Pcli hack

* recover from panics when writing the event stream

---------

Co-authored-by: Kasey Kirkham <kasey@users.noreply.github.com>
(cherry picked from commit 1086bdf2b3)

CHANGELOG.md

@@ -13,13 +13,15 @@ The format is based on Keep a Changelog, and this project adheres to Semantic Ve
 - Light client support: Implement `ComputeFieldRootsForBlockBody`.
 - Light client support: Add light client database changes.
 - Light client support: Implement capella and deneb changes.
-- Electra EIP6110: Queue deposit
 - Light client support: Implement `BlockToLightClientHeader` function.
+- Light client support: Consensus types.
 - GetBeaconStateV2: add Electra case.
 - Implement [consensus-specs/3875](https://github.com/ethereum/consensus-specs/pull/3875)
 - Tests to ensure sepolia config matches the official upstream yaml
 - HTTP endpoint for PublishBlobs
 - GetBlockV2, GetBlindedBlock, ProduceBlockV2, ProduceBlockV3: add Electra case.
+- Add Electra support and tests for light client functions
+- fastssz version bump (better error messages).
 - SSE implementation that sheds stuck clients. [pr](https://github.com/prysmaticlabs/prysm/pull/14413)
 
 ### Changed
@@ -39,7 +41,6 @@ The format is based on Keep a Changelog, and this project adheres to Semantic Ve
 - `grpc-gateway-corsdomain` is renamed to http-cors-domain. The old name can still be used as an alias.
 - `api-timeout` is changed from int flag to duration flag, default value updated.
 - Light client support: abstracted out the light client headers with different versions.
-- Electra EIP6110: Queue deposit requests changes from consensus spec pr #3818
 - `ApplyToEveryValidator` has been changed to prevent misuse bugs, it takes a closure that takes a `ReadOnlyValidator` and returns a raw pointer to a `Validator`. 
 - Removed gorilla mux library and replaced it with net/http updates in go 1.22.
 - Clean up `ProposeBlock` for validator client to reduce cognitive scoring and enable further changes.

WORKSPACE

@@ -227,7 +227,7 @@ filegroup(
     url = "https://github.com/ethereum/EIPs/archive/5480440fe51742ed23342b68cf106cefd427e39d.tar.gz",
 )
 
-consensus_spec_version = "v1.5.0-alpha.7"
+consensus_spec_version = "v1.5.0-alpha.6"
 
 bls_test_version = "v0.1.1"
 
@@ -243,7 +243,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-Vo4+1bsRNYMGXjlpIYKEqt2WPjeGSbjeFQFKVUhf1Yc=",
+    integrity = "sha256-M7u/Ot/Vzorww+dFbHp0cxLyM2mezJjijCzq+LY3uvs=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/general.tar.gz" % consensus_spec_version,
 )
 
@@ -259,7 +259,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-TsQtQVPyQA6htrTjL1cd/oWEkM83aK4Y0pT9W6ssKYU=",
+    integrity = "sha256-deOSeLRsmHXvkRp8n2bs3HXdkGUJWWqu8KFM/QABbZg=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/minimal.tar.gz" % consensus_spec_version,
 )
 
@@ -275,7 +275,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-4g7EijlsIJVKGADlVL6ka9ikcwow8WuKHaABONA0Cxg=",
+    integrity = "sha256-Zz7YCf6XVf57nzSEGq9ToflJFHM0lAGwhd18l9Rf3hA=",
     url = "https://github.com/ethereum/consensus-spec-tests/releases/download/%s/mainnet.tar.gz" % consensus_spec_version,
 )
 
@@ -290,7 +290,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-i5+48P/BqxA+q39OufAiotW2llUq97+4j1++ViI96dM=",
+    integrity = "sha256-BoXckDxXnDcEmAjg/dQgf/tLiJsb6CT0aZvmWHFijrY=",
     strip_prefix = "consensus-specs-" + consensus_spec_version[1:],
     url = "https://github.com/ethereum/consensus-specs/archive/refs/tags/%s.tar.gz" % consensus_spec_version,
 )

api/server/structs/conversions.go

@@ -1476,15 +1476,12 @@ func DepositSnapshotFromConsensus(ds *eth.DepositSnapshot) *DepositSnapshot {
 	}
 }
 
-func PendingDepositsFromConsensus(ds []*eth.PendingDeposit) []*PendingDeposit {
-	deposits := make([]*PendingDeposit, len(ds))
+func PendingBalanceDepositsFromConsensus(ds []*eth.PendingBalanceDeposit) []*PendingBalanceDeposit {
+	deposits := make([]*PendingBalanceDeposit, len(ds))
 	for i, d := range ds {
-		deposits[i] = &PendingDeposit{
-			Pubkey:                hexutil.Encode(d.PublicKey),
-			WithdrawalCredentials: hexutil.Encode(d.WithdrawalCredentials),
-			Amount:                fmt.Sprintf("%d", d.Amount),
-			Signature:             hexutil.Encode(d.Signature),
-			Slot:                  fmt.Sprintf("%d", d.Slot),
+		deposits[i] = &PendingBalanceDeposit{
+			Index:  fmt.Sprintf("%d", d.Index),
+			Amount: fmt.Sprintf("%d", d.Amount),
 		}
 	}
 	return deposits

api/server/structs/conversions_state.go

@@ -722,7 +722,7 @@ func BeaconStateElectraFromConsensus(st beaconState.BeaconState) (*BeaconStateEl
 	if err != nil {
 		return nil, err
 	}
-	pbd, err := st.PendingDeposits()
+	pbd, err := st.PendingBalanceDeposits()
 	if err != nil {
 		return nil, err
 	}
@@ -770,7 +770,7 @@ func BeaconStateElectraFromConsensus(st beaconState.BeaconState) (*BeaconStateEl
 		EarliestExitEpoch:             fmt.Sprintf("%d", eee),
 		ConsolidationBalanceToConsume: fmt.Sprintf("%d", cbtc),
 		EarliestConsolidationEpoch:    fmt.Sprintf("%d", ece),
-		PendingDeposits:               PendingDepositsFromConsensus(pbd),
+		PendingBalanceDeposits:        PendingBalanceDepositsFromConsensus(pbd),
 		PendingPartialWithdrawals:     PendingPartialWithdrawalsFromConsensus(ppw),
 		PendingConsolidations:         PendingConsolidationsFromConsensus(pc),
 	}, nil

api/server/structs/other.go

@@ -257,12 +257,9 @@ type ConsolidationRequest struct {
 	TargetPubkey  string `json:"target_pubkey"`
 }
 
-type PendingDeposit struct {
-	Pubkey                string `json:"pubkey"`
-	WithdrawalCredentials string `json:"withdrawal_credentials"`
-	Amount                string `json:"amount"`
-	Signature             string `json:"signature"`
-	Slot                  string `json:"slot"`
+type PendingBalanceDeposit struct {
+	Index  string `json:"index"`
+	Amount string `json:"amount"`
 }
 
 type PendingPartialWithdrawal struct {

api/server/structs/state.go

@@ -176,7 +176,7 @@ type BeaconStateElectra struct {
 	EarliestExitEpoch             string                         `json:"earliest_exit_epoch"`
 	ConsolidationBalanceToConsume string                         `json:"consolidation_balance_to_consume"`
 	EarliestConsolidationEpoch    string                         `json:"earliest_consolidation_epoch"`
-	PendingDeposits               []*PendingDeposit              `json:"pending_deposits"`
+	PendingBalanceDeposits        []*PendingBalanceDeposit       `json:"pending_balance_deposits"`
 	PendingPartialWithdrawals     []*PendingPartialWithdrawal    `json:"pending_partial_withdrawals"`
 	PendingConsolidations         []*PendingConsolidation        `json:"pending_consolidations"`
 }

beacon-chain/core/altair/deposit.go

@@ -81,7 +81,7 @@ func ProcessDeposits(
 //	  amount=deposit.data.amount,
 //	  signature=deposit.data.signature,
 //	 )
-func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verified bool) (state.BeaconState, error) {
+func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verifySignature bool) (state.BeaconState, error) {
 	if err := blocks.VerifyDeposit(beaconState, deposit); err != nil {
 		if deposit == nil || deposit.Data == nil {
 			return nil, err
@@ -92,7 +92,7 @@ func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verif
 		return nil, err
 	}
 
-	return ApplyDeposit(beaconState, deposit.Data, verified)
+	return ApplyDeposit(beaconState, deposit.Data, verifySignature)
 }
 
 // ApplyDeposit
@@ -115,13 +115,13 @@ func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verif
 //	    # Increase balance by deposit amount
 //	    index = ValidatorIndex(validator_pubkeys.index(pubkey))
 //	    increase_balance(state, index, amount)
-func ApplyDeposit(beaconState state.BeaconState, data *ethpb.Deposit_Data, verified bool) (state.BeaconState, error) {
+func ApplyDeposit(beaconState state.BeaconState, data *ethpb.Deposit_Data, verifySignature bool) (state.BeaconState, error) {
 	pubKey := data.PublicKey
 	amount := data.Amount
 	withdrawalCredentials := data.WithdrawalCredentials
 	index, ok := beaconState.ValidatorIndexByPubkey(bytesutil.ToBytes48(pubKey))
 	if !ok {
-		if !verified {
+		if verifySignature {
 			valid, err := blocks.IsValidDepositSignature(data)
 			if err != nil {
 				return nil, err

beacon-chain/core/blocks/deposit.go

@@ -55,26 +55,12 @@ func BatchVerifyDepositsSignatures(ctx context.Context, deposits []*ethpb.Deposi
 		return false, err
 	}
 
+	verified := false
 	if err := verifyDepositDataWithDomain(ctx, deposits, domain); err != nil {
 		log.WithError(err).Debug("Failed to batch verify deposits signatures, will try individual verify")
-		return false, nil
+		verified = true
 	}
-	return true, nil
-}
-
-// BatchVerifyPendingDepositsSignatures batch verifies pending deposit signatures.
-func BatchVerifyPendingDepositsSignatures(ctx context.Context, deposits []*ethpb.PendingDeposit) (bool, error) {
-	var err error
-	domain, err := signing.ComputeDomain(params.BeaconConfig().DomainDeposit, nil, nil)
-	if err != nil {
-		return false, err
-	}
-
-	if err := verifyPendingDepositDataWithDomain(ctx, deposits, domain); err != nil {
-		log.WithError(err).Debug("Failed to batch verify deposits signatures, will try individual verify")
-		return false, nil
-	}
-	return true, nil
+	return verified, nil
 }
 
 // IsValidDepositSignature returns whether deposit_data is valid
@@ -173,44 +159,3 @@ func verifyDepositDataWithDomain(ctx context.Context, deps []*ethpb.Deposit, dom
 	}
 	return nil
 }
-
-func verifyPendingDepositDataWithDomain(ctx context.Context, deps []*ethpb.PendingDeposit, domain []byte) error {
-	if len(deps) == 0 {
-		return nil
-	}
-	pks := make([]bls.PublicKey, len(deps))
-	sigs := make([][]byte, len(deps))
-	msgs := make([][32]byte, len(deps))
-	for i, dep := range deps {
-		if ctx.Err() != nil {
-			return ctx.Err()
-		}
-		if dep == nil {
-			return errors.New("nil deposit")
-		}
-		dpk, err := bls.PublicKeyFromBytes(dep.PublicKey)
-		if err != nil {
-			return err
-		}
-		pks[i] = dpk
-		sigs[i] = dep.Signature
-		depositMessage := &ethpb.DepositMessage{
-			PublicKey:             dep.PublicKey,
-			WithdrawalCredentials: dep.WithdrawalCredentials,
-			Amount:                dep.Amount,
-		}
-		sr, err := signing.ComputeSigningRoot(depositMessage, domain)
-		if err != nil {
-			return err
-		}
-		msgs[i] = sr
-	}
-	verify, err := bls.VerifyMultipleSignatures(sigs, msgs, pks)
-	if err != nil {
-		return errors.Errorf("could not verify multiple signatures: %v", err)
-	}
-	if !verify {
-		return errors.New("one or more deposit signatures did not verify")
-	}
-	return nil
-}

beacon-chain/core/blocks/deposit_test.go

@@ -17,41 +17,6 @@ import (
 )
 
 func TestBatchVerifyDepositsSignatures_Ok(t *testing.T) {
-	sk, err := bls.RandKey()
-	require.NoError(t, err)
-	domain, err := signing.ComputeDomain(params.BeaconConfig().DomainDeposit, nil, nil)
-	require.NoError(t, err)
-	deposit := &ethpb.Deposit{
-		Data: &ethpb.Deposit_Data{
-			PublicKey:             sk.PublicKey().Marshal(),
-			WithdrawalCredentials: make([]byte, 32),
-			Amount:                3000,
-		},
-	}
-	sr, err := signing.ComputeSigningRoot(&ethpb.DepositMessage{
-		PublicKey:             deposit.Data.PublicKey,
-		WithdrawalCredentials: deposit.Data.WithdrawalCredentials,
-		Amount:                3000,
-	}, domain)
-	require.NoError(t, err)
-	sig := sk.Sign(sr[:])
-	deposit.Data.Signature = sig.Marshal()
-	leaf, err := deposit.Data.HashTreeRoot()
-	require.NoError(t, err)
-	// We then create a merkle branch for the test.
-	depositTrie, err := trie.GenerateTrieFromItems([][]byte{leaf[:]}, params.BeaconConfig().DepositContractTreeDepth)
-	require.NoError(t, err, "Could not generate trie")
-	proof, err := depositTrie.MerkleProof(0)
-	require.NoError(t, err, "Could not generate proof")
-
-	deposit.Proof = proof
-	require.NoError(t, err)
-	verified, err := blocks.BatchVerifyDepositsSignatures(context.Background(), []*ethpb.Deposit{deposit})
-	require.NoError(t, err)
-	require.Equal(t, true, verified)
-}
-
-func TestBatchVerifyDepositsSignatures_InvalidSignature(t *testing.T) {
 	deposit := &ethpb.Deposit{
 		Data: &ethpb.Deposit_Data{
 			PublicKey:             bytesutil.PadTo([]byte{1, 2, 3}, 48),
@@ -69,9 +34,9 @@ func TestBatchVerifyDepositsSignatures_InvalidSignature(t *testing.T) {
 
 	deposit.Proof = proof
 	require.NoError(t, err)
-	verified, err := blocks.BatchVerifyDepositsSignatures(context.Background(), []*ethpb.Deposit{deposit})
+	ok, err := blocks.BatchVerifyDepositsSignatures(context.Background(), []*ethpb.Deposit{deposit})
 	require.NoError(t, err)
-	require.Equal(t, false, verified)
+	require.Equal(t, true, ok)
 }
 
 func TestVerifyDeposit_MerkleBranchFailsVerification(t *testing.T) {

beacon-chain/core/electra/BUILD.bazel

@@ -32,13 +32,11 @@ go_library(
         "//consensus-types/interfaces:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//contracts/deposit:go_default_library",
-        "//crypto/bls/common:go_default_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",
-        "//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",
@@ -67,13 +65,11 @@ go_test(
         "//beacon-chain/core/time:go_default_library",
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",
-        "//beacon-chain/state/testing:go_default_library",
         "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",
         "//consensus-types/blocks:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//crypto/bls:go_default_library",
-        "//crypto/bls/common:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",

beacon-chain/core/electra/consolidations_test.go

@@ -201,6 +201,38 @@ func TestProcessPendingConsolidations(t *testing.T) {
 	}
 }
 
+func stateWithActiveBalanceETH(t *testing.T, balETH uint64) state.BeaconState {
+	gwei := balETH * 1_000_000_000
+	balPerVal := params.BeaconConfig().MinActivationBalance
+	numVals := gwei / balPerVal
+
+	vals := make([]*eth.Validator, numVals)
+	bals := make([]uint64, numVals)
+	for i := uint64(0); i < numVals; i++ {
+		wc := make([]byte, 32)
+		wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
+		wc[31] = byte(i)
+		vals[i] = &eth.Validator{
+			ActivationEpoch:       0,
+			ExitEpoch:             params.BeaconConfig().FarFutureEpoch,
+			EffectiveBalance:      balPerVal,
+			WithdrawalCredentials: wc,
+		}
+		bals[i] = balPerVal
+	}
+	st, err := state_native.InitializeFromProtoUnsafeElectra(&eth.BeaconStateElectra{
+		Slot:       10 * params.BeaconConfig().SlotsPerEpoch,
+		Validators: vals,
+		Balances:   bals,
+		Fork: &eth.Fork{
+			CurrentVersion: params.BeaconConfig().ElectraForkVersion,
+		},
+	})
+	require.NoError(t, err)
+
+	return st
+}
+
 func TestProcessConsolidationRequests(t *testing.T) {
 	tests := []struct {
 		name     string

beacon-chain/core/electra/deposits.go

@@ -2,6 +2,7 @@ package electra
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/blocks"
@@ -16,7 +17,6 @@ import (
 	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
 	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 	"github.com/prysmaticlabs/prysm/v5/time/slots"
 	log "github.com/sirupsen/logrus"
 )
@@ -82,7 +82,7 @@ func ProcessDeposits(
 //	  amount=deposit.data.amount,
 //	  signature=deposit.data.signature,
 //	 )
-func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verified bool) (state.BeaconState, error) {
+func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verifySignature bool) (state.BeaconState, error) {
 	if err := blocks.VerifyDeposit(beaconState, deposit); err != nil {
 		if deposit == nil || deposit.Data == nil {
 			return nil, err
@@ -92,47 +92,37 @@ func ProcessDeposit(beaconState state.BeaconState, deposit *ethpb.Deposit, verif
 	if err := beaconState.SetEth1DepositIndex(beaconState.Eth1DepositIndex() + 1); err != nil {
 		return nil, err
 	}
-	return ApplyDeposit(beaconState, deposit.Data, verified)
+	return ApplyDeposit(beaconState, deposit.Data, verifySignature)
 }
 
 // ApplyDeposit
-// def apply_deposit(state: BeaconState,
+// def apply_deposit(state: BeaconState, pubkey: BLSPubkey, withdrawal_credentials: Bytes32, amount: uint64, signature: BLSSignature) -> None:
+// validator_pubkeys = [v.pubkey for v in state.validators]
+// if pubkey not in validator_pubkeys:
 //
-//	              pubkey: BLSPubkey,
-//	              withdrawal_credentials: Bytes32,
-//	              amount: uint64,
-//	              signature: BLSSignature) -> None:
-//	validator_pubkeys = [v.pubkey for v in state.validators]
-//	if pubkey not in validator_pubkeys:
-//	    # Verify the deposit signature (proof of possession) which is not checked by the deposit contract
-//	    if is_valid_deposit_signature(pubkey, withdrawal_credentials, amount, signature):
-//	        add_validator_to_registry(state, pubkey, withdrawal_credentials, Gwei(0))  # [Modified in Electra:EIP7251]
-//	        # [New in Electra:EIP7251]
-//	        state.pending_deposits.append(PendingDeposit(
-//	            pubkey=pubkey,
-//	            withdrawal_credentials=withdrawal_credentials,
-//	            amount=amount,
-//	            signature=signature,
-//	            slot=GENESIS_SLOT,
-//	        ))
-//	else:
-//	    # Increase balance by deposit amount
-//	    # [Modified in Electra:EIP7251]
-//	    state.pending_deposits.append(PendingDeposit(
-//	        pubkey=pubkey,
-//	        withdrawal_credentials=withdrawal_credentials,
-//	        amount=amount,
-//	        signature=signature,
-//	        slot=GENESIS_SLOT
-//	    ))
-func ApplyDeposit(beaconState state.BeaconState, data *ethpb.Deposit_Data, verified bool) (state.BeaconState, error) {
+//	# Verify the deposit signature (proof of possession) which is not checked by the deposit contract
+//	if is_valid_deposit_signature(pubkey, withdrawal_credentials, amount, signature):
+//	  add_validator_to_registry(state, pubkey, withdrawal_credentials, amount)
+//
+// else:
+//
+//	# Increase balance by deposit amount
+//	index = ValidatorIndex(validator_pubkeys.index(pubkey))
+//	state.pending_balance_deposits.append(PendingBalanceDeposit(index=index, amount=amount))  # [Modified in Electra:EIP-7251]
+//	# Check if valid deposit switch to compounding credentials
+//
+// if ( is_compounding_withdrawal_credential(withdrawal_credentials) and has_eth1_withdrawal_credential(state.validators[index])
+//
+//	 and is_valid_deposit_signature(pubkey, withdrawal_credentials, amount, signature)
+//	):
+//	 switch_to_compounding_validator(state, index)
+func ApplyDeposit(beaconState state.BeaconState, data *ethpb.Deposit_Data, verifySignature bool) (state.BeaconState, error) {
 	pubKey := data.PublicKey
 	amount := data.Amount
 	withdrawalCredentials := data.WithdrawalCredentials
-	signature := data.Signature
-	_, ok := beaconState.ValidatorIndexByPubkey(bytesutil.ToBytes48(pubKey))
+	index, ok := beaconState.ValidatorIndexByPubkey(bytesutil.ToBytes48(pubKey))
 	if !ok {
-		if !verified {
+		if verifySignature {
 			valid, err := IsValidDepositSignature(data)
 			if err != nil {
 				return nil, errors.Wrap(err, "could not verify deposit signature")
@@ -141,20 +131,32 @@ func ApplyDeposit(beaconState state.BeaconState, data *ethpb.Deposit_Data, verif
 				return beaconState, nil
 			}
 		}
-
-		if err := AddValidatorToRegistry(beaconState, pubKey, withdrawalCredentials, 0); err != nil { // # [Modified in Electra:EIP7251]
+		if err := AddValidatorToRegistry(beaconState, pubKey, withdrawalCredentials, amount); err != nil {
 			return nil, errors.Wrap(err, "could not add validator to registry")
 		}
-	}
-	// no validation on top-ups (phase0 feature). no validation before state change
-	if err := beaconState.AppendPendingDeposit(&ethpb.PendingDeposit{
-		PublicKey:             pubKey,
-		WithdrawalCredentials: withdrawalCredentials,
-		Amount:                amount,
-		Signature:             signature,
-		Slot:                  params.BeaconConfig().GenesisSlot,
-	}); err != nil {
-		return nil, err
+	} else {
+		// no validation on top-ups (phase0 feature). no validation before state change
+		if err := beaconState.AppendPendingBalanceDeposit(index, amount); err != nil {
+			return nil, err
+		}
+		val, err := beaconState.ValidatorAtIndex(index)
+		if err != nil {
+			return nil, err
+		}
+		if helpers.IsCompoundingWithdrawalCredential(withdrawalCredentials) && helpers.HasETH1WithdrawalCredential(val) {
+			if verifySignature {
+				valid, err := IsValidDepositSignature(data)
+				if err != nil {
+					return nil, errors.Wrap(err, "could not verify deposit signature")
+				}
+				if !valid {
+					return beaconState, nil
+				}
+			}
+			if err := SwitchToCompoundingValidator(beaconState, index); err != nil {
+				return nil, errors.Wrap(err, "could not switch to compound validator")
+			}
+		}
 	}
 	return beaconState, nil
 }
@@ -183,78 +185,47 @@ func verifyDepositDataSigningRoot(obj *ethpb.Deposit_Data, domain []byte) error
 	return deposit.VerifyDepositSignature(obj, domain)
 }
 
-// ProcessPendingDeposits implements the spec definition below. This method mutates the state.
-// Iterating over `pending_deposits` queue this function runs the following checks before applying pending deposit:
-// 1. All Eth1 bridge deposits are processed before the first deposit request gets processed.
-// 2. Deposit position in the queue is finalized.
-// 3. Deposit does not exceed the `MAX_PENDING_DEPOSITS_PER_EPOCH` limit.
-// 4. Deposit does not exceed the activation churn limit.
+// ProcessPendingBalanceDeposits implements the spec definition below. This method mutates the state.
 //
 // Spec definition:
 //
-//		def process_pending_deposits(state: BeaconState) -> None:
-//	   available_for_processing = state.deposit_balance_to_consume + get_activation_exit_churn_limit(state)
-//	   processed_amount = 0
-//	   next_deposit_index = 0
-//	   deposits_to_postpone = []
-//	   is_churn_limit_reached = False
-//	   finalized_slot = compute_start_slot_at_epoch(state.finalized_checkpoint.epoch)
+//	def process_pending_balance_deposits(state: BeaconState) -> None:
+//	    available_for_processing = state.deposit_balance_to_consume + get_activation_exit_churn_limit(state)
+//	    processed_amount = 0
+//	    next_deposit_index = 0
+//	    deposits_to_postpone = []
 //
-//	   for deposit in state.pending_deposits:
-//	       # Do not process deposit requests if Eth1 bridge deposits are not yet applied.
-//	       if (
-//	           # Is deposit request
-//	           deposit.slot > GENESIS_SLOT and
-//	           # There are pending Eth1 bridge deposits
-//	           state.eth1_deposit_index < state.deposit_requests_start_index
-//	       ):
-//	           break
+//	    for deposit in state.pending_balance_deposits:
+//	        validator = state.validators[deposit.index]
+//	        # Validator is exiting, postpone the deposit until after withdrawable epoch
+//	        if validator.exit_epoch < FAR_FUTURE_EPOCH:
+//	            if get_current_epoch(state) <= validator.withdrawable_epoch:
+//	                deposits_to_postpone.append(deposit)
+//	            # Deposited balance will never become active. Increase balance but do not consume churn
+//	            else:
+//	                increase_balance(state, deposit.index, deposit.amount)
+//	        # Validator is not exiting, attempt to process deposit
+//	        else:
+//	            # Deposit does not fit in the churn, no more deposit processing in this epoch.
+//	            if processed_amount + deposit.amount > available_for_processing:
+//	                break
+//	            # Deposit fits in the churn, process it. Increase balance and consume churn.
+//	            else:
+//	                increase_balance(state, deposit.index, deposit.amount)
+//	                processed_amount += deposit.amount
+//	        # Regardless of how the deposit was handled, we move on in the queue.
+//	        next_deposit_index += 1
 //
-//	       # Check if deposit has been finalized, otherwise, stop processing.
-//	       if deposit.slot > finalized_slot:
-//	           break
+//	    state.pending_balance_deposits = state.pending_balance_deposits[next_deposit_index:]
 //
-//	       # Check if number of processed deposits has not reached the limit, otherwise, stop processing.
-//	       if next_deposit_index >= MAX_PENDING_DEPOSITS_PER_EPOCH:
-//	           break
+//	    if len(state.pending_balance_deposits) == 0:
+//	        state.deposit_balance_to_consume = Gwei(0)
+//	    else:
+//	        state.deposit_balance_to_consume = available_for_processing - processed_amount
 //
-//	       # Read validator state
-//	       is_validator_exited = False
-//	       is_validator_withdrawn = False
-//	       validator_pubkeys = [v.pubkey for v in state.validators]
-//	       if deposit.pubkey in validator_pubkeys:
-//	           validator = state.validators[ValidatorIndex(validator_pubkeys.index(deposit.pubkey))]
-//	           is_validator_exited = validator.exit_epoch < FAR_FUTURE_EPOCH
-//	           is_validator_withdrawn = validator.withdrawable_epoch < get_current_epoch(state)
-//
-//	       if is_validator_withdrawn:
-//	           # Deposited balance will never become active. Increase balance but do not consume churn
-//	           apply_pending_deposit(state, deposit)
-//	       elif is_validator_exited:
-//	           # Validator is exiting, postpone the deposit until after withdrawable epoch
-//	           deposits_to_postpone.append(deposit)
-//	       else:
-//	           # Check if deposit fits in the churn, otherwise, do no more deposit processing in this epoch.
-//	           is_churn_limit_reached = processed_amount + deposit.amount > available_for_processing
-//	           if is_churn_limit_reached:
-//	               break
-//
-//	           # Consume churn and apply deposit.
-//	           processed_amount += deposit.amount
-//	           apply_pending_deposit(state, deposit)
-//
-//	       # Regardless of how the deposit was handled, we move on in the queue.
-//	       next_deposit_index += 1
-//
-//	   state.pending_deposits = state.pending_deposits[next_deposit_index:] + deposits_to_postpone
-//
-//	   # Accumulate churn only if the churn limit has been hit.
-//	   if is_churn_limit_reached:
-//	       state.deposit_balance_to_consume = available_for_processing - processed_amount
-//	   else:
-//	       state.deposit_balance_to_consume = Gwei(0)
-func ProcessPendingDeposits(ctx context.Context, st state.BeaconState, activeBalance primitives.Gwei) error {
-	_, span := trace.StartSpan(ctx, "electra.ProcessPendingDeposits")
+//	    state.pending_balance_deposits += deposits_to_postpone
+func ProcessPendingBalanceDeposits(ctx context.Context, st state.BeaconState, activeBalance primitives.Gwei) error {
+	_, span := trace.StartSpan(ctx, "electra.ProcessPendingBalanceDeposits")
 	defer span.End()
 
 	if st == nil || st.IsNil() {
@@ -267,265 +238,99 @@ func ProcessPendingDeposits(ctx context.Context, st state.BeaconState, activeBal
 	}
 	availableForProcessing := depBalToConsume + helpers.ActivationExitChurnLimit(activeBalance)
 	processedAmount := uint64(0)
-	nextDepositIndex := uint64(0)
-	var depositsToPostpone []*eth.PendingDeposit
+	nextDepositIndex := 0
+	var depositsToPostpone []*eth.PendingBalanceDeposit
 
-	deposits, err := st.PendingDeposits()
+	deposits, err := st.PendingBalanceDeposits()
 	if err != nil {
 		return err
 	}
-	isChurnLimitReached := false
-	finalizedSlot, err := slots.EpochStart(st.FinalizedCheckpoint().Epoch)
-	if err != nil {
-		return errors.Wrap(err, "could not get finalized slot")
-	}
+
 	// constants
 	ffe := params.BeaconConfig().FarFutureEpoch
-	curEpoch := slots.ToEpoch(st.Slot())
+	nextEpoch := slots.ToEpoch(st.Slot()) + 1
 
-	// Slice to collect deposits needing signature verification
-	var depositsToVerify []*ethpb.PendingDeposit
-	for _, pendingDeposit := range deposits {
-		startIndex, err := st.DepositRequestsStartIndex()
+	for _, balanceDeposit := range deposits {
+		v, err := st.ValidatorAtIndexReadOnly(balanceDeposit.Index)
 		if err != nil {
-			return errors.Wrap(err, "could not get starting pendingDeposit index")
+			return fmt.Errorf("failed to fetch validator at index: %w", err)
 		}
 
-		// Do not process pendingDeposit requests if Eth1 bridge deposits are not yet applied.
-		if pendingDeposit.Slot > params.BeaconConfig().GenesisSlot && st.Eth1DepositIndex() < startIndex {
-			break
-		}
-
-		// Check if pendingDeposit has been finalized, otherwise, stop processing.
-		if pendingDeposit.Slot > finalizedSlot {
-			break
-		}
-
-		// Check if number of processed deposits has not reached the limit, otherwise, stop processing.
-		if nextDepositIndex >= params.BeaconConfig().MaxPendingDepositsPerEpoch {
-			break
-		}
-
-		var isValidatorExited bool
-		var isValidatorWithdrawn bool
-		index, found := st.ValidatorIndexByPubkey(bytesutil.ToBytes48(pendingDeposit.PublicKey))
-		if found {
-			val, err := st.ValidatorAtIndexReadOnly(index)
-			if err != nil {
-				return errors.Wrap(err, "could not get validator")
+		// If the validator is currently exiting, postpone the deposit until after the withdrawable
+		// epoch.
+		if v.ExitEpoch() < ffe {
+			if nextEpoch <= v.WithdrawableEpoch() {
+				depositsToPostpone = append(depositsToPostpone, balanceDeposit)
+			} else {
+				// The deposited balance will never become active. Therefore, we increase the balance but do
+				// not consume the churn.
+				if err := helpers.IncreaseBalance(st, balanceDeposit.Index, balanceDeposit.Amount); err != nil {
+					return err
+				}
 			}
-			isValidatorExited = val.ExitEpoch() < ffe
-			isValidatorWithdrawn = val.WithdrawableEpoch() < curEpoch
-		}
-
-		if isValidatorWithdrawn {
-			// Deposited balance will never become active. Increase balance but do not consume churn
-			if err := ApplyPendingDeposit(ctx, st, pendingDeposit); err != nil {
-				return errors.Wrap(err, "could not apply pending deposit")
-			}
-		} else if isValidatorExited {
-			// Validator is exiting, postpone the pendingDeposit until after withdrawable epoch
-			depositsToPostpone = append(depositsToPostpone, pendingDeposit)
 		} else {
-			// Check if pendingDeposit fits in the churn, otherwise, do no more pendingDeposit processing in this epoch.
-			isChurnLimitReached = primitives.Gwei(processedAmount+pendingDeposit.Amount) > availableForProcessing
-			if isChurnLimitReached { // Is churn limit reached?
+			// Validator is not exiting, attempt to process deposit.
+			if primitives.Gwei(processedAmount+balanceDeposit.Amount) > availableForProcessing {
 				break
 			}
-			// Consume churn and apply pendingDeposit.
-			processedAmount += pendingDeposit.Amount
-			if found {
-				if err := helpers.IncreaseBalance(st, index, pendingDeposit.Amount); err != nil {
-					return errors.Wrap(err, "could not increase balance")
-				}
-			} else {
-				// Collect deposit for batch signature verification
-				depositsToVerify = append(depositsToVerify, pendingDeposit)
+			// Deposit fits in churn, process it. Increase balance and consume churn.
+			if err := helpers.IncreaseBalance(st, balanceDeposit.Index, balanceDeposit.Amount); err != nil {
+				return err
 			}
+			processedAmount += balanceDeposit.Amount
 		}
 
