GetVersionV2

This PR adds read only wrapper for execution payload envelope

.ethspecify.yml

@@ -1,25 +1,39 @@
-version: v1.7.0-alpha.1
+version: v1.7.0-alpha.2
 style: full
 
 specrefs:
-  search_root: ..
+  search_root: .
+  auto_standardize_names: true
+  auto_add_missing_entries: true
+  require_exceptions_have_fork: true
+
   files:
-    - configs.yml
+    - specrefs/configs.yml
-    - constants.yml
+    - specrefs/constants.yml
-    - containers.yml
+    - specrefs/containers.yml
-    - dataclasses.yml
+    - specrefs/dataclasses.yml
-    - functions.yml
+    - specrefs/functions.yml
-    - presets.yml
+    - specrefs/presets.yml
 
 exceptions:
   presets:
-    # Not implemented: gloas (future fork)
+    # gloas
     - BUILDER_PENDING_WITHDRAWALS_LIMIT#gloas
     - MAX_PAYLOAD_ATTESTATIONS#gloas
     - PTC_SIZE#gloas
 
   constants:
-    # Constants in the KZG library
+    # phase0
+    - BASIS_POINTS#phase0
+    - ENDIANNESS#phase0
+    - MAX_CONCURRENT_REQUESTS#phase0
+    - UINT64_MAX#phase0
+    - UINT64_MAX_SQRT#phase0
+    # altair
+    - PARTICIPATION_FLAG_WEIGHTS#altair
+    # bellatrix
+    - SAFE_SLOTS_TO_IMPORT_OPTIMISTICALLY#bellatrix
+    # deneb
     - BLS_MODULUS#deneb
     - BYTES_PER_COMMITMENT#deneb
     - BYTES_PER_FIELD_ELEMENT#deneb
@@ -33,18 +47,9 @@ exceptions:
     - PRIMITIVE_ROOT_OF_UNITY#deneb
     - RANDOM_CHALLENGE_KZG_BATCH_DOMAIN#deneb
     - RANDOM_CHALLENGE_KZG_CELL_BATCH_DOMAIN#fulu
-
+    # fulu
-    # Not implemented
-    - BASIS_POINTS#phase0
-    - ENDIANNESS#phase0
-    - MAX_CONCURRENT_REQUESTS#phase0
-    - PARTICIPATION_FLAG_WEIGHTS#altair
-    - SAFE_SLOTS_TO_IMPORT_OPTIMISTICALLY#bellatrix
     - UINT256_MAX#fulu
-    - UINT64_MAX#phase0
+    # gloas
-    - UINT64_MAX_SQRT#phase0
-
-    # Not implemented: gloas (future fork)
     - BUILDER_PAYMENT_THRESHOLD_DENOMINATOR#gloas
     - BUILDER_PAYMENT_THRESHOLD_NUMERATOR#gloas
     - BUILDER_WITHDRAWAL_PREFIX#gloas
@@ -61,61 +66,62 @@ exceptions:
     - PTC_TIMELINESS_INDEX#gloas
 
   configs:
-    # Not implemented: gloas (future fork)
+    # gloas
     - AGGREGATE_DUE_BPS_GLOAS#gloas
     - ATTESTATION_DUE_BPS_GLOAS#gloas
     - CONTRIBUTION_DUE_BPS_GLOAS#gloas
     - GLOAS_FORK_EPOCH#gloas
     - GLOAS_FORK_VERSION#gloas
     - MAX_REQUEST_PAYLOADS#gloas
+    - MIN_BUILDER_WITHDRAWABILITY_DELAY#gloas
     - PAYLOAD_ATTESTATION_DUE_BPS#gloas
     - SYNC_MESSAGE_DUE_BPS_GLOAS#gloas
-    - MIN_BUILDER_WITHDRAWABILITY_DELAY#gloas
 
   ssz_objects:
-    # Not implemented
+    # phase0
     - Eth1Block#phase0
-    - MatrixEntry#fulu
+    # capella
-
-    # Not implemented: capella
     - LightClientBootstrap#capella
     - LightClientFinalityUpdate#capella
     - LightClientOptimisticUpdate#capella
     - LightClientUpdate#capella
-
+    # fulu
-    # Not implemented: gloas (future fork)
+    - MatrixEntry#fulu
+    # gloas
     - BeaconBlockBody#gloas
     - BeaconState#gloas
+    - Builder#gloas
     - BuilderPendingPayment#gloas
     - BuilderPendingWithdrawal#gloas
     - DataColumnSidecar#gloas
-    - ExecutionPayloadEnvelope#gloas
     - ExecutionPayloadBid#gloas
+    - ExecutionPayloadEnvelope#gloas
     - ForkChoiceNode#gloas
     - IndexedPayloadAttestation#gloas
     - PayloadAttestation#gloas
     - PayloadAttestationData#gloas
     - PayloadAttestationMessage#gloas
-    - SignedExecutionPayloadEnvelope#gloas
-    - SignedExecutionPayloadBid#gloas
-    - Builder#gloas
     - ProposerPreferences#gloas
+    - SignedExecutionPayloadBid#gloas
+    - SignedExecutionPayloadEnvelope#gloas
     - SignedProposerPreferences#gloas
 
   dataclasses:
-    # Not implemented
+    # phase0
-    - BlobParameters#fulu
-    - ExpectedWithdrawals#capella
-    - ExpectedWithdrawals#electra
     - LatestMessage#phase0
-    - LightClientStore#altair
-    - OptimisticStore#bellatrix
     - Store#phase0
-
+    # altair
-    # Not implemented: capella
+    - LightClientStore#altair
+    # bellatrix
+    - OptimisticStore#bellatrix
+    # capella
+    - ExpectedWithdrawals#capella
     - LightClientStore#capella
-
+    # electra
-    # Not implemented: gloas (future fork)
+    - ExpectedWithdrawals#electra
+    # fulu
+    - BlobParameters#fulu
+    # gloas
     - ExpectedWithdrawals#gloas
     - LatestMessage#gloas
     - Store#gloas
@@ -140,7 +146,6 @@ exceptions:
     - g1_lincomb#deneb
     - hash_to_bls_field#deneb
     - is_power_of_two#deneb
-    - multi_exp#deneb
     - reverse_bits#deneb
     - validate_kzg_g1#deneb
     - verify_blob_kzg_proof#deneb
@@ -175,7 +180,12 @@ exceptions:
     - verify_cell_kzg_proof_batch#fulu
     - verify_cell_kzg_proof_batch_impl#fulu
 
-    # Not implemented: phase0
+    # phase0
+    - update_proposer_boost_root#phase0
+    - is_proposer_equivocation#phase0
+    - record_block_timeliness#phase0
+    - compute_proposer_score#phase0
+    - get_attestation_score#phase0
     - calculate_committee_fraction#phase0
     - compute_fork_version#phase0
     - compute_pulled_up_tip#phase0
@@ -221,8 +231,7 @@ exceptions:
     - validate_on_attestation#phase0
     - validate_target_epoch_against_current_time#phase0
     - xor#phase0
-
+    # altair
-    # Not implemented: altair
     - compute_merkle_proof#altair
     - compute_sync_committee_period_at_slot#altair
     - get_contribution_and_proof#altair
@@ -244,27 +253,29 @@ exceptions:
     - process_sync_committee_contributions#altair
     - set_or_append_list#altair
     - validate_light_client_update#altair
-
+    # bellatrix
-    # Not implemented: bellatrix
     - get_execution_payload#bellatrix
     - is_merge_transition_block#bellatrix
     - is_optimistic_candidate_block#bellatrix
     - latest_verified_ancestor#bellatrix
     - prepare_execution_payload#bellatrix
-
+    # capella
-    # Not implemented: capella
+    - apply_withdrawals#capella
+    - get_balance_after_withdrawals#capella
     - get_lc_execution_root#capella
+    - get_validators_sweep_withdrawals#capella
     - is_valid_light_client_header#capella
     - prepare_execution_payload#capella
     - process_epoch#capella
+    - update_next_withdrawal_index#capella
+    - update_next_withdrawal_validator_index#capella
     - upgrade_lc_bootstrap_to_capella#capella
     - upgrade_lc_finality_update_to_capella#capella
     - upgrade_lc_header_to_capella#capella
     - upgrade_lc_optimistic_update_to_capella#capella
     - upgrade_lc_store_to_capella#capella
     - upgrade_lc_update_to_capella#capella
-
+    # deneb
-    # Not implemented: deneb
     - get_lc_execution_root#deneb
     - is_valid_light_client_header#deneb
     - prepare_execution_payload#deneb
@@ -274,33 +285,34 @@ exceptions:
     - upgrade_lc_optimistic_update_to_deneb#deneb
     - upgrade_lc_store_to_deneb#deneb
     - upgrade_lc_update_to_deneb#deneb
-
+    # electra
-    # Not implemented: electra
     - compute_weak_subjectivity_period#electra
     - current_sync_committee_gindex_at_slot#electra
     - finalized_root_gindex_at_slot#electra
     - get_eth1_vote#electra
     - get_lc_execution_root#electra
+    - get_pending_partial_withdrawals#electra
+    - get_validators_sweep_withdrawals#electra
     - is_compounding_withdrawal_credential#electra
+    - is_eligible_for_partial_withdrawals#electra
     - is_within_weak_subjectivity_period#electra
     - next_sync_committee_gindex_at_slot#electra
     - normalize_merkle_branch#electra
     - prepare_execution_payload#electra
+    - update_pending_partial_withdrawals#electra
     - upgrade_lc_bootstrap_to_electra#electra
     - upgrade_lc_finality_update_to_electra#electra
     - upgrade_lc_header_to_electra#electra
     - upgrade_lc_optimistic_update_to_electra#electra
     - upgrade_lc_store_to_electra#electra
     - upgrade_lc_update_to_electra#electra
-
+    # fulu
-    # Not implemented: fulu
     - compute_matrix#fulu
     - get_blob_parameters#fulu
     - get_data_column_sidecars_from_block#fulu
     - get_data_column_sidecars_from_column_sidecar#fulu
     - recover_matrix#fulu
-
+    # gloas
-    # Not implemented: gloas (future fork)
     - compute_balance_weighted_acceptance#gloas
     - compute_balance_weighted_selection#gloas
     - compute_fork_version#gloas
@@ -368,49 +380,42 @@ exceptions:
     - verify_execution_payload_bid_signature#gloas
     - add_builder_to_registry#gloas
     - apply_deposit_for_builder#gloas
-    - apply_withdrawals#capella
     - apply_withdrawals#gloas
     - can_builder_cover_bid#gloas
-    - compute_proposer_score#phase0
     - convert_builder_index_to_validator_index#gloas
     - convert_validator_index_to_builder_index#gloas
     - get_attestation_score#gloas
     - get_attestation_score#phase0
     - get_balance_after_withdrawals#capella
-    - get_builder_from_deposit#gloas
     - get_builder_withdrawals#gloas
     - get_builders_sweep_withdrawals#gloas
     - get_index_for_new_builder#gloas
     - get_pending_balance_to_withdraw_for_builder#gloas
-    - get_pending_partial_withdrawals#electra
     - get_proposer_preferences_signature#gloas
     - get_upcoming_proposal_slots#gloas
-    - get_validators_sweep_withdrawals#capella
-    - get_validators_sweep_withdrawals#electra
     - initiate_builder_exit#gloas
     - is_active_builder#gloas
     - is_builder_index#gloas
+    - is_data_available#gloas
     - is_eligible_for_partial_withdrawals#electra
     - is_head_late#gloas
     - is_head_weak#gloas
     - is_parent_strong#gloas
-    - is_proposer_equivocation#phase0
     - is_valid_proposal_slot#gloas
+    - onboard_builders_from_pending_deposits#gloas
     - process_deposit_request#gloas
     - process_voluntary_exit#gloas
     - record_block_timeliness#gloas
     - record_block_timeliness#phase0
+    - verify_data_column_sidecar_kzg_proofs#gloas
     - should_apply_proposer_boost#gloas
     - update_builder_pending_withdrawals#gloas
     - update_next_withdrawal_builder_index#gloas
-    - update_next_withdrawal_index#capella
-    - update_next_withdrawal_validator_index#capella
     - update_payload_expected_withdrawals#gloas
-    - update_pending_partial_withdrawals#electra
     - update_proposer_boost_root#gloas
-    - update_proposer_boost_root#phase0
 
   presets:
+    # gloas
     - BUILDER_PENDING_WITHDRAWALS_LIMIT#gloas
     - BUILDER_REGISTRY_LIMIT#gloas
     - MAX_BUILDERS_PER_WITHDRAWALS_SWEEP#gloas

.github/workflows/check-specrefs.yml

@@ -12,11 +12,11 @@ jobs:
     - name: Check version consistency
       run: |
         WORKSPACE_VERSION=$(grep 'consensus_spec_version = ' WORKSPACE | sed 's/.*"\(.*\)"/\1/')
-        ETHSPECIFY_VERSION=$(grep '^version:' specrefs/.ethspecify.yml | sed 's/version: //')
+        ETHSPECIFY_VERSION=$(grep '^version:' .ethspecify.yml | sed 's/version: //')
         if [ "$WORKSPACE_VERSION" != "$ETHSPECIFY_VERSION" ]; then
           echo "Version mismatch between WORKSPACE and ethspecify"
           echo "  WORKSPACE: $WORKSPACE_VERSION"
-          echo "  specrefs/.ethspecify.yml: $ETHSPECIFY_VERSION"
+          echo "  .ethspecify.yml: $ETHSPECIFY_VERSION"
           exit 1
         else
           echo "Versions match: $WORKSPACE_VERSION"
@@ -26,7 +26,7 @@ jobs:
       run: python3 -mpip install ethspecify
 
     - name: Update spec references
-      run: ethspecify process --path=specrefs
+      run: ethspecify
 
     - name: Check for differences
       run: |
@@ -40,4 +40,4 @@ jobs:
         fi
 
     - name: Check spec references
-      run: ethspecify check --path=specrefs
+      run: ethspecify check

WORKSPACE

@@ -273,16 +273,16 @@ filegroup(
     url = "https://github.com/ethereum/EIPs/archive/5480440fe51742ed23342b68cf106cefd427e39d.tar.gz",
 )
 
-consensus_spec_version = "v1.7.0-alpha.1"
+consensus_spec_version = "v1.7.0-alpha.2"
 
 load("@prysm//tools:download_spectests.bzl", "consensus_spec_tests")
 
 consensus_spec_tests(
     name = "consensus_spec_tests",
     flavors = {
-        "general": "sha256-j5R3jA7Oo4OSDMTvpMuD+8RomaCByeFSwtfkq6fL0Zg=",
+        "general": "sha256-iGQsGZ1cHah+2CSod9jC3kN8Ku4n6KO0hIwfINrn/po=",
-        "minimal": "sha256-tdTqByoyswOS4r6OxFmo70y2BP7w1TgEok+gf4cbxB0=",
+        "minimal": "sha256-TgcYt8N8sXSttdHTGvOa+exUZ1zn1UzlAMz0V7i37xc=",
-        "mainnet": "sha256-5gB4dt6SnSDKzdBc06VedId3NkgvSYyv9n9FRxWKwYI=",
+        "mainnet": "sha256-LnXyiLoJtrvEvbqLDSAAqpLMdN/lXv92SAgYG8fNjCs=",
     },
     version = consensus_spec_version,
 )
@@ -298,7 +298,7 @@ filegroup(
     visibility = ["//visibility:public"],
 )
     """,
-    integrity = "sha256-J+43DrK1pF658kTXTwMS6zGf4KDjvas++m8w2a8swpg=",
+    integrity = "sha256-Y/67Dg393PksZj5rTFNLntiJ6hNdB7Rxbu5gZE2gebY=",
     strip_prefix = "consensus-specs-" + consensus_spec_version[1:],
     url = "https://github.com/ethereum/consensus-specs/archive/refs/tags/%s.tar.gz" % consensus_spec_version,
 )

api/fallback/BUILD.bazel

@@ -0,0 +1,19 @@
+load("@prysm//tools/go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "fallback.go",
+        "log.go",
+    ],
+    importpath = "github.com/OffchainLabs/prysm/v7/api/fallback",
+    visibility = ["//visibility:public"],
+    deps = ["@com_github_sirupsen_logrus//:go_default_library"],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["fallback_test.go"],
+    embed = [":go_default_library"],
+    deps = ["//testing/assert:go_default_library"],
+)

api/fallback/fallback.go

@@ -0,0 +1,66 @@
+package fallback
+
+import (
+	"context"
+
+	"github.com/sirupsen/logrus"
+)
+
+// HostProvider is the subset of connection-provider methods that EnsureReady
+// needs. Both grpc.GrpcConnectionProvider and rest.RestConnectionProvider
+// satisfy this interface.
+type HostProvider interface {
+	Hosts() []string
+	CurrentHost() string
+	SwitchHost(index int) error
+}
+
+// ReadyChecker can report whether the current endpoint is ready.
+// iface.NodeClient satisfies this implicitly.
+type ReadyChecker interface {
+	IsReady(ctx context.Context) bool
+}
+
+// EnsureReady iterates through the configured hosts and returns true as soon as
+// one responds as ready. It starts from the provider's current host and wraps
+// around using modular arithmetic, performing failover when a host is not ready.
+func EnsureReady(ctx context.Context, provider HostProvider, checker ReadyChecker) bool {
+	hosts := provider.Hosts()
+	numHosts := len(hosts)
+	startingHost := provider.CurrentHost()
+	var attemptedHosts []string
+
+	// Find current index
+	currentIdx := 0
+	for i, h := range hosts {
+		if h == startingHost {
+			currentIdx = i
+			break
+		}
+	}
+
+	for i := range numHosts {
+		if checker.IsReady(ctx) {
+			if len(attemptedHosts) > 0 {
+				log.WithFields(logrus.Fields{
+					"previous": startingHost,
+					"current":  provider.CurrentHost(),
+					"tried":    attemptedHosts,
+				}).Info("Switched to responsive beacon node")
+			}
+			return true
+		}
+		attemptedHosts = append(attemptedHosts, provider.CurrentHost())
+
+		// Try next host if not the last iteration
+		if i < numHosts-1 {
+			nextIdx := (currentIdx + i + 1) % numHosts
+			if err := provider.SwitchHost(nextIdx); err != nil {
+				log.WithError(err).Error("Failed to switch host")
+			}
+		}
+	}
+
+	log.WithField("tried", attemptedHosts).Warn("No responsive beacon node found")
+	return false
+}

api/fallback/fallback_test.go

@@ -0,0 +1,94 @@
+package fallback
+
+import (
+	"context"
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v7/testing/assert"
+)
+
+// mockHostProvider is a minimal HostProvider for unit tests.
+type mockHostProvider struct {
+	hosts     []string
+	hostIndex int
+}
+
+func (m *mockHostProvider) Hosts() []string { return m.hosts }
+func (m *mockHostProvider) CurrentHost() string {
+	return m.hosts[m.hostIndex%len(m.hosts)]
+}
+func (m *mockHostProvider) SwitchHost(index int) error { m.hostIndex = index; return nil }
+
+// mockReadyChecker records per-call IsReady results in sequence.
+type mockReadyChecker struct {
+	results []bool
+	idx     int
+}
+
+func (m *mockReadyChecker) IsReady(_ context.Context) bool {
+	if m.idx >= len(m.results) {
+		return false
+	}
+	r := m.results[m.idx]
+	m.idx++
+	return r
+}
+
+func TestEnsureReady_SingleHostReady(t *testing.T) {
+	provider := &mockHostProvider{hosts: []string{"http://host1:3500"}, hostIndex: 0}
+	checker := &mockReadyChecker{results: []bool{true}}
+	assert.Equal(t, true, EnsureReady(t.Context(), provider, checker))
+	assert.Equal(t, 0, provider.hostIndex)
+}
+
+func TestEnsureReady_SingleHostNotReady(t *testing.T) {
+	provider := &mockHostProvider{hosts: []string{"http://host1:3500"}, hostIndex: 0}
+	checker := &mockReadyChecker{results: []bool{false}}
+	assert.Equal(t, false, EnsureReady(t.Context(), provider, checker))
+}
+
+func TestEnsureReady_SingleHostError(t *testing.T) {
+	provider := &mockHostProvider{hosts: []string{"http://host1:3500"}, hostIndex: 0}
+	checker := &mockReadyChecker{results: []bool{false}}
+	assert.Equal(t, false, EnsureReady(t.Context(), provider, checker))
+}
+
+func TestEnsureReady_MultipleHostsFirstReady(t *testing.T) {
+	provider := &mockHostProvider{
+		hosts:     []string{"http://host1:3500", "http://host2:3500"},
+		hostIndex: 0,
+	}
+	checker := &mockReadyChecker{results: []bool{true}}
+	assert.Equal(t, true, EnsureReady(t.Context(), provider, checker))
+	assert.Equal(t, 0, provider.hostIndex)
+}
+
+func TestEnsureReady_MultipleHostsFailoverToSecond(t *testing.T) {
+	provider := &mockHostProvider{
+		hosts:     []string{"http://host1:3500", "http://host2:3500"},
+		hostIndex: 0,
+	}
+	checker := &mockReadyChecker{results: []bool{false, true}}
+	assert.Equal(t, true, EnsureReady(t.Context(), provider, checker))
+	assert.Equal(t, 1, provider.hostIndex)
+}
+
+func TestEnsureReady_MultipleHostsNoneReady(t *testing.T) {
+	provider := &mockHostProvider{
+		hosts:     []string{"http://host1:3500", "http://host2:3500", "http://host3:3500"},
+		hostIndex: 0,
+	}
+	checker := &mockReadyChecker{results: []bool{false, false, false}}
+	assert.Equal(t, false, EnsureReady(t.Context(), provider, checker))
+}
+
+func TestEnsureReady_WrapAroundFromNonZeroIndex(t *testing.T) {
+	provider := &mockHostProvider{
+		hosts:     []string{"http://host0:3500", "http://host1:3500", "http://host2:3500"},
+		hostIndex: 1,
+	}
+	// host1 (start) fails, host2 fails, host0 succeeds
+	checker := &mockReadyChecker{results: []bool{false, false, true}}
+	assert.Equal(t, true, EnsureReady(t.Context(), provider, checker))
+	assert.Equal(t, 0, provider.hostIndex)
+}

api/fallback/log.go

@@ -1,9 +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 blocks
+package fallback
 
 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", "consensus-types/blocks")
+var log = logrus.WithField("package", "api/fallback")

api/grpc/grpc_connection_provider.go

@@ -25,6 +25,11 @@ type GrpcConnectionProvider interface {
 	// SwitchHost switches to the endpoint at the given index.
 	// The new connection is created lazily on next CurrentConn() call.
 	SwitchHost(index int) error
+	// ConnectionCounter returns a monotonically increasing counter that increments
+	// each time SwitchHost changes the active endpoint. This allows consumers to
+	// detect connection changes even when the host string returns to a previous value
+	// (e.g., host0 → host1 → host0).
+	ConnectionCounter() uint64
 	// Close closes the current connection.
 	Close()
 }
@@ -38,6 +43,7 @@ type grpcConnectionProvider struct {
 	// Current connection state (protected by mutex)
 	currentIndex uint64
 	conn         *grpc.ClientConn
+	connCounter  uint64
 
 	mu     sync.Mutex
 	closed bool
@@ -138,6 +144,7 @@ func (p *grpcConnectionProvider) SwitchHost(index int) error {
 
 	p.conn = nil // Clear immediately - new connection created lazily
 	p.currentIndex = uint64(index)
+	p.connCounter++
 
 	// Close old connection asynchronously to avoid blocking the caller
 	if oldConn != nil {
@@ -155,6 +162,12 @@ func (p *grpcConnectionProvider) SwitchHost(index int) error {
 	return nil
 }
 
+func (p *grpcConnectionProvider) ConnectionCounter() uint64 {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	return p.connCounter
+}
+
 func (p *grpcConnectionProvider) Close() {
 	p.mu.Lock()
 	defer p.mu.Unlock()

api/grpc/mock_grpc_provider.go

@@ -4,17 +4,24 @@ import "google.golang.org/grpc"
 
 // MockGrpcProvider implements GrpcConnectionProvider for testing.
 type MockGrpcProvider struct {
-	MockConn  *grpc.ClientConn
+	MockConn     *grpc.ClientConn
-	MockHosts []string
+	MockHosts    []string
+	CurrentIndex int
+	ConnCounter  uint64
 }
 
 func (m *MockGrpcProvider) CurrentConn() *grpc.ClientConn { return m.MockConn }
 func (m *MockGrpcProvider) CurrentHost() string {
 	if len(m.MockHosts) > 0 {
-		return m.MockHosts[0]
+		return m.MockHosts[m.CurrentIndex]
 	}
 	return ""
 }
-func (m *MockGrpcProvider) Hosts() []string      { return m.MockHosts }
+func (m *MockGrpcProvider) Hosts() []string { return m.MockHosts }
-func (m *MockGrpcProvider) SwitchHost(int) error { return nil }
+func (m *MockGrpcProvider) SwitchHost(idx int) error {
-func (m *MockGrpcProvider) Close()               {}
+	m.CurrentIndex = idx
+	m.ConnCounter++
+	return nil
+}
+func (m *MockGrpcProvider) ConnectionCounter() uint64 { return m.ConnCounter }
+func (m *MockGrpcProvider) Close()                    {}

api/rest/mock_rest_provider.go

@@ -9,13 +9,13 @@ import (
 // MockRestProvider implements RestConnectionProvider for testing.
 type MockRestProvider struct {
 	MockClient  *http.Client
-	MockHandler RestHandler
+	MockHandler Handler
 	MockHosts   []string
 	HostIndex   int
 }
 
 func (m *MockRestProvider) HttpClient() *http.Client { return m.MockClient }
-func (m *MockRestProvider) RestHandler() RestHandler { return m.MockHandler }
+func (m *MockRestProvider) Handler() Handler         { return m.MockHandler }
 func (m *MockRestProvider) CurrentHost() string {
 	if len(m.MockHosts) > 0 {
 		return m.MockHosts[m.HostIndex%len(m.MockHosts)]
@@ -25,25 +25,22 @@ func (m *MockRestProvider) CurrentHost() string {
 func (m *MockRestProvider) Hosts() []string            { return m.MockHosts }
 func (m *MockRestProvider) SwitchHost(index int) error { m.HostIndex = index; return nil }
 
-// MockRestHandler implements RestHandler for testing.
+// MockHandler implements Handler for testing.
-type MockRestHandler struct {
+type MockHandler struct {
-	MockHost   string
+	MockHost string
-	MockClient *http.Client
 }
 
-func (m *MockRestHandler) Get(_ context.Context, _ string, _ any) error { return nil }
+func (m *MockHandler) Get(_ context.Context, _ string, _ any) error { return nil }
-func (m *MockRestHandler) GetStatusCode(_ context.Context, _ string) (int, error) {
+func (m *MockHandler) GetStatusCode(_ context.Context, _ string) (int, error) {
 	return http.StatusOK, nil
 }
-func (m *MockRestHandler) GetSSZ(_ context.Context, _ string) ([]byte, http.Header, error) {
+func (m *MockHandler) GetSSZ(_ context.Context, _ string) ([]byte, http.Header, error) {
 	return nil, nil, nil
 }
-func (m *MockRestHandler) Post(_ context.Context, _ string, _ map[string]string, _ *bytes.Buffer, _ any) error {
+func (m *MockHandler) Post(_ context.Context, _ string, _ map[string]string, _ *bytes.Buffer, _ any) error {
 	return nil
 }
-func (m *MockRestHandler) PostSSZ(_ context.Context, _ string, _ map[string]string, _ *bytes.Buffer) ([]byte, http.Header, error) {
+func (m *MockHandler) PostSSZ(_ context.Context, _ string, _ map[string]string, _ *bytes.Buffer) ([]byte, http.Header, error) {
 	return nil, nil, nil
 }
-func (m *MockRestHandler) HttpClient() *http.Client { return m.MockClient }
+func (m *MockHandler) Host() string { return m.MockHost }
-func (m *MockRestHandler) Host() string             { return m.MockHost }
-func (m *MockRestHandler) SwitchHost(host string)   { m.MockHost = host }

api/rest/rest_connection_provider.go

@@ -17,8 +17,8 @@ import (
 type RestConnectionProvider interface {
 	// HttpClient returns the configured HTTP client with headers, timeout, and optional tracing.
 	HttpClient() *http.Client
-	// RestHandler returns the REST handler for making API requests.
+	// Handler returns the REST handler for making API requests.
-	RestHandler() RestHandler
+	Handler() Handler
 	// CurrentHost returns the current REST API endpoint URL.
 	CurrentHost() string
 	// Hosts returns all configured REST API endpoint URLs.
@@ -54,7 +54,7 @@ func WithTracing() RestConnectionProviderOption {
 type restConnectionProvider struct {
 	endpoints     []string
 	httpClient    *http.Client
-	restHandler   RestHandler
+	restHandler   *handler
 	currentIndex  atomic.Uint64
 	timeout       time.Duration
 	headers       map[string][]string
@@ -96,7 +96,7 @@ func NewRestConnectionProvider(endpoint string, opts ...RestConnectionProviderOp
 	}
 
 	// Create the REST handler with the HTTP client and initial host
-	p.restHandler = newRestHandler(*p.httpClient, endpoints[0])
+	p.restHandler = newHandler(*p.httpClient, endpoints[0])
 
 	log.WithFields(logrus.Fields{
 		"endpoints": endpoints,
@@ -124,7 +124,7 @@ func (p *restConnectionProvider) HttpClient() *http.Client {
 	return p.httpClient
 }
 
-func (p *restConnectionProvider) RestHandler() RestHandler {
+func (p *restConnectionProvider) Handler() Handler {
 	return p.restHandler
 }
 

api/rest/rest_handler.go

@@ -21,32 +21,35 @@ import (
 
 type reqOption func(*http.Request)
 
-// RestHandler defines the interface for making REST API requests.
+// Handler defines the interface for making REST API requests.
-type RestHandler interface {
+type Handler interface {
 	Get(ctx context.Context, endpoint string, resp any) error
 	GetStatusCode(ctx context.Context, endpoint string) (int, error)
 	GetSSZ(ctx context.Context, endpoint string) ([]byte, http.Header, error)
 	Post(ctx context.Context, endpoint string, headers map[string]string, data *bytes.Buffer, resp any) error
 	PostSSZ(ctx context.Context, endpoint string, headers map[string]string, data *bytes.Buffer) ([]byte, http.Header, error)
-	HttpClient() *http.Client
 	Host() string
-	SwitchHost(host string)
 }
 
-type restHandler struct {
+type handler struct {
 	client       http.Client
 	host         string
 	reqOverrides []reqOption
 }
 
-// newRestHandler returns a RestHandler (internal use)
+// newHandler returns a *handler for internal use within the rest package.
-func newRestHandler(client http.Client, host string) RestHandler {
+func newHandler(client http.Client, host string) *handler {
-	return NewRestHandler(client, host)
+	rh := &handler{
+		client: client,
+		host:   host,
+	}
+	rh.appendAcceptOverride()
+	return rh
 }
 
