11684b0da0
Implementation:
- payload_envelope_verification: implement the AvailabilityPending branch
in the envelope import flow. Previously returned
InternalError("Pending payload envelope not yet implemented") for any
envelope whose data columns hadn't yet been received, blocking the
end-to-end RPC import path. New `import_pending_execution_payload_envelope`
marks the payload as received in fork choice and persists the envelope to
the store; columns are still expected to arrive separately (gossip /
engineGetBlobs / reconstruction) and persist their own ops.
- sync manager: short-circuit `handle_unknown_parent_envelope` when the
parent's payload was received between gossip-verification and the trigger
reaching sync. No lookup is created; the trigger is treated as a no-op.
- gossip→sync hook: when a Gloas envelope is imported via the gossip path,
emit `SyncMessage::GossipEnvelopeImported { block_root }` so any lookups
awaiting that parent envelope unblock without depending on the in-flight
RPC response landing first. Closes the review-flagged race where a
gossip-imported envelope left child lookups pinned.
Tests (3 new):
- envelope_already_received_skips_lookup — trigger after envelope already
in fork choice creates zero lookups.
- happy_path_unknown_parent_envelope — end-to-end RPC import path: lookups
complete, head advances to the gossip block.
- happy_path_unknown_parent_envelope_via_gossip — pending envelope-only
lookup unblocked by a concurrent gossip import via the new sync hook.
Existing tests updated:
- bad_peer_envelope_rpc_failure / bad_peer_wrong_envelope_response now
expect the lookup to retry and succeed (mirroring `bad_peer_*` tests for
blocks/blobs/columns), reflecting the now-working import path.
Lighthouse: Ethereum consensus client
An open-source Ethereum consensus client, written in Rust and maintained by Sigma Prime.
Overview
Lighthouse is:
- Ready for use on Ethereum consensus mainnet.
- Fully open-source, licensed under Apache 2.0.
- Security-focused. Fuzzing techniques have been continuously applied and several external security reviews have been performed.
- Built in Rust, a modern language providing unique safety guarantees and excellent performance (comparable to C++).
- Funded by various organisations, including Sigma Prime, the Ethereum Foundation, Consensys, the Decentralization Foundation and private individuals.
- Actively involved in the specification and security analysis of the Ethereum proof-of-stake consensus specification.
Staking Deposit Contract
The Lighthouse team acknowledges
0x00000000219ab540356cBB839Cbe05303d7705Fa
as the canonical staking deposit contract address.
Documentation
The Lighthouse Book contains information for users and developers.
The Lighthouse team maintains a blog at https://blog.sigmaprime.io/tag/lighthouse which contains periodic progress updates, roadmap insights and interesting findings.
Branches
Lighthouse maintains two permanent branches:
stable: Always points to the latest stable release.- This is ideal for most users.
unstable: Used for development, contains the latest PRs.- Developers should base their PRs on this branch.
Contributing
Lighthouse welcomes contributors.
If you are looking to contribute, please head to the Contributing section of the Lighthouse book.
Contact
The best place for discussion is the Lighthouse Discord server.
Sign up to the Lighthouse Development Updates mailing list for email notifications about releases, network status and other important information.
Encrypt sensitive messages using our PGP key.
Donations
Lighthouse is an open-source project and a public good. Funding public goods is hard and we're grateful for the donations we receive from the community via:
- Gitcoin Grants.
- Ethereum address:
0x25c4a76E7d118705e7Ea2e9b7d8C59930d8aCD3b(donation.sigmaprime.eth).