+			if slots.ToEpoch(slot) == epbs && slot%32 == 0 {
+				ticker.Done()
+				attThreshold := params.BeaconConfig().SecondsPerSlot / 4
+				ticker = slots.NewSlotTickerWithOffset(s.genesisTime, time.Duration(attThreshold)*time.Second, params.BeaconConfig().SecondsPerSlot)
+			}
 			s.lateBlockTasks(s.ctx)
 		case <-s.ctx.Done():
 			log.Debug("Context closed, exiting routine")
@@ -585,11 +532,17 @@ func missingIndices(bs *filesystem.BlobStorage, root [32]byte, expected [][]byte
 	if len(expected) > maxBlobsPerBlock {
 		return nil, errMaxBlobsExceeded
 	}
-	indices := bs.Summary(root)
+	indices, err := bs.Indices(root, slot)
+	if err != nil {
+		return nil, err
+	}
 	missing := make(map[uint64]struct{}, len(expected))
 	for i := range expected {
-		if len(expected[i]) > 0 && !indices.HasIndex(uint64(i)) {
-			missing[uint64(i)] = struct{}{}
+		ui := uint64(i)
+		if len(expected[i]) > 0 {
+			if !indices[i] {
+				missing[ui] = struct{}{}
+			}
 		}
 	}
 	return missing, nil
@@ -733,24 +686,36 @@ func (s *Service) lateBlockTasks(ctx context.Context) {
 		return
 	}
 
-	s.headLock.RLock()
-	headBlock, err := s.headBlock()
-	if err != nil {
+	if headState.Version() >= version.EPBS {
+		bh, err := headState.LatestBlockHash()
+		if err != nil {
+			log.WithError(err).Debug("could not perform late block tasks: failed to retrieve latest block hash")
+			return
+		}
+		_, err = s.notifyForkchoiceUpdateEPBS(ctx, [32]byte(bh), attribute)
+		if err != nil {
+			log.WithError(err).Debug("could not perform late block tasks: failed to update forkchoice with engine")
+		}
+	} else {
+		s.headLock.RLock()
+		headBlock, err := s.headBlock()
+		if err != nil {
+			s.headLock.RUnlock()
+			log.WithError(err).Debug("could not perform late block tasks: failed to retrieve head block")
+			return
+		}
 		s.headLock.RUnlock()
-		log.WithError(err).Debug("could not perform late block tasks: failed to retrieve head block")
-		return
-	}
-	s.headLock.RUnlock()
 
-	fcuArgs := &fcuConfig{
-		headState:  headState,
-		headRoot:   headRoot,
-		headBlock:  headBlock,
-		attributes: attribute,
-	}
-	_, err = s.notifyForkchoiceUpdate(ctx, fcuArgs)
-	if err != nil {
-		log.WithError(err).Debug("could not perform late block tasks: failed to update forkchoice with engine")
+		fcuArgs := &fcuConfig{
+			headState:  headState,
+			headRoot:   headRoot,
+			headBlock:  headBlock,
+			attributes: attribute,
+		}
+		_, err = s.notifyForkchoiceUpdate(ctx, fcuArgs)
+		if err != nil {
+			log.WithError(err).Debug("could not perform late block tasks: failed to update forkchoice with engine")
+		}
 	}
 }
 

beacon-chain/blockchain/process_block_helpers.go

@@ -7,12 +7,12 @@ import (
 	"strings"
 	"time"
 
+	lightclient "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/light-client"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed"
 	statefeed "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed/state"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
-	lightclient "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/light-client"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/transition"
 	doublylinkedtree "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/doubly-linked-tree"
 	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
@@ -368,7 +368,31 @@ func (s *Service) getBlockPreState(ctx context.Context, b interfaces.ReadOnlyBea
 		return nil, err
 	}
 
-	preState, err := s.cfg.StateGen.StateByRoot(ctx, b.ParentRoot())
+	parentRoot := b.ParentRoot()
+	s.ForkChoicer().RLock()
+	slot, err := s.ForkChoicer().Slot(parentRoot)
+	s.ForkChoicer().RUnlock()
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get slot for parent root")
+	}
+	if slots.ToEpoch(slot) >= params.BeaconConfig().EPBSForkEpoch {
+		s.ForkChoicer().RLock()
+		parentHash := s.ForkChoicer().HashForBlockRoot(parentRoot)
+		s.ForkChoicer().RUnlock()
+		signedBid, err := b.Body().SignedExecutionPayloadHeader()
+		if err != nil {
+			return nil, errors.Wrap(err, "could not get signed execution payload header")
+		}
+		bid, err := signedBid.Header()
+		if err != nil {
+			return nil, errors.Wrap(err, "could not get execution payload header")
+		}
+		if parentHash == bid.ParentBlockHash() {
+			// It's based on full, use the state by hash
+			parentRoot = parentHash
+		}
+	}
+	preState, err := s.cfg.StateGen.StateByRoot(ctx, parentRoot)
 	if err != nil {
 		return nil, errors.Wrapf(err, "could not get pre state for slot %d", b.Slot())
 	}
@@ -552,8 +576,7 @@ func (s *Service) fillInForkChoiceMissingBlocks(ctx context.Context, signed inte
 
 // inserts finalized deposits into our finalized deposit trie, needs to be
 // called in the background
-// Post-Electra: prunes all proofs and pending deposits in the cache
-func (s *Service) insertFinalizedDepositsAndPrune(ctx context.Context, fRoot [32]byte) {
+func (s *Service) insertFinalizedDeposits(ctx context.Context, fRoot [32]byte) {
 	ctx, span := trace.StartSpan(ctx, "blockChain.insertFinalizedDeposits")
 	defer span.End()
 	startTime := time.Now()
@@ -564,16 +587,6 @@ func (s *Service) insertFinalizedDepositsAndPrune(ctx context.Context, fRoot [32
 		log.WithError(err).Error("could not fetch finalized state")
 		return
 	}
-
-	// Check if we should prune all pending deposits.
-	// In post-Electra(after the legacy deposit mechanism is deprecated),
-	// we can prune all pending deposits in the deposit cache.
-	// See: https://eips.ethereum.org/EIPS/eip-6110#eth1data-poll-deprecation
-	if helpers.DepositRequestsStarted(finalizedState) {
-		s.pruneAllPendingDepositsAndProofs(ctx)
-		return
-	}
-
 	// We update the cache up to the last deposit index in the finalized block's state.
 	// We can be confident that these deposits will be included in some block
 	// because the Eth1 follow distance makes such long-range reorgs extremely unlikely.
@@ -602,12 +615,6 @@ func (s *Service) insertFinalizedDepositsAndPrune(ctx context.Context, fRoot [32
 	log.WithField("duration", time.Since(startTime).String()).Debugf("Finalized deposit insertion completed at index %d", finalizedEth1DepIdx)
 }
 
-// pruneAllPendingDepositsAndProofs prunes all proofs and pending deposits in the cache.
-func (s *Service) pruneAllPendingDepositsAndProofs(ctx context.Context) {
-	s.cfg.DepositCache.PruneAllPendingDeposits(ctx)
-	s.cfg.DepositCache.PruneAllProofs(ctx)
-}
-
 // This ensures that the input root defaults to using genesis root instead of zero hashes. This is needed for handling
 // fork choice justification routine.
 func (s *Service) ensureRootNotZeros(root [32]byte) [32]byte {

beacon-chain/blockchain/process_block_test.go

@@ -12,10 +12,8 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	gethtypes "github.com/ethereum/go-ethereum/core/types"
 	"github.com/pkg/errors"
-	"github.com/prysmaticlabs/go-bitfield"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/cache"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/blocks"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
 	lightClient "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/light-client"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/signing"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/transition"
@@ -27,7 +25,6 @@ import (
 	mockExecution "github.com/prysmaticlabs/prysm/v5/beacon-chain/execution/testing"
 	doublylinkedtree "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/doubly-linked-tree"
 	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/operations/attestations/kv"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/config/features"
 	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
@@ -48,90 +45,6 @@ import (
 	logTest "github.com/sirupsen/logrus/hooks/test"
 )
 
-func Test_pruneAttsFromPool_Electra(t *testing.T) {
-	ctx := context.Background()
-
-	params.SetupTestConfigCleanup(t)
-	cfg := params.BeaconConfig().Copy()
-	cfg.TargetCommitteeSize = 8
-	params.OverrideBeaconConfig(cfg)
-
-	s := Service{
-		cfg: &config{
-			AttPool: kv.NewAttCaches(),
-		},
-	}
-
-	data := &ethpb.AttestationData{
-		BeaconBlockRoot: make([]byte, 32),
-		Source:          &ethpb.Checkpoint{Root: make([]byte, 32)},
-		Target:          &ethpb.Checkpoint{Root: make([]byte, 32)},
-	}
-
-	cb := primitives.NewAttestationCommitteeBits()
-	cb.SetBitAt(0, true)
-	att1 := &ethpb.AttestationElectra{
-		AggregationBits: bitfield.Bitlist{0b11110111, 0b00000001},
-		Data:            data,
-		Signature:       make([]byte, 96),
-		CommitteeBits:   cb,
-	}
-
-	cb = primitives.NewAttestationCommitteeBits()
-	cb.SetBitAt(1, true)
-	att2 := &ethpb.AttestationElectra{
-		AggregationBits: bitfield.Bitlist{0b11110111, 0b00000001},
-		Data:            data,
-		Signature:       make([]byte, 96),
-		CommitteeBits:   cb,
-	}
-
-	cb = primitives.NewAttestationCommitteeBits()
-	cb.SetBitAt(3, true)
-	att3 := &ethpb.AttestationElectra{
-		AggregationBits: bitfield.Bitlist{0b11110111, 0b00000001},
-		Data:            data,
-		Signature:       make([]byte, 96),
-		CommitteeBits:   cb,
-	}
-
-	require.NoError(t, s.cfg.AttPool.SaveAggregatedAttestation(att1))
-	require.NoError(t, s.cfg.AttPool.SaveAggregatedAttestation(att2))
-	require.NoError(t, s.cfg.AttPool.SaveAggregatedAttestation(att3))
-	require.Equal(t, 3, len(s.cfg.AttPool.AggregatedAttestations()))
-
-	cb = primitives.NewAttestationCommitteeBits()
-	cb.SetBitAt(0, true)
-	cb.SetBitAt(1, true)
-	onChainAtt := &ethpb.AttestationElectra{
-		AggregationBits: bitfield.Bitlist{0b11110111, 0b11110111, 0b00000001},
-		Data:            data,
-		Signature:       make([]byte, 96),
-		CommitteeBits:   cb,
-	}
-	bl := &ethpb.SignedBeaconBlockElectra{
-		Block: &ethpb.BeaconBlockElectra{
-			Body: &ethpb.BeaconBlockBodyElectra{
-				Attestations: []*ethpb.AttestationElectra{onChainAtt},
-			},
-		},
-		Signature: make([]byte, 96),
-	}
-	rob, err := consensusblocks.NewSignedBeaconBlock(bl)
-	require.NoError(t, err)
-	st, _ := util.DeterministicGenesisStateElectra(t, 1024)
-	committees, err := helpers.BeaconCommittees(ctx, st, 0)
-	require.NoError(t, err)
-	// Sanity check to make sure the on-chain att will be decomposed
-	// into the correct number of aggregates.
-	require.Equal(t, 4, len(committees))
-
-	require.NoError(t, s.pruneAttsFromPool(ctx, st, rob))
-	attsInPool := s.cfg.AttPool.AggregatedAttestations()
-	require.Equal(t, 1, len(attsInPool))
-	assert.DeepEqual(t, att3, attsInPool[0])
-}
-
 func TestStore_OnBlockBatch(t *testing.T) {
 	service, tr := minimalTestService(t)
 	ctx := tr.ctx
@@ -229,7 +142,7 @@ func TestFillForkChoiceMissingBlocks_CanSave(t *testing.T) {
 	// the parent of the last block inserted is the tree node.
 	fcp := &ethpb.Checkpoint{Epoch: 0, Root: service.originBlockRoot[:]}
 	r0 := bytesutil.ToBytes32(roots[0])
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, r0, service.originBlockRoot, [32]byte{}, fcp, fcp)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, r0, service.originBlockRoot, [32]byte{}, [32]byte{}, fcp, fcp)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	fcp2 := &forkchoicetypes.Checkpoint{Epoch: 0, Root: r0}
@@ -271,7 +184,7 @@ func TestFillForkChoiceMissingBlocks_RootsMatch(t *testing.T) {
 	// the parent of the last block inserted is the tree node.
 	fcp := &ethpb.Checkpoint{Epoch: 0, Root: service.originBlockRoot[:]}
 	r0 := bytesutil.ToBytes32(roots[0])
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, r0, service.originBlockRoot, [32]byte{}, fcp, fcp)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, r0, service.originBlockRoot, [32]byte{}, [32]byte{}, fcp, fcp)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	fcp2 := &forkchoicetypes.Checkpoint{Epoch: 0, Root: r0}
@@ -551,7 +464,7 @@ func TestAncestor_CanUseForkchoice(t *testing.T) {
 		beaconBlock.Block.ParentRoot = bytesutil.PadTo(b.Block.ParentRoot, 32)
 		r, err := b.Block.HashTreeRoot()
 		require.NoError(t, err)
-		st, blkRoot, err := prepareForkchoiceState(context.Background(), b.Block.Slot, r, bytesutil.ToBytes32(b.Block.ParentRoot), params.BeaconConfig().ZeroHash, ojc, ofc)
+		st, blkRoot, err := prepareForkchoiceState(context.Background(), b.Block.Slot, r, bytesutil.ToBytes32(b.Block.ParentRoot), params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, blkRoot))
 	}
@@ -591,7 +504,7 @@ func TestAncestor_CanUseDB(t *testing.T) {
 		util.SaveBlock(t, context.Background(), beaconDB, beaconBlock)
 	}
 
-	st, blkRoot, err := prepareForkchoiceState(context.Background(), 200, r200, r200, params.BeaconConfig().ZeroHash, ojc, ofc)
+	st, blkRoot, err := prepareForkchoiceState(context.Background(), 200, r200, r200, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, blkRoot))
 
@@ -810,7 +723,7 @@ func TestInsertFinalizedDeposits(t *testing.T) {
 			Signature:             zeroSig[:],
 		}, Proof: [][]byte{root}}, 100+i, int64(i), bytesutil.ToBytes32(root)))
 	}
-	service.insertFinalizedDepositsAndPrune(ctx, [32]byte{'m', 'o', 'c', 'k'})
+	service.insertFinalizedDeposits(ctx, [32]byte{'m', 'o', 'c', 'k'})
 	fDeposits, err := depositCache.FinalizedDeposits(ctx)
 	require.NoError(t, err)
 	assert.Equal(t, 7, int(fDeposits.MerkleTrieIndex()), "Finalized deposits not inserted correctly")
@@ -846,7 +759,7 @@ func TestInsertFinalizedDeposits_PrunePendingDeposits(t *testing.T) {
 			Signature:             zeroSig[:],
 		}, Proof: [][]byte{root}}, 100+i, int64(i), bytesutil.ToBytes32(root))
 	}
-	service.insertFinalizedDepositsAndPrune(ctx, [32]byte{'m', 'o', 'c', 'k'})
+	service.insertFinalizedDeposits(ctx, [32]byte{'m', 'o', 'c', 'k'})
 	fDeposits, err := depositCache.FinalizedDeposits(ctx)
 	require.NoError(t, err)
 	assert.Equal(t, 7, int(fDeposits.MerkleTrieIndex()), "Finalized deposits not inserted correctly")
@@ -886,7 +799,7 @@ func TestInsertFinalizedDeposits_MultipleFinalizedRoutines(t *testing.T) {
 	}
 	// Insert 3 deposits before hand.
 	require.NoError(t, depositCache.InsertFinalizedDeposits(ctx, 2, [32]byte{}, 0))
-	service.insertFinalizedDepositsAndPrune(ctx, [32]byte{'m', 'o', 'c', 'k'})
+	service.insertFinalizedDeposits(ctx, [32]byte{'m', 'o', 'c', 'k'})
 	fDeposits, err := depositCache.FinalizedDeposits(ctx)
 	require.NoError(t, err)
 	assert.Equal(t, 5, int(fDeposits.MerkleTrieIndex()), "Finalized deposits not inserted correctly")
@@ -897,7 +810,7 @@ func TestInsertFinalizedDeposits_MultipleFinalizedRoutines(t *testing.T) {
 	}
 
 	// Insert New Finalized State with higher deposit count.
-	service.insertFinalizedDepositsAndPrune(ctx, [32]byte{'m', 'o', 'c', 'k', '2'})
+	service.insertFinalizedDeposits(ctx, [32]byte{'m', 'o', 'c', 'k', '2'})
 	fDeposits, err = depositCache.FinalizedDeposits(ctx)
 	require.NoError(t, err)
 	assert.Equal(t, 12, int(fDeposits.MerkleTrieIndex()), "Finalized deposits not inserted correctly")
@@ -927,7 +840,7 @@ func TestRemoveBlockAttestationsInPool(t *testing.T) {
 	require.NoError(t, service.cfg.AttPool.SaveAggregatedAttestations(atts))
 	wsb, err := consensusblocks.NewSignedBeaconBlock(b)
 	require.NoError(t, err)
-	require.NoError(t, service.pruneAttsFromPool(context.Background(), nil /* state not needed pre-Electra */, wsb))
+	require.NoError(t, service.pruneAttsFromPool(wsb))
 	require.Equal(t, 0, service.cfg.AttPool.AggregatedAttestationCount())
 }
 
@@ -1240,7 +1153,7 @@ func TestOnBlock_ProcessBlocksParallel(t *testing.T) {
 	logHook := logTest.NewGlobal()
 	for i := 0; i < 10; i++ {
 		fc := &ethpb.Checkpoint{}
-		st, blkRoot, err := prepareForkchoiceState(ctx, 0, wsb1.Block().ParentRoot(), [32]byte{}, [32]byte{}, fc, fc)
+		st, blkRoot, err := prepareForkchoiceState(ctx, 0, wsb1.Block().ParentRoot(), [32]byte{}, [32]byte{}, [32]byte{}, fc, fc)
 		require.NoError(t, err)
 		require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, st, blkRoot))
 		var wg sync.WaitGroup
@@ -2126,7 +2039,7 @@ func TestNoViableHead_Reboot(t *testing.T) {
 	require.Equal(t, genesisRoot, bytesutil.ToBytes32(headRoot))
 	optimistic, err := service.IsOptimistic(ctx)
 	require.NoError(t, err)
-	require.Equal(t, true, optimistic)
+	require.Equal(t, false, optimistic)
 
