feat: Update builder payload value with boost factor

ethpandaops · Nov 6, 2024 · 3f735fe · 3f735fe
1 parent 92504b1
commit 3f735fe
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Showing 2 changed files with 11 additions and 5 deletions.
diff --git a/pkg/proto/eth/block.go b/pkg/proto/eth/block.go
@@ -44,13 +44,13 @@ func NewEventBlockV2FromVersionSignedBeaconBlock(block *spec.VersionedSignedBeac
 	case spec.DataVersionPhase0:
 		data = NewEventBlockFromPhase0(block.Phase0.Message, &block.Phase0.Signature)
 	case spec.DataVersionAltair:
-		data = NewEventBlockFromAltair(block.Altair.Message, &block.Phase0.Signature)
+		data = NewEventBlockFromAltair(block.Altair.Message, &block.Altair.Signature)
 	case spec.DataVersionBellatrix:
-		data = NewEventBlockFromBellatrix(block.Bellatrix.Message, &block.Phase0.Signature)
+		data = NewEventBlockFromBellatrix(block.Bellatrix.Message, &block.Bellatrix.Signature)
 	case spec.DataVersionCapella:
-		data = NewEventBlockFromCapella(block.Capella.Message, &block.Phase0.Signature)
+		data = NewEventBlockFromCapella(block.Capella.Message, &block.Capella.Signature)
 	case spec.DataVersionDeneb:
-		data = NewEventBlockFromDeneb(block.Deneb.Message, &block.Phase0.Signature)
+		data = NewEventBlockFromDeneb(block.Deneb.Message, &block.Deneb.Signature)
 	default:
 		return nil, fmt.Errorf("unsupported block version: %v", block.Version)
 	}

diff --git a/pkg/sentry/proposed_validator_block.go b/pkg/sentry/proposed_validator_block.go
@@ -75,9 +75,14 @@ func (s *Sentry) fetchValidatorBlock(ctx context.Context) (*v2.ValidatorBlock, e
 		return nil, fmt.Errorf("unexpected service client type, expected: eth2client.ProposalProvider, got %T", s.beacon.Node().Service())
 	}
 
+	// Percentage multiplier to apply to the builder's payload value when choosing between a builder payload header
+	// and payload from the paired execution node.
+	// See https://ethereum.github.io/beacon-APIs/#/Validator/produceBlockV3
+	boostFactor := uint64(0)
+
 	// RandaoReveal must be set to the point at infinity (0xc0..00) if we're skipping Randao verification.
 	rsp, err := provider.Proposal(ctx, &api.ProposalOpts{
-		Slot: phase0.Slot(slot.Number()),
+		Slot: phase0.Slot(slot.Number() + 1),
 		RandaoReveal: phase0.BLSSignature{
 			0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -87,6 +92,7 @@ func (s *Sentry) fetchValidatorBlock(ctx context.Context) (*v2.ValidatorBlock, e
 			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 		},
 		SkipRandaoVerification: true,
+		BuilderBoostFactor:     &boostFactor,
 	})
 	if err != nil {
 		s.log.WithError(err).Error("Failed to get proposal")