creating execution payload copy and fuzz tests (#14246)

* creating execution payload copy and fuzz tests * fixing build * removing unused code
2026-01-08 21:08:10 -05:00 · 2024-07-22 08:34:42 -05:00
parent fd9321f6ba
commit b1be6cd20b
7 changed files with 212 additions and 270 deletions
--- a/beacon-chain/state/state-native/getters_payload_header.go
+++ b/beacon-chain/state/state-native/getters_payload_header.go
@@ -5,8 +5,6 @@ import (

 	"github.com/prysmaticlabs/prysm/v5/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v5/consensus-types/interfaces"
-	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
-	ethpb "github.com/prysmaticlabs/prysm/v5/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v5/runtime/version"
 )

@@ -21,34 +19,14 @@ func (b *BeaconState) LatestExecutionPayloadHeader() (interfaces.ExecutionData,

 	switch b.version {
 	case version.Bellatrix:
-		return blocks.WrappedExecutionPayloadHeader(b.latestExecutionPayloadHeaderVal())
+		return blocks.WrappedExecutionPayloadHeader(b.latestExecutionPayloadHeader.Copy())
 	case version.Capella:
-		return blocks.WrappedExecutionPayloadHeaderCapella(b.latestExecutionPayloadHeaderCapellaVal())
+		return blocks.WrappedExecutionPayloadHeaderCapella(b.latestExecutionPayloadHeaderCapella.Copy())
 	case version.Deneb:
-		return blocks.WrappedExecutionPayloadHeaderDeneb(b.latestExecutionPayloadHeaderDenebVal())
+		return blocks.WrappedExecutionPayloadHeaderDeneb(b.latestExecutionPayloadHeaderDeneb.Copy())
 	case version.Electra:
-		return blocks.WrappedExecutionPayloadHeaderElectra(b.latestExecutionPayloadHeaderElectraVal())
+		return blocks.WrappedExecutionPayloadHeaderElectra(b.latestExecutionPayloadHeaderElectra.Copy())
 	default:
 		return nil, fmt.Errorf("unsupported version (%s) for latest execution payload header", version.String(b.version))
 	}
 }
-
-// latestExecutionPayloadHeaderVal of the beacon state.
-// This assumes that a lock is already held on BeaconState.
-func (b *BeaconState) latestExecutionPayloadHeaderVal() *enginev1.ExecutionPayloadHeader {
-	return ethpb.CopyExecutionPayloadHeader(b.latestExecutionPayloadHeader)
-}
-
-// latestExecutionPayloadHeaderCapellaVal of the beacon state.
-// This assumes that a lock is already held on BeaconState.
-func (b *BeaconState) latestExecutionPayloadHeaderCapellaVal() *enginev1.ExecutionPayloadHeaderCapella {
-	return ethpb.CopyExecutionPayloadHeaderCapella(b.latestExecutionPayloadHeaderCapella)
-}
-
-func (b *BeaconState) latestExecutionPayloadHeaderDenebVal() *enginev1.ExecutionPayloadHeaderDeneb {
-	return ethpb.CopyExecutionPayloadHeaderDeneb(b.latestExecutionPayloadHeaderDeneb)
-}
-
-func (b *BeaconState) latestExecutionPayloadHeaderElectraVal() *enginev1.ExecutionPayloadHeaderElectra {
-	return ethpb.CopyExecutionPayloadHeaderElectra(b.latestExecutionPayloadHeaderElectra)
-}
--- a/beacon-chain/state/state-native/getters_state.go
+++ b/beacon-chain/state/state-native/getters_state.go
@@ -314,7 +314,7 @@ func (b *BeaconState) ToProto() interface{} {
 			InactivityScores:             inactivityScores,