 	// Check that the node's justified checkpoint does not agree with the
 	// last valid state's justified checkpoint
@@ -2384,7 +2297,7 @@ func TestMissingIndices(t *testing.T) {
 	for _, c := range cases {
 		bm, bs := filesystem.NewEphemeralBlobStorageWithMocker(t)
 		t.Run(c.name, func(t *testing.T) {
-			require.NoError(t, bm.CreateFakeIndices(c.root, 0, c.present...))
+			require.NoError(t, bm.CreateFakeIndices(c.root, c.present...))
 			missing, err := missingIndices(bs, c.root, c.expected, 0)
 			if c.err != nil {
 				require.ErrorIs(t, err, c.err)

beacon-chain/blockchain/receive_attestation.go

@@ -11,6 +11,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/config/features"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
+	payloadattribute "github.com/prysmaticlabs/prysm/v5/consensus-types/payload-attribute"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
 	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
 	"github.com/prysmaticlabs/prysm/v5/monitoring/tracing/trace"
@@ -148,15 +149,35 @@ func (s *Service) UpdateHead(ctx context.Context, proposingSlot primitives.Slot)
 		return
 	}
 	newAttHeadElapsedTime.Observe(float64(time.Since(start).Milliseconds()))
+	var attributes payloadattribute.Attributer
+	if s.inRegularSync() {
+		attributes = s.getPayloadAttribute(ctx, headState, proposingSlot, newHeadRoot[:])
+	}
+	if headState.Version() >= version.EPBS {
+		bh, err := headState.LatestBlockHash()
+		if err != nil {
+			log.WithError(err).Error("could not get latest block hash")
+			return
+		}
+		_, err = s.notifyForkchoiceUpdateEPBS(ctx, [32]byte(bh), attributes)
+		if err != nil {
+			log.WithError(err).Error("could not notify forkchoice update")
+		}
+		if err := s.saveHead(ctx, newHeadRoot, headBlock, headState); err != nil {
+			log.WithError(err).Error("could not save head")
+			return
+		}
+		if err := s.pruneAttsFromPool(headBlock); err != nil {
+			log.WithError(err).Error("could not prune attestations from pool")
+		}
+		return
+	}
 	fcuArgs := &fcuConfig{
 		headState:     headState,
 		headRoot:      newHeadRoot,
 		headBlock:     headBlock,
 		proposingSlot: proposingSlot,
 	}
-	if s.inRegularSync() {
-		fcuArgs.attributes = s.getPayloadAttribute(ctx, headState, proposingSlot, newHeadRoot[:])
-	}
 	if fcuArgs.attributes != nil && s.shouldOverrideFCU(newHeadRoot, proposingSlot) {
 		return
 	}
@@ -184,7 +205,7 @@ func (s *Service) processAttestations(ctx context.Context, disparity time.Durati
 		}
 
 		hasState := s.cfg.BeaconDB.HasStateSummary(ctx, bytesutil.ToBytes32(a.GetData().BeaconBlockRoot))
-		hasBlock := s.hasBlock(ctx, bytesutil.ToBytes32(a.GetData().BeaconBlockRoot))
+		hasBlock := s.chainHasBlock(ctx, bytesutil.ToBytes32(a.GetData().BeaconBlockRoot))
 		if !(hasState && hasBlock) {
 			continue
 		}

beacon-chain/blockchain/receive_attestation_test.go

@@ -42,11 +42,11 @@ func TestVerifyLMDFFGConsistent(t *testing.T) {
 
 	f := service.cfg.ForkChoiceStore
 	fc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, r32, err := prepareForkchoiceState(ctx, 32, [32]byte{'a'}, params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, fc, fc)
+	state, r32, err := prepareForkchoiceState(ctx, 32, [32]byte{'a'}, params.BeaconConfig().ZeroHash, params.BeaconConfig().ZeroHash, [32]byte{}, fc, fc)
 	require.NoError(t, err)
 	require.NoError(t, f.InsertNode(ctx, state, r32))
 
-	state, r33, err := prepareForkchoiceState(ctx, 33, [32]byte{'b'}, r32.Root(), params.BeaconConfig().ZeroHash, fc, fc)
+	state, r33, err := prepareForkchoiceState(ctx, 33, [32]byte{'b'}, r32.Root(), params.BeaconConfig().ZeroHash, [32]byte{}, fc, fc)
 	require.NoError(t, err)
 	require.NoError(t, f.InsertNode(ctx, state, r33))
 
@@ -82,7 +82,7 @@ func TestProcessAttestations_Ok(t *testing.T) {
 	require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, copied, tRoot))
 	ofc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
 	ojc := &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
-	state, blkRoot, err := prepareForkchoiceState(ctx, 0, tRoot, tRoot, params.BeaconConfig().ZeroHash, ojc, ofc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 0, tRoot, tRoot, params.BeaconConfig().ZeroHash, [32]byte{}, ojc, ofc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	attsToSave := make([]ethpb.Att, len(atts))
@@ -142,7 +142,7 @@ func TestService_ProcessAttestationsAndUpdateHead(t *testing.T) {
 	r, err := b.Block.HashTreeRoot()
 	require.NoError(t, err)
 	util.SaveBlock(t, ctx, service.cfg.BeaconDB, b)
-	state, blkRoot, err := prepareForkchoiceState(ctx, 2, r, service.originBlockRoot, [32]byte{'b'}, ojc, ojc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 2, r, service.originBlockRoot, [32]byte{'b'}, [32]byte{}, ojc, ojc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	require.Equal(t, 3, fcs.NodeCount())
@@ -191,7 +191,7 @@ func TestService_UpdateHead_NoAtts(t *testing.T) {
 	r, err := b.Block.HashTreeRoot()
 	require.NoError(t, err)
 	util.SaveBlock(t, ctx, service.cfg.BeaconDB, b)
-	state, blkRoot, err := prepareForkchoiceState(ctx, 2, r, service.originBlockRoot, [32]byte{'b'}, ojc, ojc)
+	state, blkRoot, err := prepareForkchoiceState(ctx, 2, r, service.originBlockRoot, [32]byte{'b'}, [32]byte{}, ojc, ojc)
 	require.NoError(t, err)
 	require.NoError(t, service.cfg.ForkChoiceStore.InsertNode(ctx, state, blkRoot))
 	require.Equal(t, 3, fcs.NodeCount())

beacon-chain/blockchain/receive_block.go

@@ -7,7 +7,6 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/electra"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed"
 	statefeed "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed/state"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
@@ -16,6 +15,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/das"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/slasher/types"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
+	"github.com/prysmaticlabs/prysm/v5/config/features"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
@@ -39,10 +39,18 @@ var epochsSinceFinalityExpandCache = primitives.Epoch(4)
 // BlockReceiver interface defines the methods of chain service for receiving and processing new blocks.
 type BlockReceiver interface {
 	ReceiveBlock(ctx context.Context, block interfaces.ReadOnlySignedBeaconBlock, blockRoot [32]byte, avs das.AvailabilityStore) error
+	ReceiveExecutionPayloadEnvelope(ctx context.Context, env interfaces.ROSignedExecutionPayloadEnvelope, avs das.AvailabilityStore) error
 	ReceiveBlockBatch(ctx context.Context, blocks []blocks.ROBlock, avs das.AvailabilityStore) error
 	HasBlock(ctx context.Context, root [32]byte) bool
 	RecentBlockSlot(root [32]byte) (primitives.Slot, error)
 	BlockBeingSynced([32]byte) bool
+	PayloadBeingSynced([32]byte) bool
+}
+
+// PayloadAttestationReceiver defines methods of the chain service for receiving
+// and processing new payload attestations and payload attestation messages
+type PayloadAttestationReceiver interface {
+	ReceivePayloadAttestationMessage(ctx context.Context, a *ethpb.PayloadAttestationMessage) error
 }
 
 // BlobReceiver interface defines the methods of chain service for receiving new
@@ -51,6 +59,11 @@ type BlobReceiver interface {
 	ReceiveBlob(context.Context, blocks.VerifiedROBlob) error
 }
 
+// ExecutionPayloadReceiver interface defines the methods of chain service for receiving `ROExecutionPayloadEnvelope`.
+type ExecutionPayloadReceiver interface {
+	ReceiveExecutionPayloadEnvelope(ctx context.Context, envelope interfaces.ROSignedExecutionPayloadEnvelope, _ das.AvailabilityStore) error
+}
+
 // SlashingReceiver interface defines the methods of chain service for receiving validated slashing over the wire.
 type SlashingReceiver interface {
 	ReceiveAttesterSlashing(ctx context.Context, slashing ethpb.AttSlashing)
@@ -87,14 +100,30 @@ func (s *Service) ReceiveBlock(ctx context.Context, block interfaces.ReadOnlySig
 	if err != nil {
 		return err
 	}
-
-	postState, isValidPayload, err := s.validateExecutionAndConsensus(ctx, preState, roblock)
-	if err != nil {
-		return err
-	}
-	daWaitedTime, err := s.handleDA(ctx, blockCopy, blockRoot, avs)
-	if err != nil {
-		return err
+	var postState state.BeaconState
+	var isValidPayload bool
+	var daWaitedTime time.Duration
+	if blockCopy.Version() >= version.EPBS {
+		postState, err = s.validateStateTransition(ctx, preState, roblock)
+		if err != nil {
+			return errors.Wrap(err, "could not validate state transition")
+		}
+		optimistic, err := s.IsOptimisticForRoot(ctx, roblock.Block().ParentRoot())
+		if err != nil {
+			return errors.Wrap(err, "could not check if parent is optimistic")
+		}
+		// if the parent is not optimistic then we can set the block as
+		// not optimistic.
+		isValidPayload = !optimistic
+	} else {
+		postState, isValidPayload, err = s.validateExecutionAndConsensus(ctx, preState, roblock)
+		if err != nil {
+			return err
+		}
+		daWaitedTime, err = s.handleDA(ctx, blockCopy, blockRoot, avs)
+		if err != nil {
+			return err
+		}
 	}
 	// Defragment the state before continuing block processing.
 	s.defragmentState(postState)
@@ -120,7 +149,7 @@ func (s *Service) ReceiveBlock(ctx context.Context, block interfaces.ReadOnlySig
 		return err
 	}
 	// If slasher is configured, forward the attestations in the block via an event feed for processing.
-	if s.slasherEnabled {
+	if features.Get().EnableSlasher {
 		go s.sendBlockAttestationsToSlasher(blockCopy, preState)
 	}
 
@@ -278,10 +307,9 @@ func (s *Service) executePostFinalizationTasks(ctx context.Context, finalizedSta
 	go func() {
 		s.sendNewFinalizedEvent(ctx, finalizedState)
 	}()
-
 	depCtx, cancel := context.WithTimeout(context.Background(), depositDeadline)
 	go func() {
-		s.insertFinalizedDepositsAndPrune(depCtx, finalized.Root)
+		s.insertFinalizedDeposits(depCtx, finalized.Root)
 		cancel()
 	}()
 }
@@ -469,7 +497,7 @@ func (s *Service) validateStateTransition(ctx context.Context, preState state.Be
 	stateTransitionStartTime := time.Now()
 	postState, err := transition.ExecuteStateTransition(ctx, preState, signed)
 	if err != nil {
-		if ctx.Err() != nil || electra.IsExecutionRequestError(err) {
+		if ctx.Err() != nil {
 			return nil, err
 		}
 		return nil, invalidBlock{error: err}
@@ -547,7 +575,7 @@ func (s *Service) sendBlockAttestationsToSlasher(signed interfaces.ReadOnlySigne
 	// is done in the background to avoid adding more load to this critical code path.
 	ctx := context.TODO()
 	for _, att := range signed.Block().Body().Attestations() {
-		committees, err := helpers.AttestationCommitteesFromState(ctx, preState, att)
+		committees, err := helpers.AttestationCommittees(ctx, preState, att)
 		if err != nil {
 			log.WithError(err).Error("Could not get attestation committees")
 			return

beacon-chain/blockchain/receive_block_test.go

@@ -455,81 +455,41 @@ func Test_executePostFinalizationTasks(t *testing.T) {
 		Root:  headRoot[:],
 	}))
 	require.NoError(t, headState.SetGenesisValidatorsRoot(params.BeaconConfig().ZeroHash[:]))
-	t.Run("pre deposit request", func(t *testing.T) {
-		require.NoError(t, headState.SetEth1DepositIndex(1))
-		s, tr := minimalTestService(t, WithFinalizedStateAtStartUp(headState))
-		ctx, beaconDB, stateGen := tr.ctx, tr.db, tr.sg
 
-		require.NoError(t, beaconDB.SaveGenesisBlockRoot(ctx, genesisRoot))
-		util.SaveBlock(t, ctx, beaconDB, genesis)
-		require.NoError(t, beaconDB.SaveState(ctx, headState, headRoot))
-		require.NoError(t, beaconDB.SaveState(ctx, headState, genesisRoot))
-		util.SaveBlock(t, ctx, beaconDB, headBlock)
-		require.NoError(t, beaconDB.SaveFinalizedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
+	s, tr := minimalTestService(t, WithFinalizedStateAtStartUp(headState))
+	ctx, beaconDB, stateGen := tr.ctx, tr.db, tr.sg
 
-		require.NoError(t, err)
-		require.NoError(t, stateGen.SaveState(ctx, headRoot, headState))
-		require.NoError(t, beaconDB.SaveLastValidatedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
+	require.NoError(t, beaconDB.SaveGenesisBlockRoot(ctx, genesisRoot))
+	util.SaveBlock(t, ctx, beaconDB, genesis)
+	require.NoError(t, beaconDB.SaveState(ctx, headState, headRoot))
+	require.NoError(t, beaconDB.SaveState(ctx, headState, genesisRoot))
+	util.SaveBlock(t, ctx, beaconDB, headBlock)
+	require.NoError(t, beaconDB.SaveFinalizedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
 
-		notifier := &blockchainTesting.MockStateNotifier{RecordEvents: true}
-		s.cfg.StateNotifier = notifier
-		s.executePostFinalizationTasks(s.ctx, headState)
+	require.NoError(t, err)
+	require.NoError(t, stateGen.SaveState(ctx, headRoot, headState))
+	require.NoError(t, beaconDB.SaveLastValidatedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
 
-		time.Sleep(1 * time.Second) // sleep for a second because event is in a separate go routine
-		require.Equal(t, 1, len(notifier.ReceivedEvents()))
-		e := notifier.ReceivedEvents()[0]
-		assert.Equal(t, statefeed.FinalizedCheckpoint, int(e.Type))
-		fc, ok := e.Data.(*ethpbv1.EventFinalizedCheckpoint)
-		require.Equal(t, true, ok, "event has wrong data type")
-		assert.Equal(t, primitives.Epoch(123), fc.Epoch)
-		assert.DeepEqual(t, headRoot[:], fc.Block)
-		assert.DeepEqual(t, finalizedStRoot[:], fc.State)
-		assert.Equal(t, false, fc.ExecutionOptimistic)
+	notifier := &blockchainTesting.MockStateNotifier{RecordEvents: true}
+	s.cfg.StateNotifier = notifier
+	s.executePostFinalizationTasks(s.ctx, headState)
 
-		// check the cache
-		index, ok := headState.ValidatorIndexByPubkey(bytesutil.ToBytes48(key))
-		require.Equal(t, true, ok)
-		require.Equal(t, primitives.ValidatorIndex(0), index) // first index
+	time.Sleep(1 * time.Second) // sleep for a second because event is in a separate go routine
+	require.Equal(t, 1, len(notifier.ReceivedEvents()))
+	e := notifier.ReceivedEvents()[0]
+	assert.Equal(t, statefeed.FinalizedCheckpoint, int(e.Type))
+	fc, ok := e.Data.(*ethpbv1.EventFinalizedCheckpoint)
+	require.Equal(t, true, ok, "event has wrong data type")
+	assert.Equal(t, primitives.Epoch(123), fc.Epoch)
+	assert.DeepEqual(t, headRoot[:], fc.Block)
+	assert.DeepEqual(t, finalizedStRoot[:], fc.State)
+	assert.Equal(t, false, fc.ExecutionOptimistic)
 
-		// check deposit
-		require.LogsContain(t, logHook, "Finalized deposit insertion completed at index")
-	})
-	t.Run("deposit requests started", func(t *testing.T) {
-		require.NoError(t, headState.SetEth1DepositIndex(1))
-		require.NoError(t, headState.SetDepositRequestsStartIndex(1))
-		s, tr := minimalTestService(t, WithFinalizedStateAtStartUp(headState))
-		ctx, beaconDB, stateGen := tr.ctx, tr.db, tr.sg
-
-		require.NoError(t, beaconDB.SaveGenesisBlockRoot(ctx, genesisRoot))
-		util.SaveBlock(t, ctx, beaconDB, genesis)
-		require.NoError(t, beaconDB.SaveState(ctx, headState, headRoot))
-		require.NoError(t, beaconDB.SaveState(ctx, headState, genesisRoot))
-		util.SaveBlock(t, ctx, beaconDB, headBlock)
-		require.NoError(t, beaconDB.SaveFinalizedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
-
-		require.NoError(t, err)
-		require.NoError(t, stateGen.SaveState(ctx, headRoot, headState))
-		require.NoError(t, beaconDB.SaveLastValidatedCheckpoint(ctx, &ethpb.Checkpoint{Epoch: slots.ToEpoch(finalizedSlot), Root: headRoot[:]}))
-
-		notifier := &blockchainTesting.MockStateNotifier{RecordEvents: true}
-		s.cfg.StateNotifier = notifier
-		s.executePostFinalizationTasks(s.ctx, headState)
-
-		time.Sleep(1 * time.Second) // sleep for a second because event is in a separate go routine
-		require.Equal(t, 1, len(notifier.ReceivedEvents()))
-		e := notifier.ReceivedEvents()[0]
-		assert.Equal(t, statefeed.FinalizedCheckpoint, int(e.Type))
-		fc, ok := e.Data.(*ethpbv1.EventFinalizedCheckpoint)
-		require.Equal(t, true, ok, "event has wrong data type")
-		assert.Equal(t, primitives.Epoch(123), fc.Epoch)
-		assert.DeepEqual(t, headRoot[:], fc.Block)
-		assert.DeepEqual(t, finalizedStRoot[:], fc.State)
-		assert.Equal(t, false, fc.ExecutionOptimistic)
-
-		// check the cache
-		index, ok := headState.ValidatorIndexByPubkey(bytesutil.ToBytes48(key))
-		require.Equal(t, true, ok)
-		require.Equal(t, primitives.ValidatorIndex(0), index) // first index
-	})
+	// check the cache
+	index, ok := headState.ValidatorIndexByPubkey(bytesutil.ToBytes48(key))
+	require.Equal(t, true, ok)
+	require.Equal(t, primitives.ValidatorIndex(0), index) // first index
 
