update lightclient code for gloas

This PR implements
[process_payload_attestation](https://github.com/ethereum/consensus-specs/blob/master/specs/gloas/beacon-chain.md#new-process_payload_attestation)
and spec tests

api/server/structs/block.go

@@ -503,3 +503,77 @@ func (s *SignedBlindedBeaconBlockFulu) MessageRawJson() ([]byte, error) {
 func (s *SignedBlindedBeaconBlockFulu) SigString() string {
 	return s.Signature
 }
+
+// ----------------------------------------------------------------------------
+// Gloas
+// ----------------------------------------------------------------------------
+
+type ExecutionPayloadBid struct {
+	ParentBlockHash        string `json:"parent_block_hash"`
+	ParentBlockRoot        string `json:"parent_block_root"`
+	BlockHash              string `json:"block_hash"`
+	PrevRandao             string `json:"prev_randao"`
+	FeeRecipient           string `json:"fee_recipient"`
+	GasLimit               string `json:"gas_limit"`
+	BuilderIndex           string `json:"builder_index"`
+	Slot                   string `json:"slot"`
+	Value                  string `json:"value"`
+	ExecutionPayment       string `json:"execution_payment"`
+	BlobKzgCommitmentsRoot string `json:"blob_kzg_commitments_root"`
+}
+
+type SignedExecutionPayloadBid struct {
+	Message   *ExecutionPayloadBid `json:"message"`
+	Signature string               `json:"signature"`
+}
+
+type PayloadAttestationData struct {
+	BeaconBlockRoot   string `json:"beacon_block_root"`
+	Slot              string `json:"slot"`
+	PayloadPresent    bool   `json:"payload_present"`
+	BlobDataAvailable bool   `json:"blob_data_available"`
+}
+
+type PayloadAttestation struct {
+	AggregationBits string                  `json:"aggregation_bits"`
+	Data            *PayloadAttestationData `json:"data"`
+	Signature       string                  `json:"signature"`
+}
+
+type BeaconBlockBodyGloas struct {
+	RandaoReveal              string                        `json:"randao_reveal"`
+	Eth1Data                  *Eth1Data                     `json:"eth1_data"`
+	Graffiti                  string                        `json:"graffiti"`
+	ProposerSlashings         []*ProposerSlashing           `json:"proposer_slashings"`
+	AttesterSlashings         []*AttesterSlashingElectra    `json:"attester_slashings"`
+	Attestations              []*AttestationElectra         `json:"attestations"`
+	Deposits                  []*Deposit                    `json:"deposits"`
+	VoluntaryExits            []*SignedVoluntaryExit        `json:"voluntary_exits"`
+	SyncAggregate             *SyncAggregate                `json:"sync_aggregate"`
+	BLSToExecutionChanges     []*SignedBLSToExecutionChange `json:"bls_to_execution_changes"`
+	SignedExecutionPayloadBid *SignedExecutionPayloadBid    `json:"signed_execution_payload_bid"`
+	PayloadAttestations       []*PayloadAttestation         `json:"payload_attestations"`
+}
+
+type BeaconBlockGloas struct {
+	Slot          string                `json:"slot"`
+	ProposerIndex string                `json:"proposer_index"`
+	ParentRoot    string                `json:"parent_root"`
+	StateRoot     string                `json:"state_root"`
+	Body          *BeaconBlockBodyGloas `json:"body"`
+}
+
+type SignedBeaconBlockGloas struct {
+	Message   *BeaconBlockGloas `json:"message"`
+	Signature string            `json:"signature"`
+}
+
+var _ SignedMessageJsoner = &SignedBeaconBlockGloas{}
+
+func (s *SignedBeaconBlockGloas) MessageRawJson() ([]byte, error) {
+	return json.Marshal(s.Message)
+}
+
+func (s *SignedBeaconBlockGloas) SigString() string {
+	return s.Signature
+}

api/server/structs/conversions_block.go

@@ -268,6 +268,8 @@ func SignedBeaconBlockMessageJsoner(block interfaces.ReadOnlySignedBeaconBlock)
 		return SignedBlindedBeaconBlockFuluFromConsensus(pbStruct)
 	case *eth.SignedBeaconBlockFulu:
 		return SignedBeaconBlockFuluFromConsensus(pbStruct)
+	case *eth.SignedBeaconBlockGloas:
+		return SignedBeaconBlockGloasFromConsensus(pbStruct)
 	default:
 		return nil, ErrUnsupportedConversion
 	}
@@ -2885,3 +2887,379 @@ func SignedBeaconBlockFuluFromConsensus(b *eth.SignedBeaconBlockFulu) (*SignedBe
 		Signature: hexutil.Encode(b.Signature),
 	}, nil
 }
+
+// ----------------------------------------------------------------------------
+// Gloas
+// ----------------------------------------------------------------------------
+
+func SignedBeaconBlockGloasFromConsensus(b *eth.SignedBeaconBlockGloas) (*SignedBeaconBlockGloas, error) {
+	block, err := BeaconBlockGloasFromConsensus(b.Block)
+	if err != nil {
+		return nil, err
+	}
+	return &SignedBeaconBlockGloas{
+		Message:   block,
+		Signature: hexutil.Encode(b.Signature),
+	}, nil
+}
+
+func BeaconBlockGloasFromConsensus(b *eth.BeaconBlockGloas) (*BeaconBlockGloas, error) {
+	payloadAttestations := make([]*PayloadAttestation, len(b.Body.PayloadAttestations))
+	for i, pa := range b.Body.PayloadAttestations {
+		payloadAttestations[i] = PayloadAttestationFromConsensus(pa)
+	}
+
+	return &BeaconBlockGloas{
+		Slot:          fmt.Sprintf("%d", b.Slot),
+		ProposerIndex: fmt.Sprintf("%d", b.ProposerIndex),
+		ParentRoot:    hexutil.Encode(b.ParentRoot),
+		StateRoot:     hexutil.Encode(b.StateRoot),
+		Body: &BeaconBlockBodyGloas{
+			RandaoReveal:              hexutil.Encode(b.Body.RandaoReveal),
+			Eth1Data:                  Eth1DataFromConsensus(b.Body.Eth1Data),
+			Graffiti:                  hexutil.Encode(b.Body.Graffiti),
+			ProposerSlashings:         ProposerSlashingsFromConsensus(b.Body.ProposerSlashings),
+			AttesterSlashings:         AttesterSlashingsElectraFromConsensus(b.Body.AttesterSlashings),
+			Attestations:              AttsElectraFromConsensus(b.Body.Attestations),
+			Deposits:                  DepositsFromConsensus(b.Body.Deposits),
+			VoluntaryExits:            SignedExitsFromConsensus(b.Body.VoluntaryExits),
+			SyncAggregate:             SyncAggregateFromConsensus(b.Body.SyncAggregate),
+			BLSToExecutionChanges:     SignedBLSChangesFromConsensus(b.Body.BlsToExecutionChanges),
+			SignedExecutionPayloadBid: SignedExecutionPayloadBidFromConsensus(b.Body.SignedExecutionPayloadBid),
+			PayloadAttestations:       payloadAttestations,
+		},
+	}, nil
+}
+
+func SignedExecutionPayloadBidFromConsensus(b *eth.SignedExecutionPayloadBid) *SignedExecutionPayloadBid {
+	return &SignedExecutionPayloadBid{
+		Message:   ExecutionPayloadBidFromConsensus(b.Message),
+		Signature: hexutil.Encode(b.Signature),
+	}
+}
+
+func ExecutionPayloadBidFromConsensus(b *eth.ExecutionPayloadBid) *ExecutionPayloadBid {
+	return &ExecutionPayloadBid{
+		ParentBlockHash:        hexutil.Encode(b.ParentBlockHash),
+		ParentBlockRoot:        hexutil.Encode(b.ParentBlockRoot),
+		BlockHash:              hexutil.Encode(b.BlockHash),
+		PrevRandao:             hexutil.Encode(b.PrevRandao),
+		FeeRecipient:           hexutil.Encode(b.FeeRecipient),
+		GasLimit:               fmt.Sprintf("%d", b.GasLimit),
+		BuilderIndex:           fmt.Sprintf("%d", b.BuilderIndex),
+		Slot:                   fmt.Sprintf("%d", b.Slot),
+		Value:                  fmt.Sprintf("%d", b.Value),
+		ExecutionPayment:       fmt.Sprintf("%d", b.ExecutionPayment),
+		BlobKzgCommitmentsRoot: hexutil.Encode(b.BlobKzgCommitmentsRoot),
+	}
+}
+
+func PayloadAttestationFromConsensus(pa *eth.PayloadAttestation) *PayloadAttestation {
+	return &PayloadAttestation{
+		AggregationBits: hexutil.Encode(pa.AggregationBits),
+		Data:            PayloadAttestationDataFromConsensus(pa.Data),
+		Signature:       hexutil.Encode(pa.Signature),
+	}
+}
+
+func PayloadAttestationDataFromConsensus(d *eth.PayloadAttestationData) *PayloadAttestationData {
+	return &PayloadAttestationData{
+		BeaconBlockRoot:   hexutil.Encode(d.BeaconBlockRoot),
+		Slot:              fmt.Sprintf("%d", d.Slot),
+		PayloadPresent:    d.PayloadPresent,
+		BlobDataAvailable: d.BlobDataAvailable,
+	}
+}
+
+func (b *SignedBeaconBlockGloas) ToConsensus() (*eth.SignedBeaconBlockGloas, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+
+	sig, err := bytesutil.DecodeHexWithLength(b.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	block, err := b.Message.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Message")
+	}
+	return &eth.SignedBeaconBlockGloas{
+		Block:     block,
+		Signature: sig,
+	}, nil
+}
+
+func (b *BeaconBlockGloas) ToConsensus() (*eth.BeaconBlockGloas, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+	if b.Body == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body")
+	}
+	if b.Body.Eth1Data == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body.Eth1Data")
+	}
+	if b.Body.SyncAggregate == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body.SyncAggregate")
+	}
+	if b.Body.SignedExecutionPayloadBid == nil {
+		return nil, server.NewDecodeError(errNilValue, "Body.SignedExecutionPayloadBid")
+	}
+
+	slot, err := strconv.ParseUint(b.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	proposerIndex, err := strconv.ParseUint(b.ProposerIndex, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ProposerIndex")
+	}
+	parentRoot, err := bytesutil.DecodeHexWithLength(b.ParentRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentRoot")
+	}
+	stateRoot, err := bytesutil.DecodeHexWithLength(b.StateRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "StateRoot")
+	}
+	body, err := b.Body.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Body")
+	}
+	return &eth.BeaconBlockGloas{
+		Slot:          primitives.Slot(slot),
+		ProposerIndex: primitives.ValidatorIndex(proposerIndex),
+		ParentRoot:    parentRoot,
+		StateRoot:     stateRoot,
+		Body:          body,
+	}, nil
+}
+
+func (b *BeaconBlockBodyGloas) ToConsensus() (*eth.BeaconBlockBodyGloas, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+
+	randaoReveal, err := bytesutil.DecodeHexWithLength(b.RandaoReveal, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "RandaoReveal")
+	}
+	depositRoot, err := bytesutil.DecodeHexWithLength(b.Eth1Data.DepositRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Eth1Data.DepositRoot")
+	}
+	depositCount, err := strconv.ParseUint(b.Eth1Data.DepositCount, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Eth1Data.DepositCount")
+	}
+	blockHash, err := bytesutil.DecodeHexWithLength(b.Eth1Data.BlockHash, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Eth1Data.BlockHash")
+	}
+	graffiti, err := bytesutil.DecodeHexWithLength(b.Graffiti, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Graffiti")
+	}
+	proposerSlashings, err := ProposerSlashingsToConsensus(b.ProposerSlashings)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ProposerSlashings")
+	}
+	attesterSlashings, err := AttesterSlashingsElectraToConsensus(b.AttesterSlashings)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "AttesterSlashings")
+	}
+	atts, err := AttsElectraToConsensus(b.Attestations)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Attestations")
+	}
+	deposits, err := DepositsToConsensus(b.Deposits)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Deposits")
+	}
+	exits, err := SignedExitsToConsensus(b.VoluntaryExits)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "VoluntaryExits")
+	}
+	syncCommitteeBits, err := bytesutil.DecodeHexWithLength(b.SyncAggregate.SyncCommitteeBits, fieldparams.SyncAggregateSyncCommitteeBytesLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SyncAggregate.SyncCommitteeBits")
+	}
+	syncCommitteeSig, err := bytesutil.DecodeHexWithLength(b.SyncAggregate.SyncCommitteeSignature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SyncAggregate.SyncCommitteeSignature")
+	}
+	blsChanges, err := SignedBLSChangesToConsensus(b.BLSToExecutionChanges)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BLSToExecutionChanges")
+	}
+	signedBid, err := b.SignedExecutionPayloadBid.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "SignedExecutionPayloadBid")
+	}
+	payloadAttestations, err := PayloadAttestationsToConsensus(b.PayloadAttestations)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "PayloadAttestations")
+	}
+
+	return &eth.BeaconBlockBodyGloas{
+		RandaoReveal: randaoReveal,
+		Eth1Data: &eth.Eth1Data{
+			DepositRoot:  depositRoot,
+			DepositCount: depositCount,
+			BlockHash:    blockHash,
+		},
+		Graffiti:          graffiti,
+		ProposerSlashings: proposerSlashings,
+		AttesterSlashings: attesterSlashings,
+		Attestations:      atts,
+		Deposits:          deposits,
+		VoluntaryExits:    exits,
+		SyncAggregate: &eth.SyncAggregate{
+			SyncCommitteeBits:      syncCommitteeBits,
+			SyncCommitteeSignature: syncCommitteeSig,
+		},
+		BlsToExecutionChanges:     blsChanges,
+		SignedExecutionPayloadBid: signedBid,
+		PayloadAttestations:       payloadAttestations,
+	}, nil
+}
+
+func (b *SignedExecutionPayloadBid) ToConsensus() (*eth.SignedExecutionPayloadBid, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+	sig, err := bytesutil.DecodeHexWithLength(b.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	message, err := b.Message.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Message")
+	}
+	return &eth.SignedExecutionPayloadBid{
+		Message:   message,
+		Signature: sig,
+	}, nil
+}
+
+func (b *ExecutionPayloadBid) ToConsensus() (*eth.ExecutionPayloadBid, error) {
+	if b == nil {
+		return nil, errNilValue
+	}
+	parentBlockHash, err := bytesutil.DecodeHexWithLength(b.ParentBlockHash, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentBlockHash")
+	}
+	parentBlockRoot, err := bytesutil.DecodeHexWithLength(b.ParentBlockRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ParentBlockRoot")
+	}
+	blockHash, err := bytesutil.DecodeHexWithLength(b.BlockHash, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BlockHash")
+	}
+	prevRandao, err := bytesutil.DecodeHexWithLength(b.PrevRandao, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "PrevRandao")
+	}
+	feeRecipient, err := bytesutil.DecodeHexWithLength(b.FeeRecipient, fieldparams.FeeRecipientLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "FeeRecipient")
+	}
+	gasLimit, err := strconv.ParseUint(b.GasLimit, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "GasLimit")
+	}
+	builderIndex, err := strconv.ParseUint(b.BuilderIndex, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BuilderIndex")
+	}
+	slot, err := strconv.ParseUint(b.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	value, err := strconv.ParseUint(b.Value, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Value")
+	}
+	executionPayment, err := strconv.ParseUint(b.ExecutionPayment, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "ExecutionPayment")
+	}
+	blobKzgCommitmentsRoot, err := bytesutil.DecodeHexWithLength(b.BlobKzgCommitmentsRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BlobKzgCommitmentsRoot")
+	}
+	return &eth.ExecutionPayloadBid{
+		ParentBlockHash:        parentBlockHash,
+		ParentBlockRoot:        parentBlockRoot,
+		BlockHash:              blockHash,
+		PrevRandao:             prevRandao,
+		FeeRecipient:           feeRecipient,
+		GasLimit:               gasLimit,
+		BuilderIndex:           primitives.BuilderIndex(builderIndex),
+		Slot:                   primitives.Slot(slot),
+		Value:                  primitives.Gwei(value),
+		ExecutionPayment:       primitives.Gwei(executionPayment),
+		BlobKzgCommitmentsRoot: blobKzgCommitmentsRoot,
+	}, nil
+}
+
+func PayloadAttestationsToConsensus(pa []*PayloadAttestation) ([]*eth.PayloadAttestation, error) {
+	if pa == nil {
+		return nil, errNilValue
+	}
+	result := make([]*eth.PayloadAttestation, len(pa))
+	for i, p := range pa {
+		converted, err := p.ToConsensus()
+		if err != nil {
+			return nil, server.NewDecodeError(err, fmt.Sprintf("[%d]", i))
+		}
+		result[i] = converted
+	}
+	return result, nil
+}
+
+func (p *PayloadAttestation) ToConsensus() (*eth.PayloadAttestation, error) {
+	if p == nil {
+		return nil, errNilValue
+	}
+	aggregationBits, err := hexutil.Decode(p.AggregationBits)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "AggregationBits")
+	}
+	data, err := p.Data.ToConsensus()
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Data")
+	}
+	sig, err := bytesutil.DecodeHexWithLength(p.Signature, fieldparams.BLSSignatureLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Signature")
+	}
+	return &eth.PayloadAttestation{
+		AggregationBits: aggregationBits,
+		Data:            data,
+		Signature:       sig,
+	}, nil
+}
+
+func (d *PayloadAttestationData) ToConsensus() (*eth.PayloadAttestationData, error) {
+	if d == nil {
+		return nil, errNilValue
+	}
+	beaconBlockRoot, err := bytesutil.DecodeHexWithLength(d.BeaconBlockRoot, fieldparams.RootLength)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "BeaconBlockRoot")
+	}
+	slot, err := strconv.ParseUint(d.Slot, 10, 64)
+	if err != nil {
+		return nil, server.NewDecodeError(err, "Slot")
+	}
+	return &eth.PayloadAttestationData{
+		BeaconBlockRoot:   beaconBlockRoot,
+		Slot:              primitives.Slot(slot),
+		PayloadPresent:    d.PayloadPresent,
+		BlobDataAvailable: d.BlobDataAvailable,
+	}, nil
+}