 			CurrentSyncCommittee:         b.currentSyncCommitteeVal(),
 			NextSyncCommittee:            b.nextSyncCommitteeVal(),
-			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeaderVal(),
+			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeader.Copy(),
 		}
 	case version.Capella:
 		return &ethpb.BeaconStateCapella{
@@ -342,7 +342,7 @@ func (b *BeaconState) ToProto() interface{} {
 			InactivityScores:             inactivityScores,
 			CurrentSyncCommittee:         b.currentSyncCommitteeVal(),
 			NextSyncCommittee:            b.nextSyncCommitteeVal(),
-			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeaderCapellaVal(),
+			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeaderCapella.Copy(),
 			NextWithdrawalIndex:          b.nextWithdrawalIndex,
 			NextWithdrawalValidatorIndex: b.nextWithdrawalValidatorIndex,
 			HistoricalSummaries:          b.historicalSummariesVal(),
@@ -373,7 +373,7 @@ func (b *BeaconState) ToProto() interface{} {
 			InactivityScores:             b.inactivityScoresVal(),
 			CurrentSyncCommittee:         b.currentSyncCommitteeVal(),
 			NextSyncCommittee:            b.nextSyncCommitteeVal(),
-			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeaderDenebVal(),
+			LatestExecutionPayloadHeader: b.latestExecutionPayloadHeaderDeneb.Copy(),
 			NextWithdrawalIndex:          b.nextWithdrawalIndex,
 			NextWithdrawalValidatorIndex: b.nextWithdrawalValidatorIndex,
 			HistoricalSummaries:          b.historicalSummariesVal(),
@@ -404,7 +404,7 @@ func (b *BeaconState) ToProto() interface{} {
 			InactivityScores:              b.inactivityScoresVal(),
 			CurrentSyncCommittee:          b.currentSyncCommitteeVal(),
 			NextSyncCommittee:             b.nextSyncCommitteeVal(),
-			LatestExecutionPayloadHeader:  b.latestExecutionPayloadHeaderElectraVal(),
+			LatestExecutionPayloadHeader:  b.latestExecutionPayloadHeaderElectra.Copy(),
 			NextWithdrawalIndex:           b.nextWithdrawalIndex,
 			NextWithdrawalValidatorIndex:  b.nextWithdrawalValidatorIndex,
 			HistoricalSummaries:           b.historicalSummariesVal(),
--- a/beacon-chain/state/state-native/state_trie.go
+++ b/beacon-chain/state/state-native/state_trie.go
@@ -907,10 +907,10 @@ func (b *BeaconState) Copy() state.BeaconState {
 		finalizedCheckpoint:                 b.finalizedCheckpointVal(),
 		currentSyncCommittee:                b.currentSyncCommitteeVal(),
 		nextSyncCommittee:                   b.nextSyncCommitteeVal(),
-		latestExecutionPayloadHeader:        b.latestExecutionPayloadHeaderVal(),
-		latestExecutionPayloadHeaderCapella: b.latestExecutionPayloadHeaderCapellaVal(),
-		latestExecutionPayloadHeaderDeneb:   b.latestExecutionPayloadHeaderDenebVal(),
-		latestExecutionPayloadHeaderElectra: b.latestExecutionPayloadHeaderElectraVal(),
+		latestExecutionPayloadHeader:        b.latestExecutionPayloadHeader.Copy(),
+		latestExecutionPayloadHeaderCapella: b.latestExecutionPayloadHeaderCapella.Copy(),
+		latestExecutionPayloadHeaderDeneb:   b.latestExecutionPayloadHeaderDeneb.Copy(),
+		latestExecutionPayloadHeaderElectra: b.latestExecutionPayloadHeaderElectra.Copy(),