+	// check deposit
+	require.LogsContain(t, logHook, "Finalized deposit insertion completed at index")
 }

beacon-chain/blockchain/receive_execution_payload_envelope.go

@@ -0,0 +1,256 @@
+package blockchain
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/epbs"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed"
+	statefeed "github.com/prysmaticlabs/prysm/v5/beacon-chain/core/feed/state"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/transition"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/das"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/execution"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	"github.com/sirupsen/logrus"
+	"go.opencensus.io/trace"
+	"golang.org/x/sync/errgroup"
+)
+
+// ReceiveExecutionPayloadEnvelope is a function that defines the operations (minus pubsub)
+// that are performed on a received execution payload envelope. The operations consist of:
+//  1. Validate the payload, apply state transition.
+//  2. Apply fork choice to the processed payload
+//  3. Save latest head info
+func (s *Service) ReceiveExecutionPayloadEnvelope(ctx context.Context, signed interfaces.ROSignedExecutionPayloadEnvelope, _ das.AvailabilityStore) error {
+	receivedTime := time.Now()
+	envelope, err := signed.Envelope()
+	if err != nil {
+		return err
+	}
+	log.Info("Receiving execution payload envelope")
+	root := envelope.BeaconBlockRoot()
+	s.payloadBeingSynced.set(envelope)
+	defer s.payloadBeingSynced.unset(root)
+
+	preState, err := s.getPayloadEnvelopePrestate(ctx, envelope)
+	if err != nil {
+		return errors.Wrap(err, "could not get prestate")
+	}
+
+	eg, _ := errgroup.WithContext(ctx)
+	eg.Go(func() error {
+		if err := epbs.ValidatePayloadStateTransition(ctx, preState, envelope); err != nil {
+			return errors.Wrap(err, "failed to validate consensus state transition function")
+		}
+		return nil
+	})
+	var isValidPayload bool
+	eg.Go(func() error {
+		var err error
+		isValidPayload, err = s.validateExecutionOnEnvelope(ctx, envelope)
+		if err != nil {
+			return errors.Wrap(err, "could not notify the engine of the new payload")
+		}
+		return nil
+	})
+
+	if err := eg.Wait(); err != nil {
+		return err
+	}
+	daStartTime := time.Now()
+	// TODO: Add DA check
+	daWaitedTime := time.Since(daStartTime)
+	dataAvailWaitedTime.Observe(float64(daWaitedTime.Milliseconds()))
+	if err := s.savePostPayload(ctx, signed, preState); err != nil {
+		return err
+	}
+	if err := s.insertPayloadEnvelope(envelope); err != nil {
+		return errors.Wrap(err, "could not insert payload to forkchoice")
+	}
+	if isValidPayload {
+		s.ForkChoicer().Lock()
+		if err := s.ForkChoicer().SetOptimisticToValid(ctx, root); err != nil {
+			s.ForkChoicer().Unlock()
+			return errors.Wrap(err, "could not set optimistic payload to valid")
+		}
+		s.ForkChoicer().Unlock()
+	}
+
+	headRoot, err := s.HeadRoot(ctx)
+	if err != nil {
+		log.WithError(err).Error("could not get headroot to compute attributes")
+		return nil
+	}
+	execution, err := envelope.Execution()
+	if err != nil {
+		log.WithError(err).Error("could not get execution data")
+		return nil
+	}
+	blockHash := [32]byte(execution.BlockHash())
+	if bytes.Equal(headRoot, root[:]) {
+		attr := s.getPayloadAttribute(ctx, preState, envelope.Slot()+1, headRoot)
+		payloadID, err := s.notifyForkchoiceUpdateEPBS(ctx, blockHash, attr)
+		if err != nil {
+			if IsInvalidBlock(err) {
+				// TODO handle the lvh here
+				return err
+			}
+			return nil
+		}
+		if attr != nil && !attr.IsEmpty() && payloadID != nil {
+			var pid [8]byte
+			copy(pid[:], payloadID[:])
+			log.WithFields(logrus.Fields{
+				"blockRoot": fmt.Sprintf("%#x", bytesutil.Trunc(headRoot)),
+				"headSlot":  envelope.Slot(),
+				"payloadID": fmt.Sprintf("%#x", bytesutil.Trunc(payloadID[:])),
+			}).Info("Forkchoice updated with payload attributes for proposal")
+			s.cfg.PayloadIDCache.Set(envelope.Slot()+1, root, pid)
+		}
+		// simply update the headstate in head
+		s.headLock.Lock()
+		s.head.state = preState.Copy()
+		s.headLock.Unlock()
+		// update the NSC with the hash for the full block, we use the block hash as the key
+		if err := transition.UpdateNextSlotCache(ctx, blockHash[:], preState); err != nil {
+			log.WithError(err).Error("could not update next slot cache with payload")
+		}
+
+	}
+	timeWithoutDaWait := time.Since(receivedTime) - daWaitedTime
+	executionEngineProcessingTime.Observe(float64(timeWithoutDaWait.Milliseconds()))
+	ex, err := envelope.Execution()
+	if err != nil {
+		return errors.Wrap(err, "could not get execution data")
+	}
+	// Send feed event
+	// Send notification of the processed block to the state feed.
+	s.cfg.StateNotifier.StateFeed().Send(&feed.Event{
+		Type: statefeed.PayloadProcessed,
+		Data: &statefeed.PayloadProcessedData{
+			Slot:                envelope.Slot(),
+			BlockRoot:           root,
+			ExecutionBlockHash:  blockHash,
+			ExecutionOptimistic: !isValidPayload,
+		},
+	})
+
+	log.WithFields(logrus.Fields{
+		"slot":       envelope.Slot(),
+		"blockRoot":  fmt.Sprintf("%#x", bytesutil.Trunc(root[:])),
+		"blockHash":  fmt.Sprintf("%#x", bytesutil.Trunc(ex.BlockHash())),
+		"ParentHash": fmt.Sprintf("%#x", bytesutil.Trunc(ex.ParentHash())),
+	}).Info("Processed execution payload envelope")
+	return nil
+}
+
+// notifyNewPayload signals execution engine on a new payload.
+// It returns true if the EL has returned VALID for the block
+func (s *Service) notifyNewEnvelope(ctx context.Context, envelope interfaces.ROExecutionPayloadEnvelope) (bool, error) {
+	ctx, span := trace.StartSpan(ctx, "blockChain.notifyNewPayload")
+	defer span.End()
+
+	payload, err := envelope.Execution()
+	if err != nil {
+		return false, errors.Wrap(err, "could not get execution payload")
+	}
+
+	versionedHashes := envelope.VersionedHashes()
+	root := envelope.BeaconBlockRoot()
+	parentRoot, err := s.ParentRoot(root)
+	if err != nil {
+		return false, errors.Wrap(err, "could not get parent block root")
+	}
+	pr := common.Hash(parentRoot)
+	requests := envelope.ExecutionRequests()
+	lastValidHash, err := s.cfg.ExecutionEngineCaller.NewPayload(ctx, payload, versionedHashes, &pr, requests)
+	switch {
+	case err == nil:
+		newPayloadValidNodeCount.Inc()
+		return true, nil
+	case errors.Is(err, execution.ErrAcceptedSyncingPayloadStatus):
+		newPayloadOptimisticNodeCount.Inc()
+		log.WithFields(logrus.Fields{
+			"payloadBlockHash": fmt.Sprintf("%#x", bytesutil.Trunc(payload.BlockHash())),
+		}).Info("Called new payload with optimistic block")
+		return false, nil
+	case errors.Is(err, execution.ErrInvalidPayloadStatus):
+		lvh := bytesutil.ToBytes32(lastValidHash)
+		return false, invalidBlock{
+			error:         ErrInvalidPayload,
+			lastValidHash: lvh,
+		}
+	default:
+		return false, errors.WithMessage(ErrUndefinedExecutionEngineError, err.Error())
+	}
+}
+
+// validateExecutionOnEnvelope notifies the engine of the incoming execution payload and returns true if the payload is valid
+func (s *Service) validateExecutionOnEnvelope(ctx context.Context, e interfaces.ROExecutionPayloadEnvelope) (bool, error) {
+	isValidPayload, err := s.notifyNewEnvelope(ctx, e)
+	if err == nil {
+		return isValidPayload, nil
+	}
+	blockRoot := e.BeaconBlockRoot()
+	parentRoot, rootErr := s.ParentRoot(blockRoot)
+	if rootErr != nil {
+		return false, errors.Wrap(rootErr, "could not get parent block root")
+	}
+	s.cfg.ForkChoiceStore.Lock()
+	err = s.handleInvalidExecutionError(ctx, err, blockRoot, parentRoot)
+	s.cfg.ForkChoiceStore.Unlock()
+	return false, err
+}
+
+func (s *Service) getPayloadEnvelopePrestate(ctx context.Context, e interfaces.ROExecutionPayloadEnvelope) (state.BeaconState, error) {
+	ctx, span := trace.StartSpan(ctx, "blockChain.getPayloadEnvelopePreState")
+	defer span.End()
+
+	// Verify incoming payload has a valid pre state.
+	root := e.BeaconBlockRoot()
+	// Verify the referred block is known to forkchoice
+	if !s.InForkchoice(root) {
+		return nil, errors.New("Cannot import execution payload envelope for unknown block")
+	}
+	if err := s.verifyBlkPreState(ctx, root); err != nil {
+		return nil, errors.Wrap(err, "could not verify payload prestate")
+	}
+
+	preState, err := s.cfg.StateGen.StateByRoot(ctx, root)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get pre state")
+	}
+	if preState == nil || preState.IsNil() {
+		return nil, errors.Wrap(err, "nil pre state")
+	}
+	return preState, nil
+}
+
+func (s *Service) savePostPayload(ctx context.Context, signed interfaces.ROSignedExecutionPayloadEnvelope, st state.BeaconState) error {
+	if err := s.cfg.BeaconDB.SaveBlindPayloadEnvelope(ctx, signed); err != nil {
+		return err
+	}
+	envelope, err := signed.Envelope()
+	if err != nil {
+		return err
+	}
+	execution, err := envelope.Execution()
+	if err != nil {
+		return err
+	}
+	r := envelope.BeaconBlockRoot()
+	if err := s.cfg.StateGen.SaveState(ctx, [32]byte(execution.BlockHash()), st); err != nil {
+		log.Warnf("Rolling back insertion of block with root %#x", r)
+		if err := s.cfg.BeaconDB.DeleteBlock(ctx, r); err != nil {
+			log.WithError(err).Errorf("Could not delete block with block root %#x", r)
+		}
+		return errors.Wrap(err, "could not save state")
+	}
+	return nil
+}

beacon-chain/blockchain/receive_execution_payload_envelope_test.go

@@ -0,0 +1,103 @@
+package blockchain
+
+import (
+	"testing"
+
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/cache"
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/das"
+	mockExecution "github.com/prysmaticlabs/prysm/v5/beacon-chain/execution/testing"
+	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
+	"github.com/prysmaticlabs/prysm/v5/testing/require"
+	"github.com/prysmaticlabs/prysm/v5/testing/util"
+	"github.com/prysmaticlabs/prysm/v5/testing/util/random"
+)
+
+func Test_getPayloadEnvelopePrestate(t *testing.T) {
+	service, tr := minimalTestService(t)
+	ctx, fcs := tr.ctx, tr.fcs
+
+	gs, _ := util.DeterministicGenesisStateEpbs(t, 32)
+	require.NoError(t, service.saveGenesisData(ctx, gs))
+	require.NoError(t, fcs.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Root: service.originBlockRoot}))
+
+	p := random.ExecutionPayloadEnvelope(t)
+	p.BeaconBlockRoot = service.originBlockRoot[:]
+	e, err := blocks.WrappedROExecutionPayloadEnvelope(p)
+	require.NoError(t, err)
+
+	_, err = service.getPayloadEnvelopePrestate(ctx, e)
+	require.NoError(t, err)
+}
+
+func Test_notifyNewEnvelope(t *testing.T) {
+	service, tr := minimalTestService(t, WithPayloadIDCache(cache.NewPayloadIDCache()))
+	ctx, fcs := tr.ctx, tr.fcs
+	gs, _ := util.DeterministicGenesisStateEpbs(t, 32)
+	require.NoError(t, service.saveGenesisData(ctx, gs))
+	require.NoError(t, fcs.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Root: service.originBlockRoot}))
+	p := random.ExecutionPayloadEnvelope(t)
+	p.BeaconBlockRoot = service.originBlockRoot[:]
+	e, err := blocks.WrappedROExecutionPayloadEnvelope(p)
+	require.NoError(t, err)
+	engine := &mockExecution.EngineClient{}
+	service.cfg.ExecutionEngineCaller = engine
+	isValidPayload, err := service.notifyNewEnvelope(ctx, e)
+	require.NoError(t, err)
+	require.Equal(t, true, isValidPayload)
+}
+
+func Test_validateExecutionOnEnvelope(t *testing.T) {
+	service, tr := minimalTestService(t, WithPayloadIDCache(cache.NewPayloadIDCache()))
+	ctx, fcs := tr.ctx, tr.fcs
+	gs, _ := util.DeterministicGenesisStateEpbs(t, 32)
+	require.NoError(t, service.saveGenesisData(ctx, gs))
+	require.NoError(t, fcs.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Root: service.originBlockRoot}))
+	p := random.ExecutionPayloadEnvelope(t)
+	p.BeaconBlockRoot = service.originBlockRoot[:]
+	e, err := blocks.WrappedROExecutionPayloadEnvelope(p)
+	require.NoError(t, err)
+	engine := &mockExecution.EngineClient{}
+	service.cfg.ExecutionEngineCaller = engine
+	isValidPayload, err := service.validateExecutionOnEnvelope(ctx, e)
+	require.NoError(t, err)
+	require.Equal(t, true, isValidPayload)
+}
+
+func Test_ReceiveExecutionPayloadEnvelope(t *testing.T) {
+	service, tr := minimalTestService(t, WithPayloadIDCache(cache.NewPayloadIDCache()))
+	ctx, fcs := tr.ctx, tr.fcs
+	gs, _ := util.DeterministicGenesisStateEpbs(t, 32)
+	require.NoError(t, service.saveGenesisData(ctx, gs))
+	require.NoError(t, fcs.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Root: service.originBlockRoot}))
+	post := gs.Copy()
+	p := &enginev1.ExecutionPayloadEnvelope{
+		Payload: &enginev1.ExecutionPayloadDeneb{
+			ParentHash: make([]byte, 32),
+			BlockHash:  make([]byte, 32),
+		},
+		BeaconBlockRoot:    service.originBlockRoot[:],
+		BlobKzgCommitments: make([][]byte, 0),
+		StateRoot:          make([]byte, 32),
+		ExecutionRequests:  &enginev1.ExecutionRequests{},
+	}
+	sp := &enginev1.SignedExecutionPayloadEnvelope{
+		Message: p,
+	}
+	e, err := blocks.WrappedROSignedExecutionPayloadEnvelope(sp)
+	require.NoError(t, err)
+	das := &das.MockAvailabilityStore{}
+
+	blockHeader := post.LatestBlockHeader()
+	prevStateRoot, err := post.HashTreeRoot(ctx)
+	require.NoError(t, err)
+	blockHeader.StateRoot = prevStateRoot[:]
+	require.NoError(t, post.SetLatestBlockHeader(blockHeader))
+	stRoot, err := post.HashTreeRoot(ctx)
+	require.NoError(t, err)
+	p.StateRoot = stRoot[:]
+	engine := &mockExecution.EngineClient{}
+	service.cfg.ExecutionEngineCaller = engine
+	require.NoError(t, service.ReceiveExecutionPayloadEnvelope(ctx, e, das))
+}

beacon-chain/blockchain/receive_payload_attestation_message.go

@@ -0,0 +1,33 @@
+package blockchain
+
+import (
+	"context"
+	"slices"
+
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+)
+
+func (s *Service) ReceivePayloadAttestationMessage(ctx context.Context, a *eth.PayloadAttestationMessage) error {
+	if err := helpers.ValidateNilPayloadAttestationMessage(a); err != nil {
+		return err
+	}
+	root := [32]byte(a.Data.BeaconBlockRoot)
+	st, err := s.HeadStateReadOnly(ctx)
+	if err != nil {
+		return err
+	}
+	ptc, err := helpers.GetPayloadTimelinessCommittee(ctx, st, a.Data.Slot)
+	if err != nil {
+		return err
+	}
+	idx := slices.Index(ptc, a.ValidatorIndex)
+	if idx == -1 {
+		return errInvalidValidatorIndex
+	}
+	if s.cfg.PayloadAttestationCache.Seen(root, uint64(primitives.ValidatorIndex(idx))) {
+		return nil
+	}
+	return s.cfg.PayloadAttestationCache.Add(a, uint64(idx))
+}

beacon-chain/blockchain/service.go

@@ -3,6 +3,7 @@
 package blockchain
 
 import (
+	"bytes"
 	"context"
 	"fmt"
 	"runtime"
@@ -22,6 +23,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/db/filesystem"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/execution"
 	f "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice"
+	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/operations/attestations"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/operations/blstoexec"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/operations/slashings"
@@ -30,6 +32,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/startup"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state/stategen"
+	"github.com/prysmaticlabs/prysm/v5/config/features"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
@@ -44,25 +47,26 @@ import (
 // Service represents a service that handles the internal
 // logic of managing the full PoS beacon chain.
 type Service struct {
-	cfg                  *config
-	ctx                  context.Context
-	cancel               context.CancelFunc
-	genesisTime          time.Time
-	head                 *head
-	headLock             sync.RWMutex
-	originBlockRoot      [32]byte // genesis root, or weak subjectivity checkpoint root, depending on how the node is initialized
-	boundaryRoots        [][32]byte
-	checkpointStateCache *cache.CheckpointStateCache
-	initSyncBlocks       map[[32]byte]interfaces.ReadOnlySignedBeaconBlock
-	initSyncBlocksLock   sync.RWMutex
-	wsVerifier           *WeakSubjectivityVerifier
-	clockSetter          startup.ClockSetter
-	clockWaiter          startup.ClockWaiter
-	syncComplete         chan struct{}
-	blobNotifiers        *blobNotifierMap
-	blockBeingSynced     *currentlySyncingBlock
-	blobStorage          *filesystem.BlobStorage
-	slasherEnabled       bool
+	cfg                           *config
+	ctx                           context.Context
+	cancel                        context.CancelFunc
+	genesisTime                   time.Time
+	head                          *head
+	headLock                      sync.RWMutex
+	originBlockRoot               [32]byte // genesis root, or weak subjectivity checkpoint root, depending on how the node is initialized
+	boundaryRoots                 [][32]byte
+	checkpointStateCache          *cache.CheckpointStateCache
+	initSyncBlocks                map[[32]byte]interfaces.ReadOnlySignedBeaconBlock
+	initSyncBlocksLock            sync.RWMutex
+	wsVerifier                    *WeakSubjectivityVerifier
+	clockSetter                   startup.ClockSetter
+	clockWaiter                   startup.ClockWaiter
+	syncComplete                  chan struct{}
+	blobNotifiers                 *blobNotifierMap
+	blockBeingSynced              *currentlySyncingBlock
+	lastPublishedLightClientEpoch primitives.Epoch
+	blobStorage                   *filesystem.BlobStorage
+	payloadBeingSynced            *currentlySyncingPayload
 }
 
 // config options for the service.
@@ -71,6 +75,8 @@ type config struct {
 	ChainStartFetcher       execution.ChainStartFetcher
 	BeaconDB                db.HeadAccessDatabase
 	DepositCache            cache.DepositCache
+	PayloadAttestationCache *cache.PayloadAttestationCache
+	PayloadEnvelopeCache    *sync.Map
 	PayloadIDCache          *cache.PayloadIDCache
 	TrackedValidatorsCache  *cache.TrackedValidatorsCache
 	AttestationCache        *cache.AttestationCache
@@ -181,6 +187,7 @@ func NewService(ctx context.Context, opts ...Option) (*Service, error) {
 		blobNotifiers:        bn,
 		cfg:                  &config{},
 		blockBeingSynced:     &currentlySyncingBlock{roots: make(map[[32]byte]struct{})},
+		payloadBeingSynced:   &currentlySyncingPayload{roots: make(map[[32]byte]primitives.PTCStatus)},
 	}
 	for _, opt := range opts {
 		if err := opt(srv); err != nil {
@@ -267,18 +274,69 @@ func (s *Service) StartFromSavedState(saved state.BeaconState) error {
 		return err
 	}
 	s.originBlockRoot = originRoot
-	st, err := s.cfg.StateGen.Resume(s.ctx, s.cfg.FinalizedStateAtStartUp)
-	if err != nil {
-		return errors.Wrap(err, "could not get finalized state from db")
+
+	if err := s.initializeHeadFromDB(s.ctx); err != nil {
+		return errors.Wrap(err, "could not set up chain info")
 	}
 	spawnCountdownIfPreGenesis(s.ctx, s.genesisTime, s.cfg.BeaconDB)
-	if err := s.setupForkchoice(st); err != nil {
-		return errors.Wrap(err, "could not set up forkchoice")
+
+	justified, err := s.cfg.BeaconDB.JustifiedCheckpoint(s.ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not get justified checkpoint")
+	}
+	if justified == nil {
+		return errNilJustifiedCheckpoint
+	}
+	finalized, err := s.cfg.BeaconDB.FinalizedCheckpoint(s.ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not get finalized checkpoint")
+	}
+	if finalized == nil {
+		return errNilFinalizedCheckpoint
+	}
+
+	fRoot := s.ensureRootNotZeros(bytesutil.ToBytes32(finalized.Root))
+	s.cfg.ForkChoiceStore.Lock()
+	defer s.cfg.ForkChoiceStore.Unlock()
+	if err := s.cfg.ForkChoiceStore.UpdateJustifiedCheckpoint(s.ctx, &forkchoicetypes.Checkpoint{Epoch: justified.Epoch,
+		Root: bytesutil.ToBytes32(justified.Root)}); err != nil {
+		return errors.Wrap(err, "could not update forkchoice's justified checkpoint")
+	}
+	if err := s.cfg.ForkChoiceStore.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Epoch: finalized.Epoch,
+		Root: bytesutil.ToBytes32(finalized.Root)}); err != nil {
+		return errors.Wrap(err, "could not update forkchoice's finalized checkpoint")
+	}
+	s.cfg.ForkChoiceStore.SetGenesisTime(uint64(s.genesisTime.Unix()))
+
+	st, err := s.cfg.StateGen.StateByRoot(s.ctx, fRoot)
+	if err != nil {
+		return errors.Wrap(err, "could not get finalized checkpoint state")
+	}
+	finalizedBlock, err := s.cfg.BeaconDB.Block(s.ctx, fRoot)
+	if err != nil {
+		return errors.Wrap(err, "could not get finalized checkpoint block")
+	}
+	roblock, err := blocks.NewROBlockWithRoot(finalizedBlock, fRoot)
+	if err != nil {
+		return err
+	}
+	if err := s.cfg.ForkChoiceStore.InsertNode(s.ctx, st, roblock); err != nil {
+		return errors.Wrap(err, "could not insert finalized block to forkchoice")
+	}
+	if !features.Get().EnableStartOptimistic {
+		lastValidatedCheckpoint, err := s.cfg.BeaconDB.LastValidatedCheckpoint(s.ctx)
+		if err != nil {
+			return errors.Wrap(err, "could not get last validated checkpoint")
+		}
+		if bytes.Equal(finalized.Root, lastValidatedCheckpoint.Root) {
+			if err := s.cfg.ForkChoiceStore.SetOptimisticToValid(s.ctx, fRoot); err != nil {
+				return errors.Wrap(err, "could not set finalized block as validated")
+			}
+		}
 	}
 	// not attempting to save initial sync blocks here, because there shouldn't be any until
 	// after the statefeed.Initialized event is fired (below)
-	cp := s.FinalizedCheckpt()
-	if err := s.wsVerifier.VerifyWeakSubjectivity(s.ctx, cp.Epoch); err != nil {
+	if err := s.wsVerifier.VerifyWeakSubjectivity(s.ctx, finalized.Epoch); err != nil {
 		// Exit run time if the node failed to verify weak subjectivity checkpoint.
 		return errors.Wrap(err, "could not verify initial checkpoint provided for chain sync")
 	}
@@ -287,6 +345,7 @@ func (s *Service) StartFromSavedState(saved state.BeaconState) error {
 	if err := s.clockSetter.SetClock(startup.NewClock(s.genesisTime, vr)); err != nil {
 		return errors.Wrap(err, "failed to initialize blockchain service")
 	}
+
 	return nil
 }
 
