From 4322185d80b19ce4878f3c3728ed1b632c505bdd Mon Sep 17 00:00:00 2001
From: Raul Jordan <raul@prysmaticlabs.com>
Date: Tue, 1 Feb 2022 22:30:35 -0500
Subject: [PATCH] Use Execution Payload Defined in Engine V1 Namespace (#10170)

* payload use

* incl

* cloners

* regen pb

* gen ssz

* use proper payload

* broken imports

* build

* state

* builds

* proper engine

* builds

* fmt

* baz

* ssz

* baz

* fmt

* regen ssz

* receipts root

* regen pb

* ssz

* receipts root

* ci lint

* proto

* test pkg

* bazel
---
 .github/workflows/go.yml                      |   2 +-
 beacon-chain/core/blocks/BUILD.bazel          |   2 +
 beacon-chain/core/blocks/payload.go           |  15 +-
 beacon-chain/core/blocks/payload_test.go      |  65 +-
 beacon-chain/core/transition/BUILD.bazel      |   1 +
 ...bellatrix_transition_no_verify_sig_test.go |   5 +-
 proto/engine/v1/BUILD.bazel                   |   4 +-
 proto/engine/v1/execution_engine.pb.go        | 187 ++--
 proto/engine/v1/execution_engine.proto        |   2 +-
 proto/engine/v1/generated.ssz.go              |  22 +-
 .../engine/v1/json_marshal_unmarshal_test.go  |  41 +-
 proto/eth/v2/BUILD.bazel                      |   3 +
 proto/eth/v2/beacon_block.pb.go               | 662 +++++-------
 proto/eth/v2/beacon_block.proto               |  23 +-
 proto/eth/v2/generated.ssz.go                 | 382 +------
 proto/prysm/v1alpha1/BUILD.bazel              |   5 +
 proto/prysm/v1alpha1/beacon_block.pb.go       | 942 +++++++-----------
 proto/prysm/v1alpha1/beacon_block.proto       |  21 +-
 proto/prysm/v1alpha1/block/BUILD.bazel        |   1 +
 .../prysm/v1alpha1/block/block_interfaces.go  |   3 +-
 proto/prysm/v1alpha1/cloners.go               |   7 +-
 proto/prysm/v1alpha1/cloners_test.go          |   7 +-
 proto/prysm/v1alpha1/generated.ssz.go         | 382 +------
 proto/prysm/v1alpha1/wrapper/BUILD.bazel      |   2 +
 proto/prysm/v1alpha1/wrapper/beacon_block.go  |   7 +-
 .../v1alpha1/wrapper/beacon_block_test.go     |   3 +-
 .../shared/bellatrix/ssz_static/BUILD.bazel   |   1 +
 .../shared/bellatrix/ssz_static/ssz_static.go |   3 +-
 testing/util/BUILD.bazel                      |   1 +
 testing/util/bellatrix_state.go               |   5 +-
 testing/util/block.go                         |   5 +-
 31 files changed, 829 insertions(+), 1982 deletions(-)

diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 20ec7b46fd..55d7bf0047 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Golangci-lint
         uses: golangci/golangci-lint-action@v2
         with:
-          args: --print-issued-lines --sort-results --no-config --timeout=10m --disable-all -E deadcode  -E errcheck -E gosimple --skip-files=validator/web/site_data.go
+          args: --print-issued-lines --sort-results --no-config --timeout=10m --disable-all -E deadcode  -E errcheck -E gosimple --skip-files=validator/web/site_data.go --skip-dirs=proto
 
   build:
     name: Build
diff --git a/beacon-chain/core/blocks/BUILD.bazel b/beacon-chain/core/blocks/BUILD.bazel
index 8611cbf273..4a1336d9c9 100644
--- a/beacon-chain/core/blocks/BUILD.bazel
+++ b/beacon-chain/core/blocks/BUILD.bazel
@@ -40,6 +40,7 @@ go_library(
         "//encoding/ssz:go_default_library",
         "//math:go_default_library",
         "//network/forks:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/attestation:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
@@ -91,6 +92,7 @@ go_test(
         "//crypto/bls:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//encoding/ssz:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/attestation:go_default_library",
         "//proto/prysm/v1alpha1/attestation/aggregation:go_default_library",
diff --git a/beacon-chain/core/blocks/payload.go b/beacon-chain/core/blocks/payload.go
index 9b319510ae..2b2695b30f 100644
--- a/beacon-chain/core/blocks/payload.go
+++ b/beacon-chain/core/blocks/payload.go
@@ -10,6 +10,7 @@ import (
 	fieldparams "github.com/prysmaticlabs/prysm/config/fieldparams"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
 	"github.com/prysmaticlabs/prysm/encoding/ssz"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/time/slots"
@@ -77,7 +78,7 @@ func ExecutionEnabled(st state.BeaconState, blk block.BeaconBlockBody) (bool, er
 //    # Verify consistency of the parent hash with respect to the previous execution payload header
 //    if is_merge_complete(state):
 //        assert payload.parent_hash == state.latest_execution_payload_header.block_hash
-func ValidatePayloadWhenMergeCompletes(st state.BeaconState, payload *ethpb.ExecutionPayload) error {
+func ValidatePayloadWhenMergeCompletes(st state.BeaconState, payload *enginev1.ExecutionPayload) error {
 	complete, err := MergeComplete(st)
 	if err != nil {
 		return err
@@ -104,7 +105,7 @@ func ValidatePayloadWhenMergeCompletes(st state.BeaconState, payload *ethpb.Exec
 //    assert payload.random == get_randao_mix(state, get_current_epoch(state))
 //    # Verify timestamp
 //    assert payload.timestamp == compute_timestamp_at_slot(state, state.slot)
-func ValidatePayload(st state.BeaconState, payload *ethpb.ExecutionPayload) error {
+func ValidatePayload(st state.BeaconState, payload *enginev1.ExecutionPayload) error {
 	random, err := helpers.RandaoMix(st, time.CurrentEpoch(st))
 	if err != nil {
 		return err
@@ -155,7 +156,7 @@ func ValidatePayload(st state.BeaconState, payload *ethpb.ExecutionPayload) erro
 //        block_hash=payload.block_hash,
 //        transactions_root=hash_tree_root(payload.transactions),
 //    )
-func ProcessPayload(st state.BeaconState, payload *ethpb.ExecutionPayload) (state.BeaconState, error) {
+func ProcessPayload(st state.BeaconState, payload *enginev1.ExecutionPayload) (state.BeaconState, error) {
 	if err := ValidatePayloadWhenMergeCompletes(st, payload); err != nil {
 		return nil, err
 	}
@@ -175,7 +176,7 @@ func ProcessPayload(st state.BeaconState, payload *ethpb.ExecutionPayload) (stat
 }
 
 // PayloadToHeader converts `payload` into execution payload header format.
-func PayloadToHeader(payload *ethpb.ExecutionPayload) (*ethpb.ExecutionPayloadHeader, error) {
+func PayloadToHeader(payload *enginev1.ExecutionPayload) (*ethpb.ExecutionPayloadHeader, error) {
 	txRoot, err := ssz.TransactionsRoot(payload.Transactions)
 	if err != nil {
 		return nil, err
@@ -185,7 +186,7 @@ func PayloadToHeader(payload *ethpb.ExecutionPayload) (*ethpb.ExecutionPayloadHe
 		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
 		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
 		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptRoot:      bytesutil.SafeCopyBytes(payload.ReceiptRoot),
+		ReceiptRoot:      bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
 		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
 		Random:           bytesutil.SafeCopyBytes(payload.Random),
 		BlockNumber:      payload.BlockNumber,
@@ -199,7 +200,7 @@ func PayloadToHeader(payload *ethpb.ExecutionPayload) (*ethpb.ExecutionPayloadHe
 	}, nil
 }
 
-func isEmptyPayload(p *ethpb.ExecutionPayload) bool {
+func isEmptyPayload(p *enginev1.ExecutionPayload) bool {
 	if !bytes.Equal(p.ParentHash, make([]byte, fieldparams.RootLength)) {
 		return false
 	}
@@ -209,7 +210,7 @@ func isEmptyPayload(p *ethpb.ExecutionPayload) bool {
 	if !bytes.Equal(p.StateRoot, make([]byte, fieldparams.RootLength)) {
 		return false
 	}
-	if !bytes.Equal(p.ReceiptRoot, make([]byte, fieldparams.RootLength)) {
+	if !bytes.Equal(p.ReceiptsRoot, make([]byte, fieldparams.RootLength)) {
 		return false
 	}
 	if !bytes.Equal(p.LogsBloom, make([]byte, fieldparams.LogsBloomLength)) {
diff --git a/beacon-chain/core/blocks/payload_test.go b/beacon-chain/core/blocks/payload_test.go
index 89946e279f..335d7f43e3 100644
--- a/beacon-chain/core/blocks/payload_test.go
+++ b/beacon-chain/core/blocks/payload_test.go
@@ -10,6 +10,7 @@ import (
 	fieldparams "github.com/prysmaticlabs/prysm/config/fieldparams"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
 	"github.com/prysmaticlabs/prysm/encoding/ssz"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/testing/require"
@@ -171,7 +172,7 @@ func Test_MergeComplete(t *testing.T) {
 func Test_MergeBlock(t *testing.T) {
 	tests := []struct {
 		name    string
-		payload *ethpb.ExecutionPayload
+		payload *enginev1.ExecutionPayload
 		header  *ethpb.ExecutionPayloadHeader
 		want    bool
 	}{
@@ -193,7 +194,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has parent hash",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.ParentHash = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -203,7 +204,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has fee recipient",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.FeeRecipient = bytesutil.PadTo([]byte{'a'}, fieldparams.FeeRecipientLength)
 				return p
@@ -213,7 +214,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has state root",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.StateRoot = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -223,9 +224,9 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has receipt root",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
-				p.ReceiptRoot = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
+				p.ReceiptsRoot = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
 			}(),
 			header: emptyPayloadHeader(),
@@ -233,7 +234,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has logs bloom",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.LogsBloom = bytesutil.PadTo([]byte{'a'}, fieldparams.LogsBloomLength)
 				return p
@@ -243,7 +244,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has random",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.Random = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -253,7 +254,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has base fee",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.BaseFeePerGas = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -263,7 +264,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has block hash",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.BlockHash = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -273,7 +274,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has tx",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.Transactions = [][]byte{{'a'}}
 				return p
@@ -283,7 +284,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has extra data",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.ExtraData = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -293,7 +294,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has block number",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.BlockNumber = 1
 				return p
@@ -303,7 +304,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has gas limit",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.GasLimit = 1
 				return p
@@ -313,7 +314,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has gas used",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.GasUsed = 1
 				return p
@@ -323,7 +324,7 @@ func Test_MergeBlock(t *testing.T) {
 		},
 		{
 			name: "empty header, payload has timestamp",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.Timestamp = 1
 				return p
@@ -352,7 +353,7 @@ func Test_MergeBlock(t *testing.T) {
 func Test_ExecutionEnabled(t *testing.T) {
 	tests := []struct {
 		name    string
-		payload *ethpb.ExecutionPayload
+		payload *enginev1.ExecutionPayload
 		header  *ethpb.ExecutionPayloadHeader
 		want    bool
 	}{
@@ -375,7 +376,7 @@ func Test_ExecutionEnabled(t *testing.T) {
 		{
 			name:   "empty header, non-empty payload",
 			header: emptyPayloadHeader(),
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.Timestamp = 1
 				return p
@@ -389,7 +390,7 @@ func Test_ExecutionEnabled(t *testing.T) {
 				h.ParentHash = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return h
 			}(),
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.Timestamp = 1
 				return p
@@ -417,7 +418,7 @@ func Test_ExecutionEnabled(t *testing.T) {
 func Test_ValidatePayloadWhenMergeCompletes(t *testing.T) {
 	tests := []struct {
 		name    string
-		payload *ethpb.ExecutionPayload
+		payload *enginev1.ExecutionPayload
 		header  *ethpb.ExecutionPayloadHeader
 		err     error
 	}{
@@ -429,7 +430,7 @@ func Test_ValidatePayloadWhenMergeCompletes(t *testing.T) {
 		},
 		{
 			name: "validate passes",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.ParentHash = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -443,7 +444,7 @@ func Test_ValidatePayloadWhenMergeCompletes(t *testing.T) {
 		},
 		{
 			name: "incorrect blockhash",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				p := emptyPayload()
 				p.ParentHash = bytesutil.PadTo([]byte{'a'}, fieldparams.RootLength)
 				return p
@@ -478,12 +479,12 @@ func Test_ValidatePayload(t *testing.T) {
 	require.NoError(t, err)
 	tests := []struct {
 		name    string
-		payload *ethpb.ExecutionPayload
+		payload *enginev1.ExecutionPayload
 		err     error
 	}{
 		{
 			name: "validate passes",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				h := emptyPayload()
 				h.Random = random
 				h.Timestamp = uint64(ts.Unix())
@@ -497,7 +498,7 @@ func Test_ValidatePayload(t *testing.T) {
 		},
 		{
 			name: "incorrect timestamp",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				h := emptyPayload()
 				h.Random = random
 				h.Timestamp = 1
@@ -526,12 +527,12 @@ func Test_ProcessPayload(t *testing.T) {
 	require.NoError(t, err)
 	tests := []struct {
 		name    string
-		payload *ethpb.ExecutionPayload
+		payload *enginev1.ExecutionPayload
 		err     error
 	}{
 		{
 			name: "process passes",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				h := emptyPayload()
 				h.Random = random
 				h.Timestamp = uint64(ts.Unix())
@@ -545,7 +546,7 @@ func Test_ProcessPayload(t *testing.T) {
 		},
 		{
 			name: "incorrect timestamp",
-			payload: func() *ethpb.ExecutionPayload {
+			payload: func() *enginev1.ExecutionPayload {
 				h := emptyPayload()
 				h.Random = random
 				h.Timestamp = 1
@@ -584,7 +585,7 @@ func Test_PayloadToHeader(t *testing.T) {
 	p.ParentHash = b
 	p.FeeRecipient = b
 	p.StateRoot = b
-	p.ReceiptRoot = b
+	p.ReceiptsRoot = b
 	p.LogsBloom = b
 	p.Random = b
 	p.ExtraData = b
@@ -636,12 +637,12 @@ func emptyPayloadHeader() *ethpb.ExecutionPayloadHeader {
 	}
 }
 