 		id: types.Enumerator.Inc(),

--- a/proto/engine/v1/execution_engine.go
+++ b/proto/engine/v1/execution_engine.go
@@ -15,6 +15,7 @@ func copySlice[T any, C copier[T]](original []C) []T {
 	return newSlice
 }

+// Copy --
 func (w *Withdrawal) Copy() *Withdrawal {
 	if w == nil {
 		return nil
@@ -28,6 +29,7 @@ func (w *Withdrawal) Copy() *Withdrawal {
 	}
 }

+// Copy --
 func (d *DepositRequest) Copy() *DepositRequest {
 	if d == nil {
 		return nil
@@ -41,6 +43,7 @@ func (d *DepositRequest) Copy() *DepositRequest {
 	}
 }

+// Copy --
 func (wr *WithdrawalRequest) Copy() *WithdrawalRequest {
 	if wr == nil {
 		return nil
@@ -52,6 +55,7 @@ func (wr *WithdrawalRequest) Copy() *WithdrawalRequest {
 	}
 }

+// Copy --
 func (cr *ConsolidationRequest) Copy() *ConsolidationRequest {
 	if cr == nil {
 		return nil
@@ -63,6 +67,7 @@ func (cr *ConsolidationRequest) Copy() *ConsolidationRequest {
 	}
 }

+// Copy -- Electra
 func (payload *ExecutionPayloadElectra) Copy() *ExecutionPayloadElectra {
 	if payload == nil {
 		return nil
@@ -90,3 +95,181 @@ func (payload *ExecutionPayloadElectra) Copy() *ExecutionPayloadElectra {
 		ConsolidationRequests: copySlice(payload.ConsolidationRequests),
 	}
 }
+
+// Copy -- Deneb
+func (payload *ExecutionPayloadDeneb) Copy() *ExecutionPayloadDeneb {
+	if payload == nil {
+		return nil
+	}
+	return &ExecutionPayloadDeneb{
+		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:   payload.BlockNumber,
+		GasLimit:      payload.GasLimit,
+		GasUsed:       payload.GasUsed,
+		Timestamp:     payload.Timestamp,
+		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
+		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
+		Withdrawals:   copySlice(payload.Withdrawals),
+		BlobGasUsed:   payload.BlobGasUsed,
+		ExcessBlobGas: payload.ExcessBlobGas,
+	}
+}
+
+// Copy -- Capella
+func (payload *ExecutionPayloadCapella) Copy() *ExecutionPayloadCapella {
+	if payload == nil {
+		return nil
+	}
+
+	return &ExecutionPayloadCapella{
+		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:   payload.BlockNumber,
+		GasLimit:      payload.GasLimit,
+		GasUsed:       payload.GasUsed,
+		Timestamp:     payload.Timestamp,
+		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
+		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
+		Withdrawals:   copySlice(payload.Withdrawals),
+	}
+}
+
+// Copy -- Bellatrix
+func (payload *ExecutionPayload) Copy() *ExecutionPayload {
+	if payload == nil {
+		return nil
+	}
+
+	return &ExecutionPayload{
+		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:   payload.BlockNumber,
+		GasLimit:      payload.GasLimit,
+		GasUsed:       payload.GasUsed,
+		Timestamp:     payload.Timestamp,
+		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
+		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
+	}
+}
+
+// Copy -- Electra
+func (payload *ExecutionPayloadHeaderElectra) Copy() *ExecutionPayloadHeaderElectra {
+	if payload == nil {
+		return nil
+	}
+
+	return &ExecutionPayloadHeaderElectra{
+		ParentHash:                bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:              bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:                 bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:              bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:                 bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:                bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:               payload.BlockNumber,
+		GasLimit:                  payload.GasLimit,
+		GasUsed:                   payload.GasUsed,
+		Timestamp:                 payload.Timestamp,
+		ExtraData:                 bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas:             bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:                 bytesutil.SafeCopyBytes(payload.BlockHash),
+		TransactionsRoot:          bytesutil.SafeCopyBytes(payload.TransactionsRoot),
+		WithdrawalsRoot:           bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
+		BlobGasUsed:               payload.BlobGasUsed,
+		ExcessBlobGas:             payload.ExcessBlobGas,
+		DepositRequestsRoot:       bytesutil.SafeCopyBytes(payload.DepositRequestsRoot),
+		WithdrawalRequestsRoot:    bytesutil.SafeCopyBytes(payload.WithdrawalRequestsRoot),
+		ConsolidationRequestsRoot: bytesutil.SafeCopyBytes(payload.ConsolidationRequestsRoot),
+	}
+}
+
+// Copy -- Deneb
+func (payload *ExecutionPayloadHeaderDeneb) Copy() *ExecutionPayloadHeaderDeneb {
+	if payload == nil {
+		return nil
+	}
+	return &ExecutionPayloadHeaderDeneb{
+		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:      payload.BlockNumber,
+		GasLimit:         payload.GasLimit,
+		GasUsed:          payload.GasUsed,
+		Timestamp:        payload.Timestamp,
+		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
+		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
+		WithdrawalsRoot:  bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
+		BlobGasUsed:      payload.BlobGasUsed,
+		ExcessBlobGas:    payload.ExcessBlobGas,
+	}
+}
+
+// Copy -- Capella
+func (payload *ExecutionPayloadHeaderCapella) Copy() *ExecutionPayloadHeaderCapella {
+	if payload == nil {
+		return nil
+	}
+	return &ExecutionPayloadHeaderCapella{
+		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:      payload.BlockNumber,
+		GasLimit:         payload.GasLimit,
+		GasUsed:          payload.GasUsed,
+		Timestamp:        payload.Timestamp,
+		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
+		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
+		WithdrawalsRoot:  bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
+	}
+}
+
+// Copy -- Bellatrix
+func (payload *ExecutionPayloadHeader) Copy() *ExecutionPayloadHeader {
+	if payload == nil {
+		return nil
+	}
+	return &ExecutionPayloadHeader{
+		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
+		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
+		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
+		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
+		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
+		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
+		BlockNumber:      payload.BlockNumber,
+		GasLimit:         payload.GasLimit,
+		GasUsed:          payload.GasUsed,
+		Timestamp:        payload.Timestamp,
+		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
+		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
+		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
+		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
+	}
+}
--- a/proto/engine/v1/execution_engine_fuzz_test.go
+++ b/proto/engine/v1/execution_engine_fuzz_test.go
@@ -11,6 +11,16 @@ import (