@@ -319,10 +378,23 @@ func (s *Service) originRootFromSavedState(ctx context.Context) ([32]byte, error
 // initializeHeadFromDB uses the finalized checkpoint and head block found in the database to set the current head.
 // Note that this may block until stategen replays blocks between the finalized and head blocks
 // if the head sync flag was specified and the gap between the finalized and head blocks is at least 128 epochs long.
-func (s *Service) initializeHeadFromDB(ctx context.Context, finalizedState state.BeaconState) error {
-	cp := s.FinalizedCheckpt()
-	fRoot := [32]byte(cp.Root)
-	finalizedRoot := s.ensureRootNotZeros(fRoot)
+func (s *Service) initializeHeadFromDB(ctx context.Context) error {
+	finalized, err := s.cfg.BeaconDB.FinalizedCheckpoint(ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not get finalized checkpoint from db")
+	}
+	if finalized == nil {
+		// This should never happen. At chain start, the finalized checkpoint
+		// would be the genesis state and block.
+		return errors.New("no finalized epoch in the database")
+	}
+	finalizedRoot := s.ensureRootNotZeros(bytesutil.ToBytes32(finalized.Root))
+	var finalizedState state.BeaconState
+
+	finalizedState, err = s.cfg.StateGen.Resume(ctx, s.cfg.FinalizedStateAtStartUp)
+	if err != nil {
+		return errors.Wrap(err, "could not get finalized state from db")
+	}
 
 	if finalizedState == nil || finalizedState.IsNil() {
 		return errors.New("finalized state can't be nil")
@@ -491,7 +563,7 @@ func (s *Service) saveGenesisData(ctx context.Context, genesisState state.Beacon
 // 2.) Check DB.
 // Checking 1.) is ten times faster than checking 2.)
 // this function requires a lock in forkchoice
-func (s *Service) hasBlock(ctx context.Context, root [32]byte) bool {
+func (s *Service) chainHasBlock(ctx context.Context, root [32]byte) bool {
 	if s.cfg.ForkChoiceStore.HasNode(root) {
 		return true
 	}

beacon-chain/blockchain/service_test.go

@@ -386,8 +386,8 @@ func TestHasBlock_ForkChoiceAndDB_DoublyLinkedTree(t *testing.T) {
 	require.NoError(t, err)
 	require.NoError(t, s.cfg.ForkChoiceStore.InsertNode(ctx, beaconState, roblock))
 
-	assert.Equal(t, false, s.hasBlock(ctx, [32]byte{}), "Should not have block")
-	assert.Equal(t, true, s.hasBlock(ctx, r), "Should have block")
+	assert.Equal(t, false, s.chainHasBlock(ctx, [32]byte{}), "Should not have block")
+	assert.Equal(t, true, s.chainHasBlock(ctx, r), "Should have block")
 }
 
 func TestServiceStop_SaveCachedBlocks(t *testing.T) {

beacon-chain/blockchain/setup_forchoice.go

@@ -1,84 +0,0 @@
-package blockchain
-
-import (
-	"bytes"
-
-	"github.com/pkg/errors"
-	forkchoicetypes "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/types"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
-	"github.com/prysmaticlabs/prysm/v5/config/features"
-	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
-	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-)
-
-func (s *Service) setupForkchoice(st state.BeaconState) error {
-	if err := s.setupForkchoiceCheckpoints(); err != nil {
-		return errors.Wrap(err, "could not set up forkchoice checkpoints")
-	}
-	if err := s.setupForkchoiceRoot(st); err != nil {
-		return errors.Wrap(err, "could not set up forkchoice root")
-	}
-	if err := s.initializeHeadFromDB(s.ctx, st); err != nil {
-		return errors.Wrap(err, "could not initialize head from db")
-	}
-	return nil
-}
-
-func (s *Service) setupForkchoiceRoot(st state.BeaconState) error {
-	cp := s.FinalizedCheckpt()
-	fRoot := s.ensureRootNotZeros([32]byte(cp.Root))
-	finalizedBlock, err := s.cfg.BeaconDB.Block(s.ctx, fRoot)
-	if err != nil {
-		return errors.Wrap(err, "could not get finalized checkpoint block")
-	}
-	roblock, err := blocks.NewROBlockWithRoot(finalizedBlock, fRoot)
-	if err != nil {
-		return err
-	}
-	if err := s.cfg.ForkChoiceStore.InsertNode(s.ctx, st, roblock); err != nil {
-		return errors.Wrap(err, "could not insert finalized block to forkchoice")
-	}
-	if !features.Get().EnableStartOptimistic {
-		lastValidatedCheckpoint, err := s.cfg.BeaconDB.LastValidatedCheckpoint(s.ctx)
-		if err != nil {
-			return errors.Wrap(err, "could not get last validated checkpoint")
-		}
-		if bytes.Equal(fRoot[:], lastValidatedCheckpoint.Root) {
-			if err := s.cfg.ForkChoiceStore.SetOptimisticToValid(s.ctx, fRoot); err != nil {
-				return errors.Wrap(err, "could not set finalized block as validated")
-			}
-		}
-	}
-	return nil
-}
-
-func (s *Service) setupForkchoiceCheckpoints() error {
-	justified, err := s.cfg.BeaconDB.JustifiedCheckpoint(s.ctx)
-	if err != nil {
-		return errors.Wrap(err, "could not get justified checkpoint")
-	}
-	if justified == nil {
-		return errNilJustifiedCheckpoint
-	}
-	finalized, err := s.cfg.BeaconDB.FinalizedCheckpoint(s.ctx)
-	if err != nil {
-		return errors.Wrap(err, "could not get finalized checkpoint")
-	}
-	if finalized == nil {
-		return errNilFinalizedCheckpoint
-	}
-
-	fRoot := s.ensureRootNotZeros(bytesutil.ToBytes32(finalized.Root))
-	s.cfg.ForkChoiceStore.Lock()
-	defer s.cfg.ForkChoiceStore.Unlock()
-	if err := s.cfg.ForkChoiceStore.UpdateJustifiedCheckpoint(s.ctx, &forkchoicetypes.Checkpoint{Epoch: justified.Epoch,
-		Root: bytesutil.ToBytes32(justified.Root)}); err != nil {
-		return errors.Wrap(err, "could not update forkchoice's justified checkpoint")
-	}
-	if err := s.cfg.ForkChoiceStore.UpdateFinalizedCheckpoint(&forkchoicetypes.Checkpoint{Epoch: finalized.Epoch,
-		Root: fRoot}); err != nil {
-		return errors.Wrap(err, "could not update forkchoice's finalized checkpoint")
-	}
-	s.cfg.ForkChoiceStore.SetGenesisTime(uint64(s.genesisTime.Unix()))
-	return nil
-}

beacon-chain/blockchain/testing/BUILD.bazel

@@ -3,7 +3,10 @@ load("@prysm//tools/go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     testonly = True,
-    srcs = ["mock.go"],
+    srcs = [
+        "mock.go",
+        "mock_epbs.go",
+    ],
     importpath = "github.com/prysmaticlabs/prysm/v5/beacon-chain/blockchain/testing",
     visibility = [
         "//beacon-chain:__subpackages__",

beacon-chain/blockchain/testing/mock.go

@@ -37,44 +37,50 @@ var ErrNilState = errors.New("nil state")
 
 // ChainService defines the mock interface for testing
 type ChainService struct {
-	NotFinalized                bool
-	Optimistic                  bool
-	ValidAttestation            bool
-	ValidatorsRoot              [32]byte
-	PublicKey                   [fieldparams.BLSPubkeyLength]byte
-	FinalizedCheckPoint         *ethpb.Checkpoint
-	CurrentJustifiedCheckPoint  *ethpb.Checkpoint
-	PreviousJustifiedCheckPoint *ethpb.Checkpoint
-	Slot                        *primitives.Slot // Pointer because 0 is a useful value, so checking against it can be incorrect.
-	Balance                     *precompute.Balance
-	CanonicalRoots              map[[32]byte]bool
-	Fork                        *ethpb.Fork
-	ETH1Data                    *ethpb.Eth1Data
-	InitSyncBlockRoots          map[[32]byte]bool
-	DB                          db.Database
-	State                       state.BeaconState
-	Block                       interfaces.ReadOnlySignedBeaconBlock
-	VerifyBlkDescendantErr      error
-	stateNotifier               statefeed.Notifier
-	BlocksReceived              []interfaces.ReadOnlySignedBeaconBlock
-	SyncCommitteeIndices        []primitives.CommitteeIndex
-	blockNotifier               blockfeed.Notifier
-	opNotifier                  opfeed.Notifier
-	Root                        []byte
-	SyncCommitteeDomain         []byte
-	SyncSelectionProofDomain    []byte
-	SyncContributionProofDomain []byte
-	SyncCommitteePubkeys        [][]byte
-	Genesis                     time.Time
-	ForkChoiceStore             forkchoice.ForkChoicer
-	ReceiveBlockMockErr         error
-	OptimisticCheckRootReceived [32]byte
-	FinalizedRoots              map[[32]byte]bool
-	OptimisticRoots             map[[32]byte]bool
-	BlockSlot                   primitives.Slot
-	SyncingRoot                 [32]byte
-	Blobs                       []blocks.VerifiedROBlob
-	TargetRoot                  [32]byte
+	NotFinalized                        bool
+	Optimistic                          bool
+	ValidAttestation                    bool
+	ValidatorsRoot                      [32]byte
+	PublicKey                           [fieldparams.BLSPubkeyLength]byte
+	FinalizedCheckPoint                 *ethpb.Checkpoint
+	CurrentJustifiedCheckPoint          *ethpb.Checkpoint
+	PreviousJustifiedCheckPoint         *ethpb.Checkpoint
+	Slot                                *primitives.Slot // Pointer because 0 is a useful value, so checking against it can be incorrect.
+	Balance                             *precompute.Balance
+	CanonicalRoots                      map[[32]byte]bool
+	Fork                                *ethpb.Fork
+	ETH1Data                            *ethpb.Eth1Data
+	InitSyncBlockRoots                  map[[32]byte]bool
+	DB                                  db.Database
+	State                               state.BeaconState
+	Block                               interfaces.ReadOnlySignedBeaconBlock
+	ExecutionPayloadEnvelope            interfaces.ROExecutionPayloadEnvelope
+	VerifyBlkDescendantErr              error
+	stateNotifier                       statefeed.Notifier
+	BlocksReceived                      []interfaces.ReadOnlySignedBeaconBlock
+	SyncCommitteeIndices                []primitives.CommitteeIndex
+	blockNotifier                       blockfeed.Notifier
+	opNotifier                          opfeed.Notifier
+	Root                                []byte
+	SyncCommitteeDomain                 []byte
+	SyncSelectionProofDomain            []byte
+	SyncContributionProofDomain         []byte
+	SyncCommitteePubkeys                [][]byte
+	Genesis                             time.Time
+	ForkChoiceStore                     forkchoice.ForkChoicer
+	ReceiveBlockMockErr                 error
+	ReceiveEnvelopeMockErr              error
+	OptimisticCheckRootReceived         [32]byte
+	FinalizedRoots                      map[[32]byte]bool
+	OptimisticRoots                     map[[32]byte]bool
+	BlockSlot                           primitives.Slot
+	SyncingRoot                         [32]byte
+	Blobs                               []blocks.VerifiedROBlob
+	TargetRoot                          [32]byte
+	HighestReceivedSlot                 primitives.Slot
+	HighestReceivedRoot                 [32]byte
+	PayloadStatus                       primitives.PTCStatus
+	ReceivePayloadAttestationMessageErr error
 }
 
 func (s *ChainService) Ancestor(ctx context.Context, root []byte, slot primitives.Slot) ([]byte, error) {
@@ -641,12 +647,12 @@ func (s *ChainService) ReceivedBlocksLastEpoch() (uint64, error) {
 	return 0, nil
 }
 
-// HighestReceivedBlockSlot mocks the same method in the chain service
-func (s *ChainService) HighestReceivedBlockSlot() primitives.Slot {
+// HighestReceivedBlockSlotRoot mocks the same method in the chain service
+func (s *ChainService) HighestReceivedBlockSlotRoot() (primitives.Slot, [32]byte) {
 	if s.ForkChoiceStore != nil {
-		return s.ForkChoiceStore.HighestReceivedBlockSlot()
+		return s.ForkChoiceStore.HighestReceivedBlockSlotRoot()
 	}
-	return 0
+	return s.HighestReceivedSlot, s.HighestReceivedRoot
 }
 
 // InsertNode mocks the same method in the chain service
@@ -691,6 +697,11 @@ func (*ChainService) UnrealizedJustifiedPayloadBlockHash() [32]byte {
 	return [32]byte{}
 }
 
+// PayloadBeingSynced mocks the same method in the chain service
+func (c *ChainService) PayloadBeingSynced(root [32]byte) bool {
+	return root == c.SyncingRoot
+}
+
 // BlockBeingSynced mocks the same method in the chain service
 func (c *ChainService) BlockBeingSynced(root [32]byte) bool {
 	return root == c.SyncingRoot
@@ -706,3 +717,21 @@ func (c *ChainService) ReceiveBlob(_ context.Context, b blocks.VerifiedROBlob) e
 func (c *ChainService) TargetRootForEpoch(_ [32]byte, _ primitives.Epoch) ([32]byte, error) {
 	return c.TargetRoot, nil
 }
+
+// HashInForkchoice mocks the same method in the chain service
+func (c *ChainService) HashInForkchoice([32]byte) bool {
+	return false
+}
+
+// ReceivePayloadAttestationMessage mocks the same method in the chain service
+func (c *ChainService) ReceivePayloadAttestationMessage(_ context.Context, _ *ethpb.PayloadAttestationMessage) error {
+	return c.ReceivePayloadAttestationMessageErr
+}
+
+func (c *ChainService) GetPTCVote(root [32]byte) primitives.PTCStatus {
+	return c.PayloadStatus
+}
+
+func (c *ChainService) HashForBlockRoot(root [32]byte) [32]byte {
+	return root
+}

beacon-chain/blockchain/testing/mock_epbs.go

@@ -0,0 +1,30 @@
+package testing
+
+import (
+	"context"
+
+	"github.com/prysmaticlabs/prysm/v5/beacon-chain/das"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+)
+
+// ReceiveExecutionPayloadEnvelope mocks the  method in chain service.
+func (s *ChainService) ReceiveExecutionPayloadEnvelope(ctx context.Context, env interfaces.ROSignedExecutionPayloadEnvelope, _ das.AvailabilityStore) error {
+	if s.ReceiveBlockMockErr != nil {
+		return s.ReceiveBlockMockErr
+	}
+	if s.State == nil {
+		return ErrNilState
+	}
+	e, err := env.Envelope()
+	if err != nil {
+		return err
+	}
+
+	if s.State.Slot() == e.Slot() {
+		if err := s.State.SetLatestFullSlot(s.State.Slot()); err != nil {
+			return err
+		}
+	}
+	s.ExecutionPayloadEnvelope = e
+	return nil
+}

beacon-chain/cache/BUILD.bazel

@@ -16,11 +16,13 @@ go_library(
         "doc.go",
         "error.go",
         "interfaces.go",
+        "payload_attestation.go",
         "payload_id.go",
         "proposer_indices.go",
         "proposer_indices_disabled.go",  # keep
         "proposer_indices_type.go",
         "registration.go",
+        "signed_execution_header.go",
         "skip_slot_cache.go",
         "subnet_ids.go",
         "sync_committee.go",
@@ -50,6 +52,7 @@ go_library(
         "//encoding/bytesutil:go_default_library",
         "//math:go_default_library",
         "//monitoring/tracing/trace:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/attestation:go_default_library",
         "//runtime/version:go_default_library",
@@ -75,16 +78,17 @@ go_test(
         "checkpoint_state_test.go",
         "committee_fuzz_test.go",
         "committee_test.go",
+        "payload_attestation_test.go",
         "payload_id_test.go",
         "private_access_test.go",
         "proposer_indices_test.go",
         "registration_test.go",
+        "signed_execution_header_test.go",
         "skip_slot_cache_test.go",
         "subnet_ids_test.go",
         "sync_committee_head_state_test.go",
         "sync_committee_test.go",
         "sync_subnet_ids_test.go",
-        "tracked_validators_test.go",
     ],
     embed = [":go_default_library"],
     deps = [
@@ -94,8 +98,10 @@ go_test(
         "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",
         "//consensus-types/primitives:go_default_library",
+        "//crypto/bls:go_default_library",
         "//crypto/bls/blst:go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/attestation:go_default_library",
         "//testing/assert:go_default_library",

beacon-chain/cache/depositsnapshot/BUILD.bazel

@@ -5,7 +5,6 @@ go_library(
     srcs = [
         "deposit_fetcher.go",
         "deposit_inserter.go",
-        "deposit_pruner.go",
         "deposit_tree.go",
         "deposit_tree_snapshot.go",
         "merkle_tree.go",
@@ -36,7 +35,6 @@ go_test(
     srcs = [
         "deposit_cache_test.go",
         "deposit_fetcher_test.go",
-        "deposit_pruner_test.go",
         "deposit_tree_snapshot_test.go",
         "merkle_tree_test.go",
         "spec_test.go",

beacon-chain/cache/depositsnapshot/deposit_cache_test.go

@@ -903,6 +903,189 @@ func TestMin(t *testing.T) {
 
 }
 
+func TestPruneProofs_Ok(t *testing.T) {
+	dc, err := New()
+	require.NoError(t, err)
+
+	deposits := []struct {
+		blkNum  uint64
+		deposit *ethpb.Deposit
+		index   int64
+	}{
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
+			index: 0,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
+			index: 1,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
+			index: 2,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
+			index: 3,
+		},
+	}
+
+	for _, ins := range deposits {
+		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
+	}
+
+	require.NoError(t, dc.PruneProofs(context.Background(), 1))
+
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
+	assert.NotNil(t, dc.deposits[2].Deposit.Proof)
+	assert.NotNil(t, dc.deposits[3].Deposit.Proof)
+}
+
+func TestPruneProofs_SomeAlreadyPruned(t *testing.T) {
+	dc, err := New()
+	require.NoError(t, err)
+
+	deposits := []struct {
+		blkNum  uint64
+		deposit *ethpb.Deposit
+		index   int64
+	}{
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: nil, Data: &ethpb.Deposit_Data{
+				PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
+			index: 0,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: nil, Data: &ethpb.Deposit_Data{
+				PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}}, index: 1,
+		},
+		{
+			blkNum:  0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(), Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
+			index:   2,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
+			index: 3,
+		},
+	}
+
+	for _, ins := range deposits {
+		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
+	}
+
+	require.NoError(t, dc.PruneProofs(context.Background(), 2))
+
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
+}
+
+func TestPruneProofs_PruneAllWhenDepositIndexTooBig(t *testing.T) {
+	dc, err := New()
+	require.NoError(t, err)
+
+	deposits := []struct {
+		blkNum  uint64
+		deposit *ethpb.Deposit
+		index   int64
+	}{
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
+			index: 0,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
+			index: 1,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
+			index: 2,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
+			index: 3,
+		},
+	}
+
+	for _, ins := range deposits {
+		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
+	}
+
+	require.NoError(t, dc.PruneProofs(context.Background(), 99))
+
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[3].Deposit.Proof)
+}
+
+func TestPruneProofs_CorrectlyHandleLastIndex(t *testing.T) {
+	dc, err := New()
+	require.NoError(t, err)
+
+	deposits := []struct {
+		blkNum  uint64
+		deposit *ethpb.Deposit
+		index   int64
+	}{
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
+			index: 0,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
+			index: 1,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
+			index: 2,
+		},
+		{
+			blkNum: 0,
+			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
+				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
+			index: 3,
+		},
+	}
+
+	for _, ins := range deposits {
+		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
+	}
+
+	require.NoError(t, dc.PruneProofs(context.Background(), 4))
+
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
+	assert.DeepEqual(t, [][]byte(nil), dc.deposits[3].Deposit.Proof)
+}
+
 func TestDepositMap_WorksCorrectly(t *testing.T) {
 	dc, err := New()
 	require.NoError(t, err)

beacon-chain/cache/depositsnapshot/deposit_fetcher.go

@@ -178,6 +178,52 @@ func (c *Cache) NonFinalizedDeposits(ctx context.Context, lastFinalizedIndex int
 	return deposits
 }
 