-// NewRestHandler returns a RestHandler
+// NewHandler returns a Handler
-func NewRestHandler(client http.Client, host string) RestHandler {
+func NewHandler(client http.Client, host string) Handler {
-	rh := &restHandler{
+	rh := &handler{
 		client: client,
 		host:   host,
 	}
@@ -57,7 +60,7 @@ func NewRestHandler(client http.Client, host string) RestHandler {
 // appendAcceptOverride enables the Accept header to be customized at runtime via an environment variable.
 // This is specified as an env var because it is a niche option that prysm may use for performance testing or debugging
 // bug which users are unlikely to need. Using an env var keeps the set of user-facing flags cleaner.
-func (c *restHandler) appendAcceptOverride() {
+func (c *handler) appendAcceptOverride() {
 	if accept := os.Getenv(params.EnvNameOverrideAccept); accept != "" {
 		c.reqOverrides = append(c.reqOverrides, func(req *http.Request) {
 			req.Header.Set("Accept", accept)
@@ -66,18 +69,18 @@ func (c *restHandler) appendAcceptOverride() {
 }
 
 // HttpClient returns the underlying HTTP client of the handler
-func (c *restHandler) HttpClient() *http.Client {
+func (c *handler) HttpClient() *http.Client {
 	return &c.client
 }
 
 // Host returns the underlying HTTP host
-func (c *restHandler) Host() string {
+func (c *handler) Host() string {
 	return c.host
 }
 
 // Get sends a GET request and decodes the response body as a JSON object into the passed in object.
 // If an HTTP error is returned, the body is decoded as a DefaultJsonError JSON object and returned as the first return value.
-func (c *restHandler) Get(ctx context.Context, endpoint string, resp any) error {
+func (c *handler) Get(ctx context.Context, endpoint string, resp any) error {
 	url := c.host + endpoint
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
 	if err != nil {
@@ -100,7 +103,7 @@ func (c *restHandler) Get(ctx context.Context, endpoint string, resp any) error
 // GetStatusCode sends a GET request and returns only the HTTP status code.
 // This is useful for endpoints like /eth/v1/node/health that communicate status via HTTP codes
 // (200 = ready, 206 = syncing, 503 = unavailable) rather than response bodies.
-func (c *restHandler) GetStatusCode(ctx context.Context, endpoint string) (int, error) {
+func (c *handler) GetStatusCode(ctx context.Context, endpoint string) (int, error) {
 	url := c.host + endpoint
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
 	if err != nil {
@@ -119,7 +122,7 @@ func (c *restHandler) GetStatusCode(ctx context.Context, endpoint string) (int,
 	return httpResp.StatusCode, nil
 }
 
-func (c *restHandler) GetSSZ(ctx context.Context, endpoint string) ([]byte, http.Header, error) {
+func (c *handler) GetSSZ(ctx context.Context, endpoint string) ([]byte, http.Header, error) {
 	url := c.host + endpoint
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
 	if err != nil {
@@ -174,7 +177,7 @@ func (c *restHandler) GetSSZ(ctx context.Context, endpoint string) ([]byte, http
 
 // Post sends a POST request and decodes the response body as a JSON object into the passed in object.
 // If an HTTP error is returned, the body is decoded as a DefaultJsonError JSON object and returned as the first return value.
-func (c *restHandler) Post(
+func (c *handler) Post(
 	ctx context.Context,
 	apiEndpoint string,
 	headers map[string]string,
@@ -210,7 +213,7 @@ func (c *restHandler) Post(
 }
 
 // PostSSZ sends a POST request and prefers an SSZ (application/octet-stream) response body.
-func (c *restHandler) PostSSZ(
+func (c *handler) PostSSZ(
 	ctx context.Context,
 	apiEndpoint string,
 	headers map[string]string,
@@ -311,6 +314,6 @@ func decodeResp(httpResp *http.Response, resp any) error {
 	return nil
 }
 
-func (c *restHandler) SwitchHost(host string) {
+func (c *handler) SwitchHost(host string) {
 	c.host = host
 }

api/server/structs/block.go

@@ -509,17 +509,17 @@ func (s *SignedBlindedBeaconBlockFulu) SigString() string {
 // ----------------------------------------------------------------------------
 
 type ExecutionPayloadBid struct {
-	ParentBlockHash        string `json:"parent_block_hash"`
+	ParentBlockHash    string   `json:"parent_block_hash"`
-	ParentBlockRoot        string `json:"parent_block_root"`
+	ParentBlockRoot    string   `json:"parent_block_root"`
-	BlockHash              string `json:"block_hash"`
+	BlockHash          string   `json:"block_hash"`
-	PrevRandao             string `json:"prev_randao"`
+	PrevRandao         string   `json:"prev_randao"`
-	FeeRecipient           string `json:"fee_recipient"`
+	FeeRecipient       string   `json:"fee_recipient"`
-	GasLimit               string `json:"gas_limit"`
+	GasLimit           string   `json:"gas_limit"`
-	BuilderIndex           string `json:"builder_index"`
+	BuilderIndex       string   `json:"builder_index"`
-	Slot                   string `json:"slot"`
+	Slot               string   `json:"slot"`
-	Value                  string `json:"value"`
+	Value              string   `json:"value"`
-	ExecutionPayment       string `json:"execution_payment"`
+	ExecutionPayment   string   `json:"execution_payment"`
-	BlobKzgCommitmentsRoot string `json:"blob_kzg_commitments_root"`
+	BlobKzgCommitments []string `json:"blob_kzg_commitments"`
 }
 
 type SignedExecutionPayloadBid struct {

api/server/structs/conversions_block.go

@@ -2939,18 +2939,22 @@ func SignedExecutionPayloadBidFromConsensus(b *eth.SignedExecutionPayloadBid) *S
 }
 
 func ExecutionPayloadBidFromConsensus(b *eth.ExecutionPayloadBid) *ExecutionPayloadBid {
+	blobKzgCommitments := make([]string, len(b.BlobKzgCommitments))
+	for i := range b.BlobKzgCommitments {
+		blobKzgCommitments[i] = hexutil.Encode(b.BlobKzgCommitments[i])
+	}
 	return &ExecutionPayloadBid{
-		ParentBlockHash:        hexutil.Encode(b.ParentBlockHash),
+		ParentBlockHash:    hexutil.Encode(b.ParentBlockHash),
-		ParentBlockRoot:        hexutil.Encode(b.ParentBlockRoot),
+		ParentBlockRoot:    hexutil.Encode(b.ParentBlockRoot),
-		BlockHash:              hexutil.Encode(b.BlockHash),
+		BlockHash:          hexutil.Encode(b.BlockHash),
-		PrevRandao:             hexutil.Encode(b.PrevRandao),
+		PrevRandao:         hexutil.Encode(b.PrevRandao),
-		FeeRecipient:           hexutil.Encode(b.FeeRecipient),
+		FeeRecipient:       hexutil.Encode(b.FeeRecipient),
-		GasLimit:               fmt.Sprintf("%d", b.GasLimit),
+		GasLimit:           fmt.Sprintf("%d", b.GasLimit),
-		BuilderIndex:           fmt.Sprintf("%d", b.BuilderIndex),
+		BuilderIndex:       fmt.Sprintf("%d", b.BuilderIndex),
-		Slot:                   fmt.Sprintf("%d", b.Slot),
+		Slot:               fmt.Sprintf("%d", b.Slot),
-		Value:                  fmt.Sprintf("%d", b.Value),
+		Value:              fmt.Sprintf("%d", b.Value),
-		ExecutionPayment:       fmt.Sprintf("%d", b.ExecutionPayment),
+		ExecutionPayment:   fmt.Sprintf("%d", b.ExecutionPayment),
-		BlobKzgCommitmentsRoot: hexutil.Encode(b.BlobKzgCommitmentsRoot),
+		BlobKzgCommitments: blobKzgCommitments,
 	}
 }
 
@@ -3187,22 +3191,30 @@ func (b *ExecutionPayloadBid) ToConsensus() (*eth.ExecutionPayloadBid, error) {
 	if err != nil {
 		return nil, server.NewDecodeError(err, "ExecutionPayment")
 	}
-	blobKzgCommitmentsRoot, err := bytesutil.DecodeHexWithLength(b.BlobKzgCommitmentsRoot, fieldparams.RootLength)
+	err = slice.VerifyMaxLength(b.BlobKzgCommitments, fieldparams.MaxBlobCommitmentsPerBlock)
 	if err != nil {
-		return nil, server.NewDecodeError(err, "BlobKzgCommitmentsRoot")
+		return nil, server.NewDecodeError(err, "BlobKzgCommitments")
+	}
+	blobKzgCommitments := make([][]byte, len(b.BlobKzgCommitments))
+	for i, commitment := range b.BlobKzgCommitments {
+		kzg, err := bytesutil.DecodeHexWithLength(commitment, fieldparams.BLSPubkeyLength)
+		if err != nil {
+			return nil, server.NewDecodeError(err, fmt.Sprintf("BlobKzgCommitments[%d]", i))
+		}
+		blobKzgCommitments[i] = kzg
 	}
 	return &eth.ExecutionPayloadBid{
-		ParentBlockHash:        parentBlockHash,
+		ParentBlockHash:    parentBlockHash,
-		ParentBlockRoot:        parentBlockRoot,
+		ParentBlockRoot:    parentBlockRoot,
-		BlockHash:              blockHash,
+		BlockHash:          blockHash,
-		PrevRandao:             prevRandao,
+		PrevRandao:         prevRandao,
-		FeeRecipient:           feeRecipient,
+		FeeRecipient:       feeRecipient,
-		GasLimit:               gasLimit,
+		GasLimit:           gasLimit,
-		BuilderIndex:           primitives.BuilderIndex(builderIndex),
+		BuilderIndex:       primitives.BuilderIndex(builderIndex),
-		Slot:                   primitives.Slot(slot),
+		Slot:               primitives.Slot(slot),
-		Value:                  primitives.Gwei(value),
+		Value:              primitives.Gwei(value),
-		ExecutionPayment:       primitives.Gwei(executionPayment),
+		ExecutionPayment:   primitives.Gwei(executionPayment),
-		BlobKzgCommitmentsRoot: blobKzgCommitmentsRoot,
+		BlobKzgCommitments: blobKzgCommitments,
 	}, nil
 }
 

api/server/structs/endpoints_node.go

@@ -63,6 +63,19 @@ type PeerCount struct {
 	Connected     string `json:"connected"`
 	Disconnecting string `json:"disconnecting"`
 }
+type GetVersionV2Response struct {
+	Data *VersionV2 `json:"data"`
+}
+type VersionV2 struct {
+	BeaconNode      *ClientVersionV1   `json:"beacon_node"`
+	ExecutionClient []*ClientVersionV1 `json:"execution_client"`
+}
+type ClientVersionV1 struct {
+	Code    string `json:"code"`
+	Name    string `json:"name"`
+	Version string `json:"version"`
+	Commit  string `json:"commit"`
+}
 
 type GetVersionResponse struct {
 	Data *Version `json:"data"`

beacon-chain/blockchain/BUILD.bazel

@@ -85,6 +85,7 @@ go_library(
         "//consensus-types/primitives:go_default_library",
         "//crypto/bls:go_default_library",
         "//encoding/bytesutil:go_default_library",
+        "//io/logs:go_default_library",
         "//math:go_default_library",
         "//monitoring/tracing:go_default_library",
         "//monitoring/tracing/trace:go_default_library",

beacon-chain/blockchain/kzg/kzg.go

@@ -110,7 +110,7 @@ func VerifyCellKZGProofBatch(commitmentsBytes []Bytes48, cellIndices []uint64, c
 	ckzgCells := make([]ckzg4844.Cell, len(cells))
 
 	for i := range cells {
-		ckzgCells[i] = ckzg4844.Cell(cells[i])
+		copy(ckzgCells[i][:], cells[i][:])
 	}
 	return ckzg4844.VerifyCellKZGProofBatch(commitmentsBytes, cellIndices, ckzgCells, proofsBytes)
 }

beacon-chain/blockchain/log_helpers.go

@@ -10,6 +10,7 @@ import (
 	consensus_types "github.com/OffchainLabs/prysm/v7/consensus-types"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/interfaces"
 	"github.com/OffchainLabs/prysm/v7/encoding/bytesutil"
+	"github.com/OffchainLabs/prysm/v7/io/logs"
 	ethpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
 	"github.com/OffchainLabs/prysm/v7/runtime/version"
 	prysmTime "github.com/OffchainLabs/prysm/v7/time"
@@ -87,36 +88,45 @@ func logStateTransitionData(b interfaces.ReadOnlyBeaconBlock) error {
 func logBlockSyncStatus(block interfaces.ReadOnlyBeaconBlock, blockRoot [32]byte, justified, finalized *ethpb.Checkpoint, receivedTime time.Time, genesis time.Time, daWaitedTime time.Duration) error {
 	startTime, err := slots.StartTime(genesis, block.Slot())
 	if err != nil {
-		return err
+		return errors.Wrap(err, "failed to get slot start time")
 	}
-	level := log.Logger.GetLevel()
+	parentRoot := block.ParentRoot()
+	blkRoot := fmt.Sprintf("0x%s...", hex.EncodeToString(blockRoot[:])[:8])
+	finalizedRoot := fmt.Sprintf("0x%s...", hex.EncodeToString(finalized.Root)[:8])
+	sinceSlotStartTime := prysmTime.Now().Sub(startTime)
+
+	lessFields := logrus.Fields{
+		"slot":               block.Slot(),
+		"block":              blkRoot,
+		"finalizedEpoch":     finalized.Epoch,
+		"finalizedRoot":      finalizedRoot,
+		"epoch":              slots.ToEpoch(block.Slot()),
+		"sinceSlotStartTime": sinceSlotStartTime,
+	}
+	moreFields := logrus.Fields{
+		"slot":                       block.Slot(),
+		"slotInEpoch":                block.Slot() % params.BeaconConfig().SlotsPerEpoch,
+		"block":                      blkRoot,
+		"epoch":                      slots.ToEpoch(block.Slot()),
+		"justifiedEpoch":             justified.Epoch,
+		"justifiedRoot":              fmt.Sprintf("0x%s...", hex.EncodeToString(justified.Root)[:8]),
+		"finalizedEpoch":             finalized.Epoch,
+		"finalizedRoot":              finalizedRoot,
+		"parentRoot":                 fmt.Sprintf("0x%s...", hex.EncodeToString(parentRoot[:])[:8]),
+		"version":                    version.String(block.Version()),
+		"sinceSlotStartTime":         sinceSlotStartTime,
+		"chainServiceProcessedTime":  prysmTime.Now().Sub(receivedTime) - daWaitedTime,
+		"dataAvailabilityWaitedTime": daWaitedTime,
+	}
+
+	level := logs.PackageVerbosity("beacon-chain/blockchain")
 	if level >= logrus.DebugLevel {
-		parentRoot := block.ParentRoot()
+		log.WithFields(moreFields).Info("Synced new block")
-		lf := logrus.Fields{
+		return nil
-			"slot":                       block.Slot(),
-			"slotInEpoch":                block.Slot() % params.BeaconConfig().SlotsPerEpoch,
-			"block":                      fmt.Sprintf("0x%s...", hex.EncodeToString(blockRoot[:])[:8]),
-			"epoch":                      slots.ToEpoch(block.Slot()),
-			"justifiedEpoch":             justified.Epoch,
-			"justifiedRoot":              fmt.Sprintf("0x%s...", hex.EncodeToString(justified.Root)[:8]),
-			"finalizedEpoch":             finalized.Epoch,
-			"finalizedRoot":              fmt.Sprintf("0x%s...", hex.EncodeToString(finalized.Root)[:8]),
-			"parentRoot":                 fmt.Sprintf("0x%s...", hex.EncodeToString(parentRoot[:])[:8]),
-			"version":                    version.String(block.Version()),
-			"sinceSlotStartTime":         prysmTime.Now().Sub(startTime),
-			"chainServiceProcessedTime":  prysmTime.Now().Sub(receivedTime) - daWaitedTime,
-			"dataAvailabilityWaitedTime": daWaitedTime,
-		}
-		log.WithFields(lf).Debug("Synced new block")
-	} else {
-		log.WithFields(logrus.Fields{
-			"slot":           block.Slot(),
-			"block":          fmt.Sprintf("0x%s...", hex.EncodeToString(blockRoot[:])[:8]),
-			"finalizedEpoch": finalized.Epoch,
-			"finalizedRoot":  fmt.Sprintf("0x%s...", hex.EncodeToString(finalized.Root)[:8]),
-			"epoch":          slots.ToEpoch(block.Slot()),
-		}).Info("Synced new block")
 	}
+
+	log.WithFields(lessFields).WithField(logs.LogTargetField, logs.LogTargetUser).Info("Synced new block")
+	log.WithFields(moreFields).WithField(logs.LogTargetField, logs.LogTargetEphemeral).Info("Synced new block")
 	return nil
 }
 

beacon-chain/blockchain/setup_test.go

@@ -89,7 +89,7 @@ func (mb *mockBroadcaster) BroadcastLightClientFinalityUpdate(_ context.Context,
 	return nil
 }
 
-func (mb *mockBroadcaster) BroadcastDataColumnSidecars(_ context.Context, _ []blocks.VerifiedRODataColumn, _ []blocks.PartialDataColumn) error {
+func (mb *mockBroadcaster) BroadcastDataColumnSidecars(_ context.Context, _ []blocks.VerifiedRODataColumn) error {
 	mb.broadcastCalled = true
 	return nil
 }

beacon-chain/core/gloas/bid.go

@@ -17,27 +17,56 @@ import (
 )
 
 // ProcessExecutionPayloadBid processes a signed execution payload bid in the Gloas fork.
-// Spec v1.7.0-alpha.0 (pseudocode):
-// process_execution_payload_bid(state: BeaconState, block: BeaconBlock):
 //
-//	signed_bid = block.body.signed_execution_payload_bid
+//	<spec fn="process_execution_payload_bid" fork="gloas" hash="823c9f3a">
-//	bid = signed_bid.message
+//	def process_execution_payload_bid(state: BeaconState, block: BeaconBlock) -> None:
-//	builder_index = bid.builder_index
+//	    signed_bid = block.body.signed_execution_payload_bid
-//	amount = bid.value
+//	    bid = signed_bid.message
-//	if builder_index == BUILDER_INDEX_SELF_BUILD:
+//	    builder_index = bid.builder_index
-//	  assert amount == 0
+//	    amount = bid.value
-//	  assert signed_bid.signature == G2_POINT_AT_INFINITY
+//
-//	else:
+//	    # For self-builds, amount must be zero regardless of withdrawal credential prefix
-//	  assert is_active_builder(state, builder_index)
+//	    if builder_index == BUILDER_INDEX_SELF_BUILD:
-//	  assert can_builder_cover_bid(state, builder_index, amount)
+//	        assert amount == 0
-//	  assert verify_execution_payload_bid_signature(state, signed_bid)
+//	        assert signed_bid.signature == bls.G2_POINT_AT_INFINITY
-//	assert bid.slot == block.slot
+//	    else:
-//	assert bid.parent_block_hash == state.latest_block_hash
+//	        # Verify that the builder is active
-//	assert bid.parent_block_root == block.parent_root
+//	        assert is_active_builder(state, builder_index)
-//	assert bid.prev_randao == get_randao_mix(state, get_current_epoch(state))
+//	        # Verify that the builder has funds to cover the bid
-//	if amount > 0:
+//	        assert can_builder_cover_bid(state, builder_index, amount)
-//	  state.builder_pending_payments[...] = BuilderPendingPayment(weight=0, withdrawal=BuilderPendingWithdrawal(fee_recipient=bid.fee_recipient, amount=amount, builder_index=builder_index))
+//	        # Verify that the bid signature is valid
-//	state.latest_execution_payload_bid = bid
+//	        assert verify_execution_payload_bid_signature(state, signed_bid)
+//
+//	    # Verify commitments are under limit
+//	    assert (
+//	        len(bid.blob_kzg_commitments)
+//	        <= get_blob_parameters(get_current_epoch(state)).max_blobs_per_block
+//	    )
+//
+//	    # Verify that the bid is for the current slot
+//	    assert bid.slot == block.slot
+//	    # Verify that the bid is for the right parent block
+//	    assert bid.parent_block_hash == state.latest_block_hash
+//	    assert bid.parent_block_root == block.parent_root
+//	    assert bid.prev_randao == get_randao_mix(state, get_current_epoch(state))
+//
+//	    # Record the pending payment if there is some payment
+//	    if amount > 0:
+//	        pending_payment = BuilderPendingPayment(
+//	            weight=0,
+//	            withdrawal=BuilderPendingWithdrawal(
+//	                fee_recipient=bid.fee_recipient,
+//	                amount=amount,
+//	                builder_index=builder_index,
+//	            ),
+//	        )
+//	        state.builder_pending_payments[SLOTS_PER_EPOCH + bid.slot % SLOTS_PER_EPOCH] = (
+//	            pending_payment
+//	        )
+//
+//	    # Cache the signed execution payload bid
+//	    state.latest_execution_payload_bid = bid
+//	</spec>
 func ProcessExecutionPayloadBid(st state.BeaconState, block interfaces.ReadOnlyBeaconBlock) error {
 	signedBid, err := block.Body().SignedExecutionPayloadBid()
 	if err != nil {
@@ -86,6 +115,12 @@ func ProcessExecutionPayloadBid(st state.BeaconState, block interfaces.ReadOnlyB
 		}
 	}
 
+	maxBlobsPerBlock := params.BeaconConfig().MaxBlobsPerBlockAtEpoch(slots.ToEpoch(block.Slot()))
+	commitmentCount := bid.BlobKzgCommitmentCount()
+	if commitmentCount > uint64(maxBlobsPerBlock) {
+		return fmt.Errorf("bid has %d blob KZG commitments over max %d", commitmentCount, maxBlobsPerBlock)
+	}
+
 	if err := validateBidConsistency(st, bid, block); err != nil {
 		return errors.Wrap(err, "bid consistency validation failed")
 	}

beacon-chain/core/gloas/bid_test.go

@@ -184,6 +184,28 @@ func signBid(t *testing.T, sk common.SecretKey, bid *ethpb.ExecutionPayloadBid,
 	return out
 }
 
+func blobCommitmentsForSlot(slot primitives.Slot, count int) [][]byte {
+	max := int(params.BeaconConfig().MaxBlobsPerBlockAtEpoch(slots.ToEpoch(slot)))
+	if count > max {
+		count = max
+	}
+	commitments := make([][]byte, count)
+	for i := range commitments {
+		commitments[i] = bytes.Repeat([]byte{0xEE}, 48)
+	}
+	return commitments
+}
+
+func tooManyBlobCommitmentsForSlot(slot primitives.Slot) [][]byte {
+	max := int(params.BeaconConfig().MaxBlobsPerBlockAtEpoch(slots.ToEpoch(slot)))
+	count := max + 1
+	commitments := make([][]byte, count)
+	for i := range commitments {
+		commitments[i] = bytes.Repeat([]byte{0xEE}, 48)
+	}
+	return commitments
+}
+
 func TestProcessExecutionPayloadBid_SelfBuildSuccess(t *testing.T) {
 	slot := primitives.Slot(12)
 	proposerIdx := primitives.ValidatorIndex(0)
@@ -194,17 +216,17 @@ func TestProcessExecutionPayloadBid_SelfBuildSuccess(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinActivationBalance+1000, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xCC}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xCC}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xDD}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xDD}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  0,
+		Value:              0,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xEE}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xFF}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xFF}, 20),
 	}
 	signed := &ethpb.SignedExecutionPayloadBid{
 		Message:   bid,
@@ -236,16 +258,16 @@ func TestProcessExecutionPayloadBid_SelfBuildNonZeroAmountFails(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinActivationBalance+1000, randao, latestHash, [48]byte{})
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xAA}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xAA}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xBB}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xBB}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  10,
+		Value:              10,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xCC}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xDD}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xDD}, 20),
 	}
 	signed := &ethpb.SignedExecutionPayloadBid{
 		Message:   bid,
@@ -280,17 +302,17 @@ func TestProcessExecutionPayloadBid_PendingPaymentAndCacheBid(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, balance, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xCC}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xCC}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xDD}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xDD}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  500_000,
+		Value:              500_000,
-		ExecutionPayment:       1,
+		ExecutionPayment:   1,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xEE}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xFF}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xFF}, 20),
 	}
 
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
@@ -341,17 +363,17 @@ func TestProcessExecutionPayloadBid_BuilderNotActive(t *testing.T) {
 	state = stateIface.(*state_native.BeaconState)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0x03}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0x03}, 32),
-		BlockHash:              bytes.Repeat([]byte{0x04}, 32),
+		BlockHash:          bytes.Repeat([]byte{0x04}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  10,
+		Value:              10,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0x05}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0x06}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0x06}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)
@@ -394,17 +416,17 @@ func TestProcessExecutionPayloadBid_CannotCoverBid(t *testing.T) {
 	state = stateIface.(*state_native.BeaconState)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xCC}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xCC}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xDD}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xDD}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  25,
+		Value:              25,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xEE}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xFF}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xFF}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)
@@ -436,17 +458,17 @@ func TestProcessExecutionPayloadBid_InvalidSignature(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinDepositAmount+1000, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xCC}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xCC}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xDD}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xDD}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  10,
+		Value:              10,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xEE}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xFF}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xFF}, 20),
 	}
 	// Use an invalid signature.
 	invalidSig := [96]byte{1}
@@ -463,6 +485,42 @@ func TestProcessExecutionPayloadBid_InvalidSignature(t *testing.T) {
 	require.ErrorContains(t, "bid signature validation failed", err)
 }
 
+func TestProcessExecutionPayloadBid_TooManyBlobCommitments(t *testing.T) {
+	slot := primitives.Slot(9)
+	proposerIdx := primitives.ValidatorIndex(0)
+	builderIdx := params.BeaconConfig().BuilderIndexSelfBuild
+	randao := [32]byte(bytes.Repeat([]byte{0xAA}, 32))
+	latestHash := [32]byte(bytes.Repeat([]byte{0xBB}, 32))
+	pubKey := [48]byte{}
+	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinActivationBalance+1000, randao, latestHash, pubKey)
+
+	bid := &ethpb.ExecutionPayloadBid{
+		ParentBlockHash:    latestHash[:],
+		ParentBlockRoot:    bytes.Repeat([]byte{0xCC}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xDD}, 32),
+		PrevRandao:         randao[:],
+		BuilderIndex:       builderIdx,
+		Slot:               slot,
+		BlobKzgCommitments: tooManyBlobCommitmentsForSlot(slot),
+		FeeRecipient:       bytes.Repeat([]byte{0xFF}, 20),
+	}
+	signed := &ethpb.SignedExecutionPayloadBid{
+		Message:   bid,
+		Signature: common.InfiniteSignature[:],
+	}
+
+	block := stubBlock{
+		slot:       slot,
+		proposer:   proposerIdx,
+		parentRoot: bytesutil.ToBytes32(bid.ParentBlockRoot),
+		body:       stubBlockBody{signedBid: signed},
+		v:          version.Gloas,
+	}
+
+	err := ProcessExecutionPayloadBid(state, block)
+	require.ErrorContains(t, "blob KZG commitments over max", err)
+}
+
 func TestProcessExecutionPayloadBid_SlotMismatch(t *testing.T) {
 	slot := primitives.Slot(10)
 	builderIdx := primitives.BuilderIndex(1)
@@ -478,17 +536,17 @@ func TestProcessExecutionPayloadBid_SlotMismatch(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinDepositAmount+1000, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0xAA}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0xAA}, 32),
-		BlockHash:              bytes.Repeat([]byte{0xBB}, 32),
+		BlockHash:          bytes.Repeat([]byte{0xBB}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot + 1, // mismatch
+		Slot:               slot + 1, // mismatch
-		Value:                  1,
+		Value:              1,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0xCC}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0xDD}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0xDD}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)
@@ -520,17 +578,17 @@ func TestProcessExecutionPayloadBid_ParentHashMismatch(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinDepositAmount+1000, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        bytes.Repeat([]byte{0x11}, 32), // mismatch
+		ParentBlockHash:    bytes.Repeat([]byte{0x11}, 32), // mismatch
-		ParentBlockRoot:        bytes.Repeat([]byte{0x22}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0x22}, 32),
-		BlockHash:              bytes.Repeat([]byte{0x33}, 32),
+		BlockHash:          bytes.Repeat([]byte{0x33}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  1,
+		Value:              1,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0x44}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0x55}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0x55}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)
@@ -563,17 +621,17 @@ func TestProcessExecutionPayloadBid_ParentRootMismatch(t *testing.T) {
 
 	parentRoot := bytes.Repeat([]byte{0x22}, 32)
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        parentRoot,
+		ParentBlockRoot:    parentRoot,
-		BlockHash:              bytes.Repeat([]byte{0x33}, 32),
+		BlockHash:          bytes.Repeat([]byte{0x33}, 32),
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  1,
+		Value:              1,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0x44}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0x55}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0x55}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)
@@ -605,17 +663,17 @@ func TestProcessExecutionPayloadBid_PrevRandaoMismatch(t *testing.T) {
 	state := buildGloasState(t, slot, proposerIdx, builderIdx, params.BeaconConfig().MinDepositAmount+1000, randao, latestHash, pubKey)
 
 	bid := &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        latestHash[:],
+		ParentBlockHash:    latestHash[:],
-		ParentBlockRoot:        bytes.Repeat([]byte{0x22}, 32),
+		ParentBlockRoot:    bytes.Repeat([]byte{0x22}, 32),
-		BlockHash:              bytes.Repeat([]byte{0x33}, 32),
+		BlockHash:          bytes.Repeat([]byte{0x33}, 32),
-		PrevRandao:             bytes.Repeat([]byte{0x01}, 32), // mismatch
+		PrevRandao:         bytes.Repeat([]byte{0x01}, 32), // mismatch
-		GasLimit:               1,
+		GasLimit:           1,
-		BuilderIndex:           builderIdx,
+		BuilderIndex:       builderIdx,
-		Slot:                   slot,
+		Slot:               slot,
-		Value:                  1,
+		Value:              1,
-		ExecutionPayment:       0,
+		ExecutionPayment:   0,
-		BlobKzgCommitmentsRoot: bytes.Repeat([]byte{0x44}, 32),
+		BlobKzgCommitments: blobCommitmentsForSlot(slot, 1),
-		FeeRecipient:           bytes.Repeat([]byte{0x55}, 20),
+		FeeRecipient:       bytes.Repeat([]byte{0x55}, 20),
 	}
 	genesis := bytesutil.ToBytes32(state.GenesisValidatorsRoot())
 	sig := signBid(t, sk, bid, state.Fork(), genesis)

beacon-chain/core/gloas/payload_attestation.go

@@ -24,14 +24,21 @@ import (
 )
 
 // 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
+//	<spec fn="process_payload_attestation" fork="gloas" hash="f46bf0b0">
-//	assert data.beacon_block_root == state.latest_block_header.parent_root
+//	def process_payload_attestation(
-//	assert data.slot + 1 == state.slot
+//	    state: BeaconState, payload_attestation: PayloadAttestation
-//	indexed = get_indexed_payload_attestation(state, data.slot, payload_attestation)
+//	) -> None:
-//	assert is_valid_indexed_payload_attestation(state, indexed)
+//	    data = payload_attestation.data
+//
+//	    # Check that the attestation is for the parent beacon block
+//	    assert data.beacon_block_root == state.latest_block_header.parent_root
+//	    # Check that the attestation is for the previous slot
+//	    assert data.slot + 1 == state.slot
+//	    # Verify signature
+//	    indexed_payload_attestation = get_indexed_payload_attestation(state, payload_attestation)
+//	    assert is_valid_indexed_payload_attestation(state, indexed_payload_attestation)
+//	</spec>
 func ProcessPayloadAttestations(ctx context.Context, st state.BeaconState, body interfaces.ReadOnlyBeaconBlockBody) error {
 	atts, err := body.PayloadAttestations()
 	if err != nil {
@@ -90,17 +97,24 @@ func indexedPayloadAttestation(ctx context.Context, st state.ReadOnlyBeaconState
 }
 