 func TestCopyExecutionPayload_Fuzz(t *testing.T) {
 	fuzzCopies(t, &enginev1.ExecutionPayloadElectra{})
+	fuzzCopies(t, &enginev1.ExecutionPayloadDeneb{})
+	fuzzCopies(t, &enginev1.ExecutionPayloadCapella{})
+	fuzzCopies(t, &enginev1.ExecutionPayload{})
+}
+
+func TestCopyExecutionPayloadHeader_Fuzz(t *testing.T) {
+	fuzzCopies(t, &enginev1.ExecutionPayloadHeaderElectra{})
+	fuzzCopies(t, &enginev1.ExecutionPayloadHeaderDeneb{})
+	fuzzCopies(t, &enginev1.ExecutionPayloadHeaderCapella{})
+	fuzzCopies(t, &enginev1.ExecutionPayloadHeader{})
 }

 func fuzzCopies[T any, C enginev1.Copier[T]](t *testing.T, obj C) {
--- a/proto/prysm/v1alpha1/cloners.go
+++ b/proto/prysm/v1alpha1/cloners.go
@@ -2,7 +2,6 @@ package eth

 import (
 	"github.com/prysmaticlabs/prysm/v5/encoding/bytesutil"
-	enginev1 "github.com/prysmaticlabs/prysm/v5/proto/engine/v1"
 )

 // CopyETH1Data copies the provided eth1data object.
@@ -474,7 +473,7 @@ func CopyBeaconBlockBodyBellatrix(body *BeaconBlockBodyBellatrix) *BeaconBlockBo
 		Deposits:          CopyDeposits(body.Deposits),
 		VoluntaryExits:    CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:     CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayload:  CopyExecutionPayload(body.ExecutionPayload),
+		ExecutionPayload:  body.ExecutionPayload.Copy(),
 	}
 }

@@ -518,7 +517,7 @@ func CopyBeaconBlockBodyCapella(body *BeaconBlockBodyCapella) *BeaconBlockBodyCa
 		Deposits:              CopyDeposits(body.Deposits),
 		VoluntaryExits:        CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:         CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayload:      CopyExecutionPayloadCapella(body.ExecutionPayload),
+		ExecutionPayload:      body.ExecutionPayload.Copy(),
 		BlsToExecutionChanges: CopyBLSToExecutionChanges(body.BlsToExecutionChanges),
 	}
 }
@@ -563,7 +562,7 @@ func CopyBlindedBeaconBlockBodyCapella(body *BlindedBeaconBlockBodyCapella) *Bli
 		Deposits:               CopyDeposits(body.Deposits),
 		VoluntaryExits:         CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:          CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayloadHeader: CopyExecutionPayloadHeaderCapella(body.ExecutionPayloadHeader),
+		ExecutionPayloadHeader: body.ExecutionPayloadHeader.Copy(),
 		BlsToExecutionChanges:  CopyBLSToExecutionChanges(body.BlsToExecutionChanges),
 	}
 }
@@ -608,7 +607,7 @@ func CopyBlindedBeaconBlockBodyDeneb(body *BlindedBeaconBlockBodyDeneb) *Blinded
 		Deposits:               CopyDeposits(body.Deposits),
 		VoluntaryExits:         CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:          CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayloadHeader: CopyExecutionPayloadHeaderDeneb(body.ExecutionPayloadHeader),
+		ExecutionPayloadHeader: body.ExecutionPayloadHeader.Copy(),
 		BlsToExecutionChanges:  CopyBLSToExecutionChanges(body.BlsToExecutionChanges),
 		BlobKzgCommitments:     CopyBlobKZGs(body.BlobKzgCommitments),
 	}
@@ -654,108 +653,12 @@ func CopyBlindedBeaconBlockBodyElectra(body *BlindedBeaconBlockBodyElectra) *Bli
 		Deposits:               CopyDeposits(body.Deposits),
 		VoluntaryExits:         CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:          CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayloadHeader: CopyExecutionPayloadHeaderElectra(body.ExecutionPayloadHeader),
+		ExecutionPayloadHeader: body.ExecutionPayloadHeader.Copy(),
 		BlsToExecutionChanges:  CopyBLSToExecutionChanges(body.BlsToExecutionChanges),
 		BlobKzgCommitments:     CopyBlobKZGs(body.BlobKzgCommitments),
 	}
 }