-func emptyPayload() *ethpb.ExecutionPayload {
-	return &ethpb.ExecutionPayload{
+func emptyPayload() *enginev1.ExecutionPayload {
+	return &enginev1.ExecutionPayload{
 		ParentHash:    make([]byte, fieldparams.RootLength),
 		FeeRecipient:  make([]byte, fieldparams.FeeRecipientLength),
 		StateRoot:     make([]byte, fieldparams.RootLength),
-		ReceiptRoot:   make([]byte, fieldparams.RootLength),
+		ReceiptsRoot:  make([]byte, fieldparams.RootLength),
 		LogsBloom:     make([]byte, fieldparams.LogsBloomLength),
 		Random:        make([]byte, fieldparams.RootLength),
 		BaseFeePerGas: make([]byte, fieldparams.RootLength),
diff --git a/beacon-chain/core/transition/BUILD.bazel b/beacon-chain/core/transition/BUILD.bazel
index 4dfe8c82ad..142bb503f0 100644
--- a/beacon-chain/core/transition/BUILD.bazel
+++ b/beacon-chain/core/transition/BUILD.bazel
@@ -88,6 +88,7 @@ go_test(
         "//crypto/bls:go_default_library",
         "//crypto/hash:go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/attestation:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
diff --git a/beacon-chain/core/transition/bellatrix_transition_no_verify_sig_test.go b/beacon-chain/core/transition/bellatrix_transition_no_verify_sig_test.go
index 07bed73859..194ea7e249 100644
--- a/beacon-chain/core/transition/bellatrix_transition_no_verify_sig_test.go
+++ b/beacon-chain/core/transition/bellatrix_transition_no_verify_sig_test.go
@@ -17,6 +17,7 @@ import (
 	"github.com/prysmaticlabs/prysm/config/params"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/testing/assert"
@@ -237,11 +238,11 @@ func createFullBellatrixBlockWithOperations(t *testing.T) (state.BeaconState,
 				Deposits:          altairBlk.Block.Body.Deposits,
 				VoluntaryExits:    altairBlk.Block.Body.VoluntaryExits,
 				SyncAggregate:     altairBlk.Block.Body.SyncAggregate,
-				ExecutionPayload: &ethpb.ExecutionPayload{
+				ExecutionPayload: &enginev1.ExecutionPayload{
 					ParentHash:    make([]byte, fieldparams.RootLength),
 					FeeRecipient:  make([]byte, fieldparams.FeeRecipientLength),
 					StateRoot:     make([]byte, fieldparams.RootLength),
-					ReceiptRoot:   make([]byte, fieldparams.RootLength),
+					ReceiptsRoot:  make([]byte, fieldparams.RootLength),
 					LogsBloom:     make([]byte, fieldparams.LogsBloomLength),
 					Random:        make([]byte, fieldparams.RootLength),
 					BaseFeePerGas: make([]byte, fieldparams.RootLength),
diff --git a/proto/engine/v1/BUILD.bazel b/proto/engine/v1/BUILD.bazel
index 14e209e137..fc81c491a6 100644
--- a/proto/engine/v1/BUILD.bazel
+++ b/proto/engine/v1/BUILD.bazel
@@ -85,8 +85,8 @@ go_test(
         "json_marshal_unmarshal_test.go",
     ],
     deps = [
+        ":go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//testing/require:go_default_library",
-	],
-    embed = [":go_default_library"],
+    ],
 )
diff --git a/proto/engine/v1/execution_engine.pb.go b/proto/engine/v1/execution_engine.pb.go
index d06f31ea63..9de2e18701 100755
--- a/proto/engine/v1/execution_engine.pb.go
+++ b/proto/engine/v1/execution_engine.pb.go
@@ -85,20 +85,20 @@ type ExecutionPayload struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	ParentHash     []byte   `protobuf:"bytes,1,opt,name=parent_hash,json=parentHash,proto3" json:"parent_hash,omitempty" ssz-size:"32"`
-	FeeRecipient   []byte   `protobuf:"bytes,2,opt,name=fee_recipient,json=feeRecipient,proto3" json:"fee_recipient,omitempty" ssz-size:"20"`
-	StateRoot      []byte   `protobuf:"bytes,3,opt,name=state_root,json=stateRoot,proto3" json:"state_root,omitempty" ssz-size:"32"`
-	RecipientsRoot []byte   `protobuf:"bytes,4,opt,name=recipients_root,json=recipientsRoot,proto3" json:"recipients_root,omitempty" ssz-size:"32"`
-	LogsBloom      []byte   `protobuf:"bytes,5,opt,name=logs_bloom,json=logsBloom,proto3" json:"logs_bloom,omitempty" ssz-size:"256"`
-	Random         []byte   `protobuf:"bytes,6,opt,name=random,proto3" json:"random,omitempty" ssz-size:"32"`
-	BlockNumber    uint64   `protobuf:"varint,7,opt,name=block_number,json=blockNumber,proto3" json:"block_number,omitempty"`
-	GasLimit       uint64   `protobuf:"varint,8,opt,name=gas_limit,json=gasLimit,proto3" json:"gas_limit,omitempty"`
-	GasUsed        uint64   `protobuf:"varint,9,opt,name=gas_used,json=gasUsed,proto3" json:"gas_used,omitempty"`
-	Timestamp      uint64   `protobuf:"varint,10,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
-	ExtraData      []byte   `protobuf:"bytes,11,opt,name=extra_data,json=extraData,proto3" json:"extra_data,omitempty" ssz-max:"32"`
-	BaseFeePerGas  []byte   `protobuf:"bytes,12,opt,name=base_fee_per_gas,json=baseFeePerGas,proto3" json:"base_fee_per_gas,omitempty" ssz-size:"32"`
-	BlockHash      []byte   `protobuf:"bytes,13,opt,name=block_hash,json=blockHash,proto3" json:"block_hash,omitempty" ssz-size:"32"`
-	Transactions   [][]byte `protobuf:"bytes,14,rep,name=transactions,proto3" json:"transactions,omitempty" ssz-max:"1048576,1073741824" ssz-size:"?,?"`
+	ParentHash    []byte   `protobuf:"bytes,1,opt,name=parent_hash,json=parentHash,proto3" json:"parent_hash,omitempty" ssz-size:"32"`
+	FeeRecipient  []byte   `protobuf:"bytes,2,opt,name=fee_recipient,json=feeRecipient,proto3" json:"fee_recipient,omitempty" ssz-size:"20"`
+	StateRoot     []byte   `protobuf:"bytes,3,opt,name=state_root,json=stateRoot,proto3" json:"state_root,omitempty" ssz-size:"32"`
+	ReceiptsRoot  []byte   `protobuf:"bytes,4,opt,name=receipts_root,json=receiptsRoot,proto3" json:"receipts_root,omitempty" ssz-size:"32"`
+	LogsBloom     []byte   `protobuf:"bytes,5,opt,name=logs_bloom,json=logsBloom,proto3" json:"logs_bloom,omitempty" ssz-size:"256"`
+	Random        []byte   `protobuf:"bytes,6,opt,name=random,proto3" json:"random,omitempty" ssz-size:"32"`
+	BlockNumber   uint64   `protobuf:"varint,7,opt,name=block_number,json=blockNumber,proto3" json:"block_number,omitempty"`
+	GasLimit      uint64   `protobuf:"varint,8,opt,name=gas_limit,json=gasLimit,proto3" json:"gas_limit,omitempty"`
+	GasUsed       uint64   `protobuf:"varint,9,opt,name=gas_used,json=gasUsed,proto3" json:"gas_used,omitempty"`
+	Timestamp     uint64   `protobuf:"varint,10,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	ExtraData     []byte   `protobuf:"bytes,11,opt,name=extra_data,json=extraData,proto3" json:"extra_data,omitempty" ssz-max:"32"`
+	BaseFeePerGas []byte   `protobuf:"bytes,12,opt,name=base_fee_per_gas,json=baseFeePerGas,proto3" json:"base_fee_per_gas,omitempty" ssz-size:"32"`
+	BlockHash     []byte   `protobuf:"bytes,13,opt,name=block_hash,json=blockHash,proto3" json:"block_hash,omitempty" ssz-size:"32"`
+	Transactions  [][]byte `protobuf:"bytes,14,rep,name=transactions,proto3" json:"transactions,omitempty" ssz-max:"1048576,1073741824" ssz-size:"?,?"`
 }
 
 func (x *ExecutionPayload) Reset() {
@@ -154,9 +154,9 @@ func (x *ExecutionPayload) GetStateRoot() []byte {
 	return nil
 }
 
-func (x *ExecutionPayload) GetRecipientsRoot() []byte {
+func (x *ExecutionPayload) GetReceiptsRoot() []byte {
 	if x != nil {
-		return x.RecipientsRoot
+		return x.ReceiptsRoot
 	}
 	return nil
 }
@@ -428,7 +428,7 @@ var file_proto_engine_v1_execution_engine_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/proto/engine/v1/execution_engine.proto b/proto/engine/v1/execution_engine.proto
index 8b3c46aab8..40a92eef9a 100644
--- a/proto/engine/v1/execution_engine.proto
+++ b/proto/engine/v1/execution_engine.proto
@@ -28,7 +28,7 @@ message ExecutionPayload {
 	bytes parent_hash           = 1 [(ethereum.eth.ext.ssz_size) = "32"];
 	bytes fee_recipient         = 2 [(ethereum.eth.ext.ssz_size) = "20"];
 	bytes state_root            = 3 [(ethereum.eth.ext.ssz_size) = "32"];
-	bytes recipients_root       = 4 [(ethereum.eth.ext.ssz_size) = "32"];
+	bytes receipts_root         = 4 [(ethereum.eth.ext.ssz_size) = "32"];
 	bytes logs_bloom            = 5 [(ethereum.eth.ext.ssz_size) = "256"];
 	bytes random                = 6 [(ethereum.eth.ext.ssz_size) = "32"];
 	uint64 block_number         = 7;
diff --git a/proto/engine/v1/generated.ssz.go b/proto/engine/v1/generated.ssz.go
index 200c3e10c6..bce047235b 100755
--- a/proto/engine/v1/generated.ssz.go
+++ b/proto/engine/v1/generated.ssz.go
@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: e694201808b1e0069a274c88e1977511c2e47a735af15f5dcda9ead3d115608d
+// Hash: 1786ca114ebca73885d43bbe86c5e33b0a4c2f43f8289530ed8036b9df46cb3a
 package enginev1
 
 import (
@@ -37,12 +37,12 @@ func (e *ExecutionPayload) MarshalSSZTo(buf []byte) (dst []byte, err error) {
 	}
 	dst = append(dst, e.StateRoot...)
 
-	// Field (3) 'RecipientsRoot'
-	if len(e.RecipientsRoot) != 32 {
+	// Field (3) 'ReceiptsRoot'
+	if len(e.ReceiptsRoot) != 32 {
 		err = ssz.ErrBytesLength
 		return
 	}
-	dst = append(dst, e.RecipientsRoot...)
+	dst = append(dst, e.ReceiptsRoot...)
 
 	// Field (4) 'LogsBloom'
 	if len(e.LogsBloom) != 256 {
@@ -154,11 +154,11 @@ func (e *ExecutionPayload) UnmarshalSSZ(buf []byte) error {
 	}
 	e.StateRoot = append(e.StateRoot, buf[52:84]...)
 
-	// Field (3) 'RecipientsRoot'
-	if cap(e.RecipientsRoot) == 0 {
-		e.RecipientsRoot = make([]byte, 0, len(buf[84:116]))
+	// Field (3) 'ReceiptsRoot'
+	if cap(e.ReceiptsRoot) == 0 {
+		e.ReceiptsRoot = make([]byte, 0, len(buf[84:116]))
 	}
-	e.RecipientsRoot = append(e.RecipientsRoot, buf[84:116]...)
+	e.ReceiptsRoot = append(e.ReceiptsRoot, buf[84:116]...)
 
 	// Field (4) 'LogsBloom'
 	if cap(e.LogsBloom) == 0 {
@@ -293,12 +293,12 @@ func (e *ExecutionPayload) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	}
 	hh.PutBytes(e.StateRoot)
 
-	// Field (3) 'RecipientsRoot'
-	if len(e.RecipientsRoot) != 32 {
+	// Field (3) 'ReceiptsRoot'
+	if len(e.ReceiptsRoot) != 32 {
 		err = ssz.ErrBytesLength
 		return
 	}
-	hh.PutBytes(e.RecipientsRoot)
+	hh.PutBytes(e.ReceiptsRoot)
 
 	// Field (4) 'LogsBloom'
 	if len(e.LogsBloom) != 256 {
diff --git a/proto/engine/v1/json_marshal_unmarshal_test.go b/proto/engine/v1/json_marshal_unmarshal_test.go
index a0cee64fac..6a53904ab0 100644
--- a/proto/engine/v1/json_marshal_unmarshal_test.go
+++ b/proto/engine/v1/json_marshal_unmarshal_test.go
@@ -1,10 +1,11 @@
-package enginev1
+package enginev1_test
 
 import (
 	"encoding/json"
 	"testing"
 
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	"github.com/prysmaticlabs/prysm/testing/require"
 )
 