 // 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)
+//	<spec fn="get_ptc" fork="gloas" hash="ae15f761">
-//	seed = hash(get_seed(state, epoch, DOMAIN_PTC_ATTESTER) + uint_to_bytes(slot))
+//	def get_ptc(state: BeaconState, slot: Slot) -> Vector[ValidatorIndex, PTC_SIZE]:
-//	indices = []
+//	    """
-//	committees_per_slot = get_committee_count_per_slot(state, epoch)
+//	    Get the payload timeliness committee for the given ``slot``.
-//	for i in range(committees_per_slot):
+//	    """
-//	  committee = get_beacon_committee(state, slot, CommitteeIndex(i))
+//	    epoch = compute_epoch_at_slot(slot)
-//	  indices.extend(committee)
+//	    seed = hash(get_seed(state, epoch, DOMAIN_PTC_ATTESTER) + uint_to_bytes(slot))
-//	return compute_balance_weighted_selection(state, indices, seed, size=PTC_SIZE, shuffle_indices=False)
+//	    indices: List[ValidatorIndex] = []
+//	    # Concatenate all committees for this slot in order
+//	    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
+//	    )
+//	</spec>
 func payloadCommittee(ctx context.Context, st state.ReadOnlyBeaconState, slot primitives.Slot) ([]primitives.ValidatorIndex, error) {
 	epoch := slots.ToEpoch(slot)
 	seed, err := ptcSeed(st, epoch, slot)
@@ -152,17 +166,35 @@ func ptcSeed(st state.ReadOnlyBeaconState, epoch primitives.Epoch, slot primitiv
 }
 
 // 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
+//	<spec fn="compute_balance_weighted_selection" fork="gloas" hash="2c9f1c23">
-//	while len(selected) < size:
+//	def compute_balance_weighted_selection(
-//	  next = i % total
+//	    state: BeaconState,
-//	  if shuffle_indices: next = compute_shuffled_index(next, total, seed)
+//	    indices: Sequence[ValidatorIndex],
-//	  if compute_balance_weighted_acceptance(state, indices[next], seed, i):
+//	    seed: Bytes32,
-//	    selected.append(indices[next])
+//	    size: uint64,
-//	  i += 1
+//	    shuffle_indices: bool,
+//	) -> Sequence[ValidatorIndex]:
+//	    """
+//	    Return ``size`` indices sampled by effective balance, using ``indices``
+//	    as candidates. If ``shuffle_indices`` is ``True``, candidate indices
+//	    are themselves sampled from ``indices`` by shuffling it, otherwise
+//	    ``indices`` is traversed in order.
+//	    """
+//	    total = uint64(len(indices))
+//	    assert total > 0
+//	    selected: List[ValidatorIndex] = []
+//	    i = uint64(0)
+//	    while len(selected) < size:
+//	        next_index = i % total
+//	        if shuffle_indices:
+//	            next_index = compute_shuffled_index(next_index, total, seed)
+//	        candidate_index = indices[next_index]
+//	        if compute_balance_weighted_acceptance(state, candidate_index, seed, i):
+//	            selected.append(candidate_index)
+//	        i += 1
+//	    return selected
+//	</spec>
 func selectByBalanceFill(
 	ctx context.Context,
 	st state.ReadOnlyBeaconState,
@@ -199,15 +231,22 @@ func selectByBalanceFill(
 }
 
 // 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
+//	<spec fn="compute_balance_weighted_acceptance" fork="gloas" hash="9954dcd0">
-//	random_bytes = hash(seed + uint_to_bytes(i // 16))
+//	def compute_balance_weighted_acceptance(
-//	offset = i % 16 * 2
+//	    state: BeaconState, index: ValidatorIndex, seed: Bytes32, i: uint64
-//	random_value = bytes_to_uint64(random_bytes[offset:offset+2])
+//	) -> bool:
-//	effective_balance = state.validators[index].effective_balance
+//	    """
-//	return effective_balance * MAX_RANDOM_VALUE >= MAX_EFFECTIVE_BALANCE_ELECTRA * random_value
+//	    Return whether to accept the selection of the validator ``index``, with probability
+//	    proportional to its ``effective_balance``, and randomness given by ``seed`` and ``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
+//	</spec>
 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)
@@ -224,16 +263,26 @@ func acceptByBalance(st state.ReadOnlyBeaconState, idx primitives.ValidatorIndex
 }
 
 // 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
+//	<spec fn="is_valid_indexed_payload_attestation" fork="gloas" hash="d76e0f89">
-//	return len(indices) > 0 and indices == sorted(indices) and
+//	def is_valid_indexed_payload_attestation(
-//	  bls.FastAggregateVerify(
+//	    state: BeaconState, attestation: IndexedPayloadAttestation
-//	    [state.validators[i].pubkey for i in indices],
+//	) -> bool:
-//	    compute_signing_root(indexed_payload_attestation.data, get_domain(state, DOMAIN_PTC_ATTESTER, compute_epoch_at_slot(attestation.data.slot)),
+//	    """
-//	    indexed_payload_attestation.signature,
+//	    Check if ``attestation`` is non-empty, has sorted indices, and has
-//	  )
+//	    a valid aggregate signature.
+//	    """
+//	    # Verify indices are non-empty and sorted
+//	    indices = attestation.attesting_indices
+//	    if len(indices) == 0 or not indices == sorted(indices):
+//	        return False
+//
+//	    # Verify aggregate signature
+//	    pubkeys = [state.validators[i].pubkey for i in indices]
+//	    domain = get_domain(state, DOMAIN_PTC_ATTESTER, compute_epoch_at_slot(attestation.data.slot))
+//	    signing_root = compute_signing_root(attestation.data, domain)
+//	    return bls.FastAggregateVerify(pubkeys, signing_root, attestation.signature)
+//	</spec>
 func validIndexedPayloadAttestation(st state.ReadOnlyBeaconState, att *consensus_types.IndexedPayloadAttestation) error {
 	indices := att.AttestingIndices
 	if len(indices) == 0 || !slices.IsSorted(indices) {

beacon-chain/core/gloas/pending_payment.go

@@ -10,17 +10,21 @@ import (
 )
 
 // ProcessBuilderPendingPayments processes the builder pending payments from the previous epoch.
-// Spec v1.7.0-alpha.0 (pseudocode):
-// def process_builder_pending_payments(state: BeaconState) -> None:
 //
-//	quorum = get_builder_payment_quorum_threshold(state)
+//	<spec fn="process_builder_pending_payments" fork="gloas" hash="10da48dd">
-//	for payment in state.builder_pending_payments[:SLOTS_PER_EPOCH]:
+//	def process_builder_pending_payments(state: BeaconState) -> None:
-//	    if payment.weight >= quorum:
+//	    """
-//	        state.builder_pending_withdrawals.append(payment.withdrawal)
+//	    Processes the builder pending payments from the previous epoch.
+//	    """
+//	    quorum = get_builder_payment_quorum_threshold(state)
+//	    for payment in state.builder_pending_payments[:SLOTS_PER_EPOCH]:
+//	        if payment.weight >= quorum:
+//	            state.builder_pending_withdrawals.append(payment.withdrawal)
 //
-//	old_payments = state.builder_pending_payments[SLOTS_PER_EPOCH:]
+//	    old_payments = state.builder_pending_payments[SLOTS_PER_EPOCH:]
-//	new_payments = [BuilderPendingPayment() for _ in range(SLOTS_PER_EPOCH)]
+//	    new_payments = [BuilderPendingPayment() for _ in range(SLOTS_PER_EPOCH)]
-//	state.builder_pending_payments = old_payments + new_payments
+//	    state.builder_pending_payments = old_payments + new_payments
+//	</spec>
 func ProcessBuilderPendingPayments(state state.BeaconState) error {
 	quorum, err := builderQuorumThreshold(state)
 	if err != nil {
@@ -53,12 +57,16 @@ func ProcessBuilderPendingPayments(state state.BeaconState) error {
 }
 
 // builderQuorumThreshold calculates the quorum threshold for builder payments.
-// Spec v1.7.0-alpha.0 (pseudocode):
-// def get_builder_payment_quorum_threshold(state: BeaconState) -> uint64:
 //
-//	per_slot_balance = get_total_active_balance(state) // SLOTS_PER_EPOCH
+//	<spec fn="get_builder_payment_quorum_threshold" fork="gloas" hash="a64b7ffb">
-//	quorum = per_slot_balance * BUILDER_PAYMENT_THRESHOLD_NUMERATOR
+//	def get_builder_payment_quorum_threshold(state: BeaconState) -> uint64:
-//	return uint64(quorum // BUILDER_PAYMENT_THRESHOLD_DENOMINATOR)
+//	    """
+//	    Calculate the quorum threshold for builder payments.
+//	    """
+//	    per_slot_balance = get_total_active_balance(state) // SLOTS_PER_EPOCH
+//	    quorum = per_slot_balance * BUILDER_PAYMENT_THRESHOLD_NUMERATOR
+//	    return uint64(quorum // BUILDER_PAYMENT_THRESHOLD_DENOMINATOR)
+//	</spec>
 func builderQuorumThreshold(state state.ReadOnlyBeaconState) (primitives.Gwei, error) {
 	activeBalance, err := helpers.TotalActiveBalance(state)
 	if err != nil {

beacon-chain/core/gloas/proposer_slashing.go

@@ -11,16 +11,20 @@ import (
 )
 
 // RemoveBuilderPendingPayment removes the pending builder payment for the proposal slot.
-// Spec v1.7.0 (pseudocode):
 //
+//	<spec fn="process_proposer_slashing" fork="gloas" lines="22-32" hash="4da721ef">
+//	# [New in Gloas:EIP7732]
+//	# Remove the BuilderPendingPayment corresponding to
+//	# this proposal if it is still in the 2-epoch window.
 //	slot = header_1.slot
 //	proposal_epoch = compute_epoch_at_slot(slot)
 //	if proposal_epoch == get_current_epoch(state):
-//	  payment_index = SLOTS_PER_EPOCH + slot % SLOTS_PER_EPOCH
+//	    payment_index = SLOTS_PER_EPOCH + slot % SLOTS_PER_EPOCH
-//	  state.builder_pending_payments[payment_index] = BuilderPendingPayment()
+//	    state.builder_pending_payments[payment_index] = BuilderPendingPayment()
 //	elif proposal_epoch == get_previous_epoch(state):
-//	  payment_index = slot % SLOTS_PER_EPOCH
+//	    payment_index = slot % SLOTS_PER_EPOCH
-//	  state.builder_pending_payments[payment_index] = BuilderPendingPayment()
+//	    state.builder_pending_payments[payment_index] = BuilderPendingPayment()
+//	</spec>
 func RemoveBuilderPendingPayment(st state.BeaconState, header *eth.BeaconBlockHeader) error {
 	proposalEpoch := slots.ToEpoch(header.Slot)
 	currentEpoch := time.CurrentEpoch(st)

beacon-chain/core/peerdas/BUILD.bazel

@@ -33,7 +33,6 @@ go_library(
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_prometheus_client_golang//prometheus:go_default_library",
         "@com_github_prometheus_client_golang//prometheus/promauto:go_default_library",
-        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@org_golang_x_sync//errgroup:go_default_library",
     ],
 )

beacon-chain/core/peerdas/p2p_interface.go

@@ -1,15 +1,11 @@
 package peerdas
 
 import (
-	stderrors "errors"
-	"iter"
-
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/config/params"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
 	"github.com/OffchainLabs/prysm/v7/container/trie"
-	ethpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
 	"github.com/ethereum/go-ethereum/p2p/enr"
 	"github.com/pkg/errors"
 )
@@ -20,7 +16,6 @@ var (
 	ErrIndexTooLarge               = errors.New("column index is larger than the specified columns count")
 	ErrNoKzgCommitments            = errors.New("no KZG commitments found")
 	ErrMismatchLength              = errors.New("mismatch in the length of the column, commitments or proofs")
-	ErrEmptySegment                = errors.New("empty segment in batch")
 	ErrInvalidKZGProof             = errors.New("invalid KZG proof")
 	ErrBadRootLength               = errors.New("bad root length")
 	ErrInvalidInclusionProof       = errors.New("invalid inclusion proof")
@@ -62,127 +57,62 @@ func VerifyDataColumnSidecar(sidecar blocks.RODataColumn) error {
 	return nil
 }
 
-// CellProofBundleSegment is returned when a batch fails. The caller can call
+// VerifyDataColumnsSidecarKZGProofs verifies if the KZG proofs are correct.
-// the `.Verify` method to verify just this segment.
-type CellProofBundleSegment struct {
-	indices     []uint64
-	commitments []kzg.Bytes48
-	cells       []kzg.Cell
-	proofs      []kzg.Bytes48
-}
-
-// Verify verifies this segment without batching.
-func (s CellProofBundleSegment) Verify() error {
-	if len(s.cells) == 0 {
-		return ErrEmptySegment
-	}
-	verified, err := kzg.VerifyCellKZGProofBatch(s.commitments, s.indices, s.cells, s.proofs)
-	if err != nil {
-		return stderrors.Join(err, ErrInvalidKZGProof)
-	}
-	if !verified {
-		return ErrInvalidKZGProof
-	}
-	return nil
-}
-
-func VerifyDataColumnsCellsKZGProofs(sizeHint int, cellProofsIter iter.Seq[blocks.CellProofBundle]) error {
-	// ignore the failed segment list since we are just passing in one segment.
-	_, err := BatchVerifyDataColumnsCellsKZGProofs(sizeHint, []iter.Seq[blocks.CellProofBundle]{cellProofsIter})
-	return err
-}
-
-// BatchVerifyDataColumnsCellsKZGProofs verifies if the KZG proofs are correct.
 // Note: We are slightly deviating from the specification here:
 // The specification verifies the KZG proofs for each sidecar separately,
 // while we are verifying all the KZG proofs from multiple sidecars in a batch.
 // This is done to improve performance since the internal KZG library is way more
-// efficient when verifying in batch. If the batch fails, the failed segments
+// efficient when verifying in batch.
-// are returned to the caller so that they may try segment by segment without
-// batching. On success the failed segment list is empty.
-//
 // https://github.com/ethereum/consensus-specs/blob/master/specs/fulu/p2p-interface.md#verify_data_column_sidecar_kzg_proofs
-func BatchVerifyDataColumnsCellsKZGProofs(sizeHint int, cellProofsIters []iter.Seq[blocks.CellProofBundle]) ( /* failed segment list */ []CellProofBundleSegment, error) {
+func VerifyDataColumnsSidecarKZGProofs(sidecars []blocks.RODataColumn) error {
-	commitments := make([]kzg.Bytes48, 0, sizeHint)
+	// Compute the total count.
-	indices := make([]uint64, 0, sizeHint)
+	count := 0
-	cells := make([]kzg.Cell, 0, sizeHint)
+	for _, sidecar := range sidecars {
-	proofs := make([]kzg.Bytes48, 0, sizeHint)
+		count += len(sidecar.Column)
+	}
 
-	var anySegmentEmpty bool
+	commitments := make([]kzg.Bytes48, 0, count)
-	var segments []CellProofBundleSegment
+	indices := make([]uint64, 0, count)
-	for _, cellProofsIter := range cellProofsIters {
+	cells := make([]kzg.Cell, 0, count)
-		startIdx := len(cells)
+	proofs := make([]kzg.Bytes48, 0, count)
-		for bundle := range cellProofsIter {
+
+	for _, sidecar := range sidecars {
+		for i := range sidecar.Column {
 			var (
 				commitment kzg.Bytes48
 				cell       kzg.Cell
 				proof      kzg.Bytes48
 			)
 
-			if len(bundle.Commitment) != len(commitment) ||
+			commitmentBytes := sidecar.KzgCommitments[i]
-				len(bundle.Cell) != len(cell) ||
+			cellBytes := sidecar.Column[i]
-				len(bundle.Proof) != len(proof) {
+			proofBytes := sidecar.KzgProofs[i]
-				return nil, ErrMismatchLength
+
+			if len(commitmentBytes) != len(commitment) ||
+				len(cellBytes) != len(cell) ||
+				len(proofBytes) != len(proof) {
+				return ErrMismatchLength
 			}
 
-			copy(commitment[:], bundle.Commitment)
+			copy(commitment[:], commitmentBytes)
-			copy(cell[:], bundle.Cell)
+			copy(cell[:], cellBytes)
-			copy(proof[:], bundle.Proof)
+			copy(proof[:], proofBytes)
 
 			commitments = append(commitments, commitment)
-			indices = append(indices, bundle.ColumnIndex)
+			indices = append(indices, sidecar.Index)
 			cells = append(cells, cell)
 			proofs = append(proofs, proof)
 		}
-		if len(cells[startIdx:]) == 0 {
-			anySegmentEmpty = true
-		}
-		segments = append(segments, CellProofBundleSegment{
-			indices:     indices[startIdx:],
-			commitments: commitments[startIdx:],
-			cells:       cells[startIdx:],
-			proofs:      proofs[startIdx:],
-		})
-	}
-
-	if anySegmentEmpty {
-		return segments, ErrEmptySegment
 	}
 
 	// Batch verify that the cells match the corresponding commitments and proofs.
 	verified, err := kzg.VerifyCellKZGProofBatch(commitments, indices, cells, proofs)
 	if err != nil {
-		return segments, stderrors.Join(err, ErrInvalidKZGProof)
+		return errors.Wrap(err, "verify cell KZG proof batch")
 	}
 
 	if !verified {
-		return segments, ErrInvalidKZGProof
+		return ErrInvalidKZGProof
-	}
-
-	return nil, nil
-}
-
-// verifyKzgCommitmentsInclusionProof is the shared implementation for inclusion proof verification.
-func verifyKzgCommitmentsInclusionProof(bodyRoot []byte, kzgCommitments [][]byte, inclusionProof [][]byte) error {
-	if len(bodyRoot) != fieldparams.RootLength {
-		return ErrBadRootLength
-	}
-
-	leaves := blocks.LeavesFromCommitments(kzgCommitments)
-
-	sparse, err := trie.GenerateTrieFromItems(leaves, fieldparams.LogMaxBlobCommitments)
-	if err != nil {
-		return errors.Wrap(err, "generate trie from items")
-	}
-
-	hashTreeRoot, err := sparse.HashTreeRoot()
-	if err != nil {
-		return errors.Wrap(err, "hash tree root")
-	}
-
-	verified := trie.VerifyMerkleProof(bodyRoot, hashTreeRoot[:], kzgPosition, inclusionProof)
-	if !verified {
-		return ErrInvalidInclusionProof
 	}
 
 	return nil
@@ -194,23 +124,30 @@ func VerifyDataColumnSidecarInclusionProof(sidecar blocks.RODataColumn) error {
 	if sidecar.SignedBlockHeader == nil || sidecar.SignedBlockHeader.Header == nil {
 		return ErrNilBlockHeader
 	}
-	return verifyKzgCommitmentsInclusionProof(
-		sidecar.SignedBlockHeader.Header.BodyRoot,
-		sidecar.KzgCommitments,
-		sidecar.KzgCommitmentsInclusionProof,
-	)
-}
 
-// VerifyPartialDataColumnHeaderInclusionProof verifies if the KZG commitments are included in the beacon block.
+	root := sidecar.SignedBlockHeader.Header.BodyRoot
-func VerifyPartialDataColumnHeaderInclusionProof(header *ethpb.PartialDataColumnHeader) error {
+	if len(root) != fieldparams.RootLength {
-	if header.SignedBlockHeader == nil || header.SignedBlockHeader.Header == nil {
+		return ErrBadRootLength
-		return ErrNilBlockHeader
 	}
-	return verifyKzgCommitmentsInclusionProof(
+
-		header.SignedBlockHeader.Header.BodyRoot,
+	leaves := blocks.LeavesFromCommitments(sidecar.KzgCommitments)
-		header.KzgCommitments,
+
-		header.KzgCommitmentsInclusionProof,
+	sparse, err := trie.GenerateTrieFromItems(leaves, fieldparams.LogMaxBlobCommitments)
-	)
+	if err != nil {
+		return errors.Wrap(err, "generate trie from items")
+	}
+
+	hashTreeRoot, err := sparse.HashTreeRoot()
+	if err != nil {
+		return errors.Wrap(err, "hash tree root")
+	}
+
+	verified := trie.VerifyMerkleProof(root, hashTreeRoot[:], kzgPosition, sidecar.KzgCommitmentsInclusionProof)
+	if !verified {
+		return ErrInvalidInclusionProof
+	}
+
+	return nil
 }
 
 // ComputeSubnetForDataColumnSidecar computes the subnet for a data column sidecar.

beacon-chain/core/peerdas/p2p_interface_test.go

@@ -3,7 +3,6 @@ package peerdas_test
 import (
 	"crypto/rand"
 	"fmt"
-	"iter"
 	"testing"
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
@@ -73,7 +72,7 @@ func TestVerifyDataColumnSidecarKZGProofs(t *testing.T) {
 		sidecars := generateRandomSidecars(t, seed, blobCount)
 		sidecars[0].Column[0] = sidecars[0].Column[0][:len(sidecars[0].Column[0])-1] // Remove one byte to create size mismatch
 
-		err := peerdas.VerifyDataColumnsCellsKZGProofs(0, blocks.RODataColumnsToCellProofBundles(sidecars))
+		err := peerdas.VerifyDataColumnsSidecarKZGProofs(sidecars)
 		require.ErrorIs(t, err, peerdas.ErrMismatchLength)
 	})
 
@@ -81,15 +80,14 @@ func TestVerifyDataColumnSidecarKZGProofs(t *testing.T) {
 		sidecars := generateRandomSidecars(t, seed, blobCount)
 		sidecars[0].Column[0][0]++ // It is OK to overflow
 
-		err := peerdas.VerifyDataColumnsCellsKZGProofs(0, blocks.RODataColumnsToCellProofBundles(sidecars))
+		err := peerdas.VerifyDataColumnsSidecarKZGProofs(sidecars)
 		require.ErrorIs(t, err, peerdas.ErrInvalidKZGProof)
 	})
 
 	t.Run("nominal", func(t *testing.T) {
 		sidecars := generateRandomSidecars(t, seed, blobCount)
-		failedSegments, err := peerdas.BatchVerifyDataColumnsCellsKZGProofs(blobCount, []iter.Seq[blocks.CellProofBundle]{blocks.RODataColumnsToCellProofBundles(sidecars)})
+		err := peerdas.VerifyDataColumnsSidecarKZGProofs(sidecars)
 		require.NoError(t, err)
-		require.Equal(t, 0, len(failedSegments))
 	})
 }
 
@@ -275,7 +273,7 @@ func BenchmarkVerifyDataColumnSidecarKZGProofs_SameCommitments_NoBatch(b *testin
 		for _, sidecar := range sidecars {
 			sidecars := []blocks.RODataColumn{sidecar}
 			b.StartTimer()
-			err := peerdas.VerifyDataColumnsCellsKZGProofs(0, blocks.RODataColumnsToCellProofBundles(sidecars))
+			err := peerdas.VerifyDataColumnsSidecarKZGProofs(sidecars)
 			b.StopTimer()
 			require.NoError(b, err)
 		}
@@ -310,7 +308,7 @@ func BenchmarkVerifyDataColumnSidecarKZGProofs_DiffCommitments_Batch(b *testing.
 				}
 
 				b.StartTimer()
-				err := peerdas.VerifyDataColumnsCellsKZGProofs(0, blocks.RODataColumnsToCellProofBundles(allSidecars))
+				err := peerdas.VerifyDataColumnsSidecarKZGProofs(allSidecars)
 				b.StopTimer()
 				require.NoError(b, err)
 			}
@@ -343,7 +341,7 @@ func BenchmarkVerifyDataColumnSidecarKZGProofs_DiffCommitments_Batch4(b *testing
 
 		for _, sidecars := range allSidecars {
 			b.StartTimer()
-			err := peerdas.VerifyDataColumnsCellsKZGProofs(len(allSidecars), blocks.RODataColumnsToCellProofBundles(sidecars))
+			err := peerdas.VerifyDataColumnsSidecarKZGProofs(sidecars)
 			b.StopTimer()
 			require.NoError(b, err)
 		}

beacon-chain/core/peerdas/reconstruction.go

@@ -5,7 +5,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/OffchainLabs/go-bitfield"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/config/params"
@@ -340,8 +339,7 @@ func ComputeCellsAndProofsFromFlat(blobs [][]byte, cellProofs [][]byte) ([][]kzg
 }
 
 // ComputeCellsAndProofsFromStructured computes the cells and proofs from blobs and cell proofs.
-// commitmentCount is required to return the correct sized bitlist even if we see a nil slice of blobsAndProofs.
+func ComputeCellsAndProofsFromStructured(blobsAndProofs []*pb.BlobAndProofV2) ([][]kzg.Cell, [][]kzg.Proof, error) {
-func ComputeCellsAndProofsFromStructured(commitmentCount uint64, blobsAndProofs []*pb.BlobAndProofV2) (bitfield.Bitlist /* parts included */, [][]kzg.Cell, [][]kzg.Proof, error) {
 	start := time.Now()
 	defer func() {
 		cellsAndProofsFromStructuredComputationTime.Observe(float64(time.Since(start).Milliseconds()))
@@ -349,24 +347,14 @@ func ComputeCellsAndProofsFromStructured(commitmentCount uint64, blobsAndProofs
 
 	var wg errgroup.Group
 
-	var blobsPresent int
+	cellsPerBlob := make([][]kzg.Cell, len(blobsAndProofs))
-	for _, blobAndProof := range blobsAndProofs {
+	proofsPerBlob := make([][]kzg.Proof, len(blobsAndProofs))
-		if blobAndProof != nil {
-			blobsPresent++
-		}
-	}
-	cellsPerBlob := make([][]kzg.Cell, blobsPresent)
-	proofsPerBlob := make([][]kzg.Proof, blobsPresent)
-	included := bitfield.NewBitlist(commitmentCount)
 
-	var j int
 	for i, blobAndProof := range blobsAndProofs {
 		if blobAndProof == nil {
-			continue
+			return nil, nil, ErrNilBlobAndProof
 		}
-		included.SetBitAt(uint64(i), true)
 
-		compactIndex := j
 		wg.Go(func() error {
 			var kzgBlob kzg.Blob
 			if copy(kzgBlob[:], blobAndProof.Blob) != len(kzgBlob) {
@@ -393,18 +381,17 @@ func ComputeCellsAndProofsFromStructured(commitmentCount uint64, blobsAndProofs
 				kzgProofs = append(kzgProofs, kzgProof)
 			}
 
-			cellsPerBlob[compactIndex] = cells
+			cellsPerBlob[i] = cells
-			proofsPerBlob[compactIndex] = kzgProofs
+			proofsPerBlob[i] = kzgProofs
 			return nil
 		})
-		j++
 	}
 
 	if err := wg.Wait(); err != nil {
-		return nil, nil, nil, err
+		return nil, nil, err
 	}
 
-	return included, cellsPerBlob, proofsPerBlob, nil
+	return cellsPerBlob, proofsPerBlob, nil
 }
 
 // ReconstructBlobs reconstructs blobs from data column sidecars without computing KZG proofs or creating sidecars.

beacon-chain/core/peerdas/reconstruction_test.go

@@ -479,9 +479,8 @@ func TestComputeCellsAndProofsFromFlat(t *testing.T) {
 
 func TestComputeCellsAndProofsFromStructured(t *testing.T) {
 	t.Run("nil blob and proof", func(t *testing.T) {
-		included, _, _, err := peerdas.ComputeCellsAndProofsFromStructured(0, []*pb.BlobAndProofV2{nil})
+		_, _, err := peerdas.ComputeCellsAndProofsFromStructured([]*pb.BlobAndProofV2{nil})
-		require.NoError(t, err)
+		require.ErrorIs(t, err, peerdas.ErrNilBlobAndProof)
-		require.Equal(t, uint64(0), included.Count())
 	})
 
 	t.Run("nominal", func(t *testing.T) {
@@ -534,8 +533,7 @@ func TestComputeCellsAndProofsFromStructured(t *testing.T) {
 		require.NoError(t, err)
 
 		// Test ComputeCellsAndProofs
-		included, actualCellsPerBlob, actualProofsPerBlob, err := peerdas.ComputeCellsAndProofsFromStructured(uint64(len(blobsAndProofs)), blobsAndProofs)
+		actualCellsPerBlob, actualProofsPerBlob, err := peerdas.ComputeCellsAndProofsFromStructured(blobsAndProofs)
-		require.Equal(t, included.Count(), uint64(len(actualCellsPerBlob)))
 		require.NoError(t, err)
 		require.Equal(t, blobCount, len(actualCellsPerBlob))
 

beacon-chain/core/peerdas/validator.go

@@ -3,7 +3,6 @@ package peerdas
 import (
 	"time"
 
-	"github.com/OffchainLabs/go-bitfield"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
 	beaconState "github.com/OffchainLabs/prysm/v7/beacon-chain/state"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
@@ -24,13 +23,11 @@ var (
 var (
 	_ ConstructionPopulator = (*BlockReconstructionSource)(nil)
 	_ ConstructionPopulator = (*SidecarReconstructionSource)(nil)
-	_ ConstructionPopulator = (*PartialDataColumnHeaderReconstructionSource)(nil)
 )
 
 const (
-	BlockType                   = "BeaconBlock"
+	BlockType   = "BeaconBlock"
-	SidecarType                 = "DataColumnSidecar"
+	SidecarType = "DataColumnSidecar"
-	PartialDataColumnHeaderType = "PartialDataColumnHeader"
 )
 
 type (
@@ -57,10 +54,6 @@ type (
 		blocks.VerifiedRODataColumn
 	}
 
-	PartialDataColumnHeaderReconstructionSource struct {
-		*ethpb.PartialDataColumnHeader
-	}
-
 	blockInfo struct {
 		signedBlockHeader *ethpb.SignedBeaconBlockHeader
 		kzgCommitments    [][]byte
@@ -78,11 +71,6 @@ func PopulateFromSidecar(sidecar blocks.VerifiedRODataColumn) *SidecarReconstruc
 	return &SidecarReconstructionSource{VerifiedRODataColumn: sidecar}
 }
 
-// PopulateFromPartialHeader creates a PartialDataColumnHeaderReconstructionSource from a partial header
-func PopulateFromPartialHeader(header *ethpb.PartialDataColumnHeader) *PartialDataColumnHeaderReconstructionSource {
-	return &PartialDataColumnHeaderReconstructionSource{PartialDataColumnHeader: header}
-}
-
 // ValidatorsCustodyRequirement returns the number of custody groups regarding the validator indices attached to the beacon node.
 // https://github.com/ethereum/consensus-specs/blob/master/specs/fulu/validator.md#validator-custody
 func ValidatorsCustodyRequirement(state beaconState.ReadOnlyBeaconState, validatorsIndex map[primitives.ValidatorIndex]bool) (uint64, error) {
@@ -155,40 +143,6 @@ func DataColumnSidecars(cellsPerBlob [][]kzg.Cell, proofsPerBlob [][]kzg.Proof,
 	return roSidecars, nil
 }
 