-// CopyExecutionPayload copies the provided execution payload.
-func CopyExecutionPayload(payload *enginev1.ExecutionPayload) *enginev1.ExecutionPayload {
-	if payload == nil {
-		return nil
-	}
-
-	return &enginev1.ExecutionPayload{
-		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:   payload.BlockNumber,
-		GasLimit:      payload.GasLimit,
-		GasUsed:       payload.GasUsed,
-		Timestamp:     payload.Timestamp,
-		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
-		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
-	}
-}
-
-// CopyExecutionPayloadCapella copies the provided execution payload.
-func CopyExecutionPayloadCapella(payload *enginev1.ExecutionPayloadCapella) *enginev1.ExecutionPayloadCapella {
-	if payload == nil {
-		return nil
-	}
-
-	return &enginev1.ExecutionPayloadCapella{
-		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:   payload.BlockNumber,
-		GasLimit:      payload.GasLimit,
-		GasUsed:       payload.GasUsed,
-		Timestamp:     payload.Timestamp,
-		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
-		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
-		Withdrawals:   copySlice(payload.Withdrawals),
-	}
-}
-
-// CopyExecutionPayloadHeader copies the provided execution payload object.
-func CopyExecutionPayloadHeader(payload *enginev1.ExecutionPayloadHeader) *enginev1.ExecutionPayloadHeader {
-	if payload == nil {
-		return nil
-	}
-	return &enginev1.ExecutionPayloadHeader{
-		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:      payload.BlockNumber,
-		GasLimit:         payload.GasLimit,
-		GasUsed:          payload.GasUsed,
-		Timestamp:        payload.Timestamp,
-		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
-		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
-	}
-}
-
-// CopyExecutionPayloadHeaderCapella copies the provided execution payload object.
-func CopyExecutionPayloadHeaderCapella(payload *enginev1.ExecutionPayloadHeaderCapella) *enginev1.ExecutionPayloadHeaderCapella {
-	if payload == nil {
-		return nil
-	}
-	return &enginev1.ExecutionPayloadHeaderCapella{
-		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:      payload.BlockNumber,
-		GasLimit:         payload.GasLimit,
-		GasUsed:          payload.GasUsed,
-		Timestamp:        payload.Timestamp,
-		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
-		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
-		WithdrawalsRoot:  bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
-	}
-}
-
 // CopySignedBlindedBeaconBlockBellatrix copies the provided SignedBlindedBeaconBlockBellatrix.
 func CopySignedBlindedBeaconBlockBellatrix(sigBlock *SignedBlindedBeaconBlockBellatrix) *SignedBlindedBeaconBlockBellatrix {
 	if sigBlock == nil {
@@ -796,7 +699,7 @@ func CopyBlindedBeaconBlockBodyBellatrix(body *BlindedBeaconBlockBodyBellatrix)
 		Deposits:               CopyDeposits(body.Deposits),
 		VoluntaryExits:         CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:          CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayloadHeader: CopyExecutionPayloadHeader(body.ExecutionPayloadHeader),
+		ExecutionPayloadHeader: body.ExecutionPayloadHeader.Copy(),
 	}
 }