@@ -20,7 +21,7 @@ func TestJsonMarshalUnmarshal(t *testing.T) {
 		}
 		enc, err := json.Marshal(jsonPayload)
 		require.NoError(t, err)
-		payloadPb := &PayloadAttributes{}
+		payloadPb := &enginev1.PayloadAttributes{}
 		require.NoError(t, json.Unmarshal(enc, payloadPb))
 		require.DeepEqual(t, uint64(1), payloadPb.Timestamp)
 		require.DeepEqual(t, foo[:], payloadPb.Random)
@@ -34,7 +35,7 @@ func TestJsonMarshalUnmarshal(t *testing.T) {
 		}
 		enc, err := json.Marshal(jsonPayload)
 		require.NoError(t, err)
-		payloadPb := &PayloadStatus{}
+		payloadPb := &enginev1.PayloadStatus{}
 		require.NoError(t, json.Unmarshal(enc, payloadPb))
 		require.DeepEqual(t, "INVALID", payloadPb.Status.String())
 		require.DeepEqual(t, foo[:], payloadPb.LatestValidHash)
@@ -48,7 +49,7 @@ func TestJsonMarshalUnmarshal(t *testing.T) {
 		}
 		enc, err := json.Marshal(jsonPayload)
 		require.NoError(t, err)
-		payloadPb := &ForkchoiceState{}
+		payloadPb := &enginev1.ForkchoiceState{}
 		require.NoError(t, json.Unmarshal(enc, payloadPb))
 		require.DeepEqual(t, foo[:], payloadPb.HeadBlockHash)
 		require.DeepEqual(t, foo[:], payloadPb.SafeBlockHash)
@@ -56,29 +57,29 @@ func TestJsonMarshalUnmarshal(t *testing.T) {
 	})
 	t.Run("execution payload", func(t *testing.T) {
 		jsonPayload := map[string]interface{}{
-			"parentHash":     foo[:],
-			"feeRecipient":   bar,
-			"stateRoot":      foo[:],
-			"recipientsRoot": foo[:],
-			"logsBloom":      baz,
-			"random":         foo[:],
-			"blockNumber":    1,
-			"gasLimit":       1,
-			"gasUsed":        1,
-			"timestamp":      1,
-			"extraData":      foo[:],
-			"baseFeePerGas":  foo[:],
-			"blockHash":      foo[:],
-			"transactions":   [][]byte{foo[:]},
+			"parentHash":    foo[:],
+			"feeRecipient":  bar,
+			"stateRoot":     foo[:],
+			"receiptsRoot":  foo[:],
+			"logsBloom":     baz,
+			"random":        foo[:],
+			"blockNumber":   1,
+			"gasLimit":      1,
+			"gasUsed":       1,
+			"timestamp":     1,
+			"extraData":     foo[:],
+			"baseFeePerGas": foo[:],
+			"blockHash":     foo[:],
+			"transactions":  [][]byte{foo[:]},
 		}
 		enc, err := json.Marshal(jsonPayload)
 		require.NoError(t, err)
-		payloadPb := &ExecutionPayload{}
+		payloadPb := &enginev1.ExecutionPayload{}
 		require.NoError(t, json.Unmarshal(enc, payloadPb))
 		require.DeepEqual(t, foo[:], payloadPb.ParentHash)
 		require.DeepEqual(t, bar, payloadPb.FeeRecipient)
 		require.DeepEqual(t, foo[:], payloadPb.StateRoot)
-		require.DeepEqual(t, foo[:], payloadPb.RecipientsRoot)
+		require.DeepEqual(t, foo[:], payloadPb.ReceiptsRoot)
 		require.DeepEqual(t, baz, payloadPb.LogsBloom)
 		require.DeepEqual(t, foo[:], payloadPb.Random)
 		require.DeepEqual(t, uint64(1), payloadPb.BlockNumber)
diff --git a/proto/eth/v2/BUILD.bazel b/proto/eth/v2/BUILD.bazel
index 389e2d8725..1ee26bcab7 100644
--- a/proto/eth/v2/BUILD.bazel
+++ b/proto/eth/v2/BUILD.bazel
@@ -16,6 +16,7 @@ proto_library(
     deps = [
         "//proto/eth/ext:proto",
         "//proto/eth/v1:proto",
+        "//proto/engine/v1:proto",
     ],
 )
 
@@ -32,6 +33,7 @@ ssz_gen_marshal(
     go_proto = ":go_proto",
     includes = [
         "//proto/eth/v1:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",
     ],
     objs = [
@@ -51,6 +53,7 @@ go_proto_library(
     deps = [
         "//proto/eth/ext:go_default_library",
         "//proto/eth/v1:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",
         "@com_github_golang_protobuf//proto:go_default_library",
diff --git a/proto/eth/v2/beacon_block.pb.go b/proto/eth/v2/beacon_block.pb.go
index b858b1437e..75b831dd96 100755
--- a/proto/eth/v2/beacon_block.pb.go
+++ b/proto/eth/v2/beacon_block.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.27.1
 // 	protoc        v3.15.8
 // source: proto/eth/v2/beacon_block.proto
 
@@ -10,8 +10,8 @@ import (
 	reflect "reflect"
 	sync "sync"
 
-	proto "github.com/golang/protobuf/proto"
 	github_com_prysmaticlabs_eth2_types "github.com/prysmaticlabs/eth2-types"
+	v11 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	_ "github.com/prysmaticlabs/prysm/proto/eth/ext"
 	v1 "github.com/prysmaticlabs/prysm/proto/eth/v1"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -25,10 +25,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type BlockRequestV2 struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -664,7 +660,7 @@ type BeaconBlockBodyBellatrix struct {
 	Deposits          []*v1.Deposit             `protobuf:"bytes,7,rep,name=deposits,proto3" json:"deposits,omitempty" ssz-max:"16"`
 	VoluntaryExits    []*v1.SignedVoluntaryExit `protobuf:"bytes,8,rep,name=voluntary_exits,json=voluntaryExits,proto3" json:"voluntary_exits,omitempty" ssz-max:"16"`
 	SyncAggregate     *v1.SyncAggregate         `protobuf:"bytes,9,opt,name=sync_aggregate,json=syncAggregate,proto3" json:"sync_aggregate,omitempty"`
-	ExecutionPayload  *ExecutionPayload         `protobuf:"bytes,10,opt,name=execution_payload,json=executionPayload,proto3" json:"execution_payload,omitempty"`
+	ExecutionPayload  *v11.ExecutionPayload     `protobuf:"bytes,10,opt,name=execution_payload,json=executionPayload,proto3" json:"execution_payload,omitempty"`
 }
 
 func (x *BeaconBlockBodyBellatrix) Reset() {
@@ -762,164 +758,13 @@ func (x *BeaconBlockBodyBellatrix) GetSyncAggregate() *v1.SyncAggregate {
 	return nil
 }
 
-func (x *BeaconBlockBodyBellatrix) GetExecutionPayload() *ExecutionPayload {
+func (x *BeaconBlockBodyBellatrix) GetExecutionPayload() *v11.ExecutionPayload {
 	if x != nil {
 		return x.ExecutionPayload
 	}
 	return nil
 }
 
-type ExecutionPayload struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	ParentHash    []byte   `protobuf:"bytes,1,opt,name=parent_hash,json=parentHash,proto3" json:"parent_hash,omitempty" ssz-size:"32"`
-	Coinbase      []byte   `protobuf:"bytes,2,opt,name=coinbase,proto3" json:"coinbase,omitempty" ssz-size:"20"`
-	StateRoot     []byte   `protobuf:"bytes,3,opt,name=state_root,json=stateRoot,proto3" json:"state_root,omitempty" ssz-size:"32"`
-	ReceiptRoot   []byte   `protobuf:"bytes,4,opt,name=receipt_root,json=receiptRoot,proto3" json:"receipt_root,omitempty" ssz-size:"32"`
-	LogsBloom     []byte   `protobuf:"bytes,5,opt,name=logs_bloom,json=logsBloom,proto3" json:"logs_bloom,omitempty" ssz-size:"256"`
-	Random        []byte   `protobuf:"bytes,6,opt,name=random,proto3" json:"random,omitempty" ssz-size:"32"`
-	BlockNumber   uint64   `protobuf:"varint,7,opt,name=block_number,json=blockNumber,proto3" json:"block_number,omitempty"`
-	GasLimit      uint64   `protobuf:"varint,8,opt,name=gas_limit,json=gasLimit,proto3" json:"gas_limit,omitempty"`
-	GasUsed       uint64   `protobuf:"varint,9,opt,name=gas_used,json=gasUsed,proto3" json:"gas_used,omitempty"`
-	Timestamp     uint64   `protobuf:"varint,10,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
-	ExtraData     []byte   `protobuf:"bytes,11,opt,name=extra_data,json=extraData,proto3" json:"extra_data,omitempty" ssz-max:"32"`
-	BaseFeePerGas []byte   `protobuf:"bytes,12,opt,name=base_fee_per_gas,json=baseFeePerGas,proto3" json:"base_fee_per_gas,omitempty" ssz-size:"32"`
-	BlockHash     []byte   `protobuf:"bytes,13,opt,name=block_hash,json=blockHash,proto3" json:"block_hash,omitempty" ssz-size:"32"`
-	Transactions  [][]byte `protobuf:"bytes,14,rep,name=transactions,proto3" json:"transactions,omitempty" ssz-max:"1048576,1073741824" ssz-size:"?,?"`
-}
-
-func (x *ExecutionPayload) Reset() {
-	*x = ExecutionPayload{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[10]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ExecutionPayload) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ExecutionPayload) ProtoMessage() {}
-
-func (x *ExecutionPayload) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[10]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ExecutionPayload.ProtoReflect.Descriptor instead.
-func (*ExecutionPayload) Descriptor() ([]byte, []int) {
-	return file_proto_eth_v2_beacon_block_proto_rawDescGZIP(), []int{10}
-}
-
-func (x *ExecutionPayload) GetParentHash() []byte {
-	if x != nil {
-		return x.ParentHash
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetCoinbase() []byte {
-	if x != nil {
-		return x.Coinbase
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetStateRoot() []byte {
-	if x != nil {
-		return x.StateRoot
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetReceiptRoot() []byte {
-	if x != nil {
-		return x.ReceiptRoot
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetLogsBloom() []byte {
-	if x != nil {
-		return x.LogsBloom
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetRandom() []byte {
-	if x != nil {
-		return x.Random
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBlockNumber() uint64 {
-	if x != nil {
-		return x.BlockNumber
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetGasLimit() uint64 {
-	if x != nil {
-		return x.GasLimit
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetGasUsed() uint64 {
-	if x != nil {
-		return x.GasUsed
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetTimestamp() uint64 {
-	if x != nil {
-		return x.Timestamp
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetExtraData() []byte {
-	if x != nil {
-		return x.ExtraData
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBaseFeePerGas() []byte {
-	if x != nil {
-		return x.BaseFeePerGas
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBlockHash() []byte {
-	if x != nil {
-		return x.BlockHash
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetTransactions() [][]byte {
-	if x != nil {
-		return x.Transactions
-	}
-	return nil
-}
-
 type BeaconBlockBodyAltair struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -939,7 +784,7 @@ type BeaconBlockBodyAltair struct {
 func (x *BeaconBlockBodyAltair) Reset() {
 	*x = BeaconBlockBodyAltair{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[11]
+		mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -952,7 +797,7 @@ func (x *BeaconBlockBodyAltair) String() string {
 func (*BeaconBlockBodyAltair) ProtoMessage() {}
 
 func (x *BeaconBlockBodyAltair) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[11]
+	mi := &file_proto_eth_v2_beacon_block_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -965,7 +810,7 @@ func (x *BeaconBlockBodyAltair) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BeaconBlockBodyAltair.ProtoReflect.Descriptor instead.
 func (*BeaconBlockBodyAltair) Descriptor() ([]byte, []int) {
-	return file_proto_eth_v2_beacon_block_proto_rawDescGZIP(), []int{11}
+	return file_proto_eth_v2_beacon_block_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *BeaconBlockBodyAltair) GetRandaoReveal() []byte {
@@ -1044,41 +889,27 @@ var file_proto_eth_v2_beacon_block_proto_rawDesc = []byte{
 	0x1f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x65, 0x74, 0x68, 0x2f, 0x76, 0x31, 0x2f, 0x62, 0x65,
 	0x61, 0x63, 0x6f, 0x6e, 0x5f, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
 	0x1a, 0x1a, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x65, 0x74, 0x68, 0x2f, 0x76, 0x32, 0x2f, 0x76,
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@@ -1094,196 +925,177 @@ var file_proto_eth_v2_beacon_block_proto_rawDesc = []byte{
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+	0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x41,
+	0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x07, 0x92, 0xb5, 0x18, 0x03,
+	0x31, 0x32, 0x38, 0x52, 0x0c, 0x61, 0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e,
+	0x73, 0x12, 0x3c, 0x0a, 0x08, 0x64, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x73, 0x18, 0x07, 0x20,
+	0x03, 0x28, 0x0b, 0x32, 0x18, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65,
+	0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x44, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x42, 0x06, 0x92,
+	0xb5, 0x18, 0x02, 0x31, 0x36, 0x52, 0x08, 0x64, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x73, 0x12,
+	0x55, 0x0a, 0x0f, 0x76, 0x6f, 0x6c, 0x75, 0x6e, 0x74, 0x61, 0x72, 0x79, 0x5f, 0x65, 0x78, 0x69,
+	0x74, 0x73, 0x18, 0x08, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72,
+	0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x53, 0x69, 0x67, 0x6e, 0x65,
+	0x64, 0x56, 0x6f, 0x6c, 0x75, 0x6e, 0x74, 0x61, 0x72, 0x79, 0x45, 0x78, 0x69, 0x74, 0x42, 0x06,
+	0x92, 0xb5, 0x18, 0x02, 0x31, 0x36, 0x52, 0x0e, 0x76, 0x6f, 0x6c, 0x75, 0x6e, 0x74, 0x61, 0x72,
+	0x79, 0x45, 0x78, 0x69, 0x74, 0x73, 0x12, 0x45, 0x0a, 0x0e, 0x73, 0x79, 0x6e, 0x63, 0x5f, 0x61,
+	0x67, 0x67, 0x72, 0x65, 0x67, 0x61, 0x74, 0x65, 0x18, 0x09, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1e,
+	0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x31,
+	0x2e, 0x53, 0x79, 0x6e, 0x63, 0x41, 0x67, 0x67, 0x72, 0x65, 0x67, 0x61, 0x74, 0x65, 0x52, 0x0d,
+	0x73, 0x79, 0x6e, 0x63, 0x41, 0x67, 0x67, 0x72, 0x65, 0x67, 0x61, 0x74, 0x65, 0x42, 0x80, 0x01,
+	0x0a, 0x13, 0x6f, 0x72, 0x67, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65,
+	0x74, 0x68, 0x2e, 0x76, 0x32, 0x42, 0x12, 0x53, 0x79, 0x6e, 0x63, 0x43, 0x6f, 0x6d, 0x6d, 0x69,
+	0x74, 0x74, 0x65, 0x65, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x2f, 0x67, 0x69, 0x74,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d, 0x61, 0x74, 0x69,
+	0x63, 0x6c, 0x61, 0x62, 0x73, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d, 0x2f, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x2f, 0x65, 0x74, 0x68, 0x2f, 0x76, 0x32, 0x3b, 0x65, 0x74, 0x68, 0xaa, 0x02, 0x0f, 0x45,
+	0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x45, 0x74, 0x68, 0x2e, 0x56, 0x32, 0xca, 0x02,
+	0x0f, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x5c, 0x45, 0x74, 0x68, 0x5c, 0x76, 0x32,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1298,7 +1110,7 @@ func file_proto_eth_v2_beacon_block_proto_rawDescGZIP() []byte {
 	return file_proto_eth_v2_beacon_block_proto_rawDescData
 }
 