-func PartialColumns(included bitfield.Bitlist, cellsPerBlob [][]kzg.Cell, proofsPerBlob [][]kzg.Proof, src ConstructionPopulator) ([]blocks.PartialDataColumn, error) {
-	start := time.Now()
-	const numberOfColumns = uint64(fieldparams.NumberOfColumns)
-	cells, proofs, err := rotateRowsToCols(cellsPerBlob, proofsPerBlob, numberOfColumns)
-	if err != nil {
-		return nil, errors.Wrap(err, "rotate cells and proofs")
-	}
-	info, err := src.extract()
-	if err != nil {
-		return nil, errors.Wrap(err, "extract block info")
-	}
-
-	dataColumns := make([]blocks.PartialDataColumn, 0, numberOfColumns)
-	for idx := range numberOfColumns {
-		dc, err := blocks.NewPartialDataColumn(info.signedBlockHeader, idx, info.kzgCommitments, info.kzgInclusionProof)
-		if err != nil {
-			return nil, errors.Wrap(err, "new ro data column")
-		}
-
-		for i := range len(info.kzgCommitments) {
-			if !included.BitAt(uint64(i)) {
-				continue
-			}
-			dc.ExtendFromVerfifiedCell(uint64(i), cells[idx][0], proofs[idx][0])
-			cells[idx] = cells[idx][1:]
-			proofs[idx] = proofs[idx][1:]
-		}
-		dataColumns = append(dataColumns, dc)
-	}
-
-	dataColumnComputationTime.Observe(float64(time.Since(start).Milliseconds()))
-	return dataColumns, nil
-}
-
 // Slot returns the slot of the source
 func (s *BlockReconstructionSource) Slot() primitives.Slot {
 	return s.Block().Slot()
@@ -300,43 +254,3 @@ func (s *SidecarReconstructionSource) extract() (*blockInfo, error) {
 
 	return info, nil
 }
-
-// Slot returns the slot from the partial data column header
-func (p *PartialDataColumnHeaderReconstructionSource) Slot() primitives.Slot {
-	return p.SignedBlockHeader.Header.Slot
-}
-
-// Root returns the block root computed from the header
-func (p *PartialDataColumnHeaderReconstructionSource) Root() [fieldparams.RootLength]byte {
-	root, err := p.SignedBlockHeader.Header.HashTreeRoot()
-	if err != nil {
-		return [fieldparams.RootLength]byte{}
-	}
-	return root
-}
-
-// ProposerIndex returns the proposer index from the header
-func (p *PartialDataColumnHeaderReconstructionSource) ProposerIndex() primitives.ValidatorIndex {
-	return p.SignedBlockHeader.Header.ProposerIndex
-}
-
-// Commitments returns the KZG commitments from the header
-func (p *PartialDataColumnHeaderReconstructionSource) Commitments() ([][]byte, error) {
-	return p.KzgCommitments, nil
-}
-
-// Type returns the type of the source
-func (p *PartialDataColumnHeaderReconstructionSource) Type() string {
-	return PartialDataColumnHeaderType
-}
-
-// extract extracts the block information from the partial header
-func (p *PartialDataColumnHeaderReconstructionSource) extract() (*blockInfo, error) {
-	info := &blockInfo{
-		signedBlockHeader: p.SignedBlockHeader,
-		kzgCommitments:    p.KzgCommitments,
-		kzgInclusionProof: p.KzgCommitmentsInclusionProof,
-	}
-
-	return info, nil
-}

beacon-chain/core/peerdas/validator_test.go

@@ -267,31 +267,4 @@ func TestReconstructionSource(t *testing.T) {
 
 		require.Equal(t, peerdas.SidecarType, src.Type())
 	})
-
-	t.Run("from partial header", func(t *testing.T) {
-		referenceSidecar := sidecars[0]
-		partialHeader := &ethpb.PartialDataColumnHeader{
-			SignedBlockHeader:            referenceSidecar.SignedBlockHeader,
-			KzgCommitments:               referenceSidecar.KzgCommitments,
-			KzgCommitmentsInclusionProof: referenceSidecar.KzgCommitmentsInclusionProof,
-		}
-
-		src := peerdas.PopulateFromPartialHeader(partialHeader)
-		require.Equal(t, referenceSidecar.SignedBlockHeader.Header.Slot, src.Slot())
-
-		// Compute expected root
-		expectedRoot, err := referenceSidecar.SignedBlockHeader.Header.HashTreeRoot()
-		require.NoError(t, err)
-		require.Equal(t, expectedRoot, src.Root())
-
-		require.Equal(t, referenceSidecar.SignedBlockHeader.Header.ProposerIndex, src.ProposerIndex())
-
-		commitments, err := src.Commitments()
-		require.NoError(t, err)
-		require.Equal(t, 2, len(commitments))
-		require.DeepEqual(t, commitment1, commitments[0])
-		require.DeepEqual(t, commitment2, commitments[1])
-
-		require.Equal(t, peerdas.PartialDataColumnHeaderType, src.Type())
-	})
 }

beacon-chain/core/transition/transition.go

@@ -143,10 +143,11 @@ func ProcessSlot(ctx context.Context, state state.BeaconState) (state.BeaconStat
 		return nil, err
 	}
 
-	// Spec v1.6.1 (pseudocode):
+	// <spec fn="process_slot" fork="gloas" lines="11-13" hash="62b28839">
 	// # [New in Gloas:EIP7732]
 	// # Unset the next payload availability
 	// state.execution_payload_availability[(state.slot + 1) % SLOTS_PER_HISTORICAL_ROOT] = 0b0
+	// </spec>
 	if state.Version() >= version.Gloas {
 		index := uint64((state.Slot() + 1) % params.BeaconConfig().SlotsPerHistoricalRoot)
 		if err := state.UpdateExecutionPayloadAvailabilityAtIndex(index, 0x0); err != nil {

beacon-chain/core/transition/transition_gloas_test.go

@@ -78,7 +78,7 @@ func newGloasState(t *testing.T, slot primitives.Slot, availability []byte) stat
 			BlockHash:              make([]byte, 32),
 			PrevRandao:             make([]byte, 32),
 			FeeRecipient:           make([]byte, 20),
-			BlobKzgCommitmentsRoot: make([]byte, 32),
+			BlobKzgCommitments:     [][]byte{make([]byte, 48)},
 		},
 		Eth1Data: &ethpb.Eth1Data{
 			DepositRoot: make([]byte, 32),

beacon-chain/db/kv/archived_point.go

@@ -2,6 +2,7 @@ package kv
 
 import (
 	"context"
+	"slices"
 
 	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
 	"github.com/OffchainLabs/prysm/v7/encoding/bytesutil"
@@ -33,6 +34,9 @@ func (s *Store) LastArchivedRoot(ctx context.Context) [32]byte {
 	if err := s.db.View(func(tx *bolt.Tx) error {
 		bkt := tx.Bucket(stateSlotIndicesBucket)
 		_, blockRoot = bkt.Cursor().Last()
+		if len(blockRoot) > 0 {
+			blockRoot = slices.Clone(blockRoot)
+		}
 		return nil
 	}); err != nil { // This view never returns an error, but we'll handle anyway for sanity.
 		panic(err) // lint:nopanic -- View never returns an error.
@@ -51,6 +55,9 @@ func (s *Store) ArchivedPointRoot(ctx context.Context, slot primitives.Slot) [32
 	if err := s.db.View(func(tx *bolt.Tx) error {
 		bucket := tx.Bucket(stateSlotIndicesBucket)
 		blockRoot = bucket.Get(bytesutil.SlotToBytesBigEndian(slot))
+		if len(blockRoot) > 0 {
+			blockRoot = slices.Clone(blockRoot)
+		}
 		return nil
 	}); err != nil { // This view never returns an error, but we'll handle anyway for sanity.
 		panic(err) // lint:nopanic -- View never returns an error.

beacon-chain/db/kv/blocks.go

@@ -812,7 +812,10 @@ func (s *Store) FeeRecipientByValidatorID(ctx context.Context, id primitives.Val
 	var addr []byte
 	err := s.db.View(func(tx *bolt.Tx) error {
 		bkt := tx.Bucket(feeRecipientBucket)
-		addr = bkt.Get(bytesutil.Uint64ToBytesBigEndian(uint64(id)))
+		stored := bkt.Get(bytesutil.Uint64ToBytesBigEndian(uint64(id)))
+		if len(stored) > 0 {
+			addr = slices.Clone(stored)
+		}
 		// IF the fee recipient is not found in the standard fee recipient bucket, then
 		// check the registration bucket. The fee recipient may be there.
 		// This is to resolve imcompatility until we fully migrate to the registration bucket.
@@ -826,7 +829,7 @@ func (s *Store) FeeRecipientByValidatorID(ctx context.Context, id primitives.Val
 			if err := decode(ctx, enc, reg); err != nil {
 				return err
 			}
-			addr = reg.FeeRecipient
+			addr = slices.Clone(reg.FeeRecipient)
 		}
 		return nil
 	})

beacon-chain/db/kv/deposit_contract.go

@@ -3,6 +3,7 @@ package kv
 import (
 	"context"
 	"fmt"
+	"slices"
 
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing/trace"
 	"github.com/ethereum/go-ethereum/common"
@@ -17,7 +18,10 @@ func (s *Store) DepositContractAddress(ctx context.Context) ([]byte, error) {
 	var addr []byte
 	if err := s.db.View(func(tx *bolt.Tx) error {
 		chainInfo := tx.Bucket(chainMetadataBucket)
-		addr = chainInfo.Get(depositContractAddressKey)
+		stored := chainInfo.Get(depositContractAddressKey)
+		if len(stored) > 0 {
+			addr = slices.Clone(stored)
+		}
 		return nil
 	}); err != nil { // This view never returns an error, but we'll handle anyway for sanity.
 		panic(err) // lint:nopanic -- View never returns an error.

beacon-chain/db/kv/migration_state_validators.go

@@ -199,7 +199,7 @@ func performValidatorStateMigration(ctx context.Context, bar *progressbar.Progre
 func stateBucketKeys(stateBucket *bolt.Bucket) ([][]byte, error) {
 	var keys [][]byte
 	if err := stateBucket.ForEach(func(pubKey, v []byte) error {
-		keys = append(keys, pubKey)
+		keys = append(keys, bytes.Clone(pubKey))
 		return nil
 	}); err != nil {
 		return nil, err

beacon-chain/db/kv/state_diff.go

@@ -2,6 +2,7 @@ package kv
 
 import (
 	"context"
+	"slices"
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/state"
 	"github.com/OffchainLabs/prysm/v7/cmd/beacon-chain/flags"
@@ -187,20 +188,23 @@ func (s *Store) getDiff(lvl int, slot uint64) (hdiff.HdiffBytes, error) {
 			return bolt.ErrBucketNotFound
 		}
 		buf := append(key, stateSuffix...)
-		stateDiff = bucket.Get(buf)
+		rawStateDiff := bucket.Get(buf)
-		if stateDiff == nil {
+		if len(rawStateDiff) == 0 {
 			return errors.New("state diff not found")
 		}
+		stateDiff = slices.Clone(rawStateDiff)
 		buf = append(key, validatorSuffix...)
-		validatorDiff = bucket.Get(buf)
+		rawValidatorDiff := bucket.Get(buf)
-		if validatorDiff == nil {
+		if len(rawValidatorDiff) == 0 {
 			return errors.New("validator diff not found")
 		}
+		validatorDiff = slices.Clone(rawValidatorDiff)
 		buf = append(key, balancesSuffix...)
-		balancesDiff = bucket.Get(buf)
+		rawBalancesDiff := bucket.Get(buf)
-		if balancesDiff == nil {
+		if len(rawBalancesDiff) == 0 {
 			return errors.New("balances diff not found")
 		}
+		balancesDiff = slices.Clone(rawBalancesDiff)
 		return nil
 	})
 
@@ -224,10 +228,11 @@ func (s *Store) getFullSnapshot(slot uint64) (state.BeaconState, error) {
 		if bucket == nil {
 			return bolt.ErrBucketNotFound
 		}
-		enc = bucket.Get(key)
+		rawEnc := bucket.Get(key)
-		if enc == nil {
+		if rawEnc == nil {
 			return errors.New("state not found")
 		}
+		enc = slices.Clone(rawEnc)
 		return nil
 	})
 

beacon-chain/db/kv/state_summary.go

@@ -2,6 +2,7 @@ package kv
 
 import (
 	"context"
+	"slices"
 
 	"github.com/OffchainLabs/prysm/v7/encoding/bytesutil"
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing/trace"
@@ -47,7 +48,11 @@ func (s *Store) StateSummary(ctx context.Context, blockRoot [32]byte) (*ethpb.St
 	}
 	var enc []byte
 	if err := s.db.View(func(tx *bolt.Tx) error {
-		enc = tx.Bucket(stateSummaryBucket).Get(blockRoot[:])
+		rawEnc := tx.Bucket(stateSummaryBucket).Get(blockRoot[:])
+		if len(rawEnc) == 0 {
+			return nil
+		}
+		enc = slices.Clone(rawEnc)
 		return nil
 	}); err != nil {
 		return nil, err

beacon-chain/execution/BUILD.bazel

@@ -25,6 +25,7 @@ go_library(
         "//testing/spectest:__subpackages__",
     ],
     deps = [
+        "//api/server/structs:go_default_library",
         "//beacon-chain/blockchain/kzg:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/cache/depositsnapshot:go_default_library",
@@ -73,7 +74,6 @@ go_library(
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_prometheus_client_golang//prometheus:go_default_library",
         "@com_github_prometheus_client_golang//prometheus/promauto:go_default_library",
-        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
         "@io_k8s_client_go//tools/cache:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",
@@ -100,6 +100,7 @@ go_test(
     data = glob(["testdata/**"]),
     embed = [":go_default_library"],
     deps = [
+        "//api/server/structs:go_default_library",
         "//async/event:go_default_library",
         "//beacon-chain/blockchain/kzg:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",

beacon-chain/execution/engine_client.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/OffchainLabs/go-bitfield"
+	"github.com/OffchainLabs/prysm/v7/api/server/structs"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/execution/types"
@@ -59,7 +59,6 @@ var (
 	fuluEngineEndpoints = []string{
 		GetPayloadMethodV5,
 		GetBlobsV2,
-		GetBlobsV3,
 	}
 )
 
@@ -101,8 +100,8 @@ const (
 	GetBlobsV1 = "engine_getBlobsV1"
 	// GetBlobsV2 request string for JSON-RPC.
 	GetBlobsV2 = "engine_getBlobsV2"
-	// GetBlobsV3 request string for JSON-RPC.
+	// GetClientVersionV1 is the JSON-RPC method that identifies the execution client.
-	GetBlobsV3 = "engine_getBlobsV3"
+	GetClientVersionV1 = "engine_getClientVersionV1"
 	// Defines the seconds before timing out engine endpoints with non-block execution semantics.
 	defaultEngineTimeout = time.Second
 )
@@ -126,7 +125,7 @@ type Reconstructor interface {
 		ctx context.Context, blindedBlocks []interfaces.ReadOnlySignedBeaconBlock,
 	) ([]interfaces.SignedBeaconBlock, error)
 	ReconstructBlobSidecars(ctx context.Context, block interfaces.ReadOnlySignedBeaconBlock, blockRoot [fieldparams.RootLength]byte, hi func(uint64) bool) ([]blocks.VerifiedROBlob, error)
-	ConstructDataColumnSidecars(ctx context.Context, populator peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, []blocks.PartialDataColumn, error)
+	ConstructDataColumnSidecars(ctx context.Context, populator peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, error)
 }
 
 // EngineCaller defines a client that can interact with an Ethereum
@@ -139,6 +138,7 @@ type EngineCaller interface {
 	GetPayload(ctx context.Context, payloadId [8]byte, slot primitives.Slot) (*blocks.GetPayloadResponse, error)
 	ExecutionBlockByHash(ctx context.Context, hash common.Hash, withTxs bool) (*pb.ExecutionBlock, error)
 	GetTerminalBlockHash(ctx context.Context, transitionTime uint64) ([]byte, bool, error)
+	GetClientVersionV1(ctx context.Context) ([]*structs.ClientVersionV1, error)
 }
 
 var ErrEmptyBlockHash = errors.New("Block hash is empty 0x0000...")
@@ -557,19 +557,27 @@ func (s *Service) GetBlobsV2(ctx context.Context, versionedHashes []common.Hash)
 	return result, handleRPCError(err)
 }
 
-func (s *Service) GetBlobsV3(ctx context.Context, versionedHashes []common.Hash) ([]*pb.BlobAndProofV2, error) {
+func (s *Service) GetClientVersionV1(ctx context.Context) ([]*structs.ClientVersionV1, error) {
-	ctx, span := trace.StartSpan(ctx, "powchain.engine-api-client.GetBlobsV3")
+	ctx, span := trace.StartSpan(ctx, "powchain.engine-api-client.GetClientVersionV1")
 	defer span.End()
-	start := time.Now()
 
-	if !s.capabilityCache.has(GetBlobsV3) {
+	var result []*structs.ClientVersionV1
-		return nil, errors.New(fmt.Sprintf("%s is not supported", GetBlobsV3))
+	err := s.rpcClient.CallContext(
+		ctx,
+		&result,
+		GetClientVersionV1,
+		structs.ClientVersionV1{
+			Code:    "PM",
+			Name:    "Prysm",
+			Version: version.SemanticVersion(),
+			Commit:  version.GitCommit()[:8],
+		},
+	)
+
+	if len(result) == 0 {
+		return nil, errors.New("execution client returned no result")
 	}
 
-	getBlobsV3RequestsTotal.Inc()
-	result := make([]*pb.BlobAndProofV2, len(versionedHashes))
-	err := s.rpcClient.CallContext(ctx, &result, GetBlobsV3, versionedHashes)
-	getBlobsV3Latency.Observe(time.Since(start).Seconds())
 	return result, handleRPCError(err)
 }
 
@@ -683,47 +691,40 @@ func (s *Service) ReconstructBlobSidecars(ctx context.Context, block interfaces.
 	return verifiedBlobs, nil
 }
 
-func (s *Service) ConstructDataColumnSidecars(ctx context.Context, populator peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, []blocks.PartialDataColumn, error) {
+func (s *Service) ConstructDataColumnSidecars(ctx context.Context, populator peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, error) {
 	root := populator.Root()
 
 	// Fetch cells and proofs from the execution client using the KZG commitments from the sidecar.
 	commitments, err := populator.Commitments()
 	if err != nil {
-		return nil, nil, wrapWithBlockRoot(err, root, "commitments")
+		return nil, wrapWithBlockRoot(err, root, "commitments")
 	}
 
-	included, cellsPerBlob, proofsPerBlob, err := s.fetchCellsAndProofsFromExecution(ctx, commitments)
+	cellsPerBlob, proofsPerBlob, err := s.fetchCellsAndProofsFromExecution(ctx, commitments)
-	log.Info("Received cells and proofs from execution client", "included", included, "cells count", len(cellsPerBlob), "err", err)
 	if err != nil {
-		return nil, nil, wrapWithBlockRoot(err, root, "fetch cells and proofs from execution client")
+		return nil, wrapWithBlockRoot(err, root, "fetch cells and proofs from execution client")
 	}
 
-	partialColumns, err := peerdas.PartialColumns(included, cellsPerBlob, proofsPerBlob, populator)
+	// Return early if nothing is returned from the EL.
-	haveAllBlobs := included.Count() == uint64(len(commitments))
+	if len(cellsPerBlob) == 0 {
-	log.Info("Constructed partial columns", "haveAllBlobs", haveAllBlobs)
+		return nil, nil
-
-	if haveAllBlobs {
-		// Construct data column sidears from the signed block and cells and proofs.
-		roSidecars, err := peerdas.DataColumnSidecars(cellsPerBlob, proofsPerBlob, populator)
-		if err != nil {
-			return nil, nil, wrapWithBlockRoot(err, populator.Root(), "data column sidcars from column sidecar")
-		}
-
-		// Upgrade the sidecars to verified sidecars.
-		// We trust the execution layer we are connected to, so we can upgrade the sidecar into a verified one.
-		verifiedROSidecars := upgradeSidecarsToVerifiedSidecars(roSidecars)
-
-		return verifiedROSidecars, partialColumns, nil
 	}
 
+	// Construct data column sidears from the signed block and cells and proofs.
+	roSidecars, err := peerdas.DataColumnSidecars(cellsPerBlob, proofsPerBlob, populator)
 	if err != nil {
-		return nil, nil, wrapWithBlockRoot(err, populator.Root(), "partial columns from column sidecar")
+		return nil, wrapWithBlockRoot(err, populator.Root(), "data column sidcars from column sidecar")
 	}
-	return nil, partialColumns, nil
+
+	// Upgrade the sidecars to verified sidecars.
+	// We trust the execution layer we are connected to, so we can upgrade the sidecar into a verified one.
+	verifiedROSidecars := upgradeSidecarsToVerifiedSidecars(roSidecars)
+
+	return verifiedROSidecars, nil
 }
 
 // fetchCellsAndProofsFromExecution fetches cells and proofs from the execution client (using engine_getBlobsV2 execution API method)
-func (s *Service) fetchCellsAndProofsFromExecution(ctx context.Context, kzgCommitments [][]byte) (bitfield.Bitlist /* included parts */, [][]kzg.Cell, [][]kzg.Proof, error) {
+func (s *Service) fetchCellsAndProofsFromExecution(ctx context.Context, kzgCommitments [][]byte) ([][]kzg.Cell, [][]kzg.Proof, error) {
 	// Collect KZG hashes for all blobs.
 	versionedHashes := make([]common.Hash, 0, len(kzgCommitments))
 	for _, commitment := range kzgCommitments {
@@ -731,34 +732,24 @@ func (s *Service) fetchCellsAndProofsFromExecution(ctx context.Context, kzgCommi
 		versionedHashes = append(versionedHashes, versionedHash)
 	}
 
-	var blobAndProofs []*pb.BlobAndProofV2
-
 	// Fetch all blobsAndCellsProofs from the execution client.
-	var err error
+	blobAndProofV2s, err := s.GetBlobsV2(ctx, versionedHashes)
-	useV3 := s.capabilityCache.has(GetBlobsV3)
+	if err != nil {
-	if useV3 {
+		return nil, nil, errors.Wrapf(err, "get blobs V2")
-		// v3 can return a partial response. V2 is all or nothing
-		blobAndProofs, err = s.GetBlobsV3(ctx, versionedHashes)
-	} else {
-		blobAndProofs, err = s.GetBlobsV2(ctx, versionedHashes)
 	}
 
-	if err != nil {
+	// Return early if nothing is returned from the EL.
-		return nil, nil, nil, errors.Wrapf(err, "get blobs V2/3")
+	if len(blobAndProofV2s) == 0 {
+		return nil, nil, nil
 	}
 
 	// Compute cells and proofs from the blobs and cell proofs.
-	included, cellsPerBlob, proofsPerBlob, err := peerdas.ComputeCellsAndProofsFromStructured(uint64(len(kzgCommitments)), blobAndProofs)
+	cellsPerBlob, proofsPerBlob, err := peerdas.ComputeCellsAndProofsFromStructured(blobAndProofV2s)
 	if err != nil {
-		return nil, nil, nil, errors.Wrap(err, "compute cells and proofs")
+		return nil, nil, errors.Wrap(err, "compute cells and proofs")
-	}
-	if included.Count() == uint64(len(kzgCommitments)) {
-		getBlobsV3CompleteResponsesTotal.Inc()
-	} else if included.Count() > 0 {
-		getBlobsV3PartialResponsesTotal.Inc()
 	}
 
-	return included, cellsPerBlob, proofsPerBlob, nil
+	return cellsPerBlob, proofsPerBlob, nil
 }
 
 // upgradeSidecarsToVerifiedSidecars upgrades a list of data column sidecars into verified data column sidecars.

beacon-chain/execution/engine_client_test.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/OffchainLabs/prysm/v7/api/server/structs"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/kzg"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/db/filesystem"
@@ -999,6 +1000,61 @@ func TestClient_HTTP(t *testing.T) {
 		require.NoError(t, err)
 		require.DeepEqual(t, want, resp)
 	})
+	t.Run(GetClientVersionV1, func(t *testing.T) {
+		want := []*structs.ClientVersionV1{{
+			Code:    "GE",
+			Name:    "go-ethereum",
+			Version: "1.15.11-stable",
+			Commit:  "36b2371c",
+		}}
+
+		srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			w.Header().Set("Content-Type", "application/json")
+			defer func() {
+				require.NoError(t, r.Body.Close())
+			}()
+			enc, err := io.ReadAll(r.Body)
+			require.NoError(t, err)
+			jsonRequestString := string(enc)
+
+			// We expect the JSON string RPC request contains the right method name.
+			require.Equal(t, true, strings.Contains(
+				jsonRequestString, GetClientVersionV1,
+			))
+			require.Equal(t, true, strings.Contains(
+				jsonRequestString, "\"code\":\"PM\"",
+			))
+			require.Equal(t, true, strings.Contains(
+				jsonRequestString, "\"name\":\"Prysm\"",
+			))
+			require.Equal(t, true, strings.Contains(
+				jsonRequestString, fmt.Sprintf("\"version\":\"%s\"", version.SemanticVersion()),
+			))
+			require.Equal(t, true, strings.Contains(
+				jsonRequestString, fmt.Sprintf("\"commit\":\"%s\"", version.GitCommit()[:8]),
+			))
+			resp := map[string]any{
+				"jsonrpc": "2.0",
+				"id":      1,
+				"result":  want,
+			}
+			err = json.NewEncoder(w).Encode(resp)
+			require.NoError(t, err)
+		}))
+		defer srv.Close()
+
+		rpcClient, err := rpc.DialHTTP(srv.URL)
+		require.NoError(t, err)
+		defer rpcClient.Close()
+
+		service := &Service{}
+		service.rpcClient = rpcClient
+
+		// We call the RPC method via HTTP and expect a proper result.
+		resp, err := service.GetClientVersionV1(ctx)
+		require.NoError(t, err)
+		require.DeepEqual(t, want, resp)
+	})
 }
 
 func TestReconstructFullBellatrixBlock(t *testing.T) {
@@ -2587,7 +2643,7 @@ func TestConstructDataColumnSidecars(t *testing.T) {
 	ctx := context.Background()
 
 	t.Run("GetBlobsV2 is not supported", func(t *testing.T) {
-		_, _, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
+		_, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
 		require.ErrorContains(t, "engine_getBlobsV2 is not supported", err)
 	})
 
@@ -2598,7 +2654,7 @@ func TestConstructDataColumnSidecars(t *testing.T) {
 		rpcClient, client := setupRpcClientV2(t, srv.URL, client)
 		defer rpcClient.Close()
 
-		dataColumns, _, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
+		dataColumns, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
 		require.NoError(t, err)
 		require.Equal(t, 0, len(dataColumns))
 	})
@@ -2611,7 +2667,7 @@ func TestConstructDataColumnSidecars(t *testing.T) {
 		rpcClient, client := setupRpcClientV2(t, srv.URL, client)
 		defer rpcClient.Close()
 
-		dataColumns, _, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
+		dataColumns, err := client.ConstructDataColumnSidecars(ctx, peerdas.PopulateFromBlock(roBlock))
 		require.NoError(t, err)
 		require.Equal(t, 128, len(dataColumns))
 	})

beacon-chain/execution/metrics.go

@@ -34,25 +34,6 @@ var (
 			Buckets: []float64{25, 50, 100, 200, 500, 1000, 2000, 4000},
 		},
 	)
-	getBlobsV3RequestsTotal = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "beacon_engine_getBlobsV3_requests_total",
-		Help: "Total number of engine_getBlobsV3 requests sent",
-	})
-	getBlobsV3CompleteResponsesTotal = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "beacon_engine_getBlobsV3_complete_responses_total",
-		Help: "Total number of complete engine_getBlobsV3 successful responses received",
-	})
-	getBlobsV3PartialResponsesTotal = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "beacon_engine_getBlobsV3_partial_responses_total",
-		Help: "Total number of engine_getBlobsV3 partial responses received",
-	})
-	getBlobsV3Latency = promauto.NewHistogram(
-		prometheus.HistogramOpts{
-			Name:    "beacon_engine_getBlobsV3_request_duration_seconds",
-			Help:    "Duration of engine_getBlobsV3 requests in seconds",
-			Buckets: []float64{0.025, 0.05, 0.1, 0.2, 0.5, 1, 2, 4},
-		},
-	)
 	errParseCount = promauto.NewCounter(prometheus.CounterOpts{
 		Name: "execution_parse_error_count",
 		Help: "The number of errors that occurred while parsing execution payload",

beacon-chain/execution/testing/BUILD.bazel

@@ -13,6 +13,7 @@ go_library(
         "//visibility:public",
     ],
     deps = [
+        "//api/server/structs:go_default_library",
         "//async/event:go_default_library",
         "//beacon-chain/core/peerdas:go_default_library",
         "//beacon-chain/execution/types:go_default_library",

beacon-chain/execution/testing/mock_engine_client.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"math/big"
 
+	"github.com/OffchainLabs/prysm/v7/api/server/structs"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/config/params"
@@ -42,6 +43,8 @@ type EngineClient struct {
 	ErrorBlobSidecars           error
 	DataColumnSidecars          []blocks.VerifiedRODataColumn
 	ErrorDataColumnSidecars     error
+	ClientVersion               []*structs.ClientVersionV1
+	ErrorClientVersion          error
 }
 
 // NewPayload --
@@ -118,8 +121,8 @@ func (e *EngineClient) ReconstructBlobSidecars(context.Context, interfaces.ReadO
 }
 
 // ConstructDataColumnSidecars is a mock implementation of the ConstructDataColumnSidecars method.
-func (e *EngineClient) ConstructDataColumnSidecars(context.Context, peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, []blocks.PartialDataColumn, error) {
+func (e *EngineClient) ConstructDataColumnSidecars(context.Context, peerdas.ConstructionPopulator) ([]blocks.VerifiedRODataColumn, error) {
-	return e.DataColumnSidecars, nil, e.ErrorDataColumnSidecars
+	return e.DataColumnSidecars, e.ErrorDataColumnSidecars
 }
 