@@ -865,64 +768,12 @@ func CopyBeaconBlockBodyDeneb(body *BeaconBlockBodyDeneb) *BeaconBlockBodyDeneb
 		Deposits:              CopyDeposits(body.Deposits),
 		VoluntaryExits:        CopySignedVoluntaryExits(body.VoluntaryExits),
 		SyncAggregate:         CopySyncAggregate(body.SyncAggregate),
-		ExecutionPayload:      CopyExecutionPayloadDeneb(body.ExecutionPayload),
+		ExecutionPayload:      body.ExecutionPayload.Copy(),
 		BlsToExecutionChanges: CopyBLSToExecutionChanges(body.BlsToExecutionChanges),
 		BlobKzgCommitments:    CopyBlobKZGs(body.BlobKzgCommitments),
 	}
 }

-// CopyExecutionPayloadHeaderDeneb copies the provided execution payload object.
-func CopyExecutionPayloadHeaderDeneb(payload *enginev1.ExecutionPayloadHeaderDeneb) *enginev1.ExecutionPayloadHeaderDeneb {
-	if payload == nil {
-		return nil
-	}
-	return &enginev1.ExecutionPayloadHeaderDeneb{
-		ParentHash:       bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:     bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:        bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:     bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:        bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:       bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:      payload.BlockNumber,
-		GasLimit:         payload.GasLimit,
-		GasUsed:          payload.GasUsed,
-		Timestamp:        payload.Timestamp,
-		ExtraData:        bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas:    bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:        bytesutil.SafeCopyBytes(payload.BlockHash),
-		TransactionsRoot: bytesutil.SafeCopyBytes(payload.TransactionsRoot),
-		WithdrawalsRoot:  bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
-		BlobGasUsed:      payload.BlobGasUsed,
-		ExcessBlobGas:    payload.ExcessBlobGas,
-	}
-}
-
-// CopyExecutionPayloadDeneb copies the provided execution payload.
-func CopyExecutionPayloadDeneb(payload *enginev1.ExecutionPayloadDeneb) *enginev1.ExecutionPayloadDeneb {
-	if payload == nil {
-		return nil
-	}
-	return &enginev1.ExecutionPayloadDeneb{
-		ParentHash:    bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:  bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:     bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:  bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:     bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:    bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:   payload.BlockNumber,
-		GasLimit:      payload.GasLimit,
-		GasUsed:       payload.GasUsed,
-		Timestamp:     payload.Timestamp,
-		ExtraData:     bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas: bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:     bytesutil.SafeCopyBytes(payload.BlockHash),
-		Transactions:  bytesutil.SafeCopy2dBytes(payload.Transactions),
-		Withdrawals:   copySlice(payload.Withdrawals),
-		BlobGasUsed:   payload.BlobGasUsed,
-		ExcessBlobGas: payload.ExcessBlobGas,
-	}
-}
-
 // CopySignedBeaconBlockElectra copies the provided SignedBeaconBlockElectra.
 func CopySignedBeaconBlockElectra(sigBlock *SignedBeaconBlockElectra) *SignedBeaconBlockElectra {
 	if sigBlock == nil {
@@ -969,34 +820,6 @@ func CopyBeaconBlockBodyElectra(body *BeaconBlockBodyElectra) *BeaconBlockBodyEl
 	}
 }