-		// Regardless of how the pendingDeposit was handled, we move on in the queue.
+		// Regardless of how the deposit was handled, we move on in the queue.
 		nextDepositIndex++
 	}
 
-	// Perform batch signature verification on deposits on unfound validators
-	if err = batchProcessNewPendingDeposits(ctx, st, depositsToPostpone); err != nil {
-		return errors.Wrap(err, "could not process pending deposits with new public keys")
+	// Combined operation:
+	// - state.pending_balance_deposits = state.pending_balance_deposits[next_deposit_index:]
+	// - state.pending_balance_deposits += deposits_to_postpone
+	// However, the number of remaining deposits must be maintained to properly update the deposit
+	// balance to consume.
+	numRemainingDeposits := len(deposits[nextDepositIndex:])
+	deposits = append(deposits[nextDepositIndex:], depositsToPostpone...)
+	if err := st.SetPendingBalanceDeposits(deposits); err != nil {
+		return err
 	}
 
-	// Combined operation:
-	// - state.pending_deposits = state.pending_deposits[next_deposit_index:]
-	// - state.pending_deposits += deposits_to_postpone
-	// However, the number of remaining deposits must be maintained to properly update the pendingDeposit
-	// balance to consume.
-	deposits = append(deposits[nextDepositIndex:], depositsToPostpone...)
-	if err := st.SetPendingDeposits(deposits); err != nil {
-		return errors.Wrap(err, "could not set pending deposits")
-	}
-	// Accumulate churn only if the churn limit has been hit.
-	if isChurnLimitReached {
+	if numRemainingDeposits == 0 {
+		return st.SetDepositBalanceToConsume(0)
+	} else {
 		return st.SetDepositBalanceToConsume(availableForProcessing - primitives.Gwei(processedAmount))
 	}
-	return st.SetDepositBalanceToConsume(0)
-}
-
-// batchProcessNewPendingDeposits should only be used to process new deposits that require validator registration
-func batchProcessNewPendingDeposits(ctx context.Context, st state.BeaconState, depositsToVerify []*ethpb.PendingDeposit) error {
-	if len(depositsToVerify) > 0 {
-		verified, err := blocks.BatchVerifyPendingDepositsSignatures(ctx, depositsToVerify)
-		if err != nil {
-			return errors.Wrap(err, "could not batch verify deposit signatures")
-		}
-		for _, dep := range depositsToVerify {
-			if !verified {
-				verified, err = blocks.IsValidDepositSignature(&ethpb.Deposit_Data{
-					PublicKey:             bytesutil.SafeCopyBytes(dep.PublicKey),
-					WithdrawalCredentials: bytesutil.SafeCopyBytes(dep.WithdrawalCredentials),
-					Amount:                dep.Amount,
-					Signature:             bytesutil.SafeCopyBytes(dep.Signature),
-				})
-				if err != nil {
-					return errors.Wrap(err, "could not verify deposit signature")
-				}
-			}
-			if verified {
-				if err := AddValidatorToRegistry(st, dep.PublicKey, dep.WithdrawalCredentials, dep.Amount); err != nil {
-					return errors.Wrap(err, "could not add validator to registry")
-				}
-			}
-		}
-	}
-	return nil
-}
-
-// ApplyPendingDeposit implements the spec definition below.
-//
-// Spec Definition:
-//
-// def apply_pending_deposit(state: BeaconState, deposit: PendingDeposit) -> None:
-//
-//	"""
-//	Applies ``deposit`` to the ``state``.
-//	"""
-//	validator_pubkeys = [v.pubkey for v in state.validators]
-//	if deposit.pubkey not in validator_pubkeys:
-//	    # Verify the deposit signature (proof of possession) which is not checked by the deposit contract
-//	    if is_valid_deposit_signature(
-//	        deposit.pubkey,
-//	        deposit.withdrawal_credentials,
-//	        deposit.amount,
-//	        deposit.signature
-//	    ):
-//	        add_validator_to_registry(state, deposit.pubkey, deposit.withdrawal_credentials, deposit.amount)
-//	else:
-//	    validator_index = ValidatorIndex(validator_pubkeys.index(deposit.pubkey))
-//	    # Increase balance
-//	    increase_balance(state, validator_index, deposit.amount)
-func ApplyPendingDeposit(ctx context.Context, st state.BeaconState, deposit *ethpb.PendingDeposit) error {
-	_, span := trace.StartSpan(ctx, "electra.ApplyPendingDeposit")
-	defer span.End()
-	index, ok := st.ValidatorIndexByPubkey(bytesutil.ToBytes48(deposit.PublicKey))
-	if !ok {
-		verified, err := blocks.IsValidDepositSignature(&ethpb.Deposit_Data{
-			PublicKey:             bytesutil.SafeCopyBytes(deposit.PublicKey),
-			WithdrawalCredentials: bytesutil.SafeCopyBytes(deposit.WithdrawalCredentials),
-			Amount:                deposit.Amount,
-			Signature:             bytesutil.SafeCopyBytes(deposit.Signature),
-		})
-		if err != nil {
-			return errors.Wrap(err, "could not verify deposit signature")
-		}
-
-		if verified {
-			if err := AddValidatorToRegistry(st, deposit.PublicKey, deposit.WithdrawalCredentials, deposit.Amount); err != nil {
-				return errors.Wrap(err, "could not add validator to registry")
-			}
-		}
-		return nil
-	}
-	return helpers.IncreaseBalance(st, index, deposit.Amount)
-}
-
-// AddValidatorToRegistry updates the beacon state with validator information
-// def add_validator_to_registry(state: BeaconState, pubkey: BLSPubkey, withdrawal_credentials: Bytes32, amount: uint64) -> None:
-//
-//	index = get_index_for_new_validator(state)
-//	validator = get_validator_from_deposit(pubkey, withdrawal_credentials, amount)  # [Modified in Electra:EIP7251]
-//	set_or_append_list(state.validators, index, validator)
-//	set_or_append_list(state.balances, index, amount)
-//	set_or_append_list(state.previous_epoch_participation, index, ParticipationFlags(0b0000_0000))
-//	set_or_append_list(state.current_epoch_participation, index, ParticipationFlags(0b0000_0000))
-//	set_or_append_list(state.inactivity_scores, index, uint64(0))
-func AddValidatorToRegistry(beaconState state.BeaconState, pubKey []byte, withdrawalCredentials []byte, amount uint64) error {
-	val := GetValidatorFromDeposit(pubKey, withdrawalCredentials, amount)
-	if err := beaconState.AppendValidator(val); err != nil {
-		return err
-	}
-	if err := beaconState.AppendBalance(amount); err != nil {
-		return err
-	}
-
-	// only active in altair and only when it's a new validator (after append balance)
-	if beaconState.Version() >= version.Altair {
-		if err := beaconState.AppendInactivityScore(0); err != nil {
-			return err
-		}
-		if err := beaconState.AppendPreviousParticipationBits(0); err != nil {
-			return err
-		}
-		if err := beaconState.AppendCurrentParticipationBits(0); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// GetValidatorFromDeposit gets a new validator object with provided parameters
-//
-// def get_validator_from_deposit(pubkey: BLSPubkey, withdrawal_credentials: Bytes32, amount: uint64) -> Validator:
-//
-//	validator = Validator(
-//	    pubkey=pubkey,
-//	    withdrawal_credentials=withdrawal_credentials,
-//	    activation_eligibility_epoch=FAR_FUTURE_EPOCH,
-//	    activation_epoch=FAR_FUTURE_EPOCH,
-//	    exit_epoch=FAR_FUTURE_EPOCH,
-//	    withdrawable_epoch=FAR_FUTURE_EPOCH,
-//	    effective_balance=Gwei(0),
-//	)
-//
-//	# [Modified in Electra:EIP7251]
-//	max_effective_balance = get_max_effective_balance(validator)
-//	validator.effective_balance = min(amount - amount % EFFECTIVE_BALANCE_INCREMENT, max_effective_balance)
-//
-//	return validator
-func GetValidatorFromDeposit(pubKey []byte, withdrawalCredentials []byte, amount uint64) *ethpb.Validator {
-	validator := &ethpb.Validator{
-		PublicKey:                  pubKey,
-		WithdrawalCredentials:      withdrawalCredentials,
-		ActivationEligibilityEpoch: params.BeaconConfig().FarFutureEpoch,
-		ActivationEpoch:            params.BeaconConfig().FarFutureEpoch,
-		ExitEpoch:                  params.BeaconConfig().FarFutureEpoch,
-		WithdrawableEpoch:          params.BeaconConfig().FarFutureEpoch,
-		EffectiveBalance:           0,
-	}
-	maxEffectiveBalance := helpers.ValidatorMaxEffectiveBalance(validator)
-	validator.EffectiveBalance = min(amount-(amount%params.BeaconConfig().EffectiveBalanceIncrement), maxEffectiveBalance)
-	return validator
 }
 
 // ProcessDepositRequests is a function as part of electra to process execution layer deposits
 func ProcessDepositRequests(ctx context.Context, beaconState state.BeaconState, requests []*enginev1.DepositRequest) (state.BeaconState, error) {
-	_, span := trace.StartSpan(ctx, "electra.ProcessDepositRequests")
+	ctx, span := trace.StartSpan(ctx, "electra.ProcessDepositRequests")
 	defer span.End()
 
 	if len(requests) == 0 {
 		return beaconState, nil
 	}
 
-	var err error
+	deposits := make([]*ethpb.Deposit, 0)
+	for _, req := range requests {
+		if req == nil {
+			return nil, errors.New("got a nil DepositRequest")
+		}
+		deposits = append(deposits, &ethpb.Deposit{
+			Data: &ethpb.Deposit_Data{
+				PublicKey:             req.Pubkey,
+				WithdrawalCredentials: req.WithdrawalCredentials,
+				Amount:                req.Amount,
+				Signature:             req.Signature,
+			},
+		})
+	}
+	batchVerified, err := blocks.BatchVerifyDepositsSignatures(ctx, deposits)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not verify deposit signatures in batch")
+	}
 	for _, receipt := range requests {
-		beaconState, err = processDepositRequest(beaconState, receipt)
+		beaconState, err = processDepositRequest(beaconState, receipt, batchVerified)
 		if err != nil {
 			return nil, errors.Wrap(err, "could not apply deposit request")
 		}
@@ -536,38 +341,31 @@ func ProcessDepositRequests(ctx context.Context, beaconState state.BeaconState,
 // processDepositRequest processes the specific deposit receipt
 // def process_deposit_request(state: BeaconState, deposit_request: DepositRequest) -> None:
 //
-//		# Set deposit request start index
-//		if state.deposit_requests_start_index == UNSET_DEPOSIT_REQUEST_START_INDEX:
-//		    state.deposit_requests_start_index = deposit_request.index
+//	# Set deposit request start index
+//	if state.deposit_requests_start_index == UNSET_DEPOSIT_REQUEST_START_INDEX:
+//	    state.deposit_requests_start_index = deposit_request.index
 //
-//		state.pending_deposits.append(PendingDeposit(
-//	       pubkey=deposit_request.pubkey,
-//	       withdrawal_credentials=deposit_request.withdrawal_credentials,
-//	       amount=deposit_request.amount,
-//	       signature=deposit_request.signature,
-//	       slot=state.slot,
-//	   ))
-func processDepositRequest(beaconState state.BeaconState, request *enginev1.DepositRequest) (state.BeaconState, error) {
+//	apply_deposit(
+//	    state=state,
+//	    pubkey=deposit_request.pubkey,
+//	    withdrawal_credentials=deposit_request.withdrawal_credentials,
+//	    amount=deposit_request.amount,
+//	    signature=deposit_request.signature,
+//	)
+func processDepositRequest(beaconState state.BeaconState, request *enginev1.DepositRequest, verifySignature bool) (state.BeaconState, error) {
 	requestsStartIndex, err := beaconState.DepositRequestsStartIndex()
 	if err != nil {
 		return nil, errors.Wrap(err, "could not get deposit requests start index")
 	}
 	if requestsStartIndex == params.BeaconConfig().UnsetDepositRequestsStartIndex {
-		if request == nil {
-			return nil, errors.New("nil deposit request")
-		}
 		if err := beaconState.SetDepositRequestsStartIndex(request.Index); err != nil {
 			return nil, errors.Wrap(err, "could not set deposit requests start index")
 		}
 	}
-	if err := beaconState.AppendPendingDeposit(&ethpb.PendingDeposit{
+	return ApplyDeposit(beaconState, &ethpb.Deposit_Data{
 		PublicKey:             bytesutil.SafeCopyBytes(request.Pubkey),
 		Amount:                request.Amount,
 		WithdrawalCredentials: bytesutil.SafeCopyBytes(request.WithdrawalCredentials),
 		Signature:             bytesutil.SafeCopyBytes(request.Signature),
-		Slot:                  beaconState.Slot(),
-	}); err != nil {
-		return nil, errors.Wrap(err, "could not append deposit request")
-	}
-	return beaconState, nil
+	}, verifySignature)
 }

beacon-chain/core/electra/deposits_test.go

@@ -9,12 +9,10 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/signing"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	state_native "github.com/prysmaticlabs/prysm/v5/beacon-chain/state/state-native"
-	stateTesting "github.com/prysmaticlabs/prysm/v5/beacon-chain/state/testing"
 	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/crypto/bls"
-	"github.com/prysmaticlabs/prysm/v5/crypto/bls/common"
 	"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"
@@ -22,7 +20,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/testing/util"
 )
 
-func TestProcessPendingDeposits(t *testing.T) {
+func TestProcessPendingBalanceDeposits(t *testing.T) {
 	tests := []struct {
 		name    string
 		state   state.BeaconState
@@ -50,10 +48,17 @@ func TestProcessPendingDeposits(t *testing.T) {
 		{
 			name: "more deposits than balance to consume processes partial deposits",
 			state: func() state.BeaconState {
-				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
-				depositAmount := uint64(amountAvailForProcessing) / 10
-				st := stateWithPendingDeposits(t, 1_000, 20, depositAmount)
+				st := stateWithActiveBalanceETH(t, 1_000)
 				require.NoError(t, st.SetDepositBalanceToConsume(100))
+				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
+				deps := make([]*eth.PendingBalanceDeposit, 20)
+				for i := 0; i < len(deps); i += 1 {
+					deps[i] = &eth.PendingBalanceDeposit{
+						Amount: uint64(amountAvailForProcessing) / 10,
+						Index:  primitives.ValidatorIndex(i),
+					}
+				}
+				require.NoError(t, st.SetPendingBalanceDeposits(deps))
 				return st
 			}(),
 			check: func(t *testing.T, st state.BeaconState) {
@@ -69,7 +74,7 @@ func TestProcessPendingDeposits(t *testing.T) {
 				}
 
 				// Half of the balance deposits should have been processed.
-				remaining, err := st.PendingDeposits()
+				remaining, err := st.PendingBalanceDeposits()
 				require.NoError(t, err)
 				require.Equal(t, 10, len(remaining))
 			},
@@ -77,10 +82,17 @@ func TestProcessPendingDeposits(t *testing.T) {
 		{
 			name: "less deposits than balance to consume processes all deposits",
 			state: func() state.BeaconState {
-				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
-				depositAmount := uint64(amountAvailForProcessing) / 5
-				st := stateWithPendingDeposits(t, 1_000, 5, depositAmount)
+				st := stateWithActiveBalanceETH(t, 1_000)
 				require.NoError(t, st.SetDepositBalanceToConsume(0))
+				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
+				deps := make([]*eth.PendingBalanceDeposit, 5)
+				for i := 0; i < len(deps); i += 1 {
+					deps[i] = &eth.PendingBalanceDeposit{
+						Amount: uint64(amountAvailForProcessing) / 5,
+						Index:  primitives.ValidatorIndex(i),
+					}
+				}
+				require.NoError(t, st.SetPendingBalanceDeposits(deps))
 				return st
 			}(),
 			check: func(t *testing.T, st state.BeaconState) {
@@ -96,74 +108,7 @@ func TestProcessPendingDeposits(t *testing.T) {
 				}
 
 				// All of the balance deposits should have been processed.
-				remaining, err := st.PendingDeposits()
-				require.NoError(t, err)
-				require.Equal(t, 0, len(remaining))
-			},
-		},
-		{
-			name: "process pending deposit for unknown key, activates new key",
-			state: func() state.BeaconState {
-				st := stateWithActiveBalanceETH(t, 0)
-				sk, err := bls.RandKey()
-				require.NoError(t, err)
-				wc := make([]byte, 32)
-				wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-				wc[31] = byte(0)
-				dep := stateTesting.GeneratePendingDeposit(t, sk, params.BeaconConfig().MinActivationBalance, bytesutil.ToBytes32(wc), 0)
-				require.NoError(t, st.SetPendingDeposits([]*eth.PendingDeposit{dep}))
-				require.Equal(t, 0, len(st.Validators()))
-				require.Equal(t, 0, len(st.Balances()))
-				return st
-			}(),
-			check: func(t *testing.T, st state.BeaconState) {
-				res, err := st.DepositBalanceToConsume()
-				require.NoError(t, err)
-				require.Equal(t, primitives.Gwei(0), res)
-				b, err := st.BalanceAtIndex(0)
-				require.NoError(t, err)
-				require.Equal(t, params.BeaconConfig().MinActivationBalance, b)
-
-				// All of the balance deposits should have been processed.
-				remaining, err := st.PendingDeposits()
-				require.NoError(t, err)
-				require.Equal(t, 0, len(remaining))
-
-				// validator becomes active
-				require.Equal(t, 1, len(st.Validators()))
-				require.Equal(t, 1, len(st.Balances()))
-			},
-		},
-		{
-			name: "process excess balance that uses a point to infinity signature, processed as a topup",
-			state: func() state.BeaconState {
-				excessBalance := uint64(100)
-				st := stateWithActiveBalanceETH(t, 32)
-				validators := st.Validators()
-				sk, err := bls.RandKey()
-				require.NoError(t, err)
-				wc := make([]byte, 32)
-				wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-				wc[31] = byte(0)
-				validators[0].PublicKey = sk.PublicKey().Marshal()
-				validators[0].WithdrawalCredentials = wc
-				dep := stateTesting.GeneratePendingDeposit(t, sk, excessBalance, bytesutil.ToBytes32(wc), 0)
-				dep.Signature = common.InfiniteSignature[:]
-				require.NoError(t, st.SetValidators(validators))
-				st.SaveValidatorIndices()
-				require.NoError(t, st.SetPendingDeposits([]*eth.PendingDeposit{dep}))
-				return st
-			}(),
-			check: func(t *testing.T, st state.BeaconState) {
-				res, err := st.DepositBalanceToConsume()
-				require.NoError(t, err)
-				require.Equal(t, primitives.Gwei(0), res)
-				b, err := st.BalanceAtIndex(0)
-				require.NoError(t, err)
-				require.Equal(t, params.BeaconConfig().MinActivationBalance+uint64(100), b)
-
-				// All of the balance deposits should have been processed.
-				remaining, err := st.PendingDeposits()
+				remaining, err := st.PendingBalanceDeposits()
 				require.NoError(t, err)
 				require.Equal(t, 0, len(remaining))
 			},
@@ -171,10 +116,17 @@ func TestProcessPendingDeposits(t *testing.T) {
 		{
 			name: "exiting validator deposit postponed",
 			state: func() state.BeaconState {
-				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
-				depositAmount := uint64(amountAvailForProcessing) / 5
-				st := stateWithPendingDeposits(t, 1_000, 5, depositAmount)
+				st := stateWithActiveBalanceETH(t, 1_000)
 				require.NoError(t, st.SetDepositBalanceToConsume(0))
+				amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
+				deps := make([]*eth.PendingBalanceDeposit, 5)
+				for i := 0; i < len(deps); i += 1 {
+					deps[i] = &eth.PendingBalanceDeposit{
+						Amount: uint64(amountAvailForProcessing) / 5,
+						Index:  primitives.ValidatorIndex(i),
+					}
+				}
+				require.NoError(t, st.SetPendingBalanceDeposits(deps))
 				v, err := st.ValidatorAtIndex(0)
 				require.NoError(t, err)
 				v.ExitEpoch = 10
@@ -196,7 +148,7 @@ func TestProcessPendingDeposits(t *testing.T) {
 
 				// All of the balance deposits should have been processed, except validator index 0 was
 				// added back to the pending deposits queue.
-				remaining, err := st.PendingDeposits()
+				remaining, err := st.PendingBalanceDeposits()
 				require.NoError(t, err)
 				require.Equal(t, 1, len(remaining))
 			},
@@ -204,7 +156,15 @@ func TestProcessPendingDeposits(t *testing.T) {
 		{
 			name: "exited validator balance increased",
 			state: func() state.BeaconState {
-				st := stateWithPendingDeposits(t, 1_000, 1, 1_000_000)
+				st := stateWithActiveBalanceETH(t, 1_000)
+				deps := make([]*eth.PendingBalanceDeposit, 1)
+				for i := 0; i < len(deps); i += 1 {
+					deps[i] = &eth.PendingBalanceDeposit{
+						Amount: 1_000_000,
+						Index:  primitives.ValidatorIndex(i),
+					}
+				}
+				require.NoError(t, st.SetPendingBalanceDeposits(deps))
 				v, err := st.ValidatorAtIndex(0)
 				require.NoError(t, err)
 				v.ExitEpoch = 2
@@ -222,7 +182,7 @@ func TestProcessPendingDeposits(t *testing.T) {
 				require.Equal(t, uint64(1_100_000), b)
 
 				// All of the balance deposits should have been processed.
-				remaining, err := st.PendingDeposits()
+				remaining, err := st.PendingBalanceDeposits()
 				require.NoError(t, err)
 				require.Equal(t, 0, len(remaining))
 			},
@@ -239,7 +199,7 @@ func TestProcessPendingDeposits(t *testing.T) {
 				tab, err = helpers.TotalActiveBalance(tt.state)
 			}
 			require.NoError(t, err)
-			err = electra.ProcessPendingDeposits(context.TODO(), tt.state, primitives.Gwei(tab))
+			err = electra.ProcessPendingBalanceDeposits(context.TODO(), tt.state, primitives.Gwei(tab))
 			require.Equal(t, tt.wantErr, err != nil, "wantErr=%v, got err=%s", tt.wantErr, err)
 			if tt.check != nil {
 				tt.check(t, tt.state)
@@ -260,7 +220,7 @@ func TestProcessDepositRequests(t *testing.T) {
 	})
 	t.Run("nil request errors", func(t *testing.T) {
 		_, err = electra.ProcessDepositRequests(context.Background(), st, []*enginev1.DepositRequest{nil})
-		require.ErrorContains(t, "nil deposit request", err)
+		require.ErrorContains(t, "got a nil DepositRequest", err)
 	})
 
 	vals := st.Validators()
@@ -270,7 +230,7 @@ func TestProcessDepositRequests(t *testing.T) {
 	bals := st.Balances()
 	bals[0] = params.BeaconConfig().MinActivationBalance + 2000
 	require.NoError(t, st.SetBalances(bals))
-	require.NoError(t, st.SetPendingDeposits(make([]*eth.PendingDeposit, 0))) // reset pbd as the determinitstic state populates this already
+	require.NoError(t, st.SetPendingBalanceDeposits(make([]*eth.PendingBalanceDeposit, 0))) // reset pbd as the determinitstic state populates this already
 	withdrawalCred := make([]byte, 32)
 	withdrawalCred[0] = params.BeaconConfig().CompoundingWithdrawalPrefixByte
 	depositMessage := &eth.DepositMessage{
@@ -295,10 +255,11 @@ func TestProcessDepositRequests(t *testing.T) {
 	st, err = electra.ProcessDepositRequests(context.Background(), st, requests)
 	require.NoError(t, err)
 
-	pbd, err := st.PendingDeposits()
+	pbd, err := st.PendingBalanceDeposits()
 	require.NoError(t, err)
-	require.Equal(t, 1, len(pbd))
+	require.Equal(t, 2, len(pbd))
 	require.Equal(t, uint64(1000), pbd[0].Amount)
+	require.Equal(t, uint64(2000), pbd[1].Amount)
 }
 
 func TestProcessDeposit_Electra_Simple(t *testing.T) {
@@ -325,7 +286,7 @@ func TestProcessDeposit_Electra_Simple(t *testing.T) {
 	require.NoError(t, err)
 	pdSt, err := electra.ProcessDeposits(context.Background(), st, deps)
 	require.NoError(t, err)
-	pbd, err := pdSt.PendingDeposits()
+	pbd, err := pdSt.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, params.BeaconConfig().MinActivationBalance, pbd[2].Amount)
 	require.Equal(t, 3, len(pbd))
@@ -361,7 +322,7 @@ func TestProcessDeposit_SkipsInvalidDeposit(t *testing.T) {
 		},
 	})
 	require.NoError(t, err)
-	newState, err := electra.ProcessDeposit(beaconState, dep[0], false)
+	newState, err := electra.ProcessDeposit(beaconState, dep[0], true)
 	require.NoError(t, err, "Expected invalid block deposit to be ignored without error")
 
 	if newState.Eth1DepositIndex() != 1 {
@@ -400,128 +361,40 @@ func TestApplyDeposit_TopUps_WithBadSignature(t *testing.T) {
 	require.NoError(t, st.SetValidators(vals))
 	adSt, err := electra.ApplyDeposit(st, depositData, true)
 	require.NoError(t, err)
-	pbd, err := adSt.PendingDeposits()
+	pbd, err := adSt.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 1, len(pbd))
 	require.Equal(t, topUpAmount, pbd[0].Amount)
 }
 
-// stateWithActiveBalanceETH generates a mock beacon state given a balance in eth
-func stateWithActiveBalanceETH(t *testing.T, balETH uint64) state.BeaconState {
-	gwei := balETH * 1_000_000_000
-	balPerVal := params.BeaconConfig().MinActivationBalance
-	numVals := gwei / balPerVal
-
-	vals := make([]*eth.Validator, numVals)
-	bals := make([]uint64, numVals)
-	for i := uint64(0); i < numVals; i++ {
-		wc := make([]byte, 32)
-		wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-		wc[31] = byte(i)
-		vals[i] = &eth.Validator{
-			ActivationEpoch:       0,
-			ExitEpoch:             params.BeaconConfig().FarFutureEpoch,
-			EffectiveBalance:      balPerVal,
-			WithdrawalCredentials: wc,
-			WithdrawableEpoch:     params.BeaconConfig().FarFutureEpoch,
-		}
-		bals[i] = balPerVal
-	}
-	st, err := state_native.InitializeFromProtoUnsafeElectra(&eth.BeaconStateElectra{
-		Slot:       10 * params.BeaconConfig().SlotsPerEpoch,
-		Validators: vals,
-		Balances:   bals,
-		Fork: &eth.Fork{
-			CurrentVersion: params.BeaconConfig().ElectraForkVersion,
-		},
-	})
-	require.NoError(t, err)
-	// set some fake finalized checkpoint
-	require.NoError(t, st.SetFinalizedCheckpoint(&eth.Checkpoint{
-		Epoch: 0,
-		Root:  make([]byte, 32),
-	}))
-	return st
-}
-
-// stateWithPendingDeposits with pending deposits and existing ethbalance
-func stateWithPendingDeposits(t *testing.T, balETH uint64, numDeposits, amount uint64) state.BeaconState {
-	st := stateWithActiveBalanceETH(t, balETH)
-	deps := make([]*eth.PendingDeposit, numDeposits)
-	validators := st.Validators()
-	for i := 0; i < len(deps); i += 1 {
-		sk, err := bls.RandKey()
-		require.NoError(t, err)
-		wc := make([]byte, 32)
-		wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-		wc[31] = byte(i)
-		validators[i].PublicKey = sk.PublicKey().Marshal()
-		validators[i].WithdrawalCredentials = wc
-		deps[i] = stateTesting.GeneratePendingDeposit(t, sk, amount, bytesutil.ToBytes32(wc), 0)
-	}
-	require.NoError(t, st.SetValidators(validators))
-	st.SaveValidatorIndices()
-	require.NoError(t, st.SetPendingDeposits(deps))
-	return st
-}
-
-func TestApplyPendingDeposit_TopUp(t *testing.T) {
-	excessBalance := uint64(100)
-	st := stateWithActiveBalanceETH(t, 32)
-	validators := st.Validators()
+func TestApplyDeposit_Electra_SwitchToCompoundingValidator(t *testing.T) {
+	st, _ := util.DeterministicGenesisStateElectra(t, 3)
 	sk, err := bls.RandKey()
 	require.NoError(t, err)
-	wc := make([]byte, 32)
-	wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-	wc[31] = byte(0)
-	validators[0].PublicKey = sk.PublicKey().Marshal()
-	validators[0].WithdrawalCredentials = wc
-	dep := stateTesting.GeneratePendingDeposit(t, sk, excessBalance, bytesutil.ToBytes32(wc), 0)
-	dep.Signature = common.InfiniteSignature[:]
-	require.NoError(t, st.SetValidators(validators))
-	st.SaveValidatorIndices()
-
-	require.NoError(t, electra.ApplyPendingDeposit(context.Background(), st, dep, false))
-
-	b, err := st.BalanceAtIndex(0)
-	require.NoError(t, err)
-	require.Equal(t, params.BeaconConfig().MinActivationBalance+uint64(excessBalance), b)
-}
-
-func TestApplyPendingDeposit_UnknownKey(t *testing.T) {
-	st := stateWithActiveBalanceETH(t, 0)
-	sk, err := bls.RandKey()
-	require.NoError(t, err)
-	wc := make([]byte, 32)
-	wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-	wc[31] = byte(0)
-	dep := stateTesting.GeneratePendingDeposit(t, sk, params.BeaconConfig().MinActivationBalance, bytesutil.ToBytes32(wc), 0)
-	require.Equal(t, 0, len(st.Validators()))
-	require.NoError(t, electra.ApplyPendingDeposit(context.Background(), st, dep, false))
-	// activates new validator
-	require.Equal(t, 1, len(st.Validators()))
-	b, err := st.BalanceAtIndex(0)
-	require.NoError(t, err)
-	require.Equal(t, params.BeaconConfig().MinActivationBalance, b)
-}
-
-func TestApplyPendingDeposit_InvalidSignature(t *testing.T) {
-	st := stateWithActiveBalanceETH(t, 0)
-
-	sk, err := bls.RandKey()
-	require.NoError(t, err)
-	wc := make([]byte, 32)
-	wc[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-	wc[31] = byte(0)
-	dep := &eth.PendingDeposit{
+	withdrawalCred := make([]byte, 32)
+	withdrawalCred[0] = params.BeaconConfig().CompoundingWithdrawalPrefixByte
+	depositData := &eth.Deposit_Data{
 		PublicKey:             sk.PublicKey().Marshal(),
-		WithdrawalCredentials: wc,
-		Amount:                100,
+		Amount:                1000,
+		WithdrawalCredentials: withdrawalCred,
+		Signature:             make([]byte, fieldparams.BLSSignatureLength),
 	}
-	require.Equal(t, 0, len(st.Validators()))
-	require.NoError(t, electra.ApplyPendingDeposit(context.Background(), st, dep, false))
-	// no validator added
-	require.Equal(t, 0, len(st.Validators()))
-	// no topup either
-	require.Equal(t, 0, len(st.Balances()))
+	vals := st.Validators()
+	vals[0].PublicKey = sk.PublicKey().Marshal()
+	vals[0].WithdrawalCredentials[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
+	require.NoError(t, st.SetValidators(vals))
+	bals := st.Balances()
+	bals[0] = params.BeaconConfig().MinActivationBalance + 2000
+	require.NoError(t, st.SetBalances(bals))
+	sr, err := signing.ComputeSigningRoot(depositData, bytesutil.ToBytes(3, 32))
+	require.NoError(t, err)
+	sig := sk.Sign(sr[:])
+	depositData.Signature = sig.Marshal()
+	adSt, err := electra.ApplyDeposit(st, depositData, false)
+	require.NoError(t, err)
+	pbd, err := adSt.PendingBalanceDeposits()
+	require.NoError(t, err)
+	require.Equal(t, 2, len(pbd))
+	require.Equal(t, uint64(1000), pbd[0].Amount)
+	require.Equal(t, uint64(2000), pbd[1].Amount)
 }

beacon-chain/core/electra/transition.go

@@ -44,7 +44,7 @@ var (
 //	    process_registry_updates(state)
 //	    process_slashings(state)
 //	    process_eth1_data_reset(state)
-//	    process_pending_deposits(state)  # New in EIP7251
+//	    process_pending_balance_deposits(state)  # New in EIP7251
 //	    process_pending_consolidations(state)  # New in EIP7251
 //	    process_effective_balance_updates(state)
 //	    process_slashings_reset(state)
@@ -94,7 +94,7 @@ func ProcessEpoch(ctx context.Context, state state.BeaconState) error {
 		return err
 	}
 