 // GetTerminalBlockHash --
@@ -173,3 +176,8 @@ func (e *EngineClient) GetTerminalBlockHash(ctx context.Context, transitionTime
 		blk = parentBlk
 	}
 }
+
+// GetClientVersionV1 --
+func (e *EngineClient) GetClientVersionV1(context.Context) ([]*structs.ClientVersionV1, error) {
+	return e.ClientVersion, e.ErrorClientVersion
+}

beacon-chain/forkchoice/doubly-linked-tree/BUILD.bazel

@@ -6,7 +6,6 @@ go_library(
         "doc.go",
         "errors.go",
         "forkchoice.go",
-        "last_root.go",
         "log.go",
         "metrics.go",
         "node.go",
@@ -51,7 +50,6 @@ go_test(
     srcs = [
         "ffg_update_test.go",
         "forkchoice_test.go",
-        "last_root_test.go",
         "no_vote_test.go",
         "node_test.go",
         "on_tick_test.go",

beacon-chain/forkchoice/doubly-linked-tree/forkchoice.go

@@ -32,7 +32,6 @@ func New() *ForkChoice {
 		finalizedCheckpoint:           &forkchoicetypes.Checkpoint{},
 		proposerBoostRoot:             [32]byte{},
 		nodeByRoot:                    make(map[[fieldparams.RootLength]byte]*Node),
-		nodeByPayload:                 make(map[[fieldparams.RootLength]byte]*Node),
 		slashedIndices:                make(map[primitives.ValidatorIndex]bool),
 		receivedBlocksLastEpoch:       [fieldparams.SlotsPerEpoch]primitives.Slot{},
 	}

beacon-chain/forkchoice/doubly-linked-tree/last_root.go

@@ -1,26 +0,0 @@
-package doublylinkedtree
-
-import (
-	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
-	"github.com/OffchainLabs/prysm/v7/time/slots"
-)
-
-// LastRoot returns the last canonical block root in the given epoch
-func (f *ForkChoice) LastRoot(epoch primitives.Epoch) [32]byte {
-	head := f.store.headNode
-	headEpoch := slots.ToEpoch(head.slot)
-	epochEnd, err := slots.EpochEnd(epoch)
-	if err != nil {
-		return [32]byte{}
-	}
-	if headEpoch <= epoch {
-		return head.root
-	}
-	for head != nil && head.slot > epochEnd {
-		head = head.parent
-	}
-	if head == nil {
-		return [32]byte{}
-	}
-	return head.root
-}

beacon-chain/forkchoice/doubly-linked-tree/last_root_test.go

@@ -1,38 +0,0 @@
-package doublylinkedtree
-
-import (
-	"testing"
-
-	"github.com/OffchainLabs/prysm/v7/config/params"
-	"github.com/OffchainLabs/prysm/v7/testing/require"
-)
-
-func TestLastRoot(t *testing.T) {
-	f := setup(0, 0)
-	ctx := t.Context()
-
-	st, root, err := prepareForkchoiceState(ctx, 1, [32]byte{'1'}, params.BeaconConfig().ZeroHash, [32]byte{'1'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 2, [32]byte{'2'}, [32]byte{'1'}, [32]byte{'2'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 3, [32]byte{'3'}, [32]byte{'1'}, [32]byte{'3'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 32, [32]byte{'4'}, [32]byte{'3'}, [32]byte{'4'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 33, [32]byte{'5'}, [32]byte{'2'}, [32]byte{'5'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	st, root, err = prepareForkchoiceState(ctx, 34, [32]byte{'6'}, [32]byte{'5'}, [32]byte{'6'}, 0, 0)
-	require.NoError(t, err)
-	require.NoError(t, f.InsertNode(ctx, st, root))
-	headNode := f.store.nodeByRoot[[32]byte{'6'}]
-	f.store.headNode = headNode
-	require.Equal(t, [32]byte{'6'}, f.store.headNode.root)
-	require.Equal(t, [32]byte{'2'}, f.LastRoot(0))
-	require.Equal(t, [32]byte{'6'}, f.LastRoot(1))
-	require.Equal(t, [32]byte{'6'}, f.LastRoot(2))
-}

beacon-chain/forkchoice/doubly-linked-tree/optimistic_sync.go

@@ -94,6 +94,5 @@ func (s *Store) removeNodeAndChildren(ctx context.Context, node *Node, invalidRo
 		s.previousProposerBoostScore = 0
 	}
 	delete(s.nodeByRoot, node.root)
-	delete(s.nodeByPayload, node.payloadHash)
 	return invalidRoots, nil
 }

beacon-chain/forkchoice/doubly-linked-tree/store.go

@@ -113,7 +113,6 @@ func (s *Store) insert(ctx context.Context,
 		}
 	}
 
-	s.nodeByPayload[payloadHash] = n
 	s.nodeByRoot[root] = n
 	if parent == nil {
 		if s.treeRootNode == nil {
@@ -122,7 +121,6 @@ func (s *Store) insert(ctx context.Context,
 			s.highestReceivedNode = n
 		} else {
 			delete(s.nodeByRoot, root)
-			delete(s.nodeByPayload, payloadHash)
 			return nil, errInvalidParentRoot
 		}
 	} else {
@@ -191,7 +189,6 @@ func (s *Store) pruneFinalizedNodeByRootMap(ctx context.Context, node, finalized
 
 	node.children = nil
 	delete(s.nodeByRoot, node.root)
-	delete(s.nodeByPayload, node.payloadHash)
 	return nil
 }
 
@@ -273,21 +270,6 @@ func (f *ForkChoice) HighestReceivedBlockSlot() primitives.Slot {
 	return f.store.highestReceivedNode.slot
 }
 
-// HighestReceivedBlockDelay returns the number of slots that the highest
-// received block was late when receiving it. For example, a block was late by 12 slots,
-// then this method is expected to return 12.
-func (f *ForkChoice) HighestReceivedBlockDelay() primitives.Slot {
-	n := f.store.highestReceivedNode
-	if n == nil {
-		return 0
-	}
-	sss, err := slots.SinceSlotStart(n.slot, f.store.genesisTime, n.timestamp)
-	if err != nil {
-		return 0
-	}
-	return primitives.Slot(uint64(sss/time.Second) / params.BeaconConfig().SecondsPerSlot)
-}
-
 // ReceivedBlocksLastEpoch returns the number of blocks received in the last epoch
 func (f *ForkChoice) ReceivedBlocksLastEpoch() (uint64, error) {
 	count := uint64(0)

beacon-chain/forkchoice/doubly-linked-tree/store_test.go

@@ -128,10 +128,9 @@ func TestStore_Insert(t *testing.T) {
 	// The new node does not have a parent.
 	treeRootNode := &Node{slot: 0, root: indexToHash(0)}
 	nodeByRoot := map[[32]byte]*Node{indexToHash(0): treeRootNode}
-	nodeByPayload := map[[32]byte]*Node{indexToHash(0): treeRootNode}
 	jc := &forkchoicetypes.Checkpoint{Epoch: 0}
 	fc := &forkchoicetypes.Checkpoint{Epoch: 0}
-	s := &Store{nodeByRoot: nodeByRoot, treeRootNode: treeRootNode, nodeByPayload: nodeByPayload, justifiedCheckpoint: jc, finalizedCheckpoint: fc, highestReceivedNode: &Node{}}
+	s := &Store{nodeByRoot: nodeByRoot, treeRootNode: treeRootNode, justifiedCheckpoint: jc, finalizedCheckpoint: fc, highestReceivedNode: &Node{}}
 	payloadHash := [32]byte{'a'}
 	ctx := t.Context()
 	_, blk, err := prepareForkchoiceState(ctx, 100, indexToHash(100), indexToHash(0), payloadHash, 1, 1)
@@ -238,7 +237,6 @@ func TestStore_Prune_NoDanglingBranch(t *testing.T) {
 	s.finalizedCheckpoint.Root = indexToHash(1)
 	require.NoError(t, s.prune(t.Context()))
 	require.Equal(t, len(s.nodeByRoot), 1)
-	require.Equal(t, len(s.nodeByPayload), 1)
 }
 
 // This test starts with the following branching diagram
@@ -319,8 +317,6 @@ func TestStore_PruneMapsNodes(t *testing.T) {
 	s.finalizedCheckpoint.Root = indexToHash(1)
 	require.NoError(t, s.prune(t.Context()))
 	require.Equal(t, len(s.nodeByRoot), 1)
-	require.Equal(t, len(s.nodeByPayload), 1)
-
 }
 
 func TestForkChoice_ReceivedBlocksLastEpoch(t *testing.T) {
@@ -339,7 +335,6 @@ func TestForkChoice_ReceivedBlocksLastEpoch(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, uint64(1), count)
 	require.Equal(t, primitives.Slot(1), f.HighestReceivedBlockSlot())
-	require.Equal(t, primitives.Slot(0), f.HighestReceivedBlockDelay())
 
 	// 64
 	// Received block last epoch is 1
@@ -352,7 +347,6 @@ func TestForkChoice_ReceivedBlocksLastEpoch(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, uint64(1), count)
 	require.Equal(t, primitives.Slot(64), f.HighestReceivedBlockSlot())
-	require.Equal(t, primitives.Slot(0), f.HighestReceivedBlockDelay())
 
 	// 64 65
 	// Received block last epoch is 2
@@ -365,7 +359,6 @@ func TestForkChoice_ReceivedBlocksLastEpoch(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, uint64(2), count)
 	require.Equal(t, primitives.Slot(65), f.HighestReceivedBlockSlot())
-	require.Equal(t, primitives.Slot(1), f.HighestReceivedBlockDelay())
 
 	// 64 65 66
 	// Received block last epoch is 3
@@ -717,17 +710,3 @@ func TestStore_CleanupInserting(t *testing.T) {
 	require.NotNil(t, f.InsertNode(ctx, st, blk))
 	require.Equal(t, false, f.HasNode(blk.Root()))
 }
-
-func TestStore_HighestReceivedBlockDelay(t *testing.T) {
-	f := ForkChoice{
-		store: &Store{
-			genesisTime: time.Unix(0, 0),
-			highestReceivedNode: &Node{
-				slot:      10,
-				timestamp: time.Unix(int64(((10 + 12) * params.BeaconConfig().SecondsPerSlot)), 0), // 12 slots late
-			},
-		},
-	}
-
-	require.Equal(t, primitives.Slot(12), f.HighestReceivedBlockDelay())
-}

beacon-chain/forkchoice/doubly-linked-tree/types.go

@@ -36,7 +36,6 @@ type Store struct {
 	treeRootNode                  *Node                                  // the root node of the store tree.
 	headNode                      *Node                                  // last head Node
 	nodeByRoot                    map[[fieldparams.RootLength]byte]*Node // nodes indexed by roots.
-	nodeByPayload                 map[[fieldparams.RootLength]byte]*Node // nodes indexed by payload Hash
 	slashedIndices                map[primitives.ValidatorIndex]bool     // the list of equivocating validator indices
 	originRoot                    [fieldparams.RootLength]byte           // The genesis block root
 	genesisTime                   time.Time

beacon-chain/forkchoice/interfaces.go

@@ -67,13 +67,11 @@ type FastGetter interface {
 	HasNode([32]byte) bool
 	HighestReceivedBlockSlot() primitives.Slot
 	HighestReceivedBlockRoot() [32]byte
-	HighestReceivedBlockDelay() primitives.Slot
 	IsCanonical(root [32]byte) bool
 	IsOptimistic(root [32]byte) (bool, error)
 	IsViableForCheckpoint(*forkchoicetypes.Checkpoint) (bool, error)
 	JustifiedCheckpoint() *forkchoicetypes.Checkpoint
 	JustifiedPayloadBlockHash() [32]byte
-	LastRoot(primitives.Epoch) [32]byte
 	NodeCount() int
 	PreviousJustifiedCheckpoint() *forkchoicetypes.Checkpoint
 	ProposerBoost() [fieldparams.RootLength]byte

beacon-chain/forkchoice/ro.go

@@ -121,13 +121,6 @@ func (ro *ROForkChoice) HighestReceivedBlockRoot() [32]byte {
 	return ro.getter.HighestReceivedBlockRoot()
 }
 
-// HighestReceivedBlockDelay delegates to the underlying forkchoice call, under a lock.
-func (ro *ROForkChoice) HighestReceivedBlockDelay() primitives.Slot {
-	ro.l.RLock()
-	defer ro.l.RUnlock()
-	return ro.getter.HighestReceivedBlockDelay()
-}
-
 // ReceivedBlocksLastEpoch delegates to the underlying forkchoice call, under a lock.
 func (ro *ROForkChoice) ReceivedBlocksLastEpoch() (uint64, error) {
 	ro.l.RLock()
@@ -163,13 +156,6 @@ func (ro *ROForkChoice) Slot(root [32]byte) (primitives.Slot, error) {
 	return ro.getter.Slot(root)
 }
 
-// LastRoot delegates to the underlying forkchoice call, under a lock.
-func (ro *ROForkChoice) LastRoot(e primitives.Epoch) [32]byte {
-	ro.l.RLock()
-	defer ro.l.RUnlock()
-	return ro.getter.LastRoot(e)
-}
-
 // DependentRoot delegates to the underlying forkchoice call, under a lock.
 func (ro *ROForkChoice) DependentRoot(epoch primitives.Epoch) ([32]byte, error) {
 	ro.l.RLock()

beacon-chain/forkchoice/ro_test.go

@@ -30,7 +30,6 @@ const (
 	nodeCountCalled
 	highestReceivedBlockSlotCalled
 	highestReceivedBlockRootCalled
-	highestReceivedBlockDelayCalled
 	receivedBlocksLastEpochCalled
 	weightCalled
 	isOptimisticCalled
@@ -118,11 +117,6 @@ func TestROLocking(t *testing.T) {
 			call: highestReceivedBlockSlotCalled,
 			cb:   func(g FastGetter) { g.HighestReceivedBlockSlot() },
 		},
-		{
-			name: "highestReceivedBlockDelayCalled",
-			call: highestReceivedBlockDelayCalled,
-			cb:   func(g FastGetter) { g.HighestReceivedBlockDelay() },
-		},
 		{
 			name: "receivedBlocksLastEpochCalled",
 			call: receivedBlocksLastEpochCalled,
@@ -148,11 +142,6 @@ func TestROLocking(t *testing.T) {
 			call: slotCalled,
 			cb:   func(g FastGetter) { _, err := g.Slot([32]byte{}); _discard(t, err) },
 		},
-		{
-			name: "lastRootCalled",
-			call: lastRootCalled,
-			cb:   func(g FastGetter) { g.LastRoot(0) },
-		},
 		{
 			name: "targetRootForEpochCalled",
 			call: targetRootForEpochCalled,
@@ -265,11 +254,6 @@ func (ro *mockROForkchoice) HighestReceivedBlockRoot() [32]byte {
 	return [32]byte{}
 }
 
-func (ro *mockROForkchoice) HighestReceivedBlockDelay() primitives.Slot {
-	ro.calls = append(ro.calls, highestReceivedBlockDelayCalled)
-	return 0
-}
-
 func (ro *mockROForkchoice) ReceivedBlocksLastEpoch() (uint64, error) {
 	ro.calls = append(ro.calls, receivedBlocksLastEpochCalled)
 	return 0, nil
@@ -295,11 +279,6 @@ func (ro *mockROForkchoice) Slot(_ [32]byte) (primitives.Slot, error) {
 	return 0, nil
 }
 
-func (ro *mockROForkchoice) LastRoot(_ primitives.Epoch) [32]byte {
-	ro.calls = append(ro.calls, lastRootCalled)
-	return [32]byte{}
-}
-
 // DependentRoot impoements FastGetter.
 func (ro *mockROForkchoice) DependentRoot(_ primitives.Epoch) ([32]byte, error) {
 	ro.calls = append(ro.calls, dependentRootCalled)

beacon-chain/node/node.go

@@ -678,7 +678,6 @@ func (b *BeaconNode) registerP2P(cliCtx *cli.Context) error {
 		DB:                    b.db,
 		StateGen:              b.stateGen,
 		ClockWaiter:           b.ClockWaiter,
-		PartialDataColumns:    b.cliCtx.Bool(flags.PartialDataColumns.Name),
 	})
 	if err != nil {
 		return err

beacon-chain/p2p/BUILD.bazel

@@ -52,7 +52,6 @@ go_library(
         "//beacon-chain/db:go_default_library",
         "//beacon-chain/db/kv:go_default_library",
         "//beacon-chain/p2p/encoder:go_default_library",
-        "//beacon-chain/p2p/partialdatacolumnbroadcaster:go_default_library",
         "//beacon-chain/p2p/peers:go_default_library",
         "//beacon-chain/p2p/peers/peerdata:go_default_library",
         "//beacon-chain/p2p/peers/scorers:go_default_library",

beacon-chain/p2p/broadcaster.go

@@ -343,7 +343,7 @@ func (s *Service) BroadcastLightClientFinalityUpdate(ctx context.Context, update
 // there is at least one peer in each needed subnet. If not, it will attempt to find one before broadcasting.
 // This function is non-blocking. It stops trying to broadcast a given sidecar when more than one slot has passed, or the context is
 // cancelled (whichever comes first).
-func (s *Service) BroadcastDataColumnSidecars(ctx context.Context, sidecars []blocks.VerifiedRODataColumn, partialColumns []blocks.PartialDataColumn) error {
+func (s *Service) BroadcastDataColumnSidecars(ctx context.Context, sidecars []blocks.VerifiedRODataColumn) error {
 	// Increase the number of broadcast attempts.
 	dataColumnSidecarBroadcastAttempts.Add(float64(len(sidecars)))
 
@@ -353,15 +353,16 @@ func (s *Service) BroadcastDataColumnSidecars(ctx context.Context, sidecars []bl
 		return errors.Wrap(err, "current fork digest")
 	}
 
-	go s.broadcastDataColumnSidecars(ctx, forkDigest, sidecars, partialColumns)
+	go s.broadcastDataColumnSidecars(ctx, forkDigest, sidecars)
 
 	return nil
 }
 
-// broadcastDataColumnSidecars broadcasts multiple data column sidecars to the p2p network, after ensuring
+// broadcastDataColumnSidecars broadcasts multiple data column sidecars to the p2p network.
-// there is at least one peer in each needed subnet. If not, it will attempt to find one before broadcasting.
+// For sidecars with available peers, it uses batch publishing.
-// It returns when all broadcasts are complete, or the context is cancelled (whichever comes first).
+// For sidecars without peers, it finds peers first and then publishes individually.
-func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [fieldparams.VersionLength]byte, sidecars []blocks.VerifiedRODataColumn, partialColumns []blocks.PartialDataColumn) {
+// Both paths run in parallel. It returns when all broadcasts are complete, or the context is cancelled.
+func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [fieldparams.VersionLength]byte, sidecars []blocks.VerifiedRODataColumn) {
 	type rootAndIndex struct {
 		root  [fieldparams.RootLength]byte
 		index uint64
@@ -371,8 +372,8 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 	logLevel := logrus.GetLevel()
 	slotPerRoot := make(map[[fieldparams.RootLength]byte]primitives.Slot, 1)
 
-	topicFunc := func(dcIndex uint64) (topic string, wrappedSubIdx uint64, subnet uint64) {
+	topicFunc := func(sidecar blocks.VerifiedRODataColumn) (topic string, wrappedSubIdx uint64, subnet uint64) {
-		subnet = peerdas.ComputeSubnetForDataColumnSidecar(dcIndex)
+		subnet = peerdas.ComputeSubnetForDataColumnSidecar(sidecar.Index)
 		topic = dataColumnSubnetToTopic(subnet, forkDigest)
 		wrappedSubIdx = subnet + dataColumnSubnetVal
 		return
@@ -385,7 +386,7 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 	for _, sidecar := range sidecars {
 		slotPerRoot[sidecar.BlockRoot()] = sidecar.Slot()
 
-		topic, wrappedSubIdx, _ := topicFunc(sidecar.Index)
+		topic, wrappedSubIdx, _ := topicFunc(sidecar)
 		// Check if we have a peer for this subnet (use RLock for read-only check).
 		mu := s.subnetLocker(wrappedSubIdx)
 		mu.RLock()
@@ -410,7 +411,7 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 			ctx := trace.NewContext(s.ctx, span)
 			defer span.End()
 
-			topic, _, _ := topicFunc(sidecar.Index)
+			topic, _, _ := topicFunc(sidecar)
 
 			if err := s.batchObject(ctx, &messageBatch, sidecar, topic); err != nil {
 				tracing.AnnotateError(span, err)
@@ -418,10 +419,6 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 				return
 			}
 
-			// Increase the number of successful broadcasts.
-			dataColumnSidecarBroadcasts.Inc()
-
-			// Record the timing for log purposes.
 			if logLevel >= logrus.DebugLevel {
 				root := sidecar.BlockRoot()
 				timings.Store(rootAndIndex{root: root, index: sidecar.Index}, time.Now())
@@ -436,7 +433,7 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 			ctx := trace.NewContext(s.ctx, span)
 			defer span.End()
 
-			topic, wrappedSubIdx, subnet := topicFunc(sidecar.Index)
+			topic, wrappedSubIdx, subnet := topicFunc(sidecar)
 
 			// Find peers for this sidecar's subnet.
 			if err := s.findPeersIfNeeded(ctx, wrappedSubIdx, DataColumnSubnetTopicFormat, forkDigest, subnet); err != nil {
@@ -461,32 +458,6 @@ func (s *Service) broadcastDataColumnSidecars(ctx context.Context, forkDigest [f
 		})
 	}
 
-	if s.partialColumnBroadcaster != nil {
-		// Note: There is not batch publish for partial columns.
-		for _, partialColumn := range partialColumns {
-			individualWg.Go(func() {
-				_, span := trace.StartSpan(ctx, "p2p.broadcastPartialDataColumn")
-				ctx := trace.NewContext(s.ctx, span)
-				defer span.End()
-
-				topic, wrappedSubIdx, subnet := topicFunc(partialColumn.Index)
-
-				// Find peers for this sidecar's subnet.
-				if err := s.findPeersIfNeeded(ctx, wrappedSubIdx, DataColumnSubnetTopicFormat, forkDigest, subnet); err != nil {
-					tracing.AnnotateError(span, err)
-					log.WithError(err).Error("Cannot find peers if needed")
-					return
-				}
-
-				fullTopicStr := topic + s.Encoding().ProtocolSuffix()
-				if err := s.partialColumnBroadcaster.Publish(fullTopicStr, partialColumn); err != nil {
-					tracing.AnnotateError(span, err)
-					log.WithError(err).Error("Cannot partial broadcast data column sidecar")
-				}
-			})
-		}
-	}
-
 	// Wait for batch to be populated, then publish.
 	batchWg.Wait()
 	if len(sidecarsWithPeers) > 0 {

beacon-chain/p2p/broadcaster_test.go

@@ -803,7 +803,7 @@ func TestService_BroadcastDataColumn(t *testing.T) {
 	}, 5*time.Second, 10*time.Millisecond, "libp2p mesh did not establish")
 
 	// Broadcast to peers and wait.
-	err = service.BroadcastDataColumnSidecars(ctx, []blocks.VerifiedRODataColumn{verifiedRoSidecar}, nil)
+	err = service.BroadcastDataColumnSidecars(ctx, []blocks.VerifiedRODataColumn{verifiedRoSidecar})
 	require.NoError(t, err)
 
 	// Receive the message.
@@ -969,7 +969,7 @@ func TestService_BroadcastDataColumnRoundRobin(t *testing.T) {
 	time.Sleep(100 * time.Millisecond)
 
 	// Broadcast all sidecars.
-	err = service.BroadcastDataColumnSidecars(ctx, verifiedRoSidecars, nil)
+	err = service.BroadcastDataColumnSidecars(ctx, verifiedRoSidecars)
 	require.NoError(t, err)
 	// Give some time for messages to be sent.
 	time.Sleep(100 * time.Millisecond)

beacon-chain/p2p/config.go

@@ -26,7 +26,6 @@ const (
 // Config for the p2p service. These parameters are set from application level flags
 // to initialize the p2p service.
 type Config struct {
-	PartialDataColumns    bool
 	NoDiscovery           bool
 	EnableUPnP            bool
 	StaticPeerID          bool

beacon-chain/p2p/interfaces.go

@@ -4,7 +4,6 @@ import (
 	"context"
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/encoder"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
@@ -29,7 +28,6 @@ type (
 		Broadcaster
 		SetStreamHandler
 		PubSubProvider
-		PartialColumnBroadcasterProvider
 		PubSubTopicUser
 		SenderEncoder
 		PeerManager
@@ -54,7 +52,7 @@ type (
 		BroadcastBlob(ctx context.Context, subnet uint64, blob *ethpb.BlobSidecar) error
 		BroadcastLightClientOptimisticUpdate(ctx context.Context, update interfaces.LightClientOptimisticUpdate) error
 		BroadcastLightClientFinalityUpdate(ctx context.Context, update interfaces.LightClientFinalityUpdate) error
-		BroadcastDataColumnSidecars(ctx context.Context, sidecars []blocks.VerifiedRODataColumn, partialColumns []blocks.PartialDataColumn) error
+		BroadcastDataColumnSidecars(ctx context.Context, sidecars []blocks.VerifiedRODataColumn) error
 	}
 
 	// SetStreamHandler configures p2p to handle streams of a certain topic ID.
@@ -94,11 +92,6 @@ type (
 		PubSub() *pubsub.PubSub
 	}
 
-	// PubSubProvider provides the p2p pubsub protocol.
-	PartialColumnBroadcasterProvider interface {
-		PartialColumnBroadcaster() *partialdatacolumnbroadcaster.PartialColumnBroadcaster
-	}
-
 	// PeerManager abstracts some peer management methods from libp2p.
 	PeerManager interface {
 		Disconnect(peer.ID) error

beacon-chain/p2p/monitoring.go

@@ -157,11 +157,6 @@ var (
 		Help: "The number of publish messages received via rpc for a particular topic",
 	},
 		[]string{"topic"})
-	pubsubRPCPubRecvSize = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "p2p_pubsub_rpc_recv_pub_size_total",
-		Help: "The total size of publish messages received via rpc for a particular topic",
-	},
-		[]string{"topic", "is_partial"})
 	pubsubRPCDrop = promauto.NewCounterVec(prometheus.CounterOpts{
 		Name: "p2p_pubsub_rpc_drop_total",
 		Help: "The number of messages dropped via rpc for a particular control message",
@@ -176,11 +171,6 @@ var (
 		Help: "The number of publish messages dropped via rpc for a particular topic",
 	},
 		[]string{"topic"})
-	pubsubRPCPubDropSize = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "p2p_pubsub_rpc_drop_pub_size_total",
-		Help: "The total size of publish messages dropped via rpc for a particular topic",
-	},
-		[]string{"topic", "is_partial"})
 	pubsubRPCSent = promauto.NewCounterVec(prometheus.CounterOpts{
 		Name: "p2p_pubsub_rpc_sent_total",
 		Help: "The number of messages sent via rpc for a particular control message",
@@ -195,16 +185,6 @@ var (
 		Help: "The number of publish messages sent via rpc for a particular topic",
 	},
 		[]string{"topic"})
-	pubsubRPCPubSentSize = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "gossipsub_pubsub_rpc_sent_pub_size_total",
-		Help: "The total size of publish messages sent via rpc for a particular topic",
-	},
-		[]string{"topic", "is_partial"})
-	pubsubMeshPeers = promauto.NewGaugeVec(prometheus.GaugeOpts{
-		Name: "gossipsub_mesh_peers",
-		Help: "The number of capable peers in mesh",
-	},
-		[]string{"topic", "supports_partial"})
 )
 
 func (s *Service) updateMetrics() {

beacon-chain/p2p/partialdatacolumnbroadcaster/BUILD.bazel

@@ -1,28 +0,0 @@
-load("@prysm//tools/go:def.bzl", "go_library")
-
-go_library(
-    name = "go_default_library",
-    srcs = [
-        "log.go",
-        "metrics.go",
-        "partial.go",
-    ],
-    importpath = "github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//config/params:go_default_library",
-        "//consensus-types/blocks:go_default_library",
-        "//internal/logrusadapter:go_default_library",
-        "//proto/prysm/v1alpha1:go_default_library",
-        "@com_github_libp2p_go_libp2p//core/peer:go_default_library",
-        "@com_github_libp2p_go_libp2p_pubsub//:go_default_library",
-        "@com_github_libp2p_go_libp2p_pubsub//partialmessages:go_default_library",
-        "@com_github_libp2p_go_libp2p_pubsub//partialmessages/bitmap:go_default_library",
-        "@com_github_libp2p_go_libp2p_pubsub//pb:go_default_library",
-        "@com_github_pkg_errors//:go_default_library",
-        "@com_github_prometheus_client_golang//prometheus:go_default_library",
-        "@com_github_prometheus_client_golang//prometheus/promauto:go_default_library",
-        "@com_github_prysmaticlabs_go_bitfield//:go_default_library",
-        "@com_github_sirupsen_logrus//:go_default_library",
-    ],
-)

beacon-chain/p2p/partialdatacolumnbroadcaster/integrationtest/BUILD.bazel

@@ -1,25 +0,0 @@
-load("@prysm//tools/go:def.bzl", "go_test")
-
-go_test(
-    name = "go_default_test",
-    size = "medium",
-    srcs = ["two_node_test.go"],
-    deps = [
-        "//beacon-chain/core/peerdas:go_default_library",
-        "//beacon-chain/p2p:go_default_library",
-        "//beacon-chain/p2p/encoder:go_default_library",
-        "//beacon-chain/p2p/partialdatacolumnbroadcaster:go_default_library",
-        "//config/fieldparams:go_default_library",
-        "//config/params:go_default_library",
-        "//consensus-types/blocks:go_default_library",
-        "//proto/prysm/v1alpha1:go_default_library",
-        "//testing/assert:go_default_library",
-        "//testing/require:go_default_library",
-        "//testing/util:go_default_library",
-        "@com_github_libp2p_go_libp2p//core/peer:go_default_library",
-        "@com_github_libp2p_go_libp2p//x/simlibp2p:go_default_library",
-        "@com_github_libp2p_go_libp2p_pubsub//:go_default_library",
-        "@com_github_marcopolo_simnet//:go_default_library",
-        "@com_github_sirupsen_logrus//:go_default_library",
-    ],
-)