beacon-chain/core/gloas/BUILD.bazel

@@ -4,6 +4,7 @@ go_library(
     name = "go_default_library",
     srcs = [
         "bid.go",
+        "payload_attestation.go",
         "pending_payment.go",
         "proposer_slashing.go",
     ],
@@ -14,12 +15,16 @@ go_library(
         "//beacon-chain/core/signing:go_default_library",
         "//beacon-chain/core/time:go_default_library",
         "//beacon-chain/state:go_default_library",
+        "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",
+        "//consensus-types:go_default_library",
         "//consensus-types/blocks:go_default_library",
         "//consensus-types/interfaces:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//crypto/bls:go_default_library",
         "//crypto/bls/common:go_default_library",
+        "//crypto/hash:go_default_library",
+        "//encoding/bytesutil:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
@@ -30,6 +35,7 @@ go_test(
     name = "go_default_test",
     srcs = [
         "bid_test.go",
+        "payload_attestation_test.go",
         "pending_payment_test.go",
         "proposer_slashing_test.go",
     ],
@@ -40,6 +46,7 @@ go_test(
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",
         "//config/params:go_default_library",
+        "//consensus-types/blocks:go_default_library",
         "//consensus-types/interfaces:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//crypto/bls:go_default_library",
@@ -50,8 +57,10 @@ go_test(
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
         "//runtime/version:go_default_library",
         "//testing/require:go_default_library",
+        "//testing/util:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_prysmaticlabs_fastssz//:go_default_library",
+        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",
     ],
 )