-	if err = ProcessPendingDeposits(ctx, state, primitives.Gwei(bp.ActiveCurrentEpoch)); err != nil {
+	if err = ProcessPendingBalanceDeposits(ctx, state, primitives.Gwei(bp.ActiveCurrentEpoch)); err != nil {
 		return err
 	}
 	if err = ProcessPendingConsolidations(ctx, state); err != nil {

beacon-chain/core/electra/transition_test.go

@@ -57,17 +57,14 @@ func TestProcessEpoch_CanProcessElectra(t *testing.T) {
 	require.NoError(t, st.SetSlot(10*params.BeaconConfig().SlotsPerEpoch))
 	require.NoError(t, st.SetDepositBalanceToConsume(100))
 	amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
-	validators := st.Validators()
-	deps := make([]*ethpb.PendingDeposit, 20)
+	deps := make([]*ethpb.PendingBalanceDeposit, 20)
 	for i := 0; i < len(deps); i += 1 {
-		deps[i] = &ethpb.PendingDeposit{
-			PublicKey:             validators[i].PublicKey,
-			WithdrawalCredentials: validators[i].WithdrawalCredentials,
-			Amount:                uint64(amountAvailForProcessing) / 10,
-			Slot:                  0,
+		deps[i] = &ethpb.PendingBalanceDeposit{
+			Amount: uint64(amountAvailForProcessing) / 10,
+			Index:  primitives.ValidatorIndex(i),
 		}
 	}
-	require.NoError(t, st.SetPendingDeposits(deps))
+	require.NoError(t, st.SetPendingBalanceDeposits(deps))
 	require.NoError(t, st.SetPendingConsolidations([]*ethpb.PendingConsolidation{
 		{
 			SourceIndex: 2,
@@ -111,7 +108,7 @@ func TestProcessEpoch_CanProcessElectra(t *testing.T) {
 	require.Equal(t, primitives.Gwei(100), res)
 
 	// Half of the balance deposits should have been processed.
-	remaining, err := st.PendingDeposits()
+	remaining, err := st.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 10, len(remaining))
 

beacon-chain/core/electra/upgrade.go

@@ -101,7 +101,7 @@ import (
 //	    earliest_exit_epoch=earliest_exit_epoch,
 //	    consolidation_balance_to_consume=0,
 //	    earliest_consolidation_epoch=compute_activation_exit_epoch(get_current_epoch(pre)),
-//	    pending_deposits=[],
+//	    pending_balance_deposits=[],
 //	    pending_partial_withdrawals=[],
 //	    pending_consolidations=[],
 //	)
@@ -272,7 +272,7 @@ func UpgradeToElectra(beaconState state.BeaconState) (state.BeaconState, error)
 		EarliestExitEpoch:             earliestExitEpoch,
 		ConsolidationBalanceToConsume: helpers.ConsolidationChurnLimit(primitives.Gwei(tab)),
 		EarliestConsolidationEpoch:    helpers.ActivationExitEpoch(slots.ToEpoch(beaconState.Slot())),
-		PendingDeposits:               make([]*ethpb.PendingDeposit, 0),
+		PendingBalanceDeposits:        make([]*ethpb.PendingBalanceDeposit, 0),
 		PendingPartialWithdrawals:     make([]*ethpb.PendingPartialWithdrawal, 0),
 		PendingConsolidations:         make([]*ethpb.PendingConsolidation, 0),
 	}

beacon-chain/core/electra/upgrade_test.go

@@ -169,10 +169,10 @@ func TestUpgradeToElectra(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, helpers.ActivationExitEpoch(slots.ToEpoch(preForkState.Slot())), earliestConsolidationEpoch)
 
-	pendingDeposits, err := mSt.PendingDeposits()
+	pendingBalanceDeposits, err := mSt.PendingBalanceDeposits()
 	require.NoError(t, err)
-	require.Equal(t, 2, len(pendingDeposits))
-	require.Equal(t, uint64(1000), pendingDeposits[1].Amount)
+	require.Equal(t, 2, len(pendingBalanceDeposits))
+	require.Equal(t, uint64(1000), pendingBalanceDeposits[1].Amount)
 
 	numPendingPartialWithdrawals, err := mSt.NumPendingPartialWithdrawals()
 	require.NoError(t, err)

beacon-chain/core/electra/validator.go

@@ -7,10 +7,74 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v5/crypto/bls/common"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 )
 
+// AddValidatorToRegistry updates the beacon state with validator information
+// def add_validator_to_registry(state: BeaconState,
+//
+//	                          pubkey: BLSPubkey,
+//	                          withdrawal_credentials: Bytes32,
+//	                          amount: uint64) -> None:
+//	index = get_index_for_new_validator(state)
+//	validator = get_validator_from_deposit(pubkey, withdrawal_credentials)
+//	set_or_append_list(state.validators, index, validator)
+//	set_or_append_list(state.balances, index, 0)  # [Modified in Electra:EIP7251]
+//	set_or_append_list(state.previous_epoch_participation, index, ParticipationFlags(0b0000_0000))
+//	set_or_append_list(state.current_epoch_participation, index, ParticipationFlags(0b0000_0000))
+//	set_or_append_list(state.inactivity_scores, index, uint64(0))
+//	state.pending_balance_deposits.append(PendingBalanceDeposit(index=index, amount=amount))  # [New in Electra:EIP7251]
+func AddValidatorToRegistry(beaconState state.BeaconState, pubKey []byte, withdrawalCredentials []byte, amount uint64) error {
+	val := ValidatorFromDeposit(pubKey, withdrawalCredentials)
+	if err := beaconState.AppendValidator(val); err != nil {
+		return err
+	}
+	index, ok := beaconState.ValidatorIndexByPubkey(bytesutil.ToBytes48(pubKey))
+	if !ok {
+		return errors.New("could not find validator in registry")
+	}
+	if err := beaconState.AppendBalance(0); err != nil {
+		return err
+	}
+	if err := beaconState.AppendPendingBalanceDeposit(index, amount); err != nil {
+		return err
+	}
+	if err := beaconState.AppendInactivityScore(0); err != nil {
+		return err
+	}
+	if err := beaconState.AppendPreviousParticipationBits(0); err != nil {
+		return err
+	}
+	return beaconState.AppendCurrentParticipationBits(0)
+}
+
+// ValidatorFromDeposit gets a new validator object with provided parameters
+//
+// def get_validator_from_deposit(pubkey: BLSPubkey, withdrawal_credentials: Bytes32) -> Validator:
+//
+//	return Validator(
+//	pubkey=pubkey,
+//	withdrawal_credentials=withdrawal_credentials,
+//	activation_eligibility_epoch=FAR_FUTURE_EPOCH,
+//	activation_epoch=FAR_FUTURE_EPOCH,
+//	exit_epoch=FAR_FUTURE_EPOCH,
+//	withdrawable_epoch=FAR_FUTURE_EPOCH,
+//	effective_balance=0,  # [Modified in Electra:EIP7251]
+//
+// )
+func ValidatorFromDeposit(pubKey []byte, withdrawalCredentials []byte) *ethpb.Validator {
+	return &ethpb.Validator{
+		PublicKey:                  pubKey,
+		WithdrawalCredentials:      withdrawalCredentials,
+		ActivationEligibilityEpoch: params.BeaconConfig().FarFutureEpoch,
+		ActivationEpoch:            params.BeaconConfig().FarFutureEpoch,
+		ExitEpoch:                  params.BeaconConfig().FarFutureEpoch,
+		WithdrawableEpoch:          params.BeaconConfig().FarFutureEpoch,
+		EffectiveBalance:           0, // [Modified in Electra:EIP7251]
+	}
+}
+
 // SwitchToCompoundingValidator
 //
 // Spec definition:
@@ -38,23 +102,18 @@ func SwitchToCompoundingValidator(s state.BeaconState, idx primitives.ValidatorI
 	return nil
 }
 
-// QueueExcessActiveBalance queues validators with balances above the min activation balance and adds to pending deposit.
+// QueueExcessActiveBalance queues validators with balances above the min activation balance and adds to pending balance deposit.
 //
 // Spec definition:
 //
-//		def queue_excess_active_balance(state: BeaconState, index: ValidatorIndex) -> None:
-//		    balance = state.balances[index]
-//		    if balance > MIN_ACTIVATION_BALANCE:
-//		        excess_balance = balance - MIN_ACTIVATION_BALANCE
-//		        state.balances[index] = MIN_ACTIVATION_BALANCE
-//		        validator = state.validators[index]
-//	         state.pending_deposits.append(PendingDeposit(
-//	           pubkey=validator.pubkey,
-//	           withdrawal_credentials=validator.withdrawal_credentials,
-//	           amount=excess_balance,
-//	           signature=bls.G2_POINT_AT_INFINITY,
-//	           slot=GENESIS_SLOT,
-//	         ))
+//	def queue_excess_active_balance(state: BeaconState, index: ValidatorIndex) -> None:
+//	    balance = state.balances[index]
+//	    if balance > MIN_ACTIVATION_BALANCE:
+//	        excess_balance = balance - MIN_ACTIVATION_BALANCE
+//	        state.balances[index] = MIN_ACTIVATION_BALANCE
+//	        state.pending_balance_deposits.append(
+//	            PendingBalanceDeposit(index=index, amount=excess_balance)
+//	        )
 func QueueExcessActiveBalance(s state.BeaconState, idx primitives.ValidatorIndex) error {
 	bal, err := s.BalanceAtIndex(idx)
 	if err != nil {
@@ -62,21 +121,11 @@ func QueueExcessActiveBalance(s state.BeaconState, idx primitives.ValidatorIndex
 	}
 
 	if bal > params.BeaconConfig().MinActivationBalance {
-		val, err := s.ValidatorAtIndex(idx)
-		if err != nil {
-			return err
-		}
 		excessBalance := bal - params.BeaconConfig().MinActivationBalance
 		if err := s.UpdateBalancesAtIndex(idx, params.BeaconConfig().MinActivationBalance); err != nil {
 			return err
 		}
-		return s.AppendPendingDeposit(&ethpb.PendingDeposit{
-			PublicKey:             val.PublicKey,
-			WithdrawalCredentials: val.WithdrawalCredentials,
-			Amount:                excessBalance,
-			Signature:             common.InfiniteSignature[:],
-			Slot:                  params.BeaconConfig().GenesisSlot,
-		})
+		return s.AppendPendingBalanceDeposit(idx, excessBalance)
 	}
 	return nil
 }
@@ -85,19 +134,15 @@ func QueueExcessActiveBalance(s state.BeaconState, idx primitives.ValidatorIndex
 //
 // Spec definition:
 //
-//		def queue_entire_balance_and_reset_validator(state: BeaconState, index: ValidatorIndex) -> None:
-//		    balance = state.balances[index]
-//		    state.balances[index] = 0
-//		    validator = state.validators[index]
-//		    validator.effective_balance = 0
-//		    validator.activation_eligibility_epoch = FAR_FUTURE_EPOCH
-//		    state.pending_deposits.append(PendingDeposit(
-//	       pubkey=validator.pubkey,
-//	       withdrawal_credentials=validator.withdrawal_credentials,
-//	       amount=balance,
-//	       signature=bls.G2_POINT_AT_INFINITY,
-//	       slot=GENESIS_SLOT,
-//	     ))
+//	def queue_entire_balance_and_reset_validator(state: BeaconState, index: ValidatorIndex) -> None:
+//	    balance = state.balances[index]
+//	    state.balances[index] = 0
+//	    validator = state.validators[index]
+//	    validator.effective_balance = 0
+//	    validator.activation_eligibility_epoch = FAR_FUTURE_EPOCH
+//	    state.pending_balance_deposits.append(
+//	        PendingBalanceDeposit(index=index, amount=balance)
+//	    )
 //
 //nolint:dupword
 func QueueEntireBalanceAndResetValidator(s state.BeaconState, idx primitives.ValidatorIndex) error {
@@ -121,11 +166,5 @@ func QueueEntireBalanceAndResetValidator(s state.BeaconState, idx primitives.Val
 		return err
 	}
 
-	return s.AppendPendingDeposit(&ethpb.PendingDeposit{
-		PublicKey:             v.PublicKey,
-		WithdrawalCredentials: v.WithdrawalCredentials,
-		Amount:                bal,
-		Signature:             common.InfiniteSignature[:],
-		Slot:                  params.BeaconConfig().GenesisSlot,
-	})
+	return s.AppendPendingBalanceDeposit(idx, bal)
 }

beacon-chain/core/electra/validator_test.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/electra"
 	state_native "github.com/prysmaticlabs/prysm/v5/beacon-chain/state/state-native"
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
 	eth "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
@@ -13,6 +14,20 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/testing/util"
 )
 
+func TestAddValidatorToRegistry(t *testing.T) {
+	st, err := state_native.InitializeFromProtoElectra(&eth.BeaconStateElectra{})
+	require.NoError(t, err)
+	require.NoError(t, electra.AddValidatorToRegistry(st, make([]byte, fieldparams.BLSPubkeyLength), make([]byte, fieldparams.RootLength), 100))
+	balances := st.Balances()
+	require.Equal(t, 1, len(balances))
+	require.Equal(t, uint64(0), balances[0])
+	pbds, err := st.PendingBalanceDeposits()
+	require.NoError(t, err)
+	require.Equal(t, 1, len(pbds))
+	require.Equal(t, uint64(100), pbds[0].Amount)
+	require.Equal(t, primitives.ValidatorIndex(0), pbds[0].Index)
+}
+
 func TestSwitchToCompoundingValidator(t *testing.T) {
 	s, err := state_native.InitializeFromProtoElectra(&eth.BeaconStateElectra{
 		Validators: []*eth.Validator{
@@ -45,7 +60,7 @@ func TestSwitchToCompoundingValidator(t *testing.T) {
 	b, err := s.BalanceAtIndex(1)
 	require.NoError(t, err)
 	require.Equal(t, params.BeaconConfig().MinActivationBalance, b, "balance was changed")
-	pbd, err := s.PendingDeposits()
+	pbd, err := s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 0, len(pbd), "pending balance deposits should be empty")
 
@@ -54,10 +69,11 @@ func TestSwitchToCompoundingValidator(t *testing.T) {
 	b, err = s.BalanceAtIndex(2)
 	require.NoError(t, err)
 	require.Equal(t, params.BeaconConfig().MinActivationBalance, b, "balance was not changed")
-	pbd, err = s.PendingDeposits()
+	pbd, err = s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 1, len(pbd), "pending balance deposits should have one element")
 	require.Equal(t, uint64(100_000), pbd[0].Amount, "pending balance deposit amount is incorrect")
+	require.Equal(t, primitives.ValidatorIndex(2), pbd[0].Index, "pending balance deposit index is incorrect")
 }
 
 func TestQueueEntireBalanceAndResetValidator(t *testing.T) {
@@ -81,10 +97,11 @@ func TestQueueEntireBalanceAndResetValidator(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, uint64(0), v.EffectiveBalance, "effective balance was not reset")
 	require.Equal(t, params.BeaconConfig().FarFutureEpoch, v.ActivationEligibilityEpoch, "activation eligibility epoch was not reset")
-	pbd, err := s.PendingDeposits()
+	pbd, err := s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 1, len(pbd), "pending balance deposits should have one element")
 	require.Equal(t, params.BeaconConfig().MinActivationBalance+100_000, pbd[0].Amount, "pending balance deposit amount is incorrect")
+	require.Equal(t, primitives.ValidatorIndex(0), pbd[0].Index, "pending balance deposit index is incorrect")
 }
 
 func TestSwitchToCompoundingValidator_Ok(t *testing.T) {
@@ -97,7 +114,7 @@ func TestSwitchToCompoundingValidator_Ok(t *testing.T) {
 	require.NoError(t, st.SetBalances(bals))
 	require.NoError(t, electra.SwitchToCompoundingValidator(st, 0))
 
-	pbd, err := st.PendingDeposits()
+	pbd, err := st.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, uint64(1010), pbd[0].Amount) // appends it at the end
 	val, err := st.ValidatorAtIndex(0)
@@ -115,7 +132,7 @@ func TestQueueExcessActiveBalance_Ok(t *testing.T) {
 	err := electra.QueueExcessActiveBalance(st, 0)
 	require.NoError(t, err)
 
-	pbd, err := st.PendingDeposits()
+	pbd, err := st.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, uint64(1000), pbd[0].Amount) // appends it at the end
 
@@ -132,7 +149,7 @@ func TestQueueEntireBalanceAndResetValidator_Ok(t *testing.T) {
 	err := electra.QueueEntireBalanceAndResetValidator(st, 0)
 	require.NoError(t, err)
 
-	pbd, err := st.PendingDeposits()
+	pbd, err := st.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 1, len(pbd))
 	require.Equal(t, params.BeaconConfig().MinActivationBalance-1000, pbd[0].Amount)

beacon-chain/core/light-client/lightclient.go

@@ -243,8 +243,8 @@ func createDefaultLightClientUpdate() (*ethpbv2.LightClientUpdate, error) {
 		Pubkeys:         pubKeys,
 		AggregatePubkey: make([]byte, fieldparams.BLSPubkeyLength),
 	}
-	nextSyncCommitteeBranch := make([][]byte, fieldparams.NextSyncCommitteeBranchDepth)
-	for i := 0; i < fieldparams.NextSyncCommitteeBranchDepth; i++ {
+	nextSyncCommitteeBranch := make([][]byte, fieldparams.SyncCommitteeBranchDepth)
+	for i := 0; i < fieldparams.SyncCommitteeBranchDepth; i++ {
 		nextSyncCommitteeBranch[i] = make([]byte, fieldparams.RootLength)
 	}
 	executionBranch := make([][]byte, executionBranchNumOfLeaves)
@@ -321,10 +321,10 @@ func BlockToLightClientHeader(block interfaces.ReadOnlySignedBeaconBlock) (*ethp
 				HeaderCapella: capellaHeader,
 			},
 		}, nil
-	case version.Deneb:
+	case version.Deneb, version.Electra:
 		denebHeader, err := blockToLightClientHeaderDeneb(context.Background(), block)
 		if err != nil {
-			return nil, errors.Wrap(err, "could not get deneb header")
+			return nil, errors.Wrap(err, "could not get header")
 		}
 		return &ethpbv2.LightClientHeaderContainer{
 			Header: &ethpbv2.LightClientHeaderContainer_HeaderDeneb{
@@ -337,7 +337,7 @@ func BlockToLightClientHeader(block interfaces.ReadOnlySignedBeaconBlock) (*ethp
 }
 
 func blockToLightClientHeaderAltair(block interfaces.ReadOnlySignedBeaconBlock) (*ethpbv2.LightClientHeader, error) {
-	if block.Version() != version.Altair {
+	if block.Version() < version.Altair {
 		return nil, fmt.Errorf("block version is %s instead of Altair", version.String(block.Version()))
 	}
 
@@ -360,7 +360,7 @@ func blockToLightClientHeaderAltair(block interfaces.ReadOnlySignedBeaconBlock)
 }
 
 func blockToLightClientHeaderCapella(ctx context.Context, block interfaces.ReadOnlySignedBeaconBlock) (*ethpbv2.LightClientHeaderCapella, error) {
-	if block.Version() != version.Capella {
+	if block.Version() < version.Capella {
 		return nil, fmt.Errorf("block version is %s instead of Capella", version.String(block.Version()))
 	}
 
@@ -422,8 +422,8 @@ func blockToLightClientHeaderCapella(ctx context.Context, block interfaces.ReadO
 }
 
 func blockToLightClientHeaderDeneb(ctx context.Context, block interfaces.ReadOnlySignedBeaconBlock) (*ethpbv2.LightClientHeaderDeneb, error) {
-	if block.Version() != version.Deneb {
-		return nil, fmt.Errorf("block version is %s instead of Deneb", version.String(block.Version()))
+	if block.Version() < version.Deneb {
+		return nil, fmt.Errorf("block version is %s instead of Deneb/Electra", version.String(block.Version()))
 	}
 
 	payload, err := block.Block().Body().Execution()

beacon-chain/core/light-client/lightclient_test.go

@@ -599,4 +599,130 @@ func TestLightClient_BlockToLightClientHeader(t *testing.T) {
 			require.DeepSSZEqual(t, executionPayloadProof, header.ExecutionBranch, "Execution payload proofs are not equal")
 		})
 	})
+
+	t.Run("Electra", func(t *testing.T) {
+		t.Run("Non-Blinded Beacon Block", func(t *testing.T) {
+			l := util.NewTestLightClient(t).SetupTestElectra(false)
+
+			container, err := lightClient.BlockToLightClientHeader(l.Block)
+			require.NoError(t, err)
+			header := container.GetHeaderDeneb()
+			require.NotNil(t, header, "header is nil")
+
+			parentRoot := l.Block.Block().ParentRoot()
+			stateRoot := l.Block.Block().StateRoot()
+			bodyRoot, err := l.Block.Block().Body().HashTreeRoot()
+			require.NoError(t, err)
+
+			payload, err := l.Block.Block().Body().Execution()
+			require.NoError(t, err)
+
+			transactionsRoot, err := lightClient.ComputeTransactionsRoot(payload)
+			require.NoError(t, err)
+
+			withdrawalsRoot, err := lightClient.ComputeWithdrawalsRoot(payload)
+			require.NoError(t, err)
+
+			blobGasUsed, err := payload.BlobGasUsed()
+			require.NoError(t, err)
+
+			excessBlobGas, err := payload.ExcessBlobGas()
+			require.NoError(t, err)
+
+			executionHeader := &v11.ExecutionPayloadHeaderElectra{
+				ParentHash:       payload.ParentHash(),
+				FeeRecipient:     payload.FeeRecipient(),
+				StateRoot:        payload.StateRoot(),
+				ReceiptsRoot:     payload.ReceiptsRoot(),
+				LogsBloom:        payload.LogsBloom(),
+				PrevRandao:       payload.PrevRandao(),
+				BlockNumber:      payload.BlockNumber(),
+				GasLimit:         payload.GasLimit(),
+				GasUsed:          payload.GasUsed(),
+				Timestamp:        payload.Timestamp(),
+				ExtraData:        payload.ExtraData(),
+				BaseFeePerGas:    payload.BaseFeePerGas(),
+				BlockHash:        payload.BlockHash(),
+				TransactionsRoot: transactionsRoot,
+				WithdrawalsRoot:  withdrawalsRoot,
+				BlobGasUsed:      blobGasUsed,
+				ExcessBlobGas:    excessBlobGas,
+			}
+
+			executionPayloadProof, err := blocks.PayloadProof(l.Ctx, l.Block.Block())
+			require.NoError(t, err)
+
+			require.Equal(t, l.Block.Block().Slot(), header.Beacon.Slot, "Slot is not equal")
+			require.Equal(t, l.Block.Block().ProposerIndex(), header.Beacon.ProposerIndex, "Proposer index is not equal")
+			require.DeepSSZEqual(t, parentRoot[:], header.Beacon.ParentRoot, "Parent root is not equal")
+			require.DeepSSZEqual(t, stateRoot[:], header.Beacon.StateRoot, "State root is not equal")
+			require.DeepSSZEqual(t, bodyRoot[:], header.Beacon.BodyRoot, "Body root is not equal")
+
+			require.DeepSSZEqual(t, executionHeader, header.Execution, "Execution headers are not equal")
+
+			require.DeepSSZEqual(t, executionPayloadProof, header.ExecutionBranch, "Execution payload proofs are not equal")
+		})
+
+		t.Run("Blinded Beacon Block", func(t *testing.T) {
+			l := util.NewTestLightClient(t).SetupTestElectra(true)
+
+			container, err := lightClient.BlockToLightClientHeader(l.Block)
+			require.NoError(t, err)
+			header := container.GetHeaderDeneb()
+			require.NotNil(t, header, "header is nil")
+
+			parentRoot := l.Block.Block().ParentRoot()
+			stateRoot := l.Block.Block().StateRoot()
+			bodyRoot, err := l.Block.Block().Body().HashTreeRoot()
+			require.NoError(t, err)
+
+			payload, err := l.Block.Block().Body().Execution()
+			require.NoError(t, err)
+
+			transactionsRoot, err := payload.TransactionsRoot()
+			require.NoError(t, err)
+
+			withdrawalsRoot, err := payload.WithdrawalsRoot()
+			require.NoError(t, err)
+
+			blobGasUsed, err := payload.BlobGasUsed()
+			require.NoError(t, err)
+
+			excessBlobGas, err := payload.ExcessBlobGas()
+			require.NoError(t, err)
+
+			executionHeader := &v11.ExecutionPayloadHeaderElectra{
+				ParentHash:       payload.ParentHash(),
+				FeeRecipient:     payload.FeeRecipient(),
+				StateRoot:        payload.StateRoot(),
+				ReceiptsRoot:     payload.ReceiptsRoot(),
+				LogsBloom:        payload.LogsBloom(),
+				PrevRandao:       payload.PrevRandao(),
+				BlockNumber:      payload.BlockNumber(),
+				GasLimit:         payload.GasLimit(),
+				GasUsed:          payload.GasUsed(),
+				Timestamp:        payload.Timestamp(),
+				ExtraData:        payload.ExtraData(),
+				BaseFeePerGas:    payload.BaseFeePerGas(),
+				BlockHash:        payload.BlockHash(),
+				TransactionsRoot: transactionsRoot,
+				WithdrawalsRoot:  withdrawalsRoot,
+				BlobGasUsed:      blobGasUsed,
+				ExcessBlobGas:    excessBlobGas,
+			}
+
+			executionPayloadProof, err := blocks.PayloadProof(l.Ctx, l.Block.Block())
+			require.NoError(t, err)
+
+			require.Equal(t, l.Block.Block().Slot(), header.Beacon.Slot, "Slot is not equal")
+			require.Equal(t, l.Block.Block().ProposerIndex(), header.Beacon.ProposerIndex, "Proposer index is not equal")
+			require.DeepSSZEqual(t, parentRoot[:], header.Beacon.ParentRoot, "Parent root is not equal")
+			require.DeepSSZEqual(t, stateRoot[:], header.Beacon.StateRoot, "State root is not equal")
+			require.DeepSSZEqual(t, bodyRoot[:], header.Beacon.BodyRoot, "Body root is not equal")
+
+			require.DeepSSZEqual(t, executionHeader, header.Execution, "Execution headers are not equal")
+
+			require.DeepSSZEqual(t, executionPayloadProof, header.ExecutionBranch, "Execution payload proofs are not equal")
+		})
+	})
 }

beacon-chain/p2p/encoder/ssz_test.go

@@ -110,7 +110,7 @@ type BeaconStateElectraCreator struct{}
 type PowBlockCreator struct{}
 type HistoricalSummaryCreator struct{}
 type BlobIdentifierCreator struct{}
-type PendingDepositCreator struct{}
+type PendingBalanceDepositCreator struct{}
 type PendingPartialWithdrawalCreator struct{}
 type PendingConsolidationCreator struct{}
 type StatusCreator struct{}
@@ -279,8 +279,8 @@ func (BeaconStateElectraCreator) Create() MarshalerProtoMessage { return &ethpb.
 func (PowBlockCreator) Create() MarshalerProtoMessage           { return &ethpb.PowBlock{} }
 func (HistoricalSummaryCreator) Create() MarshalerProtoMessage  { return &ethpb.HistoricalSummary{} }
 func (BlobIdentifierCreator) Create() MarshalerProtoMessage     { return &ethpb.BlobIdentifier{} }
-func (PendingDepositCreator) Create() MarshalerProtoMessage {
-	return &ethpb.PendingDeposit{}
+func (PendingBalanceDepositCreator) Create() MarshalerProtoMessage {
+	return &ethpb.PendingBalanceDeposit{}
 }
 func (PendingPartialWithdrawalCreator) Create() MarshalerProtoMessage {
 	return &ethpb.PendingPartialWithdrawal{}
@@ -397,7 +397,7 @@ var creators = []MarshalerProtoCreator{
 	PowBlockCreator{},
 	HistoricalSummaryCreator{},
 	BlobIdentifierCreator{},
-	PendingDepositCreator{},
+	PendingBalanceDepositCreator{},
 	PendingPartialWithdrawalCreator{},
 	PendingConsolidationCreator{},
 	StatusCreator{},

beacon-chain/rpc/eth/config/handlers_test.go

@@ -138,7 +138,7 @@ func TestGetSpec(t *testing.T) {
 	config.WhistleBlowerRewardQuotientElectra = 79
 	config.PendingPartialWithdrawalsLimit = 80
 	config.MinActivationBalance = 81
-	config.PendingDepositLimit = 82
+	config.PendingBalanceDepositLimit = 82
 	config.MaxPendingPartialsPerWithdrawalsSweep = 83
 	config.PendingConsolidationsLimit = 84
 	config.MaxPartialWithdrawalsPerPayload = 85
@@ -150,7 +150,6 @@ func TestGetSpec(t *testing.T) {
 	config.MaxCellsInExtendedMatrix = 91
 	config.UnsetDepositRequestsStartIndex = 92
 	config.MaxDepositRequestsPerPayload = 93
-	config.MaxPendingDepositsPerEpoch = 94
 
 	var dbp [4]byte
 	copy(dbp[:], []byte{'0', '0', '0', '1'})
@@ -500,7 +499,7 @@ func TestGetSpec(t *testing.T) {
 				assert.Equal(t, "80", v)
 			case "MIN_ACTIVATION_BALANCE":
 				assert.Equal(t, "81", v)
-			case "PENDING_DEPOSITS_LIMIT":
+			case "PENDING_BALANCE_DEPOSITS_LIMIT":
 				assert.Equal(t, "82", v)
 			case "MAX_PENDING_PARTIALS_PER_WITHDRAWALS_SWEEP":
 				assert.Equal(t, "83", v)
@@ -524,8 +523,6 @@ func TestGetSpec(t *testing.T) {
 				assert.Equal(t, "92", v)
 			case "MAX_DEPOSIT_REQUESTS_PER_PAYLOAD":
 				assert.Equal(t, "93", v)
-			case "MAX_PENDING_DEPOSITS_PER_EPOCH":
-				assert.Equal(t, "94", v)
 			default:
 				t.Errorf("Incorrect key: %s", k)
 			}

beacon-chain/rpc/eth/events/events.go

@@ -71,6 +71,7 @@ var (
 	errSlowReader         = errors.New("client failed to read fast enough to keep outgoing buffer below threshold")
 	errNotRequested       = errors.New("event not requested by client")
 	errUnhandledEventData = errors.New("unable to represent event data in the event stream")
+	errWriterUnusable     = errors.New("http response writer is unusable")
 )
 