-var file_proto_eth_v2_beacon_block_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_proto_eth_v2_beacon_block_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
 var file_proto_eth_v2_beacon_block_proto_goTypes = []interface{}{
 	(*BlockRequestV2)(nil),               // 0: ethereum.eth.v2.BlockRequestV2
 	(*BlockResponseV2)(nil),              // 1: ethereum.eth.v2.BlockResponseV2
@@ -1310,47 +1122,47 @@ var file_proto_eth_v2_beacon_block_proto_goTypes = []interface{}{
 	(*BeaconBlockBellatrix)(nil),         // 7: ethereum.eth.v2.BeaconBlockBellatrix
 	(*BeaconBlockAltair)(nil),            // 8: ethereum.eth.v2.BeaconBlockAltair
 	(*BeaconBlockBodyBellatrix)(nil),     // 9: ethereum.eth.v2.BeaconBlockBodyBellatrix
-	(*ExecutionPayload)(nil),             // 10: ethereum.eth.v2.ExecutionPayload
-	(*BeaconBlockBodyAltair)(nil),        // 11: ethereum.eth.v2.BeaconBlockBodyAltair
-	(Version)(0),                         // 12: ethereum.eth.v2.Version
-	(*v1.BeaconBlock)(nil),               // 13: ethereum.eth.v1.BeaconBlock
-	(*v1.Eth1Data)(nil),                  // 14: ethereum.eth.v1.Eth1Data
-	(*v1.ProposerSlashing)(nil),          // 15: ethereum.eth.v1.ProposerSlashing
-	(*v1.AttesterSlashing)(nil),          // 16: ethereum.eth.v1.AttesterSlashing
-	(*v1.Attestation)(nil),               // 17: ethereum.eth.v1.Attestation
-	(*v1.Deposit)(nil),                   // 18: ethereum.eth.v1.Deposit
-	(*v1.SignedVoluntaryExit)(nil),       // 19: ethereum.eth.v1.SignedVoluntaryExit
-	(*v1.SyncAggregate)(nil),             // 20: ethereum.eth.v1.SyncAggregate
+	(*BeaconBlockBodyAltair)(nil),        // 10: ethereum.eth.v2.BeaconBlockBodyAltair
+	(Version)(0),                         // 11: ethereum.eth.v2.Version
+	(*v1.BeaconBlock)(nil),               // 12: ethereum.eth.v1.BeaconBlock
+	(*v1.Eth1Data)(nil),                  // 13: ethereum.eth.v1.Eth1Data
+	(*v1.ProposerSlashing)(nil),          // 14: ethereum.eth.v1.ProposerSlashing
+	(*v1.AttesterSlashing)(nil),          // 15: ethereum.eth.v1.AttesterSlashing
+	(*v1.Attestation)(nil),               // 16: ethereum.eth.v1.Attestation
+	(*v1.Deposit)(nil),                   // 17: ethereum.eth.v1.Deposit
+	(*v1.SignedVoluntaryExit)(nil),       // 18: ethereum.eth.v1.SignedVoluntaryExit
+	(*v1.SyncAggregate)(nil),             // 19: ethereum.eth.v1.SyncAggregate
+	(*v11.ExecutionPayload)(nil),         // 20: ethereum.engine.v1.ExecutionPayload
 }
 var file_proto_eth_v2_beacon_block_proto_depIdxs = []int32{
-	12, // 0: ethereum.eth.v2.BlockResponseV2.version:type_name -> ethereum.eth.v2.Version
+	11, // 0: ethereum.eth.v2.BlockResponseV2.version:type_name -> ethereum.eth.v2.Version
 	4,  // 1: ethereum.eth.v2.BlockResponseV2.data:type_name -> ethereum.eth.v2.SignedBeaconBlockContainerV2
-	12, // 2: ethereum.eth.v2.BlockSSZResponseV2.version:type_name -> ethereum.eth.v2.Version
-	13, // 3: ethereum.eth.v2.BeaconBlockContainerV2.phase0_block:type_name -> ethereum.eth.v1.BeaconBlock
+	11, // 2: ethereum.eth.v2.BlockSSZResponseV2.version:type_name -> ethereum.eth.v2.Version
+	12, // 3: ethereum.eth.v2.BeaconBlockContainerV2.phase0_block:type_name -> ethereum.eth.v1.BeaconBlock
 	8,  // 4: ethereum.eth.v2.BeaconBlockContainerV2.altair_block:type_name -> ethereum.eth.v2.BeaconBlockAltair
 	7,  // 5: ethereum.eth.v2.BeaconBlockContainerV2.bellatrix_block:type_name -> ethereum.eth.v2.BeaconBlockBellatrix
-	13, // 6: ethereum.eth.v2.SignedBeaconBlockContainerV2.phase0_block:type_name -> ethereum.eth.v1.BeaconBlock
+	12, // 6: ethereum.eth.v2.SignedBeaconBlockContainerV2.phase0_block:type_name -> ethereum.eth.v1.BeaconBlock
 	8,  // 7: ethereum.eth.v2.SignedBeaconBlockContainerV2.altair_block:type_name -> ethereum.eth.v2.BeaconBlockAltair
 	7,  // 8: ethereum.eth.v2.SignedBeaconBlockContainerV2.bellatrix_block:type_name -> ethereum.eth.v2.BeaconBlockBellatrix
 	7,  // 9: ethereum.eth.v2.SignedBeaconBlockBellatrix.message:type_name -> ethereum.eth.v2.BeaconBlockBellatrix
 	8,  // 10: ethereum.eth.v2.SignedBeaconBlockAltair.message:type_name -> ethereum.eth.v2.BeaconBlockAltair
 	9,  // 11: ethereum.eth.v2.BeaconBlockBellatrix.body:type_name -> ethereum.eth.v2.BeaconBlockBodyBellatrix
-	11, // 12: ethereum.eth.v2.BeaconBlockAltair.body:type_name -> ethereum.eth.v2.BeaconBlockBodyAltair
-	14, // 13: ethereum.eth.v2.BeaconBlockBodyBellatrix.eth1_data:type_name -> ethereum.eth.v1.Eth1Data
-	15, // 14: ethereum.eth.v2.BeaconBlockBodyBellatrix.proposer_slashings:type_name -> ethereum.eth.v1.ProposerSlashing
-	16, // 15: ethereum.eth.v2.BeaconBlockBodyBellatrix.attester_slashings:type_name -> ethereum.eth.v1.AttesterSlashing
-	17, // 16: ethereum.eth.v2.BeaconBlockBodyBellatrix.attestations:type_name -> ethereum.eth.v1.Attestation
-	18, // 17: ethereum.eth.v2.BeaconBlockBodyBellatrix.deposits:type_name -> ethereum.eth.v1.Deposit
-	19, // 18: ethereum.eth.v2.BeaconBlockBodyBellatrix.voluntary_exits:type_name -> ethereum.eth.v1.SignedVoluntaryExit
-	20, // 19: ethereum.eth.v2.BeaconBlockBodyBellatrix.sync_aggregate:type_name -> ethereum.eth.v1.SyncAggregate
-	10, // 20: ethereum.eth.v2.BeaconBlockBodyBellatrix.execution_payload:type_name -> ethereum.eth.v2.ExecutionPayload
-	14, // 21: ethereum.eth.v2.BeaconBlockBodyAltair.eth1_data:type_name -> ethereum.eth.v1.Eth1Data
-	15, // 22: ethereum.eth.v2.BeaconBlockBodyAltair.proposer_slashings:type_name -> ethereum.eth.v1.ProposerSlashing
-	16, // 23: ethereum.eth.v2.BeaconBlockBodyAltair.attester_slashings:type_name -> ethereum.eth.v1.AttesterSlashing
-	17, // 24: ethereum.eth.v2.BeaconBlockBodyAltair.attestations:type_name -> ethereum.eth.v1.Attestation
-	18, // 25: ethereum.eth.v2.BeaconBlockBodyAltair.deposits:type_name -> ethereum.eth.v1.Deposit
-	19, // 26: ethereum.eth.v2.BeaconBlockBodyAltair.voluntary_exits:type_name -> ethereum.eth.v1.SignedVoluntaryExit
-	20, // 27: ethereum.eth.v2.BeaconBlockBodyAltair.sync_aggregate:type_name -> ethereum.eth.v1.SyncAggregate
+	10, // 12: ethereum.eth.v2.BeaconBlockAltair.body:type_name -> ethereum.eth.v2.BeaconBlockBodyAltair
+	13, // 13: ethereum.eth.v2.BeaconBlockBodyBellatrix.eth1_data:type_name -> ethereum.eth.v1.Eth1Data
+	14, // 14: ethereum.eth.v2.BeaconBlockBodyBellatrix.proposer_slashings:type_name -> ethereum.eth.v1.ProposerSlashing
+	15, // 15: ethereum.eth.v2.BeaconBlockBodyBellatrix.attester_slashings:type_name -> ethereum.eth.v1.AttesterSlashing
+	16, // 16: ethereum.eth.v2.BeaconBlockBodyBellatrix.attestations:type_name -> ethereum.eth.v1.Attestation
+	17, // 17: ethereum.eth.v2.BeaconBlockBodyBellatrix.deposits:type_name -> ethereum.eth.v1.Deposit
+	18, // 18: ethereum.eth.v2.BeaconBlockBodyBellatrix.voluntary_exits:type_name -> ethereum.eth.v1.SignedVoluntaryExit
+	19, // 19: ethereum.eth.v2.BeaconBlockBodyBellatrix.sync_aggregate:type_name -> ethereum.eth.v1.SyncAggregate
+	20, // 20: ethereum.eth.v2.BeaconBlockBodyBellatrix.execution_payload:type_name -> ethereum.engine.v1.ExecutionPayload
+	13, // 21: ethereum.eth.v2.BeaconBlockBodyAltair.eth1_data:type_name -> ethereum.eth.v1.Eth1Data
+	14, // 22: ethereum.eth.v2.BeaconBlockBodyAltair.proposer_slashings:type_name -> ethereum.eth.v1.ProposerSlashing
+	15, // 23: ethereum.eth.v2.BeaconBlockBodyAltair.attester_slashings:type_name -> ethereum.eth.v1.AttesterSlashing
+	16, // 24: ethereum.eth.v2.BeaconBlockBodyAltair.attestations:type_name -> ethereum.eth.v1.Attestation
+	17, // 25: ethereum.eth.v2.BeaconBlockBodyAltair.deposits:type_name -> ethereum.eth.v1.Deposit
+	18, // 26: ethereum.eth.v2.BeaconBlockBodyAltair.voluntary_exits:type_name -> ethereum.eth.v1.SignedVoluntaryExit
+	19, // 27: ethereum.eth.v2.BeaconBlockBodyAltair.sync_aggregate:type_name -> ethereum.eth.v1.SyncAggregate
 	28, // [28:28] is the sub-list for method output_type
 	28, // [28:28] is the sub-list for method input_type
 	28, // [28:28] is the sub-list for extension type_name
@@ -1486,18 +1298,6 @@ func file_proto_eth_v2_beacon_block_proto_init() {
 			}
 		}
 		file_proto_eth_v2_beacon_block_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ExecutionPayload); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_eth_v2_beacon_block_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BeaconBlockBodyAltair); i {
 			case 0:
 				return &v.state
@@ -1526,7 +1326,7 @@ func file_proto_eth_v2_beacon_block_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_eth_v2_beacon_block_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   12,
+			NumMessages:   11,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/proto/eth/v2/beacon_block.proto b/proto/eth/v2/beacon_block.proto
index e2e4b0bd22..6109ad28bf 100644
--- a/proto/eth/v2/beacon_block.proto
+++ b/proto/eth/v2/beacon_block.proto
@@ -19,6 +19,7 @@ import "proto/eth/ext/options.proto";
 import "proto/eth/v1/attestation.proto";
 import "proto/eth/v1/beacon_block.proto";
 import "proto/eth/v2/version.proto";
+import "proto/engine/v1/execution_engine.proto";
 
 option csharp_namespace = "Ethereum.Eth.V2";
 option go_package = "github.com/prysmaticlabs/prysm/proto/eth/v2;eth";
@@ -146,27 +147,7 @@ message BeaconBlockBodyBellatrix {
   v1.SyncAggregate sync_aggregate = 9;
 
   // Execution payload: the embedded execution payload of the block [New in Bellatrix]
-  v2.ExecutionPayload execution_payload = 10;
-}
-
-
-// The execution payload in a `BeaconBlockBody`.
-message ExecutionPayload {
-    // Execution block header fields
-    bytes parent_hash = 1 [(ethereum.eth.ext.ssz_size) = "32"];
-    bytes coinbase = 2 [(ethereum.eth.ext.ssz_size) = "20"]; //'beneficiary' in the yellow paper
-    bytes state_root = 3 [(ethereum.eth.ext.ssz_size) = "32"];
-    bytes receipt_root = 4 [(ethereum.eth.ext.ssz_size) = "32"]; //'receipts root' in the yellow paper
-    bytes logs_bloom = 5 [(ethereum.eth.ext.ssz_size) = "256"];
-    bytes random = 6 [(ethereum.eth.ext.ssz_size) = "32"]; //'difficulty' in the yellow paper
-    uint64 block_number = 7; //'number' in the yellow paper
-    uint64 gas_limit = 8;
-    uint64 gas_used = 9;
-    uint64 timestamp = 10;
-    bytes extra_data = 11 [(ethereum.eth.ext.ssz_max) = "32"];
-    bytes base_fee_per_gas = 12 [(ethereum.eth.ext.ssz_size) = "32"]; //base fee introduced in EIP-1559, little-endian serialized
-    bytes block_hash = 13 [(ethereum.eth.ext.ssz_size) = "32"]; // Hash of execution block
-    repeated bytes transactions = 14  [(ethereum.eth.ext.ssz_size) = "?,?", (ethereum.eth.ext.ssz_max)  = "1048576,1073741824"];
+  ethereum.engine.v1.ExecutionPayload execution_payload = 10;
 }
 
 message BeaconBlockBodyAltair {
diff --git a/proto/eth/v2/generated.ssz.go b/proto/eth/v2/generated.ssz.go
index 4d334d1c96..bf3c446ad9 100644
--- a/proto/eth/v2/generated.ssz.go
+++ b/proto/eth/v2/generated.ssz.go
@@ -1,10 +1,11 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: e5277c868591b3fcf0a8a2f6a9fc3cf3a06db2f947dd1ccbdb6f80701eb69da9
+// Hash: d911bb3ae3b364fe206f845d41d54a2ddc40db6e74c7c51415238edd1b02ade4
 package eth
 
 import (
 	ssz "github.com/ferranbt/fastssz"
 	github_com_prysmaticlabs_eth2_types "github.com/prysmaticlabs/eth2-types"
+	v11 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	v1 "github.com/prysmaticlabs/prysm/proto/eth/v1"
 )
 