+// PruneProofs removes proofs from all deposits whose index is equal or less than untilDepositIndex.
+func (c *Cache) PruneProofs(ctx context.Context, untilDepositIndex int64) error {
+	_, span := trace.StartSpan(ctx, "Cache.PruneProofs")
+	defer span.End()
+	c.depositsLock.Lock()
+	defer c.depositsLock.Unlock()
+
+	if untilDepositIndex >= int64(len(c.deposits)) {
+		untilDepositIndex = int64(len(c.deposits) - 1)
+	}
+
+	for i := untilDepositIndex; i >= 0; i-- {
+		// Finding a nil proof means that all proofs up to this deposit have been already pruned.
+		if c.deposits[i].Deposit.Proof == nil {
+			break
+		}
+		c.deposits[i].Deposit.Proof = nil
+	}
+
+	return nil
+}
+
+// PrunePendingDeposits removes any deposit which is older than the given deposit merkle tree index.
+func (c *Cache) PrunePendingDeposits(ctx context.Context, merkleTreeIndex int64) {
+	_, span := trace.StartSpan(ctx, "Cache.PrunePendingDeposits")
+	defer span.End()
+
+	if merkleTreeIndex == 0 {
+		log.Debug("Ignoring 0 deposit removal")
+		return
+	}
+
+	c.depositsLock.Lock()
+	defer c.depositsLock.Unlock()
+
+	cleanDeposits := make([]*ethpb.DepositContainer, 0, len(c.pendingDeposits))
+	for _, dp := range c.pendingDeposits {
+		if dp.Index >= merkleTreeIndex {
+			cleanDeposits = append(cleanDeposits, dp)
+		}
+	}
+
+	c.pendingDeposits = cleanDeposits
+	pendingDepositsCount.Set(float64(len(c.pendingDeposits)))
+}
+
 // InsertPendingDeposit into the database. If deposit or block number are nil
 // then this method does nothing.
 func (c *Cache) InsertPendingDeposit(ctx context.Context, d *ethpb.Deposit, blockNum uint64, index int64, depositRoot [32]byte) {

beacon-chain/cache/depositsnapshot/deposit_fetcher_test.go

@@ -44,3 +44,67 @@ func TestPendingDeposits_OK(t *testing.T) {
 	all := dc.PendingDeposits(context.Background(), nil)
 	assert.Equal(t, len(dc.pendingDeposits), len(all), "PendingDeposits(ctx, nil) did not return all deposits")
 }
+
+func TestPrunePendingDeposits_ZeroMerkleIndex(t *testing.T) {
+	dc := Cache{}
+
+	dc.pendingDeposits = []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 2, Index: 2},
+		{Eth1BlockHeight: 4, Index: 4},
+		{Eth1BlockHeight: 6, Index: 6},
+		{Eth1BlockHeight: 8, Index: 8},
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+
+	dc.PrunePendingDeposits(context.Background(), 0)
+	expected := []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 2, Index: 2},
+		{Eth1BlockHeight: 4, Index: 4},
+		{Eth1BlockHeight: 6, Index: 6},
+		{Eth1BlockHeight: 8, Index: 8},
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+	assert.DeepEqual(t, expected, dc.pendingDeposits)
+}
+
+func TestPrunePendingDeposits_OK(t *testing.T) {
+	dc := Cache{}
+
+	dc.pendingDeposits = []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 2, Index: 2},
+		{Eth1BlockHeight: 4, Index: 4},
+		{Eth1BlockHeight: 6, Index: 6},
+		{Eth1BlockHeight: 8, Index: 8},
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+
+	dc.PrunePendingDeposits(context.Background(), 6)
+	expected := []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 6, Index: 6},
+		{Eth1BlockHeight: 8, Index: 8},
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+
+	assert.DeepEqual(t, expected, dc.pendingDeposits)
+
+	dc.pendingDeposits = []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 2, Index: 2},
+		{Eth1BlockHeight: 4, Index: 4},
+		{Eth1BlockHeight: 6, Index: 6},
+		{Eth1BlockHeight: 8, Index: 8},
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+
+	dc.PrunePendingDeposits(context.Background(), 10)
+	expected = []*ethpb.DepositContainer{
+		{Eth1BlockHeight: 10, Index: 10},
+		{Eth1BlockHeight: 12, Index: 12},
+	}
+
+	assert.DeepEqual(t, expected, dc.pendingDeposits)
+}

beacon-chain/cache/depositsnapshot/deposit_pruner.go

@@ -1,88 +0,0 @@
-package depositsnapshot
-
-import (
-	"context"
-
-	"github.com/prysmaticlabs/prysm/v5/monitoring/tracing/trace"
-	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
-)
-
-// PruneProofs removes proofs from all deposits whose index is equal or less than untilDepositIndex.
-func (c *Cache) PruneProofs(ctx context.Context, untilDepositIndex int64) error {
-	_, span := trace.StartSpan(ctx, "Cache.PruneProofs")
-	defer span.End()
-	c.depositsLock.Lock()
-	defer c.depositsLock.Unlock()
-
-	if untilDepositIndex >= int64(len(c.deposits)) {
-		untilDepositIndex = int64(len(c.deposits) - 1)
-	}
-
-	for i := untilDepositIndex; i >= 0; i-- {
-		// Finding a nil proof means that all proofs up to this deposit have been already pruned.
-		if c.deposits[i].Deposit.Proof == nil {
-			break
-		}
-		c.deposits[i].Deposit.Proof = nil
-	}
-
-	return nil
-}
-
-// PruneAllProofs removes proofs from all deposits.
-// As EIP-6110 applies and the legacy deposit mechanism is deprecated,
-// proofs in deposit snapshot are no longer needed.
-// See: https://eips.ethereum.org/EIPS/eip-6110#eth1data-poll-deprecation
-func (c *Cache) PruneAllProofs(ctx context.Context) {
-	_, span := trace.StartSpan(ctx, "Cache.PruneAllProofs")
-	defer span.End()
-
-	c.depositsLock.Lock()
-	defer c.depositsLock.Unlock()
-
-	for i := len(c.deposits) - 1; i >= 0; i-- {
-		if c.deposits[i].Deposit.Proof == nil {
-			break
-		}
-		c.deposits[i].Deposit.Proof = nil
-	}
-}
-
-// PrunePendingDeposits removes any deposit which is older than the given deposit merkle tree index.
-func (c *Cache) PrunePendingDeposits(ctx context.Context, merkleTreeIndex int64) {
-	_, span := trace.StartSpan(ctx, "Cache.PrunePendingDeposits")
-	defer span.End()
-
-	if merkleTreeIndex == 0 {
-		log.Debug("Ignoring 0 deposit removal")
-		return
-	}
-
-	c.depositsLock.Lock()
-	defer c.depositsLock.Unlock()
-
-	cleanDeposits := make([]*ethpb.DepositContainer, 0, len(c.pendingDeposits))
-	for _, dp := range c.pendingDeposits {
-		if dp.Index >= merkleTreeIndex {
-			cleanDeposits = append(cleanDeposits, dp)
-		}
-	}
-
-	c.pendingDeposits = cleanDeposits
-	pendingDepositsCount.Set(float64(len(c.pendingDeposits)))
-}
-
-// PruneAllPendingDeposits removes all pending deposits from the cache.
-// As EIP-6110 applies and the legacy deposit mechanism is deprecated,
-// pending deposits in deposit snapshot are no longer needed.
-// See: https://eips.ethereum.org/EIPS/eip-6110#eth1data-poll-deprecation
-func (c *Cache) PruneAllPendingDeposits(ctx context.Context) {
-	_, span := trace.StartSpan(ctx, "Cache.PruneAllPendingDeposits")
-	defer span.End()
-
-	c.depositsLock.Lock()
-	defer c.depositsLock.Unlock()
-
-	c.pendingDeposits = make([]*ethpb.DepositContainer, 0)
-	pendingDepositsCount.Set(float64(0))
-}

beacon-chain/cache/depositsnapshot/deposit_pruner_test.go

@@ -1,323 +0,0 @@
-package depositsnapshot
-
-import (
-	"context"
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/v5/testing/assert"
-	"github.com/prysmaticlabs/prysm/v5/testing/require"
-)
-
-func TestPrunePendingDeposits_ZeroMerkleIndex(t *testing.T) {
-	dc := Cache{}
-
-	dc.pendingDeposits = []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 2, Index: 2},
-		{Eth1BlockHeight: 4, Index: 4},
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	dc.PrunePendingDeposits(context.Background(), 0)
-	expected := []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 2, Index: 2},
-		{Eth1BlockHeight: 4, Index: 4},
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-	assert.DeepEqual(t, expected, dc.pendingDeposits)
-}
-
-func TestPrunePendingDeposits_OK(t *testing.T) {
-	dc := Cache{}
-
-	dc.pendingDeposits = []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 2, Index: 2},
-		{Eth1BlockHeight: 4, Index: 4},
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	dc.PrunePendingDeposits(context.Background(), 6)
-	expected := []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	assert.DeepEqual(t, expected, dc.pendingDeposits)
-
-	dc.pendingDeposits = []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 2, Index: 2},
-		{Eth1BlockHeight: 4, Index: 4},
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	dc.PrunePendingDeposits(context.Background(), 10)
-	expected = []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	assert.DeepEqual(t, expected, dc.pendingDeposits)
-}
-
-func TestPruneAllPendingDeposits(t *testing.T) {
-	dc := Cache{}
-
-	dc.pendingDeposits = []*ethpb.DepositContainer{
-		{Eth1BlockHeight: 2, Index: 2},
-		{Eth1BlockHeight: 4, Index: 4},
-		{Eth1BlockHeight: 6, Index: 6},
-		{Eth1BlockHeight: 8, Index: 8},
-		{Eth1BlockHeight: 10, Index: 10},
-		{Eth1BlockHeight: 12, Index: 12},
-	}
-
-	dc.PruneAllPendingDeposits(context.Background())
-	expected := []*ethpb.DepositContainer{}
-
-	assert.DeepEqual(t, expected, dc.pendingDeposits)
-}
-
-func TestPruneProofs_Ok(t *testing.T) {
-	dc, err := New()
-	require.NoError(t, err)
-
-	deposits := []struct {
-		blkNum  uint64
-		deposit *ethpb.Deposit
-		index   int64
-	}{
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
-			index: 0,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
-			index: 1,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
-			index: 2,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
-			index: 3,
-		},
-	}
-
-	for _, ins := range deposits {
-		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
-	}
-
-	require.NoError(t, dc.PruneProofs(context.Background(), 1))
-
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
-	assert.NotNil(t, dc.deposits[2].Deposit.Proof)
-	assert.NotNil(t, dc.deposits[3].Deposit.Proof)
-}
-
-func TestPruneProofs_SomeAlreadyPruned(t *testing.T) {
-	dc, err := New()
-	require.NoError(t, err)
-
-	deposits := []struct {
-		blkNum  uint64
-		deposit *ethpb.Deposit
-		index   int64
-	}{
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: nil, Data: &ethpb.Deposit_Data{
-				PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
-			index: 0,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: nil, Data: &ethpb.Deposit_Data{
-				PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}}, index: 1,
-		},
-		{
-			blkNum:  0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(), Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
-			index:   2,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
-			index: 3,
-		},
-	}
-
-	for _, ins := range deposits {
-		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
-	}
-
-	require.NoError(t, dc.PruneProofs(context.Background(), 2))
-
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
-}
-
-func TestPruneProofs_PruneAllWhenDepositIndexTooBig(t *testing.T) {
-	dc, err := New()
-	require.NoError(t, err)
-
-	deposits := []struct {
-		blkNum  uint64
-		deposit *ethpb.Deposit
-		index   int64
-	}{
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
-			index: 0,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
-			index: 1,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
-			index: 2,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
-			index: 3,
-		},
-	}
-
-	for _, ins := range deposits {
-		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
-	}
-
-	require.NoError(t, dc.PruneProofs(context.Background(), 99))
-
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[3].Deposit.Proof)
-}
-
-func TestPruneProofs_CorrectlyHandleLastIndex(t *testing.T) {
-	dc, err := New()
-	require.NoError(t, err)
-
-	deposits := []struct {
-		blkNum  uint64
-		deposit *ethpb.Deposit
-		index   int64
-	}{
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
-			index: 0,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
-			index: 1,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
-			index: 2,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
-			index: 3,
-		},
-	}
-
-	for _, ins := range deposits {
-		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
-	}
-
-	require.NoError(t, dc.PruneProofs(context.Background(), 4))
-
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[3].Deposit.Proof)
-}
-
-func TestPruneAllProofs(t *testing.T) {
-	dc, err := New()
-	require.NoError(t, err)
-
-	deposits := []struct {
-		blkNum  uint64
-		deposit *ethpb.Deposit
-		index   int64
-	}{
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk0"), 48)}},
-			index: 0,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk1"), 48)}},
-			index: 1,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk2"), 48)}},
-			index: 2,
-		},
-		{
-			blkNum: 0,
-			deposit: &ethpb.Deposit{Proof: makeDepositProof(),
-				Data: &ethpb.Deposit_Data{PublicKey: bytesutil.PadTo([]byte("pk3"), 48)}},
-			index: 3,
-		},
-	}
-
-	for _, ins := range deposits {
-		assert.NoError(t, dc.InsertDeposit(context.Background(), ins.deposit, ins.blkNum, ins.index, [32]byte{}))
-	}
-
-	dc.PruneAllProofs(context.Background())
-
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[0].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[1].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[2].Deposit.Proof)
-	assert.DeepEqual(t, [][]byte(nil), dc.deposits[3].Deposit.Proof)
-}

beacon-chain/cache/interfaces.go

@@ -12,7 +12,6 @@ import (
 type DepositCache interface {
 	DepositFetcher
 	DepositInserter
-	DepositPruner
 }
 
 // DepositFetcher defines a struct which can retrieve deposit information from a store.
@@ -24,6 +23,8 @@ type DepositFetcher interface {
 	InsertPendingDeposit(ctx context.Context, d *ethpb.Deposit, blockNum uint64, index int64, depositRoot [32]byte)
 	PendingDeposits(ctx context.Context, untilBlk *big.Int) []*ethpb.Deposit
 	PendingContainers(ctx context.Context, untilBlk *big.Int) []*ethpb.DepositContainer
+	PrunePendingDeposits(ctx context.Context, merkleTreeIndex int64)
+	PruneProofs(ctx context.Context, untilDepositIndex int64) error
 	FinalizedFetcher
 }
 
@@ -41,14 +42,6 @@ type FinalizedFetcher interface {
 	NonFinalizedDeposits(ctx context.Context, lastFinalizedIndex int64, untilBlk *big.Int) []*ethpb.Deposit
 }
 
-// DepositPruner is an interface for pruning deposits and proofs.
-type DepositPruner interface {
-	PrunePendingDeposits(ctx context.Context, merkleTreeIndex int64)
-	PruneAllPendingDeposits(ctx context.Context)
-	PruneProofs(ctx context.Context, untilDepositIndex int64) error
-	PruneAllProofs(ctx context.Context)
-}
-
 // FinalizedDeposits defines a method to access a merkle tree containing deposits and their indexes.
 type FinalizedDeposits interface {
 	Deposits() MerkleTree

beacon-chain/cache/payload_attestation.go

@@ -0,0 +1,132 @@
+package cache
+
+import (
+	"errors"
+	"sync"
+
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/v5/crypto/bls"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+)
+
+var errNilPayloadAttestationMessage = errors.New("nil Payload Attestation Message")
+
+// PayloadAttestationCache keeps a map of all the PTC votes that were seen,
+// already aggregated. The key is the beacon block root.
+type PayloadAttestationCache struct {
+	root         [32]byte
+	attestations [primitives.PAYLOAD_INVALID_STATUS]*eth.PayloadAttestation
+	sync.Mutex
+}
+
+// Seen returns true if a vote for the given Beacon Block Root has already been processed
+// for this Payload Timeliness Committee index. This will return true even if
+// the Payload status differs.
+func (p *PayloadAttestationCache) Seen(root [32]byte, idx uint64) bool {
+	p.Lock()
+	defer p.Unlock()
+	if p.root != root {
+		return false
+	}
+	for _, agg := range p.attestations {
+		if agg == nil {
+			continue
+		}
+		if agg.AggregationBits.BitAt(idx) {
+			return true
+		}
+	}
+	return false
+}
+
+// messageToPayloadAttestation creates a PayloadAttestation with a single
+// aggregated bit from the passed PayloadAttestationMessage
+func messageToPayloadAttestation(att *eth.PayloadAttestationMessage, idx uint64) *eth.PayloadAttestation {
+	bits := primitives.NewPayloadAttestationAggregationBits()
+	bits.SetBitAt(idx, true)
+	data := &eth.PayloadAttestationData{
+		BeaconBlockRoot: bytesutil.SafeCopyBytes(att.Data.BeaconBlockRoot),
+		Slot:            att.Data.Slot,
+		PayloadStatus:   att.Data.PayloadStatus,
+	}
+	return &eth.PayloadAttestation{
+		AggregationBits: bits,
+		Data:            data,
+		Signature:       bytesutil.SafeCopyBytes(att.Signature),
+	}
+}
+
+// aggregateSigFromMessage returns the aggregated signature from a Payload
+// Attestation by adding the passed signature in the PayloadAttestationMessage,
+// no signature validation is performed.
+func aggregateSigFromMessage(aggregated *eth.PayloadAttestation, message *eth.PayloadAttestationMessage) ([]byte, error) {
+	aggSig, err := bls.SignatureFromBytesNoValidation(aggregated.Signature)
+	if err != nil {
+		return nil, err
+	}
+	sig, err := bls.SignatureFromBytesNoValidation(message.Signature)
+	if err != nil {
+		return nil, err
+	}
+	return bls.AggregateSignatures([]bls.Signature{aggSig, sig}).Marshal(), nil
+}
+
+// Add adds a PayloadAttestationMessage to the internal cache of aggregated
+// PayloadAttestations.
+// If the index has already been seen for this attestation status the function does nothing.
+// If the root is not the cached root, the function will clear the previous cache
+// This function assumes that the message has already been validated. In
+// particular that the signature is valid and that the block root corresponds to
+// the given slot in the attestation data.
+func (p *PayloadAttestationCache) Add(att *eth.PayloadAttestationMessage, idx uint64) error {
+	if att == nil || att.Data == nil || att.Data.BeaconBlockRoot == nil {
+		return errNilPayloadAttestationMessage
+	}
+	p.Lock()
+	defer p.Unlock()
+	root := [32]byte(att.Data.BeaconBlockRoot)
+	if p.root != root {
+		p.root = root
+		p.attestations = [primitives.PAYLOAD_INVALID_STATUS]*eth.PayloadAttestation{}
+	}
+	agg := p.attestations[att.Data.PayloadStatus]
+	if agg == nil {
+		p.attestations[att.Data.PayloadStatus] = messageToPayloadAttestation(att, idx)
+		return nil
+	}
+	if agg.AggregationBits.BitAt(idx) {
+		return nil
+	}
+	sig, err := aggregateSigFromMessage(agg, att)
+	if err != nil {
+		return err
+	}
+	agg.Signature = sig
+	agg.AggregationBits.SetBitAt(idx, true)
+	return nil
+}
+
+// Get returns the aggregated PayloadAttestation for the given root and status
+// if the root doesn't exist or status is invalid, the function returns nil.
+func (p *PayloadAttestationCache) Get(root [32]byte, status primitives.PTCStatus) *eth.PayloadAttestation {
+	p.Lock()
+	defer p.Unlock()
+
+	if p.root != root {
+		return nil
+	}
+	if status >= primitives.PAYLOAD_INVALID_STATUS {
+		return nil
+	}
+
+	return eth.CopyPayloadAttestation(p.attestations[status])
+}
+
+// Clear clears the internal map
+func (p *PayloadAttestationCache) Clear() {
+	p.Lock()
+	defer p.Unlock()
+	p.root = [32]byte{}
+	p.attestations = [primitives.PAYLOAD_INVALID_STATUS]*eth.PayloadAttestation{}
+}