beacon-chain/p2p/partialdatacolumnbroadcaster/integrationtest/two_node_test.go

@@ -1,256 +0,0 @@
-package integrationtest
-
-import (
-	"context"
-	"crypto/rand"
-	"fmt"
-	"testing"
-	"testing/synctest"
-	"time"
-
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/encoder"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
-	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
-	"github.com/OffchainLabs/prysm/v7/config/params"
-	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
-	ethpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
-	"github.com/OffchainLabs/prysm/v7/testing/assert"
-	"github.com/OffchainLabs/prysm/v7/testing/require"
-	"github.com/OffchainLabs/prysm/v7/testing/util"
-	pubsub "github.com/libp2p/go-libp2p-pubsub"
-	"github.com/libp2p/go-libp2p/core/peer"
-	simlibp2p "github.com/libp2p/go-libp2p/x/simlibp2p"
-	"github.com/marcopolo/simnet"
-	"github.com/sirupsen/logrus"
-)
-
-// TestTwoNodePartialColumnExchange tests that two nodes can exchange partial columns
-// and reconstruct the complete column. Node 1 has cells 0-2, Node 2 has cells 3-5.
-// After exchange, both should have all cells.
-func TestTwoNodePartialColumnExchange(t *testing.T) {
-	synctest.Test(t, func(t *testing.T) {
-		// Create a simulated libp2p network
-		latency := time.Millisecond * 10
-		network, meta, err := simlibp2p.SimpleLibp2pNetwork([]simlibp2p.NodeLinkSettingsAndCount{
-			{LinkSettings: simnet.NodeBiDiLinkSettings{
-				Downlink: simnet.LinkSettings{BitsPerSecond: 20 * simlibp2p.OneMbps, Latency: latency / 2},
-				Uplink:   simnet.LinkSettings{BitsPerSecond: 20 * simlibp2p.OneMbps, Latency: latency / 2},
-			}, Count: 2},
-		}, simlibp2p.NetworkSettings{UseBlankHost: true})
-		require.NoError(t, err)
-		require.NoError(t, network.Start())
-		defer func() {
-			require.NoError(t, network.Close())
-		}()
-		defer func() {
-			for _, node := range meta.Nodes {
-				err := node.Close()
-				if err != nil {
-					panic(err)
-				}
-			}
-		}()
-
-		h1 := meta.Nodes[0]
-		h2 := meta.Nodes[1]
-
-		logger := logrus.New()
-		logger.SetLevel(logrus.DebugLevel)
-		broadcaster1 := partialdatacolumnbroadcaster.NewBroadcaster(logger)
-		broadcaster2 := partialdatacolumnbroadcaster.NewBroadcaster(logger)
-
-		opts1 := broadcaster1.AppendPubSubOpts([]pubsub.Option{
-			pubsub.WithMessageSigning(false),
-			pubsub.WithStrictSignatureVerification(false),
-		})
-		opts2 := broadcaster2.AppendPubSubOpts([]pubsub.Option{
-			pubsub.WithMessageSigning(false),
-			pubsub.WithStrictSignatureVerification(false),
-		})
-
-		ctx, cancel := context.WithCancel(context.Background())
-		defer cancel()
-		ps1, err := pubsub.NewGossipSub(ctx, h1, opts1...)
-		require.NoError(t, err)
-		ps2, err := pubsub.NewGossipSub(ctx, h2, opts2...)
-		require.NoError(t, err)
-
-		defer func() {
-			broadcaster1.Stop()
-			broadcaster2.Stop()
-		}()
-
-		// Generate Test Data
-		var blockRoot [fieldparams.RootLength]byte
-		copy(blockRoot[:], []byte("test-block-root"))
-
-		numCells := 6
-		commitments := make([][]byte, numCells)
-		cells := make([][]byte, numCells)
-		proofs := make([][]byte, numCells)
-
-		for i := range numCells {
-			commitments[i] = make([]byte, 48)
-
-			cells[i] = make([]byte, 2048)
-			_, err := rand.Read(cells[i])
-			require.NoError(t, err)
-			proofs[i] = make([]byte, 48)
-			_ = fmt.Appendf(proofs[i][:0], "proof %d", i)
-		}
-
-		roDC, _ := util.CreateTestVerifiedRoDataColumnSidecars(t, []util.DataColumnParam{
-			{
-				BodyRoot:       blockRoot[:],
-				KzgCommitments: commitments,
-				Column:         cells,
-				KzgProofs:      proofs,
-			},
-		})
-
-		pc1, err := blocks.NewPartialDataColumn(roDC[0].DataColumnSidecar.SignedBlockHeader, roDC[0].Index, roDC[0].KzgCommitments, roDC[0].KzgCommitmentsInclusionProof)
-		require.NoError(t, err)
-		pc2, err := blocks.NewPartialDataColumn(roDC[0].DataColumnSidecar.SignedBlockHeader, roDC[0].Index, roDC[0].KzgCommitments, roDC[0].KzgCommitmentsInclusionProof)
-		require.NoError(t, err)
-
-		// Split data
-		for i := range numCells {
-			if i%2 == 0 {
-				pc1.ExtendFromVerfifiedCell(uint64(i), roDC[0].Column[i], roDC[0].KzgProofs[i])
-			} else {
-				pc2.ExtendFromVerfifiedCell(uint64(i), roDC[0].Column[i], roDC[0].KzgProofs[i])
-			}
-		}
-
-		// Setup Topic and Subscriptions
-		digest := params.ForkDigest(0)
-		columnIndex := uint64(12)
-		subnet := peerdas.ComputeSubnetForDataColumnSidecar(columnIndex)
-		topicStr := fmt.Sprintf(p2p.DataColumnSubnetTopicFormat, digest, subnet) +
-			encoder.SszNetworkEncoder{}.ProtocolSuffix()
-
-		time.Sleep(100 * time.Millisecond)
-
-		topic1, err := ps1.Join(topicStr, pubsub.RequestPartialMessages())
-		require.NoError(t, err)
-		topic2, err := ps2.Join(topicStr, pubsub.RequestPartialMessages())
-		require.NoError(t, err)
-
-		// Header validator
-		headerValidator := func(header *ethpb.PartialDataColumnHeader) (reject bool, err error) {
-			if header == nil {
-				return false, fmt.Errorf("nil header")
-			}
-			if header.SignedBlockHeader == nil || header.SignedBlockHeader.Header == nil {
-				return true, fmt.Errorf("nil signed block header")
-			}
-			if len(header.KzgCommitments) == 0 {
-				return true, fmt.Errorf("empty kzg commitments")
-			}
-			// Verify inclusion proof
-			if err := peerdas.VerifyPartialDataColumnHeaderInclusionProof(header); err != nil {
-				return true, fmt.Errorf("invalid inclusion proof: %w", err)
-			}
-			t.Log("Header validation passed")
-			return false, nil
-		}
-
-		cellValidator := func(_ []blocks.CellProofBundle) error {
-			return nil
-		}
-
-		node1Complete := make(chan blocks.VerifiedRODataColumn, 1)
-		node2Complete := make(chan blocks.VerifiedRODataColumn, 1)
-
-		handler1 := func(topic string, col blocks.VerifiedRODataColumn) {
-			t.Logf("Node 1: Completed! Column has %d cells", len(col.Column))
-			node1Complete <- col
-		}
-
-		handler2 := func(topic string, col blocks.VerifiedRODataColumn) {
-			t.Logf("Node 2: Completed! Column has %d cells", len(col.Column))
-			node2Complete <- col
-		}
-
-		// Connect hosts
-		err = h1.Connect(context.Background(), peer.AddrInfo{
-			ID:    h2.ID(),
-			Addrs: h2.Addrs(),
-		})
-		require.NoError(t, err)
-		time.Sleep(300 * time.Millisecond)
-
-		// Subscribe to regular GossipSub (critical for partial message RPC exchange!)
-		sub1, err := topic1.Subscribe()
-		require.NoError(t, err)
-		defer sub1.Cancel()
-
-		sub2, err := topic2.Subscribe()
-		require.NoError(t, err)
-		defer sub2.Cancel()
-
-		noopHeaderHandler := func(header *ethpb.PartialDataColumnHeader) chan bool {
-			ch := make(chan bool)
-			close(ch)
-			return ch
-		}
-
-		broadcaster1.ValidateHeader = headerValidator
-		broadcaster1.ValidateColumn = cellValidator
-		broadcaster1.HandleColumn = handler1
-		broadcaster1.HandleHeader = noopHeaderHandler
-
-		broadcaster2.ValidateHeader = headerValidator
-		broadcaster2.ValidateColumn = cellValidator
-		broadcaster2.HandleColumn = handler2
-		broadcaster2.HandleHeader = noopHeaderHandler
-
-		go broadcaster1.Start()
-		go broadcaster2.Start()
-
-		err = broadcaster1.Subscribe(topic1)
-		require.NoError(t, err)
-		err = broadcaster2.Subscribe(topic2)
-		require.NoError(t, err)
-
-		// Wait for mesh to form
-		time.Sleep(2 * time.Second)
-
-		// Publish
-		t.Log("Publishing from Node 1")
-		err = broadcaster1.Publish(topicStr, pc1)
-		require.NoError(t, err)
-
-		time.Sleep(200 * time.Millisecond)
-
-		t.Log("Publishing from Node 2")
-		err = broadcaster2.Publish(topicStr, pc2)
-		require.NoError(t, err)
-
-		//  Wait for Completion
-		timeout := time.After(10 * time.Second)
-		var col1, col2 blocks.VerifiedRODataColumn
-		receivedCount := 0
-
-		for receivedCount < 2 {
-			select {
-			case col1 = <-node1Complete:
-				t.Log("Node 1 completed reconstruction")
-				receivedCount++
-			case col2 = <-node2Complete:
-				t.Log("Node 2 completed reconstruction")
-				receivedCount++
-			case <-timeout:
-				t.Fatalf("Timeout: Only %d/2 nodes completed", receivedCount)
-			}
-		}
-
-		// Verify both columns have all cells
-		assert.Equal(t, numCells, len(col1.Column), "Node 1 should have all cells")
-		assert.Equal(t, numCells, len(col2.Column), "Node 2 should have all cells")
-		assert.DeepSSZEqual(t, cells, col1.Column, "Node 1 cell mismatch")
-		assert.DeepSSZEqual(t, cells, col2.Column, "Node 2 cell mismatch")
-	})
-}

beacon-chain/p2p/partialdatacolumnbroadcaster/log.go

@@ -1,9 +0,0 @@
-// Code generated by hack/gen-logs.sh; DO NOT EDIT.
-// This file is created and regenerated automatically. Anything added here might get removed.
-package partialdatacolumnbroadcaster
-
-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", "beacon-chain/p2p/partialdatacolumnbroadcaster")

beacon-chain/p2p/partialdatacolumnbroadcaster/metrics.go

@@ -1,18 +0,0 @@
-package partialdatacolumnbroadcaster
-
-import (
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promauto"
-)
-
-var (
-	partialMessageUsefulCellsTotal = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "beacon_partial_message_useful_cells_total",
-		Help: "Number of useful cells received via a partial message",
-	}, []string{"column_index"})
-
-	partialMessageCellsReceivedTotal = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "beacon_partial_message_cells_received_total",
-		Help: "Number of total cells received via a partial message",
-	}, []string{"column_index"})
-)

beacon-chain/p2p/partialdatacolumnbroadcaster/partial.go

@@ -1,577 +0,0 @@
-package partialdatacolumnbroadcaster
-
-import (
-	"bytes"
-	"log/slog"
-	"regexp"
-	"strconv"
-	"time"
-
-	"github.com/OffchainLabs/go-bitfield"
-	"github.com/OffchainLabs/prysm/v7/config/params"
-	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
-	"github.com/OffchainLabs/prysm/v7/internal/logrusadapter"
-	ethpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
-	pubsub "github.com/libp2p/go-libp2p-pubsub"
-	"github.com/libp2p/go-libp2p-pubsub/partialmessages"
-	"github.com/libp2p/go-libp2p-pubsub/partialmessages/bitmap"
-	pubsub_pb "github.com/libp2p/go-libp2p-pubsub/pb"
-	"github.com/libp2p/go-libp2p/core/peer"
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
-)
-
-// TODOs:
-// different eager push strategies:
-// - no eager push
-// - full column eager push
-//   - With debouncing - some factor of RTT
-// - eager push missing cells
-
-const TTLInSlots = 3
-const maxConcurrentValidators = 128
-const headerHandledTimeout = time.Second * 1
-
-var dataColumnTopicRegex = regexp.MustCompile(`data_column_sidecar_(\d+)`)
-
-func extractColumnIndexFromTopic(topic string) (uint64, error) {
-	matches := dataColumnTopicRegex.FindStringSubmatch(topic)
-	if len(matches) < 2 {
-		return 0, errors.New("could not extract column index from topic")
-	}
-	return strconv.ParseUint(matches[1], 10, 64)
-}
-
-// HeaderValidator validates a PartialDataColumnHeader.
-// Returns (reject, err) where:
-//   - reject=true, err!=nil: REJECT - peer should be penalized
-//   - reject=false, err!=nil: IGNORE - don't penalize, just ignore
-//   - reject=false, err=nil: valid header
-type HeaderValidator func(header *ethpb.PartialDataColumnHeader) (reject bool, err error)
-type HeaderHandler func(header *ethpb.PartialDataColumnHeader) chan bool
-type ColumnValidator func(cells []blocks.CellProofBundle) error
-
-type PartialColumnBroadcaster struct {
-	logger *logrus.Logger
-
-	ps   *pubsub.PubSub
-	stop chan struct{}
-
-	ValidateHeader HeaderValidator
-	ValidateColumn ColumnValidator
-	HandleColumn   SubHandler
-	HandleHeader   HeaderHandler
-
-	headerHandled map[string]chan bool
-
-	// map topic -> *pubsub.Topic
-	topics map[string]*pubsub.Topic
-
-	concurrentValidatorSemaphore chan struct{}
-
-	// map topic -> map[groupID]PartialColumn
-	partialMsgStore map[string]map[string]*blocks.PartialDataColumn
-
-	groupTTL map[string]int8
-
-	// validHeaderCache caches validated headers by group ID (works across topics)
-	validHeaderCache map[string]*ethpb.PartialDataColumnHeader
-
-	incomingReq chan request
-}
-
-type requestKind uint8
-
-const (
-	requestKindPublish requestKind = iota
-	requestKindSubscribe
-	requestKindUnsubscribe
-	requestKindHandleIncomingRPC
-	requestKindCellsValidated
-)
-
-type request struct {
-	kind           requestKind
-	response       chan error
-	sub            subscribe
-	unsub          unsubscribe
-	publish        publish
-	incomingRPC    rpcWithFrom
-	cellsValidated *cellsValidated
-}
-
-type publish struct {
-	topic string
-	c     blocks.PartialDataColumn
-}
-
-type subscribe struct {
-	t *pubsub.Topic
-}
-
-type unsubscribe struct {
-	topic string
-}
-
-type rpcWithFrom struct {
-	*pubsub_pb.PartialMessagesExtension
-	from peer.ID
-}
-
-type cellsValidated struct {
-	validationTook time.Duration
-	topic          string
-	group          []byte
-	cellIndices    []uint64
-	cells          []blocks.CellProofBundle
-}
-
-func NewBroadcaster(logger *logrus.Logger) *PartialColumnBroadcaster {
-	return &PartialColumnBroadcaster{
-		topics:           make(map[string]*pubsub.Topic),
-		partialMsgStore:  make(map[string]map[string]*blocks.PartialDataColumn),
-		groupTTL:         make(map[string]int8),
-		validHeaderCache: make(map[string]*ethpb.PartialDataColumnHeader),
-		headerHandled:    make(map[string]chan bool),
-		// GossipSub sends the messages to this channel. The buffer should be
-		// big enough to avoid dropping messages. We don't want to block the gossipsub event loop for this.
-		incomingReq: make(chan request, 128*16),
-		logger:      logger,
-
-		concurrentValidatorSemaphore: make(chan struct{}, maxConcurrentValidators),
-	}
-}
-
-// AppendPubSubOpts adds the necessary pubsub options to enable partial messages.
-func (p *PartialColumnBroadcaster) AppendPubSubOpts(opts []pubsub.Option) []pubsub.Option {
-	slogger := slog.New(logrusadapter.Handler{Logger: p.logger})
-	opts = append(opts,
-		pubsub.WithPartialMessagesExtension(&partialmessages.PartialMessagesExtension{
-			Logger: slogger,
-			MergePartsMetadata: func(topic string, left, right partialmessages.PartsMetadata) partialmessages.PartsMetadata {
-				if len(left) == 0 {
-					return right
-				}
-				merged, err := bitfield.Bitlist(left).Or(bitfield.Bitlist(right))
-				if err != nil {
-					p.logger.Warn("Failed to merge bitfields", "err", err, "left", left, "right", right)
-					return left
-				}
-				return partialmessages.PartsMetadata(merged)
-			},
-			ValidateRPC: func(from peer.ID, rpc *pubsub_pb.PartialMessagesExtension) error {
-				// TODO. Add some basic and fast sanity checks
-				return nil
-			},
-			OnIncomingRPC: func(from peer.ID, rpc *pubsub_pb.PartialMessagesExtension) error {
-				select {
-				case p.incomingReq <- request{
-					kind:        requestKindHandleIncomingRPC,
-					incomingRPC: rpcWithFrom{rpc, from},
-				}:
-				default:
-					p.logger.Warn("Dropping incoming partial RPC", "rpc", rpc)
-				}
-				return nil
-			},
-		}),
-		func(ps *pubsub.PubSub) error {
-			p.ps = ps
-			return nil
-		},
-	)
-	return opts
-}
-
-// Start starts the event loop of the PartialColumnBroadcaster. Should be called
-// within a goroutine (go p.Start())
-func (p *PartialColumnBroadcaster) Start() {
-	if p.ValidateHeader == nil {
-		p.logger.Error("No header validator registered")
-		return
-	}
-	if p.HandleHeader == nil {
-		p.logger.Error("No header handler registered")
-		return
-	}
-	if p.ValidateColumn == nil {
-		p.logger.Error("No column validator registered")
-		return
-	}
-
-	if p.HandleColumn == nil {
-		p.logger.Error("No column handler registered")
-		return
-	}
-
-	p.stop = make(chan struct{})
-	p.loop()
-}
-
-func (p *PartialColumnBroadcaster) loop() {
-	cleanup := time.NewTicker(time.Second * time.Duration(params.BeaconConfig().SecondsPerSlot))
-	defer cleanup.Stop()
-	for {
-		select {
-		case <-p.stop:
-			return
-		case <-cleanup.C:
-			for groupID, ttl := range p.groupTTL {
-				if ttl > 0 {
-					p.groupTTL[groupID] = ttl - 1
-					continue
-				}
-
-				delete(p.groupTTL, groupID)
-				delete(p.validHeaderCache, groupID)
-				delete(p.headerHandled, groupID)
-				for topic, msgStore := range p.partialMsgStore {
-					delete(msgStore, groupID)
-					if len(msgStore) == 0 {
-						delete(p.partialMsgStore, topic)
-					}
-				}
-			}
-		case req := <-p.incomingReq:
-			switch req.kind {
-			case requestKindPublish:
-				req.response <- p.publish(req.publish.topic, req.publish.c)
-			case requestKindSubscribe:
-				req.response <- p.subscribe(req.sub.t)
-			case requestKindUnsubscribe:
-				req.response <- p.unsubscribe(req.unsub.topic)
-			case requestKindHandleIncomingRPC:
-				err := p.handleIncomingRPC(req.incomingRPC)
-				if err != nil {
-					p.logger.Error("Failed to handle incoming partial RPC", "err", err)
-				}
-			case requestKindCellsValidated:
-				err := p.handleCellsValidated(req.cellsValidated)
-				if err != nil {
-					p.logger.Error("Failed to handle cells validated", "err", err)
-				}
-			default:
-				p.logger.Error("Unknown request kind", "kind", req.kind)
-			}
-		}
-	}
-}
-
-func (p *PartialColumnBroadcaster) getDataColumn(topic string, group []byte) *blocks.PartialDataColumn {
-	topicStore, ok := p.partialMsgStore[topic]
-	if !ok {
-		return nil
-	}
-	msg, ok := topicStore[string(group)]
-	if !ok {
-		return nil
-	}
-	return msg
-}
-
-func (p *PartialColumnBroadcaster) handleIncomingRPC(rpcWithFrom rpcWithFrom) error {
-	if p.ps == nil {
-		return errors.New("pubsub not initialized")
-	}
-
-	hasMessage := len(rpcWithFrom.PartialMessage) > 0
-
-	var message ethpb.PartialDataColumnSidecar
-	if hasMessage {
-		err := message.UnmarshalSSZ(rpcWithFrom.PartialMessage)
-		if err != nil {
-			return errors.Wrap(err, "failed to unmarshal partial message data")
-		}
-	}
-
-	topicID := rpcWithFrom.GetTopicID()
-	groupID := rpcWithFrom.GroupID
-	ourDataColumn := p.getDataColumn(topicID, groupID)
-	var shouldRepublish bool
-
-	if ourDataColumn == nil && hasMessage {
-		var header *ethpb.PartialDataColumnHeader
-		// Check cache first for this group
-		if cachedHeader, ok := p.validHeaderCache[string(groupID)]; ok {
-			header = cachedHeader
-		} else {
-			// We haven't seen this group before. Check if we have a valid header.
-			if len(message.Header) == 0 {
-				p.logger.Debug("No partial column found and no header in message, ignoring")
-				return nil
-			}
-
-			header = message.Header[0]
-			reject, err := p.ValidateHeader(header)
-			if err != nil {
-				p.logger.Debug("Header validation failed", "err", err, "reject", reject)
-				if reject {
-					// REJECT case: penalize the peer
-					_ = p.ps.PeerFeedback(topicID, rpcWithFrom.from, pubsub.PeerFeedbackInvalidMessage)
-				}
-				// Both REJECT and IGNORE: don't process further
-				return nil
-			}
-			// Cache the valid header
-			p.validHeaderCache[string(groupID)] = header
-			handledCh := p.HandleHeader(header)
-			p.headerHandled[string(groupID)] = handledCh
-		}
-
-		columnIndex, err := extractColumnIndexFromTopic(topicID)
-		if err != nil {
-			return err
-		}
-
-		newColumn, err := blocks.NewPartialDataColumn(
-			header.SignedBlockHeader,
-			columnIndex,
-			header.KzgCommitments,
-			header.KzgCommitmentsInclusionProof,
-		)
-		if err != nil {
-			p.logger.WithError(err).WithFields(logrus.Fields{
-				"topic":          topicID,
-				"columnIndex":    columnIndex,
-				"numCommitments": len(header.KzgCommitments),
-			}).Error("Failed to create partial data column from header")
-			return err
-		}
-
-		// Save to store
-		topicStore, ok := p.partialMsgStore[topicID]
-		if !ok {
-			topicStore = make(map[string]*blocks.PartialDataColumn)
-			p.partialMsgStore[topicID] = topicStore
-		}
-		topicStore[string(newColumn.GroupID())] = &newColumn
-		p.groupTTL[string(newColumn.GroupID())] = TTLInSlots
-
-		ourDataColumn = &newColumn
-		shouldRepublish = true
-	}
-
-	if ourDataColumn == nil {
-		// We don't have a partial column for this. Can happen if we got cells
-		// without a header.
-		return nil
-	}
-
-	logger := p.logger.WithFields(logrus.Fields{
-		"from":  rpcWithFrom.from,
-		"topic": topicID,
-		"group": groupID,
-	})
-
-	if len(rpcWithFrom.PartialMessage) > 0 {
-		// TODO: is there any penalty we want to consider for giving us data we didn't request?
-		// Note that we need to be careful around race conditions and eager data.
-		// Also note that protobufs by design allow extra data that we don't parse.
-		// Marco's thoughts. No, we don't need to do anything else here.
-		cellIndices, cellsToVerify, err := ourDataColumn.CellsToVerifyFromPartialMessage(&message)
-		if err != nil {
-			return err
-		}
-		// Track cells received via partial message
-		if len(cellIndices) > 0 {
-			columnIndexStr := strconv.FormatUint(ourDataColumn.Index, 10)
-			partialMessageCellsReceivedTotal.WithLabelValues(columnIndexStr).Add(float64(len(cellIndices)))
-		}
-		if len(cellsToVerify) > 0 {
-			p.concurrentValidatorSemaphore <- struct{}{}
-			go func() {
-				defer func() {
-					<-p.concurrentValidatorSemaphore
-				}()
-				start := time.Now()
-				err := p.ValidateColumn(cellsToVerify)
-				if err != nil {
-					logger.Error("failed to validate cells", "err", err)
-					_ = p.ps.PeerFeedback(topicID, rpcWithFrom.from, pubsub.PeerFeedbackInvalidMessage)
-					return
-				}
-				_ = p.ps.PeerFeedback(topicID, rpcWithFrom.from, pubsub.PeerFeedbackUsefulMessage)
-				p.incomingReq <- request{
-					kind: requestKindCellsValidated,
-					cellsValidated: &cellsValidated{
-						validationTook: time.Since(start),
-						topic:          topicID,
-						group:          groupID,
-						cells:          cellsToVerify,
-						cellIndices:    cellIndices,
-					},
-				}
-			}()
-		}
-	}
-
-	peerHas := bitmap.Bitmap(rpcWithFrom.PartsMetadata)
-	iHave := bitmap.Bitmap(ourDataColumn.PartsMetadata())
-	if !shouldRepublish && len(peerHas) > 0 && !bytes.Equal(peerHas, iHave) {
-		// Either we have something they don't or vice versa
-		shouldRepublish = true
-		logger.Debug("republishing due to parts metadata difference")
-	}
-
-	headerHandled := p.headerHandled[string(groupID)]
-	if headerHandled != nil {
-		select {
-		case <-headerHandled:
-		case <-time.After(headerHandledTimeout):
-			return errors.New("header not handled in time")
-		}
-	}
-
-	if shouldRepublish {
-		err := p.ps.PublishPartialMessage(topicID, ourDataColumn, partialmessages.PublishOptions{})
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (p *PartialColumnBroadcaster) handleCellsValidated(cells *cellsValidated) error {
-	ourDataColumn := p.getDataColumn(cells.topic, cells.group)
-	if ourDataColumn == nil {
-		return errors.New("data column not found for verified cells")
-	}
-	extended := ourDataColumn.ExtendFromVerfifiedCells(cells.cellIndices, cells.cells)
-	p.logger.Debug("Extended partial message", "duration", cells.validationTook, "extended", extended)
-
-	columnIndexStr := strconv.FormatUint(ourDataColumn.Index, 10)
-	if extended {
-		// Track useful cells (cells that extended our data)
-		partialMessageUsefulCellsTotal.WithLabelValues(columnIndexStr).Add(float64(len(cells.cells)))
-
-		// TODO: we could use the heuristic here that if this data was
-		// useful to us, it's likely useful to our peers and we should
-		// republish eagerly
-
-		if col, ok := ourDataColumn.Complete(p.logger); ok {
-			p.logger.Info("Completed partial column", "topic", cells.topic, "group", cells.group)
-			if p.HandleColumn != nil {
-				go p.HandleColumn(cells.topic, col)
-			}
-		} else {
-			p.logger.Info("Extended partial column", "topic", cells.topic, "group", cells.group)
-		}
-
-		headerHandled := p.headerHandled[string(ourDataColumn.GroupID())]
-		if headerHandled != nil {
-			select {
-			case <-headerHandled:
-			case <-time.After(headerHandledTimeout):
-				return errors.New("header not handled in time")
-			}
-		}
-
-		err := p.ps.PublishPartialMessage(cells.topic, ourDataColumn, partialmessages.PublishOptions{})
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (p *PartialColumnBroadcaster) Stop() {
-	if p.stop != nil {
-		close(p.stop)
-	}
-}
-
-// Publish publishes the partial column.
-func (p *PartialColumnBroadcaster) Publish(topic string, c blocks.PartialDataColumn) error {
-	if p.ps == nil {
-		return errors.New("pubsub not initialized")
-	}
-	respCh := make(chan error)
-	p.incomingReq <- request{
-		kind:     requestKindPublish,
-		response: respCh,
-		publish: publish{
-			topic: topic,
-			c:     c,
-		},
-	}
-	return <-respCh
-}
-
-func (p *PartialColumnBroadcaster) publish(topic string, c blocks.PartialDataColumn) error {
-	topicStore, ok := p.partialMsgStore[topic]
-	if !ok {
-		topicStore = make(map[string]*blocks.PartialDataColumn)
-		p.partialMsgStore[topic] = topicStore
-	}
-
-	var extended bool
-	existing := topicStore[string(c.GroupID())]
-	if existing != nil {
-		// Extend the existing column with cells being published here.
-		// The existing column may already contain cells received from peers. We must not overwrite it.
-		for i := range c.Included.Len() {
-			if c.Included.BitAt(i) {
-				extended = existing.ExtendFromVerfifiedCell(uint64(i), c.Column[i], c.KzgProofs[i])
-			}
-		}
-		if extended {
-			if col, ok := existing.Complete(p.logger); ok {
-				p.logger.Info("Completed partial column", "topic", topic, "group", existing.GroupID())
-				if p.HandleColumn != nil {
-					go p.HandleColumn(topic, col)
-				}
-			}
-		}
-	} else {
-		topicStore[string(c.GroupID())] = &c
-		existing = &c
-	}
-
-	p.groupTTL[string(c.GroupID())] = TTLInSlots
-
-	return p.ps.PublishPartialMessage(topic, existing, partialmessages.PublishOptions{})
-}
-
-type SubHandler func(topic string, col blocks.VerifiedRODataColumn)
-
-func (p *PartialColumnBroadcaster) Subscribe(t *pubsub.Topic) error {
-	respCh := make(chan error)
-	p.incomingReq <- request{
-		kind: requestKindSubscribe,
-		sub: subscribe{
-			t: t,
-		},
-		response: respCh,
-	}
-	return <-respCh
-}
-func (p *PartialColumnBroadcaster) subscribe(t *pubsub.Topic) error {
-	topic := t.String()
-	if _, ok := p.topics[topic]; ok {
-		return errors.New("already subscribed")
-	}
-
-	p.topics[topic] = t
-	return nil
-}
-
-func (p *PartialColumnBroadcaster) Unsubscribe(topic string) error {
-	respCh := make(chan error)
-	p.incomingReq <- request{
-		kind: requestKindUnsubscribe,
-		unsub: unsubscribe{
-			topic: topic,
-		},
-		response: respCh,
-	}
-	return <-respCh
-}
-func (p *PartialColumnBroadcaster) unsubscribe(topic string) error {
-	t, ok := p.topics[topic]
-	if !ok {
-		return errors.New("topic not found")
-	}
-	delete(p.topics, topic)
-	delete(p.partialMsgStore, topic)
-	return t.Close()
-}

beacon-chain/p2p/peers/status_test.go

@@ -58,7 +58,7 @@ func TestPeerExplicitAdd(t *testing.T) {
 
 	resAddress, err := p.Address(id)
 	require.NoError(t, err)
-	assert.Equal(t, address.Equal(resAddress), true, "Unexpected address")
+	assert.Equal(t, address, resAddress, "Unexpected address")
 
 	resDirection, err := p.Direction(id)
 	require.NoError(t, err)
@@ -72,7 +72,7 @@ func TestPeerExplicitAdd(t *testing.T) {
 
 	resAddress2, err := p.Address(id)
 	require.NoError(t, err)
-	assert.Equal(t, address2.Equal(resAddress2), true, "Unexpected address")
+	assert.Equal(t, address2, resAddress2, "Unexpected address")
 
 	resDirection2, err := p.Direction(id)
 	require.NoError(t, err)

beacon-chain/p2p/pubsub.go

@@ -170,7 +170,7 @@ func (s *Service) pubsubOptions() []pubsub.Option {
 		pubsub.WithPeerScore(peerScoringParams(s.cfg.IPColocationWhitelist)),
 		pubsub.WithPeerScoreInspect(s.peerInspector, time.Minute),
 		pubsub.WithGossipSubParams(pubsubGossipParam()),
-		pubsub.WithRawTracer(&gossipTracer{host: s.host, allowedTopics: filt}),
+		pubsub.WithRawTracer(gossipTracer{host: s.host}),
 	}
 
 	if len(s.cfg.StaticPeers) > 0 {
@@ -181,9 +181,6 @@ func (s *Service) pubsubOptions() []pubsub.Option {
 		}
 		psOpts = append(psOpts, pubsub.WithDirectPeers(directPeersAddrInfos))
 	}
-	if s.partialColumnBroadcaster != nil {
-		psOpts = s.partialColumnBroadcaster.AppendPubSubOpts(psOpts)
-	}
 
 	return psOpts
 }

beacon-chain/p2p/pubsub_tracer.go

@@ -1,8 +1,6 @@
 package p2p
 
 import (
-	"sync"
-
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"github.com/libp2p/go-libp2p/core/host"
 	"github.com/libp2p/go-libp2p/core/peer"
@@ -10,7 +8,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 )
 
-var _ = pubsub.RawTracer(&gossipTracer{})
+var _ = pubsub.RawTracer(gossipTracer{})
 
 // Initializes the values for the pubsub rpc action.
 type action int
@@ -25,160 +23,85 @@ const (
 // and broadcasted through gossipsub.
 type gossipTracer struct {
 	host host.Host
-
-	allowedTopics pubsub.SubscriptionFilter
-
-	mu sync.Mutex
-	// map topic -> Set(peerID). Peer is in set if it supports partial messages.
-	partialMessagePeers map[string]map[peer.ID]struct{}
-	// map topic -> Set(peerID). Peer is in set if in the mesh.
-	meshPeers map[string]map[peer.ID]struct{}
 }
 
 // AddPeer .
-func (g *gossipTracer) AddPeer(p peer.ID, proto protocol.ID) {
+func (g gossipTracer) AddPeer(p peer.ID, proto protocol.ID) {
 	// no-op
 }
 
 // RemovePeer .
-func (g *gossipTracer) RemovePeer(p peer.ID) {
+func (g gossipTracer) RemovePeer(p peer.ID) {
-	g.mu.Lock()
+	// no-op
-	defer g.mu.Unlock()
-	for _, peers := range g.partialMessagePeers {
-		delete(peers, p)
-	}
-	for topic, peers := range g.meshPeers {
-		if _, ok := peers[p]; ok {
-			delete(peers, p)
-			g.updateMeshPeersMetric(topic)
-		}
-	}
 }
 