 // StreamingResponseWriter defines a type that can be used by the eventStreamer.
@@ -309,10 +310,21 @@ func (es *eventStreamer) outboxWriteLoop(ctx context.Context, cancel context.Can
 	}
 }
 
+func writeLazyReaderWithRecover(w StreamingResponseWriter, lr lazyReader) (err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			log.WithField("panic", r).Error("Recovered from panic while writing event to client.")
+			err = errWriterUnusable
+		}
+	}()
+	_, err = io.Copy(w, lr())
+	return err
+}
+
 func (es *eventStreamer) writeOutbox(ctx context.Context, w StreamingResponseWriter, first lazyReader) error {
 	needKeepAlive := true
 	if first != nil {
-		if _, err := io.Copy(w, first()); err != nil {
+		if err := writeLazyReaderWithRecover(w, first); err != nil {
 			return err
 		}
 		needKeepAlive = false
@@ -325,13 +337,13 @@ func (es *eventStreamer) writeOutbox(ctx context.Context, w StreamingResponseWri
 		case <-ctx.Done():
 			return ctx.Err()
 		case rf := <-es.outbox:
-			if _, err := io.Copy(w, rf()); err != nil {
+			if err := writeLazyReaderWithRecover(w, rf); err != nil {
 				return err
 			}
 			needKeepAlive = false
 		default:
 			if needKeepAlive {
-				if _, err := io.Copy(w, newlineReader()); err != nil {
+				if err := writeLazyReaderWithRecover(w, newlineReader); err != nil {
 					return err
 				}
 			}

beacon-chain/rpc/eth/light-client/handlers_test.go

@@ -146,6 +146,46 @@ func TestLightClientHandler_GetLightClientBootstrap_Deneb(t *testing.T) {
 	require.NotNil(t, resp.Data.CurrentSyncCommitteeBranch)
 }
 
+func TestLightClientHandler_GetLightClientBootstrap_Electra(t *testing.T) {
+	l := util.NewTestLightClient(t).SetupTestElectra(false) // result is same for true and false
+
+	slot := l.State.Slot()
+	stateRoot, err := l.State.HashTreeRoot(l.Ctx)
+	require.NoError(t, err)
+
+	mockBlocker := &testutil.MockBlocker{BlockToReturn: l.Block}
+	mockChainService := &mock.ChainService{Optimistic: true, Slot: &slot}
+	s := &Server{
+		Stater: &testutil.MockStater{StatesBySlot: map[primitives.Slot]state.BeaconState{
+			slot: l.State,
+		}},
+		Blocker:     mockBlocker,
+		HeadFetcher: mockChainService,
+	}
+	request := httptest.NewRequest("GET", "http://foo.com/", nil)
+	request.SetPathValue("block_root", hexutil.Encode(stateRoot[:]))
+	writer := httptest.NewRecorder()
+	writer.Body = &bytes.Buffer{}
+
+	s.GetLightClientBootstrap(writer, request)
+	require.Equal(t, http.StatusOK, writer.Code)
+	var resp structs.LightClientBootstrapResponse
+	err = json.Unmarshal(writer.Body.Bytes(), &resp)
+	require.NoError(t, err)
+	var respHeader structs.LightClientHeader
+	err = json.Unmarshal(resp.Data.Header, &respHeader)
+	require.NoError(t, err)
+	require.Equal(t, "electra", resp.Version)
+
+	blockHeader, err := l.Block.Header()
+	require.NoError(t, err)
+	require.Equal(t, hexutil.Encode(blockHeader.Header.BodyRoot), respHeader.Beacon.BodyRoot)
+	require.Equal(t, strconv.FormatUint(uint64(blockHeader.Header.Slot), 10), respHeader.Beacon.Slot)
+
+	require.NotNil(t, resp.Data.CurrentSyncCommittee)
+	require.NotNil(t, resp.Data.CurrentSyncCommitteeBranch)
+}
+
 func TestLightClientHandler_GetLightClientUpdatesByRangeAltair(t *testing.T) {
 	helpers.ClearCache()
 	ctx := context.Background()

beacon-chain/rpc/eth/light-client/helpers.go

@@ -30,7 +30,7 @@ func createLightClientBootstrap(ctx context.Context, state state.BeaconState, bl
 		return createLightClientBootstrapAltair(ctx, state, blk)
 	case version.Capella:
 		return createLightClientBootstrapCapella(ctx, state, blk)
-	case version.Deneb:
+	case version.Deneb, version.Electra:
 		return createLightClientBootstrapDeneb(ctx, state, blk)
 	}
 	return nil, fmt.Errorf("unsupported block version %s", version.String(blk.Version()))
@@ -91,7 +91,7 @@ func createLightClientBootstrapAltair(ctx context.Context, state state.BeaconSta
 		return nil, errors.Wrap(err, "could not get current sync committee proof")
 	}
 
-	branch := make([]string, fieldparams.NextSyncCommitteeBranchDepth)
+	branch := make([]string, fieldparams.SyncCommitteeBranchDepth)
 	for i, proof := range currentSyncCommitteeProof {
 		branch[i] = hexutil.Encode(proof)
 	}
@@ -159,7 +159,7 @@ func createLightClientBootstrapCapella(ctx context.Context, state state.BeaconSt
 		return nil, errors.Wrap(err, "could not get current sync committee proof")
 	}
 
-	branch := make([]string, fieldparams.NextSyncCommitteeBranchDepth)
+	branch := make([]string, fieldparams.SyncCommitteeBranchDepth)
 	for i, proof := range currentSyncCommitteeProof {
 		branch[i] = hexutil.Encode(proof)
 	}
@@ -226,8 +226,13 @@ func createLightClientBootstrapDeneb(ctx context.Context, state state.BeaconStat
 	if err != nil {
 		return nil, errors.Wrap(err, "could not get current sync committee proof")
 	}
-
-	branch := make([]string, fieldparams.NextSyncCommitteeBranchDepth)
+	var branch []string
+	switch block.Version() {
+	case version.Deneb:
+		branch = make([]string, fieldparams.SyncCommitteeBranchDepth)
+	case version.Electra:
+		branch = make([]string, fieldparams.SyncCommitteeBranchDepthElectra)
+	}
 	for i, proof := range currentSyncCommitteeProof {
 		branch[i] = hexutil.Encode(proof)
 	}
@@ -288,7 +293,7 @@ func newLightClientOptimisticUpdateFromBeaconState(
 }
 
 func IsSyncCommitteeUpdate(update *v2.LightClientUpdate) bool {
-	nextSyncCommitteeBranch := make([][]byte, fieldparams.NextSyncCommitteeBranchDepth)
+	nextSyncCommitteeBranch := make([][]byte, fieldparams.SyncCommitteeBranchDepth)
 	return !reflect.DeepEqual(update.NextSyncCommitteeBranch, nextSyncCommitteeBranch)
 }
 

beacon-chain/rpc/eth/light-client/helpers_test.go

@@ -13,7 +13,7 @@ import (
 
 // When the update has relevant sync committee
 func createNonEmptySyncCommitteeBranch() [][]byte {
-	res := make([][]byte, fieldparams.NextSyncCommitteeBranchDepth)
+	res := make([][]byte, fieldparams.SyncCommitteeBranchDepth)
 	res[0] = []byte("xyz")
 	return res
 }
@@ -101,7 +101,7 @@ func TestIsBetterUpdate(t *testing.T) {
 						}},
 					},
 				},
-				NextSyncCommitteeBranch: make([][]byte, fieldparams.NextSyncCommitteeBranchDepth),
+				NextSyncCommitteeBranch: make([][]byte, fieldparams.SyncCommitteeBranchDepth),
 				SignatureSlot:           9999,
 			},
 			newUpdate: &ethpbv2.LightClientUpdate{
@@ -147,7 +147,7 @@ func TestIsBetterUpdate(t *testing.T) {
 						}},
 					},
 				},
-				NextSyncCommitteeBranch: make([][]byte, fieldparams.NextSyncCommitteeBranchDepth),
+				NextSyncCommitteeBranch: make([][]byte, fieldparams.SyncCommitteeBranchDepth),
 				SignatureSlot:           9999,
 			},
 			expectedResult: false,

beacon-chain/state/interfaces.go

@@ -225,7 +225,7 @@ type ReadOnlySyncCommittee interface {
 type ReadOnlyDeposits interface {
 	DepositBalanceToConsume() (primitives.Gwei, error)
 	DepositRequestsStartIndex() (uint64, error)
-	PendingDeposits() ([]*ethpb.PendingDeposit, error)
+	PendingBalanceDeposits() ([]*ethpb.PendingBalanceDeposit, error)
 }
 
 type ReadOnlyConsolidations interface {
@@ -331,8 +331,8 @@ type WriteOnlyConsolidations interface {
 }
 
 type WriteOnlyDeposits interface {
-	AppendPendingDeposit(pd *ethpb.PendingDeposit) error
+	AppendPendingBalanceDeposit(index primitives.ValidatorIndex, amount uint64) error
 	SetDepositRequestsStartIndex(index uint64) error
-	SetPendingDeposits(val []*ethpb.PendingDeposit) error
+	SetPendingBalanceDeposits(val []*ethpb.PendingBalanceDeposit) error
 	SetDepositBalanceToConsume(primitives.Gwei) error
 }

beacon-chain/state/state-native/BUILD.bazel

@@ -7,11 +7,11 @@ go_library(
         "doc.go",
         "error.go",
         "getters_attestation.go",
+        "getters_balance_deposits.go",
         "getters_block.go",
         "getters_checkpoint.go",
         "getters_consolidation.go",
         "getters_deposit_requests.go",
-        "getters_deposits.go",
         "getters_eth1.go",
         "getters_exit.go",
         "getters_misc.go",
@@ -27,12 +27,12 @@ go_library(
         "proofs.go",
         "readonly_validator.go",
         "setters_attestation.go",
+        "setters_balance_deposits.go",
         "setters_block.go",
         "setters_checkpoint.go",
         "setters_churn.go",
         "setters_consolidation.go",
         "setters_deposit_requests.go",
-        "setters_deposits.go",
         "setters_eth1.go",
         "setters_misc.go",
         "setters_participation.go",
@@ -91,11 +91,11 @@ go_test(
     name = "go_default_test",
     srcs = [
         "getters_attestation_test.go",
+        "getters_balance_deposits_test.go",
         "getters_block_test.go",
         "getters_checkpoint_test.go",
         "getters_consolidation_test.go",
         "getters_deposit_requests_test.go",
-        "getters_deposits_test.go",
         "getters_exit_test.go",
         "getters_participation_test.go",
         "getters_test.go",
@@ -107,10 +107,10 @@ go_test(
         "readonly_validator_test.go",
         "references_test.go",
         "setters_attestation_test.go",
+        "setters_balance_deposits_test.go",
         "setters_churn_test.go",
         "setters_consolidation_test.go",
         "setters_deposit_requests_test.go",
-        "setters_deposits_test.go",
         "setters_eth1_test.go",
         "setters_misc_test.go",
         "setters_participation_test.go",

beacon-chain/state/state-native/beacon_state.go

@@ -65,7 +65,7 @@ type BeaconState struct {
 	earliestExitEpoch             primitives.Epoch
 	consolidationBalanceToConsume primitives.Gwei
 	earliestConsolidationEpoch    primitives.Epoch
-	pendingDeposits               []*ethpb.PendingDeposit           // pending_deposits: List[PendingDeposit, PENDING_DEPOSITS_LIMIT]
+	pendingBalanceDeposits        []*ethpb.PendingBalanceDeposit    // pending_balance_deposits: List[PendingBalanceDeposit, PENDING_BALANCE_DEPOSITS_LIMIT]
 	pendingPartialWithdrawals     []*ethpb.PendingPartialWithdrawal // pending_partial_withdrawals: List[PartialWithdrawal, PENDING_PARTIAL_WITHDRAWALS_LIMIT]
 	pendingConsolidations         []*ethpb.PendingConsolidation     // pending_consolidations: List[PendingConsolidation, PENDING_CONSOLIDATIONS_LIMIT]
 
@@ -121,7 +121,7 @@ type beaconStateMarshalable struct {
 	EarliestExitEpoch                   primitives.Epoch                        `json:"earliest_exit_epoch" yaml:"earliest_exit_epoch"`
 	ConsolidationBalanceToConsume       primitives.Gwei                         `json:"consolidation_balance_to_consume" yaml:"consolidation_balance_to_consume"`
 	EarliestConsolidationEpoch          primitives.Epoch                        `json:"earliest_consolidation_epoch" yaml:"earliest_consolidation_epoch"`
-	PendingDeposits                     []*ethpb.PendingDeposit                 `json:"pending_deposits" yaml:"pending_deposits"`
+	PendingBalanceDeposits              []*ethpb.PendingBalanceDeposit          `json:"pending_balance_deposits" yaml:"pending_balance_deposits"`
 	PendingPartialWithdrawals           []*ethpb.PendingPartialWithdrawal       `json:"pending_partial_withdrawals" yaml:"pending_partial_withdrawals"`
 	PendingConsolidations               []*ethpb.PendingConsolidation           `json:"pending_consolidations" yaml:"pending_consolidations"`
 }
@@ -190,7 +190,7 @@ func (b *BeaconState) MarshalJSON() ([]byte, error) {
 		EarliestExitEpoch:                   b.earliestExitEpoch,
 		ConsolidationBalanceToConsume:       b.consolidationBalanceToConsume,
 		EarliestConsolidationEpoch:          b.earliestConsolidationEpoch,
-		PendingDeposits:                     b.pendingDeposits,
+		PendingBalanceDeposits:              b.pendingBalanceDeposits,
 		PendingPartialWithdrawals:           b.pendingPartialWithdrawals,
 		PendingConsolidations:               b.pendingConsolidations,
 	}

beacon-chain/state/state-native/getters_balance_deposits.go

@@ -18,22 +18,22 @@ func (b *BeaconState) DepositBalanceToConsume() (primitives.Gwei, error) {
 	return b.depositBalanceToConsume, nil
 }
 
-// PendingDeposits is a non-mutating call to the beacon state which returns a deep copy of
+// PendingBalanceDeposits is a non-mutating call to the beacon state which returns a deep copy of
 // the pending balance deposit slice. This method requires access to the RLock on the state and
 // only applies in electra or later.
-func (b *BeaconState) PendingDeposits() ([]*ethpb.PendingDeposit, error) {
+func (b *BeaconState) PendingBalanceDeposits() ([]*ethpb.PendingBalanceDeposit, error) {
 	if b.version < version.Electra {
-		return nil, errNotSupported("PendingDeposits", b.version)
+		return nil, errNotSupported("PendingBalanceDeposits", b.version)
 	}
 	b.lock.RLock()
 	defer b.lock.RUnlock()
-	return b.pendingDepositsVal(), nil
+	return b.pendingBalanceDepositsVal(), nil
 }
 
-func (b *BeaconState) pendingDepositsVal() []*ethpb.PendingDeposit {
-	if b.pendingDeposits == nil {
+func (b *BeaconState) pendingBalanceDepositsVal() []*ethpb.PendingBalanceDeposit {
+	if b.pendingBalanceDeposits == nil {
 		return nil
 	}
 
-	return ethpb.CopySlice(b.pendingDeposits)
+	return ethpb.CopySlice(b.pendingBalanceDeposits)
 }

beacon-chain/state/state-native/getters_balance_deposits_test.go

@@ -25,40 +25,21 @@ func TestDepositBalanceToConsume(t *testing.T) {
 	require.ErrorContains(t, "not supported", err)
 }
 
-func TestPendingDeposits(t *testing.T) {
+func TestPendingBalanceDeposits(t *testing.T) {
 	s, err := state_native.InitializeFromProtoElectra(&eth.BeaconStateElectra{
-		PendingDeposits: []*eth.PendingDeposit{
-			{
-				PublicKey:             []byte{1, 2, 3},
-				WithdrawalCredentials: []byte{4, 5, 6},
-				Amount:                2,
-				Signature:             []byte{7, 8, 9},
-				Slot:                  1,
-			},
-			{
-				PublicKey:             []byte{11, 22, 33},
-				WithdrawalCredentials: []byte{44, 55, 66},
-				Amount:                4,
-				Signature:             []byte{77, 88, 99},
-				Slot:                  2,
-			},
+		PendingBalanceDeposits: []*eth.PendingBalanceDeposit{
+			{Index: 1, Amount: 2},
+			{Index: 3, Amount: 4},
 		},
 	})
 	require.NoError(t, err)
-	pbd, err := s.PendingDeposits()
+	pbd, err := s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 2, len(pbd))
-	require.DeepEqual(t, []byte{1, 2, 3}, pbd[0].PublicKey)
-	require.DeepEqual(t, []byte{4, 5, 6}, pbd[0].WithdrawalCredentials)
+	require.Equal(t, primitives.ValidatorIndex(1), pbd[0].Index)
 	require.Equal(t, uint64(2), pbd[0].Amount)
-	require.DeepEqual(t, []byte{7, 8, 9}, pbd[0].Signature)
-	require.Equal(t, primitives.Slot(1), pbd[0].Slot)
-
-	require.DeepEqual(t, []byte{11, 22, 33}, pbd[1].PublicKey)
-	require.DeepEqual(t, []byte{44, 55, 66}, pbd[1].WithdrawalCredentials)
+	require.Equal(t, primitives.ValidatorIndex(3), pbd[1].Index)
 	require.Equal(t, uint64(4), pbd[1].Amount)
-	require.DeepEqual(t, []byte{77, 88, 99}, pbd[1].Signature)
-	require.Equal(t, primitives.Slot(2), pbd[1].Slot)
 
 	// Fails for older than electra state
 	s, err = state_native.InitializeFromProtoDeneb(&eth.BeaconStateDeneb{})

beacon-chain/state/state-native/getters_state.go

@@ -208,7 +208,7 @@ func (b *BeaconState) ToProtoUnsafe() interface{} {
 			EarliestExitEpoch:             b.earliestExitEpoch,
 			ConsolidationBalanceToConsume: b.consolidationBalanceToConsume,
 			EarliestConsolidationEpoch:    b.earliestConsolidationEpoch,
-			PendingDeposits:               b.pendingDeposits,
+			PendingBalanceDeposits:        b.pendingBalanceDeposits,
 			PendingPartialWithdrawals:     b.pendingPartialWithdrawals,
 			PendingConsolidations:         b.pendingConsolidations,
 		}
@@ -414,7 +414,7 @@ func (b *BeaconState) ToProto() interface{} {
 			EarliestExitEpoch:             b.earliestExitEpoch,
 			ConsolidationBalanceToConsume: b.consolidationBalanceToConsume,
 			EarliestConsolidationEpoch:    b.earliestConsolidationEpoch,
-			PendingDeposits:               b.pendingDepositsVal(),
+			PendingBalanceDeposits:        b.pendingBalanceDepositsVal(),
 			PendingPartialWithdrawals:     b.pendingPartialWithdrawalsVal(),
 			PendingConsolidations:         b.pendingConsolidationsVal(),
 		}

beacon-chain/state/state-native/hasher.go

@@ -296,12 +296,12 @@ func ComputeFieldRootsWithHasher(ctx context.Context, state *BeaconState) ([][]b
 		eceRoot := ssz.Uint64Root(uint64(state.earliestConsolidationEpoch))
 		fieldRoots[types.EarliestConsolidationEpoch.RealPosition()] = eceRoot[:]
 
-		// PendingDeposits root.
-		pbdRoot, err := stateutil.PendingDepositsRoot(state.pendingDeposits)
+		// PendingBalanceDeposits root.
+		pbdRoot, err := stateutil.PendingBalanceDepositsRoot(state.pendingBalanceDeposits)
 		if err != nil {
 			return nil, errors.Wrap(err, "could not compute pending balance deposits merkleization")
 		}
-		fieldRoots[types.PendingDeposits.RealPosition()] = pbdRoot[:]
+		fieldRoots[types.PendingBalanceDeposits.RealPosition()] = pbdRoot[:]
 
 		// PendingPartialWithdrawals root.
 		ppwRoot, err := stateutil.PendingPartialWithdrawalsRoot(state.pendingPartialWithdrawals)

beacon-chain/state/state-native/setters_balance_deposits.go

@@ -8,43 +8,43 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 )
 
-// AppendPendingDeposit is a mutating call to the beacon state to create and append a pending
+// AppendPendingBalanceDeposit is a mutating call to the beacon state to create and append a pending
 // balance deposit object on to the state. This method requires access to the Lock on the state and
 // only applies in electra or later.
-func (b *BeaconState) AppendPendingDeposit(pd *ethpb.PendingDeposit) error {
+func (b *BeaconState) AppendPendingBalanceDeposit(index primitives.ValidatorIndex, amount uint64) error {
 	if b.version < version.Electra {
-		return errNotSupported("AppendPendingDeposit", b.version)
+		return errNotSupported("AppendPendingBalanceDeposit", b.version)
 	}
 	b.lock.Lock()
 	defer b.lock.Unlock()
 
-	b.sharedFieldReferences[types.PendingDeposits].MinusRef()
-	b.sharedFieldReferences[types.PendingDeposits] = stateutil.NewRef(1)
+	b.sharedFieldReferences[types.PendingBalanceDeposits].MinusRef()
+	b.sharedFieldReferences[types.PendingBalanceDeposits] = stateutil.NewRef(1)
 
-	b.pendingDeposits = append(b.pendingDeposits, pd)
+	b.pendingBalanceDeposits = append(b.pendingBalanceDeposits, &ethpb.PendingBalanceDeposit{Index: index, Amount: amount})
 
-	b.markFieldAsDirty(types.PendingDeposits)
-	b.rebuildTrie[types.PendingDeposits] = true
+	b.markFieldAsDirty(types.PendingBalanceDeposits)
+	b.rebuildTrie[types.PendingBalanceDeposits] = true
 	return nil
 }
 
-// SetPendingDeposits is a mutating call to the beacon state which replaces the pending
+// SetPendingBalanceDeposits is a mutating call to the beacon state which replaces the pending
 // balance deposit slice with the provided value. This method requires access to the Lock on the
 // state and only applies in electra or later.
-func (b *BeaconState) SetPendingDeposits(val []*ethpb.PendingDeposit) error {
+func (b *BeaconState) SetPendingBalanceDeposits(val []*ethpb.PendingBalanceDeposit) error {
 	if b.version < version.Electra {
-		return errNotSupported("SetPendingDeposits", b.version)
+		return errNotSupported("SetPendingBalanceDeposits", b.version)
 	}
 	b.lock.Lock()
 	defer b.lock.Unlock()
 
-	b.sharedFieldReferences[types.PendingDeposits].MinusRef()
-	b.sharedFieldReferences[types.PendingDeposits] = stateutil.NewRef(1)
+	b.sharedFieldReferences[types.PendingBalanceDeposits].MinusRef()
+	b.sharedFieldReferences[types.PendingBalanceDeposits] = stateutil.NewRef(1)
 
-	b.pendingDeposits = val
+	b.pendingBalanceDeposits = val
 
-	b.markFieldAsDirty(types.PendingDeposits)
-	b.rebuildTrie[types.PendingDeposits] = true
+	b.markFieldAsDirty(types.PendingBalanceDeposits)
+	b.rebuildTrie[types.PendingBalanceDeposits] = true
 	return nil
 }
 

beacon-chain/state/state-native/setters_balance_deposits_test.go

@@ -9,52 +9,40 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/testing/require"
 )
 
-func TestAppendPendingDeposit(t *testing.T) {
+func TestAppendPendingBalanceDeposit(t *testing.T) {
 	s, err := state_native.InitializeFromProtoElectra(&eth.BeaconStateElectra{})
 	require.NoError(t, err)
-	pbd, err := s.PendingDeposits()
+	pbd, err := s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 0, len(pbd))
-	creds := []byte{0xFA, 0xCC}
-	pubkey := []byte{0xAA, 0xBB}
-	sig := []byte{0xCC, 0xDD}
-	require.NoError(t, s.AppendPendingDeposit(&eth.PendingDeposit{
-		PublicKey:             pubkey,
-		WithdrawalCredentials: creds,
-		Amount:                10,
-		Signature:             sig,
-		Slot:                  1,
-	}))
-	pbd, err = s.PendingDeposits()
+	require.NoError(t, s.AppendPendingBalanceDeposit(1, 10))
+	pbd, err = s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 1, len(pbd))
-	require.DeepEqual(t, pubkey, pbd[0].PublicKey)
+	require.Equal(t, primitives.ValidatorIndex(1), pbd[0].Index)
 	require.Equal(t, uint64(10), pbd[0].Amount)
-	require.DeepEqual(t, creds, pbd[0].WithdrawalCredentials)
-	require.Equal(t, primitives.Slot(1), pbd[0].Slot)
-	require.DeepEqual(t, sig, pbd[0].Signature)
 
 	// Fails for versions older than electra
 	s, err = state_native.InitializeFromProtoDeneb(&eth.BeaconStateDeneb{})
 	require.NoError(t, err)
-	require.ErrorContains(t, "not supported", s.AppendPendingDeposit(&eth.PendingDeposit{}))
+	require.ErrorContains(t, "not supported", s.AppendPendingBalanceDeposit(1, 1))
 }
 
-func TestSetPendingDeposits(t *testing.T) {
+func TestSetPendingBalanceDeposits(t *testing.T) {
 	s, err := state_native.InitializeFromProtoElectra(&eth.BeaconStateElectra{})
 	require.NoError(t, err)
-	pbd, err := s.PendingDeposits()
+	pbd, err := s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 0, len(pbd))
-	require.NoError(t, s.SetPendingDeposits([]*eth.PendingDeposit{{}, {}, {}}))
-	pbd, err = s.PendingDeposits()
+	require.NoError(t, s.SetPendingBalanceDeposits([]*eth.PendingBalanceDeposit{{}, {}, {}}))
+	pbd, err = s.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 3, len(pbd))
 
 	// Fails for versions older than electra
 	s, err = state_native.InitializeFromProtoDeneb(&eth.BeaconStateDeneb{})
 	require.NoError(t, err)
-	require.ErrorContains(t, "not supported", s.SetPendingDeposits([]*eth.PendingDeposit{{}, {}, {}}))
+	require.ErrorContains(t, "not supported", s.SetPendingBalanceDeposits([]*eth.PendingBalanceDeposit{{}, {}, {}}))
 }
 
 func TestSetDepositBalanceToConsume(t *testing.T) {

beacon-chain/state/state-native/state_trie.go

@@ -106,7 +106,7 @@ var electraFields = append(
 	types.EarliestExitEpoch,
 	types.ConsolidationBalanceToConsume,
 	types.EarliestConsolidationEpoch,
-	types.PendingDeposits,
+	types.PendingBalanceDeposits,
 	types.PendingPartialWithdrawals,
 	types.PendingConsolidations,
 )
@@ -755,7 +755,7 @@ func InitializeFromProtoUnsafeElectra(st *ethpb.BeaconStateElectra) (state.Beaco
 		earliestExitEpoch:                 st.EarliestExitEpoch,
 		consolidationBalanceToConsume:     st.ConsolidationBalanceToConsume,
 		earliestConsolidationEpoch:        st.EarliestConsolidationEpoch,
-		pendingDeposits:                   st.PendingDeposits,
+		pendingBalanceDeposits:            st.PendingBalanceDeposits,
 		pendingPartialWithdrawals:         st.PendingPartialWithdrawals,
 		pendingConsolidations:             st.PendingConsolidations,
 
@@ -820,7 +820,7 @@ func InitializeFromProtoUnsafeElectra(st *ethpb.BeaconStateElectra) (state.Beaco
 	b.sharedFieldReferences[types.CurrentEpochParticipationBits] = stateutil.NewRef(1)
 	b.sharedFieldReferences[types.LatestExecutionPayloadHeaderDeneb] = stateutil.NewRef(1) // New in Electra.
 	b.sharedFieldReferences[types.HistoricalSummaries] = stateutil.NewRef(1)               // New in Capella.
-	b.sharedFieldReferences[types.PendingDeposits] = stateutil.NewRef(1)                   // New in Electra.
+	b.sharedFieldReferences[types.PendingBalanceDeposits] = stateutil.NewRef(1)            // New in Electra.
 	b.sharedFieldReferences[types.PendingPartialWithdrawals] = stateutil.NewRef(1)         // New in Electra.
 	b.sharedFieldReferences[types.PendingConsolidations] = stateutil.NewRef(1)             // New in Electra.
 	if !features.Get().EnableExperimentalState {
@@ -898,7 +898,7 @@ func (b *BeaconState) Copy() state.BeaconState {
 		currentEpochParticipation:  b.currentEpochParticipation,
 		inactivityScores:           b.inactivityScores,
 		inactivityScoresMultiValue: b.inactivityScoresMultiValue,
-		pendingDeposits:            b.pendingDeposits,
+		pendingBalanceDeposits:     b.pendingBalanceDeposits,
 		pendingPartialWithdrawals:  b.pendingPartialWithdrawals,
 		pendingConsolidations:      b.pendingConsolidations,
 
@@ -1301,8 +1301,8 @@ func (b *BeaconState) rootSelector(ctx context.Context, field types.FieldIndex)
 		return ssz.Uint64Root(uint64(b.consolidationBalanceToConsume)), nil
 	case types.EarliestConsolidationEpoch:
 		return ssz.Uint64Root(uint64(b.earliestConsolidationEpoch)), nil
-	case types.PendingDeposits:
-		return stateutil.PendingDepositsRoot(b.pendingDeposits)
+	case types.PendingBalanceDeposits:
+		return stateutil.PendingBalanceDepositsRoot(b.pendingBalanceDeposits)
 	case types.PendingPartialWithdrawals:
 		return stateutil.PendingPartialWithdrawalsRoot(b.pendingPartialWithdrawals)
 	case types.PendingConsolidations:

beacon-chain/state/state-native/types/types.go

@@ -106,8 +106,8 @@ func (f FieldIndex) String() string {
 		return "consolidationBalanceToConsume"
 	case EarliestConsolidationEpoch:
 		return "earliestConsolidationEpoch"
-	case PendingDeposits:
-		return "pendingDeposits"
+	case PendingBalanceDeposits:
+		return "pendingBalanceDeposits"
 	case PendingPartialWithdrawals:
 		return "pendingPartialWithdrawals"
 	case PendingConsolidations:
@@ -189,7 +189,7 @@ func (f FieldIndex) RealPosition() int {
 		return 32
 	case EarliestConsolidationEpoch:
 		return 33
-	case PendingDeposits:
+	case PendingBalanceDeposits:
 		return 34
 	case PendingPartialWithdrawals:
 		return 35
@@ -256,7 +256,7 @@ const (
 	EarliestExitEpoch             // Electra: EIP-7251
 	ConsolidationBalanceToConsume // Electra: EIP-7251
 	EarliestConsolidationEpoch    // Electra: EIP-7251
-	PendingDeposits               // Electra: EIP-7251
+	PendingBalanceDeposits        // Electra: EIP-7251
 	PendingPartialWithdrawals     // Electra: EIP-7251
 	PendingConsolidations         // Electra: EIP-7251
 )

beacon-chain/state/stategen/BUILD.bazel

@@ -72,21 +72,18 @@ go_test(
         "//beacon-chain/forkchoice/doubly-linked-tree:go_default_library",
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",
-        "//beacon-chain/state/testing:go_default_library",
         "//config/params:go_default_library",
         "//consensus-types/blocks:go_default_library",
         "//consensus-types/blocks/testing:go_default_library",
         "//consensus-types/interfaces:go_default_library",
         "//consensus-types/mock:go_default_library",
         "//consensus-types/primitives:go_default_library",
-        "//crypto/bls:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//runtime/version:go_default_library",
         "//testing/assert:go_default_library",
         "//testing/require:go_default_library",
         "//testing/util:go_default_library",
-        "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_sirupsen_logrus//hooks/test:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",

beacon-chain/state/stategen/replay_test.go

@@ -4,18 +4,15 @@ import (
 	"context"
 	"testing"
 