@@ -589,7 +590,7 @@ func (b *BeaconBlockBodyBellatrix) MarshalSSZTo(buf []byte) (dst []byte, err err
 	// Offset (9) 'ExecutionPayload'
 	dst = ssz.WriteOffset(dst, offset)
 	if b.ExecutionPayload == nil {
-		b.ExecutionPayload = new(ExecutionPayload)
+		b.ExecutionPayload = new(v11.ExecutionPayload)
 	}
 	offset += b.ExecutionPayload.SizeSSZ()
 
@@ -845,7 +846,7 @@ func (b *BeaconBlockBodyBellatrix) UnmarshalSSZ(buf []byte) error {
 	{
 		buf = tail[o9:]
 		if b.ExecutionPayload == nil {
-			b.ExecutionPayload = new(ExecutionPayload)
+			b.ExecutionPayload = new(v11.ExecutionPayload)
 		}
 		if err = b.ExecutionPayload.UnmarshalSSZ(buf); err != nil {
 			return err
@@ -881,7 +882,7 @@ func (b *BeaconBlockBodyBellatrix) SizeSSZ() (size int) {
 
 	// Field (9) 'ExecutionPayload'
 	if b.ExecutionPayload == nil {
-		b.ExecutionPayload = new(ExecutionPayload)
+		b.ExecutionPayload = new(v11.ExecutionPayload)
 	}
 	size += b.ExecutionPayload.SizeSSZ()
 
@@ -1010,379 +1011,6 @@ func (b *BeaconBlockBodyBellatrix) HashTreeRootWith(hh *ssz.Hasher) (err error)
 	return
 }
 
-// MarshalSSZ ssz marshals the ExecutionPayload object
-func (e *ExecutionPayload) MarshalSSZ() ([]byte, error) {
-	return ssz.MarshalSSZ(e)
-}
-
-// MarshalSSZTo ssz marshals the ExecutionPayload object to a target array
-func (e *ExecutionPayload) MarshalSSZTo(buf []byte) (dst []byte, err error) {
-	dst = buf
-	offset := int(508)
-
-	// Field (0) 'ParentHash'
-	if len(e.ParentHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ParentHash...)
-
-	// Field (1) 'Coinbase'
-	if len(e.Coinbase) != 20 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.Coinbase...)
-
-	// Field (2) 'StateRoot'
-	if len(e.StateRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.StateRoot...)
-
-	// Field (3) 'ReceiptRoot'
-	if len(e.ReceiptRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ReceiptRoot...)
-
-	// Field (4) 'LogsBloom'
-	if len(e.LogsBloom) != 256 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.LogsBloom...)
-
-	// Field (5) 'Random'
-	if len(e.Random) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.Random...)
-
-	// Field (6) 'BlockNumber'
-	dst = ssz.MarshalUint64(dst, e.BlockNumber)
-
-	// Field (7) 'GasLimit'
-	dst = ssz.MarshalUint64(dst, e.GasLimit)
-
-	// Field (8) 'GasUsed'
-	dst = ssz.MarshalUint64(dst, e.GasUsed)
-
-	// Field (9) 'Timestamp'
-	dst = ssz.MarshalUint64(dst, e.Timestamp)
-
-	// Offset (10) 'ExtraData'
-	dst = ssz.WriteOffset(dst, offset)
-	offset += len(e.ExtraData)
-
-	// Field (11) 'BaseFeePerGas'
-	if len(e.BaseFeePerGas) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.BaseFeePerGas...)
-
-	// Field (12) 'BlockHash'
-	if len(e.BlockHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.BlockHash...)
-
-	// Offset (13) 'Transactions'
-	dst = ssz.WriteOffset(dst, offset)
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		offset += 4
-		offset += len(e.Transactions[ii])
-	}
-
-	// Field (10) 'ExtraData'
-	if len(e.ExtraData) > 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ExtraData...)
-
-	// Field (13) 'Transactions'
-	if len(e.Transactions) > 1048576 {
-		err = ssz.ErrListTooBig
-		return
-	}
-	{
-		offset = 4 * len(e.Transactions)
-		for ii := 0; ii < len(e.Transactions); ii++ {
-			dst = ssz.WriteOffset(dst, offset)
-			offset += len(e.Transactions[ii])
-		}
-	}
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		if len(e.Transactions[ii]) > 1073741824 {
-			err = ssz.ErrBytesLength
-			return
-		}
-		dst = append(dst, e.Transactions[ii]...)
-	}
-
-	return
-}
-
-// UnmarshalSSZ ssz unmarshals the ExecutionPayload object
-func (e *ExecutionPayload) UnmarshalSSZ(buf []byte) error {
-	var err error
-	size := uint64(len(buf))
-	if size < 508 {
-		return ssz.ErrSize
-	}
-
-	tail := buf
-	var o10, o13 uint64
-
-	// Field (0) 'ParentHash'
-	if cap(e.ParentHash) == 0 {
-		e.ParentHash = make([]byte, 0, len(buf[0:32]))
-	}
-	e.ParentHash = append(e.ParentHash, buf[0:32]...)
-
-	// Field (1) 'Coinbase'
-	if cap(e.Coinbase) == 0 {
-		e.Coinbase = make([]byte, 0, len(buf[32:52]))
-	}
-	e.Coinbase = append(e.Coinbase, buf[32:52]...)
-
-	// Field (2) 'StateRoot'
-	if cap(e.StateRoot) == 0 {
-		e.StateRoot = make([]byte, 0, len(buf[52:84]))
-	}
-	e.StateRoot = append(e.StateRoot, buf[52:84]...)
-
-	// Field (3) 'ReceiptRoot'
-	if cap(e.ReceiptRoot) == 0 {
-		e.ReceiptRoot = make([]byte, 0, len(buf[84:116]))
-	}
-	e.ReceiptRoot = append(e.ReceiptRoot, buf[84:116]...)
-
-	// Field (4) 'LogsBloom'
-	if cap(e.LogsBloom) == 0 {
-		e.LogsBloom = make([]byte, 0, len(buf[116:372]))
-	}
-	e.LogsBloom = append(e.LogsBloom, buf[116:372]...)
-
-	// Field (5) 'Random'
-	if cap(e.Random) == 0 {
-		e.Random = make([]byte, 0, len(buf[372:404]))
-	}
-	e.Random = append(e.Random, buf[372:404]...)
-
-	// Field (6) 'BlockNumber'
-	e.BlockNumber = ssz.UnmarshallUint64(buf[404:412])
-
-	// Field (7) 'GasLimit'
-	e.GasLimit = ssz.UnmarshallUint64(buf[412:420])
-
-	// Field (8) 'GasUsed'
-	e.GasUsed = ssz.UnmarshallUint64(buf[420:428])
-
-	// Field (9) 'Timestamp'
-	e.Timestamp = ssz.UnmarshallUint64(buf[428:436])
-
-	// Offset (10) 'ExtraData'
-	if o10 = ssz.ReadOffset(buf[436:440]); o10 > size {
-		return ssz.ErrOffset
-	}
-
-	if o10 < 508 {
-		return ssz.ErrInvalidVariableOffset
-	}
-
-	// Field (11) 'BaseFeePerGas'
-	if cap(e.BaseFeePerGas) == 0 {
-		e.BaseFeePerGas = make([]byte, 0, len(buf[440:472]))
-	}
-	e.BaseFeePerGas = append(e.BaseFeePerGas, buf[440:472]...)
-
-	// Field (12) 'BlockHash'
-	if cap(e.BlockHash) == 0 {
-		e.BlockHash = make([]byte, 0, len(buf[472:504]))
-	}
-	e.BlockHash = append(e.BlockHash, buf[472:504]...)
-
-	// Offset (13) 'Transactions'
-	if o13 = ssz.ReadOffset(buf[504:508]); o13 > size || o10 > o13 {
-		return ssz.ErrOffset
-	}
-
-	// Field (10) 'ExtraData'
-	{
-		buf = tail[o10:o13]
-		if len(buf) > 32 {
-			return ssz.ErrBytesLength
-		}
-		if cap(e.ExtraData) == 0 {
-			e.ExtraData = make([]byte, 0, len(buf))
-		}
-		e.ExtraData = append(e.ExtraData, buf...)
-	}
-
-	// Field (13) 'Transactions'
-	{
-		buf = tail[o13:]
-		num, err := ssz.DecodeDynamicLength(buf, 1048576)
-		if err != nil {
-			return err
-		}
-		e.Transactions = make([][]byte, num)
-		err = ssz.UnmarshalDynamic(buf, num, func(indx int, buf []byte) (err error) {
-			if len(buf) > 1073741824 {
-				return ssz.ErrBytesLength
-			}
-			if cap(e.Transactions[indx]) == 0 {
-				e.Transactions[indx] = make([]byte, 0, len(buf))
-			}
-			e.Transactions[indx] = append(e.Transactions[indx], buf...)
-			return nil
-		})
-		if err != nil {
-			return err
-		}
-	}
-	return err
-}
-
-// SizeSSZ returns the ssz encoded size in bytes for the ExecutionPayload object
-func (e *ExecutionPayload) SizeSSZ() (size int) {
-	size = 508
-
-	// Field (10) 'ExtraData'
-	size += len(e.ExtraData)
-
-	// Field (13) 'Transactions'
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		size += 4
-		size += len(e.Transactions[ii])
-	}
-
-	return
-}
-
-// HashTreeRoot ssz hashes the ExecutionPayload object
-func (e *ExecutionPayload) HashTreeRoot() ([32]byte, error) {
-	return ssz.HashWithDefaultHasher(e)
-}
-
-// HashTreeRootWith ssz hashes the ExecutionPayload object with a hasher
-func (e *ExecutionPayload) HashTreeRootWith(hh *ssz.Hasher) (err error) {
-	indx := hh.Index()
-
-	// Field (0) 'ParentHash'
-	if len(e.ParentHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.ParentHash)
-
-	// Field (1) 'Coinbase'
-	if len(e.Coinbase) != 20 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.Coinbase)
-
-	// Field (2) 'StateRoot'
-	if len(e.StateRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.StateRoot)
-
-	// Field (3) 'ReceiptRoot'
-	if len(e.ReceiptRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.ReceiptRoot)
-
-	// Field (4) 'LogsBloom'
-	if len(e.LogsBloom) != 256 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.LogsBloom)
-
-	// Field (5) 'Random'
-	if len(e.Random) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.Random)
-
-	// Field (6) 'BlockNumber'
-	hh.PutUint64(e.BlockNumber)
-
-	// Field (7) 'GasLimit'
-	hh.PutUint64(e.GasLimit)
-
-	// Field (8) 'GasUsed'
-	hh.PutUint64(e.GasUsed)
-
-	// Field (9) 'Timestamp'
-	hh.PutUint64(e.Timestamp)
-
-	// Field (10) 'ExtraData'
-	{
-		elemIndx := hh.Index()
-		byteLen := uint64(len(e.ExtraData))
-		if byteLen > 32 {
-			err = ssz.ErrIncorrectListSize
-			return
-		}
-		hh.PutBytes(e.ExtraData)
-		hh.MerkleizeWithMixin(elemIndx, byteLen, (32+31)/32)
-	}
-
-	// Field (11) 'BaseFeePerGas'
-	if len(e.BaseFeePerGas) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.BaseFeePerGas)
-
-	// Field (12) 'BlockHash'
-	if len(e.BlockHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.BlockHash)
-
-	// Field (13) 'Transactions'
-	{
-		subIndx := hh.Index()
-		num := uint64(len(e.Transactions))
-		if num > 1048576 {
-			err = ssz.ErrIncorrectListSize
-			return
-		}
-		for _, elem := range e.Transactions {
-			{
-				elemIndx := hh.Index()
-				byteLen := uint64(len(elem))
-				if byteLen > 1073741824 {
-					err = ssz.ErrIncorrectListSize
-					return
-				}
-				hh.AppendBytes32(elem)
-				hh.MerkleizeWithMixin(elemIndx, byteLen, (1073741824+31)/32)
-			}
-		}
-		hh.MerkleizeWithMixin(subIndx, num, 1048576)
-	}
-
-	hh.Merkleize(indx)
-	return
-}
-
 // MarshalSSZ ssz marshals the BeaconBlockBodyAltair object
 func (b *BeaconBlockBodyAltair) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(b)
diff --git a/proto/prysm/v1alpha1/BUILD.bazel b/proto/prysm/v1alpha1/BUILD.bazel
index 97fa40ed76..6b4bd27bd0 100644
--- a/proto/prysm/v1alpha1/BUILD.bazel
+++ b/proto/prysm/v1alpha1/BUILD.bazel
@@ -36,6 +36,7 @@ proto_library(
     visibility = ["//visibility:public"],
     deps = [
         "//proto/eth/ext:proto",
+        "//proto/engine/v1:proto",
         "@com_github_grpc_ecosystem_grpc_gateway_v2//protoc-gen-openapiv2/options:options_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
@@ -53,6 +54,7 @@ ssz_gen_marshal(
     go_proto = ":go_proto",
     includes = [
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",
+        "//proto/engine/v1:go_default_library",
     ],
     objs = [
         "BeaconBlockAltair",
@@ -114,6 +116,7 @@ go_proto_library(
     visibility = ["//visibility:public"],
     deps = [
         "//proto/eth/ext:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "@com_github_golang_protobuf//proto:go_default_library",
         "@com_github_grpc_ecosystem_grpc_gateway_v2//protoc-gen-openapiv2/options:options_go_proto",
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",
@@ -139,6 +142,7 @@ go_proto_library(
     visibility = ["//visibility:private"],
     deps = [
         "//proto/eth/ext:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "@com_github_grpc_ecosystem_grpc_gateway_v2//protoc-gen-openapiv2/options:options_go_proto",
         "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@go_googleapis//google/api:annotations_go_proto",
@@ -163,6 +167,7 @@ go_library(
     visibility = ["//visibility:public"],
     deps = SSZ_DEPS + [
         "//proto/eth/ext:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "@com_github_grpc_ecosystem_grpc_gateway_v2//runtime:go_default_library",
         "@com_github_grpc_ecosystem_grpc_gateway_v2//utilities:go_default_library",
diff --git a/proto/prysm/v1alpha1/beacon_block.pb.go b/proto/prysm/v1alpha1/beacon_block.pb.go
index 3551cdc914..9a348880dc 100755
--- a/proto/prysm/v1alpha1/beacon_block.pb.go
+++ b/proto/prysm/v1alpha1/beacon_block.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.27.1
 // 	protoc        v3.15.8
 // source: proto/prysm/v1alpha1/beacon_block.proto
 