-func CopyExecutionPayloadHeaderElectra(payload *enginev1.ExecutionPayloadHeaderElectra) *enginev1.ExecutionPayloadHeaderElectra {
-	if payload == nil {
-		return nil
-	}
-	return &enginev1.ExecutionPayloadHeaderElectra{
-		ParentHash:                bytesutil.SafeCopyBytes(payload.ParentHash),
-		FeeRecipient:              bytesutil.SafeCopyBytes(payload.FeeRecipient),
-		StateRoot:                 bytesutil.SafeCopyBytes(payload.StateRoot),
-		ReceiptsRoot:              bytesutil.SafeCopyBytes(payload.ReceiptsRoot),
-		LogsBloom:                 bytesutil.SafeCopyBytes(payload.LogsBloom),
-		PrevRandao:                bytesutil.SafeCopyBytes(payload.PrevRandao),
-		BlockNumber:               payload.BlockNumber,
-		GasLimit:                  payload.GasLimit,
-		GasUsed:                   payload.GasUsed,
-		Timestamp:                 payload.Timestamp,
-		ExtraData:                 bytesutil.SafeCopyBytes(payload.ExtraData),
-		BaseFeePerGas:             bytesutil.SafeCopyBytes(payload.BaseFeePerGas),
-		BlockHash:                 bytesutil.SafeCopyBytes(payload.BlockHash),
-		TransactionsRoot:          bytesutil.SafeCopyBytes(payload.TransactionsRoot),
-		WithdrawalsRoot:           bytesutil.SafeCopyBytes(payload.WithdrawalsRoot),
-		BlobGasUsed:               payload.BlobGasUsed,
-		ExcessBlobGas:             payload.ExcessBlobGas,
-		DepositRequestsRoot:       bytesutil.SafeCopyBytes(payload.DepositRequestsRoot),
-		WithdrawalRequestsRoot:    bytesutil.SafeCopyBytes(payload.WithdrawalRequestsRoot),
-		ConsolidationRequestsRoot: bytesutil.SafeCopyBytes(payload.ConsolidationRequestsRoot),
-	}
-}
-
 // CopyHistoricalSummaries copies the historical summaries.
 func CopyHistoricalSummaries(summaries []*HistoricalSummary) []*HistoricalSummary {
 	if summaries == nil {
@@ -1055,16 +878,3 @@ func CopyPendingBalanceDeposits(pbd []*PendingBalanceDeposit) []*PendingBalanceD
 	}
 	return newPbd
 }
-
-type cloneable[T any] interface {
-	Copy() T
-}
-
-func copySlice[T any, C cloneable[T]](original []C) []T {
-	// Create a new slice with the same length as the original
-	newSlice := make([]T, len(original))
-	for i := 0; i < len(newSlice); i++ {
-		newSlice[i] = original[i].Copy()
-	}
-	return newSlice
-}
--- a/proto/prysm/v1alpha1/cloners_test.go
+++ b/proto/prysm/v1alpha1/cloners_test.go
@@ -309,36 +309,6 @@ func TestCopyPendingAttestationSlice(t *testing.T) {
 	}
 }

-func TestCopyPayloadHeader(t *testing.T) {
-	p := genPayloadHeader()
-
-	got := v1alpha1.CopyExecutionPayloadHeader(p)
-	if !reflect.DeepEqual(got, p) {
-		t.Errorf("CopyExecutionPayloadHeader() = %v, want %v", got, p)
-	}
-	assert.NotEmpty(t, got, "Copied execution payload header has empty fields")
-}
-
-func TestCopyPayloadHeaderCapella(t *testing.T) {
-	p := genPayloadHeaderCapella()
-
-	got := v1alpha1.CopyExecutionPayloadHeaderCapella(p)
-	if !reflect.DeepEqual(got, p) {
-		t.Errorf("TestCopyPayloadHeaderCapella() = %v, want %v", got, p)
-	}
-	assert.NotEmpty(t, got, "Copied execution payload header has empty fields")
-}
-
-func TestCopyPayloadHeaderDeneb(t *testing.T) {
-	p := genPayloadHeaderDeneb()
-
-	got := v1alpha1.CopyExecutionPayloadHeaderDeneb(p)
-	if !reflect.DeepEqual(got, p) {
-		t.Errorf("TestCopyPayloadHeaderDeneb() = %v, want %v", got, p)
-	}
-	assert.NotEmpty(t, got, "Copied execution payload header has empty fields")
-}
-
 func TestCopySignedBeaconBlockBellatrix(t *testing.T) {
 	sbb := genSignedBeaconBlockBellatrix()

@@ -638,15 +608,6 @@ func TestCopyBeaconBlockBodyElectra(t *testing.T) {
 	}
 }

-func TestCopyExecutionPayloadHeaderElectra(t *testing.T) {
-	p := genExecutionPayloadHeaderElectra()
-
-	got := v1alpha1.CopyExecutionPayloadHeaderElectra(p)
-	if !reflect.DeepEqual(got, p) {
-		t.Errorf("TestCopyExecutionPayloadHeaderElectra() = %v, want %v", got, p)
-	}
-}
-
 func TestCopyPendingPartialWithdrawals(t *testing.T) {
 	ppws := genPendingPartialWithdrawals(10)