beacon-chain/core/gloas/payload_attestation.go

@@ -0,0 +1,253 @@
+package gloas
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"fmt"
+	"slices"
+
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/signing"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/state"
+	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
+	"github.com/OffchainLabs/prysm/v7/config/params"
+	consensus_types "github.com/OffchainLabs/prysm/v7/consensus-types"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/interfaces"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
+	"github.com/OffchainLabs/prysm/v7/crypto/bls"
+	"github.com/OffchainLabs/prysm/v7/crypto/hash"
+	"github.com/OffchainLabs/prysm/v7/encoding/bytesutil"
+	eth "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
+	"github.com/OffchainLabs/prysm/v7/time/slots"
+	"github.com/pkg/errors"
+)
+
+// ProcessPayloadAttestations validates payload attestations in a block body.
+// Spec v1.7.0-alpha.0 (pseudocode):
+// process_payload_attestation(state: BeaconState, payload_attestation: PayloadAttestation):
+//
+//	data = payload_attestation.data
+//	assert data.beacon_block_root == state.latest_block_header.parent_root
+//	assert data.slot + 1 == state.slot
+//	indexed = get_indexed_payload_attestation(state, data.slot, payload_attestation)
+//	assert is_valid_indexed_payload_attestation(state, indexed)
+func ProcessPayloadAttestations(ctx context.Context, st state.BeaconState, body interfaces.ReadOnlyBeaconBlockBody) error {
+	atts, err := body.PayloadAttestations()
+	if err != nil {
+		return errors.Wrap(err, "failed to get payload attestations from block body")
+	}
+	if len(atts) == 0 {
+		return nil
+	}
+
+	header := st.LatestBlockHeader()
+
+	for i, att := range atts {
+		data := att.Data
+		if !bytes.Equal(data.BeaconBlockRoot, header.ParentRoot) {
+			return fmt.Errorf("payload attestation %d has wrong parent: got %x want %x", i, data.BeaconBlockRoot, header.ParentRoot)
+		}
+
+		dataSlot, err := data.Slot.SafeAdd(1)
+		if err != nil {
+			return errors.Wrapf(err, "payload attestation %d has invalid slot addition", i)
+		}
+		if dataSlot != st.Slot() {
+			return fmt.Errorf("payload attestation %d has wrong slot: got %d want %d", i, data.Slot+1, st.Slot())
+		}
+
+		indexed, err := indexedPayloadAttestation(ctx, st, att)
+		if err != nil {
+			return errors.Wrapf(err, "payload attestation %d failed to convert to indexed form", i)
+		}
+		if err := validIndexedPayloadAttestation(st, indexed); err != nil {
+			return errors.Wrapf(err, "payload attestation %d failed to verify indexed form", i)
+		}
+	}
+	return nil
+}
+
+// indexedPayloadAttestation converts a payload attestation into its indexed form.
+func indexedPayloadAttestation(ctx context.Context, st state.ReadOnlyBeaconState, att *eth.PayloadAttestation) (*consensus_types.IndexedPayloadAttestation, error) {
+	committee, err := payloadCommittee(ctx, st, att.Data.Slot)
+	if err != nil {
+		return nil, err
+	}
+	indices := make([]primitives.ValidatorIndex, 0, len(committee))
+	for i, idx := range committee {
+		if att.AggregationBits.BitAt(uint64(i)) {
+			indices = append(indices, idx)
+		}
+	}
+	slices.Sort(indices)
+
+	return &consensus_types.IndexedPayloadAttestation{
+		AttestingIndices: indices,
+		Data:             att.Data,
+		Signature:        att.Signature,
+	}, nil
+}
+
+// payloadCommittee returns the payload timeliness committee for a given slot for the state.
+// Spec v1.7.0-alpha.0 (pseudocode):
+// get_ptc(state: BeaconState, slot: Slot) -> Vector[ValidatorIndex, PTC_SIZE]:
+//
+//	epoch = compute_epoch_at_slot(slot)
+//	seed = hash(get_seed(state, epoch, DOMAIN_PTC_ATTESTER) + uint_to_bytes(slot))
+//	indices = []
+//	committees_per_slot = get_committee_count_per_slot(state, epoch)
+//	for i in range(committees_per_slot):
+//	  committee = get_beacon_committee(state, slot, CommitteeIndex(i))
+//	  indices.extend(committee)
+//	return compute_balance_weighted_selection(state, indices, seed, size=PTC_SIZE, shuffle_indices=False)
+func payloadCommittee(ctx context.Context, st state.ReadOnlyBeaconState, slot primitives.Slot) ([]primitives.ValidatorIndex, error) {
+	epoch := slots.ToEpoch(slot)
+	seed, err := ptcSeed(st, epoch, slot)
+	if err != nil {
+		return nil, err
+	}
+
+	activeCount, err := helpers.ActiveValidatorCount(ctx, st, epoch)
+	if err != nil {
+		return nil, err
+	}
+
+	committeesPerSlot := helpers.SlotCommitteeCount(activeCount)
+	out := make([]primitives.ValidatorIndex, 0, activeCount/uint64(params.BeaconConfig().SlotsPerEpoch))
+
+	for i := primitives.CommitteeIndex(0); i < primitives.CommitteeIndex(committeesPerSlot); i++ {
+		committee, err := helpers.BeaconCommitteeFromState(ctx, st, slot, i)
+		if err != nil {
+			return nil, errors.Wrapf(err, "failed to get beacon committee %d", i)
+		}
+		out = append(out, committee...)
+	}
+
+	return selectByBalance(ctx, st, out, seed, fieldparams.PTCSize)
+}
+
+// ptcSeed computes the seed for the payload timeliness committee.
+func ptcSeed(st state.ReadOnlyBeaconState, epoch primitives.Epoch, slot primitives.Slot) ([32]byte, error) {
+	seed, err := helpers.Seed(st, epoch, params.BeaconConfig().DomainPTCAttester)
+	if err != nil {
+		return [32]byte{}, err
+	}
+	return hash.Hash(append(seed[:], bytesutil.Bytes8(uint64(slot))...)), nil
+}
+
+// selectByBalance selects a balance-weighted subset of input candidates.
+// Spec v1.7.0-alpha.0 (pseudocode):
+// compute_balance_weighted_selection(state, indices, seed, size, shuffle_indices):
+// Note: shuffle_indices is false for PTC.
+//
+//	total = len(indices); selected = []; i = 0
+//	while len(selected) < size:
+//	  next = i % total
+//	  if shuffle_indices: next = compute_shuffled_index(next, total, seed)
+//	  if compute_balance_weighted_acceptance(state, indices[next], seed, i):
+//	    selected.append(indices[next])
+//	  i += 1
+func selectByBalance(ctx context.Context, st state.ReadOnlyBeaconState, candidates []primitives.ValidatorIndex, seed [32]byte, count uint64) ([]primitives.ValidatorIndex, error) {
+	if len(candidates) == 0 {
+		return nil, errors.New("no candidates for balance weighted selection")
+	}
+
+	hashFunc := hash.CustomSHA256Hasher()
+	// Pre-allocate buffer for hash input: seed (32 bytes) + round counter (8 bytes).
+	var buf [40]byte
+	copy(buf[:], seed[:])
+	maxBalance := params.BeaconConfig().MaxEffectiveBalanceElectra
+
+	selected := make([]primitives.ValidatorIndex, 0, count)
+	total := uint64(len(candidates))
+	for i := uint64(0); uint64(len(selected)) < count; i++ {
+		if ctx.Err() != nil {
+			return nil, ctx.Err()
+		}
+		idx := candidates[i%total]
+		ok, err := acceptByBalance(st, idx, buf[:], hashFunc, maxBalance, i)
+		if err != nil {
+			return nil, err
+		}
+		if ok {
+			selected = append(selected, idx)
+		}
+	}
+	return selected, nil
+}
+
+// acceptByBalance determines if a validator is accepted based on its effective balance.
+// Spec v1.7.0-alpha.0 (pseudocode):
+// compute_balance_weighted_acceptance(state, index, seed, i):
+//
+//	MAX_RANDOM_VALUE = 2**16 - 1
+//	random_bytes = hash(seed + uint_to_bytes(i // 16))
+//	offset = i % 16 * 2
+//	random_value = bytes_to_uint64(random_bytes[offset:offset+2])
+//	effective_balance = state.validators[index].effective_balance
+//	return effective_balance * MAX_RANDOM_VALUE >= MAX_EFFECTIVE_BALANCE_ELECTRA * random_value
+func acceptByBalance(st state.ReadOnlyBeaconState, idx primitives.ValidatorIndex, seedBuf []byte, hashFunc func([]byte) [32]byte, maxBalance uint64, round uint64) (bool, error) {
+	// Reuse the seed buffer by overwriting the last 8 bytes with the round counter.
+	binary.LittleEndian.PutUint64(seedBuf[len(seedBuf)-8:], round/16)
+	random := hashFunc(seedBuf)
+	offset := (round % 16) * 2
+	randomValue := uint64(binary.LittleEndian.Uint16(random[offset : offset+2])) // 16-bit draw per spec
+
+	val, err := st.ValidatorAtIndex(idx)
+	if err != nil {
+		return false, errors.Wrapf(err, "validator %d", idx)
+	}
+
+	return val.EffectiveBalance*fieldparams.MaxRandomValueElectra >= maxBalance*randomValue, nil
+}
+
+// validIndexedPayloadAttestation verifies the signature of an indexed payload attestation.
+// Spec v1.7.0-alpha.0 (pseudocode):
+// is_valid_indexed_payload_attestation(state: BeaconState, indexed_payload_attestation: IndexedPayloadAttestation) -> bool:
+//
+//	indices = indexed_payload_attestation.attesting_indices
+//	return len(indices) > 0 and indices == sorted(indices) and
+//	  bls.FastAggregateVerify(
+//	    [state.validators[i].pubkey for i in indices],
+//	    compute_signing_root(indexed_payload_attestation.data, get_domain(state, DOMAIN_PTC_ATTESTER, compute_epoch_at_slot(attestation.data.slot)),
+//	    indexed_payload_attestation.signature,
+//	  )
+func validIndexedPayloadAttestation(st state.ReadOnlyBeaconState, att *consensus_types.IndexedPayloadAttestation) error {
+	indices := att.AttestingIndices
+	if len(indices) == 0 || !slices.IsSorted(indices) {
+		return errors.New("attesting indices empty or unsorted")
+	}
+
+	pubkeys := make([]bls.PublicKey, len(indices))
+	for i, idx := range indices {
+		val, err := st.ValidatorAtIndexReadOnly(idx)
+		if err != nil {
+			return errors.Wrapf(err, "validator %d", idx)
+		}
+		keyBytes := val.PublicKey()
+		key, err := bls.PublicKeyFromBytes(keyBytes[:])
+		if err != nil {
+			return errors.Wrapf(err, "pubkey %d", idx)
+		}
+		pubkeys[i] = key
+	}
+
+	domain, err := signing.Domain(st.Fork(), slots.ToEpoch(att.Data.Slot), params.BeaconConfig().DomainPTCAttester, st.GenesisValidatorsRoot())
+	if err != nil {
+		return err
+	}
+	root, err := signing.ComputeSigningRoot(att.Data, domain)
+	if err != nil {
+		return err
+	}
+	sig, err := bls.SignatureFromBytes(att.Signature)
+	if err != nil {
+		return err
+	}
+
+	if !sig.FastAggregateVerify(pubkeys, root) {
+		return errors.New("invalid signature")
+	}
+	return nil
+}