 // Join .
-func (g *gossipTracer) Join(topic string) {
+func (g gossipTracer) Join(topic string) {
 	pubsubTopicsActive.WithLabelValues(topic).Set(1)
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	if g.partialMessagePeers == nil {
-		g.partialMessagePeers = make(map[string]map[peer.ID]struct{})
-	}
-	if g.partialMessagePeers[topic] == nil {
-		g.partialMessagePeers[topic] = make(map[peer.ID]struct{})
-	}
-
-	if g.meshPeers == nil {
-		g.meshPeers = make(map[string]map[peer.ID]struct{})
-	}
-	if g.meshPeers[topic] == nil {
-		g.meshPeers[topic] = make(map[peer.ID]struct{})
-	}
 }
 
 // Leave .
-func (g *gossipTracer) Leave(topic string) {
+func (g gossipTracer) Leave(topic string) {
 	pubsubTopicsActive.WithLabelValues(topic).Set(0)
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	delete(g.partialMessagePeers, topic)
-	delete(g.meshPeers, topic)
 }
 
 // Graft .
-func (g *gossipTracer) Graft(p peer.ID, topic string) {
+func (g gossipTracer) Graft(p peer.ID, topic string) {
 	pubsubTopicsGraft.WithLabelValues(topic).Inc()
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	if m, ok := g.meshPeers[topic]; ok {
-		m[p] = struct{}{}
-	}
-	g.updateMeshPeersMetric(topic)
 }
 
 // Prune .
-func (g *gossipTracer) Prune(p peer.ID, topic string) {
+func (g gossipTracer) Prune(p peer.ID, topic string) {
 	pubsubTopicsPrune.WithLabelValues(topic).Inc()
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	if m, ok := g.meshPeers[topic]; ok {
-		delete(m, p)
-	}
-	g.updateMeshPeersMetric(topic)
 }
 
 // ValidateMessage .
-func (g *gossipTracer) ValidateMessage(msg *pubsub.Message) {
+func (g gossipTracer) ValidateMessage(msg *pubsub.Message) {
 	pubsubMessageValidate.WithLabelValues(*msg.Topic).Inc()
 }
 
 // DeliverMessage .
-func (g *gossipTracer) DeliverMessage(msg *pubsub.Message) {
+func (g gossipTracer) DeliverMessage(msg *pubsub.Message) {
 	pubsubMessageDeliver.WithLabelValues(*msg.Topic).Inc()
 }
 
 // RejectMessage .
-func (g *gossipTracer) RejectMessage(msg *pubsub.Message, reason string) {
+func (g gossipTracer) RejectMessage(msg *pubsub.Message, reason string) {
 	pubsubMessageReject.WithLabelValues(*msg.Topic, reason).Inc()
 }
 
 // DuplicateMessage .
-func (g *gossipTracer) DuplicateMessage(msg *pubsub.Message) {
+func (g gossipTracer) DuplicateMessage(msg *pubsub.Message) {
 	pubsubMessageDuplicate.WithLabelValues(*msg.Topic).Inc()
 }
 
 // UndeliverableMessage .
-func (g *gossipTracer) UndeliverableMessage(msg *pubsub.Message) {
+func (g gossipTracer) UndeliverableMessage(msg *pubsub.Message) {
 	pubsubMessageUndeliverable.WithLabelValues(*msg.Topic).Inc()
 }
 
 // ThrottlePeer .
-func (g *gossipTracer) ThrottlePeer(p peer.ID) {
+func (g gossipTracer) ThrottlePeer(p peer.ID) {
 	agent := agentFromPid(p, g.host.Peerstore())
 	pubsubPeerThrottle.WithLabelValues(agent).Inc()
 }
 
 // RecvRPC .
-func (g *gossipTracer) RecvRPC(rpc *pubsub.RPC) {
+func (g gossipTracer) RecvRPC(rpc *pubsub.RPC) {
-	from := rpc.From()
+	g.setMetricFromRPC(recv, pubsubRPCSubRecv, pubsubRPCPubRecv, pubsubRPCRecv, rpc)
-	g.setMetricFromRPC(recv, pubsubRPCSubRecv, pubsubRPCPubRecv, pubsubRPCPubRecvSize, pubsubRPCRecv, rpc)
-
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	for _, sub := range rpc.Subscriptions {
-		topic := sub.GetTopicid()
-		if !g.allowedTopics.CanSubscribe(topic) {
-			continue
-		}
-		if g.partialMessagePeers == nil {
-			g.partialMessagePeers = make(map[string]map[peer.ID]struct{})
-		}
-		m, ok := g.partialMessagePeers[topic]
-		if !ok {
-			m = make(map[peer.ID]struct{})
-			g.partialMessagePeers[topic] = m
-		}
-		if sub.GetSubscribe() && sub.GetRequestsPartial() {
-			m[from] = struct{}{}
-		} else {
-			delete(m, from)
-			if len(m) == 0 {
-				delete(g.partialMessagePeers, topic)
-			}
-		}
-	}
 }
 
 // SendRPC .
-func (g *gossipTracer) SendRPC(rpc *pubsub.RPC, p peer.ID) {
+func (g gossipTracer) SendRPC(rpc *pubsub.RPC, p peer.ID) {
-	g.setMetricFromRPC(send, pubsubRPCSubSent, pubsubRPCPubSent, pubsubRPCPubSentSize, pubsubRPCSent, rpc)
+	g.setMetricFromRPC(send, pubsubRPCSubSent, pubsubRPCPubSent, pubsubRPCSent, rpc)
 }
 
 // DropRPC .
-func (g *gossipTracer) DropRPC(rpc *pubsub.RPC, p peer.ID) {
+func (g gossipTracer) DropRPC(rpc *pubsub.RPC, p peer.ID) {
-	g.setMetricFromRPC(drop, pubsubRPCSubDrop, pubsubRPCPubDrop, pubsubRPCPubDropSize, pubsubRPCDrop, rpc)
+	g.setMetricFromRPC(drop, pubsubRPCSubDrop, pubsubRPCPubDrop, pubsubRPCDrop, rpc)
 }
 
-func (g *gossipTracer) setMetricFromRPC(act action, subCtr prometheus.Counter, pubCtr, pubSizeCtr, ctrlCtr *prometheus.CounterVec, rpc *pubsub.RPC) {
+func (g gossipTracer) setMetricFromRPC(act action, subCtr prometheus.Counter, pubCtr, ctrlCtr *prometheus.CounterVec, rpc *pubsub.RPC) {
 	subCtr.Add(float64(len(rpc.Subscriptions)))
 	if rpc.Control != nil {
 		ctrlCtr.WithLabelValues("graft").Add(float64(len(rpc.Control.Graft)))
@@ -187,41 +110,12 @@ func (g *gossipTracer) setMetricFromRPC(act action, subCtr prometheus.Counter, p
 		ctrlCtr.WithLabelValues("iwant").Add(float64(len(rpc.Control.Iwant)))
 		ctrlCtr.WithLabelValues("idontwant").Add(float64(len(rpc.Control.Idontwant)))
 	}
-	// For incoming messages from pubsub, we do not record metrics for them as these values
-	// could be junk.
-	if act == recv {
-		return
-	}
 	for _, msg := range rpc.Publish {
-		pubCtr.WithLabelValues(msg.GetTopic()).Inc()
+		// For incoming messages from pubsub, we do not record metrics for them as these values
-		pubSizeCtr.WithLabelValues(msg.GetTopic(), "false").Add(float64(msg.Size()))
+		// could be junk.
-	}
+		if act == recv {
-	if rpc.Partial != nil {
+			continue
-		pubCtr.WithLabelValues(rpc.Partial.GetTopicID()).Inc()
-		pubSizeCtr.WithLabelValues(rpc.Partial.GetTopicID(), "true").Add(float64(rpc.Partial.Size()))
-	}
-}
-
-// updateMeshPeersMetric requires the caller to hold the state mutex
-func (g *gossipTracer) updateMeshPeersMetric(topic string) {
-	meshPeers, ok := g.meshPeers[topic]
-	if !ok {
-		return
-	}
-	partialPeers, ok := g.partialMessagePeers[topic]
-	if !ok {
-		return
-	}
-
-	var supportsPartial, doesNotSupportPartial float64
-	for p := range meshPeers {
-		if _, ok := partialPeers[p]; ok {
-			supportsPartial++
-		} else {
-			doesNotSupportPartial++
 		}
+		pubCtr.WithLabelValues(*msg.Topic).Inc()
 	}
-
-	pubsubMeshPeers.WithLabelValues(topic, "true").Set(supportsPartial)
-	pubsubMeshPeers.WithLabelValues(topic, "false").Set(doesNotSupportPartial)
 }

beacon-chain/p2p/service.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/OffchainLabs/prysm/v7/async"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/encoder"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers/scorers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/types"
@@ -78,7 +77,6 @@ type Service struct {
 	privKey                  *ecdsa.PrivateKey
 	metaData                 metadata.Metadata
 	pubsub                   *pubsub.PubSub
-	partialColumnBroadcaster *partialdatacolumnbroadcaster.PartialColumnBroadcaster
 	joinedTopics             map[string]*pubsub.Topic
 	joinedTopicsLock         sync.RWMutex
 	subnetsLock              map[uint64]*sync.RWMutex
@@ -149,10 +147,6 @@ func NewService(ctx context.Context, cfg *Config) (*Service, error) {
 		custodyInfoSet:        make(chan struct{}),
 	}
 
-	if cfg.PartialDataColumns {
-		s.partialColumnBroadcaster = partialdatacolumnbroadcaster.NewBroadcaster(log.Logger)
-	}
-
 	ipAddr := prysmnetwork.IPAddr()
 
 	opts, err := s.buildOptions(ipAddr, s.privKey)
@@ -311,10 +305,6 @@ func (s *Service) Start() {
 		logExternalDNSAddr(s.host.ID(), p2pHostDNS, p2pTCPPort)
 	}
 	go s.forkWatcher()
-
-	if s.partialColumnBroadcaster != nil {
-		go s.partialColumnBroadcaster.Start()
-	}
 }
 
 // Stop the p2p service and terminate all peer connections.
@@ -324,10 +314,6 @@ func (s *Service) Stop() error {
 	if s.dv5Listener != nil {
 		s.dv5Listener.Close()
 	}
-
-	if s.partialColumnBroadcaster != nil {
-		s.partialColumnBroadcaster.Stop()
-	}
 	return nil
 }
 
@@ -364,10 +350,6 @@ func (s *Service) PubSub() *pubsub.PubSub {
 	return s.pubsub
 }
 
-func (s *Service) PartialColumnBroadcaster() *partialdatacolumnbroadcaster.PartialColumnBroadcaster {
-	return s.partialColumnBroadcaster
-}
-
 // Host returns the currently running libp2p
 // host of the service.
 func (s *Service) Host() host.Host {

beacon-chain/p2p/testing/BUILD.bazel

@@ -21,7 +21,6 @@ go_library(
     deps = [
         "//beacon-chain/core/peerdas:go_default_library",
         "//beacon-chain/p2p/encoder:go_default_library",
-        "//beacon-chain/p2p/partialdatacolumnbroadcaster:go_default_library",
         "//beacon-chain/p2p/peers:go_default_library",
         "//beacon-chain/p2p/peers/scorers:go_default_library",
         "//config/fieldparams:go_default_library",

beacon-chain/p2p/testing/fuzz_p2p.go

@@ -4,7 +4,6 @@ import (
 	"context"
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/encoder"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
@@ -109,10 +108,6 @@ func (*FakeP2P) PubSub() *pubsub.PubSub {
 	return nil
 }
 
-func (*FakeP2P) PartialColumnBroadcaster() *partialdatacolumnbroadcaster.PartialColumnBroadcaster {
-	return nil
-}
-
 // MetadataSeq -- fake.
 func (*FakeP2P) MetadataSeq() uint64 {
 	return 0
@@ -174,7 +169,7 @@ func (*FakeP2P) BroadcastLightClientFinalityUpdate(_ context.Context, _ interfac
 }
 
 // BroadcastDataColumnSidecar -- fake.
-func (*FakeP2P) BroadcastDataColumnSidecars(_ context.Context, _ []blocks.VerifiedRODataColumn, _ []blocks.PartialDataColumn) error {
+func (*FakeP2P) BroadcastDataColumnSidecars(_ context.Context, _ []blocks.VerifiedRODataColumn) error {
 	return nil
 }
 

beacon-chain/p2p/testing/mock_broadcaster.go

@@ -63,7 +63,7 @@ func (m *MockBroadcaster) BroadcastLightClientFinalityUpdate(_ context.Context,
 }
 
 // BroadcastDataColumnSidecar broadcasts a data column for mock.
-func (m *MockBroadcaster) BroadcastDataColumnSidecars(context.Context, []blocks.VerifiedRODataColumn, []blocks.PartialDataColumn) error {
+func (m *MockBroadcaster) BroadcastDataColumnSidecars(context.Context, []blocks.VerifiedRODataColumn) error {
 	m.BroadcastCalled.Store(true)
 	return nil
 }

beacon-chain/p2p/testing/p2p.go

@@ -13,7 +13,6 @@ import (
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/encoder"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers/scorers"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
@@ -139,6 +138,9 @@ func connect(a, b host.Host) error {
 func (p *TestP2P) ReceiveRPC(topic string, msg proto.Message) {
 	h, err := libp2p.New(libp2p.ResourceManager(&network.NullResourceManager{}))
 	require.NoError(p.t, err)
+	p.t.Cleanup(func() {
+		require.NoError(p.t, h.Close())
+	})
 	if err := connect(h, p.BHost); err != nil {
 		p.t.Fatalf("Failed to connect two peers for RPC: %v", err)
 	}
@@ -170,6 +172,9 @@ func (p *TestP2P) ReceiveRPC(topic string, msg proto.Message) {
 func (p *TestP2P) ReceivePubSub(topic string, msg proto.Message) {
 	h, err := libp2p.New(libp2p.ResourceManager(&network.NullResourceManager{}))
 	require.NoError(p.t, err)
+	p.t.Cleanup(func() {
+		require.NoError(p.t, h.Close())
+	})
 	ps, err := pubsub.NewFloodSub(context.Background(), h,
 		pubsub.WithMessageSigning(false),
 		pubsub.WithStrictSignatureVerification(false),
@@ -243,7 +248,7 @@ func (p *TestP2P) BroadcastLightClientFinalityUpdate(_ context.Context, _ interf
 }
 
 // BroadcastDataColumnSidecar broadcasts a data column for mock.
-func (p *TestP2P) BroadcastDataColumnSidecars(context.Context, []blocks.VerifiedRODataColumn, []blocks.PartialDataColumn) error {
+func (p *TestP2P) BroadcastDataColumnSidecars(context.Context, []blocks.VerifiedRODataColumn) error {
 	p.BroadcastCalled.Store(true)
 	return nil
 }
@@ -309,10 +314,6 @@ func (p *TestP2P) PubSub() *pubsub.PubSub {
 	return p.pubsub
 }
 
-func (p *TestP2P) PartialColumnBroadcaster() *partialdatacolumnbroadcaster.PartialColumnBroadcaster {
-	return nil
-}
-
 // Disconnect from a peer.
 func (p *TestP2P) Disconnect(pid peer.ID) error {
 	return p.BHost.Network().ClosePeer(pid)

beacon-chain/rpc/endpoints.go

@@ -405,6 +405,7 @@ func (s *Service) nodeEndpoints() []endpoint {
 		MetadataProvider:          s.cfg.MetadataProvider,
 		HeadFetcher:               s.cfg.HeadFetcher,
 		ExecutionChainInfoFetcher: s.cfg.ExecutionChainInfoFetcher,
+		ExecutionEngineCaller:     s.cfg.ExecutionEngineCaller,
 	}
 
 	const namespace = "node"
@@ -469,6 +470,16 @@ func (s *Service) nodeEndpoints() []endpoint {
 			handler: server.GetVersion,
 			methods: []string{http.MethodGet},
 		},
+		{
+			template: "/eth/v2/node/version",
+			name:     namespace + ".GetVersionV2",
+			middleware: []middleware.Middleware{
+				middleware.AcceptHeaderHandler([]string{api.JsonMediaType}),
+				middleware.AcceptEncodingHeaderHandler(),
+			},
+			handler: server.GetVersionV2,
+			methods: []string{http.MethodGet},
+		},
 		{
 			template: "/eth/v1/node/health",
 			name:     namespace + ".GetHealth",

beacon-chain/rpc/endpoints_test.go

@@ -86,6 +86,7 @@ func Test_endpoints(t *testing.T) {
 		"/eth/v1/node/peers/{peer_id}": {http.MethodGet},
 		"/eth/v1/node/peer_count":      {http.MethodGet},
 		"/eth/v1/node/version":         {http.MethodGet},
+		"/eth/v2/node/version":         {http.MethodGet},
 		"/eth/v1/node/syncing":         {http.MethodGet},
 		"/eth/v1/node/health":          {http.MethodGet},
 	}

beacon-chain/rpc/eth/node/BUILD.bazel

@@ -5,6 +5,7 @@ go_library(
     srcs = [
         "handlers.go",
         "handlers_peers.go",
+        "log.go",
         "server.go",
     ],
     importpath = "github.com/OffchainLabs/prysm/v7/beacon-chain/rpc/eth/node",
@@ -30,6 +31,7 @@ go_library(
         "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",
         "@com_github_libp2p_go_libp2p//core/peer:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
+        "@com_github_sirupsen_logrus//:go_default_library",
         "@org_golang_google_grpc//:go_default_library",
     ],
 )
@@ -44,6 +46,7 @@ go_test(
     deps = [
         "//api/server/structs:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
+        "//beacon-chain/execution/testing:go_default_library",
         "//beacon-chain/p2p:go_default_library",
         "//beacon-chain/p2p/peers:go_default_library",
         "//beacon-chain/p2p/testing:go_default_library",

beacon-chain/rpc/eth/node/handlers.go

@@ -116,6 +116,35 @@ func (*Server) GetVersion(w http.ResponseWriter, r *http.Request) {
 	httputil.WriteJson(w, resp)
 }
 
+// GetVersionV2 Retrieves structured information about the version of the beacon node and its attached
+// execution client(s) in the same format as used on the Engine API
+func (s *Server) GetVersionV2(w http.ResponseWriter, r *http.Request) {
+	ctx, span := trace.StartSpan(r.Context(), "node.GetVersionV2")
+	defer span.End()
+
+	elDataList, err := s.ExecutionEngineCaller.GetClientVersionV1(ctx)
+	if err != nil {
+		log.WithError(err).WithField("endpoint", "GetVersionV2").Debug("Could not get execution client version")
+	}
+
+	commit := version.GitCommit()
+	if len(commit) >= 8 {
+		commit = commit[:8]
+	}
+	resp := &structs.GetVersionV2Response{
+		Data: &structs.VersionV2{
+			BeaconNode: &structs.ClientVersionV1{
+				Code:    "PM",
+				Name:    "Prysm",
+				Version: version.SemanticVersion(),
+				Commit:  commit,
+			},
+			ExecutionClient: elDataList,
+		},
+	}
+	httputil.WriteJson(w, resp)
+}
+
 // GetHealth returns node health status in http status codes. Useful for load balancers.
 func (s *Server) GetHealth(w http.ResponseWriter, r *http.Request) {
 	ctx, span := trace.StartSpan(r.Context(), "node.GetHealth")

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

@@ -12,6 +12,7 @@ import (
 	"github.com/OffchainLabs/go-bitfield"
 	"github.com/OffchainLabs/prysm/v7/api/server/structs"
 	mock "github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain/testing"
+	mockengine "github.com/OffchainLabs/prysm/v7/beacon-chain/execution/testing"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p"
 	mockp2p "github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/testing"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/rpc/testutil"
@@ -90,6 +91,41 @@ func TestGetVersion(t *testing.T) {
 	assert.StringContains(t, arch, resp.Data.Version)
 }
 
+func TestGetVersionV2(t *testing.T) {
+	request := httptest.NewRequest(http.MethodGet, "http://example.com/eth/v2/node/version", nil)
+	writer := httptest.NewRecorder()
+	writer.Body = &bytes.Buffer{}
+
+	s := &Server{
+		ExecutionEngineCaller: &mockengine.EngineClient{
+			ClientVersion: []*structs.ClientVersionV1{{
+				Code:    "EL",
+				Name:    "ExecutionClient",
+				Version: "v1.0.0",
+				Commit:  "abcdef12",
+			}},
+		},
+	}
+	s.GetVersionV2(writer, request)
+	require.Equal(t, http.StatusOK, writer.Code)
+
+	resp := &structs.GetVersionV2Response{}
+	require.NoError(t, json.Unmarshal(writer.Body.Bytes(), resp))
+	require.NotNil(t, resp)
+	require.NotNil(t, resp.Data)
+	require.NotNil(t, resp.Data.BeaconNode)
+	require.NotNil(t, resp.Data.ExecutionClient)
+	e := resp.Data.ExecutionClient[0]
+	require.Equal(t, "EL", e.Code)
+	require.Equal(t, "ExecutionClient", e.Name)
+	require.Equal(t, "v1.0.0", e.Version)
+	require.Equal(t, "abcdef12", e.Commit)
+	require.Equal(t, "PM", resp.Data.BeaconNode.Code)
+	require.Equal(t, "Prysm", resp.Data.BeaconNode.Name)
+	require.Equal(t, version.SemanticVersion(), resp.Data.BeaconNode.Version)
+	require.Equal(t, true, len(resp.Data.BeaconNode.Commit) <= 8)
+}
+
 func TestGetHealth(t *testing.T) {
 	checker := &syncmock.Sync{}
 	optimisticFetcher := &mock.ChainService{Optimistic: false}

beacon-chain/rpc/eth/node/log.go

@@ -1,9 +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 logrusadapter
+package node
 
 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", "internal/logrusadapter")
+var log = logrus.WithField("package", "beacon-chain/rpc/eth/node")

beacon-chain/rpc/eth/node/server.go

@@ -26,4 +26,5 @@ type Server struct {
 	GenesisTimeFetcher        blockchain.TimeFetcher
 	HeadFetcher               blockchain.HeadFetcher
 	ExecutionChainInfoFetcher execution.ChainInfoFetcher
+	ExecutionEngineCaller     execution.EngineCaller
 }

beacon-chain/rpc/prysm/v1alpha1/validator/proposer.go

@@ -7,7 +7,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/OffchainLabs/go-bitfield"
 	builderapi "github.com/OffchainLabs/prysm/v7/api/client/builder"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/blockchain"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/builder"
@@ -309,7 +308,6 @@ func (vs *Server) ProposeBeaconBlock(ctx context.Context, req *ethpb.GenericSign
 	}
 
 	rob, err := blocks.NewROBlockWithRoot(block, root)
-	var partialColumns []blocks.PartialDataColumn
 	if block.IsBlinded() {
 		block, blobSidecars, err = vs.handleBlindedBlock(ctx, block)
 		if errors.Is(err, builderapi.ErrBadGateway) {
@@ -317,7 +315,7 @@ func (vs *Server) ProposeBeaconBlock(ctx context.Context, req *ethpb.GenericSign
 			return &ethpb.ProposeResponse{BlockRoot: root[:]}, nil
 		}
 	} else if block.Version() >= version.Deneb {
-		blobSidecars, dataColumnSidecars, partialColumns, err = vs.handleUnblindedBlock(rob, req)
+		blobSidecars, dataColumnSidecars, err = vs.handleUnblindedBlock(rob, req)
 	}
 	if err != nil {
 		return nil, status.Errorf(codes.Internal, "%s: %v", "handle block failed", err)
@@ -337,7 +335,7 @@ func (vs *Server) ProposeBeaconBlock(ctx context.Context, req *ethpb.GenericSign
 
 	wg.Wait()
 
-	if err := vs.broadcastAndReceiveSidecars(ctx, block, root, blobSidecars, dataColumnSidecars, partialColumns); err != nil {
+	if err := vs.broadcastAndReceiveSidecars(ctx, block, root, blobSidecars, dataColumnSidecars); err != nil {
 		return nil, status.Errorf(codes.Internal, "Could not broadcast/receive sidecars: %v", err)
 	}
 	if err := <-errChan; err != nil {
@@ -354,10 +352,9 @@ func (vs *Server) broadcastAndReceiveSidecars(
 	root [fieldparams.RootLength]byte,
 	blobSidecars []*ethpb.BlobSidecar,
 	dataColumnSidecars []blocks.RODataColumn,
-	partialColumns []blocks.PartialDataColumn,
 ) error {
 	if block.Version() >= version.Fulu {
-		if err := vs.broadcastAndReceiveDataColumns(ctx, dataColumnSidecars, partialColumns); err != nil {
+		if err := vs.broadcastAndReceiveDataColumns(ctx, dataColumnSidecars); err != nil {
 			return errors.Wrap(err, "broadcast and receive data columns")
 		}
 		return nil
@@ -406,41 +403,34 @@ func (vs *Server) handleBlindedBlock(ctx context.Context, block interfaces.Signe
 func (vs *Server) handleUnblindedBlock(
 	block blocks.ROBlock,
 	req *ethpb.GenericSignedBeaconBlock,
-) ([]*ethpb.BlobSidecar, []blocks.RODataColumn, []blocks.PartialDataColumn, error) {
+) ([]*ethpb.BlobSidecar, []blocks.RODataColumn, error) {
 	rawBlobs, proofs, err := blobsAndProofs(req)
 	if err != nil {
-		return nil, nil, nil, err
+		return nil, nil, err
 	}
 
 	if block.Version() >= version.Fulu {
 		// Compute cells and proofs from the blobs and cell proofs.
 		cellsPerBlob, proofsPerBlob, err := peerdas.ComputeCellsAndProofsFromFlat(rawBlobs, proofs)
 		if err != nil {
-			return nil, nil, nil, errors.Wrap(err, "compute cells and proofs")
+			return nil, nil, errors.Wrap(err, "compute cells and proofs")
 		}
 
 		// Construct data column sidecars from the signed block and cells and proofs.
 		roDataColumnSidecars, err := peerdas.DataColumnSidecars(cellsPerBlob, proofsPerBlob, peerdas.PopulateFromBlock(block))
 		if err != nil {
-			return nil, nil, nil, errors.Wrap(err, "data column sidcars")
+			return nil, nil, errors.Wrap(err, "data column sidcars")
 		}
 
-		included := bitfield.NewBitlist(uint64(len(cellsPerBlob)))
+		return nil, roDataColumnSidecars, nil
-		included = included.Not() // all bits set to 1
-		partialColumns, err := peerdas.PartialColumns(included, cellsPerBlob, proofsPerBlob, peerdas.PopulateFromBlock(block))
-		if err != nil {
-			return nil, nil, nil, errors.Wrap(err, "data column sidcars")
-		}
-
-		return nil, roDataColumnSidecars, partialColumns, nil
 	}
 
 	blobSidecars, err := BuildBlobSidecars(block, rawBlobs, proofs)
 	if err != nil {
-		return nil, nil, nil, errors.Wrap(err, "build blob sidecars")
+		return nil, nil, errors.Wrap(err, "build blob sidecars")
 	}
 
-	return blobSidecars, nil, nil, nil
+	return blobSidecars, nil, nil
 }
 
 // broadcastReceiveBlock broadcasts a block and handles its reception.
@@ -507,7 +497,7 @@ func (vs *Server) broadcastAndReceiveBlobs(ctx context.Context, sidecars []*ethp
 }
 
 // broadcastAndReceiveDataColumns handles the broadcasting and reception of data columns sidecars.
-func (vs *Server) broadcastAndReceiveDataColumns(ctx context.Context, roSidecars []blocks.RODataColumn, partialColumns []blocks.PartialDataColumn) error {
+func (vs *Server) broadcastAndReceiveDataColumns(ctx context.Context, roSidecars []blocks.RODataColumn) error {
 	// We built this block ourselves, so we can upgrade the read only data column sidecar into a verified one.
 	verifiedSidecars := make([]blocks.VerifiedRODataColumn, 0, len(roSidecars))
 	for _, sidecar := range roSidecars {
@@ -516,7 +506,7 @@ func (vs *Server) broadcastAndReceiveDataColumns(ctx context.Context, roSidecars
 	}
 
 	// Broadcast sidecars (non blocking).
-	if err := vs.P2P.BroadcastDataColumnSidecars(ctx, verifiedSidecars, partialColumns); err != nil {
+	if err := vs.P2P.BroadcastDataColumnSidecars(ctx, verifiedSidecars); err != nil {
 		return errors.Wrap(err, "broadcast data column sidecars")
 	}
 

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

@@ -46,14 +46,20 @@ func (b *BeaconState) BuilderPubkey(builderIndex primitives.BuilderIndex) ([fiel
 }
 
 // IsActiveBuilder returns true if the builder placement is finalized and it has not initiated exit.
-// Spec v1.7.0-alpha.0 (pseudocode):
-// def is_active_builder(state: BeaconState, builder_index: BuilderIndex) -> bool:
 //
-//	builder = state.builders[builder_index]
+//	<spec fn="is_active_builder" fork="gloas" hash="1a599fb2">
-//	return (
+//	def is_active_builder(state: BeaconState, builder_index: BuilderIndex) -> bool:
-//	    builder.deposit_epoch < state.finalized_checkpoint.epoch
+//	    """
-//	    and builder.withdrawable_epoch == FAR_FUTURE_EPOCH
+//	    Check if the builder at ``builder_index`` is active for the given ``state``.
-//	)
+//	    """
+//	    builder = state.builders[builder_index]
+//	    return (
+//	        # Placement in builder list is finalized
+//	        builder.deposit_epoch < state.finalized_checkpoint.epoch
+//	        # Has not initiated exit
+//	        and builder.withdrawable_epoch == FAR_FUTURE_EPOCH
+//	    )
+//	</spec>
 func (b *BeaconState) IsActiveBuilder(builderIndex primitives.BuilderIndex) (bool, error) {
 	if b.version < version.Gloas {
 		return false, errNotSupported("IsActiveBuilder", b.version)
@@ -72,15 +78,18 @@ func (b *BeaconState) IsActiveBuilder(builderIndex primitives.BuilderIndex) (boo
 }
 
 // CanBuilderCoverBid returns true if the builder has enough balance to cover the given bid amount.
-// Spec v1.7.0-alpha.0 (pseudocode):
-// def can_builder_cover_bid(state: BeaconState, builder_index: BuilderIndex, bid_amount: Gwei) -> bool:
 //
-//	builder_balance = state.builders[builder_index].balance
+//	<spec fn="can_builder_cover_bid" fork="gloas" hash="9e3f2d7c">
-//	pending_withdrawals_amount = get_pending_balance_to_withdraw_for_builder(state, builder_index)
+//	def can_builder_cover_bid(
-//	min_balance = MIN_DEPOSIT_AMOUNT + pending_withdrawals_amount
+//	    state: BeaconState, builder_index: BuilderIndex, bid_amount: Gwei
-//	if builder_balance < min_balance:
+//	) -> bool:
-//	    return False
+//	    builder_balance = state.builders[builder_index].balance
-//	return builder_balance - min_balance >= bid_amount
+//	    pending_withdrawals_amount = get_pending_balance_to_withdraw_for_builder(state, builder_index)
+//	    min_balance = MIN_DEPOSIT_AMOUNT + pending_withdrawals_amount
+//	    if builder_balance < min_balance:
+//	        return False
+//	    return builder_balance - min_balance >= bid_amount
+//	</spec>
 func (b *BeaconState) CanBuilderCoverBid(builderIndex primitives.BuilderIndex, bidAmount primitives.Gwei) (bool, error) {
 	if b.version < version.Gloas {
 		return false, errNotSupported("CanBuilderCoverBid", b.version)