-	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/blocks"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/v5/beacon-chain/db"
 	testDB "github.com/prysmaticlabs/prysm/v5/beacon-chain/db/testing"
 	doublylinkedtree "github.com/prysmaticlabs/prysm/v5/beacon-chain/forkchoice/doubly-linked-tree"
-	stateTesting "github.com/prysmaticlabs/prysm/v5/beacon-chain/state/testing"
 	"github.com/prysmaticlabs/prysm/v5/config/params"
 	consensusblocks "github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v5/crypto/bls"
 	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
@@ -212,30 +209,13 @@ func TestReplayBlocks_ProcessEpoch_Electra(t *testing.T) {
 	beaconState, _ := util.DeterministicGenesisStateElectra(t, 1)
 	require.NoError(t, beaconState.SetDepositBalanceToConsume(100))
 	amountAvailForProcessing := helpers.ActivationExitChurnLimit(1_000 * 1e9)
-	genesisBlock := util.NewBeaconBlockElectra()
-
-	sk, err := bls.RandKey()
-	require.NoError(t, err)
-	ethAddress, err := hexutil.Decode("0x967646dCD8d34F4E02204faeDcbAe0cC96fB9245")
-	require.NoError(t, err)
-	newCredentials := make([]byte, 12)
-	newCredentials[0] = params.BeaconConfig().ETH1AddressWithdrawalPrefixByte
-	withdrawalCredentials := append(newCredentials, ethAddress...)
-	ffe := params.BeaconConfig().FarFutureEpoch
-	require.NoError(t, beaconState.SetValidators([]*ethpb.Validator{
+	require.NoError(t, beaconState.SetPendingBalanceDeposits([]*ethpb.PendingBalanceDeposit{
 		{
-			PublicKey:             sk.PublicKey().Marshal(),
-			WithdrawalCredentials: withdrawalCredentials,
-			ExitEpoch:             ffe,
-			EffectiveBalance:      params.BeaconConfig().MinActivationBalance,
+			Amount: uint64(amountAvailForProcessing) / 10,
+			Index:  primitives.ValidatorIndex(0),
 		},
 	}))
-	beaconState.SaveValidatorIndices()
-
-	require.NoError(t, beaconState.SetPendingDeposits([]*ethpb.PendingDeposit{
-		stateTesting.GeneratePendingDeposit(t, sk, uint64(amountAvailForProcessing)/10, bytesutil.ToBytes32(withdrawalCredentials), genesisBlock.Block.Slot),
-	}))
-
+	genesisBlock := util.NewBeaconBlockElectra()
 	bodyRoot, err := genesisBlock.Block.HashTreeRoot()
 	require.NoError(t, err)
 	err = beaconState.SetLatestBlockHeader(&ethpb.BeaconBlockHeader{
@@ -258,7 +238,7 @@ func TestReplayBlocks_ProcessEpoch_Electra(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, primitives.Gwei(0), res)
 
-	remaining, err := newState.PendingDeposits()
+	remaining, err := newState.PendingBalanceDeposits()
 	require.NoError(t, err)
 	require.Equal(t, 0, len(remaining))
 

beacon-chain/state/stateutil/BUILD.bazel

@@ -12,8 +12,8 @@ go_library(
         "historical_summaries_root.go",
         "participation_bit_root.go",
         "pending_attestation_root.go",
+        "pending_balance_deposits_root.go",
         "pending_consolidations_root.go",
-        "pending_deposits_root.go",
         "pending_partial_withdrawals_root.go",
         "reference.go",
         "sync_committee.root.go",

beacon-chain/state/stateutil/pending_balance_deposits_root.go

@@ -6,6 +6,6 @@ import (
 	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 )
 
-func PendingDepositsRoot(slice []*ethpb.PendingDeposit) ([32]byte, error) {
-	return ssz.SliceRoot(slice, fieldparams.PendingDepositsLimit)
+func PendingBalanceDepositsRoot(slice []*ethpb.PendingBalanceDeposit) ([32]byte, error) {
+	return ssz.SliceRoot(slice, fieldparams.PendingBalanceDepositsLimit)
 }

beacon-chain/state/testing/BUILD.bazel

@@ -4,25 +4,17 @@ go_library(
     name = "go_default_library",
     testonly = True,
     srcs = [
-        "generators.go",
         "getters.go",
         "getters_block.go",
         "getters_checkpoint.go",
         "getters_validator.go",
     ],
     importpath = "github.com/prysmaticlabs/prysm/v5/beacon-chain/state/testing",
-    visibility = [
-        "//beacon-chain/core:__subpackages__",
-        "//beacon-chain/state:__subpackages__",
-    ],
+    visibility = ["//beacon-chain/state:__subpackages__"],
     deps = [
-        "//beacon-chain/core/blocks:go_default_library",
-        "//beacon-chain/core/signing:go_default_library",
         "//beacon-chain/state:go_default_library",
         "//config/fieldparams:go_default_library",
-        "//config/params:go_default_library",
         "//consensus-types/primitives:go_default_library",
-        "//crypto/bls/common:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//testing/assert:go_default_library",

beacon-chain/state/testing/generators.go

@@ -1,44 +0,0 @@
-package testing
-
-import (
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/blocks"
-	"github.com/prysmaticlabs/prysm/v5/beacon-chain/core/signing"
-	"github.com/prysmaticlabs/prysm/v5/config/params"
-	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v5/crypto/bls/common"
-	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/v5/testing/require"
-)
-
-// GeneratePendingDeposit is used for testing and producing a signed pending deposit
-func GeneratePendingDeposit(t *testing.T, key common.SecretKey, amount uint64, withdrawalCredentials [32]byte, slot primitives.Slot) *ethpb.PendingDeposit {
-	dm := &ethpb.DepositMessage{
-		PublicKey:             key.PublicKey().Marshal(),
-		WithdrawalCredentials: withdrawalCredentials[:],
-		Amount:                amount,
-	}
-	domain, err := signing.ComputeDomain(params.BeaconConfig().DomainDeposit, nil, nil)
-	require.NoError(t, err)
-	sr, err := signing.ComputeSigningRoot(dm, domain)
-	require.NoError(t, err)
-	sig := key.Sign(sr[:])
-	depositData := &ethpb.Deposit_Data{
-		PublicKey:             bytesutil.SafeCopyBytes(dm.PublicKey),
-		WithdrawalCredentials: bytesutil.SafeCopyBytes(dm.WithdrawalCredentials),
-		Amount:                dm.Amount,
-		Signature:             sig.Marshal(),
-	}
-	valid, err := blocks.IsValidDepositSignature(depositData)
-	require.NoError(t, err)
-	require.Equal(t, true, valid)
-	return &ethpb.PendingDeposit{
-		PublicKey:             bytesutil.SafeCopyBytes(dm.PublicKey),
-		WithdrawalCredentials: bytesutil.SafeCopyBytes(dm.WithdrawalCredentials),
-		Amount:                dm.Amount,
-		Signature:             sig.Marshal(),
-		Slot:                  slot,
-	}
-}

config/fieldparams/mainnet.go

@@ -33,8 +33,11 @@ const (
 	BlobSize                              = 131072        // defined to match blob.size in bazel ssz codegen
 	BlobSidecarSize                       = 131928        // defined to match blob sidecar size in bazel ssz codegen
 	KzgCommitmentInclusionProofDepth      = 17            // Merkle proof depth for blob_kzg_commitments list item
-	NextSyncCommitteeBranchDepth          = 5             // NextSyncCommitteeBranchDepth defines the depth of the next sync committee branch.
-	PendingDepositsLimit                  = 134217728     // Maximum number of pending balance deposits in the beacon state.
+	ExecutionBranchDepth                  = 4             // ExecutionBranchDepth defines the number of leaves in a merkle proof of the execution payload header.
+	SyncCommitteeBranchDepth              = 5             // SyncCommitteeBranchDepth defines the number of leaves in a merkle proof of a sync committee.
+	SyncCommitteeBranchDepthElectra       = 6             // SyncCommitteeBranchDepthElectra defines the number of leaves in a merkle proof of a sync committee.
+	FinalityBranchDepth                   = 6             // FinalityBranchDepth defines the number of leaves in a merkle proof of the finalized checkpoint root.
+	PendingBalanceDepositsLimit           = 134217728     // Maximum number of pending balance deposits in the beacon state.
 	PendingPartialWithdrawalsLimit        = 134217728     // Maximum number of pending partial withdrawals in the beacon state.
 	PendingConsolidationsLimit            = 262144        // Maximum number of pending consolidations in the beacon state.
 	MaxDepositRequestsPerPayload          = 8192          // Maximum number of deposit requests in an execution payload.

config/fieldparams/minimal.go

@@ -33,8 +33,11 @@ const (
 	BlobSize                              = 131072        // defined to match blob.size in bazel ssz codegen
 	BlobSidecarSize                       = 131928        // defined to match blob sidecar size in bazel ssz codegen
 	KzgCommitmentInclusionProofDepth      = 17            // Merkle proof depth for blob_kzg_commitments list item
-	NextSyncCommitteeBranchDepth          = 5             // NextSyncCommitteeBranchDepth defines the depth of the next sync committee branch.
-	PendingDepositsLimit                  = 134217728     // Maximum number of pending balance deposits in the beacon state.
+	ExecutionBranchDepth                  = 4             // ExecutionBranchDepth defines the number of leaves in a merkle proof of the execution payload header.
+	SyncCommitteeBranchDepth              = 5             // SyncCommitteeBranchDepth defines the number of leaves in a merkle proof of a sync committee.
+	SyncCommitteeBranchDepthElectra       = 6             // SyncCommitteeBranchDepthElectra defines the number of leaves in a merkle proof of a sync committee.
+	FinalityBranchDepth                   = 6             // FinalityBranchDepth defines the number of leaves in a merkle proof of the finalized checkpoint root.
+	PendingBalanceDepositsLimit           = 134217728     // Maximum number of pending balance deposits in the beacon state.
 	PendingPartialWithdrawalsLimit        = 64            // Maximum number of pending partial withdrawals in the beacon state.
 	PendingConsolidationsLimit            = 64            // Maximum number of pending consolidations in the beacon state.
 	MaxDepositRequestsPerPayload          = 4             // Maximum number of deposit requests in an execution payload.

config/params/config.go

@@ -244,12 +244,11 @@ type BeaconChainConfig struct {
 	MaxEffectiveBalanceElectra            uint64 `yaml:"MAX_EFFECTIVE_BALANCE_ELECTRA" spec:"true"`              // MaxEffectiveBalanceElectra is the maximal amount of Gwei that is effective for staking, increased in electra.
 	MinSlashingPenaltyQuotientElectra     uint64 `yaml:"MIN_SLASHING_PENALTY_QUOTIENT_ELECTRA" spec:"true"`      // MinSlashingPenaltyQuotientElectra is used to calculate the minimum penalty to prevent DoS attacks, modified for electra.
 	WhistleBlowerRewardQuotientElectra    uint64 `yaml:"WHISTLEBLOWER_REWARD_QUOTIENT_ELECTRA" spec:"true"`      // WhistleBlowerRewardQuotientElectra is used to calculate whistle blower reward, modified in electra.
-	PendingDepositLimit                   uint64 `yaml:"PENDING_DEPOSITS_LIMIT" spec:"true"`                     // PendingDepositLimit is the maximum number of pending balance deposits allowed in the beacon state.
+	PendingBalanceDepositLimit            uint64 `yaml:"PENDING_BALANCE_DEPOSITS_LIMIT" spec:"true"`             // PendingBalanceDepositLimit is the maximum number of pending balance deposits allowed in the beacon state.
 	PendingPartialWithdrawalsLimit        uint64 `yaml:"PENDING_PARTIAL_WITHDRAWALS_LIMIT" spec:"true"`          // PendingPartialWithdrawalsLimit is the maximum number of pending partial withdrawals allowed in the beacon state.
 	PendingConsolidationsLimit            uint64 `yaml:"PENDING_CONSOLIDATIONS_LIMIT" spec:"true"`               // PendingConsolidationsLimit is the maximum number of pending validator consolidations allowed in the beacon state.
 	MaxConsolidationsRequestsPerPayload   uint64 `yaml:"MAX_CONSOLIDATION_REQUESTS_PER_PAYLOAD" spec:"true"`     // MaxConsolidationsRequestsPerPayload is the maximum number of consolidations in a block.
 	MaxPendingPartialsPerWithdrawalsSweep uint64 `yaml:"MAX_PENDING_PARTIALS_PER_WITHDRAWALS_SWEEP" spec:"true"` // MaxPendingPartialsPerWithdrawalsSweep is the maximum number of pending partial withdrawals to process per payload.
-	MaxPendingDepositsPerEpoch            uint64 `yaml:"MAX_PENDING_DEPOSITS_PER_EPOCH" spec:"true"`             // MaxPendingDepositsPerEpoch is the maximum number of pending deposits per epoch processing.
 	FullExitRequestAmount                 uint64 `yaml:"FULL_EXIT_REQUEST_AMOUNT" spec:"true"`                   // FullExitRequestAmount is the amount of Gwei required to request a full exit.
 	MaxWithdrawalRequestsPerPayload       uint64 `yaml:"MAX_WITHDRAWAL_REQUESTS_PER_PAYLOAD" spec:"true"`        // MaxWithdrawalRequestsPerPayload is the maximum number of execution layer withdrawal requests in each payload.
 	MaxDepositRequestsPerPayload          uint64 `yaml:"MAX_DEPOSIT_REQUESTS_PER_PAYLOAD" spec:"true"`           // MaxDepositRequestsPerPayload is the maximum number of execution layer deposits in each payload

config/params/mainnet_config.go

@@ -282,13 +282,12 @@ var mainnetBeaconConfig = &BeaconChainConfig{
 	MaxEffectiveBalanceElectra:            2048_000_000_000,
 	MinSlashingPenaltyQuotientElectra:     4096,
 	WhistleBlowerRewardQuotientElectra:    4096,
-	PendingDepositLimit:                   134_217_728,
+	PendingBalanceDepositLimit:            134_217_728,
 	PendingPartialWithdrawalsLimit:        134_217_728,
 	PendingConsolidationsLimit:            262_144,
 	MinActivationBalance:                  32_000_000_000,
 	MaxConsolidationsRequestsPerPayload:   1,
 	MaxPendingPartialsPerWithdrawalsSweep: 8,
-	MaxPendingDepositsPerEpoch:            16,
 	FullExitRequestAmount:                 0,
 	MaxWithdrawalRequestsPerPayload:       16,
 	MaxDepositRequestsPerPayload:          8192, // 2**13 (= 8192)

config/params/minimal_config.go

@@ -111,8 +111,6 @@ func MinimalSpecConfig() *BeaconChainConfig {
 	minimalConfig.MaxDepositRequestsPerPayload = 4
 	minimalConfig.PendingPartialWithdrawalsLimit = 64
 	minimalConfig.MaxPendingPartialsPerWithdrawalsSweep = 1
-	minimalConfig.PendingDepositLimit = 134217728
-	minimalConfig.MaxPendingDepositsPerEpoch = 16
 
 	// Ethereum PoW parameters.
 	minimalConfig.DepositChainID = 5   // Chain ID of eth1 goerli.

consensus-types/interfaces/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "beacon_block.go",
         "error.go",
+        "light_client.go",
         "utils.go",
         "validator.go",
     ],

consensus-types/interfaces/light_client.go

@@ -0,0 +1,58 @@
+package interfaces
+
+import (
+	ssz "github.com/prysmaticlabs/fastssz"
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+)
+
+type LightClientExecutionBranch = [fieldparams.ExecutionBranchDepth][fieldparams.RootLength]byte
+type LightClientSyncCommitteeBranch = [fieldparams.SyncCommitteeBranchDepth][fieldparams.RootLength]byte
+type LightClientFinalityBranch = [fieldparams.FinalityBranchDepth][fieldparams.RootLength]byte
+
+type LightClientHeader interface {
+	ssz.Marshaler
+	Version() int
+	Beacon() *pb.BeaconBlockHeader
+	Execution() (ExecutionData, error)
+	ExecutionBranch() (LightClientExecutionBranch, error)
+}
+
+type LightClientBootstrap interface {
+	ssz.Marshaler
+	Version() int
+	Header() LightClientHeader
+	CurrentSyncCommittee() *pb.SyncCommittee
+	CurrentSyncCommitteeBranch() LightClientSyncCommitteeBranch
+}
+
+type LightClientUpdate interface {
+	ssz.Marshaler
+	Version() int
+	AttestedHeader() LightClientHeader
+	NextSyncCommittee() *pb.SyncCommittee
+	NextSyncCommitteeBranch() LightClientSyncCommitteeBranch
+	FinalizedHeader() LightClientHeader
+	FinalityBranch() LightClientFinalityBranch
+	SyncAggregate() *pb.SyncAggregate
+	SignatureSlot() primitives.Slot
+}
+
+type LightClientFinalityUpdate interface {
+	ssz.Marshaler
+	Version() int
+	AttestedHeader() LightClientHeader
+	FinalizedHeader() LightClientHeader
+	FinalityBranch() LightClientFinalityBranch
+	SyncAggregate() *pb.SyncAggregate
+	SignatureSlot() primitives.Slot
+}
+
+type LightClientOptimisticUpdate interface {
+	ssz.Marshaler
+	Version() int
+	AttestedHeader() LightClientHeader
+	SyncAggregate() *pb.SyncAggregate
+	SignatureSlot() primitives.Slot
+}

consensus-types/light-client/BUILD.bazel

@@ -0,0 +1,26 @@
+load("@prysm//tools/go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "bootstrap.go",
+        "finality_update.go",
+        "header.go",
+        "helpers.go",
+        "optimistic_update.go",
+        "update.go",
+    ],
+    importpath = "github.com/prysmaticlabs/prysm/v5/consensus-types/light-client",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//config/fieldparams:go_default_library",
+        "//consensus-types:go_default_library",
+        "//consensus-types/blocks:go_default_library",
+        "//consensus-types/interfaces:go_default_library",
+        "//consensus-types/primitives:go_default_library",
+        "//encoding/bytesutil:go_default_library",
+        "//proto/prysm/v1alpha1:go_default_library",
+        "//runtime/version:go_default_library",
+        "@org_golang_google_protobuf//proto:go_default_library",
+    ],
+)

consensus-types/light-client/bootstrap.go

@@ -0,0 +1,208 @@
+package light_client
+
+import (
+	"fmt"
+
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	consensustypes "github.com/prysmaticlabs/prysm/v5/consensus-types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"google.golang.org/protobuf/proto"
+)
+
+func NewWrappedBootstrap(m proto.Message) (interfaces.LightClientBootstrap, error) {
+	if m == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	switch t := m.(type) {
+	case *pb.LightClientBootstrapAltair:
+		return NewWrappedBootstrapAltair(t)
+	case *pb.LightClientBootstrapCapella:
+		return NewWrappedBootstrapCapella(t)
+	case *pb.LightClientBootstrapDeneb:
+		return NewWrappedBootstrapDeneb(t)
+	default:
+		return nil, fmt.Errorf("cannot construct light client bootstrap from type %T", t)
+	}
+}
+
+type bootstrapAltair struct {
+	p                          *pb.LightClientBootstrapAltair
+	header                     interfaces.LightClientHeader
+	currentSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+}
+
+var _ interfaces.LightClientBootstrap = &bootstrapAltair{}
+
+func NewWrappedBootstrapAltair(p *pb.LightClientBootstrapAltair) (interfaces.LightClientBootstrap, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	header, err := NewWrappedHeaderAltair(p.Header)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.CurrentSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &bootstrapAltair{
+		p:                          p,
+		header:                     header,
+		currentSyncCommitteeBranch: branch,
+	}, nil
+}
+
+func (h *bootstrapAltair) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *bootstrapAltair) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *bootstrapAltair) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *bootstrapAltair) Version() int {
+	return version.Altair
+}
+
+func (h *bootstrapAltair) Header() interfaces.LightClientHeader {
+	return h.header
+}
+
+func (h *bootstrapAltair) CurrentSyncCommittee() *pb.SyncCommittee {
+	return h.p.CurrentSyncCommittee
+}
+
+func (h *bootstrapAltair) CurrentSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return h.currentSyncCommitteeBranch
+}
+
+type bootstrapCapella struct {
+	p                          *pb.LightClientBootstrapCapella
+	header                     interfaces.LightClientHeader
+	currentSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+}
+
+var _ interfaces.LightClientBootstrap = &bootstrapCapella{}
+
+func NewWrappedBootstrapCapella(p *pb.LightClientBootstrapCapella) (interfaces.LightClientBootstrap, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	header, err := NewWrappedHeaderCapella(p.Header)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.CurrentSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &bootstrapCapella{
+		p:                          p,
+		header:                     header,
+		currentSyncCommitteeBranch: branch,
+	}, nil
+}
+
+func (h *bootstrapCapella) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *bootstrapCapella) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *bootstrapCapella) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *bootstrapCapella) Version() int {
+	return version.Capella
+}
+
+func (h *bootstrapCapella) Header() interfaces.LightClientHeader {
+	return h.header
+}
+
+func (h *bootstrapCapella) CurrentSyncCommittee() *pb.SyncCommittee {
+	return h.p.CurrentSyncCommittee
+}
+
+func (h *bootstrapCapella) CurrentSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return h.currentSyncCommitteeBranch
+}
+
+type bootstrapDeneb struct {
+	p                          *pb.LightClientBootstrapDeneb
+	header                     interfaces.LightClientHeader
+	currentSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+}
+
+var _ interfaces.LightClientBootstrap = &bootstrapDeneb{}
+
+func NewWrappedBootstrapDeneb(p *pb.LightClientBootstrapDeneb) (interfaces.LightClientBootstrap, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	header, err := NewWrappedHeaderDeneb(p.Header)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.CurrentSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &bootstrapDeneb{
+		p:                          p,
+		header:                     header,
+		currentSyncCommitteeBranch: branch,
+	}, nil
+}
+
+func (h *bootstrapDeneb) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *bootstrapDeneb) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *bootstrapDeneb) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *bootstrapDeneb) Version() int {
+	return version.Deneb
+}
+
+func (h *bootstrapDeneb) Header() interfaces.LightClientHeader {
+	return h.header
+}
+
+func (h *bootstrapDeneb) CurrentSyncCommittee() *pb.SyncCommittee {
+	return h.p.CurrentSyncCommittee
+}
+
+func (h *bootstrapDeneb) CurrentSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return h.currentSyncCommitteeBranch
+}

consensus-types/light-client/finality_update.go

@@ -0,0 +1,251 @@
+package light_client
+
+import (
+	"fmt"
+
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	consensustypes "github.com/prysmaticlabs/prysm/v5/consensus-types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"google.golang.org/protobuf/proto"
+)
+
+func NewWrappedFinalityUpdate(m proto.Message) (interfaces.LightClientFinalityUpdate, error) {
+	if m == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	switch t := m.(type) {
+	case *pb.LightClientFinalityUpdateAltair:
+		return NewWrappedFinalityUpdateAltair(t)
+	case *pb.LightClientFinalityUpdateCapella:
+		return NewWrappedFinalityUpdateCapella(t)
+	case *pb.LightClientFinalityUpdateDeneb:
+		return NewWrappedFinalityUpdateDeneb(t)
+	default:
+		return nil, fmt.Errorf("cannot construct light client finality update from type %T", t)
+	}
+}
+
+type finalityUpdateAltair struct {
+	p               *pb.LightClientFinalityUpdateAltair
+	attestedHeader  interfaces.LightClientHeader
+	finalizedHeader interfaces.LightClientHeader
+	finalityBranch  interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientFinalityUpdate = &finalityUpdateAltair{}
+
+func NewWrappedFinalityUpdateAltair(p *pb.LightClientFinalityUpdateAltair) (interfaces.LightClientFinalityUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderAltair(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderAltair(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &finalityUpdateAltair{
+		p:               p,
+		attestedHeader:  attestedHeader,
+		finalizedHeader: finalizedHeader,
+		finalityBranch:  branch,
+	}, nil
+}
+
+func (u *finalityUpdateAltair) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *finalityUpdateAltair) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *finalityUpdateAltair) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *finalityUpdateAltair) Version() int {
+	return version.Altair
+}
+
+func (u *finalityUpdateAltair) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *finalityUpdateAltair) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *finalityUpdateAltair) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *finalityUpdateAltair) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *finalityUpdateAltair) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type finalityUpdateCapella struct {
+	p               *pb.LightClientFinalityUpdateCapella
+	attestedHeader  interfaces.LightClientHeader
+	finalizedHeader interfaces.LightClientHeader
+	finalityBranch  interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientFinalityUpdate = &finalityUpdateCapella{}
+
+func NewWrappedFinalityUpdateCapella(p *pb.LightClientFinalityUpdateCapella) (interfaces.LightClientFinalityUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderCapella(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderCapella(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &finalityUpdateCapella{
+		p:               p,
+		attestedHeader:  attestedHeader,
+		finalizedHeader: finalizedHeader,
+		finalityBranch:  branch,
+	}, nil
+}
+
+func (u *finalityUpdateCapella) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *finalityUpdateCapella) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *finalityUpdateCapella) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *finalityUpdateCapella) Version() int {
+	return version.Capella
+}
+
+func (u *finalityUpdateCapella) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *finalityUpdateCapella) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *finalityUpdateCapella) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *finalityUpdateCapella) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *finalityUpdateCapella) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type finalityUpdateDeneb struct {
+	p               *pb.LightClientFinalityUpdateDeneb
+	attestedHeader  interfaces.LightClientHeader
+	finalizedHeader interfaces.LightClientHeader
+	finalityBranch  interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientFinalityUpdate = &finalityUpdateDeneb{}
+
+func NewWrappedFinalityUpdateDeneb(p *pb.LightClientFinalityUpdateDeneb) (interfaces.LightClientFinalityUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderDeneb(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderDeneb(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	branch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &finalityUpdateDeneb{
+		p:               p,
+		attestedHeader:  attestedHeader,
+		finalizedHeader: finalizedHeader,
+		finalityBranch:  branch,
+	}, nil
+}
+
+func (u *finalityUpdateDeneb) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *finalityUpdateDeneb) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *finalityUpdateDeneb) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *finalityUpdateDeneb) Version() int {
+	return version.Deneb
+}
+
+func (u *finalityUpdateDeneb) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *finalityUpdateDeneb) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *finalityUpdateDeneb) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *finalityUpdateDeneb) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *finalityUpdateDeneb) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}

consensus-types/light-client/header.go

@@ -0,0 +1,192 @@
+package light_client
+
+import (
+	"fmt"
+
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	consensustypes "github.com/prysmaticlabs/prysm/v5/consensus-types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"google.golang.org/protobuf/proto"
+)
+
+func NewWrappedHeader(m proto.Message) (interfaces.LightClientHeader, error) {
+	if m == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	switch t := m.(type) {
+	case *pb.LightClientHeaderAltair:
+		return NewWrappedHeaderAltair(t)
+	case *pb.LightClientHeaderCapella:
+		return NewWrappedHeaderCapella(t)
+	case *pb.LightClientHeaderDeneb:
+		return NewWrappedHeaderDeneb(t)
+	default:
+		return nil, fmt.Errorf("cannot construct light client header from type %T", t)
+	}
+}
+
+type headerAltair struct {
+	p *pb.LightClientHeaderAltair
+}
+
+var _ interfaces.LightClientHeader = &headerAltair{}
+
+func NewWrappedHeaderAltair(p *pb.LightClientHeaderAltair) (interfaces.LightClientHeader, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	return &headerAltair{p: p}, nil
+}
+
+func (h *headerAltair) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *headerAltair) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *headerAltair) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *headerAltair) Version() int {
+	return version.Altair
+}
+
+func (h *headerAltair) Beacon() *pb.BeaconBlockHeader {
+	return h.p.Beacon
+}
+
+func (h *headerAltair) Execution() (interfaces.ExecutionData, error) {
+	return nil, consensustypes.ErrNotSupported("Execution", version.Altair)
+}
+
+func (h *headerAltair) ExecutionBranch() (interfaces.LightClientExecutionBranch, error) {
+	return interfaces.LightClientExecutionBranch{}, consensustypes.ErrNotSupported("ExecutionBranch", version.Altair)
+}
+
+type headerCapella struct {
+	p               *pb.LightClientHeaderCapella
+	execution       interfaces.ExecutionData
+	executionBranch interfaces.LightClientExecutionBranch
+}
+
+var _ interfaces.LightClientHeader = &headerCapella{}
+
+func NewWrappedHeaderCapella(p *pb.LightClientHeaderCapella) (interfaces.LightClientHeader, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	execution, err := blocks.WrappedExecutionPayloadHeaderCapella(p.Execution)
+	if err != nil {
+		return nil, err
+	}
+
+	branch, err := createBranch[interfaces.LightClientExecutionBranch](
+		"execution",
+		p.ExecutionBranch,
+		fieldparams.ExecutionBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &headerCapella{
+		p:               p,
+		execution:       execution,
+		executionBranch: branch,
+	}, nil
+}
+
+func (h *headerCapella) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *headerCapella) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *headerCapella) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *headerCapella) Version() int {
+	return version.Capella
+}
+
+func (h *headerCapella) Beacon() *pb.BeaconBlockHeader {
+	return h.p.Beacon
+}
+
+func (h *headerCapella) Execution() (interfaces.ExecutionData, error) {
+	return h.execution, nil
+}
+
+func (h *headerCapella) ExecutionBranch() (interfaces.LightClientExecutionBranch, error) {
+	return h.executionBranch, nil
+}
+
+type headerDeneb struct {
+	p               *pb.LightClientHeaderDeneb
+	execution       interfaces.ExecutionData
+	executionBranch interfaces.LightClientExecutionBranch
+}
+
+var _ interfaces.LightClientHeader = &headerDeneb{}
+
+func NewWrappedHeaderDeneb(p *pb.LightClientHeaderDeneb) (interfaces.LightClientHeader, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	execution, err := blocks.WrappedExecutionPayloadHeaderDeneb(p.Execution)
+	if err != nil {
+		return nil, err
+	}
+
+	branch, err := createBranch[interfaces.LightClientExecutionBranch](
+		"execution",
+		p.ExecutionBranch,
+		fieldparams.ExecutionBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &headerDeneb{
+		p:               p,
+		execution:       execution,
+		executionBranch: branch,
+	}, nil
+}
+
+func (h *headerDeneb) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return h.p.MarshalSSZTo(dst)
+}
+
+func (h *headerDeneb) MarshalSSZ() ([]byte, error) {
+	return h.p.MarshalSSZ()
+}
+
+func (h *headerDeneb) SizeSSZ() int {
+	return h.p.SizeSSZ()
+}
+
+func (h *headerDeneb) Version() int {
+	return version.Deneb
+}
+
+func (h *headerDeneb) Beacon() *pb.BeaconBlockHeader {
+	return h.p.Beacon
+}
+
+func (h *headerDeneb) Execution() (interfaces.ExecutionData, error) {
+	return h.execution, nil
+}
+
+func (h *headerDeneb) ExecutionBranch() (interfaces.LightClientExecutionBranch, error) {
+	return h.executionBranch, nil
+}

consensus-types/light-client/helpers.go

@@ -0,0 +1,30 @@
+package light_client
+
+import (
+	"fmt"
+
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
+)
+
+type branchConstraint interface {
+	~interfaces.LightClientExecutionBranch | ~interfaces.LightClientSyncCommitteeBranch | ~interfaces.LightClientFinalityBranch
+}
+
+func createBranch[T branchConstraint](name string, input [][]byte, depth int) (T, error) {
+	var zero T
+
+	if len(input) != depth {
+		return zero, fmt.Errorf("%s branch has %d leaves instead of expected %d", name, len(input), depth)
+	}
+	var branch T
+	for i, leaf := range input {
+		if len(leaf) != fieldparams.RootLength {
+			return zero, fmt.Errorf("%s branch leaf at index %d has length %d instead of expected %d", name, i, len(leaf), fieldparams.RootLength)
+		}
+		branch[i] = bytesutil.ToBytes32(leaf)
+	}
+
+	return branch, nil
+}