beacon-chain/core/gloas/payload_attestation_test.go

@@ -0,0 +1,305 @@
+package gloas_test
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/OffchainLabs/go-bitfield"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/gloas"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/signing"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/state"
+	"github.com/OffchainLabs/prysm/v7/config/params"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/interfaces"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
+	"github.com/OffchainLabs/prysm/v7/crypto/bls"
+	"github.com/OffchainLabs/prysm/v7/crypto/bls/common"
+	eth "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
+	"github.com/OffchainLabs/prysm/v7/testing/require"
+	testutil "github.com/OffchainLabs/prysm/v7/testing/util"
+	"github.com/OffchainLabs/prysm/v7/time/slots"
+)
+
+func TestProcessPayloadAttestations_WrongParent(t *testing.T) {
+	setupTestConfig(t)
+
+	_, pk := newKey(t)
+	st := newTestState(t, []*eth.Validator{activeValidator(pk)}, 1)
+	require.NoError(t, st.SetSlot(2))
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	att := &eth.PayloadAttestation{
+		Data: &eth.PayloadAttestationData{
+			BeaconBlockRoot: bytes.Repeat([]byte{0xbb}, 32),
+			Slot:            1,
+		},
+		AggregationBits: bitfield.NewBitvector512(),
+		Signature:       make([]byte, 96),
+	}
+	body := buildBody(t, att)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.ErrorContains(t, "wrong parent", err)
+}
+
+func TestProcessPayloadAttestations_WrongSlot(t *testing.T) {
+	setupTestConfig(t)
+
+	_, pk := newKey(t)
+	st := newTestState(t, []*eth.Validator{activeValidator(pk)}, 1)
+	require.NoError(t, st.SetSlot(3))
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	att := &eth.PayloadAttestation{
+		Data: &eth.PayloadAttestationData{
+			BeaconBlockRoot: parentRoot,
+			Slot:            1,
+		},
+		AggregationBits: bitfield.NewBitvector512(),
+		Signature:       make([]byte, 96),
+	}
+	body := buildBody(t, att)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.ErrorContains(t, "wrong slot", err)
+}
+
+func TestProcessPayloadAttestations_InvalidSignature(t *testing.T) {
+	setupTestConfig(t)
+
+	_, pk1 := newKey(t)
+	sk2, pk2 := newKey(t)
+	vals := []*eth.Validator{activeValidator(pk1), activeValidator(pk2)}
+	st := newTestState(t, vals, 2)
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	attData := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            1,
+	}
+	att := &eth.PayloadAttestation{
+		Data:            attData,
+		AggregationBits: setBits(bitfield.NewBitvector512(), 0),
+		Signature:       signAttestation(t, st, attData, []common.SecretKey{sk2}),
+	}
+	body := buildBody(t, att)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.ErrorContains(t, "failed to verify indexed form", err)
+	require.ErrorContains(t, "invalid signature", err)
+}
+
+func TestProcessPayloadAttestations_EmptyAggregationBits(t *testing.T) {
+	setupTestConfig(t)
+
+	_, pk := newKey(t)
+	st := newTestState(t, []*eth.Validator{activeValidator(pk)}, 1)
+	require.NoError(t, st.SetSlot(2))
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	attData := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            1,
+	}
+	att := &eth.PayloadAttestation{
+		Data:            attData,
+		AggregationBits: bitfield.NewBitvector512(),
+		Signature:       make([]byte, 96),
+	}
+	body := buildBody(t, att)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.ErrorContains(t, "failed to verify indexed form", err)
+	require.ErrorContains(t, "attesting indices empty or unsorted", err)
+}
+
+func TestProcessPayloadAttestations_HappyPath(t *testing.T) {
+	helpers.ClearCache()
+	setupTestConfig(t)
+
+	sk1, pk1 := newKey(t)
+	sk2, pk2 := newKey(t)
+	vals := []*eth.Validator{activeValidator(pk1), activeValidator(pk2)}
+
+	st := newTestState(t, vals, 2)
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	attData := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            1,
+	}
+	aggBits := bitfield.NewBitvector512()
+	aggBits.SetBitAt(0, true)
+	aggBits.SetBitAt(1, true)
+
+	att := &eth.PayloadAttestation{
+		Data:            attData,
+		AggregationBits: aggBits,
+		Signature:       signAttestation(t, st, attData, []common.SecretKey{sk1, sk2}),
+	}
+	body := buildBody(t, att)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.NoError(t, err)
+}
+
+func TestProcessPayloadAttestations_MultipleAttestations(t *testing.T) {
+	helpers.ClearCache()
+	setupTestConfig(t)
+
+	sk1, pk1 := newKey(t)
+	sk2, pk2 := newKey(t)
+	vals := []*eth.Validator{activeValidator(pk1), activeValidator(pk2)}
+
+	st := newTestState(t, vals, 2)
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	attData1 := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            1,
+	}
+	attData2 := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            1,
+	}
+
+	att1 := &eth.PayloadAttestation{
+		Data:            attData1,
+		AggregationBits: setBits(bitfield.NewBitvector512(), 0),
+		Signature:       signAttestation(t, st, attData1, []common.SecretKey{sk1}),
+	}
+	att2 := &eth.PayloadAttestation{
+		Data:            attData2,
+		AggregationBits: setBits(bitfield.NewBitvector512(), 1),
+		Signature:       signAttestation(t, st, attData2, []common.SecretKey{sk2}),
+	}
+
+	body := buildBody(t, att1, att2)
+
+	err := gloas.ProcessPayloadAttestations(t.Context(), st, body)
+	require.NoError(t, err)
+}
+
+func TestProcessPayloadAttestations_IndexedVerificationError(t *testing.T) {
+	setupTestConfig(t)
+
+	_, pk := newKey(t)
+	st := newTestState(t, []*eth.Validator{activeValidator(pk)}, 1)
+	parentRoot := bytes.Repeat([]byte{0xaa}, 32)
+	require.NoError(t, st.SetLatestBlockHeader(&eth.BeaconBlockHeader{ParentRoot: parentRoot}))
+
+	attData := &eth.PayloadAttestationData{
+		BeaconBlockRoot: parentRoot,
+		Slot:            0,
+	}
+	att := &eth.PayloadAttestation{
+		Data:            attData,
+		AggregationBits: setBits(bitfield.NewBitvector512(), 0),
+		Signature:       make([]byte, 96),
+	}
+	body := buildBody(t, att)
+
+	errState := &validatorLookupErrState{
+		BeaconState: st,
+		errIndex:    0,
+	}
+	err := gloas.ProcessPayloadAttestations(t.Context(), errState, body)
+	require.ErrorContains(t, "failed to verify indexed form", err)
+	require.ErrorContains(t, "validator 0", err)
+}
+
+func newTestState(t *testing.T, vals []*eth.Validator, slot primitives.Slot) state.BeaconState {
+	st, err := testutil.NewBeaconState()
+	require.NoError(t, err)
+	for _, v := range vals {
+		require.NoError(t, st.AppendValidator(v))
+		require.NoError(t, st.AppendBalance(v.EffectiveBalance))
+	}
+	require.NoError(t, st.SetSlot(slot))
+	require.NoError(t, helpers.UpdateCommitteeCache(t.Context(), st, slots.ToEpoch(slot)))
+	return st
+}
+
+func setupTestConfig(t *testing.T) {
+	params.SetupTestConfigCleanup(t)
+	cfg := params.BeaconConfig().Copy()
+	cfg.SlotsPerEpoch = 1
+	cfg.MaxEffectiveBalanceElectra = cfg.MaxEffectiveBalance
+	params.OverrideBeaconConfig(cfg)
+}
+
+func buildBody(t *testing.T, atts ...*eth.PayloadAttestation) interfaces.ReadOnlyBeaconBlockBody {
+	body := &eth.BeaconBlockBodyGloas{
+		PayloadAttestations:   atts,
+		RandaoReveal:          make([]byte, 96),
+		Eth1Data:              &eth.Eth1Data{},
+		Graffiti:              make([]byte, 32),
+		ProposerSlashings:     []*eth.ProposerSlashing{},
+		AttesterSlashings:     []*eth.AttesterSlashingElectra{},
+		Attestations:          []*eth.AttestationElectra{},
+		Deposits:              []*eth.Deposit{},
+		VoluntaryExits:        []*eth.SignedVoluntaryExit{},
+		SyncAggregate:         &eth.SyncAggregate{},
+		BlsToExecutionChanges: []*eth.SignedBLSToExecutionChange{},
+	}
+	wrapped, err := blocks.NewBeaconBlockBody(body)
+	require.NoError(t, err)
+	return wrapped
+}
+
+func setBits(bits bitfield.Bitvector512, idx uint64) bitfield.Bitvector512 {
+	bits.SetBitAt(idx, true)
+	return bits
+}
+
+func activeValidator(pub []byte) *eth.Validator {
+	return &eth.Validator{
+		PublicKey:                  pub,
+		EffectiveBalance:           params.BeaconConfig().MaxEffectiveBalance,
+		WithdrawalCredentials:      make([]byte, 32),
+		ActivationEligibilityEpoch: 0,
+		ActivationEpoch:            0,
+		ExitEpoch:                  params.BeaconConfig().FarFutureEpoch,
+		WithdrawableEpoch:          params.BeaconConfig().FarFutureEpoch,
+	}
+}
+
+func newKey(t *testing.T) (common.SecretKey, []byte) {
+	sk, err := bls.RandKey()
+	require.NoError(t, err)
+	return sk, sk.PublicKey().Marshal()
+}
+
+func signAttestation(t *testing.T, st state.ReadOnlyBeaconState, data *eth.PayloadAttestationData, sks []common.SecretKey) []byte {
+	domain, err := signing.Domain(st.Fork(), slots.ToEpoch(data.Slot), params.BeaconConfig().DomainPTCAttester, st.GenesisValidatorsRoot())
+	require.NoError(t, err)
+	root, err := signing.ComputeSigningRoot(data, domain)
+	require.NoError(t, err)
+
+	sigs := make([]common.Signature, len(sks))
+	for i, sk := range sks {
+		sigs[i] = sk.Sign(root[:])
+	}
+	agg := bls.AggregateSignatures(sigs)
+	return agg.Marshal()
+}
+
+type validatorLookupErrState struct {
+	state.BeaconState
+	errIndex primitives.ValidatorIndex
+}
+
+// ValidatorAtIndexReadOnly is overridden to simulate a missing validator lookup.
+func (s *validatorLookupErrState) ValidatorAtIndexReadOnly(idx primitives.ValidatorIndex) (state.ReadOnlyValidator, error) {
+	if idx == s.errIndex {
+		return nil, state.ErrNilValidatorsInState
+	}
+	return s.BeaconState.ValidatorAtIndexReadOnly(idx)
+}

beacon-chain/light-client/lightclient.go

@@ -413,7 +413,7 @@ func CreateDefaultLightClientUpdate(attestedBlock interfaces.ReadOnlySignedBeaco
 				SyncCommitteeSignature: make([]byte, 96),
 			},
 		}
-	case version.Electra, version.Fulu:
+	case version.Electra, version.Fulu, version.Gloas:
 		m = &pb.LightClientUpdateElectra{
 			AttestedHeader: &pb.LightClientHeaderDeneb{
 				Beacon: &pb.BeaconBlockHeader{
@@ -515,7 +515,7 @@ func ComputeWithdrawalsRoot(payload interfaces.ExecutionData) ([]byte, error) {
 
 func BlockToLightClientHeader(
 	ctx context.Context,
-	attestedBlockVersion int, // this is the version that the light client header should be in, based on the attested block.
+	attestedBlockVersion int,                   // this is the version that the light client header should be in, based on the attested block.
 	block interfaces.ReadOnlySignedBeaconBlock, // this block is either the attested block, or the finalized block. in case of the latter, we might need to upgrade it to the attested block's version.
 ) (interfaces.LightClientHeader, error) {
 	if block.Version() > attestedBlockVersion {
@@ -543,7 +543,7 @@ func BlockToLightClientHeader(
 			Execution:       payloadHeader,
 			ExecutionBranch: payloadProof,
 		}
-	case version.Deneb, version.Electra, version.Fulu:
+	case version.Deneb, version.Electra, version.Fulu, version.Gloas:
 		payloadHeader, payloadProof, err := makeExecutionAndProofDeneb(ctx, block)
 		if err != nil {
 			return nil, errors.Wrap(err, "could not make execution payload header and proof")

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

@@ -50,6 +50,14 @@ import (
 	"go.uber.org/mock/gomock"
 )
 
