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Update state transition for spec v1.7.0-alpha.14 #841

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Merged
pk910 merged 2 commits into from
Aug 20, 2026
Merged

Update state transition for spec v1.7.0-alpha.14 #841

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157c3d4
updates for spec `v1.7.0-alpha.14`
pk910 Aug 20, 2026
9c31744
fix(db): drop dead argIdx assignment flagged by staticcheck (SA4006)
pk910 Aug 20, 2026
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1 change: 0 additions & 1 deletion db/slots.go
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Original file line number Diff line number Diff line change
Expand Up @@ -610,7 +610,6 @@ func GetFilteredSlots(ctx context.Context, filter *dbtypes.BlockFilter, firstSlo

fmt.Fprintf(&sql, ` ORDER BY slots.slot DESC `)
fmt.Fprintf(&sql, ` LIMIT $%v OFFSET $%v `, argIdx+1, argIdx+2)
argIdx += 2
args = append(args, limit)
args = append(args, offset)

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6 changes: 6 additions & 0 deletions indexer/beacon/statetransition/builder.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
package statetransition

import (
"math"

"github.com/ethpandaops/go-eth2-client/spec"
"github.com/ethpandaops/go-eth2-client/spec/gloas"
"github.com/ethpandaops/go-eth2-client/spec/phase0"
Expand All @@ -17,6 +19,10 @@ const (
BuilderPaymentQuorumPercent = 100.0 * BuilderPaymentThresholdNumerator / BuilderPaymentThresholdDenominator
)

// BuilderIndexSelfBuild is BUILDER_INDEX_SELF_BUILD: the sentinel builder index marking a bid that
// the proposer built itself rather than buying from a builder.
const BuilderIndexSelfBuild = gloas.BuilderIndex(math.MaxUint64)

// processBuilderPendingPayments implements process_builder_pending_payments (Gloas).
// Evaluates the first SLOTS_PER_EPOCH entries of BuilderPendingPayments against
// the quorum threshold. Qualifying payments are promoted to BuilderPendingWithdrawals.
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16 changes: 13 additions & 3 deletions indexer/beacon/statetransition/fork.go
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Expand Up @@ -5,6 +5,7 @@ import (
"github.com/ethpandaops/go-eth2-client/spec/all"
"github.com/ethpandaops/go-eth2-client/spec/bellatrix"
"github.com/ethpandaops/go-eth2-client/spec/capella"
"github.com/ethpandaops/go-eth2-client/spec/deneb"
"github.com/ethpandaops/go-eth2-client/spec/electra"
"github.com/ethpandaops/go-eth2-client/spec/gloas"
"github.com/ethpandaops/go-eth2-client/spec/phase0"
Expand Down Expand Up @@ -87,21 +88,30 @@ func upgradeToGloas(s *stateAccessor) []*electra.PendingDeposit {
s.BuilderPendingPayments = payments
s.BuilderPendingWithdrawals = make([]*gloas.BuilderPendingWithdrawal, 0)

// [New in Gloas:EIP7732] latest_execution_payload_bid seeded from the header, with the root of
// an empty ExecutionRequests. A HTR failure leaves a zero root (best effort; only affects the
// state root used to short-circuit later replays, never the extracted field values).
// [New in Gloas:EIP7732] latest_execution_payload_bid seeded from the pre-state's execution
// payload header and block header, marked as a self-build, with the root of an empty
// ExecutionRequests. A HTR failure leaves a zero root (best effort; only affects the state root
// used to short-circuit later replays, never the extracted field values).
var execRequestsRoot phase0.Root
if root, err := s.dynSsz.HashTreeRoot(&all.ExecutionRequests{Version: spec.DataVersionGloas}); err == nil {
execRequestsRoot = phase0.Root(root)
}
bid := &all.ExecutionPayloadBid{
Version: spec.DataVersionGloas,
BuilderIndex: BuilderIndexSelfBuild,
BlobKZGCommitments: make([]deneb.KZGCommitment, 0),
ExecutionRequestsRoot: execRequestsRoot,
}
if header != nil {
bid.ParentBlockHash = header.ParentHash
bid.BlockHash = header.BlockHash
bid.PrevRandao = phase0.Root(header.PrevRandao)
bid.GasLimit = header.GasLimit
}
if s.LatestBlockHeader != nil {
bid.ParentBlockRoot = s.LatestBlockHeader.ParentRoot
bid.Slot = s.LatestBlockHeader.Slot
}
s.LatestExecutionPayloadBid = bid
s.PayloadExpectedWithdrawals = make([]*capella.Withdrawal, 0)

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10 changes: 6 additions & 4 deletions indexer/beacon/statetransition/operations.go
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Expand Up @@ -443,6 +443,7 @@ func processAttestation(s *stateAccessor, att *all.Attestation, cc *committeeCac
continue
}

hadNoParticipation := participation[index] == 0
willSetNewFlag := false
for fi := 0; fi < 3; fi++ {
if !participationFlags[fi] {
Expand All @@ -456,10 +457,11 @@ func processAttestation(s *stateAccessor, att *all.Attestation, cc *committeeCac
}

// Gloas: each validator contributes its effective balance to the
// builder payment weight at most once per slot, when it first sets a
// new flag on a same-slot attestation. Only counted when the slot
// actually has a builder payment with non-zero amount.
if willSetNewFlag && sameSlot && builderPayment != nil &&
// builder payment weight at most once per slot, when it sets a new flag
// on a same-slot attestation while holding no prior flags for that
// epoch. Only counted when the slot actually has a builder payment with
// non-zero amount.
if willSetNewFlag && hadNoParticipation && sameSlot && builderPayment != nil &&
builderPayment.Withdrawal != nil && builderPayment.Withdrawal.Amount > 0 {
builderPayment.Weight += s.Validators[index].EffectiveBalance
}
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