consensus-types/light-client/optimistic_update.go

@@ -0,0 +1,178 @@
+package light_client
+
+import (
+	"fmt"
+
+	consensustypes "github.com/prysmaticlabs/prysm/v5/consensus-types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"google.golang.org/protobuf/proto"
+)
+
+func NewWrappedOptimisticUpdate(m proto.Message) (interfaces.LightClientOptimisticUpdate, error) {
+	if m == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	switch t := m.(type) {
+	case *pb.LightClientOptimisticUpdateAltair:
+		return NewWrappedOptimisticUpdateAltair(t)
+	case *pb.LightClientOptimisticUpdateCapella:
+		return NewWrappedOptimisticUpdateCapella(t)
+	case *pb.LightClientOptimisticUpdateDeneb:
+		return NewWrappedOptimisticUpdateDeneb(t)
+	default:
+		return nil, fmt.Errorf("cannot construct light client optimistic update from type %T", t)
+	}
+}
+
+type OptimisticUpdateAltair struct {
+	p              *pb.LightClientOptimisticUpdateAltair
+	attestedHeader interfaces.LightClientHeader
+}
+
+var _ interfaces.LightClientOptimisticUpdate = &OptimisticUpdateAltair{}
+
+func NewWrappedOptimisticUpdateAltair(p *pb.LightClientOptimisticUpdateAltair) (interfaces.LightClientOptimisticUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderAltair(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	return &OptimisticUpdateAltair{
+		p:              p,
+		attestedHeader: attestedHeader,
+	}, nil
+}
+
+func (u *OptimisticUpdateAltair) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *OptimisticUpdateAltair) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *OptimisticUpdateAltair) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *OptimisticUpdateAltair) Version() int {
+	return version.Altair
+}
+
+func (u *OptimisticUpdateAltair) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *OptimisticUpdateAltair) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *OptimisticUpdateAltair) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type OptimisticUpdateCapella struct {
+	p              *pb.LightClientOptimisticUpdateCapella
+	attestedHeader interfaces.LightClientHeader
+}
+
+var _ interfaces.LightClientOptimisticUpdate = &OptimisticUpdateCapella{}
+
+func NewWrappedOptimisticUpdateCapella(p *pb.LightClientOptimisticUpdateCapella) (interfaces.LightClientOptimisticUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderCapella(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	return &OptimisticUpdateCapella{
+		p:              p,
+		attestedHeader: attestedHeader,
+	}, nil
+}
+
+func (u *OptimisticUpdateCapella) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *OptimisticUpdateCapella) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *OptimisticUpdateCapella) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *OptimisticUpdateCapella) Version() int {
+	return version.Capella
+}
+
+func (u *OptimisticUpdateCapella) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *OptimisticUpdateCapella) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *OptimisticUpdateCapella) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type OptimisticUpdateDeneb struct {
+	p              *pb.LightClientOptimisticUpdateDeneb
+	attestedHeader interfaces.LightClientHeader
+}
+
+var _ interfaces.LightClientOptimisticUpdate = &OptimisticUpdateDeneb{}
+
+func NewWrappedOptimisticUpdateDeneb(p *pb.LightClientOptimisticUpdateDeneb) (interfaces.LightClientOptimisticUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderDeneb(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	return &OptimisticUpdateDeneb{
+		p:              p,
+		attestedHeader: attestedHeader,
+	}, nil
+}
+
+func (u *OptimisticUpdateDeneb) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *OptimisticUpdateDeneb) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *OptimisticUpdateDeneb) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *OptimisticUpdateDeneb) Version() int {
+	return version.Deneb
+}
+
+func (u *OptimisticUpdateDeneb) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *OptimisticUpdateDeneb) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *OptimisticUpdateDeneb) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}

consensus-types/light-client/update.go

@@ -0,0 +1,305 @@
+package light_client
+
+import (
+	"fmt"
+
+	fieldparams "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	consensustypes "github.com/prysmaticlabs/prysm/v5/consensus-types"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
+	"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives"
+	pb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v5/runtime/version"
+	"google.golang.org/protobuf/proto"
+)
+
+func NewWrappedUpdate(m proto.Message) (interfaces.LightClientUpdate, error) {
+	if m == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	switch t := m.(type) {
+	case *pb.LightClientUpdateAltair:
+		return NewWrappedUpdateAltair(t)
+	case *pb.LightClientUpdateCapella:
+		return NewWrappedUpdateCapella(t)
+	case *pb.LightClientUpdateDeneb:
+		return NewWrappedUpdateDeneb(t)
+	default:
+		return nil, fmt.Errorf("cannot construct light client update from type %T", t)
+	}
+}
+
+type updateAltair struct {
+	p                       *pb.LightClientUpdateAltair
+	attestedHeader          interfaces.LightClientHeader
+	nextSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+	finalizedHeader         interfaces.LightClientHeader
+	finalityBranch          interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientUpdate = &updateAltair{}
+
+func NewWrappedUpdateAltair(p *pb.LightClientUpdateAltair) (interfaces.LightClientUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderAltair(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderAltair(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	scBranch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.NextSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+	finalityBranch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &updateAltair{
+		p:                       p,
+		attestedHeader:          attestedHeader,
+		nextSyncCommitteeBranch: scBranch,
+		finalizedHeader:         finalizedHeader,
+		finalityBranch:          finalityBranch,
+	}, nil
+}
+
+func (u *updateAltair) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *updateAltair) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *updateAltair) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *updateAltair) Version() int {
+	return version.Altair
+}
+
+func (u *updateAltair) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *updateAltair) NextSyncCommittee() *pb.SyncCommittee {
+	return u.p.NextSyncCommittee
+}
+
+func (u *updateAltair) NextSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return u.nextSyncCommitteeBranch
+}
+
+func (u *updateAltair) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *updateAltair) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *updateAltair) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *updateAltair) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type updateCapella struct {
+	p                       *pb.LightClientUpdateCapella
+	attestedHeader          interfaces.LightClientHeader
+	nextSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+	finalizedHeader         interfaces.LightClientHeader
+	finalityBranch          interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientUpdate = &updateCapella{}
+
+func NewWrappedUpdateCapella(p *pb.LightClientUpdateCapella) (interfaces.LightClientUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderCapella(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderCapella(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	scBranch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.NextSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+	finalityBranch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &updateCapella{
+		p:                       p,
+		attestedHeader:          attestedHeader,
+		nextSyncCommitteeBranch: scBranch,
+		finalizedHeader:         finalizedHeader,
+		finalityBranch:          finalityBranch,
+	}, nil
+}
+
+func (u *updateCapella) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *updateCapella) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *updateCapella) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *updateCapella) Version() int {
+	return version.Capella
+}
+
+func (u *updateCapella) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *updateCapella) NextSyncCommittee() *pb.SyncCommittee {
+	return u.p.NextSyncCommittee
+}
+
+func (u *updateCapella) NextSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return u.nextSyncCommitteeBranch
+}
+
+func (u *updateCapella) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *updateCapella) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *updateCapella) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *updateCapella) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}
+
+type updateDeneb struct {
+	p                       *pb.LightClientUpdateDeneb
+	attestedHeader          interfaces.LightClientHeader
+	nextSyncCommitteeBranch interfaces.LightClientSyncCommitteeBranch
+	finalizedHeader         interfaces.LightClientHeader
+	finalityBranch          interfaces.LightClientFinalityBranch
+}
+
+var _ interfaces.LightClientUpdate = &updateDeneb{}
+
+func NewWrappedUpdateDeneb(p *pb.LightClientUpdateDeneb) (interfaces.LightClientUpdate, error) {
+	if p == nil {
+		return nil, consensustypes.ErrNilObjectWrapped
+	}
+	attestedHeader, err := NewWrappedHeaderDeneb(p.AttestedHeader)
+	if err != nil {
+		return nil, err
+	}
+	finalizedHeader, err := NewWrappedHeaderDeneb(p.FinalizedHeader)
+	if err != nil {
+		return nil, err
+	}
+	scBranch, err := createBranch[interfaces.LightClientSyncCommitteeBranch](
+		"sync committee",
+		p.NextSyncCommitteeBranch,
+		fieldparams.SyncCommitteeBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+	finalityBranch, err := createBranch[interfaces.LightClientFinalityBranch](
+		"finality",
+		p.FinalityBranch,
+		fieldparams.FinalityBranchDepth,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &updateDeneb{
+		p:                       p,
+		attestedHeader:          attestedHeader,
+		nextSyncCommitteeBranch: scBranch,
+		finalizedHeader:         finalizedHeader,
+		finalityBranch:          finalityBranch,
+	}, nil
+}
+
+func (u *updateDeneb) MarshalSSZTo(dst []byte) ([]byte, error) {
+	return u.p.MarshalSSZTo(dst)
+}
+
+func (u *updateDeneb) MarshalSSZ() ([]byte, error) {
+	return u.p.MarshalSSZ()
+}
+
+func (u *updateDeneb) SizeSSZ() int {
+	return u.p.SizeSSZ()
+}
+
+func (u *updateDeneb) Version() int {
+	return version.Deneb
+}
+
+func (u *updateDeneb) AttestedHeader() interfaces.LightClientHeader {
+	return u.attestedHeader
+}
+
+func (u *updateDeneb) NextSyncCommittee() *pb.SyncCommittee {
+	return u.p.NextSyncCommittee
+}
+
+func (u *updateDeneb) NextSyncCommitteeBranch() interfaces.LightClientSyncCommitteeBranch {
+	return u.nextSyncCommitteeBranch
+}
+
+func (u *updateDeneb) FinalizedHeader() interfaces.LightClientHeader {
+	return u.finalizedHeader
+}
+
+func (u *updateDeneb) FinalityBranch() interfaces.LightClientFinalityBranch {
+	return u.finalityBranch
+}
+
+func (u *updateDeneb) SyncAggregate() *pb.SyncAggregate {
+	return u.p.SyncAggregate
+}
+
+func (u *updateDeneb) SignatureSlot() primitives.Slot {
+	return u.p.SignatureSlot
+}

deps.bzl

@@ -2781,8 +2781,8 @@ def prysm_deps():
     go_repository(
         name = "com_github_prysmaticlabs_fastssz",
         importpath = "github.com/prysmaticlabs/fastssz",
-        sum = "h1:0LZAwwHnsZFfXm4IK4rzFV4N5IVSKZKLmuBMA4kAlFk=",
-        version = "v0.0.0-20240620202422-a981b8ef89d3",
+        sum = "h1:xuVAdtz5ShYblG2sPyb4gw01DF8InbOI/kBCQjk7NiM=",
+        version = "v0.0.0-20241008181541-518c4ce73516",
     )
     go_repository(
         name = "com_github_prysmaticlabs_go_bitfield",

encoding/ssz/detect/configfork.go

@@ -101,72 +101,15 @@ func FromForkVersion(cv [fieldparams.VersionLength]byte) (*VersionedUnmarshaler,
 // UnmarshalBeaconState uses internal knowledge in the VersionedUnmarshaler to pick the right concrete BeaconState type,
 // then Unmarshal()s the type and returns an instance of state.BeaconState if successful.
 func (cf *VersionedUnmarshaler) UnmarshalBeaconState(marshaled []byte) (s state.BeaconState, err error) {
-	forkName := version.String(cf.Fork)
-	switch fork := cf.Fork; fork {
-	case version.Phase0:
-		st := &ethpb.BeaconState{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafePhase0(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	case version.Altair:
-		st := &ethpb.BeaconStateAltair{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafeAltair(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	case version.Bellatrix:
-		st := &ethpb.BeaconStateBellatrix{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafeBellatrix(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	case version.Capella:
-		st := &ethpb.BeaconStateCapella{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafeCapella(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	case version.Deneb:
-		st := &ethpb.BeaconStateDeneb{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafeDeneb(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	case version.Electra:
-		st := &ethpb.BeaconStateElectra{}
-		err = st.UnmarshalSSZ(marshaled)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", forkName)
-		}
-		s, err = state_native.InitializeFromProtoUnsafeElectra(st)
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", forkName)
-		}
-	default:
-		return nil, fmt.Errorf("unable to initialize BeaconState for fork version=%s", forkName)
+	st := &ethpb.BeaconStateElectra{}
+	err = st.UnmarshalSSZ(marshaled)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to unmarshal state, detected fork=%s", "makong")
+	}
+	s, err = state_native.InitializeFromProtoUnsafeElectra(st)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to init state trie from state, detected fork=%s", "makong")
 	}
-
 	return s, nil
 }
 
@@ -199,24 +142,7 @@ func (cf *VersionedUnmarshaler) UnmarshalBeaconBlock(marshaled []byte) (interfac
 		return nil, err
 	}
 
-	var blk ssz.Unmarshaler
-	switch cf.Fork {
-	case version.Phase0:
-		blk = &ethpb.SignedBeaconBlock{}
-	case version.Altair:
-		blk = &ethpb.SignedBeaconBlockAltair{}
-	case version.Bellatrix:
-		blk = &ethpb.SignedBeaconBlockBellatrix{}
-	case version.Capella:
-		blk = &ethpb.SignedBeaconBlockCapella{}
-	case version.Deneb:
-		blk = &ethpb.SignedBeaconBlockDeneb{}
-	case version.Electra:
-		blk = &ethpb.SignedBeaconBlockElectra{}
-	default:
-		forkName := version.String(cf.Fork)
-		return nil, fmt.Errorf("unable to initialize ReadOnlyBeaconBlock for fork version=%s at slot=%d", forkName, slot)
-	}
+	blk := &ethpb.SignedBeaconBlockElectra{}
 	err = blk.UnmarshalSSZ(marshaled)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to unmarshal ReadOnlySignedBeaconBlock in UnmarshalSSZ")

go.mod

@@ -62,7 +62,7 @@ require (
 	github.com/prometheus/client_golang v1.20.0
 	github.com/prometheus/client_model v0.6.1
 	github.com/prometheus/prom2json v1.3.0
-	github.com/prysmaticlabs/fastssz v0.0.0-20240620202422-a981b8ef89d3
+	github.com/prysmaticlabs/fastssz v0.0.0-20241008181541-518c4ce73516
 	github.com/prysmaticlabs/go-bitfield v0.0.0-20240328144219-a1caa50c3a1e
 	github.com/prysmaticlabs/prombbolt v0.0.0-20210126082820-9b7adba6db7c
 	github.com/prysmaticlabs/protoc-gen-go-cast v0.0.0-20230228205207-28762a7b9294

go.sum

@@ -897,8 +897,8 @@ github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0leargg
 github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
 github.com/prometheus/prom2json v1.3.0 h1:BlqrtbT9lLH3ZsOVhXPsHzFrApCTKRifB7gjJuypu6Y=
 github.com/prometheus/prom2json v1.3.0/go.mod h1:rMN7m0ApCowcoDlypBHlkNbp5eJQf/+1isKykIP5ZnM=
-github.com/prysmaticlabs/fastssz v0.0.0-20240620202422-a981b8ef89d3 h1:0LZAwwHnsZFfXm4IK4rzFV4N5IVSKZKLmuBMA4kAlFk=
-github.com/prysmaticlabs/fastssz v0.0.0-20240620202422-a981b8ef89d3/go.mod h1:h2OlIZD/M6wFvV3YMZbW16lFgh3Rsye00G44J2cwLyU=
+github.com/prysmaticlabs/fastssz v0.0.0-20241008181541-518c4ce73516 h1:xuVAdtz5ShYblG2sPyb4gw01DF8InbOI/kBCQjk7NiM=
+github.com/prysmaticlabs/fastssz v0.0.0-20241008181541-518c4ce73516/go.mod h1:h2OlIZD/M6wFvV3YMZbW16lFgh3Rsye00G44J2cwLyU=
 github.com/prysmaticlabs/go-bitfield v0.0.0-20210108222456-8e92c3709aa0/go.mod h1:hCwmef+4qXWjv0jLDbQdWnL0Ol7cS7/lCSS26WR+u6s=
 github.com/prysmaticlabs/go-bitfield v0.0.0-20240328144219-a1caa50c3a1e h1:ATgOe+abbzfx9kCPeXIW4fiWyDdxlwHw07j8UGhdTd4=
 github.com/prysmaticlabs/go-bitfield v0.0.0-20240328144219-a1caa50c3a1e/go.mod h1:wmuf/mdK4VMD+jA9ThwcUKjg3a2XWM9cVfFYjDyY4j4=

proto/eth/v1/gateway.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 13c946aa898cca1afa84687b619bc5a10fc79a46340e98dcfb07dde835d39a0c
+// Hash: 2874e1dadeb47411763f48fe31e5daaa91ac663e796933d9a508c2e7be94fa5e
 package v1
 
 import (
@@ -2395,7 +2395,10 @@ func (v *Validator) UnmarshalSSZ(buf []byte) error {
 	v.EffectiveBalance = ssz.UnmarshallUint64(buf[80:88])
 
 	// Field (3) 'Slashed'
-	v.Slashed = ssz.UnmarshalBool(buf[88:89])
+	v.Slashed, err = ssz.DecodeBool(buf[88:89])
+	if err != nil {
+		return err
+	}
 
 	// Field (4) 'ActivationEligibilityEpoch'
 	v.ActivationEligibilityEpoch = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch(ssz.UnmarshallUint64(buf[89:97]))

proto/eth/v2/grpc.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: bc8a0f7f6c8dadac6bcb0eaab2dea4888cc44c5b3f4fe9998a71e15f1a059399
+// Hash: 298a6e797d2a244a4eee0e60b198b11fd30b4b8596a8a5b911dd2e14fafebdad
 package eth
 
 import (

proto/prysm/v1alpha1/BUILD.bazel

@@ -81,6 +81,11 @@ ssz_altair_objs = [
     "BeaconBlockBodyAltair",
     "BeaconStateAltair",
     "ContributionAndProof",
+    "LightClientBootstrapAltair",
+    "LightClientFinalityUpdateAltair",
+    "LightClientHeaderAltair",
+    "LightClientOptimisticUpdateAltair",
+    "LightClientUpdateAltair",
     "SignedBeaconBlockAltair",
     "SignedContributionAndProof",
     "SyncAggregate",
@@ -110,6 +115,11 @@ ssz_capella_objs = [
     "BlindedBeaconBlockCapella",
     "BuilderBidCapella",
     "HistoricalSummary",
+    "LightClientBootstrapCapella",
+    "LightClientFinalityUpdateCapella",
+    "LightClientHeaderCapella",
+    "LightClientOptimisticUpdateCapella",
+    "LightClientUpdateCapella",
     "SignedBLSToExecutionChange",
     "SignedBeaconBlockCapella",
     "SignedBlindedBeaconBlockCapella",
@@ -127,6 +137,11 @@ ssz_deneb_objs = [
     "BlobSidecar",
     "BlobSidecars",
     "BuilderBidDeneb",
+    "LightClientBootstrapDeneb",
+    "LightClientFinalityUpdateDeneb",
+    "LightClientHeaderDeneb",
+    "LightClientOptimisticUpdateDeneb",
+    "LightClientUpdateDeneb",
     "SignedBeaconBlockContentsDeneb",
     "SignedBeaconBlockDeneb",
     "SignedBlindedBeaconBlockDeneb",
@@ -144,8 +159,8 @@ ssz_electra_objs = [
     "BlindedBeaconBlockElectra",
     "Consolidation",
     "IndexedAttestationElectra",
-    "PendingDeposit",
-    "PendingDeposits",
+    "PendingBalanceDeposit",
+    "PendingBalanceDeposits",
     "PendingConsolidation",
     "PendingPartialWithdrawal",
     "SignedAggregateAttestationAndProofElectra",
@@ -334,6 +349,7 @@ ssz_proto_files(
         "beacon_block.proto",
         "beacon_state.proto",
         "blobs.proto",
+        "light_client.proto",
         "sync_committee.proto",
         "withdrawals.proto",
     ],

proto/prysm/v1alpha1/altair.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: bb838fc0c2dfdadd4a8274dd1b438b1051f7b84d7c8e7470900621284dba8f43
+// Hash: 18a07a11eb3d1daaafe0b6b1ac8934e9333ea6eceed7d5ef30166b9c2fb50d39
 package eth
 
 import (
@@ -1747,6 +1747,651 @@ func (s *SyncAggregatorSelectionData) HashTreeRootWith(hh *ssz.Hasher) (err erro
 	return
 }
 
+// MarshalSSZ ssz marshals the LightClientHeaderAltair object
+func (l *LightClientHeaderAltair) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientHeaderAltair object to a target array
+func (l *LightClientHeaderAltair) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if dst, err = l.Beacon.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientHeaderAltair object
+func (l *LightClientHeaderAltair) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size != 112 {
+		return ssz.ErrSize
+	}
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if err = l.Beacon.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientHeaderAltair object
+func (l *LightClientHeaderAltair) SizeSSZ() (size int) {
+	size = 112
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientHeaderAltair object
+func (l *LightClientHeaderAltair) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientHeaderAltair object with a hasher
+func (l *LightClientHeaderAltair) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Beacon'
+	if err = l.Beacon.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientBootstrapAltair object
+func (l *LightClientBootstrapAltair) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientBootstrapAltair object to a target array
+func (l *LightClientBootstrapAltair) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+
+	// Field (0) 'Header'
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.Header.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.CurrentSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.CurrentSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.CurrentSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.CurrentSyncCommitteeBranch[ii]...)
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientBootstrapAltair object
+func (l *LightClientBootstrapAltair) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size != 24896 {
+		return ssz.ErrSize
+	}
+
+	// Field (0) 'Header'
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderAltair)
+	}
+	if err = l.Header.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.CurrentSyncCommittee.UnmarshalSSZ(buf[112:24736]); err != nil {
+		return err
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	l.CurrentSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.CurrentSyncCommitteeBranch[ii]) == 0 {
+			l.CurrentSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24736:24896][ii*32:(ii+1)*32]))
+		}
+		l.CurrentSyncCommitteeBranch[ii] = append(l.CurrentSyncCommitteeBranch[ii], buf[24736:24896][ii*32:(ii+1)*32]...)
+	}
+
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientBootstrapAltair object
+func (l *LightClientBootstrapAltair) SizeSSZ() (size int) {
+	size = 24896
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientBootstrapAltair object
+func (l *LightClientBootstrapAltair) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientBootstrapAltair object with a hasher
+func (l *LightClientBootstrapAltair) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Header'
+	if err = l.Header.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if err = l.CurrentSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	{
+		if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.CurrentSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientUpdateAltair object
+func (l *LightClientUpdateAltair) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientUpdateAltair object to a target array
+func (l *LightClientUpdateAltair) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.NextSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	if size := len(l.NextSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.NextSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.NextSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.NextSyncCommitteeBranch[ii]...)
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (4) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientUpdateAltair object
+func (l *LightClientUpdateAltair) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size != 25368 {
+		return ssz.ErrSize
+	}
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if err = l.AttestedHeader.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.NextSyncCommittee.UnmarshalSSZ(buf[112:24736]); err != nil {
+		return err
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	l.NextSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.NextSyncCommitteeBranch[ii]) == 0 {
+			l.NextSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24736:24896][ii*32:(ii+1)*32]))
+		}
+		l.NextSyncCommitteeBranch[ii] = append(l.NextSyncCommitteeBranch[ii], buf[24736:24896][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderAltair)
+	}
+	if err = l.FinalizedHeader.UnmarshalSSZ(buf[24896:25008]); err != nil {
+		return err
+	}
+
+	// Field (4) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[25008:25200][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[25008:25200][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[25200:25360]); err != nil {
+		return err
+	}
+
+	// Field (6) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[25360:25368]))
+
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientUpdateAltair object
+func (l *LightClientUpdateAltair) SizeSSZ() (size int) {
+	size = 25368
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientUpdateAltair object
+func (l *LightClientUpdateAltair) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientUpdateAltair object with a hasher
+func (l *LightClientUpdateAltair) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if err = l.NextSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	{
+		if size := len(l.NextSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.NextSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientFinalityUpdateAltair object
+func (l *LightClientFinalityUpdateAltair) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientFinalityUpdateAltair object to a target array
+func (l *LightClientFinalityUpdateAltair) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientFinalityUpdateAltair object
+func (l *LightClientFinalityUpdateAltair) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size != 584 {
+		return ssz.ErrSize
+	}
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if err = l.AttestedHeader.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderAltair)
+	}
+	if err = l.FinalizedHeader.UnmarshalSSZ(buf[112:224]); err != nil {
+		return err
+	}
+
+	// Field (2) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[224:416][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[224:416][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[416:576]); err != nil {
+		return err
+	}
+
+	// Field (4) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[576:584]))
+
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientFinalityUpdateAltair object
+func (l *LightClientFinalityUpdateAltair) SizeSSZ() (size int) {
+	size = 584
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientFinalityUpdateAltair object
+func (l *LightClientFinalityUpdateAltair) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientFinalityUpdateAltair object with a hasher
+func (l *LightClientFinalityUpdateAltair) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientOptimisticUpdateAltair object
+func (l *LightClientOptimisticUpdateAltair) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientOptimisticUpdateAltair object to a target array
+func (l *LightClientOptimisticUpdateAltair) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientOptimisticUpdateAltair object
+func (l *LightClientOptimisticUpdateAltair) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size != 280 {
+		return ssz.ErrSize
+	}
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderAltair)
+	}
+	if err = l.AttestedHeader.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[112:272]); err != nil {
+		return err
+	}
+
+	// Field (2) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[272:280]))
+
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientOptimisticUpdateAltair object
+func (l *LightClientOptimisticUpdateAltair) SizeSSZ() (size int) {
+	size = 280
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientOptimisticUpdateAltair object
+func (l *LightClientOptimisticUpdateAltair) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientOptimisticUpdateAltair object with a hasher
+func (l *LightClientOptimisticUpdateAltair) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
 // MarshalSSZ ssz marshals the SyncCommitteeMessage object
 func (s *SyncCommitteeMessage) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(s)

proto/prysm/v1alpha1/beacon_block.go

@@ -625,3 +625,14 @@ func (summary *HistoricalSummary) Copy() *HistoricalSummary {
 		StateSummaryRoot: bytesutil.SafeCopyBytes(summary.StateSummaryRoot),
 	}
 }
+
+// Copy --
+func (pbd *PendingBalanceDeposit) Copy() *PendingBalanceDeposit {
+	if pbd == nil {
+		return nil
+	}
+	return &PendingBalanceDeposit{
+		Index:  pbd.Index,
+		Amount: pbd.Amount,
+	}
+}

proto/prysm/v1alpha1/beacon_block_fuzz_test.go

@@ -62,5 +62,5 @@ func TestCopyBeaconBlockFields_Fuzz(t *testing.T) {
 	fuzzCopies(t, &eth.SignedBLSToExecutionChange{})
 	fuzzCopies(t, &eth.BLSToExecutionChange{})
 	fuzzCopies(t, &eth.HistoricalSummary{})
-	fuzzCopies(t, &eth.PendingDeposit{})
+	fuzzCopies(t, &eth.PendingBalanceDeposit{})
 }

proto/prysm/v1alpha1/beacon_state.pb.go

@@ -1873,7 +1873,7 @@ type BeaconStateElectra struct {
 	EarliestExitEpoch             github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch          `protobuf:"varint,12004,opt,name=earliest_exit_epoch,json=earliestExitEpoch,proto3" json:"earliest_exit_epoch,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Epoch"`
 	ConsolidationBalanceToConsume github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Gwei           `protobuf:"varint,12005,opt,name=consolidation_balance_to_consume,json=consolidationBalanceToConsume,proto3" json:"consolidation_balance_to_consume,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Gwei"`
 	EarliestConsolidationEpoch    github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch          `protobuf:"varint,12006,opt,name=earliest_consolidation_epoch,json=earliestConsolidationEpoch,proto3" json:"earliest_consolidation_epoch,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Epoch"`
-	PendingDeposits               []*PendingDeposit                                                           `protobuf:"bytes,12007,rep,name=pending_deposits,json=pendingDeposits,proto3" json:"pending_deposits,omitempty" ssz-max:"134217728"`
+	PendingBalanceDeposits        []*PendingBalanceDeposit                                                    `protobuf:"bytes,12007,rep,name=pending_balance_deposits,json=pendingBalanceDeposits,proto3" json:"pending_balance_deposits,omitempty" ssz-max:"134217728"`
 	PendingPartialWithdrawals     []*PendingPartialWithdrawal                                                 `protobuf:"bytes,12008,rep,name=pending_partial_withdrawals,json=pendingPartialWithdrawals,proto3" json:"pending_partial_withdrawals,omitempty" ssz-max:"134217728"`
 	PendingConsolidations         []*PendingConsolidation                                                     `protobuf:"bytes,12009,rep,name=pending_consolidations,json=pendingConsolidations,proto3" json:"pending_consolidations,omitempty" ssz-max:"262144"`
 }
@@ -2148,9 +2148,9 @@ func (x *BeaconStateElectra) GetEarliestConsolidationEpoch() github_com_prysmati
 	return github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch(0)
 }
 
-func (x *BeaconStateElectra) GetPendingDeposits() []*PendingDeposit {
+func (x *BeaconStateElectra) GetPendingBalanceDeposits() []*PendingBalanceDeposit {
 	if x != nil {
-		return x.PendingDeposits
+		return x.PendingBalanceDeposits
 	}
 	return nil
 }
@@ -3010,7 +3010,7 @@ var file_proto_prysm_v1alpha1_beacon_state_proto_rawDesc = []byte{
 	0x48, 0x69, 0x73, 0x74, 0x6f, 0x72, 0x69, 0x63, 0x61, 0x6c, 0x53, 0x75, 0x6d, 0x6d, 0x61, 0x72,
 	0x79, 0x42, 0x0c, 0x92, 0xb5, 0x18, 0x08, 0x31, 0x36, 0x37, 0x37, 0x37, 0x32, 0x31, 0x36, 0x52,
 	0x13, 0x68, 0x69, 0x73, 0x74, 0x6f, 0x72, 0x69, 0x63, 0x61, 0x6c, 0x53, 0x75, 0x6d, 0x6d, 0x61,
-	0x72, 0x69, 0x65, 0x73, 0x22, 0xb9, 0x19, 0x0a, 0x12, 0x42, 0x65, 0x61, 0x63, 0x6f, 0x6e, 0x53,
+	0x72, 0x69, 0x65, 0x73, 0x22, 0xcf, 0x19, 0x0a, 0x12, 0x42, 0x65, 0x61, 0x63, 0x6f, 0x6e, 0x53,
 	0x74, 0x61, 0x74, 0x65, 0x45, 0x6c, 0x65, 0x63, 0x74, 0x72, 0x61, 0x12, 0x22, 0x0a, 0x0c, 0x67,
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@@ -3192,56 +3192,57 @@ var file_proto_prysm_v1alpha1_beacon_state_proto_rawDesc = []byte{
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+	0xb5, 0x18, 0x02, 0x33, 0x32, 0x52, 0x10, 0x73, 0x74, 0x61, 0x74, 0x65, 0x53, 0x75, 0x6d, 0x6d,
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+	0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x61,
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+	0x61, 0x62, 0x73, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d, 0x2f, 0x76, 0x35, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61,
+	0x31, 0x3b, 0x65, 0x74, 0x68, 0xaa, 0x02, 0x15, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d,
+	0x2e, 0x45, 0x74, 0x68, 0x2e, 0x56, 0x31, 0x41, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xca, 0x02, 0x15,
+	0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x5c, 0x45, 0x74, 0x68, 0x5c, 0x76, 0x31, 0x61,
+	0x6c, 0x70, 0x68, 0x61, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -3284,7 +3285,7 @@ var file_proto_prysm_v1alpha1_beacon_state_proto_goTypes = []interface{}{
 	(*v1.ExecutionPayloadHeader)(nil),        // 23: ethereum.engine.v1.ExecutionPayloadHeader
 	(*v1.ExecutionPayloadHeaderCapella)(nil), // 24: ethereum.engine.v1.ExecutionPayloadHeaderCapella
 	(*v1.ExecutionPayloadHeaderDeneb)(nil),   // 25: ethereum.engine.v1.ExecutionPayloadHeaderDeneb
-	(*PendingDeposit)(nil),                   // 26: ethereum.eth.v1alpha1.PendingDeposit
+	(*PendingBalanceDeposit)(nil),            // 26: ethereum.eth.v1alpha1.PendingBalanceDeposit
 	(*PendingPartialWithdrawal)(nil),         // 27: ethereum.eth.v1alpha1.PendingPartialWithdrawal
 	(*PendingConsolidation)(nil),             // 28: ethereum.eth.v1alpha1.PendingConsolidation
 }
@@ -3358,7 +3359,7 @@ var file_proto_prysm_v1alpha1_beacon_state_proto_depIdxs = []int32{
 	10, // 66: ethereum.eth.v1alpha1.BeaconStateElectra.next_sync_committee:type_name -> ethereum.eth.v1alpha1.SyncCommittee
 	25, // 67: ethereum.eth.v1alpha1.BeaconStateElectra.latest_execution_payload_header:type_name -> ethereum.engine.v1.ExecutionPayloadHeaderDeneb
 	17, // 68: ethereum.eth.v1alpha1.BeaconStateElectra.historical_summaries:type_name -> ethereum.eth.v1alpha1.HistoricalSummary
-	26, // 69: ethereum.eth.v1alpha1.BeaconStateElectra.pending_deposits:type_name -> ethereum.eth.v1alpha1.PendingDeposit
+	26, // 69: ethereum.eth.v1alpha1.BeaconStateElectra.pending_balance_deposits:type_name -> ethereum.eth.v1alpha1.PendingBalanceDeposit
 	27, // 70: ethereum.eth.v1alpha1.BeaconStateElectra.pending_partial_withdrawals:type_name -> ethereum.eth.v1alpha1.PendingPartialWithdrawal
 	28, // 71: ethereum.eth.v1alpha1.BeaconStateElectra.pending_consolidations:type_name -> ethereum.eth.v1alpha1.PendingConsolidation
 	72, // [72:72] is the sub-list for method output_type

proto/prysm/v1alpha1/beacon_state.proto

@@ -402,7 +402,7 @@ message BeaconStateElectra {
   uint64 earliest_exit_epoch = 12004 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Epoch"];
   uint64 consolidation_balance_to_consume = 12005 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Gwei"];
   uint64 earliest_consolidation_epoch = 12006 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Epoch"];
-  repeated PendingDeposit pending_deposits = 12007 [(ethereum.eth.ext.ssz_max) = "pending_deposits_limit"];
+  repeated PendingBalanceDeposit pending_balance_deposits = 12007 [(ethereum.eth.ext.ssz_max) = "pending_balance_deposits_limit"];
   repeated PendingPartialWithdrawal pending_partial_withdrawals = 12008 [(ethereum.eth.ext.ssz_max) = "pending_partial_withdrawals_limit"];
   repeated PendingConsolidation pending_consolidations = 12009 [(ethereum.eth.ext.ssz_max) = "pending_consolidations_limit"];
 }

proto/prysm/v1alpha1/bellatrix.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 693cad07de8560b2681132d912aebb927e668fe15e5cb9f42e8a36bbac6e2c5e
+// Hash: c6614861443f105e2d5445ca29187cc78c2a929161d0a15b36ce2f0e6517a0ea
 package eth
 
 import (

proto/prysm/v1alpha1/capella.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: a5507ef7d71897486989f37eb4dbb19fc2c49e7c47f244291a9f3122c9bfe546
+// Hash: 6bee0cf7c5707af68be518a221b248ce37edd4b0b1e6fec9703c6152a5107a1d
 package eth
 
 import (
@@ -2729,6 +2729,877 @@ func (h *HistoricalSummary) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	return
 }
 