+// fillGloasBlockTestData populates a Gloas block with non-zero test values for the
+// Gloas-specific fields: SignedExecutionPayloadBid and PayloadAttestations.
+func fillGloasBlockTestData(b *eth.SignedBeaconBlockGloas, numPayloadAttestations int) {
+	slot := b.Block.Slot
+	b.Block.Body.SignedExecutionPayloadBid = util.GenerateTestSignedExecutionPayloadBid(slot)
+	b.Block.Body.PayloadAttestations = util.GenerateTestPayloadAttestations(numPayloadAttestations, slot)
+}
+
 func fillDBTestBlocks(ctx context.Context, t *testing.T, beaconDB db.Database) (*eth.SignedBeaconBlock, []*eth.BeaconBlockContainer) {
 	parentRoot := [32]byte{1, 2, 3}
 	genBlk := util.NewBeaconBlock()
@@ -335,6 +343,50 @@ func TestGetBlockV2(t *testing.T) {
 		require.NoError(t, err)
 		assert.DeepEqual(t, blk, b)
 	})
+	t.Run("gloas", func(t *testing.T) {
+		b := util.NewBeaconBlockGloas()
+		b.Block.Slot = 123
+		fillGloasBlockTestData(b, 2)
+		sb, err := blocks.NewSignedBeaconBlock(b)
+		require.NoError(t, err)
+		mockBlockFetcher := &testutil.MockBlocker{BlockToReturn: sb}
+		mockChainService := &chainMock.ChainService{
+			FinalizedRoots: map[[32]byte]bool{},
+		}
+		s := &Server{
+			OptimisticModeFetcher: mockChainService,
+			FinalizationFetcher:   mockChainService,
+			Blocker:               mockBlockFetcher,
+		}
+
+		request := httptest.NewRequest(http.MethodGet, "http://foo.example/eth/v2/beacon/blocks/{block_id}", nil)
+		request.SetPathValue("block_id", "head")
+		writer := httptest.NewRecorder()
+		writer.Body = &bytes.Buffer{}
+
+		s.GetBlockV2(writer, request)
+		require.Equal(t, http.StatusOK, writer.Code)
+		resp := &structs.GetBlockV2Response{}
+		require.NoError(t, json.Unmarshal(writer.Body.Bytes(), resp))
+		assert.Equal(t, version.String(version.Gloas), resp.Version)
+		sbb := &structs.SignedBeaconBlockGloas{Message: &structs.BeaconBlockGloas{}}
+		require.NoError(t, json.Unmarshal(resp.Data.Message, sbb.Message))
+		sbb.Signature = resp.Data.Signature
+		blk, err := sbb.ToConsensus()
+		require.NoError(t, err)
+		assert.DeepEqual(t, blk, b)
+
+		// Verify Gloas-specific fields are correctly serialized/deserialized
+		require.NotNil(t, blk.Block.Body.SignedExecutionPayloadBid)
+		assert.Equal(t, primitives.Slot(123), blk.Block.Body.SignedExecutionPayloadBid.Message.Slot)
+		assert.Equal(t, primitives.BuilderIndex(1), blk.Block.Body.SignedExecutionPayloadBid.Message.BuilderIndex)
+		require.Equal(t, 2, len(blk.Block.Body.PayloadAttestations))
+		for _, att := range blk.Block.Body.PayloadAttestations {
+			assert.Equal(t, primitives.Slot(123), att.Data.Slot)
+			assert.Equal(t, true, att.Data.PayloadPresent)
+			assert.Equal(t, true, att.Data.BlobDataAvailable)
+		}
+	})
 	t.Run("execution optimistic", func(t *testing.T) {
 		b := util.NewBeaconBlockBellatrix()
 		sb, err := blocks.NewSignedBeaconBlock(b)
@@ -574,6 +626,37 @@ func TestGetBlockSSZV2(t *testing.T) {
 		require.NoError(t, err)
 		assert.DeepEqual(t, sszExpected, writer.Body.Bytes())
 	})
+	t.Run("gloas", func(t *testing.T) {
+		b := util.NewBeaconBlockGloas()
+		b.Block.Slot = 123
+		fillGloasBlockTestData(b, 2)
+		sb, err := blocks.NewSignedBeaconBlock(b)
+		require.NoError(t, err)
+
+		s := &Server{
+			Blocker: &testutil.MockBlocker{BlockToReturn: sb},
+		}
+
+		request := httptest.NewRequest(http.MethodGet, "http://foo.example/eth/v2/beacon/blocks/{block_id}", nil)
+		request.SetPathValue("block_id", "head")
+		request.Header.Set("Accept", api.OctetStreamMediaType)
+		writer := httptest.NewRecorder()
+		writer.Body = &bytes.Buffer{}
+
+		s.GetBlockV2(writer, request)
+		require.Equal(t, http.StatusOK, writer.Code)
+		assert.Equal(t, version.String(version.Gloas), writer.Header().Get(api.VersionHeader))
+		sszExpected, err := b.MarshalSSZ()
+		require.NoError(t, err)
+		assert.DeepEqual(t, sszExpected, writer.Body.Bytes())
+
+		// Verify SSZ round-trip preserves Gloas-specific fields
+		decoded := &eth.SignedBeaconBlockGloas{}
+		require.NoError(t, decoded.UnmarshalSSZ(writer.Body.Bytes()))
+		require.NotNil(t, decoded.Block.Body.SignedExecutionPayloadBid)
+		assert.Equal(t, primitives.Slot(123), decoded.Block.Body.SignedExecutionPayloadBid.Message.Slot)
+		require.Equal(t, 2, len(decoded.Block.Body.PayloadAttestations))
+	})
 }
 
 func TestGetBlockAttestationsV2(t *testing.T) {

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

@@ -197,6 +197,9 @@ func TestGetSpec(t *testing.T) {
 	var dbb [4]byte
 	copy(dbb[:], []byte{'0', '0', '0', '8'})
 	config.DomainBeaconBuilder = dbb
+	var dptc [4]byte
+	copy(dptc[:], []byte{'0', '0', '0', '8'})
+	config.DomainPTCAttester = dptc
 	var dam [4]byte
 	copy(dam[:], []byte{'1', '0', '0', '0'})
 	config.DomainApplicationMask = dam
@@ -212,7 +215,7 @@ func TestGetSpec(t *testing.T) {
 	require.NoError(t, json.Unmarshal(writer.Body.Bytes(), &resp))
 	data, ok := resp.Data.(map[string]any)
 	require.Equal(t, true, ok)
-	assert.Equal(t, 186, len(data))
+	assert.Equal(t, 187, len(data))
 	for k, v := range data {
 		t.Run(k, func(t *testing.T) {
 			switch k {
@@ -414,6 +417,8 @@ func TestGetSpec(t *testing.T) {
 				assert.Equal(t, "0x30303036", v)
 			case "DOMAIN_AGGREGATE_AND_PROOF":
 				assert.Equal(t, "0x30303037", v)
+			case "DOMAIN_PTC_ATTESTER":
+				assert.Equal(t, "0x30303038", v)
 			case "DOMAIN_APPLICATION_MASK":
 				assert.Equal(t, "0x31303030", v)
 			case "DOMAIN_SYNC_COMMITTEE":

changelog/bastin_add-cmd-to-gen-log.md

@@ -0,0 +1,3 @@
+### Ignored
+
+- add `cmd` and all it's subcategories to the log.go generation process.

changelog/james-prysm_gloas-getblockv2-rest.md

@@ -0,0 +1,3 @@
+### Added
+
+- gloas block return support for /eth/v2/beacon/blocks/{block_id} and /eth/v1/beacon/blocks/{block_id}/root endpoints.

changelog/potuz_hashtree_builds.md

@@ -0,0 +1,2 @@
+### Fixed
+- Fix hashtree release builds.

changelog/ttsao_add-gloas-process-payload-att.md

@@ -0,0 +1,3 @@
+### Added
+
+- Add Gloas process payload attestation

cmd/BUILD.bazel

@@ -9,6 +9,7 @@ go_library(
         "defaults.go",
         "flags.go",
         "helpers.go",
+        "log.go",
         "password_reader.go",
         "wrap_flags.go",
     ],

cmd/beacon-chain/db/BUILD.bazel

@@ -2,7 +2,10 @@ load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
-    srcs = ["db.go"],
+    srcs = [
+        "db.go",
+        "log.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/beacon-chain/db",
     visibility = ["//visibility:public"],
     deps = [

cmd/beacon-chain/db/db.go

@@ -4,12 +4,9 @@ import (
 	beacondb "github.com/OffchainLabs/prysm/v7/beacon-chain/db"
 	"github.com/OffchainLabs/prysm/v7/cmd"
 	"github.com/OffchainLabs/prysm/v7/runtime/tos"
-	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "db")
-
 // Commands for interacting with a beacon chain database.
 var Commands = &cli.Command{
 	Name:     "db",

cmd/beacon-chain/db/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package db
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain/db")

cmd/beacon-chain/flags/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package flags
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "flags")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain/flags")

cmd/beacon-chain/genesis/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package genesis
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "genesis")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain/genesis")

cmd/beacon-chain/jwt/BUILD.bazel

@@ -2,7 +2,10 @@ load("@prysm//tools/go:def.bzl", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
-    srcs = ["jwt.go"],
+    srcs = [
+        "jwt.go",
+        "log.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/beacon-chain/jwt",
     visibility = ["//visibility:public"],
     deps = [

cmd/beacon-chain/jwt/jwt.go

@@ -6,7 +6,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/api"
 	"github.com/OffchainLabs/prysm/v7/cmd"
 	"github.com/OffchainLabs/prysm/v7/io/file"
-	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
@@ -23,7 +22,7 @@ var Commands = &cli.Command{
 	}),
 	Action: func(cliCtx *cli.Context) error {
 		if err := generateAuthSecretInFile(cliCtx); err != nil {
-			logrus.WithError(err).Fatal("Could not generate jwt")
+			log.WithError(err).Fatal("Could not generate jwt")
 		}
 		return nil
 	},
@@ -57,6 +56,6 @@ func generateAuthSecretInFile(c *cli.Context) error {
 	if err := file.WriteFile(fileName, []byte(secret)); err != nil {
 		return err
 	}
-	logrus.Infof("Successfully wrote JSON-RPC authentication secret to file %s", fileName)
+	log.Infof("Successfully wrote JSON-RPC authentication secret to file %s", fileName)
 	return nil
 }

cmd/beacon-chain/jwt/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package jwt
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain/jwt")

cmd/beacon-chain/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package main
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "main")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain")

cmd/beacon-chain/storage/BUILD.bazel

@@ -2,7 +2,10 @@ load("@prysm//tools/go:def.bzl", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
-    srcs = ["options.go"],
+    srcs = [
+        "log.go",
+        "options.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/beacon-chain/storage",
     visibility = ["//visibility:public"],
     deps = [

cmd/beacon-chain/storage/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package storage
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/beacon-chain/storage")

cmd/beacon-chain/storage/options.go

@@ -15,7 +15,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/config/params"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
 	"github.com/pkg/errors"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/client-stats/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package main
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "main")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/client-stats")

cmd/helpers.go

@@ -14,8 +14,6 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "node")
-
 // ConfirmAction uses the passed in actionText as the confirmation text displayed in the terminal.
 // The user must enter Y or N to indicate whether they confirm the action detailed in the warning text.
 // Returns a boolean representing the user's answer.

cmd/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package cmd
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd")

cmd/prysmctl/BUILD.bazel

@@ -4,7 +4,10 @@ load("//tools:prysm_image.bzl", "prysm_image_upload")
 
 go_library(
     name = "go_default_library",
-    srcs = ["main.go"],
+    srcs = [
+        "log.go",
+        "main.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/prysmctl",
     visibility = ["//visibility:private"],
     deps = [

cmd/prysmctl/checkpointsync/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "cmd.go",
         "download.go",
+        "log.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/prysmctl/checkpointsync",
     visibility = ["//visibility:public"],

cmd/prysmctl/checkpointsync/download.go

@@ -8,7 +8,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/api/client"
 	"github.com/OffchainLabs/prysm/v7/api/client/beacon"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/sync/checkpoint"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/prysmctl/checkpointsync/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package checkpointsync
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/checkpointsync")

cmd/prysmctl/db/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "buckets.go",
         "cmd.go",
+        "log.go",
         "query.go",
         "span.go",
     ],

cmd/prysmctl/db/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package db
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/db")

cmd/prysmctl/db/query.go

@@ -8,7 +8,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/config/params"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/pkg/errors"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 	bolt "go.etcd.io/bbolt"
 )

cmd/prysmctl/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package main
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl")

cmd/prysmctl/main.go

@@ -9,7 +9,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/cmd/prysmctl/testnet"
 	"github.com/OffchainLabs/prysm/v7/cmd/prysmctl/validator"
 	"github.com/OffchainLabs/prysm/v7/cmd/prysmctl/weaksubjectivity"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/prysmctl/p2p/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package p2p
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "prysmctl-p2p")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/p2p")

cmd/prysmctl/testnet/BUILD.bazel

@@ -4,6 +4,7 @@ go_library(
     name = "go_default_library",
     srcs = [
         "generate_genesis.go",
+        "log.go",
         "testnet.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/prysmctl/testnet",

cmd/prysmctl/testnet/generate_genesis.go

@@ -43,7 +43,6 @@ var (
 		GethGenesisJsonIn  string
 		GethGenesisJsonOut string
 	}{}
-	log           = logrus.WithField("prefix", "genesis")
 	outputSSZFlag = &cli.StringFlag{
 		Name:        "output-ssz",
 		Destination: &generateGenesisStateFlags.OutputSSZ,

cmd/prysmctl/testnet/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package testnet
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/testnet")

cmd/prysmctl/validator/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "cmd.go",
         "error.go",
+        "log.go",
         "proposer_settings.go",
         "withdraw.go",
     ],

cmd/prysmctl/validator/cmd.go

@@ -10,7 +10,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/config/features"
 	"github.com/OffchainLabs/prysm/v7/runtime/tos"
 	"github.com/logrusorgru/aurora"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/prysmctl/validator/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package validator
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/validator")

cmd/prysmctl/validator/proposer_settings.go

@@ -16,7 +16,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing/trace"
 	validatorpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1/validator-client"
 	"github.com/ethereum/go-ethereum/common"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/prysmctl/validator/withdraw.go

