f2f920dec8
## Issue Addressed This PR partially addresses #3651 ## Proposed Changes This PR adds the following containers types from [the lightclient specs](https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/light-client/sync-protocol.md): `LightClientUpdate`, `LightClientFinalityUpdate`, `LightClientOptimisticUpdate` and `LightClientBootstrap`. It also implements the creation of each updates as delined by this [document](https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/light-client/full-node.md). ## Additional Info Here is a brief description of what each of these container signify: `LightClientUpdate`: This container is only provided by server (full node) to lightclients when catching up new sync committees beetwen periods and we want possibly one lightclient update ready for each post-altair period the lighthouse node go over. it is needed in the resp/req in method `light_client_update_by_range`. `LightClientFinalityUpdate/LightClientFinalityUpdate`: Lighthouse will need only the latest of each of this kind of updates, so no need to store them in the database, we can just store the latest one of each one in memory and then just supply them via gossip or respreq, only the latest ones are served by a full node. finality updates marks the transition to a new finalized header, while optimistic updates signify new non-finalized header which are imported optimistically. `LightClientBootstrap`: This object is retrieved by lightclients during the bootstrap process after a finalized checkpoint is retrieved, ideally we want to store a LightClientBootstrap for each finalized root and then serve each of them by finalized root in respreq protocol id `light_client_bootstrap`. Little digression to how we implement the creation of each updates: the creation of a optimistic/finality update is just a version of the lightclient_update creation mechanism with less fields being set, there is underlying concept of inheritance, if you look at the specs it becomes very obvious that a lightclient update is just an extension of a finality update and a finality update an extension to an optimistic update. ## Extra note `LightClientStore` is not implemented as it is only useful as internal storage design for the lightclient side. |
||
|---|---|---|
| .github | ||
| account_manager | ||
| beacon_node | ||
| book | ||
| boot_node | ||
| common | ||
| consensus | ||
| crypto | ||
| database_manager | ||
| lcli | ||
| lighthouse | ||
| scripts | ||
| slasher | ||
| testing | ||
| validator_client | ||
| .dockerignore | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmodules | ||
| bors.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| CONTRIBUTING.md | ||
| Cross.toml | ||
| Dockerfile | ||
| Dockerfile.cross | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| SECURITY.md | ||
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 lighthouse-blog.sigmaprime.io which contains periodical 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).