beacon-chain/cache/payload_attestation_test.go

@@ -0,0 +1,143 @@
+package cache
+
+import (
+	"testing"
+
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/v5/crypto/bls"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/testing/require"
+)
+
+func TestPayloadAttestationCache(t *testing.T) {
+	p := &PayloadAttestationCache{}
+
+	//Test Has seen
+	root := [32]byte{'r'}
+	idx := uint64(5)
+	require.Equal(t, false, p.Seen(root, idx))
+
+	// Test Add
+	msg := &eth.PayloadAttestationMessage{
+		Signature: bls.NewAggregateSignature().Marshal(),
+		Data: &eth.PayloadAttestationData{
+			BeaconBlockRoot: root[:],
+			Slot:            1,
+			PayloadStatus:   primitives.PAYLOAD_PRESENT,
+		},
+	}
+
+	// Add new root
+	require.NoError(t, p.Add(msg, idx))
+	require.Equal(t, true, p.Seen(root, idx))
+	require.Equal(t, root, p.root)
+	att := p.attestations[primitives.PAYLOAD_PRESENT]
+	indices := att.AggregationBits.BitIndices()
+	require.DeepEqual(t, []int{int(idx)}, indices)
+	singleSig := bytesutil.SafeCopyBytes(msg.Signature)
+	require.DeepEqual(t, singleSig, att.Signature)
+
+	// Test Seen
+	require.Equal(t, true, p.Seen(root, idx))
+	require.Equal(t, false, p.Seen(root, idx+1))
+
+	// Add another attestation on the same data
+	msg2 := &eth.PayloadAttestationMessage{
+		Signature: bls.NewAggregateSignature().Marshal(),
+		Data:      att.Data,
+	}
+	idx2 := uint64(7)
+	require.NoError(t, p.Add(msg2, idx2))
+	att = p.attestations[primitives.PAYLOAD_PRESENT]
+	indices = att.AggregationBits.BitIndices()
+	require.DeepEqual(t, []int{int(idx), int(idx2)}, indices)
+	require.DeepNotEqual(t, att.Signature, msg.Signature)
+
+	// Try again the same index
+	require.NoError(t, p.Add(msg2, idx2))
+	att2 := p.attestations[primitives.PAYLOAD_PRESENT]
+	indices = att.AggregationBits.BitIndices()
+	require.DeepEqual(t, []int{int(idx), int(idx2)}, indices)
+	require.DeepEqual(t, att, att2)
+
+	// Test Seen
+	require.Equal(t, true, p.Seen(root, idx2))
+	require.Equal(t, false, p.Seen(root, idx2+1))
+
+	// Add another payload status for a different payload status
+	msg3 := &eth.PayloadAttestationMessage{
+		Signature: bls.NewAggregateSignature().Marshal(),
+		Data: &eth.PayloadAttestationData{
+			BeaconBlockRoot: root[:],
+			Slot:            1,
+			PayloadStatus:   primitives.PAYLOAD_WITHHELD,
+		},
+	}
+	idx3 := uint64(17)
+
+	require.NoError(t, p.Add(msg3, idx3))
+	att3 := p.attestations[primitives.PAYLOAD_WITHHELD]
+	indices3 := att3.AggregationBits.BitIndices()
+	require.DeepEqual(t, []int{int(idx3)}, indices3)
+	require.DeepEqual(t, singleSig, att3.Signature)
+
+	// Add a different root
+	root2 := [32]byte{'s'}
+	msg.Data.BeaconBlockRoot = root2[:]
+	require.NoError(t, p.Add(msg, idx))
+	require.Equal(t, root2, p.root)
+	require.Equal(t, true, p.Seen(root2, idx))
+	require.Equal(t, false, p.Seen(root, idx))
+	att = p.attestations[primitives.PAYLOAD_PRESENT]
+	indices = att.AggregationBits.BitIndices()
+	require.DeepEqual(t, []int{int(idx)}, indices)
+}
+
+func TestPayloadAttestationCache_Get(t *testing.T) {
+	root := [32]byte{1, 2, 3}
+	wrongRoot := [32]byte{4, 5, 6}
+	status := primitives.PAYLOAD_PRESENT
+	invalidStatus := primitives.PAYLOAD_INVALID_STATUS
+
+	cache := &PayloadAttestationCache{
+		root: root,
+		attestations: [primitives.PAYLOAD_INVALID_STATUS]*eth.PayloadAttestation{
+			{
+				Signature: []byte{1},
+			},
+			{
+				Signature: []byte{2},
+			},
+			{
+				Signature: []byte{3},
+			},
+		},
+	}
+
+	t.Run("valid root and status", func(t *testing.T) {
+		result := cache.Get(root, status)
+		require.NotNil(t, result, "Expected a non-nil result")
+		require.DeepEqual(t, cache.attestations[status], result)
+	})
+
+	t.Run("invalid root", func(t *testing.T) {
+		result := cache.Get(wrongRoot, status)
+		require.IsNil(t, result)
+	})
+
+	t.Run("status out of bound", func(t *testing.T) {
+		result := cache.Get(root, invalidStatus)
+		require.IsNil(t, result)
+	})
+
+	t.Run("no attestation", func(t *testing.T) {
+		emptyCache := &PayloadAttestationCache{
+			root:         root,
+			attestations: [primitives.PAYLOAD_INVALID_STATUS]*eth.PayloadAttestation{},
+		}
+
+		result := emptyCache.Get(root, status)
+		require.IsNil(t, result)
+	})
+}

beacon-chain/cache/signed_execution_header.go

@@ -0,0 +1,76 @@
+package cache
+
+import (
+	"bytes"
+	"sync"
+
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
+)
+
+// ExecutionPayloadHeaders is used  by the sync service to store signed execution payload headers after they pass validation,
+// and filter out subsequent headers with lower value.
+// The signed header from this cache could be used by the proposer when proposing the next slot.
+type ExecutionPayloadHeaders struct {
+	headers map[primitives.Slot][]*enginev1.SignedExecutionPayloadHeader
+	sync.RWMutex
+}
+
+func NewExecutionPayloadHeaders() *ExecutionPayloadHeaders {
+	return &ExecutionPayloadHeaders{
+		headers: make(map[primitives.Slot][]*enginev1.SignedExecutionPayloadHeader),
+	}
+}
+
+// SaveSignedExecutionPayloadHeader saves the signed execution payload header to the cache.
+// The cache stores headers for up to two slots. If the input slot is higher than the lowest slot
+// currently in the cache, the lowest slot is removed to make space for the new header.
+// Only the highest value header for a given parent block hash will be stored.
+// This function assumes caller already checks header's slot is current or next slot, it doesn't account for slot validation.
+func (c *ExecutionPayloadHeaders) SaveSignedExecutionPayloadHeader(header *enginev1.SignedExecutionPayloadHeader) {
+	c.Lock()
+	defer c.Unlock()
+
+	for s := range c.headers {
+		if s+1 < header.Message.Slot {
+			delete(c.headers, s)
+		}
+	}
+
+	// Add or update the header in the map
+	if _, ok := c.headers[header.Message.Slot]; !ok {
+		c.headers[header.Message.Slot] = []*enginev1.SignedExecutionPayloadHeader{header}
+	} else {
+		found := false
+		for i, h := range c.headers[header.Message.Slot] {
+			if bytes.Equal(h.Message.ParentBlockHash, header.Message.ParentBlockHash) && bytes.Equal(h.Message.ParentBlockRoot, header.Message.ParentBlockRoot) {
+				if header.Message.Value > h.Message.Value {
+					c.headers[header.Message.Slot][i] = header
+				}
+				found = true
+				break
+			}
+		}
+		if !found {
+			c.headers[header.Message.Slot] = append(c.headers[header.Message.Slot], header)
+		}
+	}
+}
+
+// SignedExecutionPayloadHeader returns the signed payload header for the given slot and parent block hash and block root.
+// Returns nil if the header is not found.
+// This should be used when the caller wants the header to match parent block hash and parent block root such as proposer choosing a header to propose.
+func (c *ExecutionPayloadHeaders) SignedExecutionPayloadHeader(slot primitives.Slot, parentBlockHash []byte, parentBlockRoot []byte) *enginev1.SignedExecutionPayloadHeader {
+	c.RLock()
+	defer c.RUnlock()
+
+	if headers, ok := c.headers[slot]; ok {
+		for _, header := range headers {
+			if bytes.Equal(header.Message.ParentBlockHash, parentBlockHash) && bytes.Equal(header.Message.ParentBlockRoot, parentBlockRoot) {
+				return header
+			}
+		}
+	}
+
+	return nil
+}

beacon-chain/cache/signed_execution_header_test.go

@@ -0,0 +1,243 @@
+package cache
+
+import (
+	"testing"
+
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
+	"github.com/prysmaticlabs/prysm/v5/testing/require"
+)
+
+func Test_SaveSignedExecutionPayloadHeader(t *testing.T) {
+	t.Run("First header should be added to cache", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header)
+		require.Equal(t, 1, len(c.headers))
+		require.Equal(t, header, c.headers[1][0])
+	})
+
+	t.Run("Second header with higher slot should be added, and both slots should be in cache", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+		require.Equal(t, 2, len(c.headers))
+		require.Equal(t, header1, c.headers[1][0])
+		require.Equal(t, header2, c.headers[2][0])
+	})
+
+	t.Run("Third header with higher slot should replace the oldest slot", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           100,
+			},
+		}
+		header3 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            3,
+				ParentBlockHash: []byte("parent3"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+		c.SaveSignedExecutionPayloadHeader(header3)
+		require.Equal(t, 2, len(c.headers))
+		require.Equal(t, header2, c.headers[2][0])
+		require.Equal(t, header3, c.headers[3][0])
+	})
+
+	t.Run("Header with same slot but higher value should replace the existing one", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           200,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+		require.Equal(t, 1, len(c.headers[2]))
+		require.Equal(t, header2, c.headers[2][0])
+	})
+
+	t.Run("Header with different parent block hash should be appended to the same slot", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           200,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+		require.Equal(t, 2, len(c.headers[2]))
+		require.Equal(t, header1, c.headers[2][0])
+		require.Equal(t, header2, c.headers[2][1])
+	})
+}
+
+func TestSignedExecutionPayloadHeader(t *testing.T) {
+	t.Run("Return header when slot and parentBlockHash match", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				ParentBlockRoot: []byte("root1"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header)
+		result := c.SignedExecutionPayloadHeader(1, []byte("parent1"), []byte("root1"))
+		require.NotNil(t, result)
+		require.Equal(t, header, result)
+	})
+
+	t.Run("Return nil when no matching slot and parentBlockHash", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				ParentBlockRoot: []byte("root1"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header)
+		result := c.SignedExecutionPayloadHeader(2, []byte("parent2"), []byte("root1"))
+		require.IsNil(t, result)
+	})
+
+	t.Run("Return nil when no matching slot and parentBlockRoot", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				ParentBlockRoot: []byte("root1"),
+				Value:           100,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header)
+		result := c.SignedExecutionPayloadHeader(2, []byte("parent1"), []byte("root2"))
+		require.IsNil(t, result)
+	})
+
+	t.Run("Return header when there are two slots in the cache and a match is found", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           200,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+
+		// Check for the first header
+		result1 := c.SignedExecutionPayloadHeader(1, []byte("parent1"), []byte{})
+		require.NotNil(t, result1)
+		require.Equal(t, header1, result1)
+
+		// Check for the second header
+		result2 := c.SignedExecutionPayloadHeader(2, []byte("parent2"), []byte{})
+		require.NotNil(t, result2)
+		require.Equal(t, header2, result2)
+	})
+
+	t.Run("Return nil when slot is evicted from cache", func(t *testing.T) {
+		c := NewExecutionPayloadHeaders()
+		header1 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            1,
+				ParentBlockHash: []byte("parent1"),
+				Value:           100,
+			},
+		}
+		header2 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            2,
+				ParentBlockHash: []byte("parent2"),
+				Value:           200,
+			},
+		}
+		header3 := &enginev1.SignedExecutionPayloadHeader{
+			Message: &enginev1.ExecutionPayloadHeaderEPBS{
+				Slot:            3,
+				ParentBlockHash: []byte("parent3"),
+				Value:           300,
+			},
+		}
+		c.SaveSignedExecutionPayloadHeader(header1)
+		c.SaveSignedExecutionPayloadHeader(header2)
+		c.SaveSignedExecutionPayloadHeader(header3)
+
+		// The first slot should be evicted, so result should be nil
+		result := c.SignedExecutionPayloadHeader(1, []byte("parent1"), []byte{})
+		require.IsNil(t, result)
+
+		// The second slot should still be present
+		result = c.SignedExecutionPayloadHeader(2, []byte("parent2"), []byte{})
+		require.NotNil(t, result)
+		require.Equal(t, header2, result)
+
+		// The third slot should be present
+		result = c.SignedExecutionPayloadHeader(3, []byte("parent3"), []byte{})
+		require.NotNil(t, result)
+		require.Equal(t, header3, result)
+	})
+}

beacon-chain/cache/tracked_validators.go

@@ -1,139 +1,49 @@
 package cache
 
 import (
-	"strconv"
-	"time"
+	"sync"
 
-	"github.com/patrickmn/go-cache"
-	"github.com/pkg/errors"
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/sirupsen/logrus"
 )
 
-const (
-	defaultExpiration = 1 * time.Hour
-	cleanupInterval   = 15 * time.Minute
-)
+type TrackedValidator struct {
+	Active       bool
+	FeeRecipient primitives.ExecutionAddress
+	Index        primitives.ValidatorIndex
+}
 
-type (
-	TrackedValidator struct {
-		Active       bool
-		FeeRecipient primitives.ExecutionAddress
-		Index        primitives.ValidatorIndex
-	}
+type TrackedValidatorsCache struct {
+	sync.Mutex
+	trackedValidators map[primitives.ValidatorIndex]TrackedValidator
+}
 
-	TrackedValidatorsCache struct {
-		trackedValidators cache.Cache
-	}
-)
-
-var (
-	// Metrics.
-	trackedValidatorsCacheMiss = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "tracked_validators_cache_miss",
-		Help: "The number of tracked validators requests that are not present in the cache.",
-	})
-
-	trackedValidatorsCacheTotal = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "tracked_validators_cache_total",
-		Help: "The total number of tracked validators requests in the cache.",
-	})
-
-	trackedValidatorsCacheCount = promauto.NewGauge(prometheus.GaugeOpts{
-		Name: "tracked_validators_cache_count",
-		Help: "The number of tracked validators in the cache.",
-	})
-)
-
-// NewTrackedValidatorsCache creates a new cache for tracking validators.
 func NewTrackedValidatorsCache() *TrackedValidatorsCache {
 	return &TrackedValidatorsCache{
-		trackedValidators: *cache.New(defaultExpiration, cleanupInterval),
+		trackedValidators: make(map[primitives.ValidatorIndex]TrackedValidator),
 	}
 }
 
-// Validator retrieves a tracked validator from the cache (if present).
 func (t *TrackedValidatorsCache) Validator(index primitives.ValidatorIndex) (TrackedValidator, bool) {
-	trackedValidatorsCacheTotal.Inc()
-
-	key := toCacheKey(index)
-	item, ok := t.trackedValidators.Get(key)
-	if !ok {
-		trackedValidatorsCacheMiss.Inc()
-		return TrackedValidator{}, false
-	}
-
-	val, ok := item.(TrackedValidator)
-	if !ok {
-		logrus.Errorf("Failed to cast tracked validator from cache, got unexpected item type %T", item)
-		return TrackedValidator{}, false
-	}
-
-	return val, true
+	t.Lock()
+	defer t.Unlock()
+	val, ok := t.trackedValidators[index]
+	return val, ok
 }
 
-// Set adds a tracked validator to the cache.
 func (t *TrackedValidatorsCache) Set(val TrackedValidator) {
-	key := toCacheKey(val.Index)
-	t.trackedValidators.Set(key, val, cache.DefaultExpiration)
+	t.Lock()
+	defer t.Unlock()
+	t.trackedValidators[val.Index] = val
 }
 
-// Delete removes a tracked validator from the cache.
 func (t *TrackedValidatorsCache) Prune() {
-	t.trackedValidators.Flush()
-	trackedValidatorsCacheCount.Set(0)
+	t.Lock()
+	defer t.Unlock()
+	t.trackedValidators = make(map[primitives.ValidatorIndex]TrackedValidator)
 }
 