@@ -18,7 +18,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/logrusorgru/aurora"
 	"github.com/pkg/errors"
-	log "github.com/sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
@@ -143,7 +143,7 @@ func checkIfWithdrawsAreInPool(ctx context.Context, client *beacon.Client, reque
 	}
 	if len(requestMap) != 0 {
 		for key, address := range requestMap {
-			log.WithFields(log.Fields{
+			log.WithFields(logrus.Fields{
 				"validatorIndex":    key,
 				"executionAddress:": address,
 			}).Warn("Set withdrawal address message not found in the node's operations pool.")

cmd/prysmctl/weaksubjectivity/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "checkpoint.go",
         "cmd.go",
+        "log.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/prysmctl/weaksubjectivity",
     visibility = ["//visibility:public"],

cmd/prysmctl/weaksubjectivity/checkpoint.go

@@ -8,7 +8,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/api/client"
 	"github.com/OffchainLabs/prysm/v7/api/client/beacon"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/sync/checkpoint"
-	log "github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 

cmd/prysmctl/weaksubjectivity/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package weaksubjectivity
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/prysmctl/weaksubjectivity")

cmd/validator/BUILD.bazel

@@ -5,6 +5,7 @@ load("//tools:prysm_image.bzl", "prysm_image_upload")
 go_library(
     name = "go_default_library",
     srcs = [
+        "log.go",
         "main.go",
         "usage.go",
     ],

cmd/validator/accounts/BUILD.bazel

@@ -9,6 +9,7 @@ go_library(
         "exit.go",
         "import.go",
         "list.go",
+        "log.go",
         "wallet_utils.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/validator/accounts",

cmd/validator/accounts/accounts.go

@@ -7,12 +7,9 @@ import (
 	"github.com/OffchainLabs/prysm/v7/cmd/validator/flags"
 	"github.com/OffchainLabs/prysm/v7/config/features"
 	"github.com/OffchainLabs/prysm/v7/runtime/tos"
-	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "accounts")
-
 // Commands for managing Prysm validator accounts.
 var Commands = &cli.Command{
 	Name:     "accounts",

cmd/validator/accounts/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package accounts
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator/accounts")

cmd/validator/db/BUILD.bazel

@@ -2,7 +2,10 @@ load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
-    srcs = ["db.go"],
+    srcs = [
+        "db.go",
+        "log.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/cmd/validator/db",
     visibility = ["//visibility:public"],
     deps = [

cmd/validator/db/db.go

@@ -4,12 +4,9 @@ import (
 	"github.com/OffchainLabs/prysm/v7/cmd"
 	"github.com/OffchainLabs/prysm/v7/runtime/tos"
 	validatordb "github.com/OffchainLabs/prysm/v7/validator/db"
-	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "db")
-
 var (
 	// SourceDataDirFlag defines a path on disk where source Prysm databases are stored. Used for conversion.
 	SourceDataDirFlag = &cli.StringFlag{

cmd/validator/db/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package db
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator/db")

cmd/validator/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package main
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator")

cmd/validator/main.go

@@ -34,8 +34,6 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "main")
-
 func startNode(ctx *cli.Context) error {
 	// Verify if ToS is accepted.
 	if err := tos.VerifyTosAcceptedOrPrompt(ctx); err != nil {

cmd/validator/slashing-protection/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package historycmd
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "historycmd")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator/slashing-protection")

cmd/validator/wallet/BUILD.bazel

@@ -4,6 +4,7 @@ go_library(
     name = "go_default_library",
     srcs = [
         "create.go",
+        "log.go",
         "recover.go",
         "wallet.go",
     ],

cmd/validator/wallet/log.go

@@ -0,0 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
+package wallet
+
+import "github.com/sirupsen/logrus"
+
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator/wallet")

cmd/validator/wallet/wallet.go

@@ -5,12 +5,9 @@ import (
 	"github.com/OffchainLabs/prysm/v7/cmd/validator/flags"
 	"github.com/OffchainLabs/prysm/v7/config/features"
 	"github.com/OffchainLabs/prysm/v7/runtime/tos"
-	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
 
-var log = logrus.WithField("prefix", "wallet")
-
 // Commands for wallets for Prysm validators.
 var Commands = &cli.Command{
 	Name:     "wallet",

cmd/validator/web/log.go

@@ -1,5 +1,9 @@
+// Code generated by hack/gen-logs.sh; DO NOT EDIT.
+// This file is created and regenerated automatically. Anything added here might get removed.
 package web
 
 import "github.com/sirupsen/logrus"
 
-var log = logrus.WithField("prefix", "web")
+// The prefix for logs from this package will be the text after the last slash in the package path.
+// If you wish to change this, you should add your desired name in the runtime/logging/logrus-prefixed-formatter/prefix-replacement.go file.
+var log = logrus.WithField("package", "cmd/validator/web")

config/fieldparams/mainnet.go

@@ -50,4 +50,7 @@ const (
 	// Introduced in Fulu network upgrade.
 	NumberOfColumns = 128 // NumberOfColumns refers to the specified number of data columns that can exist in a network.
 	CellsPerBlob    = 64  // CellsPerBlob refers to the number of cells in a (non-extended) blob.
+
+	// Introduced in Gloas network upgrade.
+	PTCSize = 512 // PTCSize is the size of the payload timeliness committee.
 )

config/fieldparams/minimal.go

@@ -50,4 +50,7 @@ const (
 	// Introduced in Fulu network upgrade.
 	NumberOfColumns = 128 // NumberOfColumns refers to the specified number of data columns that can exist in a network.
 	CellsPerBlob    = 64  // CellsPerBlob refers to the number of cells in a (non-extended) blob.
+
+	// Introduced in Gloas network upgrade.
+	PTCSize = 2 // PTCSize is the size of the payload timeliness committee.
 )

config/params/config.go

@@ -142,6 +142,7 @@ type BeaconChainConfig struct {
 	DomainApplicationBuilder          [4]byte `yaml:"DOMAIN_APPLICATION_BUILDER" spec:"true"`            // DomainApplicationBuilder defines the BLS signature domain for application builder.
 	DomainBLSToExecutionChange        [4]byte `yaml:"DOMAIN_BLS_TO_EXECUTION_CHANGE" spec:"true"`        // DomainBLSToExecutionChange defines the BLS signature domain to change withdrawal addresses to ETH1 prefix
 	DomainBeaconBuilder               [4]byte `yaml:"DOMAIN_BEACON_BUILDER" spec:"true"`                 // DomainBeaconBuilder defines the BLS signature domain for beacon block builder.
+	DomainPTCAttester                 [4]byte `yaml:"DOMAIN_PTC_ATTESTER" spec:"true"`                   // DomainPTCAttester defines the BLS signature domain for payload transaction committee attester.
 
 	// Prysm constants.
 	GenesisValidatorsRoot          [32]byte        // GenesisValidatorsRoot is the root hash of the genesis validators.

config/params/mainnet_config.go

@@ -185,6 +185,7 @@ var mainnetBeaconConfig = &BeaconChainConfig{
 	DomainApplicationBuilder:          bytesutil.Uint32ToBytes4(0x00000001),
 	DomainBLSToExecutionChange:        bytesutil.Uint32ToBytes4(0x0A000000),
 	DomainBeaconBuilder:               bytesutil.Uint32ToBytes4(0x0B000000),
+	DomainPTCAttester:                 bytesutil.Uint32ToBytes4(0x0C000000),
 
 	// Prysm constants.
 	GenesisValidatorsRoot:          [32]byte{75, 54, 61, 185, 78, 40, 97, 32, 215, 110, 185, 5, 52, 15, 221, 78, 84, 191, 233, 240, 107, 243, 63, 246, 207, 90, 210, 127, 81, 27, 254, 149},

consensus-types/BUILD.bazel

@@ -2,10 +2,15 @@ load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
-    srcs = ["types.go"],
+    srcs = [
+        "indexed_payload_attestation.go",
+        "types.go",
+    ],
     importpath = "github.com/OffchainLabs/prysm/v7/consensus-types",
     visibility = ["//visibility:public"],
     deps = [
+        "//consensus-types/primitives:go_default_library",
+        "//proto/prysm/v1alpha1:go_default_library",
         "//runtime/version:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
     ],

consensus-types/indexed_payload_attestation.go

@@ -0,0 +1,36 @@
+package consensus_types
+
+import (
+	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
+	eth "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
+)
+
+type IndexedPayloadAttestation struct {
+	AttestingIndices []primitives.ValidatorIndex
+	Data             *eth.PayloadAttestationData
+	Signature        []byte
+}
+
+// GetAttestingIndices returns the attesting indices or nil when the receiver is nil.
+func (x *IndexedPayloadAttestation) GetAttestingIndices() []primitives.ValidatorIndex {
+	if x == nil {
+		return nil
+	}
+	return x.AttestingIndices
+}
+
+// GetData returns the attestation data or nil when the receiver is nil.
+func (x *IndexedPayloadAttestation) GetData() *eth.PayloadAttestationData {
+	if x == nil {
+		return nil
+	}
+	return x.Data
+}
+
+// GetSignature returns the signature bytes or nil when the receiver is nil.
+func (x *IndexedPayloadAttestation) GetSignature() []byte {
+	if x == nil {
+		return nil
+	}
+	return x.Signature
+}

hack/gen-logs.sh

@@ -14,7 +14,6 @@ EXCLUDED_PATH_PREFIXES=(
   "runtime"
   "monitoring"
   "io"
-  "cmd"
   ".well-known"
   "changelog"
   "hack"

runtime/logging/logrus-prefixed-formatter/prefix-replacements.go

@@ -1,6 +1,13 @@
 package prefixed
 
 var prefixReplacements = map[string]string{
+	"cmd/beacon-chain":                                "main",
+	"cmd/client-stats":                                "main",
+	"cmd/prysmctl/p2p":                                "prysmctl-p2p",
+	"cmd/prysmctl/testnet":                            "genesis",
+	"cmd/validator/slashing-protection":               "historycmd",
+	"cmd/validator":                                   "main",
+	"cmd":                                             "node",
 	"beacon-chain/cache/depositsnapshot":              "cache",
 	"beacon-chain/core/transition":                    "state",
 	"beacon-chain/db/kv":                              "db",

testing/spectest/mainnet/BUILD.bazel

@@ -202,6 +202,7 @@ go_test(
         "fulu__ssz_static__ssz_static_test.go",
         "gloas__epoch_processing__process_builder_pending_payments_test.go",
         "gloas__operations__execution_payload_header_test.go",
+        "gloas__operations__payload_attestation_test.go",
         "gloas__operations__proposer_slashing_test.go",
         "gloas__sanity__slots_test.go",
         "gloas__ssz_static__ssz_static_test.go",