@@ -10,9 +10,9 @@ import (
 	reflect "reflect"
 	sync "sync"
 
-	proto "github.com/golang/protobuf/proto"
 	github_com_prysmaticlabs_eth2_types "github.com/prysmaticlabs/eth2-types"
 	github_com_prysmaticlabs_go_bitfield "github.com/prysmaticlabs/go-bitfield"
+	v1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	_ "github.com/prysmaticlabs/prysm/proto/eth/ext"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -25,10 +25,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type GenericSignedBeaconBlock struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1437,7 +1433,7 @@ type BeaconBlockBodyBellatrix struct {
 	Deposits          []*Deposit             `protobuf:"bytes,7,rep,name=deposits,proto3" json:"deposits,omitempty" ssz-max:"16"`
 	VoluntaryExits    []*SignedVoluntaryExit `protobuf:"bytes,8,rep,name=voluntary_exits,json=voluntaryExits,proto3" json:"voluntary_exits,omitempty" ssz-max:"16"`
 	SyncAggregate     *SyncAggregate         `protobuf:"bytes,9,opt,name=sync_aggregate,json=syncAggregate,proto3" json:"sync_aggregate,omitempty"`
-	ExecutionPayload  *ExecutionPayload      `protobuf:"bytes,10,opt,name=execution_payload,json=executionPayload,proto3" json:"execution_payload,omitempty"`
+	ExecutionPayload  *v1.ExecutionPayload   `protobuf:"bytes,10,opt,name=execution_payload,json=executionPayload,proto3" json:"execution_payload,omitempty"`
 }
 
 func (x *BeaconBlockBodyBellatrix) Reset() {
@@ -1535,164 +1531,13 @@ func (x *BeaconBlockBodyBellatrix) GetSyncAggregate() *SyncAggregate {
 	return nil
 }
 
-func (x *BeaconBlockBodyBellatrix) GetExecutionPayload() *ExecutionPayload {
+func (x *BeaconBlockBodyBellatrix) GetExecutionPayload() *v1.ExecutionPayload {
 	if x != nil {
 		return x.ExecutionPayload
 	}
 	return nil
 }
 
-type ExecutionPayload struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	ParentHash    []byte   `protobuf:"bytes,1,opt,name=parent_hash,json=parentHash,proto3" json:"parent_hash,omitempty" ssz-size:"32"`
-	FeeRecipient  []byte   `protobuf:"bytes,2,opt,name=fee_recipient,json=feeRecipient,proto3" json:"fee_recipient,omitempty" ssz-size:"20"`
-	StateRoot     []byte   `protobuf:"bytes,3,opt,name=state_root,json=stateRoot,proto3" json:"state_root,omitempty" ssz-size:"32"`
-	ReceiptRoot   []byte   `protobuf:"bytes,4,opt,name=receipt_root,json=receiptRoot,proto3" json:"receipt_root,omitempty" ssz-size:"32"`
-	LogsBloom     []byte   `protobuf:"bytes,5,opt,name=logs_bloom,json=logsBloom,proto3" json:"logs_bloom,omitempty" ssz-size:"256"`
-	Random        []byte   `protobuf:"bytes,6,opt,name=random,proto3" json:"random,omitempty" ssz-size:"32"`
-	BlockNumber   uint64   `protobuf:"varint,7,opt,name=block_number,json=blockNumber,proto3" json:"block_number,omitempty"`
-	GasLimit      uint64   `protobuf:"varint,8,opt,name=gas_limit,json=gasLimit,proto3" json:"gas_limit,omitempty"`
-	GasUsed       uint64   `protobuf:"varint,9,opt,name=gas_used,json=gasUsed,proto3" json:"gas_used,omitempty"`
-	Timestamp     uint64   `protobuf:"varint,10,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
-	ExtraData     []byte   `protobuf:"bytes,11,opt,name=extra_data,json=extraData,proto3" json:"extra_data,omitempty" ssz-max:"32"`
-	BaseFeePerGas []byte   `protobuf:"bytes,12,opt,name=base_fee_per_gas,json=baseFeePerGas,proto3" json:"base_fee_per_gas,omitempty" ssz-size:"32"`
-	BlockHash     []byte   `protobuf:"bytes,13,opt,name=block_hash,json=blockHash,proto3" json:"block_hash,omitempty" ssz-size:"32"`
-	Transactions  [][]byte `protobuf:"bytes,14,rep,name=transactions,proto3" json:"transactions,omitempty" ssz-max:"1048576,1073741824" ssz-size:"?,?"`
-}
-
-func (x *ExecutionPayload) Reset() {
-	*x = ExecutionPayload{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[21]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ExecutionPayload) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ExecutionPayload) ProtoMessage() {}
-
-func (x *ExecutionPayload) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[21]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ExecutionPayload.ProtoReflect.Descriptor instead.
-func (*ExecutionPayload) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_beacon_block_proto_rawDescGZIP(), []int{21}
-}
-
-func (x *ExecutionPayload) GetParentHash() []byte {
-	if x != nil {
-		return x.ParentHash
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetFeeRecipient() []byte {
-	if x != nil {
-		return x.FeeRecipient
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetStateRoot() []byte {
-	if x != nil {
-		return x.StateRoot
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetReceiptRoot() []byte {
-	if x != nil {
-		return x.ReceiptRoot
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetLogsBloom() []byte {
-	if x != nil {
-		return x.LogsBloom
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetRandom() []byte {
-	if x != nil {
-		return x.Random
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBlockNumber() uint64 {
-	if x != nil {
-		return x.BlockNumber
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetGasLimit() uint64 {
-	if x != nil {
-		return x.GasLimit
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetGasUsed() uint64 {
-	if x != nil {
-		return x.GasUsed
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetTimestamp() uint64 {
-	if x != nil {
-		return x.Timestamp
-	}
-	return 0
-}
-
-func (x *ExecutionPayload) GetExtraData() []byte {
-	if x != nil {
-		return x.ExtraData
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBaseFeePerGas() []byte {
-	if x != nil {
-		return x.BaseFeePerGas
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetBlockHash() []byte {
-	if x != nil {
-		return x.BlockHash
-	}
-	return nil
-}
-
-func (x *ExecutionPayload) GetTransactions() [][]byte {
-	if x != nil {
-		return x.Transactions
-	}
-	return nil
-}
-
 type Deposit_Data struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1707,7 +1552,7 @@ type Deposit_Data struct {
 func (x *Deposit_Data) Reset() {
 	*x = Deposit_Data{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[22]
+		mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[21]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1720,7 +1565,7 @@ func (x *Deposit_Data) String() string {
 func (*Deposit_Data) ProtoMessage() {}
 
 func (x *Deposit_Data) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[22]
+	mi := &file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[21]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1775,67 +1620,42 @@ var file_proto_prysm_v1alpha1_beacon_block_proto_rawDesc = []byte{
 	0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x26, 0x70,
 	0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x70, 0x72, 0x79, 0x73, 0x6d, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70,
 	0x68, 0x61, 0x31, 0x2f, 0x61, 0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x84, 0x02, 0x0a, 0x18, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x69,
-	0x63, 0x53, 0x69, 0x67, 0x6e, 0x65, 0x64, 0x42, 0x65, 0x61, 0x63, 0x6f, 0x6e, 0x42, 0x6c, 0x6f,
-	0x63, 0x6b, 0x12, 0x42, 0x0a, 0x06, 0x70, 0x68, 0x61, 0x73, 0x65, 0x30, 0x18, 0x01, 0x20, 0x01,
-	0x28, 0x0b, 0x32, 0x28, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74,
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 }
 
 var (
@@ -2197,7 +2009,7 @@ func file_proto_prysm_v1alpha1_beacon_block_proto_rawDescGZIP() []byte {
 	return file_proto_prysm_v1alpha1_beacon_block_proto_rawDescData
 }
 
-var file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes = make([]protoimpl.MessageInfo, 23)
+var file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes = make([]protoimpl.MessageInfo, 22)
 var file_proto_prysm_v1alpha1_beacon_block_proto_goTypes = []interface{}{
 	(*GenericSignedBeaconBlock)(nil),   // 0: ethereum.eth.v1alpha1.GenericSignedBeaconBlock
 	(*GenericBeaconBlock)(nil),         // 1: ethereum.eth.v1alpha1.GenericBeaconBlock
@@ -2220,10 +2032,10 @@ var file_proto_prysm_v1alpha1_beacon_block_proto_goTypes = []interface{}{
 	(*SignedBeaconBlockBellatrix)(nil), // 18: ethereum.eth.v1alpha1.SignedBeaconBlockBellatrix
 	(*BeaconBlockBellatrix)(nil),       // 19: ethereum.eth.v1alpha1.BeaconBlockBellatrix
 	(*BeaconBlockBodyBellatrix)(nil),   // 20: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix
-	(*ExecutionPayload)(nil),           // 21: ethereum.eth.v1alpha1.ExecutionPayload
-	(*Deposit_Data)(nil),               // 22: ethereum.eth.v1alpha1.Deposit.Data
-	(*Attestation)(nil),                // 23: ethereum.eth.v1alpha1.Attestation
-	(*AttestationData)(nil),            // 24: ethereum.eth.v1alpha1.AttestationData
+	(*Deposit_Data)(nil),               // 21: ethereum.eth.v1alpha1.Deposit.Data
+	(*Attestation)(nil),                // 22: ethereum.eth.v1alpha1.Attestation
+	(*AttestationData)(nil),            // 23: ethereum.eth.v1alpha1.AttestationData
+	(*v1.ExecutionPayload)(nil),        // 24: ethereum.engine.v1.ExecutionPayload
 }
 var file_proto_prysm_v1alpha1_beacon_block_proto_depIdxs = []int32{
 	3,  // 0: ethereum.eth.v1alpha1.GenericSignedBeaconBlock.phase0:type_name -> ethereum.eth.v1alpha1.SignedBeaconBlock
@@ -2239,13 +2051,13 @@ var file_proto_prysm_v1alpha1_beacon_block_proto_depIdxs = []int32{
 	13, // 10: ethereum.eth.v1alpha1.BeaconBlockBody.eth1_data:type_name -> ethereum.eth.v1alpha1.Eth1Data
 	8,  // 11: ethereum.eth.v1alpha1.BeaconBlockBody.proposer_slashings:type_name -> ethereum.eth.v1alpha1.ProposerSlashing
 	9,  // 12: ethereum.eth.v1alpha1.BeaconBlockBody.attester_slashings:type_name -> ethereum.eth.v1alpha1.AttesterSlashing
-	23, // 13: ethereum.eth.v1alpha1.BeaconBlockBody.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
+	22, // 13: ethereum.eth.v1alpha1.BeaconBlockBody.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
 	10, // 14: ethereum.eth.v1alpha1.BeaconBlockBody.deposits:type_name -> ethereum.eth.v1alpha1.Deposit
 	12, // 15: ethereum.eth.v1alpha1.BeaconBlockBody.voluntary_exits:type_name -> ethereum.eth.v1alpha1.SignedVoluntaryExit
 	13, // 16: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.eth1_data:type_name -> ethereum.eth.v1alpha1.Eth1Data
 	8,  // 17: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.proposer_slashings:type_name -> ethereum.eth.v1alpha1.ProposerSlashing
 	9,  // 18: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.attester_slashings:type_name -> ethereum.eth.v1alpha1.AttesterSlashing
-	23, // 19: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
+	22, // 19: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
 	10, // 20: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.deposits:type_name -> ethereum.eth.v1alpha1.Deposit
 	12, // 21: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.voluntary_exits:type_name -> ethereum.eth.v1alpha1.SignedVoluntaryExit
 	17, // 22: ethereum.eth.v1alpha1.BeaconBlockBodyAltair.sync_aggregate:type_name -> ethereum.eth.v1alpha1.SyncAggregate
@@ -2253,20 +2065,20 @@ var file_proto_prysm_v1alpha1_beacon_block_proto_depIdxs = []int32{
 	15, // 24: ethereum.eth.v1alpha1.ProposerSlashing.header_2:type_name -> ethereum.eth.v1alpha1.SignedBeaconBlockHeader
 	16, // 25: ethereum.eth.v1alpha1.AttesterSlashing.attestation_1:type_name -> ethereum.eth.v1alpha1.IndexedAttestation
 	16, // 26: ethereum.eth.v1alpha1.AttesterSlashing.attestation_2:type_name -> ethereum.eth.v1alpha1.IndexedAttestation
-	22, // 27: ethereum.eth.v1alpha1.Deposit.data:type_name -> ethereum.eth.v1alpha1.Deposit.Data
+	21, // 27: ethereum.eth.v1alpha1.Deposit.data:type_name -> ethereum.eth.v1alpha1.Deposit.Data
 	11, // 28: ethereum.eth.v1alpha1.SignedVoluntaryExit.exit:type_name -> ethereum.eth.v1alpha1.VoluntaryExit
 	14, // 29: ethereum.eth.v1alpha1.SignedBeaconBlockHeader.header:type_name -> ethereum.eth.v1alpha1.BeaconBlockHeader
-	24, // 30: ethereum.eth.v1alpha1.IndexedAttestation.data:type_name -> ethereum.eth.v1alpha1.AttestationData
+	23, // 30: ethereum.eth.v1alpha1.IndexedAttestation.data:type_name -> ethereum.eth.v1alpha1.AttestationData
 	19, // 31: ethereum.eth.v1alpha1.SignedBeaconBlockBellatrix.block:type_name -> ethereum.eth.v1alpha1.BeaconBlockBellatrix
 	20, // 32: ethereum.eth.v1alpha1.BeaconBlockBellatrix.body:type_name -> ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix
 	13, // 33: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.eth1_data:type_name -> ethereum.eth.v1alpha1.Eth1Data
 	8,  // 34: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.proposer_slashings:type_name -> ethereum.eth.v1alpha1.ProposerSlashing
 	9,  // 35: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.attester_slashings:type_name -> ethereum.eth.v1alpha1.AttesterSlashing
-	23, // 36: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
+	22, // 36: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.attestations:type_name -> ethereum.eth.v1alpha1.Attestation
 	10, // 37: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.deposits:type_name -> ethereum.eth.v1alpha1.Deposit
 	12, // 38: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.voluntary_exits:type_name -> ethereum.eth.v1alpha1.SignedVoluntaryExit
 	17, // 39: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.sync_aggregate:type_name -> ethereum.eth.v1alpha1.SyncAggregate
-	21, // 40: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.execution_payload:type_name -> ethereum.eth.v1alpha1.ExecutionPayload
+	24, // 40: ethereum.eth.v1alpha1.BeaconBlockBodyBellatrix.execution_payload:type_name -> ethereum.engine.v1.ExecutionPayload
 	41, // [41:41] is the sub-list for method output_type
 	41, // [41:41] is the sub-list for method input_type
 	41, // [41:41] is the sub-list for extension type_name
@@ -2534,18 +2346,6 @@ func file_proto_prysm_v1alpha1_beacon_block_proto_init() {
 			}
 		}
 		file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[21].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ExecutionPayload); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_prysm_v1alpha1_beacon_block_proto_msgTypes[22].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Deposit_Data); i {
 			case 0:
 				return &v.state
@@ -2574,7 +2374,7 @@ func file_proto_prysm_v1alpha1_beacon_block_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_prysm_v1alpha1_beacon_block_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   23,
+			NumMessages:   22,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/proto/prysm/v1alpha1/beacon_block.proto b/proto/prysm/v1alpha1/beacon_block.proto
index 8fcd3e2752..eec96d8988 100644
--- a/proto/prysm/v1alpha1/beacon_block.proto
+++ b/proto/prysm/v1alpha1/beacon_block.proto
@@ -17,6 +17,7 @@ package ethereum.eth.v1alpha1;
 
 import "proto/eth/ext/options.proto";
 import "proto/prysm/v1alpha1/attestation.proto";
+import "proto/engine/v1/execution_engine.proto";
 
 option csharp_namespace = "Ethereum.Eth.v1alpha1";
 option go_package = "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1;eth";
@@ -355,23 +356,5 @@ message BeaconBlockBodyBellatrix {
     SyncAggregate sync_aggregate = 9;
 