-// Validating returns true if there are at least one tracked validators in the cache.
 func (t *TrackedValidatorsCache) Validating() bool {
-	count := t.trackedValidators.ItemCount()
-	trackedValidatorsCacheCount.Set(float64(count))
-
-	return count > 0
-}
-
-// ItemCount returns the number of tracked validators in the cache.
-func (t *TrackedValidatorsCache) ItemCount() int {
-	count := t.trackedValidators.ItemCount()
-	trackedValidatorsCacheCount.Set(float64(count))
-
-	return count
-}
-
-// Indices returns a map of validator indices that are being tracked.
-func (t *TrackedValidatorsCache) Indices() map[primitives.ValidatorIndex]bool {
-	items := t.trackedValidators.Items()
-	count := len(items)
-	trackedValidatorsCacheCount.Set(float64(count))
-
-	indices := make(map[primitives.ValidatorIndex]bool, count)
-
-	for cacheKey := range items {
-		index, err := fromCacheKey(cacheKey)
-		if err != nil {
-			logrus.WithError(err).Error("Failed to get validator index from cache key")
-			continue
-		}
-
-		indices[index] = true
-	}
-
-	return indices
-}
-
-// toCacheKey creates a cache key from the validator index.
-func toCacheKey(validatorIndex primitives.ValidatorIndex) string {
-	return strconv.FormatUint(uint64(validatorIndex), 10)
-}
-
-// fromCacheKey gets the validator index from the cache key.
-func fromCacheKey(key string) (primitives.ValidatorIndex, error) {
-	validatorIndex, err := strconv.ParseUint(key, 10, 64)
-	if err != nil {
-		return 0, errors.Wrapf(err, "parse Uint: %s", key)
-	}
-
-	return primitives.ValidatorIndex(validatorIndex), nil
+	t.Lock()
+	defer t.Unlock()
+	return len(t.trackedValidators) > 0
 }

beacon-chain/cache/tracked_validators_test.go

@@ -1,79 +0,0 @@
-package cache
-
-import (
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v5/testing/require"
-)
-
-func mapEqual(a, b map[primitives.ValidatorIndex]bool) bool {
-	if len(a) != len(b) {
-		return false
-	}
-
-	for k, v := range a {
-		if b[k] != v {
-			return false
-		}
-	}
-
-	return true
-}
-
-func TestTrackedValidatorsCache(t *testing.T) {
-	vc := NewTrackedValidatorsCache()
-
-	// No validators in cache.
-	require.Equal(t, 0, vc.ItemCount())
-	require.Equal(t, false, vc.Validating())
-	require.Equal(t, 0, len(vc.Indices()))
-
-	_, ok := vc.Validator(41)
-	require.Equal(t, false, ok)
-
-	// Add some validators (one twice).
-	v42Expected := TrackedValidator{Active: true, FeeRecipient: [20]byte{1}, Index: 42}
-	v43Expected := TrackedValidator{Active: false, FeeRecipient: [20]byte{2}, Index: 43}
-
-	vc.Set(v42Expected)
-	vc.Set(v43Expected)
-	vc.Set(v42Expected)
-
-	// Check if they are in the cache.
-	v42Actual, ok := vc.Validator(42)
-	require.Equal(t, true, ok)
-	require.Equal(t, v42Expected, v42Actual)
-
-	v43Actual, ok := vc.Validator(43)
-	require.Equal(t, true, ok)
-	require.Equal(t, v43Expected, v43Actual)
-
-	expected := map[primitives.ValidatorIndex]bool{42: true, 43: true}
-	actual := vc.Indices()
-	require.Equal(t, true, mapEqual(expected, actual))
-
-	// Check the item count and if the cache is validating.
-	require.Equal(t, 2, vc.ItemCount())
-	require.Equal(t, true, vc.Validating())
-
-	// Check if a non-existing validator is in the cache.
-	_, ok = vc.Validator(41)
-	require.Equal(t, false, ok)
-
-	// Prune the cache and test it.
-	vc.Prune()
-
-	_, ok = vc.Validator(41)
-	require.Equal(t, false, ok)
-
-	_, ok = vc.Validator(42)
-	require.Equal(t, false, ok)
-
-	_, ok = vc.Validator(43)
-	require.Equal(t, false, ok)
-
-	require.Equal(t, 0, vc.ItemCount())
-	require.Equal(t, false, vc.Validating())
-	require.Equal(t, 0, len(vc.Indices()))
-}

beacon-chain/core/altair/attestation.go

@@ -66,7 +66,7 @@ func ProcessAttestationNoVerifySignature(
 	if err != nil {
 		return nil, err
 	}
-	committees, err := helpers.AttestationCommitteesFromState(ctx, beaconState, att)
+	committees, err := helpers.AttestationCommittees(ctx, beaconState, att)
 	if err != nil {
 		return nil, err
 	}

beacon-chain/core/blocks/BUILD.bazel

@@ -107,6 +107,7 @@ go_test(
         "//testing/assert:go_default_library",
         "//testing/require:go_default_library",
         "//testing/util:go_default_library",
+        "//testing/util/random:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_google_gofuzz//:go_default_library",
         "@com_github_prysmaticlabs_go_bitfield//:go_default_library",

beacon-chain/core/blocks/genesis.go

@@ -12,6 +12,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+	"github.com/prysmaticlabs/prysm/v5/encoding/ssz"
 	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 )
@@ -222,6 +223,42 @@ func NewGenesisBlockForState(ctx context.Context, st state.BeaconState) (interfa
 			},
 			Signature: params.BeaconConfig().EmptySignature[:],
 		})
+	case *ethpb.BeaconStateEPBS:
+		kzgs := make([][]byte, 0)
+		kzgRoot, err := ssz.KzgCommitmentsRoot(kzgs)
+		if err != nil {
+			return nil, err
+		}
+		return blocks.NewSignedBeaconBlock(&ethpb.SignedBeaconBlockEpbs{
+			Block: &ethpb.BeaconBlockEpbs{
+				ParentRoot: params.BeaconConfig().ZeroHash[:],
+				StateRoot:  root[:],
+				Body: &ethpb.BeaconBlockBodyEpbs{
+					RandaoReveal: make([]byte, 96),
+					Eth1Data: &ethpb.Eth1Data{
+						DepositRoot: make([]byte, 32),
+						BlockHash:   make([]byte, 32),
+					},
+					Graffiti: make([]byte, 32),
+					SyncAggregate: &ethpb.SyncAggregate{
+						SyncCommitteeBits:      make([]byte, fieldparams.SyncCommitteeLength/8),
+						SyncCommitteeSignature: make([]byte, fieldparams.BLSSignatureLength),
+					},
+					SignedExecutionPayloadHeader: &enginev1.SignedExecutionPayloadHeader{
+						Message: &enginev1.ExecutionPayloadHeaderEPBS{
+							ParentBlockHash:        make([]byte, 32),
+							ParentBlockRoot:        make([]byte, 32),
+							BlockHash:              make([]byte, 32),
+							BlobKzgCommitmentsRoot: kzgRoot[:],
+						},
+						Signature: make([]byte, 96),
+					},
+					BlsToExecutionChanges: make([]*ethpb.SignedBLSToExecutionChange, 0),
+					PayloadAttestations:   make([]*ethpb.PayloadAttestation, 0),
+				},
+			},
+			Signature: params.BeaconConfig().EmptySignature[:],
+		})
 	default:
 		return nil, ErrUnrecognizedState
 	}

beacon-chain/core/blocks/payload.go

@@ -59,6 +59,9 @@ func IsMergeTransitionComplete(st state.BeaconState) (bool, error) {
 //
 //	return block.body.execution_payload != ExecutionPayload()
 func IsExecutionBlock(body interfaces.ReadOnlyBeaconBlockBody) (bool, error) {
+	if body.Version() >= version.Capella {
+		return true, nil
+	}
 	if body == nil {
 		return false, errors.New("nil block body")
 	}
@@ -94,6 +97,9 @@ func IsExecutionEnabled(st state.BeaconState, body interfaces.ReadOnlyBeaconBloc
 	if IsPreBellatrixVersion(st.Version()) {
 		return false, nil
 	}
+	if body.Version() >= version.Capella {
+		return true, nil
+	}
 	header, err := st.LatestExecutionPayloadHeader()
 	if err != nil {
 		return false, err
@@ -244,12 +250,47 @@ func verifyBlobCommitmentCount(slot primitives.Slot, body interfaces.ReadOnlyBea
 // GetBlockPayloadHash returns the hash of the execution payload of the block
 func GetBlockPayloadHash(blk interfaces.ReadOnlyBeaconBlock) ([32]byte, error) {
 	var payloadHash [32]byte
-	if IsPreBellatrixVersion(blk.Version()) {
-		return payloadHash, nil
+	if blk.Version() >= version.EPBS {
+		header, err := blk.Body().SignedExecutionPayloadHeader()
+		if err != nil {
+			return payloadHash, err
+		}
+		payload, err := header.Header()
+		if err != nil {
+			return payloadHash, err
+		}
+		return payload.BlockHash(), nil
 	}
-	payload, err := blk.Body().Execution()
-	if err != nil {
-		return payloadHash, err
+	if blk.Version() >= version.Bellatrix {
+		payload, err := blk.Body().Execution()
+		if err != nil {
+			return payloadHash, err
+		}
+		return bytesutil.ToBytes32(payload.BlockHash()), nil
 	}
-	return bytesutil.ToBytes32(payload.BlockHash()), nil
+	return payloadHash, nil
+}
+
+// GetBlockParentHash returns the hash of the parent execution payload
+func GetBlockParentHash(blk interfaces.ReadOnlyBeaconBlock) ([32]byte, error) {
+	var parentHash [32]byte
+	if blk.Version() >= version.EPBS {
+		header, err := blk.Body().SignedExecutionPayloadHeader()
+		if err != nil {
+			return parentHash, err
+		}
+		payload, err := header.Header()
+		if err != nil {
+			return parentHash, err
+		}
+		return payload.ParentBlockHash(), nil
+	}
+	if blk.Version() >= version.Bellatrix {
+		payload, err := blk.Body().Execution()
+		if err != nil {
+			return parentHash, err
+		}
+		return bytesutil.ToBytes32(payload.ParentHash()), nil
+	}
+	return parentHash, nil
 }

beacon-chain/core/blocks/signature.go

@@ -192,7 +192,7 @@ func createAttestationSignatureBatch(
 	descs := make([]string, len(atts))
 	for i, a := range atts {
 		sigs[i] = a.GetSignature()
-		committees, err := helpers.AttestationCommitteesFromState(ctx, beaconState, a)
+		committees, err := helpers.AttestationCommittees(ctx, beaconState, a)
 		if err != nil {
 			return nil, err
 		}

beacon-chain/core/blocks/withdrawals.go

@@ -14,8 +14,8 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
 	"github.com/prysmaticlabs/prysm/v5/crypto/bls"
 	"github.com/prysmaticlabs/prysm/v5/crypto/hash"
-	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
 	"github.com/prysmaticlabs/prysm/v5/encoding/ssz"
+	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 )
@@ -118,14 +118,97 @@ func ValidateBLSToExecutionChange(st state.ReadOnlyBeaconState, signed *ethpb.Si
 	return val, nil
 }
 
+func checkWithdrawalsAgainstPayload(
+	executionData interfaces.ExecutionData,
+	numExpected int,
+	expectedRoot [32]byte,
+) error {
+	var wdRoot [32]byte
+	if executionData.IsBlinded() {
+		r, err := executionData.WithdrawalsRoot()
+		if err != nil {
+			return errors.Wrap(err, "could not get withdrawals root")
+		}
+		copy(wdRoot[:], r)
+	} else {
+		wds, err := executionData.Withdrawals()
+		if err != nil {
+			return errors.Wrap(err, "could not get withdrawals")
+		}
+
+		if len(wds) != numExpected {
+			return fmt.Errorf("execution payload header has %d withdrawals when %d were expected", len(wds), numExpected)
+		}
+
+		wdRoot, err = ssz.WithdrawalSliceRoot(wds, fieldparams.MaxWithdrawalsPerPayload)
+		if err != nil {
+			return errors.Wrap(err, "could not get withdrawals root")
+		}
+	}
+	if expectedRoot != wdRoot {
+		return fmt.Errorf("expected withdrawals root %#x, got %#x", expectedRoot, wdRoot)
+	}
+	return nil
+}
+
+func processWithdrawalStateTransition(
+	st state.BeaconState,
+	expectedWithdrawals []*enginev1.Withdrawal,
+	partialWithdrawalsCount uint64,
+) (err error) {
+	for _, withdrawal := range expectedWithdrawals {
+		err := helpers.DecreaseBalance(st, withdrawal.ValidatorIndex, withdrawal.Amount)
+		if err != nil {
+			return errors.Wrap(err, "could not decrease balance")
+		}
+	}
+	if st.Version() >= version.Electra {
+		if err := st.DequeuePendingPartialWithdrawals(partialWithdrawalsCount); err != nil {
+			return fmt.Errorf("unable to dequeue partial withdrawals from state: %w", err)
+		}
+	}
+
+	if len(expectedWithdrawals) > 0 {
+		if err := st.SetNextWithdrawalIndex(expectedWithdrawals[len(expectedWithdrawals)-1].Index + 1); err != nil {
+			return errors.Wrap(err, "could not set next withdrawal index")
+		}
+	}
+	var nextValidatorIndex primitives.ValidatorIndex
+	if uint64(len(expectedWithdrawals)) < params.BeaconConfig().MaxWithdrawalsPerPayload {
+		nextValidatorIndex, err = st.NextWithdrawalValidatorIndex()
+		if err != nil {
+			return errors.Wrap(err, "could not get next withdrawal validator index")
+		}
+		nextValidatorIndex += primitives.ValidatorIndex(params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep)
+		nextValidatorIndex = nextValidatorIndex % primitives.ValidatorIndex(st.NumValidators())
+	} else {
+		nextValidatorIndex = expectedWithdrawals[len(expectedWithdrawals)-1].ValidatorIndex + 1
+		if nextValidatorIndex == primitives.ValidatorIndex(st.NumValidators()) {
+			nextValidatorIndex = 0
+		}
+	}
+	if err := st.SetNextWithdrawalValidatorIndex(nextValidatorIndex); err != nil {
+		return errors.Wrap(err, "could not set next withdrawal validator index")
+	}
+	return nil
+}
+
 // ProcessWithdrawals processes the validator withdrawals from the provided execution payload
 // into the beacon state.
 //
 // Spec pseudocode definition:
 //
-// def process_withdrawals(state: BeaconState, payload: ExecutionPayload) -> None:
+//	def process_withdrawals(state: BeaconState, payload: ExecutionPayload) -> None:
+//		if state.fork.current_version >= EIP7732_FORK_VERSION :
+//			if not is_parent_block_full(state): # [New in EIP-7732]
+//		 		return
 //
-//	expected_withdrawals, processed_partial_withdrawals_count = get_expected_withdrawals(state) # [Modified in Electra:EIP7251]
+//	    expected_withdrawals, partial_withdrawals_count = get_expected_withdrawals(state)  # [Modified in Electra:EIP7251]
+//
+//		if state.fork.current_version >= EIP7732_FORK_VERSION :
+//			state.latest_withdrawals_root = hash_tree_root(expected_withdrawals) # [New in EIP-7732]
+//		else :
+//	    	assert len(payload.withdrawals) == len(expected_withdrawals)
 //
 //	assert len(payload.withdrawals) == len(expected_withdrawals)
 //
@@ -152,76 +235,39 @@ func ValidateBLSToExecutionChange(st state.ReadOnlyBeaconState, signed *ethpb.Si
 //	    next_validator_index = ValidatorIndex(next_index % len(state.validators))
 //	    state.next_withdrawal_validator_index = next_validator_index
 func ProcessWithdrawals(st state.BeaconState, executionData interfaces.ExecutionData) (state.BeaconState, error) {
-	expectedWithdrawals, processedPartialWithdrawalsCount, err := st.ExpectedWithdrawals()
-	if err != nil {
-		return nil, errors.Wrap(err, "could not get expected withdrawals")
+	if st.Version() >= version.EPBS {
+		IsParentBlockFull, err := st.IsParentBlockFull()
+		if err != nil {
+			return nil, errors.Wrap(err, "could not check if parent block is full")
+		}
+
+		if !IsParentBlockFull {
+			return st, nil
+		}
 	}
 
-	var wdRoot [32]byte
-	if executionData.IsBlinded() {
-		r, err := executionData.WithdrawalsRoot()
-		if err != nil {
-			return nil, errors.Wrap(err, "could not get withdrawals root")
-		}
-		wdRoot = bytesutil.ToBytes32(r)
-	} else {
-		wds, err := executionData.Withdrawals()
-		if err != nil {
-			return nil, errors.Wrap(err, "could not get withdrawals")
-		}
-
-		if len(wds) != len(expectedWithdrawals) {
-			return nil, fmt.Errorf("execution payload header has %d withdrawals when %d were expected", len(wds), len(expectedWithdrawals))
-		}
-
-		wdRoot, err = ssz.WithdrawalSliceRoot(wds, fieldparams.MaxWithdrawalsPerPayload)
-		if err != nil {
-			return nil, errors.Wrap(err, "could not get withdrawals root")
-		}
+	expectedWithdrawals, partialWithdrawalsCount, err := st.ExpectedWithdrawals()
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get expected withdrawals")
 	}
 
 	expectedRoot, err := ssz.WithdrawalSliceRoot(expectedWithdrawals, fieldparams.MaxWithdrawalsPerPayload)
 	if err != nil {
 		return nil, errors.Wrap(err, "could not get expected withdrawals root")
 	}
-	if expectedRoot != wdRoot {
-		return nil, fmt.Errorf("expected withdrawals root %#x, got %#x", expectedRoot, wdRoot)
-	}
 
-	for _, withdrawal := range expectedWithdrawals {
-		err := helpers.DecreaseBalance(st, withdrawal.ValidatorIndex, withdrawal.Amount)
+	if st.Version() >= version.EPBS {
+		err = st.SetLastWithdrawalsRoot(expectedRoot[:])
 		if err != nil {
-			return nil, errors.Wrap(err, "could not decrease balance")
+			return nil, errors.Wrap(err, "could not set withdrawals root")
 		}
-	}
-
-	if st.Version() >= version.Electra {
-		if err := st.DequeuePendingPartialWithdrawals(processedPartialWithdrawalsCount); err != nil {
-			return nil, fmt.Errorf("unable to dequeue partial withdrawals from state: %w", err)
-		}
-	}
-
-	if len(expectedWithdrawals) > 0 {
-		if err := st.SetNextWithdrawalIndex(expectedWithdrawals[len(expectedWithdrawals)-1].Index + 1); err != nil {
-			return nil, errors.Wrap(err, "could not set next withdrawal index")
-		}
-	}
-	var nextValidatorIndex primitives.ValidatorIndex
-	if uint64(len(expectedWithdrawals)) < params.BeaconConfig().MaxWithdrawalsPerPayload {
-		nextValidatorIndex, err = st.NextWithdrawalValidatorIndex()
-		if err != nil {
-			return nil, errors.Wrap(err, "could not get next withdrawal validator index")
-		}
-		nextValidatorIndex += primitives.ValidatorIndex(params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep)
-		nextValidatorIndex = nextValidatorIndex % primitives.ValidatorIndex(st.NumValidators())
 	} else {
-		nextValidatorIndex = expectedWithdrawals[len(expectedWithdrawals)-1].ValidatorIndex + 1
-		if nextValidatorIndex == primitives.ValidatorIndex(st.NumValidators()) {
-			nextValidatorIndex = 0
+		if err := checkWithdrawalsAgainstPayload(executionData, len(expectedWithdrawals), expectedRoot); err != nil {
+			return nil, err
 		}
 	}
-	if err := st.SetNextWithdrawalValidatorIndex(nextValidatorIndex); err != nil {
-		return nil, errors.Wrap(err, "could not set next withdrawal validator index")
+	if err := processWithdrawalStateTransition(st, expectedWithdrawals, partialWithdrawalsCount); err != nil {
+		return nil, err
 	}
 	return st, nil
 }

beacon-chain/core/blocks/withdrawals_test.go

@@ -22,6 +22,7 @@ import (
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 	"github.com/prysmaticlabs/prysm/v5/testing/require"
+	"github.com/prysmaticlabs/prysm/v5/testing/util/random"
 	"github.com/prysmaticlabs/prysm/v5/time/slots"
 )
 
@@ -1167,13 +1168,407 @@ func TestProcessWithdrawals(t *testing.T) {
 						checkPostState(t, test.Control, post)
 					}
 					params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep = saved
-
 				})
 			}
 		})
 	}
 }
 