testing/spectest/mainnet/gloas__operations__payload_attestation_test.go

@@ -0,0 +1,11 @@
+package mainnet
+
+import (
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v7/testing/spectest/shared/gloas/operations"
+)
+
+func TestMainnet_Gloas_Operations_PayloadAttestation(t *testing.T) {
+	operations.RunPayloadAttestationTest(t, "mainnet")
+}

testing/spectest/minimal/BUILD.bazel

@@ -208,6 +208,7 @@ go_test(
         "fulu__ssz_static__ssz_static_test.go",
         "gloas__epoch_processing__process_builder_pending_payments_test.go",
         "gloas__operations__execution_payload_bid_test.go",
+        "gloas__operations__payload_attestation_test.go",
         "gloas__operations__proposer_slashing_test.go",
         "gloas__sanity__slots_test.go",
         "gloas__ssz_static__ssz_static_test.go",

testing/spectest/minimal/gloas__operations__payload_attestation_test.go

@@ -0,0 +1,11 @@
+package minimal
+
+import (
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v7/testing/spectest/shared/gloas/operations"
+)
+
+func TestMinimal_Gloas_Operations_PayloadAttestation(t *testing.T) {
+	operations.RunPayloadAttestationTest(t, "minimal")
+}

testing/spectest/shared/common/operations/BUILD.bazel

@@ -13,6 +13,7 @@ go_library(
         "deposit_request.go",
         "execution_payload.go",
         "execution_payload_bid.go",
+        "payload_attestation.go",
         "proposer_slashing.go",
         "slashing.go",
         "sync_aggregate.go",

testing/spectest/shared/common/operations/payload_attestation.go

@@ -0,0 +1,122 @@
+package operations
+
+import (
+	"context"
+	"path"
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/gloas"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
+	"github.com/OffchainLabs/prysm/v7/beacon-chain/state"
+	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
+	eth "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
+	"github.com/OffchainLabs/prysm/v7/testing/require"
+	"github.com/OffchainLabs/prysm/v7/testing/spectest/utils"
+	"github.com/OffchainLabs/prysm/v7/testing/util"
+	"github.com/golang/snappy"
+)
+
+type PayloadAttestationOperation func(ctx context.Context, s state.BeaconState, att *eth.PayloadAttestation) (state.BeaconState, error)
+
+func RunPayloadAttestationTest(t *testing.T, config string, fork string, sszToState SSZToState) {
+	runPayloadAttestationTest(t, config, fork, "payload_attestation", sszToState, func(ctx context.Context, s state.BeaconState, att *eth.PayloadAttestation) (state.BeaconState, error) {
+		// Create a mock block body with the payload attestation
+		body, err := createMockBlockBodyWithPayloadAttestation(att)
+		if err != nil {
+			return s, err
+		}
+		// Wrap the protobuf body in the interface
+		wrappedBody, err := blocks.NewBeaconBlockBody(body)
+		if err != nil {
+			return s, err
+		}
+		err = gloas.ProcessPayloadAttestations(ctx, s, wrappedBody)
+		return s, err
+	})
+}
+
+func runPayloadAttestationTest(t *testing.T, config string, fork string, objName string, sszToState SSZToState, operationFn PayloadAttestationOperation) {
+	require.NoError(t, utils.SetConfig(t, config))
+	testFolders, testsFolderPath := utils.TestFolders(t, config, fork, "operations/"+objName+"/pyspec_tests")
+	if len(testFolders) == 0 {
+		t.Fatalf("No test folders found for %s/%s/%s", config, fork, "operations/"+objName+"/pyspec_tests")
+	}
+	for _, folder := range testFolders {
+		t.Run(folder.Name(), func(t *testing.T) {
+			helpers.ClearCache()
+			folderPath := path.Join(testsFolderPath, folder.Name())
+
+			// Load payload attestation from payload_attestation.ssz_snappy
+			attestationFile, err := util.BazelFileBytes(folderPath, "payload_attestation.ssz_snappy")
+			require.NoError(t, err)
+			attestationSSZ, err := snappy.Decode(nil /* dst */, attestationFile)
+			require.NoError(t, err, "Failed to decompress payload attestation")
+
+			// Unmarshal payload attestation
+			att := &eth.PayloadAttestation{}
+			err = att.UnmarshalSSZ(attestationSSZ)
+			require.NoError(t, err, "Failed to unmarshal payload attestation")
+
+			runPayloadAttestationOperationTest(t, folderPath, att, sszToState, operationFn)
+		})
+	}
+}
+
+// runPayloadAttestationOperationTest runs a single payload attestation operation test
+func runPayloadAttestationOperationTest(t *testing.T, folderPath string, att *eth.PayloadAttestation, sszToState SSZToState, operationFn PayloadAttestationOperation) {
+	preBeaconStateFile, err := util.BazelFileBytes(folderPath, "pre.ssz_snappy")
+	require.NoError(t, err)
+	preBeaconStateSSZ, err := snappy.Decode(nil /* dst */, preBeaconStateFile)
+	require.NoError(t, err, "Failed to decompress")
+	beaconState, err := sszToState(preBeaconStateSSZ)
+	require.NoError(t, err)
+
+	// Check if post state exists
+	postStateExists := true
+	postBeaconStateFile, err := util.BazelFileBytes(folderPath, "post.ssz_snappy")
+	if err != nil {
+		postStateExists = false
+	}
+
+	ctx := t.Context()
+	resultState, err := operationFn(ctx, beaconState, att)
+
+	if postStateExists {
+		// Test should succeed
+		require.NoError(t, err, "Operation should succeed")
+
+		// Compare with expected post state
+		postBeaconStateSSZ, err := snappy.Decode(nil /* dst */, postBeaconStateFile)
+		require.NoError(t, err, "Failed to decompress post state")
+		expectedState, err := sszToState(postBeaconStateSSZ)
+		require.NoError(t, err)
+
+		expectedRoot, err := expectedState.HashTreeRoot(ctx)
+		require.NoError(t, err)
+		resultRoot, err := resultState.HashTreeRoot(ctx)
+		require.NoError(t, err)
+		require.DeepEqual(t, expectedRoot, resultRoot, "Post state does not match expected")
+	} else {
+		// Test should fail (no post.ssz_snappy means the operation should error)
+		require.NotNil(t, err, "Operation should fail but succeeded")
+	}
+}
+
+// createMockBlockBodyWithPayloadAttestation creates a mock block body containing the payload attestation
+func createMockBlockBodyWithPayloadAttestation(att *eth.PayloadAttestation) (*eth.BeaconBlockBodyGloas, error) {
+	body := &eth.BeaconBlockBodyGloas{
+		PayloadAttestations: []*eth.PayloadAttestation{att},
+		// Default values
+		RandaoReveal:          make([]byte, 96),
+		Eth1Data:              &eth.Eth1Data{},
+		Graffiti:              make([]byte, 32),
+		ProposerSlashings:     []*eth.ProposerSlashing{},
+		AttesterSlashings:     []*eth.AttesterSlashingElectra{},
+		Attestations:          []*eth.AttestationElectra{},
+		Deposits:              []*eth.Deposit{},
+		VoluntaryExits:        []*eth.SignedVoluntaryExit{},
+		SyncAggregate:         &eth.SyncAggregate{},
+		BlsToExecutionChanges: []*eth.SignedBLSToExecutionChange{},
+	}
+	return body, nil
+}

testing/spectest/shared/gloas/operations/BUILD.bazel

@@ -6,6 +6,7 @@ go_library(
     srcs = [
         "execution_payload_bid.go",
         "helpers.go",
+        "payload_attestation.go",
         "proposer_slashing.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/testing/spectest/shared/gloas/operations",

testing/spectest/shared/gloas/operations/helpers.go

@@ -15,7 +15,6 @@ func sszToState(b []byte) (state.BeaconState, error) {
 	}
 	return state_native.InitializeFromProtoGloas(base)
 }
-
 func sszToBlock(b []byte) (interfaces.SignedBeaconBlock, error) {
 	base := &ethpb.BeaconBlockGloas{}
 	if err := base.UnmarshalSSZ(b); err != nil {

testing/spectest/shared/gloas/operations/payload_attestation.go

@@ -0,0 +1,12 @@
+package operations
+
+import (
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v7/runtime/version"
+	common "github.com/OffchainLabs/prysm/v7/testing/spectest/shared/common/operations"
+)
+
+func RunPayloadAttestationTest(t *testing.T, config string) {
+	common.RunPayloadAttestationTest(t, config, version.String(version.Gloas), sszToState)
+}