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

@@ -82,20 +82,20 @@ func (b *BeaconState) SetExecutionPayloadBid(h interfaces.ROExecutionPayloadBid)
 	parentBlockRoot := h.ParentBlockRoot()
 	blockHash := h.BlockHash()
 	randao := h.PrevRandao()
-	blobKzgCommitmentsRoot := h.BlobKzgCommitmentsRoot()
+	blobKzgCommitments := h.BlobKzgCommitments()
 	feeRecipient := h.FeeRecipient()
 	b.latestExecutionPayloadBid = &ethpb.ExecutionPayloadBid{
-		ParentBlockHash:        parentBlockHash[:],
+		ParentBlockHash:    parentBlockHash[:],
-		ParentBlockRoot:        parentBlockRoot[:],
+		ParentBlockRoot:    parentBlockRoot[:],
-		BlockHash:              blockHash[:],
+		BlockHash:          blockHash[:],
-		PrevRandao:             randao[:],
+		PrevRandao:         randao[:],
-		GasLimit:               h.GasLimit(),
+		GasLimit:           h.GasLimit(),
-		BuilderIndex:           h.BuilderIndex(),
+		BuilderIndex:       h.BuilderIndex(),
-		Slot:                   h.Slot(),
+		Slot:               h.Slot(),
-		Value:                  h.Value(),
+		Value:              h.Value(),
-		ExecutionPayment:       h.ExecutionPayment(),
+		ExecutionPayment:   h.ExecutionPayment(),
-		BlobKzgCommitmentsRoot: blobKzgCommitmentsRoot[:],
+		BlobKzgCommitments: blobKzgCommitments,
-		FeeRecipient:           feeRecipient[:],
+		FeeRecipient:       feeRecipient[:],
 	}
 	b.markFieldAsDirty(types.LatestExecutionPayloadBid)
 

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

@@ -14,17 +14,17 @@ import (
 )
 
 type testExecutionPayloadBid struct {
-	parentBlockHash        [32]byte
+	parentBlockHash    [32]byte
-	parentBlockRoot        [32]byte
+	parentBlockRoot    [32]byte
-	blockHash              [32]byte
+	blockHash          [32]byte
-	prevRandao             [32]byte
+	prevRandao         [32]byte
-	blobKzgCommitmentsRoot [32]byte
+	blobKzgCommitments [][]byte
-	feeRecipient           [20]byte
+	feeRecipient       [20]byte
-	gasLimit               uint64
+	gasLimit           uint64
-	builderIndex           primitives.BuilderIndex
+	builderIndex       primitives.BuilderIndex
-	slot                   primitives.Slot
+	slot               primitives.Slot
-	value                  primitives.Gwei
+	value              primitives.Gwei
-	executionPayment       primitives.Gwei
+	executionPayment   primitives.Gwei
 }
 
 func (t testExecutionPayloadBid) ParentBlockHash() [32]byte { return t.parentBlockHash }
@@ -40,9 +40,12 @@ func (t testExecutionPayloadBid) Value() primitives.Gwei { return t.value }
 func (t testExecutionPayloadBid) ExecutionPayment() primitives.Gwei {
 	return t.executionPayment
 }
-func (t testExecutionPayloadBid) BlobKzgCommitmentsRoot() [32]byte { return t.blobKzgCommitmentsRoot }
+func (t testExecutionPayloadBid) BlobKzgCommitments() [][]byte { return t.blobKzgCommitments }
-func (t testExecutionPayloadBid) FeeRecipient() [20]byte           { return t.feeRecipient }
+func (t testExecutionPayloadBid) BlobKzgCommitmentCount() uint64 {
-func (t testExecutionPayloadBid) IsNil() bool                      { return false }
+	return uint64(len(t.blobKzgCommitments))
+}
+func (t testExecutionPayloadBid) FeeRecipient() [20]byte { return t.feeRecipient }
+func (t testExecutionPayloadBid) IsNil() bool            { return false }
 
 func TestSetExecutionPayloadBid(t *testing.T) {
 	t.Run("previous fork returns expected error", func(t *testing.T) {
@@ -57,7 +60,7 @@ func TestSetExecutionPayloadBid(t *testing.T) {
 			parentBlockRoot = [32]byte(bytes.Repeat([]byte{0xCD}, 32))
 			blockHash       = [32]byte(bytes.Repeat([]byte{0xEF}, 32))
 			prevRandao      = [32]byte(bytes.Repeat([]byte{0x11}, 32))
-			blobRoot        = [32]byte(bytes.Repeat([]byte{0x22}, 32))
+			blobCommitments = [][]byte{bytes.Repeat([]byte{0x22}, 48)}
 			feeRecipient    [20]byte
 		)
 		copy(feeRecipient[:], bytes.Repeat([]byte{0x33}, len(feeRecipient)))
@@ -66,17 +69,17 @@ func TestSetExecutionPayloadBid(t *testing.T) {
 			dirtyFields: make(map[types.FieldIndex]bool),
 		}
 		bid := testExecutionPayloadBid{
-			parentBlockHash:        parentBlockHash,
+			parentBlockHash:    parentBlockHash,
-			parentBlockRoot:        parentBlockRoot,
+			parentBlockRoot:    parentBlockRoot,
-			blockHash:              blockHash,
+			blockHash:          blockHash,
-			prevRandao:             prevRandao,
+			prevRandao:         prevRandao,
-			blobKzgCommitmentsRoot: blobRoot,
+			blobKzgCommitments: blobCommitments,
-			feeRecipient:           feeRecipient,
+			feeRecipient:       feeRecipient,
-			gasLimit:               123,
+			gasLimit:           123,
-			builderIndex:           7,
+			builderIndex:       7,
-			slot:                   9,
+			slot:               9,
-			value:                  11,
+			value:              11,
-			executionPayment:       22,
+			executionPayment:   22,
 		}
 
 		require.NoError(t, st.SetExecutionPayloadBid(bid))
@@ -86,7 +89,7 @@ func TestSetExecutionPayloadBid(t *testing.T) {
 		require.DeepEqual(t, parentBlockRoot[:], st.latestExecutionPayloadBid.ParentBlockRoot)
 		require.DeepEqual(t, blockHash[:], st.latestExecutionPayloadBid.BlockHash)
 		require.DeepEqual(t, prevRandao[:], st.latestExecutionPayloadBid.PrevRandao)
-		require.DeepEqual(t, blobRoot[:], st.latestExecutionPayloadBid.BlobKzgCommitmentsRoot)
+		require.DeepEqual(t, blobCommitments, st.latestExecutionPayloadBid.BlobKzgCommitments)
 		require.DeepEqual(t, feeRecipient[:], st.latestExecutionPayloadBid.FeeRecipient)
 		require.Equal(t, uint64(123), st.latestExecutionPayloadBid.GasLimit)
 		require.Equal(t, primitives.BuilderIndex(7), st.latestExecutionPayloadBid.BuilderIndex)

beacon-chain/sync/BUILD.bazel

@@ -58,7 +58,6 @@ go_library(
         "validate_bls_to_execution_change.go",
         "validate_data_column.go",
         "validate_light_client.go",
-        "validate_partial_header.go",
         "validate_proposer_slashing.go",
         "validate_sync_committee_message.go",
         "validate_sync_contribution_proof.go",
@@ -99,7 +98,6 @@ go_library(
         "//beacon-chain/operations/voluntaryexits:go_default_library",
         "//beacon-chain/p2p:go_default_library",
         "//beacon-chain/p2p/encoder:go_default_library",
-        "//beacon-chain/p2p/partialdatacolumnbroadcaster:go_default_library",
         "//beacon-chain/p2p/peers:go_default_library",
         "//beacon-chain/p2p/types:go_default_library",
         "//beacon-chain/slasher/types:go_default_library",

beacon-chain/sync/batch_verifier.go

@@ -2,10 +2,8 @@ package sync
 
 import (
 	"context"
-	"iter"
 	"time"
 
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
 	"github.com/OffchainLabs/prysm/v7/crypto/bls"
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing"
@@ -21,16 +19,9 @@ type signatureVerifier struct {
 	resChan chan error
 }
 
-type errorWithSegment struct {
-	err error
-	// segment is only available if the batched verification failed
-	segment peerdas.CellProofBundleSegment
-}
-
 type kzgVerifier struct {
-	sizeHint   int
+	dataColumns []blocks.RODataColumn
-	cellProofs iter.Seq[blocks.CellProofBundle]
+	resChan     chan error
-	resChan    chan errorWithSegment
 }
 
 // A routine that runs in the background to perform batch

beacon-chain/sync/metrics.go

@@ -256,16 +256,6 @@ var (
 			Help: "Count the number of data column sidecars obtained via the execution layer.",
 		},
 	)
-
-	usefulFullColumnsReceivedTotal = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "beacon_useful_full_columns_received_total",
-		Help: "Number of useful full columns (any cell being useful) received",
-	}, []string{"column_index"})
-
-	partialMessageColumnCompletionsTotal = promauto.NewCounterVec(prometheus.CounterOpts{
-		Name: "beacon_partial_message_column_completions_total",
-		Help: "How often the partial message first completed the column",
-	}, []string{"column_index"})
 )
 
 func (s *Service) updateMetrics() {

beacon-chain/sync/subscriber.go

@@ -5,8 +5,6 @@ import (
 	"fmt"
 	"reflect"
 	"runtime/debug"
-	"slices"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -16,13 +14,11 @@ import (
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/partialdatacolumnbroadcaster"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p/peers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/startup"
 	"github.com/OffchainLabs/prysm/v7/cmd/beacon-chain/flags"
 	"github.com/OffchainLabs/prysm/v7/config/features"
 	"github.com/OffchainLabs/prysm/v7/config/params"
-	"github.com/OffchainLabs/prysm/v7/consensus-types/blocks"
 	"github.com/OffchainLabs/prysm/v7/consensus-types/primitives"
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing"
 	"github.com/OffchainLabs/prysm/v7/monitoring/tracing/trace"
@@ -65,12 +61,6 @@ type subscribeParameters struct {
 	// getSubnetsRequiringPeers is a function that returns all subnets that require peers to be found
 	// but for which no subscriptions are needed.
 	getSubnetsRequiringPeers func(currentSlot primitives.Slot) map[uint64]bool
-
-	partial *partialSubscribeParameters
-}
-
-type partialSubscribeParameters struct {
-	broadcaster *partialdatacolumnbroadcaster.PartialColumnBroadcaster
 }
 
 // shortTopic is a less verbose version of topic strings used for logging.
@@ -330,55 +320,6 @@ func (s *Service) registerSubscribers(nse params.NetworkScheduleEntry) bool {
 	// New gossip topic in Fulu.
 	if params.BeaconConfig().FuluForkEpoch <= nse.Epoch {
 		s.spawn(func() {
-			var ps *partialSubscribeParameters
-			broadcaster := s.cfg.p2p.PartialColumnBroadcaster()
-			if broadcaster != nil {
-				broadcaster.ValidateHeader = func(header *ethpb.PartialDataColumnHeader) (bool, error) {
-					return s.validatePartialDataColumnHeader(context.TODO(), header)
-				}
-				broadcaster.ValidateColumn = func(cellsToVerify []blocks.CellProofBundle) error {
-					return peerdas.VerifyDataColumnsCellsKZGProofs(len(cellsToVerify), slices.Values(cellsToVerify))
-				}
-				broadcaster.HandleColumn = func(topic string, col blocks.VerifiedRODataColumn) {
-					ctx, cancel := context.WithTimeout(s.ctx, pubsubMessageTimeout)
-					defer cancel()
-
-					slot := col.SignedBlockHeader.Header.Slot
-					proposerIndex := col.SignedBlockHeader.Header.ProposerIndex
-					if !s.hasSeenDataColumnIndex(slot, proposerIndex, col.Index) {
-						s.setSeenDataColumnIndex(slot, proposerIndex, col.Index)
-						// This column was completed from a partial message.
-						partialMessageColumnCompletionsTotal.WithLabelValues(strconv.FormatUint(col.Index, 10)).Inc()
-					}
-					err := s.verifiedRODataColumnSubscriber(ctx, col)
-					if err != nil {
-						log.WithError(err).Error("Failed to handle verified RO data column subscriber")
-					}
-				}
-				broadcaster.HandleHeader = func(header *ethpb.PartialDataColumnHeader) chan bool {
-					ctx, cancel := context.WithTimeout(s.ctx, pubsubMessageTimeout)
-					defer cancel()
-					source := peerdas.PopulateFromPartialHeader(header)
-					log.WithField("slot", source.Slot()).Info("Received data column header")
-
-					doneCh := make(chan bool, 1)
-
-					// we spin up a goroutine to process the partial column header recieved via Gossipsub as handling this
-					// header involves going to the EL, retrieving blobs and then publishing the partial columns constructed from the blobs.
-					// The partial publishing needs access to the broadcaster event loop and so doing the below without a goroutine can potentially cause a deadlock.
-					go func() {
-						err := s.processDataColumnSidecarsFromExecution(ctx, source)
-						if err != nil {
-							log.WithError(err).Error("Failed to process partial data column header")
-						}
-						close(doneCh)
-					}()
-					return doneCh
-				}
-				ps = &partialSubscribeParameters{
-					broadcaster: broadcaster,
-				}
-			}
 			s.subscribeWithParameters(subscribeParameters{
 				topicFormat:              p2p.DataColumnSubnetTopicFormat,
 				validate:                 s.validateDataColumn,
@@ -386,7 +327,6 @@ func (s *Service) registerSubscribers(nse params.NetworkScheduleEntry) bool {
 				nse:                      nse,
 				getSubnetsToJoin:         s.dataColumnSubnetIndices,
 				getSubnetsRequiringPeers: s.allDataColumnSubnets,
-				partial:                  ps,
 			})
 		})
 	}
@@ -425,10 +365,11 @@ func (s *Service) subscribe(topic string, validator wrappedVal, handle subHandle
 		// Impossible condition as it would mean topic does not exist.
 		panic(fmt.Sprintf("%s is not mapped to any message in GossipTopicMappings", topic)) // lint:nopanic -- Impossible condition.
 	}
-	s.subscribeWithBase(s.addDigestToTopic(topic, nse.ForkDigest)+s.cfg.p2p.Encoding().ProtocolSuffix(), validator, handle)
+	s.subscribeWithBase(s.addDigestToTopic(topic, nse.ForkDigest), validator, handle)
 }
 
 func (s *Service) subscribeWithBase(topic string, validator wrappedVal, handle subHandler) *pubsub.Subscription {
+	topic += s.cfg.p2p.Encoding().ProtocolSuffix()
 	log := log.WithField("topic", topic)
 
 	// Do not resubscribe already seen subscriptions.
@@ -591,11 +532,7 @@ func (s *Service) wrapAndReportValidation(topic string, v wrappedVal) (string, p
 func (s *Service) pruneNotWanted(t *subnetTracker, wantedSubnets map[uint64]bool) {
 	for _, subnet := range t.unwanted(wantedSubnets) {
 		t.cancelSubscription(subnet)
-		topic := t.fullTopic(subnet, s.cfg.p2p.Encoding().ProtocolSuffix())
+		s.unSubscribeFromTopic(t.fullTopic(subnet, s.cfg.p2p.Encoding().ProtocolSuffix()))
-		if t.partial != nil {
-			_ = t.partial.broadcaster.Unsubscribe(topic)
-		}
-		s.unSubscribeFromTopic(topic)
 	}
 }
 
@@ -642,34 +579,9 @@ func (s *Service) trySubscribeSubnets(t *subnetTracker) {
 	subnetsToJoin := t.getSubnetsToJoin(s.cfg.clock.CurrentSlot())
 	s.pruneNotWanted(t, subnetsToJoin)
 	for _, subnet := range t.missing(subnetsToJoin) {
-		topicStr := t.fullTopic(subnet, s.cfg.p2p.Encoding().ProtocolSuffix())
+		// TODO: subscribeWithBase appends the protocol suffix, other methods don't. Make this consistent.
-		topicOpts := make([]pubsub.TopicOpt, 0, 2)
+		topic := t.fullTopic(subnet, "")
-
+		t.track(subnet, s.subscribeWithBase(topic, t.validate, t.handle))
-		requestPartial := t.partial != nil
-
-		if requestPartial {
-			// TODO: do we want the ability to support partial messages without requesting them?
-			topicOpts = append(topicOpts, pubsub.RequestPartialMessages())
-		}
-
-		topic, err := s.cfg.p2p.JoinTopic(topicStr, topicOpts...)
-		if err != nil {
-			log.WithError(err).Error("Failed to join topic")
-			return
-		}
-
-		if requestPartial {
-			log.Info("Subscribing to partial columns on", topicStr)
-			err = t.partial.broadcaster.Subscribe(topic)
-
-			if err != nil {
-				log.WithError(err).Error("Failed to subscribe to partial column")
-			}
-		}
-
-		// We still need to subscribe to the full columns as well as partial in
-		// case our peers don't support partial messages.
-		t.track(subnet, s.subscribeWithBase(topicStr, t.validate, t.handle))
 	}
 }
 

beacon-chain/sync/subscriber_beacon_blocks.go

@@ -11,7 +11,6 @@ import (
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/transition/interop"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/p2p"
 	"github.com/OffchainLabs/prysm/v7/config/features"
 	fieldparams "github.com/OffchainLabs/prysm/v7/config/fieldparams"
 	"github.com/OffchainLabs/prysm/v7/config/params"
@@ -202,16 +201,6 @@ func (s *Service) processDataColumnSidecarsFromExecution(ctx context.Context, so
 			return nil, errors.Wrap(err, "column indices to sample")
 		}
 
-		// TODO: the deadline here was removed in https://github.com/OffchainLabs/prysm/pull/16155/files
-		// make sure that reintroducing it does not cause issues.
-		secondsPerHalfSlot := time.Duration(params.BeaconConfig().SecondsPerSlot/2) * time.Second
-		ctx, cancel := context.WithTimeout(ctx, secondsPerHalfSlot)
-		defer cancel()
-
-		digest, err := s.currentForkDigest()
-		if err != nil {
-			return nil, err
-		}
 		log := log.WithFields(logrus.Fields{
 			"root":          fmt.Sprintf("%#x", source.Root()),
 			"slot":          source.Slot(),
@@ -242,30 +231,11 @@ func (s *Service) processDataColumnSidecarsFromExecution(ctx context.Context, so
 			}
 
 			// Try to reconstruct data column constructedSidecars from the execution client.
-			constructedSidecars, partialColumns, err := s.cfg.executionReconstructor.ConstructDataColumnSidecars(ctx, source)
+			constructedSidecars, err := s.cfg.executionReconstructor.ConstructDataColumnSidecars(ctx, source)
 			if err != nil {
 				return nil, errors.Wrap(err, "reconstruct data column sidecars")
 			}
 
-			partialBroadcaster := s.cfg.p2p.PartialColumnBroadcaster()
-			if partialBroadcaster != nil {
-				log.WithField("len(partialColumns)", len(partialColumns)).Debug("Publishing partial columns")
-				for i := range uint64(len(partialColumns)) {
-					if !columnIndicesToSample[i] {
-						continue
-					}
-					subnet := peerdas.ComputeSubnetForDataColumnSidecar(i)
-					topic := fmt.Sprintf(p2p.DataColumnSubnetTopicFormat, digest, subnet) + s.cfg.p2p.Encoding().ProtocolSuffix()
-					// Publish the partial column. This is idempotent if we republish the same data twice.
-					// Note, the "partial column" may indeed be complete. We still
-					// should publish to help our peers.
-					err = partialBroadcaster.Publish(topic, partialColumns[i])
-					if err != nil {
-						log.WithError(err).Warn("Failed to publish partial column")
-					}
-				}
-			}
-
 			// No sidecars are retrieved from the EL, retry later
 			constructedCount := uint64(len(constructedSidecars))
 
@@ -337,7 +307,7 @@ func (s *Service) broadcastAndReceiveUnseenDataColumnSidecars(
 	}
 
 	// Broadcast all the data column sidecars we reconstructed but did not see via gossip (non blocking).
-	if err := s.cfg.p2p.BroadcastDataColumnSidecars(ctx, unseenSidecars, nil); err != nil {
+	if err := s.cfg.p2p.BroadcastDataColumnSidecars(ctx, unseenSidecars); err != nil {
 		return nil, errors.Wrap(err, "broadcast data column sidecars")
 	}
 

beacon-chain/sync/subscriber_data_column_sidecar.go

@@ -3,7 +3,6 @@ package sync
 import (
 	"context"
 	"fmt"
-	"strconv"
 
 	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/feed"
 	opfeed "github.com/OffchainLabs/prysm/v7/beacon-chain/core/feed/operation"
@@ -25,13 +24,6 @@ func (s *Service) dataColumnSubscriber(ctx context.Context, msg proto.Message) e
 		return fmt.Errorf("message was not type blocks.VerifiedRODataColumn, type=%T", msg)
 	}
 
-	// Track useful full columns received via gossip (not previously seen)
-	slot := sidecar.SignedBlockHeader.Header.Slot
-	proposerIndex := sidecar.SignedBlockHeader.Header.ProposerIndex
-	if !s.hasSeenDataColumnIndex(slot, proposerIndex, sidecar.Index) {
-		usefulFullColumnsReceivedTotal.WithLabelValues(strconv.FormatUint(sidecar.Index, 10)).Inc()
-	}
-
 	if err := s.receiveDataColumnSidecar(ctx, sidecar); err != nil {
 		return wrapDataColumnError(sidecar, "receive data column sidecar", err)
 	}
@@ -65,38 +57,6 @@ func (s *Service) dataColumnSubscriber(ctx context.Context, msg proto.Message) e
 	return nil
 }
 
-func (s *Service) verifiedRODataColumnSubscriber(ctx context.Context, sidecar blocks.VerifiedRODataColumn) error {
-	log.WithField("slot", sidecar.Slot()).WithField("column", sidecar.Index).Info("Received data column sidecar")
-
-	if err := s.receiveDataColumnSidecar(ctx, sidecar); err != nil {
-		return errors.Wrap(err, "receive data column sidecar")
-	}
-
-	var wg errgroup.Group
-	wg.Go(func() error {
-		if err := s.processDataColumnSidecarsFromReconstruction(ctx, sidecar); err != nil {
-			return errors.Wrap(err, "process data column sidecars from reconstruction")
-		}
-
-		return nil
-	})
-
-	wg.Go(func() error {
-		// Broadcast our complete column for peers that don't use partial messages
-		if err := s.cfg.p2p.BroadcastDataColumnSidecars(ctx, []blocks.VerifiedRODataColumn{sidecar}, nil); err != nil {
-			return errors.Wrap(err, "process data column sidecars from execution")
-		}
-
-		return nil
-	})
-
-	if err := wg.Wait(); err != nil {
-		return err
-	}
-
-	return nil
-}
-
 // receiveDataColumnSidecar receives a single data column sidecar: marks it as seen and saves it to the chain.
 // Do not loop over this function to receive multiple sidecars, use receiveDataColumnSidecars instead.
 func (s *Service) receiveDataColumnSidecar(ctx context.Context, sidecar blocks.VerifiedRODataColumn) error {

beacon-chain/sync/validate_data_column.go

@@ -71,7 +71,6 @@ func (s *Service) validateDataColumn(ctx context.Context, pid peer.ID, msg *pubs
 	roDataColumns := []blocks.RODataColumn{roDataColumn}
 
 	// Create the verifier.
-	// Question(marco): Do we want the multiple columns verifier? Is batching used only for kzg proofs?
 	verifier := s.newColumnsVerifier(roDataColumns, verification.GossipDataColumnSidecarRequirements)
 
 	// Start the verification process.

beacon-chain/sync/validate_partial_header.go

@@ -1,143 +0,0 @@
-package sync
-
-import (
-	"context"
-
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/helpers"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/peerdas"
-	"github.com/OffchainLabs/prysm/v7/beacon-chain/core/signing"
-	"github.com/OffchainLabs/prysm/v7/config/params"
-	"github.com/OffchainLabs/prysm/v7/encoding/bytesutil"
-	ethpb "github.com/OffchainLabs/prysm/v7/proto/prysm/v1alpha1"
-	"github.com/OffchainLabs/prysm/v7/time/slots"
-	"github.com/pkg/errors"
-)
-
-var (
-	// REJECT errors - peer should be penalized
-	errHeaderEmptyCommitments       = errors.New("header has no kzg commitments")
-	errHeaderParentInvalid          = errors.New("header parent invalid")
-	errHeaderSlotNotAfterParent     = errors.New("header slot not after parent")
-	errHeaderNotFinalizedDescendant = errors.New("header not finalized descendant")
-	errHeaderInvalidInclusionProof  = errors.New("invalid inclusion proof")
-	errHeaderInvalidSignature       = errors.New("invalid proposer signature")
-	errHeaderUnexpectedProposer     = errors.New("unexpected proposer index")
-
-	// IGNORE errors - don't penalize peer
-	errHeaderNil               = errors.New("nil header")
-	errHeaderFromFuture        = errors.New("header is from future slot")
-	errHeaderNotAboveFinalized = errors.New("header slot not above finalized")
-	errHeaderParentNotSeen     = errors.New("header parent not seen")
-)
-
-// validatePartialDataColumnHeader validates a PartialDataColumnHeader per the consensus spec.
-// Returns (reject, err) where reject=true means the peer should be penalized.
-// TODO: we should consolidate this with the existing DataColumn validation pipeline.
-func (s *Service) validatePartialDataColumnHeader(ctx context.Context, header *ethpb.PartialDataColumnHeader) (reject bool, err error) {
-	if header == nil || header.SignedBlockHeader == nil || header.SignedBlockHeader.Header == nil {
-		return false, errHeaderNil // IGNORE
-	}
-
-	blockHeader := header.SignedBlockHeader.Header
-	headerSlot := blockHeader.Slot
-	parentRoot := bytesutil.ToBytes32(blockHeader.ParentRoot)
-
-	// [REJECT] kzg_commitments list is non-empty
-	if len(header.KzgCommitments) == 0 {
-		return true, errHeaderEmptyCommitments
-	}
-
-	// [IGNORE] Not from future slot (with MAXIMUM_GOSSIP_CLOCK_DISPARITY allowance)
-	currentSlot := s.cfg.clock.CurrentSlot()
-	if headerSlot > currentSlot {
-		maxDisparity := params.BeaconConfig().MaximumGossipClockDisparityDuration()
-		slotStart, err := s.cfg.clock.SlotStart(headerSlot)
-		if err != nil {
-			return false, err
-		}
-		if s.cfg.clock.Now().Before(slotStart.Add(-maxDisparity)) {
-			return false, errHeaderFromFuture // IGNORE
-		}
-	}
-
-	// [IGNORE] Slot above finalized
-	finalizedCheckpoint := s.cfg.chain.FinalizedCheckpt()
-	startSlot, err := slots.EpochStart(finalizedCheckpoint.Epoch)
-	if err != nil {
-		return false, err
-	}
-	if headerSlot <= startSlot {
-		return false, errHeaderNotAboveFinalized // IGNORE
-	}
-
-	// [IGNORE] Parent has been seen
-	if !s.cfg.chain.HasBlock(ctx, parentRoot) {
-		return false, errHeaderParentNotSeen // IGNORE
-	}
-
-	// [REJECT] Parent passes validation (not a bad block)
-	if s.hasBadBlock(parentRoot) {
-		return true, errHeaderParentInvalid
-	}
-
-	// [REJECT] Header slot > parent slot
-	parentSlot, err := s.cfg.chain.RecentBlockSlot(parentRoot)
-	if err != nil {
-		return false, errors.Wrap(err, "get parent slot")
-	}
-	if headerSlot <= parentSlot {
-		return true, errHeaderSlotNotAfterParent
-	}
-
-	// [REJECT] Finalized checkpoint is ancestor (parent is in forkchoice)
-	if !s.cfg.chain.InForkchoice(parentRoot) {
-		return true, errHeaderNotFinalizedDescendant
-	}
-
-	// [REJECT] Inclusion proof valid
-	if err := peerdas.VerifyPartialDataColumnHeaderInclusionProof(header); err != nil {
-		return true, errHeaderInvalidInclusionProof
-	}
-
-	// [REJECT] Valid proposer signature
-	parentState, err := s.cfg.stateGen.StateByRoot(ctx, parentRoot)
-	if err != nil {
-		return false, errors.Wrap(err, "get parent state")
-	}
-
-	proposerIdx := blockHeader.ProposerIndex
-	proposer, err := parentState.ValidatorAtIndex(proposerIdx)
-	if err != nil {
-		return false, errors.Wrap(err, "get proposer")
-	}
-
-	domain, err := signing.Domain(
-		parentState.Fork(),
-		slots.ToEpoch(headerSlot),
-		params.BeaconConfig().DomainBeaconProposer,
-		parentState.GenesisValidatorsRoot(),
-	)
-	if err != nil {
-		return false, errors.Wrap(err, "get domain")
-	}
-
-	if err := signing.VerifyBlockHeaderSigningRoot(
-		blockHeader,
-		proposer.PublicKey,
-		header.SignedBlockHeader.Signature,
-		domain,
-	); err != nil {
-		return true, errHeaderInvalidSignature
-	}
-
-	// [REJECT] Expected proposer for slot
-	expectedProposer, err := helpers.BeaconProposerIndexAtSlot(ctx, parentState, headerSlot)
-	if err != nil {
-		return false, errors.Wrap(err, "compute expected proposer")
-	}
-	if expectedProposer != proposerIdx {
-		return true, errHeaderUnexpectedProposer
-	}
-
-	return false, nil // Valid header
-}

beacon-chain/verification/initializer.go

@@ -78,21 +78,11 @@ func (ini *Initializer) NewBlobVerifier(b blocks.ROBlob, reqs []Requirement) *RO
 // WARNING: The returned verifier is not thread-safe, and should not be used concurrently.
 func (ini *Initializer) NewDataColumnsVerifier(roDataColumns []blocks.RODataColumn, reqs []Requirement) *RODataColumnsVerifier {
 	return &RODataColumnsVerifier{
-		sharedResources: ini.shared,
+		sharedResources:             ini.shared,
-		dataColumns:     roDataColumns,
+		dataColumns:                 roDataColumns,
-		results:         newResults(reqs...),
+		results:                     newResults(reqs...),
-		verifyDataColumnsCommitment: func(rc []blocks.RODataColumn) error {
+		verifyDataColumnsCommitment: peerdas.VerifyDataColumnsSidecarKZGProofs,
-			if len(rc) == 0 {
+		stateByRoot:                 make(map[[fieldparams.RootLength]byte]state.BeaconState),
-				return nil
-			}
-			var sizeHint int
-			if len(rc) > 0 {
-				sizeHint = len(rc[0].Column)
-			}
-			sizeHint *= len(rc)
-			return peerdas.VerifyDataColumnsCellsKZGProofs(sizeHint, blocks.RODataColumnsToCellProofBundles(rc))
-		},
-		stateByRoot: make(map[[fieldparams.RootLength]byte]state.BeaconState),
 	}
 }
 

changelog/bastin_fix-genlogs-gitignore-bug.md

@@ -0,0 +1,3 @@
+### Fixed
+
+- Fixed a bug where `cmd/beacon-chain/execution` was being ignored by `hack/gen-logs.sh` due to a `.gitignore` rule.

changelog/bastin_fix-logging-issue.md

@@ -0,0 +1,3 @@
+### Changed
+
+- Fixed the logging issue described in #16314.

changelog/bastin_get-version-v2.md

@@ -0,0 +1,3 @@
+### Added
+
+- New beacon API endpoint `eth/v2/node/version`.