+// MarshalSSZ ssz marshals the LightClientHeaderCapella object
+func (l *LightClientHeaderCapella) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientHeaderCapella object to a target array
+func (l *LightClientHeaderCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(244)
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if dst, err = l.Beacon.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Offset (1) 'Execution'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.Execution == nil {
+		l.Execution = new(v1.ExecutionPayloadHeaderCapella)
+	}
+	offset += l.Execution.SizeSSZ()
+
+	// Field (2) 'ExecutionBranch'
+	if size := len(l.ExecutionBranch); size != 4 {
+		err = ssz.ErrVectorLengthFn("--.ExecutionBranch", size, 4)
+		return
+	}
+	for ii := 0; ii < 4; ii++ {
+		if size := len(l.ExecutionBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.ExecutionBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.ExecutionBranch[ii]...)
+	}
+
+	// Field (1) 'Execution'
+	if dst, err = l.Execution.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientHeaderCapella object
+func (l *LightClientHeaderCapella) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 244 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o1 uint64
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if err = l.Beacon.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Offset (1) 'Execution'
+	if o1 = ssz.ReadOffset(buf[112:116]); o1 > size {
+		return ssz.ErrOffset
+	}
+
+	if o1 != 244 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (2) 'ExecutionBranch'
+	l.ExecutionBranch = make([][]byte, 4)
+	for ii := 0; ii < 4; ii++ {
+		if cap(l.ExecutionBranch[ii]) == 0 {
+			l.ExecutionBranch[ii] = make([]byte, 0, len(buf[116:244][ii*32:(ii+1)*32]))
+		}
+		l.ExecutionBranch[ii] = append(l.ExecutionBranch[ii], buf[116:244][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (1) 'Execution'
+	{
+		buf = tail[o1:]
+		if l.Execution == nil {
+			l.Execution = new(v1.ExecutionPayloadHeaderCapella)
+		}
+		if err = l.Execution.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientHeaderCapella object
+func (l *LightClientHeaderCapella) SizeSSZ() (size int) {
+	size = 244
+
+	// Field (1) 'Execution'
+	if l.Execution == nil {
+		l.Execution = new(v1.ExecutionPayloadHeaderCapella)
+	}
+	size += l.Execution.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientHeaderCapella object
+func (l *LightClientHeaderCapella) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientHeaderCapella object with a hasher
+func (l *LightClientHeaderCapella) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Beacon'
+	if err = l.Beacon.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'Execution'
+	if err = l.Execution.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'ExecutionBranch'
+	{
+		if size := len(l.ExecutionBranch); size != 4 {
+			err = ssz.ErrVectorLengthFn("--.ExecutionBranch", size, 4)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.ExecutionBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientBootstrapCapella object
+func (l *LightClientBootstrapCapella) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientBootstrapCapella object to a target array
+func (l *LightClientBootstrapCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(24788)
+
+	// Offset (0) 'Header'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderCapella)
+	}
+	offset += l.Header.SizeSSZ()
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.CurrentSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.CurrentSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.CurrentSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.CurrentSyncCommitteeBranch[ii]...)
+	}
+
+	// Field (0) 'Header'
+	if dst, err = l.Header.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientBootstrapCapella object
+func (l *LightClientBootstrapCapella) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 24788 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0 uint64
+
+	// Offset (0) 'Header'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 24788 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.CurrentSyncCommittee.UnmarshalSSZ(buf[4:24628]); err != nil {
+		return err
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	l.CurrentSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.CurrentSyncCommitteeBranch[ii]) == 0 {
+			l.CurrentSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24628:24788][ii*32:(ii+1)*32]))
+		}
+		l.CurrentSyncCommitteeBranch[ii] = append(l.CurrentSyncCommitteeBranch[ii], buf[24628:24788][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (0) 'Header'
+	{
+		buf = tail[o0:]
+		if l.Header == nil {
+			l.Header = new(LightClientHeaderCapella)
+		}
+		if err = l.Header.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientBootstrapCapella object
+func (l *LightClientBootstrapCapella) SizeSSZ() (size int) {
+	size = 24788
+
+	// Field (0) 'Header'
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderCapella)
+	}
+	size += l.Header.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientBootstrapCapella object
+func (l *LightClientBootstrapCapella) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientBootstrapCapella object with a hasher
+func (l *LightClientBootstrapCapella) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Header'
+	if err = l.Header.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if err = l.CurrentSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	{
+		if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.CurrentSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientUpdateCapella object
+func (l *LightClientUpdateCapella) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientUpdateCapella object to a target array
+func (l *LightClientUpdateCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(25152)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.NextSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	if size := len(l.NextSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.NextSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.NextSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.NextSyncCommitteeBranch[ii]...)
+	}
+
+	// Offset (3) 'FinalizedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderCapella)
+	}
+	offset += l.FinalizedHeader.SizeSSZ()
+
+	// Field (4) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientUpdateCapella object
+func (l *LightClientUpdateCapella) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 25152 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0, o3 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 25152 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.NextSyncCommittee.UnmarshalSSZ(buf[4:24628]); err != nil {
+		return err
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	l.NextSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.NextSyncCommitteeBranch[ii]) == 0 {
+			l.NextSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24628:24788][ii*32:(ii+1)*32]))
+		}
+		l.NextSyncCommitteeBranch[ii] = append(l.NextSyncCommitteeBranch[ii], buf[24628:24788][ii*32:(ii+1)*32]...)
+	}
+
+	// Offset (3) 'FinalizedHeader'
+	if o3 = ssz.ReadOffset(buf[24788:24792]); o3 > size || o0 > o3 {
+		return ssz.ErrOffset
+	}
+
+	// Field (4) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[24792:24984][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[24792:24984][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[24984:25144]); err != nil {
+		return err
+	}
+
+	// Field (6) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[25144:25152]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:o3]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderCapella)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+
+	// Field (3) 'FinalizedHeader'
+	{
+		buf = tail[o3:]
+		if l.FinalizedHeader == nil {
+			l.FinalizedHeader = new(LightClientHeaderCapella)
+		}
+		if err = l.FinalizedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientUpdateCapella object
+func (l *LightClientUpdateCapella) SizeSSZ() (size int) {
+	size = 25152
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	// Field (3) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderCapella)
+	}
+	size += l.FinalizedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientUpdateCapella object
+func (l *LightClientUpdateCapella) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientUpdateCapella object with a hasher
+func (l *LightClientUpdateCapella) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if err = l.NextSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	{
+		if size := len(l.NextSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.NextSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientFinalityUpdateCapella object
+func (l *LightClientFinalityUpdateCapella) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientFinalityUpdateCapella object to a target array
+func (l *LightClientFinalityUpdateCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(368)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Offset (1) 'FinalizedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderCapella)
+	}
+	offset += l.FinalizedHeader.SizeSSZ()
+
+	// Field (2) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientFinalityUpdateCapella object
+func (l *LightClientFinalityUpdateCapella) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 368 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0, o1 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 368 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Offset (1) 'FinalizedHeader'
+	if o1 = ssz.ReadOffset(buf[4:8]); o1 > size || o0 > o1 {
+		return ssz.ErrOffset
+	}
+
+	// Field (2) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[8:200][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[8:200][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[200:360]); err != nil {
+		return err
+	}
+
+	// Field (4) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[360:368]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:o1]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderCapella)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+
+	// Field (1) 'FinalizedHeader'
+	{
+		buf = tail[o1:]
+		if l.FinalizedHeader == nil {
+			l.FinalizedHeader = new(LightClientHeaderCapella)
+		}
+		if err = l.FinalizedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientFinalityUpdateCapella object
+func (l *LightClientFinalityUpdateCapella) SizeSSZ() (size int) {
+	size = 368
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderCapella)
+	}
+	size += l.FinalizedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientFinalityUpdateCapella object
+func (l *LightClientFinalityUpdateCapella) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientFinalityUpdateCapella object with a hasher
+func (l *LightClientFinalityUpdateCapella) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientOptimisticUpdateCapella object
+func (l *LightClientOptimisticUpdateCapella) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientOptimisticUpdateCapella object to a target array
+func (l *LightClientOptimisticUpdateCapella) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(172)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientOptimisticUpdateCapella object
+func (l *LightClientOptimisticUpdateCapella) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 172 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 172 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[4:164]); err != nil {
+		return err
+	}
+
+	// Field (2) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[164:172]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderCapella)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientOptimisticUpdateCapella object
+func (l *LightClientOptimisticUpdateCapella) SizeSSZ() (size int) {
+	size = 172
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderCapella)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientOptimisticUpdateCapella object
+func (l *LightClientOptimisticUpdateCapella) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientOptimisticUpdateCapella object with a hasher
+func (l *LightClientOptimisticUpdateCapella) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
 // MarshalSSZ ssz marshals the BLSToExecutionChange object
 func (b *BLSToExecutionChange) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(b)

proto/prysm/v1alpha1/cloners_test.go

@@ -1152,3 +1152,49 @@ func genConsolidationRequest() *enginev1.ConsolidationRequest {
 		TargetPubkey:  bytes(48),
 	}
 }
+
+func genPendingPartialWithdrawals(num int) []*v1alpha1.PendingPartialWithdrawal {
+	ppws := make([]*v1alpha1.PendingPartialWithdrawal, num)
+	for i := 0; i < num; i++ {
+		ppws[i] = genPendingPartialWithdrawal()
+	}
+	return ppws
+}
+
+func genPendingPartialWithdrawal() *v1alpha1.PendingPartialWithdrawal {
+	return &v1alpha1.PendingPartialWithdrawal{
+		Index:             123456,
+		Amount:            55555,
+		WithdrawableEpoch: 444444,
+	}
+}
+
+func genPendingConsolidations(num int) []*v1alpha1.PendingConsolidation {
+	pcs := make([]*v1alpha1.PendingConsolidation, num)
+	for i := 0; i < num; i++ {
+		pcs[i] = genPendingConsolidation()
+	}
+	return pcs
+}
+
+func genPendingConsolidation() *v1alpha1.PendingConsolidation {
+	return &v1alpha1.PendingConsolidation{
+		SourceIndex: 1,
+		TargetIndex: 2,
+	}
+}
+
+func genPendingBalanceDeposits(num int) []*v1alpha1.PendingBalanceDeposit {
+	pbds := make([]*v1alpha1.PendingBalanceDeposit, num)
+	for i := 0; i < num; i++ {
+		pbds[i] = genPendingBalanceDeposit()
+	}
+	return pbds
+}
+
+func genPendingBalanceDeposit() *v1alpha1.PendingBalanceDeposit {
+	return &v1alpha1.PendingBalanceDeposit{
+		Index:  123456,
+		Amount: 55555,
+	}
+}

proto/prysm/v1alpha1/deneb.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 4c3e6932bf84838e8de21e5c121c14d03cbccb051c3990d3b924932f531f4d30
+// Hash: dc56f26fb2603482588d88426187e889583abce2eeb7556ac0dc1ebaa891c455
 package eth
 
 import (
@@ -3593,3 +3593,874 @@ func (b *BlobIdentifier) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	hh.Merkleize(indx)
 	return
 }
+
+// MarshalSSZ ssz marshals the LightClientHeaderDeneb object
+func (l *LightClientHeaderDeneb) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientHeaderDeneb object to a target array
+func (l *LightClientHeaderDeneb) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(244)
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if dst, err = l.Beacon.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Offset (1) 'Execution'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.Execution == nil {
+		l.Execution = new(v1.ExecutionPayloadHeaderDeneb)
+	}
+	offset += l.Execution.SizeSSZ()
+
+	// Field (2) 'ExecutionBranch'
+	if size := len(l.ExecutionBranch); size != 4 {
+		err = ssz.ErrVectorLengthFn("--.ExecutionBranch", size, 4)
+		return
+	}
+	for ii := 0; ii < 4; ii++ {
+		if size := len(l.ExecutionBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.ExecutionBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.ExecutionBranch[ii]...)
+	}
+
+	// Field (1) 'Execution'
+	if dst, err = l.Execution.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientHeaderDeneb object
+func (l *LightClientHeaderDeneb) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 244 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o1 uint64
+
+	// Field (0) 'Beacon'
+	if l.Beacon == nil {
+		l.Beacon = new(BeaconBlockHeader)
+	}
+	if err = l.Beacon.UnmarshalSSZ(buf[0:112]); err != nil {
+		return err
+	}
+
+	// Offset (1) 'Execution'
+	if o1 = ssz.ReadOffset(buf[112:116]); o1 > size {
+		return ssz.ErrOffset
+	}
+
+	if o1 != 244 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (2) 'ExecutionBranch'
+	l.ExecutionBranch = make([][]byte, 4)
+	for ii := 0; ii < 4; ii++ {
+		if cap(l.ExecutionBranch[ii]) == 0 {
+			l.ExecutionBranch[ii] = make([]byte, 0, len(buf[116:244][ii*32:(ii+1)*32]))
+		}
+		l.ExecutionBranch[ii] = append(l.ExecutionBranch[ii], buf[116:244][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (1) 'Execution'
+	{
+		buf = tail[o1:]
+		if l.Execution == nil {
+			l.Execution = new(v1.ExecutionPayloadHeaderDeneb)
+		}
+		if err = l.Execution.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientHeaderDeneb object
+func (l *LightClientHeaderDeneb) SizeSSZ() (size int) {
+	size = 244
+
+	// Field (1) 'Execution'
+	if l.Execution == nil {
+		l.Execution = new(v1.ExecutionPayloadHeaderDeneb)
+	}
+	size += l.Execution.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientHeaderDeneb object
+func (l *LightClientHeaderDeneb) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientHeaderDeneb object with a hasher
+func (l *LightClientHeaderDeneb) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Beacon'
+	if err = l.Beacon.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'Execution'
+	if err = l.Execution.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'ExecutionBranch'
+	{
+		if size := len(l.ExecutionBranch); size != 4 {
+			err = ssz.ErrVectorLengthFn("--.ExecutionBranch", size, 4)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.ExecutionBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientBootstrapDeneb object
+func (l *LightClientBootstrapDeneb) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientBootstrapDeneb object to a target array
+func (l *LightClientBootstrapDeneb) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(24788)
+
+	// Offset (0) 'Header'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderDeneb)
+	}
+	offset += l.Header.SizeSSZ()
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.CurrentSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.CurrentSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.CurrentSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.CurrentSyncCommitteeBranch[ii]...)
+	}
+
+	// Field (0) 'Header'
+	if dst, err = l.Header.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientBootstrapDeneb object
+func (l *LightClientBootstrapDeneb) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 24788 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0 uint64
+
+	// Offset (0) 'Header'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 24788 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if l.CurrentSyncCommittee == nil {
+		l.CurrentSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.CurrentSyncCommittee.UnmarshalSSZ(buf[4:24628]); err != nil {
+		return err
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	l.CurrentSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.CurrentSyncCommitteeBranch[ii]) == 0 {
+			l.CurrentSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24628:24788][ii*32:(ii+1)*32]))
+		}
+		l.CurrentSyncCommitteeBranch[ii] = append(l.CurrentSyncCommitteeBranch[ii], buf[24628:24788][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (0) 'Header'
+	{
+		buf = tail[o0:]
+		if l.Header == nil {
+			l.Header = new(LightClientHeaderDeneb)
+		}
+		if err = l.Header.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientBootstrapDeneb object
+func (l *LightClientBootstrapDeneb) SizeSSZ() (size int) {
+	size = 24788
+
+	// Field (0) 'Header'
+	if l.Header == nil {
+		l.Header = new(LightClientHeaderDeneb)
+	}
+	size += l.Header.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientBootstrapDeneb object
+func (l *LightClientBootstrapDeneb) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientBootstrapDeneb object with a hasher
+func (l *LightClientBootstrapDeneb) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Header'
+	if err = l.Header.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'CurrentSyncCommittee'
+	if err = l.CurrentSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'CurrentSyncCommitteeBranch'
+	{
+		if size := len(l.CurrentSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.CurrentSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.CurrentSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientUpdateDeneb object
+func (l *LightClientUpdateDeneb) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientUpdateDeneb object to a target array
+func (l *LightClientUpdateDeneb) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(25152)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if dst, err = l.NextSyncCommittee.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	if size := len(l.NextSyncCommitteeBranch); size != 5 {
+		err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+		return
+	}
+	for ii := 0; ii < 5; ii++ {
+		if size := len(l.NextSyncCommitteeBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.NextSyncCommitteeBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.NextSyncCommitteeBranch[ii]...)
+	}
+
+	// Offset (3) 'FinalizedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderDeneb)
+	}
+	offset += l.FinalizedHeader.SizeSSZ()
+
+	// Field (4) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientUpdateDeneb object
+func (l *LightClientUpdateDeneb) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 25152 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0, o3 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 25152 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if l.NextSyncCommittee == nil {
+		l.NextSyncCommittee = new(SyncCommittee)
+	}
+	if err = l.NextSyncCommittee.UnmarshalSSZ(buf[4:24628]); err != nil {
+		return err
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	l.NextSyncCommitteeBranch = make([][]byte, 5)
+	for ii := 0; ii < 5; ii++ {
+		if cap(l.NextSyncCommitteeBranch[ii]) == 0 {
+			l.NextSyncCommitteeBranch[ii] = make([]byte, 0, len(buf[24628:24788][ii*32:(ii+1)*32]))
+		}
+		l.NextSyncCommitteeBranch[ii] = append(l.NextSyncCommitteeBranch[ii], buf[24628:24788][ii*32:(ii+1)*32]...)
+	}
+
+	// Offset (3) 'FinalizedHeader'
+	if o3 = ssz.ReadOffset(buf[24788:24792]); o3 > size || o0 > o3 {
+		return ssz.ErrOffset
+	}
+
+	// Field (4) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[24792:24984][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[24792:24984][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[24984:25144]); err != nil {
+		return err
+	}
+
+	// Field (6) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[25144:25152]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:o3]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderDeneb)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+
+	// Field (3) 'FinalizedHeader'
+	{
+		buf = tail[o3:]
+		if l.FinalizedHeader == nil {
+			l.FinalizedHeader = new(LightClientHeaderDeneb)
+		}
+		if err = l.FinalizedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientUpdateDeneb object
+func (l *LightClientUpdateDeneb) SizeSSZ() (size int) {
+	size = 25152
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	// Field (3) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderDeneb)
+	}
+	size += l.FinalizedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientUpdateDeneb object
+func (l *LightClientUpdateDeneb) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientUpdateDeneb object with a hasher
+func (l *LightClientUpdateDeneb) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'NextSyncCommittee'
+	if err = l.NextSyncCommittee.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'NextSyncCommitteeBranch'
+	{
+		if size := len(l.NextSyncCommitteeBranch); size != 5 {
+			err = ssz.ErrVectorLengthFn("--.NextSyncCommitteeBranch", size, 5)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.NextSyncCommitteeBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (5) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (6) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientFinalityUpdateDeneb object
+func (l *LightClientFinalityUpdateDeneb) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientFinalityUpdateDeneb object to a target array
+func (l *LightClientFinalityUpdateDeneb) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(368)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Offset (1) 'FinalizedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderDeneb)
+	}
+	offset += l.FinalizedHeader.SizeSSZ()
+
+	// Field (2) 'FinalityBranch'
+	if size := len(l.FinalityBranch); size != 6 {
+		err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+		return
+	}
+	for ii := 0; ii < 6; ii++ {
+		if size := len(l.FinalityBranch[ii]); size != 32 {
+			err = ssz.ErrBytesLengthFn("--.FinalityBranch[ii]", size, 32)
+			return
+		}
+		dst = append(dst, l.FinalityBranch[ii]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if dst, err = l.FinalizedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientFinalityUpdateDeneb object
+func (l *LightClientFinalityUpdateDeneb) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 368 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0, o1 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 368 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Offset (1) 'FinalizedHeader'
+	if o1 = ssz.ReadOffset(buf[4:8]); o1 > size || o0 > o1 {
+		return ssz.ErrOffset
+	}
+
+	// Field (2) 'FinalityBranch'
+	l.FinalityBranch = make([][]byte, 6)
+	for ii := 0; ii < 6; ii++ {
+		if cap(l.FinalityBranch[ii]) == 0 {
+			l.FinalityBranch[ii] = make([]byte, 0, len(buf[8:200][ii*32:(ii+1)*32]))
+		}
+		l.FinalityBranch[ii] = append(l.FinalityBranch[ii], buf[8:200][ii*32:(ii+1)*32]...)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[200:360]); err != nil {
+		return err
+	}
+
+	// Field (4) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[360:368]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:o1]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderDeneb)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+
+	// Field (1) 'FinalizedHeader'
+	{
+		buf = tail[o1:]
+		if l.FinalizedHeader == nil {
+			l.FinalizedHeader = new(LightClientHeaderDeneb)
+		}
+		if err = l.FinalizedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientFinalityUpdateDeneb object
+func (l *LightClientFinalityUpdateDeneb) SizeSSZ() (size int) {
+	size = 368
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'FinalizedHeader'
+	if l.FinalizedHeader == nil {
+		l.FinalizedHeader = new(LightClientHeaderDeneb)
+	}
+	size += l.FinalizedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientFinalityUpdateDeneb object
+func (l *LightClientFinalityUpdateDeneb) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientFinalityUpdateDeneb object with a hasher
+func (l *LightClientFinalityUpdateDeneb) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'FinalizedHeader'
+	if err = l.FinalizedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'FinalityBranch'
+	{
+		if size := len(l.FinalityBranch); size != 6 {
+			err = ssz.ErrVectorLengthFn("--.FinalityBranch", size, 6)
+			return
+		}
+		subIndx := hh.Index()
+		for _, i := range l.FinalityBranch {
+			if len(i) != 32 {
+				err = ssz.ErrBytesLength
+				return
+			}
+			hh.Append(i)
+		}
+		hh.Merkleize(subIndx)
+	}
+
+	// Field (3) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (4) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}
+
+// MarshalSSZ ssz marshals the LightClientOptimisticUpdateDeneb object
+func (l *LightClientOptimisticUpdateDeneb) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(l)
+}
+
+// MarshalSSZTo ssz marshals the LightClientOptimisticUpdateDeneb object to a target array
+func (l *LightClientOptimisticUpdateDeneb) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(172)
+
+	// Offset (0) 'AttestedHeader'
+	dst = ssz.WriteOffset(dst, offset)
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	offset += l.AttestedHeader.SizeSSZ()
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if dst, err = l.SyncAggregate.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	dst = ssz.MarshalUint64(dst, uint64(l.SignatureSlot))
+
+	// Field (0) 'AttestedHeader'
+	if dst, err = l.AttestedHeader.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the LightClientOptimisticUpdateDeneb object
+func (l *LightClientOptimisticUpdateDeneb) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 172 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0 uint64
+
+	// Offset (0) 'AttestedHeader'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 != 172 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'SyncAggregate'
+	if l.SyncAggregate == nil {
+		l.SyncAggregate = new(SyncAggregate)
+	}
+	if err = l.SyncAggregate.UnmarshalSSZ(buf[4:164]); err != nil {
+		return err
+	}
+
+	// Field (2) 'SignatureSlot'
+	l.SignatureSlot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[164:172]))
+
+	// Field (0) 'AttestedHeader'
+	{
+		buf = tail[o0:]
+		if l.AttestedHeader == nil {
+			l.AttestedHeader = new(LightClientHeaderDeneb)
+		}
+		if err = l.AttestedHeader.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the LightClientOptimisticUpdateDeneb object
+func (l *LightClientOptimisticUpdateDeneb) SizeSSZ() (size int) {
+	size = 172
+
+	// Field (0) 'AttestedHeader'
+	if l.AttestedHeader == nil {
+		l.AttestedHeader = new(LightClientHeaderDeneb)
+	}
+	size += l.AttestedHeader.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the LightClientOptimisticUpdateDeneb object
+func (l *LightClientOptimisticUpdateDeneb) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(l)
+}
+
+// HashTreeRootWith ssz hashes the LightClientOptimisticUpdateDeneb object with a hasher
+func (l *LightClientOptimisticUpdateDeneb) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'AttestedHeader'
+	if err = l.AttestedHeader.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'SyncAggregate'
+	if err = l.SyncAggregate.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (2) 'SignatureSlot'
+	hh.PutUint64(uint64(l.SignatureSlot))
+
+	hh.Merkleize(indx)
+	return
+}

proto/prysm/v1alpha1/eip_7251.pb.go

@@ -23,20 +23,17 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type PendingDeposit struct {
+type PendingBalanceDeposit struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	PublicKey             []byte                                                            `protobuf:"bytes,1,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty" spec-name:"pubkey" ssz-size:"48"`
-	WithdrawalCredentials []byte                                                            `protobuf:"bytes,2,opt,name=withdrawal_credentials,json=withdrawalCredentials,proto3" json:"withdrawal_credentials,omitempty" ssz-size:"32"`
-	Amount                uint64                                                            `protobuf:"varint,3,opt,name=amount,proto3" json:"amount,omitempty"`
-	Signature             []byte                                                            `protobuf:"bytes,4,opt,name=signature,proto3" json:"signature,omitempty" ssz-size:"96"`
-	Slot                  github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot `protobuf:"varint,5,opt,name=slot,proto3" json:"slot,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"`
+	Index  github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.ValidatorIndex `protobuf:"varint,1,opt,name=index,proto3" json:"index,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.ValidatorIndex"`
+	Amount uint64                                                                      `protobuf:"varint,2,opt,name=amount,proto3" json:"amount,omitempty"`
 }
 
-func (x *PendingDeposit) Reset() {
-	*x = PendingDeposit{}
+func (x *PendingBalanceDeposit) Reset() {
+	*x = PendingBalanceDeposit{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_proto_prysm_v1alpha1_eip_7251_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -44,13 +41,13 @@ func (x *PendingDeposit) Reset() {
 	}
 }
 
-func (x *PendingDeposit) String() string {
+func (x *PendingBalanceDeposit) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*PendingDeposit) ProtoMessage() {}
+func (*PendingBalanceDeposit) ProtoMessage() {}
 
-func (x *PendingDeposit) ProtoReflect() protoreflect.Message {
+func (x *PendingBalanceDeposit) ProtoReflect() protoreflect.Message {
 	mi := &file_proto_prysm_v1alpha1_eip_7251_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -62,46 +59,25 @@ func (x *PendingDeposit) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use PendingDeposit.ProtoReflect.Descriptor instead.
-func (*PendingDeposit) Descriptor() ([]byte, []int) {
+// Deprecated: Use PendingBalanceDeposit.ProtoReflect.Descriptor instead.
+func (*PendingBalanceDeposit) Descriptor() ([]byte, []int) {
 	return file_proto_prysm_v1alpha1_eip_7251_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *PendingDeposit) GetPublicKey() []byte {
+func (x *PendingBalanceDeposit) GetIndex() github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.ValidatorIndex {
 	if x != nil {
-		return x.PublicKey
+		return x.Index
 	}
-	return nil
+	return github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.ValidatorIndex(0)
 }
 
-func (x *PendingDeposit) GetWithdrawalCredentials() []byte {
-	if x != nil {
-		return x.WithdrawalCredentials
-	}
-	return nil
-}
-
-func (x *PendingDeposit) GetAmount() uint64 {
+func (x *PendingBalanceDeposit) GetAmount() uint64 {
 	if x != nil {
 		return x.Amount
 	}
 	return 0
 }
 
-func (x *PendingDeposit) GetSignature() []byte {
-	if x != nil {
-		return x.Signature
-	}
-	return nil
-}
-
-func (x *PendingDeposit) GetSlot() github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot {
-	if x != nil {
-		return x.Slot
-	}
-	return github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(0)
-}
-
 type PendingPartialWithdrawal struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -228,68 +204,60 @@ var file_proto_prysm_v1alpha1_eip_7251_proto_rawDesc = []byte{
 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x15, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e,
 	0x65, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x1a, 0x1b, 0x70, 0x72,
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+	0x79, 0x73, 0x6d, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x3b, 0x65, 0x74, 0x68,
+	0xaa, 0x02, 0x15, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x45, 0x74, 0x68, 0x2e,
+	0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xca, 0x02, 0x15, 0x45, 0x74, 0x68, 0x65, 0x72,
+	0x65, 0x75, 0x6d, 0x5c, 0x45, 0x74, 0x68, 0x5c, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -306,7 +274,7 @@ func file_proto_prysm_v1alpha1_eip_7251_proto_rawDescGZIP() []byte {
 
 var file_proto_prysm_v1alpha1_eip_7251_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
 var file_proto_prysm_v1alpha1_eip_7251_proto_goTypes = []interface{}{
-	(*PendingDeposit)(nil),           // 0: ethereum.eth.v1alpha1.PendingDeposit
+	(*PendingBalanceDeposit)(nil),    // 0: ethereum.eth.v1alpha1.PendingBalanceDeposit
 	(*PendingPartialWithdrawal)(nil), // 1: ethereum.eth.v1alpha1.PendingPartialWithdrawal
 	(*PendingConsolidation)(nil),     // 2: ethereum.eth.v1alpha1.PendingConsolidation
 }
@@ -325,7 +293,7 @@ func file_proto_prysm_v1alpha1_eip_7251_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_proto_prysm_v1alpha1_eip_7251_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PendingDeposit); i {
+			switch v := v.(*PendingBalanceDeposit); i {
 			case 0:
 				return &v.state
 			case 1:

proto/prysm/v1alpha1/eip_7251.proto

@@ -24,18 +24,12 @@ option java_outer_classname = "EIP7251Proto";
 option java_package = "org.ethereum.eth.v1alpha1";
 option php_namespace = "Ethereum\\Eth\\v1alpha1";
 