testing/util/block.go

@@ -1473,3 +1473,185 @@ func HydrateBlindedBeaconBlockBodyFulu(b *ethpb.BlindedBeaconBlockBodyElectra) *
 	b.ExecutionRequests = HydrateExecutionRequests(b.ExecutionRequests)
 	return b
 }
+
+// HydrateSignedBeaconBlockGloas hydrates a signed beacon block with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydrateSignedBeaconBlockGloas(b *ethpb.SignedBeaconBlockGloas) *ethpb.SignedBeaconBlockGloas {
+	if b == nil {
+		b = &ethpb.SignedBeaconBlockGloas{}
+	}
+	if b.Signature == nil {
+		b.Signature = make([]byte, fieldparams.BLSSignatureLength)
+	}
+	b.Block = HydrateBeaconBlockGloas(b.Block)
+	return b
+}
+
+// HydrateBeaconBlockGloas hydrates a beacon block with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydrateBeaconBlockGloas(b *ethpb.BeaconBlockGloas) *ethpb.BeaconBlockGloas {
+	if b == nil {
+		b = &ethpb.BeaconBlockGloas{}
+	}
+	if b.ParentRoot == nil {
+		b.ParentRoot = make([]byte, fieldparams.RootLength)
+	}
+	if b.StateRoot == nil {
+		b.StateRoot = make([]byte, fieldparams.RootLength)
+	}
+	b.Body = HydrateBeaconBlockBodyGloas(b.Body)
+	return b
+}
+
+// HydrateBeaconBlockBodyGloas hydrates a beacon block body with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydrateBeaconBlockBodyGloas(b *ethpb.BeaconBlockBodyGloas) *ethpb.BeaconBlockBodyGloas {
+	if b == nil {
+		b = &ethpb.BeaconBlockBodyGloas{}
+	}
+	if b.RandaoReveal == nil {
+		b.RandaoReveal = make([]byte, fieldparams.BLSSignatureLength)
+	}
+	if b.Graffiti == nil {
+		b.Graffiti = make([]byte, fieldparams.RootLength)
+	}
+	if b.Eth1Data == nil {
+		b.Eth1Data = &ethpb.Eth1Data{
+			DepositRoot: make([]byte, fieldparams.RootLength),
+			BlockHash:   make([]byte, fieldparams.RootLength),
+		}
+	}
+	if b.SyncAggregate == nil {
+		b.SyncAggregate = &ethpb.SyncAggregate{
+			SyncCommitteeBits:      make([]byte, fieldparams.SyncAggregateSyncCommitteeBytesLength),
+			SyncCommitteeSignature: make([]byte, fieldparams.BLSSignatureLength),
+		}
+	}
+	b.SignedExecutionPayloadBid = HydrateSignedExecutionPayloadBid(b.SignedExecutionPayloadBid)
+	if b.PayloadAttestations == nil {
+		b.PayloadAttestations = make([]*ethpb.PayloadAttestation, 0)
+	}
+	return b
+}
+
+// HydrateSignedExecutionPayloadBid hydrates a signed execution payload bid with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydrateSignedExecutionPayloadBid(b *ethpb.SignedExecutionPayloadBid) *ethpb.SignedExecutionPayloadBid {
+	if b == nil {
+		b = &ethpb.SignedExecutionPayloadBid{}
+	}
+	if b.Signature == nil {
+		b.Signature = make([]byte, fieldparams.BLSSignatureLength)
+	}
+	b.Message = HydrateExecutionPayloadBid(b.Message)
+	return b
+}
+
+// HydrateExecutionPayloadBid hydrates an execution payload bid with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydrateExecutionPayloadBid(b *ethpb.ExecutionPayloadBid) *ethpb.ExecutionPayloadBid {
+	if b == nil {
+		b = &ethpb.ExecutionPayloadBid{}
+	}
+	if b.ParentBlockHash == nil {
+		b.ParentBlockHash = make([]byte, fieldparams.RootLength)
+	}
+	if b.ParentBlockRoot == nil {
+		b.ParentBlockRoot = make([]byte, fieldparams.RootLength)
+	}
+	if b.BlockHash == nil {
+		b.BlockHash = make([]byte, fieldparams.RootLength)
+	}
+	if b.PrevRandao == nil {
+		b.PrevRandao = make([]byte, fieldparams.RootLength)
+	}
+	if b.FeeRecipient == nil {
+		b.FeeRecipient = make([]byte, fieldparams.FeeRecipientLength)
+	}
+	if b.BlobKzgCommitmentsRoot == nil {
+		b.BlobKzgCommitmentsRoot = make([]byte, fieldparams.RootLength)
+	}
+	return b
+}
+
+// HydratePayloadAttestation hydrates a payload attestation with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydratePayloadAttestation(p *ethpb.PayloadAttestation) *ethpb.PayloadAttestation {
+	if p == nil {
+		p = &ethpb.PayloadAttestation{}
+	}
+	if p.AggregationBits == nil {
+		p.AggregationBits = make([]byte, 64)
+	}
+	if p.Signature == nil {
+		p.Signature = make([]byte, fieldparams.BLSSignatureLength)
+	}
+	p.Data = HydratePayloadAttestationData(p.Data)
+	return p
+}
+
+// HydratePayloadAttestationData hydrates a payload attestation data with correct field length sizes
+// to comply with fssz marshalling and unmarshalling rules.
+func HydratePayloadAttestationData(d *ethpb.PayloadAttestationData) *ethpb.PayloadAttestationData {
+	if d == nil {
+		d = &ethpb.PayloadAttestationData{}
+	}
+	if d.BeaconBlockRoot == nil {
+		d.BeaconBlockRoot = make([]byte, fieldparams.RootLength)
+	}
+	return d
+}
+
+// GenerateTestPayloadAttestations generates a slice of payload attestations with non-zero test values.
+// This is useful for testing Gloas-specific fields.
+func GenerateTestPayloadAttestations(count int, slot primitives.Slot) []*ethpb.PayloadAttestation {
+	attestations := make([]*ethpb.PayloadAttestation, count)
+	for i := range count {
+		aggregationBits := make([]byte, 64)
+		aggregationBits[0] = 0x01 // Set at least one bit
+		signature := make([]byte, fieldparams.BLSSignatureLength)
+		signature[0] = byte(i + 1) // Make each signature unique
+		beaconBlockRoot := make([]byte, fieldparams.RootLength)
+		beaconBlockRoot[0] = byte(i + 1) // Make each root unique
+
+		attestations[i] = &ethpb.PayloadAttestation{
+			AggregationBits: aggregationBits,
+			Signature:       signature,
+			Data: &ethpb.PayloadAttestationData{
+				BeaconBlockRoot:   beaconBlockRoot,
+				Slot:              slot,
+				PayloadPresent:    true,
+				BlobDataAvailable: true,
+			},
+		}
+	}
+	return attestations
+}
+
+// GenerateTestSignedExecutionPayloadBid generates a signed execution payload bid with non-zero test values.
+// This is useful for testing Gloas-specific fields.
+func GenerateTestSignedExecutionPayloadBid(slot primitives.Slot) *ethpb.SignedExecutionPayloadBid {
+	parentBlockHash := bytesutil.PadTo([]byte{0x01}, fieldparams.RootLength)
+	parentBlockRoot := bytesutil.PadTo([]byte{0x02}, fieldparams.RootLength)
+	blockHash := bytesutil.PadTo([]byte{0x03}, fieldparams.RootLength)
+	prevRandao := bytesutil.PadTo([]byte{0x04}, fieldparams.RootLength)
+	feeRecipient := bytesutil.PadTo([]byte{0x05}, fieldparams.FeeRecipientLength)
+	blobKzgRoot := bytesutil.PadTo([]byte{0x06}, fieldparams.RootLength)
+	signature := bytesutil.PadTo([]byte{0x07}, fieldparams.BLSSignatureLength)
+
+	return &ethpb.SignedExecutionPayloadBid{
+		Message: &ethpb.ExecutionPayloadBid{
+			Slot:                   slot,
+			BuilderIndex:           1,
+			ParentBlockHash:        parentBlockHash,
+			ParentBlockRoot:        parentBlockRoot,
+			BlockHash:              blockHash,
+			GasLimit:               30000000,
+			PrevRandao:             prevRandao,
+			FeeRecipient:           feeRecipient,
+			Value:                  1000000,
+			BlobKzgCommitmentsRoot: blobKzgRoot,
+		},
+		Signature: signature,
+	}
+}

testing/util/block_test.go

@@ -348,3 +348,81 @@ func Test_PostDenebPbGenericBlock_ErrorsForPlainBlock(t *testing.T) {
 		require.ErrorContains(t, "PbGenericBlock() only supports block content type but got", err)
 	})
 }
+
+func TestHydrateSignedBeaconBlockGloas_NoError(t *testing.T) {
+	b := &ethpbalpha.SignedBeaconBlockGloas{}
+	b = HydrateSignedBeaconBlockGloas(b)
+	_, err := b.HashTreeRoot()
+	require.NoError(t, err)
+	_, err = b.Block.HashTreeRoot()
+	require.NoError(t, err)
+	_, err = b.Block.Body.HashTreeRoot()
+	require.NoError(t, err)
+}
+
+func TestHydratePayloadAttestation_NoError(t *testing.T) {
+	p := &ethpbalpha.PayloadAttestation{}
+	p = HydratePayloadAttestation(p)
+	_, err := p.HashTreeRoot()
+	require.NoError(t, err)
+	_, err = p.Data.HashTreeRoot()
+	require.NoError(t, err)
+}
+
+func TestGenerateTestPayloadAttestations(t *testing.T) {
+	slot := primitives.Slot(123)
+	attestations := GenerateTestPayloadAttestations(3, slot)
+
+	require.Equal(t, 3, len(attestations))
+	for i, att := range attestations {
+		// Verify non-nil fields
+		require.NotNil(t, att.AggregationBits)
+		require.NotNil(t, att.Signature)
+		require.NotNil(t, att.Data)
+		require.NotNil(t, att.Data.BeaconBlockRoot)
+
+		// Verify slot is set correctly
+		require.Equal(t, slot, att.Data.Slot)
+
+		// Verify PayloadPresent and BlobDataAvailable are set
+		require.Equal(t, true, att.Data.PayloadPresent)
+		require.Equal(t, true, att.Data.BlobDataAvailable)
+
+		// Verify unique values
+		require.Equal(t, byte(i+1), att.Signature[0])
+		require.Equal(t, byte(i+1), att.Data.BeaconBlockRoot[0])
+
+		// Verify HashTreeRoot works
+		_, err := att.HashTreeRoot()
+		require.NoError(t, err)
+	}
+}
+
+func TestGenerateTestSignedExecutionPayloadBid(t *testing.T) {
+	slot := primitives.Slot(456)
+	bid := GenerateTestSignedExecutionPayloadBid(slot)
+
+	require.NotNil(t, bid)
+	require.NotNil(t, bid.Message)
+	require.NotNil(t, bid.Signature)
+
+	// Verify slot is set correctly
+	require.Equal(t, slot, bid.Message.Slot)
+
+	// Verify non-zero test values
+	require.Equal(t, primitives.BuilderIndex(1), bid.Message.BuilderIndex)
+	require.Equal(t, uint64(30000000), bid.Message.GasLimit)
+	require.Equal(t, primitives.Gwei(1000000), bid.Message.Value)
+
+	// Verify fields are populated
+	require.NotNil(t, bid.Message.ParentBlockHash)
+	require.NotNil(t, bid.Message.ParentBlockRoot)
+	require.NotNil(t, bid.Message.BlockHash)
+	require.NotNil(t, bid.Message.PrevRandao)
+	require.NotNil(t, bid.Message.FeeRecipient)
+	require.NotNil(t, bid.Message.BlobKzgCommitmentsRoot)
+
+	// Verify HashTreeRoot works
+	_, err := bid.HashTreeRoot()
+	require.NoError(t, err)
+}

testing/util/merge.go

@@ -88,3 +88,12 @@ func NewBeaconBlockContentsFulu() *ethpb.SignedBeaconBlockContentsFulu {
 func NewBlindedBeaconBlockFulu() *ethpb.SignedBlindedBeaconBlockFulu {
 	return HydrateSignedBlindedBeaconBlockFulu(&ethpb.SignedBlindedBeaconBlockFulu{})
 }
+
+// ----------------------------------------------------------------------------
+// Gloas
+// ----------------------------------------------------------------------------
+
+// NewBeaconBlockGloas creates a beacon block with minimum marshalable fields.
+func NewBeaconBlockGloas() *ethpb.SignedBeaconBlockGloas {
+	return HydrateSignedBeaconBlockGloas(&ethpb.SignedBeaconBlockGloas{})
+}

third_party/com_github_offchainlabs_hashtree.patch

@@ -1,7 +1,7 @@
 diff -urN a/BUILD.bazel b/BUILD.bazel
 --- a/BUILD.bazel	1969-12-31 18:00:00.000000000 -0600
 +++ b/BUILD.bazel	2025-01-05 12:00:00.000000000 -0600
-@@ -0,0 +1,86 @@
+@@ -0,0 +1,89 @@
 +load("@io_bazel_rules_go//go:def.bzl", "go_library")
 +
 +go_library(
@@ -44,14 +44,14 @@ diff -urN a/BUILD.bazel b/BUILD.bazel
 +    name = "hashtree_arm64_syso",
 +    srcs = [":hashtree_arm64"],
 +    outs = ["hashtree_arm64.syso"],
-+    cmd = "cp $(location :hashtree_arm64) $@",
++    cmd = "cp $$(echo $(locations :hashtree_arm64) | tr ' ' '\\n' | grep -v '\\.pic\\.' | head -1) $@",
 +)
 +
 +genrule(
 +    name = "hashtree_amd64_syso",
 +    srcs = [":hashtree_amd64"],
 +    outs = ["hashtree_amd64.syso"],
-+    cmd = "cp $(location :hashtree_amd64) $@",
++    cmd = "cp $$(echo $(locations :hashtree_amd64) | tr ' ' '\\n' | grep -v '\\.pic\\.' | head -1) $@",
 +)
 +
 +cc_library(
@@ -83,7 +83,10 @@ diff -urN a/BUILD.bazel b/BUILD.bazel
 +        "src/sha256_sse_x1.S",
 +    ],
 +    hdrs = ["src/hashtree.h"],
-+    copts = ["-O3", "-Wall", "-fno-integrated-as"],
++    copts = ["-O3", "-Wall"] + select({
++        "@platforms//os:windows": [],
++        "//conditions:default": ["-fno-integrated-as"],
++    }),
 +    linkstatic = True,
 +    strip_include_prefix = "src",
 +    visibility = ["//visibility:public"],