+func TestProcessWithdrawalsEPBS(t *testing.T) {
+	const (
+		currentEpoch             = primitives.Epoch(10)
+		epochInFuture            = primitives.Epoch(12)
+		epochInPast              = primitives.Epoch(8)
+		numValidators            = 128
+		notWithdrawableIndex     = 127
+		notPartiallyWithdrawable = 126
+		maxSweep                 = uint64(80)
+	)
+	maxEffectiveBalance := params.BeaconConfig().MaxEffectiveBalance
+
+	type args struct {
+		Name                            string
+		NextWithdrawalValidatorIndex    primitives.ValidatorIndex
+		NextWithdrawalIndex             uint64
+		FullWithdrawalIndices           []primitives.ValidatorIndex
+		PendingPartialWithdrawalIndices []primitives.ValidatorIndex
+		Withdrawals                     []*enginev1.Withdrawal
+		PendingPartialWithdrawals       []*ethpb.PendingPartialWithdrawal // Electra
+		LatestBlockHash                 []byte                            // EIP-7732
+	}
+	type control struct {
+		NextWithdrawalValidatorIndex primitives.ValidatorIndex
+		NextWithdrawalIndex          uint64
+		Balances                     map[uint64]uint64
+	}
+	type Test struct {
+		Args    args
+		Control control
+	}
+	executionAddress := func(i primitives.ValidatorIndex) []byte {
+		wc := make([]byte, 20)
+		wc[19] = byte(i)
+		return wc
+	}
+	withdrawalAmount := func(i primitives.ValidatorIndex) uint64 {
+		return maxEffectiveBalance + uint64(i)*100000
+	}
+	fullWithdrawal := func(i primitives.ValidatorIndex, idx uint64) *enginev1.Withdrawal {
+		return &enginev1.Withdrawal{
+			Index:          idx,
+			ValidatorIndex: i,
+			Address:        executionAddress(i),
+			Amount:         withdrawalAmount(i),
+		}
+	}
+	PendingPartialWithdrawal := func(i primitives.ValidatorIndex, idx uint64) *enginev1.Withdrawal {
+		return &enginev1.Withdrawal{
+			Index:          idx,
+			ValidatorIndex: i,
+			Address:        executionAddress(i),
+			Amount:         withdrawalAmount(i) - maxEffectiveBalance,
+		}
+	}
+	tests := []Test{
+		{
+			Args: args{
+				Name:                         "success no withdrawals",
+				NextWithdrawalValidatorIndex: 10,
+				NextWithdrawalIndex:          3,
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 90,
+				NextWithdrawalIndex:          3,
+			},
+		},
+		{
+			Args: args{
+				Name:                         "success one full withdrawal",
+				NextWithdrawalIndex:          3,
+				NextWithdrawalValidatorIndex: 5,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{70},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(70, 3),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 85,
+				NextWithdrawalIndex:          4,
+				Balances:                     map[uint64]uint64{70: 0},
+			},
+		},
+		{
+			Args: args{
+				Name:                            "success one partial withdrawal",
+				NextWithdrawalIndex:             21,
+				NextWithdrawalValidatorIndex:    120,
+				PendingPartialWithdrawalIndices: []primitives.ValidatorIndex{7},
+				Withdrawals: []*enginev1.Withdrawal{
+					PendingPartialWithdrawal(7, 21),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 72,
+				NextWithdrawalIndex:          22,
+				Balances:                     map[uint64]uint64{7: maxEffectiveBalance},
+			},
+		},
+		{
+			Args: args{
+				Name:                         "success many full withdrawals",
+				NextWithdrawalIndex:          22,
+				NextWithdrawalValidatorIndex: 4,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{7, 19, 28, 1},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(7, 22), fullWithdrawal(19, 23), fullWithdrawal(28, 24),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 84,
+				NextWithdrawalIndex:          25,
+				Balances:                     map[uint64]uint64{7: 0, 19: 0, 28: 0},
+			},
+		},
+		{
+			Args: args{
+				Name:                         "less than max sweep at end",
+				NextWithdrawalIndex:          22,
+				NextWithdrawalValidatorIndex: 4,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{80, 81, 82, 83},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(80, 22), fullWithdrawal(81, 23), fullWithdrawal(82, 24),
+					fullWithdrawal(83, 25),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 84,
+				NextWithdrawalIndex:          26,
+				Balances:                     map[uint64]uint64{80: 0, 81: 0, 82: 0, 83: 0},
+			},
+		},
+		{
+			Args: args{
+				Name:                         "less than max sweep and beginning",
+				NextWithdrawalIndex:          22,
+				NextWithdrawalValidatorIndex: 4,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{4, 5, 6},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(4, 22), fullWithdrawal(5, 23), fullWithdrawal(6, 24),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 84,
+				NextWithdrawalIndex:          25,
+				Balances:                     map[uint64]uint64{4: 0, 5: 0, 6: 0},
+			},
+		},
+		{
+			Args: args{
+				Name:                            "success many partial withdrawals",
+				NextWithdrawalIndex:             22,
+				NextWithdrawalValidatorIndex:    4,
+				PendingPartialWithdrawalIndices: []primitives.ValidatorIndex{7, 19, 28},
+				Withdrawals: []*enginev1.Withdrawal{
+					PendingPartialWithdrawal(7, 22), PendingPartialWithdrawal(19, 23), PendingPartialWithdrawal(28, 24),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 84,
+				NextWithdrawalIndex:          25,
+				Balances: map[uint64]uint64{
+					7:  maxEffectiveBalance,
+					19: maxEffectiveBalance,
+					28: maxEffectiveBalance,
+				},
+			},
+		},
+		{
+			Args: args{
+				Name:                            "success many withdrawals",
+				NextWithdrawalIndex:             22,
+				NextWithdrawalValidatorIndex:    88,
+				FullWithdrawalIndices:           []primitives.ValidatorIndex{7, 19, 28},
+				PendingPartialWithdrawalIndices: []primitives.ValidatorIndex{2, 1, 89, 15},
+				Withdrawals: []*enginev1.Withdrawal{
+					PendingPartialWithdrawal(89, 22), PendingPartialWithdrawal(1, 23), PendingPartialWithdrawal(2, 24),
+					fullWithdrawal(7, 25), PendingPartialWithdrawal(15, 26), fullWithdrawal(19, 27),
+					fullWithdrawal(28, 28),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 40,
+				NextWithdrawalIndex:          29,
+				Balances: map[uint64]uint64{
+					7: 0, 19: 0, 28: 0,
+					2: maxEffectiveBalance, 1: maxEffectiveBalance, 89: maxEffectiveBalance,
+					15: maxEffectiveBalance,
+				},
+			},
+		},
+		{
+			Args: args{
+				Name:                            "success many withdrawals with pending partial withdrawals in state",
+				NextWithdrawalIndex:             22,
+				NextWithdrawalValidatorIndex:    88,
+				FullWithdrawalIndices:           []primitives.ValidatorIndex{7, 19, 28},
+				PendingPartialWithdrawalIndices: []primitives.ValidatorIndex{2, 1, 89, 15},
+				Withdrawals: []*enginev1.Withdrawal{
+					PendingPartialWithdrawal(89, 22), PendingPartialWithdrawal(1, 23), PendingPartialWithdrawal(2, 24),
+					fullWithdrawal(7, 25), PendingPartialWithdrawal(15, 26), fullWithdrawal(19, 27),
+					fullWithdrawal(28, 28),
+				},
+				PendingPartialWithdrawals: []*ethpb.PendingPartialWithdrawal{
+					{
+						Index:  11,
+						Amount: withdrawalAmount(11) - maxEffectiveBalance,
+					},
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 40,
+				NextWithdrawalIndex:          29,
+				Balances: map[uint64]uint64{
+					7: 0, 19: 0, 28: 0,
+					2: maxEffectiveBalance, 1: maxEffectiveBalance, 89: maxEffectiveBalance,
+					15: maxEffectiveBalance,
+				},
+			},
+		},
+
+		{
+			Args: args{
+				Name:                         "success more than max fully withdrawals",
+				NextWithdrawalIndex:          22,
+				NextWithdrawalValidatorIndex: 0,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{1, 2, 3, 4, 5, 6, 7, 8, 9, 21, 22, 23, 24, 25, 26, 27, 29, 35, 89},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(1, 22), fullWithdrawal(2, 23), fullWithdrawal(3, 24),
+					fullWithdrawal(4, 25), fullWithdrawal(5, 26), fullWithdrawal(6, 27),
+					fullWithdrawal(7, 28), fullWithdrawal(8, 29), fullWithdrawal(9, 30),
+					fullWithdrawal(21, 31), fullWithdrawal(22, 32), fullWithdrawal(23, 33),
+					fullWithdrawal(24, 34), fullWithdrawal(25, 35), fullWithdrawal(26, 36),
+					fullWithdrawal(27, 37),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 28,
+				NextWithdrawalIndex:          38,
+				Balances: map[uint64]uint64{
+					1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0, 7: 0, 8: 0, 9: 0,
+					21: 0, 22: 0, 23: 0, 24: 0, 25: 0, 26: 0, 27: 0,
+				},
+			},
+		},
+		{
+			Args: args{
+				Name:                            "success more than max partially withdrawals",
+				NextWithdrawalIndex:             22,
+				NextWithdrawalValidatorIndex:    0,
+				PendingPartialWithdrawalIndices: []primitives.ValidatorIndex{1, 2, 3, 4, 5, 6, 7, 8, 9, 21, 22, 23, 24, 25, 26, 27, 29, 35, 89},
+				Withdrawals: []*enginev1.Withdrawal{
+					PendingPartialWithdrawal(1, 22), PendingPartialWithdrawal(2, 23), PendingPartialWithdrawal(3, 24),
+					PendingPartialWithdrawal(4, 25), PendingPartialWithdrawal(5, 26), PendingPartialWithdrawal(6, 27),
+					PendingPartialWithdrawal(7, 28), PendingPartialWithdrawal(8, 29), PendingPartialWithdrawal(9, 30),
+					PendingPartialWithdrawal(21, 31), PendingPartialWithdrawal(22, 32), PendingPartialWithdrawal(23, 33),
+					PendingPartialWithdrawal(24, 34), PendingPartialWithdrawal(25, 35), PendingPartialWithdrawal(26, 36),
+					PendingPartialWithdrawal(27, 37),
+				},
+			},
+			Control: control{
+				NextWithdrawalValidatorIndex: 28,
+				NextWithdrawalIndex:          38,
+				Balances: map[uint64]uint64{
+					1:  maxEffectiveBalance,
+					2:  maxEffectiveBalance,
+					3:  maxEffectiveBalance,
+					4:  maxEffectiveBalance,
+					5:  maxEffectiveBalance,
+					6:  maxEffectiveBalance,
+					7:  maxEffectiveBalance,
+					8:  maxEffectiveBalance,
+					9:  maxEffectiveBalance,
+					21: maxEffectiveBalance,
+					22: maxEffectiveBalance,
+					23: maxEffectiveBalance,
+					24: maxEffectiveBalance,
+					25: maxEffectiveBalance,
+					26: maxEffectiveBalance,
+					27: maxEffectiveBalance,
+				},
+			},
+		},
+		{
+			Args: args{
+				Name:                         "Parent Node is not full",
+				NextWithdrawalIndex:          22,
+				NextWithdrawalValidatorIndex: 4,
+				FullWithdrawalIndices:        []primitives.ValidatorIndex{7, 19, 28, 1},
+				Withdrawals: []*enginev1.Withdrawal{
+					fullWithdrawal(7, 22), fullWithdrawal(19, 23), fullWithdrawal(28, 24),
+				},
+				LatestBlockHash: []byte{1, 2, 3},
+			},
+		},
+	}
+
+	checkPostState := func(t *testing.T, expected control, st state.BeaconState) {
+		l, err := st.NextWithdrawalValidatorIndex()
+		require.NoError(t, err)
+		require.Equal(t, expected.NextWithdrawalValidatorIndex, l)
+
+		n, err := st.NextWithdrawalIndex()
+		require.NoError(t, err)
+		require.Equal(t, expected.NextWithdrawalIndex, n)
+		balances := st.Balances()
+		for idx, bal := range expected.Balances {
+			require.Equal(t, bal, balances[idx])
+		}
+	}
+
+	prepareValidators := func(st state.BeaconState, arguments args) error {
+		validators := make([]*ethpb.Validator, numValidators)
+		if err := st.SetBalances(make([]uint64, numValidators)); err != nil {
+			return err
+		}
+		for i := range validators {
+			v := &ethpb.Validator{}
+			v.EffectiveBalance = maxEffectiveBalance
+			v.WithdrawableEpoch = epochInFuture
+			v.WithdrawalCredentials = make([]byte, 32)
+			v.WithdrawalCredentials[31] = byte(i)
+			if err := st.UpdateBalancesAtIndex(primitives.ValidatorIndex(i), v.EffectiveBalance-uint64(rand.Intn(1000))); err != nil {
+				return err
+			}
+			validators[i] = v
+		}
+		for _, idx := range arguments.FullWithdrawalIndices {
+			if idx != notWithdrawableIndex {
+				validators[idx].WithdrawableEpoch = epochInPast
+			}
+			if err := st.UpdateBalancesAtIndex(idx, withdrawalAmount(idx)); err != nil {
+				return err
+			}
+			validators[idx].WithdrawalCredentials[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
+		}
+		for _, idx := range arguments.PendingPartialWithdrawalIndices {
+			validators[idx].WithdrawalCredentials[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
+			if err := st.UpdateBalancesAtIndex(idx, withdrawalAmount(idx)); err != nil {
+				return err
+			}
+		}
+		return st.SetValidators(validators)
+	}
+
+	for _, test := range tests {
+		t.Run(test.Args.Name, func(t *testing.T) {
+			saved := params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep
+			params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep = maxSweep
+			if test.Args.Withdrawals == nil {
+				test.Args.Withdrawals = make([]*enginev1.Withdrawal, 0)
+			}
+			if test.Args.FullWithdrawalIndices == nil {
+				test.Args.FullWithdrawalIndices = make([]primitives.ValidatorIndex, 0)
+			}
+			if test.Args.PendingPartialWithdrawalIndices == nil {
+				test.Args.PendingPartialWithdrawalIndices = make([]primitives.ValidatorIndex, 0)
+			}
+			slot, err := slots.EpochStart(currentEpoch)
+			require.NoError(t, err)
+			var st state.BeaconState
+			var p interfaces.ExecutionData
+			spb := &ethpb.BeaconStateEPBS{
+				Slot:                         slot,
+				NextWithdrawalValidatorIndex: test.Args.NextWithdrawalValidatorIndex,
+				NextWithdrawalIndex:          test.Args.NextWithdrawalIndex,
+				PendingPartialWithdrawals:    test.Args.PendingPartialWithdrawals,
+				LatestExecutionPayloadHeader: &enginev1.ExecutionPayloadHeaderEPBS{
+					BlockHash: []byte{},
+				},
+				LatestBlockHash: test.Args.LatestBlockHash,
+			}
+			st, err = state_native.InitializeFromProtoUnsafeEpbs(spb)
+			require.NoError(t, err)
+			env := random.ExecutionPayloadEnvelope(t)
+			env.Payload.Withdrawals = test.Args.Withdrawals
+			wp, err := consensusblocks.WrappedROExecutionPayloadEnvelope(env)
+			require.NoError(t, err)
+			p, err = wp.Execution()
+			require.NoError(t, err)
+			err = prepareValidators(st, test.Args)
+			require.NoError(t, err)
+			post, err := blocks.ProcessWithdrawals(st, p)
+			if test.Args.Name == "Parent Node is not full" {
+				require.DeepEqual(t, post, st)
+				require.IsNil(t, err)
+			} else {
+				require.NoError(t, err)
+				checkPostState(t, test.Control, post)
+			}
+			params.BeaconConfig().MaxValidatorsPerWithdrawalsSweep = saved
+		})
+	}
+}
+
 func TestProcessBLSToExecutionChanges(t *testing.T) {
 	spb := &ethpb.BeaconStateCapella{
 		Fork: &ethpb.Fork{

beacon-chain/core/electra/BUILD.bazel

@@ -8,10 +8,8 @@ go_library(
         "consolidations.go",
         "deposits.go",
         "effective_balance_updates.go",
-        "error.go",
         "registry_updates.go",
         "transition.go",
-        "transition_no_verify_sig.go",
         "upgrade.go",
         "validator.go",
         "withdrawals.go",
@@ -56,16 +54,13 @@ go_test(
         "deposit_fuzz_test.go",
         "deposits_test.go",
         "effective_balance_updates_test.go",
-        "error_test.go",
         "export_test.go",
         "registry_updates_test.go",
-        "transition_no_verify_sig_test.go",
         "transition_test.go",
         "upgrade_test.go",
         "validator_test.go",
         "withdrawals_test.go",
     ],
-    data = glob(["testdata/**"]),
     embed = [":go_default_library"],
     deps = [
         "//beacon-chain/core/helpers:go_default_library",
@@ -90,7 +85,6 @@ go_test(
         "@com_github_ethereum_go_ethereum//common:go_default_library",
         "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",
         "@com_github_google_gofuzz//:go_default_library",
-        "@com_github_pkg_errors//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
         "@com_github_sirupsen_logrus//hooks/test:go_default_library",
     ],

beacon-chain/core/electra/churn_test.go

@@ -177,9 +177,9 @@ func TestComputeConsolidationEpochAndUpdateChurn(t *testing.T) {
 				require.NoError(t, err)
 				return s
 			}(t),
-			consolidationBalance:                  helpers.ConsolidationChurnLimit(32000000000000000) + 1,
+			consolidationBalance:                  helpers.ConsolidationChurnLimit(32000000000000000)+1,
 			expectedEpoch:                         18, // Flows into another epoch.
-			expectedConsolidationBalanceToConsume: helpers.ConsolidationChurnLimit(32000000000000000) - 1,
+			expectedConsolidationBalanceToConsume: helpers.ConsolidationChurnLimit(32000000000000000)-1,
 		},
 	}
 

beacon-chain/core/electra/error.go

@@ -1,16 +0,0 @@
-package electra
-
-import "github.com/pkg/errors"
-
-type execReqErr struct {
-	error
-}
-
-// IsExecutionRequestError returns true if the error has `execReqErr`.
-func IsExecutionRequestError(e error) bool {
-	if e == nil {
-		return false
-	}
-	var d execReqErr
-	return errors.As(e, &d)
-}

beacon-chain/core/electra/error_test.go

@@ -1,45 +0,0 @@
-package electra
-
-import (
-	"testing"
-
-	"github.com/pkg/errors"
-)
-
-func TestIsExecutionRequestError(t *testing.T) {
-	tests := []struct {
-		name string
-		err  error
-		want bool
-	}{
-		{
-			name: "nil error",
-			err:  nil,
-			want: false,
-		},
-		{
-			name: "random error",
-			err:  errors.New("some error"),
-			want: false,
-		},
-		{
-			name: "execution request error",
-			err:  execReqErr{errors.New("execution request failed")},
-			want: true,
-		},
-		{
-			name: "wrapped execution request error",
-			err:  errors.Wrap(execReqErr{errors.New("execution request failed")}, "wrapped"),
-			want: true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			got := IsExecutionRequestError(tt.err)
-			if got != tt.want {
-				t.Errorf("IsExecutionRequestError(%v) = %v, want %v", tt.err, got, tt.want)
-			}
-		})
-	}
-}

beacon-chain/core/electra/transition_no_verify_sig_test.go

@@ -1,61 +0,0 @@
-package electra_test
-
-import (
-	"context"
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/electra"
-	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
-	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
-	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/v5/testing/require"
-	"github.com/prysmaticlabs/prysm/v5/testing/util"
-)
-
-func TestProcessOperationsWithNilRequests(t *testing.T) {
-	tests := []struct {
-		name      string
-		modifyBlk func(blockElectra *ethpb.SignedBeaconBlockElectra)
-		errMsg    string
-	}{
-		{
-			name: "Nil deposit request",
-			modifyBlk: func(blk *ethpb.SignedBeaconBlockElectra) {
-				blk.Block.Body.ExecutionRequests.Deposits = []*enginev1.DepositRequest{nil}
-			},
-			errMsg: "nil deposit request",
-		},
-		{
-			name: "Nil withdrawal request",
-			modifyBlk: func(blk *ethpb.SignedBeaconBlockElectra) {
-				blk.Block.Body.ExecutionRequests.Withdrawals = []*enginev1.WithdrawalRequest{nil}
-			},
-			errMsg: "nil withdrawal request",
-		},
-		{
-			name: "Nil consolidation request",
-			modifyBlk: func(blk *ethpb.SignedBeaconBlockElectra) {
-				blk.Block.Body.ExecutionRequests.Consolidations = []*enginev1.ConsolidationRequest{nil}
-			},
-			errMsg: "nil consolidation request",
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			st, ks := util.DeterministicGenesisStateElectra(t, 128)
-			blk, err := util.GenerateFullBlockElectra(st, ks, util.DefaultBlockGenConfig(), 1)
-			require.NoError(t, err)
-
-			tc.modifyBlk(blk)
-
-			b, err := blocks.NewSignedBeaconBlock(blk)
-			require.NoError(t, err)
-
-			require.NoError(t, st.SetSlot(1))
-
-			_, err = electra.ProcessOperations(context.Background(), st, b.Block())
-			require.ErrorContains(t, tc.errMsg, err)
-		})
-	}
-}