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Add support for capturing aggregate attestations alongside single attestations. Aggregate attestations are broadcast on the `attestation` beacon API events topic and produce the same `BEACON_API_ETH_V1_EVENTS_ATTESTATION_V2` event type, but with populated `aggregation_bits`. Key differences from single attestations: - Uses *spec.VersionedAttestation instead of *electra.SingleAttestation - No subnet filtering (aggregates are broadcast globally) - Aggregation bits are hex-encoded in the output - No AttestingValidator metadata (aggregates represent multiple validators) Both TopicSingleAttestation and TopicAggregateAttestation share the same opt-in condition - if single attestation is enabled, aggregates are also enabled.
- Enable attestation subnet checking in the integration test - Add verification that attestation events (single or aggregate) are being captured - Increase timeout from 60s to 90s to allow for attestation events
Not all consensus clients emit attestation events at the same rate. Some clients may not have validators assigned during the test window. Make attestation verification optional to avoid flaky test failures.
The ethereum-package starlark code now uses 'depends_on' parameter for store_service_files which requires a newer Kurtosis version.
mattevans
approved these changes
Jan 19, 2026
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Summary
attestationbeacon API events topicBEACON_API_ETH_V1_EVENTS_ATTESTATION_V2event type but with populatedaggregation_bitsKey Differences from Single Attestations
*electra.SingleAttestation*spec.VersionedAttestationsingle_attestationattestationOnSingleAttestation()OnAttestation()Test plan
go build ./...golangci-lint run --new-from-rev="origin/master"go test -race ./...