     // Execution payload from the execution chain. New in Bellatrix network upgrade.
-    ExecutionPayload execution_payload = 10;
-}
-
-message ExecutionPayload {
-    bytes parent_hash = 1 [(ethereum.eth.ext.ssz_size) = "32"];
-    bytes fee_recipient = 2 [(ethereum.eth.ext.ssz_size) = "20"]; // 'beneficiary' in the yellow paper
-    bytes state_root = 3 [(ethereum.eth.ext.ssz_size) = "32"];
-    bytes receipt_root = 4 [(ethereum.eth.ext.ssz_size) = "32"]; // 'receipts root' in the yellow paper
-    bytes logs_bloom = 5 [(ethereum.eth.ext.ssz_size) = "256"];
-    bytes random = 6 [(ethereum.eth.ext.ssz_size) = "32"]; // 'difficulty' in the yellow paper
-    uint64 block_number = 7; // 'number' in the yellow paper
-    uint64 gas_limit = 8;
-    uint64 gas_used = 9;
-    uint64 timestamp = 10;
-    bytes extra_data = 11 [(ethereum.eth.ext.ssz_max) = "32"];
-    bytes base_fee_per_gas = 12 [(ethereum.eth.ext.ssz_size) = "32"]; //base fee introduced in EIP-1559, little-endian serialized
-    bytes block_hash = 13 [(ethereum.eth.ext.ssz_size) = "32"]; // Hash of execution block
-    // Transactions are encoded with RLP, and so to software that only understands SSZ they are presented as opaque byte arrays.
-    repeated bytes transactions = 14  [(ethereum.eth.ext.ssz_size) = "?,?", (ethereum.eth.ext.ssz_max)  = "1048576,1073741824"];
+    ethereum.engine.v1.ExecutionPayload execution_payload = 10;
 }
diff --git a/proto/prysm/v1alpha1/block/BUILD.bazel b/proto/prysm/v1alpha1/block/BUILD.bazel
index 95699c74c8..cd70aa8f02 100644
--- a/proto/prysm/v1alpha1/block/BUILD.bazel
+++ b/proto/prysm/v1alpha1/block/BUILD.bazel
@@ -9,6 +9,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block",
     visibility = ["//visibility:public"],
     deps = [
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "@com_github_ferranbt_fastssz//:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
diff --git a/proto/prysm/v1alpha1/block/block_interfaces.go b/proto/prysm/v1alpha1/block/block_interfaces.go
index 19b4f05377..d654e9cb52 100644
--- a/proto/prysm/v1alpha1/block/block_interfaces.go
+++ b/proto/prysm/v1alpha1/block/block_interfaces.go
@@ -3,6 +3,7 @@ package block
 import (
 	ssz "github.com/ferranbt/fastssz"
 	types "github.com/prysmaticlabs/eth2-types"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"google.golang.org/protobuf/proto"
 )
@@ -55,5 +56,5 @@ type BeaconBlockBody interface {
 	IsNil() bool
 	HashTreeRoot() ([32]byte, error)
 	Proto() proto.Message
-	ExecutionPayload() (*ethpb.ExecutionPayload, error)
+	ExecutionPayload() (*enginev1.ExecutionPayload, error)
 }
diff --git a/proto/prysm/v1alpha1/cloners.go b/proto/prysm/v1alpha1/cloners.go
index 6b024e77ff..e3497d1c55 100644
--- a/proto/prysm/v1alpha1/cloners.go
+++ b/proto/prysm/v1alpha1/cloners.go
@@ -2,6 +2,7 @@ package eth
 
 import (
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 )
 
 // CopyETH1Data copies the provided eth1data object.
@@ -422,16 +423,16 @@ func CopyBeaconBlockBodyBellatrix(body *BeaconBlockBodyBellatrix) *BeaconBlockBo
 }
 
 // CopyExecutionPayload copies the provided ApplicationPayload.
-func CopyExecutionPayload(payload *ExecutionPayload) *ExecutionPayload {
+func CopyExecutionPayload(payload *enginev1.ExecutionPayload) *enginev1.ExecutionPayload {
 	if payload == nil {
 		return nil
 	}
 
-	return &ExecutionPayload{
+	return &enginev1.ExecutionPayload{
 		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
 		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
 		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptRoot:   bytesutil.SafeCopyBytes(payload.ReceiptRoot),
+		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
 		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
 		Random:        bytesutil.SafeCopyBytes(payload.Random),
 		BlockNumber:   payload.BlockNumber,
diff --git a/proto/prysm/v1alpha1/cloners_test.go b/proto/prysm/v1alpha1/cloners_test.go
index 55ac04af06..b565a0ad99 100644
--- a/proto/prysm/v1alpha1/cloners_test.go
+++ b/proto/prysm/v1alpha1/cloners_test.go
@@ -5,6 +5,7 @@ import (
 	"reflect"
 	"testing"
 
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	v1alpha1 "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/assert"
 )
@@ -645,12 +646,12 @@ func genSyncCommitteeMessage() *v1alpha1.SyncCommitteeMessage {
 	}
 }
 
-func genPayload() *v1alpha1.ExecutionPayload {
-	return &v1alpha1.ExecutionPayload{
+func genPayload() *enginev1.ExecutionPayload {
+	return &enginev1.ExecutionPayload{
 		ParentHash:    bytes(),
 		FeeRecipient:  bytes(),
 		StateRoot:     bytes(),
-		ReceiptRoot:   bytes(),
+		ReceiptsRoot:  bytes(),
 		LogsBloom:     bytes(),
 		Random:        bytes(),
 		BlockNumber:   1,
diff --git a/proto/prysm/v1alpha1/generated.ssz.go b/proto/prysm/v1alpha1/generated.ssz.go
index 73c2f9b2b6..bf2c8f4f09 100644
--- a/proto/prysm/v1alpha1/generated.ssz.go
+++ b/proto/prysm/v1alpha1/generated.ssz.go
@@ -1,10 +1,11 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: b98f299d81573e8b65e8c48443b4fab6b7751d8419309490473e2d498ccc6d00
+// Hash: 918e4cad5e5303985198dfbe24e252a161e9bf3e5110a4a2539c59a605a7762f
 package eth
 
 import (
 	ssz "github.com/ferranbt/fastssz"
 	github_com_prysmaticlabs_eth2_types "github.com/prysmaticlabs/eth2-types"
+	v1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 )
 
 // MarshalSSZ ssz marshals the Attestation object
@@ -3247,7 +3248,7 @@ func (b *BeaconBlockBodyBellatrix) MarshalSSZTo(buf []byte) (dst []byte, err err
 	// Offset (9) 'ExecutionPayload'
 	dst = ssz.WriteOffset(dst, offset)
 	if b.ExecutionPayload == nil {
-		b.ExecutionPayload = new(ExecutionPayload)
+		b.ExecutionPayload = new(v1.ExecutionPayload)
 	}
 	offset += b.ExecutionPayload.SizeSSZ()
 
@@ -3503,7 +3504,7 @@ func (b *BeaconBlockBodyBellatrix) UnmarshalSSZ(buf []byte) error {
 	{
 		buf = tail[o9:]
 		if b.ExecutionPayload == nil {
-			b.ExecutionPayload = new(ExecutionPayload)
+			b.ExecutionPayload = new(v1.ExecutionPayload)
 		}
 		if err = b.ExecutionPayload.UnmarshalSSZ(buf); err != nil {
 			return err
@@ -3539,7 +3540,7 @@ func (b *BeaconBlockBodyBellatrix) SizeSSZ() (size int) {
 
 	// Field (9) 'ExecutionPayload'
 	if b.ExecutionPayload == nil {
-		b.ExecutionPayload = new(ExecutionPayload)
+		b.ExecutionPayload = new(v1.ExecutionPayload)
 	}
 	size += b.ExecutionPayload.SizeSSZ()
 
@@ -3668,379 +3669,6 @@ func (b *BeaconBlockBodyBellatrix) HashTreeRootWith(hh *ssz.Hasher) (err error)
 	return
 }
 