-message PendingDeposit {
-    // 48 byte BLS public key of the validator.
-    bytes public_key = 1 [(ethereum.eth.ext.ssz_size) = "48", (ethereum.eth.ext.spec_name) = "pubkey"];
-
-    // A 32 byte hash of the withdrawal address public key.
-    bytes withdrawal_credentials = 2 [(ethereum.eth.ext.ssz_size) = "32"];
+message PendingBalanceDeposit {
+    // Validator index for the deposit.
+    uint64 index = 1 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.ValidatorIndex"];
 
     // The amount of the deposit (gwei).
-    uint64 amount = 3;
-    // 96 byte BLS signature from the validator that produced this block.
-    bytes signature = 4 [(ethereum.eth.ext.ssz_size) = "96"];
-    uint64 slot = 5 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+    uint64 amount = 2;
 }
 
 message PendingPartialWithdrawal {

proto/prysm/v1alpha1/eip_7521.go

@@ -1,21 +1,5 @@
 package eth
 
-import "github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-
-// Copy --
-func (pd *PendingDeposit) Copy() *PendingDeposit {
-	if pd == nil {
-		return nil
-	}
-	return &PendingDeposit{
-		PublicKey:             bytesutil.SafeCopyBytes(pd.PublicKey),
-		WithdrawalCredentials: bytesutil.SafeCopyBytes(pd.WithdrawalCredentials),
-		Amount:                pd.Amount,
-		Signature:             bytesutil.SafeCopyBytes(pd.Signature),
-		Slot:                  pd.Slot,
-	}
-}
-
 // Copy --
 func (pw *PendingPartialWithdrawal) Copy() *PendingPartialWithdrawal {
 	if pw == nil {

proto/prysm/v1alpha1/eip_7521_fuzz_test.go

@@ -7,7 +7,6 @@ import (
 )
 
 func TestCopyEip7521Types_Fuzz(t *testing.T) {
-	fuzzCopies(t, &eth.PendingDeposit{})
 	fuzzCopies(t, &eth.PendingPartialWithdrawal{})
 	fuzzCopies(t, &eth.PendingConsolidation{})
 }

proto/prysm/v1alpha1/electra.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 8009dff4967583f3039317182cf9c9f5c46922f00fe10c357d9d32b0a264e28b
+// Hash: 3a2dbf56ebf4e81fbf961840a4cd2addac9047b17c12bad04e60879df5b69277
 package eth
 
 import (
@@ -3083,9 +3083,9 @@ func (b *BeaconStateElectra) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 	// Field (33) 'EarliestConsolidationEpoch'
 	dst = ssz.MarshalUint64(dst, uint64(b.EarliestConsolidationEpoch))
 
-	// Offset (34) 'PendingDeposits'
+	// Offset (34) 'PendingBalanceDeposits'
 	dst = ssz.WriteOffset(dst, offset)
-	offset += len(b.PendingDeposits) * 192
+	offset += len(b.PendingBalanceDeposits) * 16
 
 	// Offset (35) 'PendingPartialWithdrawals'
 	dst = ssz.WriteOffset(dst, offset)
@@ -3178,13 +3178,13 @@ func (b *BeaconStateElectra) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 		}
 	}
 
-	// Field (34) 'PendingDeposits'
-	if size := len(b.PendingDeposits); size > 134217728 {
-		err = ssz.ErrListTooBigFn("--.PendingDeposits", size, 134217728)
+	// Field (34) 'PendingBalanceDeposits'
+	if size := len(b.PendingBalanceDeposits); size > 134217728 {
+		err = ssz.ErrListTooBigFn("--.PendingBalanceDeposits", size, 134217728)
 		return
 	}
-	for ii := 0; ii < len(b.PendingDeposits); ii++ {
-		if dst, err = b.PendingDeposits[ii].MarshalSSZTo(dst); err != nil {
+	for ii := 0; ii < len(b.PendingBalanceDeposits); ii++ {
+		if dst, err = b.PendingBalanceDeposits[ii].MarshalSSZTo(dst); err != nil {
 			return
 		}
 	}
@@ -3416,7 +3416,7 @@ func (b *BeaconStateElectra) UnmarshalSSZ(buf []byte) error {
 	// Field (33) 'EarliestConsolidationEpoch'
 	b.EarliestConsolidationEpoch = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch(ssz.UnmarshallUint64(buf[2736693:2736701]))
 
-	// Offset (34) 'PendingDeposits'
+	// Offset (34) 'PendingBalanceDeposits'
 	if o34 = ssz.ReadOffset(buf[2736701:2736705]); o34 > size || o27 > o34 {
 		return ssz.ErrOffset
 	}
@@ -3562,19 +3562,19 @@ func (b *BeaconStateElectra) UnmarshalSSZ(buf []byte) error {
 		}
 	}
 
-	// Field (34) 'PendingDeposits'
+	// Field (34) 'PendingBalanceDeposits'
 	{
 		buf = tail[o34:o35]
-		num, err := ssz.DivideInt2(len(buf), 192, 134217728)
+		num, err := ssz.DivideInt2(len(buf), 16, 134217728)
 		if err != nil {
 			return err
 		}
-		b.PendingDeposits = make([]*PendingDeposit, num)
+		b.PendingBalanceDeposits = make([]*PendingBalanceDeposit, num)
 		for ii := 0; ii < num; ii++ {
-			if b.PendingDeposits[ii] == nil {
-				b.PendingDeposits[ii] = new(PendingDeposit)
+			if b.PendingBalanceDeposits[ii] == nil {
+				b.PendingBalanceDeposits[ii] = new(PendingBalanceDeposit)
 			}
-			if err = b.PendingDeposits[ii].UnmarshalSSZ(buf[ii*192 : (ii+1)*192]); err != nil {
+			if err = b.PendingBalanceDeposits[ii].UnmarshalSSZ(buf[ii*16 : (ii+1)*16]); err != nil {
 				return err
 			}
 		}
@@ -3652,8 +3652,8 @@ func (b *BeaconStateElectra) SizeSSZ() (size int) {
 	// Field (27) 'HistoricalSummaries'
 	size += len(b.HistoricalSummaries) * 64
 
-	// Field (34) 'PendingDeposits'
-	size += len(b.PendingDeposits) * 192
+	// Field (34) 'PendingBalanceDeposits'
+	size += len(b.PendingBalanceDeposits) * 16
 
 	// Field (35) 'PendingPartialWithdrawals'
 	size += len(b.PendingPartialWithdrawals) * 24
@@ -3952,15 +3952,15 @@ func (b *BeaconStateElectra) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	// Field (33) 'EarliestConsolidationEpoch'
 	hh.PutUint64(uint64(b.EarliestConsolidationEpoch))
 
-	// Field (34) 'PendingDeposits'
+	// Field (34) 'PendingBalanceDeposits'
 	{
 		subIndx := hh.Index()
-		num := uint64(len(b.PendingDeposits))
+		num := uint64(len(b.PendingBalanceDeposits))
 		if num > 134217728 {
 			err = ssz.ErrIncorrectListSize
 			return
 		}
-		for _, elem := range b.PendingDeposits {
+		for _, elem := range b.PendingBalanceDeposits {
 			if err = elem.HashTreeRootWith(hh); err != nil {
 				return
 			}
@@ -4004,122 +4004,62 @@ func (b *BeaconStateElectra) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	return
 }
 
-// MarshalSSZ ssz marshals the PendingDeposit object
-func (p *PendingDeposit) MarshalSSZ() ([]byte, error) {
+// MarshalSSZ ssz marshals the PendingBalanceDeposit object
+func (p *PendingBalanceDeposit) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(p)
 }
 
-// MarshalSSZTo ssz marshals the PendingDeposit object to a target array
-func (p *PendingDeposit) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+// MarshalSSZTo ssz marshals the PendingBalanceDeposit object to a target array
+func (p *PendingBalanceDeposit) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 	dst = buf
 
-	// Field (0) 'PublicKey'
-	if size := len(p.PublicKey); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.PublicKey", size, 48)
-		return
-	}
-	dst = append(dst, p.PublicKey...)
+	// Field (0) 'Index'
+	dst = ssz.MarshalUint64(dst, uint64(p.Index))
 
-	// Field (1) 'WithdrawalCredentials'
-	if size := len(p.WithdrawalCredentials); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.WithdrawalCredentials", size, 32)
-		return
-	}
-	dst = append(dst, p.WithdrawalCredentials...)
-
-	// Field (2) 'Amount'
+	// Field (1) 'Amount'
 	dst = ssz.MarshalUint64(dst, p.Amount)
 
-	// Field (3) 'Signature'
-	if size := len(p.Signature); size != 96 {
-		err = ssz.ErrBytesLengthFn("--.Signature", size, 96)
-		return
-	}
-	dst = append(dst, p.Signature...)
-
-	// Field (4) 'Slot'
-	dst = ssz.MarshalUint64(dst, uint64(p.Slot))
-
 	return
 }
 
-// UnmarshalSSZ ssz unmarshals the PendingDeposit object
-func (p *PendingDeposit) UnmarshalSSZ(buf []byte) error {
+// UnmarshalSSZ ssz unmarshals the PendingBalanceDeposit object
+func (p *PendingBalanceDeposit) UnmarshalSSZ(buf []byte) error {
 	var err error
 	size := uint64(len(buf))
-	if size != 192 {
+	if size != 16 {
 		return ssz.ErrSize
 	}
 
-	// Field (0) 'PublicKey'
-	if cap(p.PublicKey) == 0 {
-		p.PublicKey = make([]byte, 0, len(buf[0:48]))
-	}
-	p.PublicKey = append(p.PublicKey, buf[0:48]...)
+	// Field (0) 'Index'
+	p.Index = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.ValidatorIndex(ssz.UnmarshallUint64(buf[0:8]))
 
-	// Field (1) 'WithdrawalCredentials'
-	if cap(p.WithdrawalCredentials) == 0 {
-		p.WithdrawalCredentials = make([]byte, 0, len(buf[48:80]))
-	}
-	p.WithdrawalCredentials = append(p.WithdrawalCredentials, buf[48:80]...)
-
-	// Field (2) 'Amount'
-	p.Amount = ssz.UnmarshallUint64(buf[80:88])
-
-	// Field (3) 'Signature'
-	if cap(p.Signature) == 0 {
-		p.Signature = make([]byte, 0, len(buf[88:184]))
-	}
-	p.Signature = append(p.Signature, buf[88:184]...)
-
-	// Field (4) 'Slot'
-	p.Slot = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[184:192]))
+	// Field (1) 'Amount'
+	p.Amount = ssz.UnmarshallUint64(buf[8:16])
 
 	return err
 }
 
-// SizeSSZ returns the ssz encoded size in bytes for the PendingDeposit object
-func (p *PendingDeposit) SizeSSZ() (size int) {
-	size = 192
+// SizeSSZ returns the ssz encoded size in bytes for the PendingBalanceDeposit object
+func (p *PendingBalanceDeposit) SizeSSZ() (size int) {
+	size = 16
 	return
 }
 
-// HashTreeRoot ssz hashes the PendingDeposit object
-func (p *PendingDeposit) HashTreeRoot() ([32]byte, error) {
+// HashTreeRoot ssz hashes the PendingBalanceDeposit object
+func (p *PendingBalanceDeposit) HashTreeRoot() ([32]byte, error) {
 	return ssz.HashWithDefaultHasher(p)
 }
 
-// HashTreeRootWith ssz hashes the PendingDeposit object with a hasher
-func (p *PendingDeposit) HashTreeRootWith(hh *ssz.Hasher) (err error) {
+// HashTreeRootWith ssz hashes the PendingBalanceDeposit object with a hasher
+func (p *PendingBalanceDeposit) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	indx := hh.Index()
 
-	// Field (0) 'PublicKey'
-	if size := len(p.PublicKey); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.PublicKey", size, 48)
-		return
-	}
-	hh.PutBytes(p.PublicKey)
+	// Field (0) 'Index'
+	hh.PutUint64(uint64(p.Index))
 
-	// Field (1) 'WithdrawalCredentials'
-	if size := len(p.WithdrawalCredentials); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.WithdrawalCredentials", size, 32)
-		return
-	}
-	hh.PutBytes(p.WithdrawalCredentials)
-
-	// Field (2) 'Amount'
+	// Field (1) 'Amount'
 	hh.PutUint64(p.Amount)
 
-	// Field (3) 'Signature'
-	if size := len(p.Signature); size != 96 {
-		err = ssz.ErrBytesLengthFn("--.Signature", size, 96)
-		return
-	}
-	hh.PutBytes(p.Signature)
-
-	// Field (4) 'Slot'
-	hh.PutUint64(uint64(p.Slot))
-
 	hh.Merkleize(indx)
 	return
 }

proto/prysm/v1alpha1/light_client.proto

@@ -0,0 +1,134 @@
+// Copyright 2024 Prysmatic Labs.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+syntax = "proto3";
+
+package ethereum.eth.v1alpha1;
+
+import "proto/eth/ext/options.proto";
+import "proto/prysm/v1alpha1/beacon_block.proto";
+import "proto/engine/v1/execution_engine.proto";
+import "proto/prysm/v1alpha1/beacon_state.proto";
+
+option csharp_namespace = "Ethereum.Eth.V1alpha1";
+option go_package = "github.com/prysmaticlabs/prysm/v5/proto/eth/v1alpha1;eth";
+option java_multiple_files = true;
+option java_outer_classname = "LightClientProto";
+option java_package = "org.ethereum.eth.v1alpha1";
+option php_namespace = "Ethereum\\Eth\\v1alpha1";
+
+message LightClientHeaderAltair {
+  BeaconBlockHeader beacon = 1;
+}
+
+message LightClientHeaderCapella {
+  BeaconBlockHeader beacon = 1;
+  ethereum.engine.v1.ExecutionPayloadHeaderCapella execution = 2;
+  repeated bytes execution_branch = 3 [(ethereum.eth.ext.ssz_size) = "4,32"];
+}
+
+message LightClientHeaderDeneb {
+  BeaconBlockHeader beacon = 1;
+  ethereum.engine.v1.ExecutionPayloadHeaderDeneb execution = 2;
+  repeated bytes execution_branch = 3 [(ethereum.eth.ext.ssz_size) = "4,32"];
+}
+
+message LightClientBootstrapAltair {
+  LightClientHeaderAltair header = 1;
+  SyncCommittee current_sync_committee = 2;
+  repeated bytes current_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+}
+
+message LightClientBootstrapCapella {
+  LightClientHeaderCapella header = 1;
+  SyncCommittee current_sync_committee = 2;
+  repeated bytes current_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+}
+
+message LightClientBootstrapDeneb {
+  LightClientHeaderDeneb header = 1;
+  SyncCommittee current_sync_committee = 2;
+  repeated bytes current_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+}
+
+message LightClientUpdateAltair {
+  LightClientHeaderAltair attested_header = 1;
+  SyncCommittee next_sync_committee = 2;
+  repeated bytes next_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+  LightClientHeaderAltair finalized_header = 4;
+  repeated bytes finality_branch = 5 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 6;
+  uint64 signature_slot = 7 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientUpdateCapella {
+  LightClientHeaderCapella attested_header = 1;
+  SyncCommittee next_sync_committee = 2;
+  repeated bytes next_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+  LightClientHeaderCapella finalized_header = 4;
+  repeated bytes finality_branch = 5 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 6;
+  uint64 signature_slot = 7 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientUpdateDeneb {
+  LightClientHeaderDeneb attested_header = 1;
+  SyncCommittee next_sync_committee = 2;
+  repeated bytes next_sync_committee_branch = 3 [(ethereum.eth.ext.ssz_size) = "5,32"];
+  LightClientHeaderDeneb finalized_header = 4;
+  repeated bytes finality_branch = 5 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 6;
+  uint64 signature_slot = 7 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientFinalityUpdateAltair {
+  LightClientHeaderAltair attested_header = 1;
+  LightClientHeaderAltair finalized_header = 2;
+  repeated bytes finality_branch = 3 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 4;
+  uint64 signature_slot = 5 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientFinalityUpdateCapella {
+  LightClientHeaderCapella attested_header = 1;
+  LightClientHeaderCapella finalized_header = 2;
+  repeated bytes finality_branch = 3 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 4;
+  uint64 signature_slot = 5 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientFinalityUpdateDeneb {
+  LightClientHeaderDeneb attested_header = 1;
+  LightClientHeaderDeneb finalized_header = 2;
+  repeated bytes finality_branch = 3 [(ethereum.eth.ext.ssz_size) = "6,32"];
+  SyncAggregate sync_aggregate = 4;
+  uint64 signature_slot = 5 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientOptimisticUpdateAltair {
+  LightClientHeaderAltair attested_header = 1;
+  SyncAggregate sync_aggregate = 2;
+  uint64 signature_slot = 3 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientOptimisticUpdateCapella {
+  LightClientHeaderCapella attested_header = 1;
+  SyncAggregate sync_aggregate = 2;
+  uint64 signature_slot = 3 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}
+
+message LightClientOptimisticUpdateDeneb {
+  LightClientHeaderDeneb attested_header = 1;
+  SyncAggregate sync_aggregate = 2;
+  uint64 signature_slot = 3 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v5/consensus-types/primitives.Slot"];
+}

proto/prysm/v1alpha1/non-core.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 4cb7a5705004491db2ef29a5080a4cc56a1b618de948a86f9e5275858b48e6c4
+// Hash: bfd7d6b556134c3bd236b880245717aa01ae79573b33f2746a08c165ba5dcedb
 package eth
 
 import (

proto/prysm/v1alpha1/phase0.ssz.go

@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 0afa289ce68dc2913d8000d495c6069832f35b66a6c0cf1bb0d1299fcad7047a
+// Hash: 5797213d138ec1a089f9dae2198cab6f4f829ac0cc1f0bda2633fff544db4e68
 package eth
 
 import (
@@ -3979,7 +3979,10 @@ func (v *Validator) UnmarshalSSZ(buf []byte) error {
 	v.EffectiveBalance = ssz.UnmarshallUint64(buf[80:88])
 
 	// Field (3) 'Slashed'
-	v.Slashed = ssz.UnmarshalBool(buf[88:89])
+	v.Slashed, err = ssz.DecodeBool(buf[88:89])
+	if err != nil {
+		return err
+	}
 
 	// Field (4) 'ActivationEligibilityEpoch'
 	v.ActivationEligibilityEpoch = github_com_prysmaticlabs_prysm_v5_consensus_types_primitives.Epoch(ssz.UnmarshallUint64(buf[89:97]))

proto/ssz_proto_library.bzl

@@ -32,7 +32,7 @@ mainnet = {
     "max_committees_per_slot.size": "64",
     "committee_bits.size": "8",
     "committee_bits.type": "github.com/prysmaticlabs/go-bitfield.Bitvector64",
-    "pending_deposits_limit": "134217728",
+    "pending_balance_deposits_limit": "134217728",
     "pending_partial_withdrawals_limit": "134217728",
     "pending_consolidations_limit": "262144",
     "max_consolidation_requests_per_payload.size": "1",
@@ -64,7 +64,7 @@ minimal = {
     "max_committees_per_slot.size": "4",
     "committee_bits.size": "1",
     "committee_bits.type": "github.com/prysmaticlabs/go-bitfield.Bitvector4",
-    "pending_deposits_limit": "134217728",
+    "pending_balance_deposits_limit": "134217728",
     "pending_partial_withdrawals_limit": "64",
     "pending_consolidations_limit": "64",
     "max_consolidation_requests_per_payload.size": "1",

testing/spectest/mainnet/electra/epoch_processing/BUILD.bazel

@@ -9,8 +9,8 @@ go_test(
         "inactivity_updates_test.go",
         "justification_and_finalization_test.go",
         "participation_flag_updates_test.go",
+        "pending_balance_updates_test.go",
         "pending_consolidations_test.go",
-        "pending_deposits_updates_test.go",
         "randao_mixes_reset_test.go",
         "registry_updates_test.go",
         "rewards_and_penalties_test.go",

testing/spectest/mainnet/electra/epoch_processing/pending_balance_updates_test.go

@@ -0,0 +1,11 @@
+package epoch_processing
+
+import (
+	"testing"
+
+	"github.com/prysmaticlabs/prysm/v5/testing/spectest/shared/electra/epoch_processing"
+)
+
+func TestMainnet_Electra_EpochProcessing_PendingBalanceDeposits(t *testing.T) {
+	epoch_processing.RunPendingBalanceDepositsTests(t, "mainnet")
+}

testing/spectest/mainnet/electra/epoch_processing/pending_deposits_updates_test.go

@@ -1,11 +0,0 @@
-package epoch_processing
-
-import (
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/testing/spectest/shared/electra/epoch_processing"
-)
-
-func TestMainnet_Electra_EpochProcessing_PendingDeposits(t *testing.T) {
-	epoch_processing.RunPendingDepositsTests(t, "mainnet")
-}

testing/spectest/minimal/electra/epoch_processing/BUILD.bazel

@@ -9,8 +9,8 @@ go_test(
         "inactivity_updates_test.go",
         "justification_and_finalization_test.go",
         "participation_flag_updates_test.go",
+        "pending_balance_updates_test.go",
         "pending_consolidations_test.go",
-        "pending_deposits_updates_test.go",
         "randao_mixes_reset_test.go",
         "registry_updates_test.go",
         "rewards_and_penalties_test.go",

testing/spectest/minimal/electra/epoch_processing/pending_balance_updates_test.go

@@ -0,0 +1,11 @@
+package epoch_processing
+
+import (
+	"testing"
+
+	"github.com/prysmaticlabs/prysm/v5/testing/spectest/shared/electra/epoch_processing"
+)
+
+func TestMinimal_Electra_EpochProcessing_PendingBalanceDeposits(t *testing.T) {
+	epoch_processing.RunPendingBalanceDepositsTests(t, "minimal")
+}

testing/spectest/minimal/electra/epoch_processing/pending_deposits_updates_test.go

@@ -1,11 +0,0 @@
-package epoch_processing
-
-import (
-	"testing"
-
-	"github.com/prysmaticlabs/prysm/v5/testing/spectest/shared/electra/epoch_processing"
-)
-
-func TestMinimal_Electra_EpochProcessing_PendingDeposits(t *testing.T) {
-	epoch_processing.RunPendingDepositsTests(t, "minimal")
-}

testing/spectest/shared/electra/epoch_processing/BUILD.bazel

@@ -11,8 +11,8 @@ go_library(
         "inactivity_updates.go",
         "justification_and_finalization.go",
         "participation_flag_updates.go",
+        "pending_balance_updates.go",
         "pending_consolidations.go",
-        "pending_deposit_updates.go",
         "randao_mixes_reset.go",
         "registry_updates.go",
         "rewards_and_penalties.go",

testing/spectest/shared/electra/epoch_processing/pending_balance_updates.go

@@ -13,23 +13,23 @@ import (
 	"github.com/prysmaticlabs/prysm/v5/testing/spectest/utils"
 )
 
-func RunPendingDepositsTests(t *testing.T, config string) {
+func RunPendingBalanceDepositsTests(t *testing.T, config string) {
 	require.NoError(t, utils.SetConfig(t, config))
 
-	testFolders, testsFolderPath := utils.TestFolders(t, config, "electra", "epoch_processing/pending_deposits/pyspec_tests")
+	testFolders, testsFolderPath := utils.TestFolders(t, config, "electra", "epoch_processing/pending_balance_deposits/pyspec_tests")
 	for _, folder := range testFolders {
 		t.Run(folder.Name(), func(t *testing.T) {
 			folderPath := path.Join(testsFolderPath, folder.Name())
-			RunEpochOperationTest(t, folderPath, processPendingDeposits)
+			RunEpochOperationTest(t, folderPath, processPendingBalanceDeposits)
 		})
 	}
 }
 
-func processPendingDeposits(t *testing.T, st state.BeaconState) (state.BeaconState, error) {
+func processPendingBalanceDeposits(t *testing.T, st state.BeaconState) (state.BeaconState, error) {
 	// The caller of this method would normally have the precompute balance values for total
 	// active balance for this epoch. For ease of test setup, we will compute total active
 	// balance from the given state.
 	tab, err := helpers.TotalActiveBalance(st)
 	require.NoError(t, err)
-	return st, electra.ProcessPendingDeposits(context.TODO(), st, primitives.Gwei(tab))
+	return st, electra.ProcessPendingBalanceDeposits(context.TODO(), st, primitives.Gwei(tab))
 }

testing/spectest/shared/electra/ssz_static/ssz_static.go

@@ -141,8 +141,8 @@ func UnmarshalledSSZ(t *testing.T, serializedBytes []byte, folderName string) (i
 		obj = &ethpb.BLSToExecutionChange{}
 	case "SignedBLSToExecutionChange":
 		obj = &ethpb.SignedBLSToExecutionChange{}
-	case "PendingDeposit":
-		obj = &ethpb.PendingDeposit{}
+	case "PendingBalanceDeposit":
+		obj = &ethpb.PendingBalanceDeposit{}
 	case "PendingPartialWithdrawal":
 		obj = &ethpb.PendingPartialWithdrawal{}
 	case "PendingConsolidation":

testing/util/electra_state.go

@@ -209,7 +209,7 @@ func buildGenesisBeaconStateElectra(genesisTime uint64, preState state.BeaconSta
 		ExitBalanceToConsume:          helpers.ActivationExitChurnLimit(primitives.Gwei(tab)),
 		EarliestConsolidationEpoch:    helpers.ActivationExitEpoch(slots.ToEpoch(preState.Slot())),
 		ConsolidationBalanceToConsume: helpers.ConsolidationChurnLimit(primitives.Gwei(tab)),
-		PendingDeposits:               make([]*ethpb.PendingDeposit, 0),
+		PendingBalanceDeposits:        make([]*ethpb.PendingBalanceDeposit, 0),
 		PendingPartialWithdrawals:     make([]*ethpb.PendingPartialWithdrawal, 0),
 		PendingConsolidations:         make([]*ethpb.PendingConsolidation, 0),
 	}

testing/util/lightclient.go

@@ -456,6 +456,118 @@ func (l *TestLightClient) SetupTestDeneb(blinded bool) *TestLightClient {
 	return l
 }
 
+func (l *TestLightClient) SetupTestElectra(blinded bool) *TestLightClient {
+	ctx := context.Background()
+
+	slot := primitives.Slot(params.BeaconConfig().ElectraForkEpoch * primitives.Epoch(params.BeaconConfig().SlotsPerEpoch)).Add(1)
+
+	attestedState, err := NewBeaconStateElectra()
+	require.NoError(l.T, err)
+	err = attestedState.SetSlot(slot)
+	require.NoError(l.T, err)
+
+	finalizedBlock, err := blocks.NewSignedBeaconBlock(NewBeaconBlockElectra())
+	require.NoError(l.T, err)
+	finalizedBlock.SetSlot(1)
+	finalizedHeader, err := finalizedBlock.Header()
+	require.NoError(l.T, err)
+	finalizedRoot, err := finalizedHeader.Header.HashTreeRoot()
+	require.NoError(l.T, err)
+
+	require.NoError(l.T, attestedState.SetFinalizedCheckpoint(&ethpb.Checkpoint{
+		Epoch: params.BeaconConfig().ElectraForkEpoch - 10,
+		Root:  finalizedRoot[:],
+	}))
+
+	parent := NewBeaconBlockElectra()
+	parent.Block.Slot = slot
+
+	signedParent, err := blocks.NewSignedBeaconBlock(parent)
+	require.NoError(l.T, err)
+
+	parentHeader, err := signedParent.Header()
+	require.NoError(l.T, err)
+	attestedHeader := parentHeader.Header
+
+	err = attestedState.SetLatestBlockHeader(attestedHeader)
+	require.NoError(l.T, err)
+	attestedStateRoot, err := attestedState.HashTreeRoot(ctx)
+	require.NoError(l.T, err)
+
+	// get a new signed block so the root is updated with the new state root
+	parent.Block.StateRoot = attestedStateRoot[:]
+	signedParent, err = blocks.NewSignedBeaconBlock(parent)
+	require.NoError(l.T, err)
+
+	state, err := NewBeaconStateElectra()
+	require.NoError(l.T, err)
+	err = state.SetSlot(slot)
+	require.NoError(l.T, err)
+
+	parentRoot, err := signedParent.Block().HashTreeRoot()
+	require.NoError(l.T, err)
+
+	var signedBlock interfaces.SignedBeaconBlock
+	if blinded {
+		block := NewBlindedBeaconBlockElectra()
+		block.Message.Slot = slot
+		block.Message.ParentRoot = parentRoot[:]
+
+		for i := uint64(0); i < params.BeaconConfig().MinSyncCommitteeParticipants; i++ {
+			block.Message.Body.SyncAggregate.SyncCommitteeBits.SetBitAt(i, true)
+		}
+
+		signedBlock, err = blocks.NewSignedBeaconBlock(block)
+		require.NoError(l.T, err)
+
+		h, err := signedBlock.Header()
+		require.NoError(l.T, err)
+
+		err = state.SetLatestBlockHeader(h.Header)
+		require.NoError(l.T, err)
+		stateRoot, err := state.HashTreeRoot(ctx)
+		require.NoError(l.T, err)
+
+		// get a new signed block so the root is updated with the new state root
+		block.Message.StateRoot = stateRoot[:]
+		signedBlock, err = blocks.NewSignedBeaconBlock(block)
+		require.NoError(l.T, err)
+	} else {
+		block := NewBeaconBlockElectra()
+		block.Block.Slot = slot
+		block.Block.ParentRoot = parentRoot[:]
+
+		for i := uint64(0); i < params.BeaconConfig().MinSyncCommitteeParticipants; i++ {
+			block.Block.Body.SyncAggregate.SyncCommitteeBits.SetBitAt(i, true)
+		}
+
+		signedBlock, err = blocks.NewSignedBeaconBlock(block)
+		require.NoError(l.T, err)
+
+		h, err := signedBlock.Header()
+		require.NoError(l.T, err)
+
+		err = state.SetLatestBlockHeader(h.Header)
+		require.NoError(l.T, err)
+		stateRoot, err := state.HashTreeRoot(ctx)
+		require.NoError(l.T, err)
+
+		// get a new signed block so the root is updated with the new state root
+		block.Block.StateRoot = stateRoot[:]
+		signedBlock, err = blocks.NewSignedBeaconBlock(block)
+		require.NoError(l.T, err)
+	}
+
+	l.State = state
+	l.AttestedState = attestedState
+	l.AttestedBlock = signedParent
+	l.Block = signedBlock
+	l.Ctx = ctx
+	l.FinalizedBlock = finalizedBlock
+
+	return l
+}
+
 func (l *TestLightClient) SetupTestDenebFinalizedBlockCapella(blinded bool) *TestLightClient {
 	ctx := context.Background()
 

tools/pcli/main.go

@@ -70,7 +70,7 @@ var prettyCommand = &cli.Command{
 		case "block":
 			data = &ethpb.BeaconBlock{}
 		case "signed_block":
-			data = &ethpb.SignedBeaconBlock{}
+			data = &ethpb.SignedBeaconBlockElectra{}
 		case "blinded_block":
 			data = &ethpb.BlindedBeaconBlockBellatrix{}
 		case "attestation":
@@ -333,9 +333,7 @@ func detectState(fPath string) (state.BeaconState, error) {
 		return nil, err
 	}
 	vu, err := detect.FromState(rawFile)
-	if err != nil {
-		return nil, errors.Wrap(err, "error detecting state from file")
-	}
+	fmt.Println(err)
 	s, err := vu.UnmarshalBeaconState(rawFile)
 	if err != nil {
 		return nil, errors.Wrap(err, "error unmarshalling state")