-// MarshalSSZ ssz marshals the ExecutionPayload object
-func (e *ExecutionPayload) MarshalSSZ() ([]byte, error) {
-	return ssz.MarshalSSZ(e)
-}
-
-// MarshalSSZTo ssz marshals the ExecutionPayload object to a target array
-func (e *ExecutionPayload) MarshalSSZTo(buf []byte) (dst []byte, err error) {
-	dst = buf
-	offset := int(508)
-
-	// Field (0) 'ParentHash'
-	if len(e.ParentHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ParentHash...)
-
-	// Field (1) 'FeeRecipient'
-	if len(e.FeeRecipient) != 20 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.FeeRecipient...)
-
-	// Field (2) 'StateRoot'
-	if len(e.StateRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.StateRoot...)
-
-	// Field (3) 'ReceiptRoot'
-	if len(e.ReceiptRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ReceiptRoot...)
-
-	// Field (4) 'LogsBloom'
-	if len(e.LogsBloom) != 256 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.LogsBloom...)
-
-	// Field (5) 'Random'
-	if len(e.Random) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.Random...)
-
-	// Field (6) 'BlockNumber'
-	dst = ssz.MarshalUint64(dst, e.BlockNumber)
-
-	// Field (7) 'GasLimit'
-	dst = ssz.MarshalUint64(dst, e.GasLimit)
-
-	// Field (8) 'GasUsed'
-	dst = ssz.MarshalUint64(dst, e.GasUsed)
-
-	// Field (9) 'Timestamp'
-	dst = ssz.MarshalUint64(dst, e.Timestamp)
-
-	// Offset (10) 'ExtraData'
-	dst = ssz.WriteOffset(dst, offset)
-	offset += len(e.ExtraData)
-
-	// Field (11) 'BaseFeePerGas'
-	if len(e.BaseFeePerGas) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.BaseFeePerGas...)
-
-	// Field (12) 'BlockHash'
-	if len(e.BlockHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.BlockHash...)
-
-	// Offset (13) 'Transactions'
-	dst = ssz.WriteOffset(dst, offset)
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		offset += 4
-		offset += len(e.Transactions[ii])
-	}
-
-	// Field (10) 'ExtraData'
-	if len(e.ExtraData) > 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	dst = append(dst, e.ExtraData...)
-
-	// Field (13) 'Transactions'
-	if len(e.Transactions) > 1048576 {
-		err = ssz.ErrListTooBig
-		return
-	}
-	{
-		offset = 4 * len(e.Transactions)
-		for ii := 0; ii < len(e.Transactions); ii++ {
-			dst = ssz.WriteOffset(dst, offset)
-			offset += len(e.Transactions[ii])
-		}
-	}
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		if len(e.Transactions[ii]) > 1073741824 {
-			err = ssz.ErrBytesLength
-			return
-		}
-		dst = append(dst, e.Transactions[ii]...)
-	}
-
-	return
-}
-
-// UnmarshalSSZ ssz unmarshals the ExecutionPayload object
-func (e *ExecutionPayload) UnmarshalSSZ(buf []byte) error {
-	var err error
-	size := uint64(len(buf))
-	if size < 508 {
-		return ssz.ErrSize
-	}
-
-	tail := buf
-	var o10, o13 uint64
-
-	// Field (0) 'ParentHash'
-	if cap(e.ParentHash) == 0 {
-		e.ParentHash = make([]byte, 0, len(buf[0:32]))
-	}
-	e.ParentHash = append(e.ParentHash, buf[0:32]...)
-
-	// Field (1) 'FeeRecipient'
-	if cap(e.FeeRecipient) == 0 {
-		e.FeeRecipient = make([]byte, 0, len(buf[32:52]))
-	}
-	e.FeeRecipient = append(e.FeeRecipient, buf[32:52]...)
-
-	// Field (2) 'StateRoot'
-	if cap(e.StateRoot) == 0 {
-		e.StateRoot = make([]byte, 0, len(buf[52:84]))
-	}
-	e.StateRoot = append(e.StateRoot, buf[52:84]...)
-
-	// Field (3) 'ReceiptRoot'
-	if cap(e.ReceiptRoot) == 0 {
-		e.ReceiptRoot = make([]byte, 0, len(buf[84:116]))
-	}
-	e.ReceiptRoot = append(e.ReceiptRoot, buf[84:116]...)
-
-	// Field (4) 'LogsBloom'
-	if cap(e.LogsBloom) == 0 {
-		e.LogsBloom = make([]byte, 0, len(buf[116:372]))
-	}
-	e.LogsBloom = append(e.LogsBloom, buf[116:372]...)
-
-	// Field (5) 'Random'
-	if cap(e.Random) == 0 {
-		e.Random = make([]byte, 0, len(buf[372:404]))
-	}
-	e.Random = append(e.Random, buf[372:404]...)
-
-	// Field (6) 'BlockNumber'
-	e.BlockNumber = ssz.UnmarshallUint64(buf[404:412])
-
-	// Field (7) 'GasLimit'
-	e.GasLimit = ssz.UnmarshallUint64(buf[412:420])
-
-	// Field (8) 'GasUsed'
-	e.GasUsed = ssz.UnmarshallUint64(buf[420:428])
-
-	// Field (9) 'Timestamp'
-	e.Timestamp = ssz.UnmarshallUint64(buf[428:436])
-
-	// Offset (10) 'ExtraData'
-	if o10 = ssz.ReadOffset(buf[436:440]); o10 > size {
-		return ssz.ErrOffset
-	}
-
-	if o10 < 508 {
-		return ssz.ErrInvalidVariableOffset
-	}
-
-	// Field (11) 'BaseFeePerGas'
-	if cap(e.BaseFeePerGas) == 0 {
-		e.BaseFeePerGas = make([]byte, 0, len(buf[440:472]))
-	}
-	e.BaseFeePerGas = append(e.BaseFeePerGas, buf[440:472]...)
-
-	// Field (12) 'BlockHash'
-	if cap(e.BlockHash) == 0 {
-		e.BlockHash = make([]byte, 0, len(buf[472:504]))
-	}
-	e.BlockHash = append(e.BlockHash, buf[472:504]...)
-
-	// Offset (13) 'Transactions'
-	if o13 = ssz.ReadOffset(buf[504:508]); o13 > size || o10 > o13 {
-		return ssz.ErrOffset
-	}
-
-	// Field (10) 'ExtraData'
-	{
-		buf = tail[o10:o13]
-		if len(buf) > 32 {
-			return ssz.ErrBytesLength
-		}
-		if cap(e.ExtraData) == 0 {
-			e.ExtraData = make([]byte, 0, len(buf))
-		}
-		e.ExtraData = append(e.ExtraData, buf...)
-	}
-
-	// Field (13) 'Transactions'
-	{
-		buf = tail[o13:]
-		num, err := ssz.DecodeDynamicLength(buf, 1048576)
-		if err != nil {
-			return err
-		}
-		e.Transactions = make([][]byte, num)
-		err = ssz.UnmarshalDynamic(buf, num, func(indx int, buf []byte) (err error) {
-			if len(buf) > 1073741824 {
-				return ssz.ErrBytesLength
-			}
-			if cap(e.Transactions[indx]) == 0 {
-				e.Transactions[indx] = make([]byte, 0, len(buf))
-			}
-			e.Transactions[indx] = append(e.Transactions[indx], buf...)
-			return nil
-		})
-		if err != nil {
-			return err
-		}
-	}
-	return err
-}
-
-// SizeSSZ returns the ssz encoded size in bytes for the ExecutionPayload object
-func (e *ExecutionPayload) SizeSSZ() (size int) {
-	size = 508
-
-	// Field (10) 'ExtraData'
-	size += len(e.ExtraData)
-
-	// Field (13) 'Transactions'
-	for ii := 0; ii < len(e.Transactions); ii++ {
-		size += 4
-		size += len(e.Transactions[ii])
-	}
-
-	return
-}
-
-// HashTreeRoot ssz hashes the ExecutionPayload object
-func (e *ExecutionPayload) HashTreeRoot() ([32]byte, error) {
-	return ssz.HashWithDefaultHasher(e)
-}
-
-// HashTreeRootWith ssz hashes the ExecutionPayload object with a hasher
-func (e *ExecutionPayload) HashTreeRootWith(hh *ssz.Hasher) (err error) {
-	indx := hh.Index()
-
-	// Field (0) 'ParentHash'
-	if len(e.ParentHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.ParentHash)
-
-	// Field (1) 'FeeRecipient'
-	if len(e.FeeRecipient) != 20 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.FeeRecipient)
-
-	// Field (2) 'StateRoot'
-	if len(e.StateRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.StateRoot)
-
-	// Field (3) 'ReceiptRoot'
-	if len(e.ReceiptRoot) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.ReceiptRoot)
-
-	// Field (4) 'LogsBloom'
-	if len(e.LogsBloom) != 256 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.LogsBloom)
-
-	// Field (5) 'Random'
-	if len(e.Random) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.Random)
-
-	// Field (6) 'BlockNumber'
-	hh.PutUint64(e.BlockNumber)
-
-	// Field (7) 'GasLimit'
-	hh.PutUint64(e.GasLimit)
-
-	// Field (8) 'GasUsed'
-	hh.PutUint64(e.GasUsed)
-
-	// Field (9) 'Timestamp'
-	hh.PutUint64(e.Timestamp)
-
-	// Field (10) 'ExtraData'
-	{
-		elemIndx := hh.Index()
-		byteLen := uint64(len(e.ExtraData))
-		if byteLen > 32 {
-			err = ssz.ErrIncorrectListSize
-			return
-		}
-		hh.PutBytes(e.ExtraData)
-		hh.MerkleizeWithMixin(elemIndx, byteLen, (32+31)/32)
-	}
-
-	// Field (11) 'BaseFeePerGas'
-	if len(e.BaseFeePerGas) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.BaseFeePerGas)
-
-	// Field (12) 'BlockHash'
-	if len(e.BlockHash) != 32 {
-		err = ssz.ErrBytesLength
-		return
-	}
-	hh.PutBytes(e.BlockHash)
-
-	// Field (13) 'Transactions'
-	{
-		subIndx := hh.Index()
-		num := uint64(len(e.Transactions))
-		if num > 1048576 {
-			err = ssz.ErrIncorrectListSize
-			return
-		}
-		for _, elem := range e.Transactions {
-			{
-				elemIndx := hh.Index()
-				byteLen := uint64(len(elem))
-				if byteLen > 1073741824 {
-					err = ssz.ErrIncorrectListSize
-					return
-				}
-				hh.AppendBytes32(elem)
-				hh.MerkleizeWithMixin(elemIndx, byteLen, (1073741824+31)/32)
-			}
-		}
-		hh.MerkleizeWithMixin(subIndx, num, 1048576)
-	}
-
-	hh.Merkleize(indx)
-	return
-}
-
 // MarshalSSZ ssz marshals the Deposit_Data object
 func (d *Deposit_Data) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(d)
diff --git a/proto/prysm/v1alpha1/wrapper/BUILD.bazel b/proto/prysm/v1alpha1/wrapper/BUILD.bazel
index 306f30b484..7fc74b2221 100644
--- a/proto/prysm/v1alpha1/wrapper/BUILD.bazel
+++ b/proto/prysm/v1alpha1/wrapper/BUILD.bazel
@@ -9,6 +9,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper",
     visibility = ["//visibility:public"],
     deps = [
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
         "//proto/prysm/v1alpha1/metadata:go_default_library",
@@ -26,6 +27,7 @@ go_test(
     deps = [
         ":go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//runtime/version:go_default_library",
         "//testing/assert:go_default_library",
diff --git a/proto/prysm/v1alpha1/wrapper/beacon_block.go b/proto/prysm/v1alpha1/wrapper/beacon_block.go
index 9c5adb3d79..a094214faa 100644
--- a/proto/prysm/v1alpha1/wrapper/beacon_block.go
+++ b/proto/prysm/v1alpha1/wrapper/beacon_block.go
@@ -3,6 +3,7 @@ package wrapper
 import (
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	eth "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/runtime/version"
@@ -290,7 +291,7 @@ func (w Phase0BeaconBlockBody) Proto() proto.Message {
 }
 
 // ExecutionPayload is a stub.
-func (_ Phase0BeaconBlockBody) ExecutionPayload() (*eth.ExecutionPayload, error) {
+func (_ Phase0BeaconBlockBody) ExecutionPayload() (*enginev1.ExecutionPayload, error) {
 	return nil, errors.New("ExecutionPayload is not supported in phase 0 block body")
 }
 
@@ -570,7 +571,7 @@ func (w altairBeaconBlockBody) Proto() proto.Message {
 }
 
 // ExecutionPayload is a stub.
-func (_ altairBeaconBlockBody) ExecutionPayload() (*eth.ExecutionPayload, error) {
+func (_ altairBeaconBlockBody) ExecutionPayload() (*enginev1.ExecutionPayload, error) {
 	return nil, errors.New("ExecutionPayload is not supported in altair block body")
 }
 
@@ -837,6 +838,6 @@ func (w bellatrixBeaconBlockBody) Proto() proto.Message {
 }
 
 // ExecutionPayload returns the Execution payload of the block body.
-func (w bellatrixBeaconBlockBody) ExecutionPayload() (*eth.ExecutionPayload, error) {
+func (w bellatrixBeaconBlockBody) ExecutionPayload() (*enginev1.ExecutionPayload, error) {
 	return w.b.ExecutionPayload, nil
 }
diff --git a/proto/prysm/v1alpha1/wrapper/beacon_block_test.go b/proto/prysm/v1alpha1/wrapper/beacon_block_test.go
index acc22d0678..a616bf366b 100644
--- a/proto/prysm/v1alpha1/wrapper/beacon_block_test.go
+++ b/proto/prysm/v1alpha1/wrapper/beacon_block_test.go
@@ -6,6 +6,7 @@ import (
 
 	types "github.com/prysmaticlabs/eth2-types"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/runtime/version"
@@ -694,7 +695,7 @@ func TestBellatrixBeaconBlockBody_Proto(t *testing.T) {
 }
 
 func TestBellatrixBeaconBlockBody_ExecutionPayload(t *testing.T) {
-	payloads := &ethpb.ExecutionPayload{
+	payloads := &enginev1.ExecutionPayload{
 		BlockNumber: 100,
 	}
 	body := &ethpb.BeaconBlockBodyBellatrix{ExecutionPayload: payloads}
diff --git a/testing/spectest/shared/bellatrix/ssz_static/BUILD.bazel b/testing/spectest/shared/bellatrix/ssz_static/BUILD.bazel
index f58d385b0d..f3e4e68da7 100644
--- a/testing/spectest/shared/bellatrix/ssz_static/BUILD.bazel
+++ b/testing/spectest/shared/bellatrix/ssz_static/BUILD.bazel
@@ -8,6 +8,7 @@ go_library(
     visibility = ["//testing/spectest:__subpackages__"],
     deps = [
         "//beacon-chain/state/v3:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//testing/require:go_default_library",
         "//testing/spectest/shared/common/ssz_static:go_default_library",
diff --git a/testing/spectest/shared/bellatrix/ssz_static/ssz_static.go b/testing/spectest/shared/bellatrix/ssz_static/ssz_static.go
index 1c5d1dce17..df2d470a6d 100644
--- a/testing/spectest/shared/bellatrix/ssz_static/ssz_static.go
+++ b/testing/spectest/shared/bellatrix/ssz_static/ssz_static.go
@@ -7,6 +7,7 @@ import (
 
 	fssz "github.com/ferranbt/fastssz"
 	v3 "github.com/prysmaticlabs/prysm/beacon-chain/state/v3"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/testing/require"
 	common "github.com/prysmaticlabs/prysm/testing/spectest/shared/common/ssz_static"
@@ -34,7 +35,7 @@ func unmarshalledSSZ(t *testing.T, serializedBytes []byte, folderName string) (i
 	var obj interface{}
 	switch folderName {
 	case "ExecutionPayload":
-		obj = &ethpb.ExecutionPayload{}
+		obj = &enginev1.ExecutionPayload{}
 	case "ExecutionPayloadHeader":
 		obj = &ethpb.ExecutionPayloadHeader{}
 	case "Attestation":
diff --git a/testing/util/BUILD.bazel b/testing/util/BUILD.bazel
index 8b62d83d38..0db74a7dd8 100644
--- a/testing/util/BUILD.bazel
+++ b/testing/util/BUILD.bazel
@@ -40,6 +40,7 @@ go_library(
         "//crypto/hash:go_default_library",
         "//crypto/rand:go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/eth/v1:go_default_library",
         "//proto/eth/v2:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
diff --git a/testing/util/bellatrix_state.go b/testing/util/bellatrix_state.go
index f8212a8c57..808add0ef0 100644
--- a/testing/util/bellatrix_state.go
+++ b/testing/util/bellatrix_state.go
@@ -13,6 +13,7 @@ import (
 	"github.com/prysmaticlabs/prysm/config/params"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 )
 
@@ -192,11 +193,11 @@ func buildGenesisBeaconStateBellatrix(genesisTime uint64, preState state.BeaconS
 			SyncCommitteeBits:      make([]byte, len(bitfield.NewBitvector512())),
 			SyncCommitteeSignature: make([]byte, 96),
 		},
-		ExecutionPayload: &ethpb.ExecutionPayload{
+		ExecutionPayload: &enginev1.ExecutionPayload{
 			ParentHash:    make([]byte, 32),
 			FeeRecipient:  make([]byte, 20),
 			StateRoot:     make([]byte, 32),
-			ReceiptRoot:   make([]byte, 32),
+			ReceiptsRoot:  make([]byte, 32),
 			LogsBloom:     make([]byte, 256),
 			Random:        make([]byte, 32),
 			BaseFeePerGas: make([]byte, 32),
diff --git a/testing/util/block.go b/testing/util/block.go
index 87b6e7b9a0..9c8e98f19c 100644
--- a/testing/util/block.go
+++ b/testing/util/block.go
@@ -15,6 +15,7 @@ import (
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/crypto/rand"
 	"github.com/prysmaticlabs/prysm/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
 	v1 "github.com/prysmaticlabs/prysm/proto/eth/v1"
 	v2 "github.com/prysmaticlabs/prysm/proto/eth/v2"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
@@ -665,11 +666,11 @@ func HydrateBeaconBlockBodyBellatrix(b *ethpb.BeaconBlockBodyBellatrix) *ethpb.B
 		}
 	}
 	if b.ExecutionPayload == nil {
-		b.ExecutionPayload = &ethpb.ExecutionPayload{
+		b.ExecutionPayload = &enginev1.ExecutionPayload{
 			ParentHash:    make([]byte, 32),
 			FeeRecipient:  make([]byte, 20),
 			StateRoot:     make([]byte, 32),
-			ReceiptRoot:   make([]byte, 32),
+			ReceiptsRoot:  make([]byte, 32),
 			LogsBloom:     make([]byte, 256),
 			Random:        make([]byte, 32),
 			BaseFeePerGas: make([]byte, 32),