Ethereum consensus client in Rust
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Michael Sproul 9667dc2f03 Implement checkpoint sync (#2244)
## Issue Addressed

Closes #1891
Closes #1784

## Proposed Changes

Implement checkpoint sync for Lighthouse, enabling it to start from a weak subjectivity checkpoint.

## Additional Info

- [x] Return unavailable status for out-of-range blocks requested by peers (#2561)
- [x] Implement sync daemon for fetching historical blocks (#2561)
- [x] Verify chain hashes (either in `historical_blocks.rs` or the calling module)
- [x] Consistency check for initial block + state
- [x] Fetch the initial state and block from a beacon node HTTP endpoint
- [x] Don't crash fetching beacon states by slot from the API
- [x] Background service for state reconstruction, triggered by CLI flag or API call.

Considered out of scope for this PR:

- Drop the requirement to provide the `--checkpoint-block` (this would require some pretty heavy refactoring of block verification)


Co-authored-by: Diva M <divma@protonmail.com>
2021-09-22 00:37:28 +00:00
.github Updates to make crates publishable (#2472) 2021-09-03 01:10:25 +00:00
account_manager Updates to make crates publishable (#2472) 2021-09-03 01:10:25 +00:00
beacon_node Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
book Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
boot_node Experimental discovery (#2577) 2021-09-16 04:45:05 +00:00
common Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
consensus Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
crypto Updates to make crates publishable (#2472) 2021-09-03 01:10:25 +00:00
lcli Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
lighthouse Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
scripts Fix typo of vars.env (#2574) 2021-09-07 03:14:03 +00:00
slasher Update sloggers to v2.0.2 (#2588) 2021-09-14 06:48:26 +00:00
testing Web3Signer support for VC (#2522) 2021-09-16 03:26:33 +00:00
validator_client Web3Signer support for VC (#2522) 2021-09-16 03:26:33 +00:00
.dockerignore Use OS file locks in validator client (#1958) 2020-11-26 11:25:46 +00:00
.editorconfig Add editorconfig template 2019-03-11 15:09:57 +11:00
.gitignore Delete uncompressed genesis states (#2092) 2020-12-16 03:44:05 +00:00
.gitmodules Replace EF tests submodule with a makefile 2019-09-08 04:19:54 +10:00
bors.toml Add Windows to Bors config (#2358) 2021-05-20 00:23:08 +00:00
Cargo.lock Implement checkpoint sync (#2244) 2021-09-22 00:37:28 +00:00
Cargo.toml Web3Signer support for VC (#2522) 2021-09-16 03:26:33 +00:00
CONTRIBUTING.md Update CONTRIBUTING.md (#751) 2020-01-03 10:45:53 +11:00
Cross.toml Ensure RUSTFLAGS is passed through on cross compile (#1529) 2020-08-17 10:06:06 +00:00
Dockerfile Update outdated dependencies (#2425) 2021-07-05 00:54:17 +00:00
Dockerfile.cross Multiarch docker GitHub actions (#2065) 2020-12-09 06:06:37 +00:00
LICENSE Update License to Apache 2.0 2019-04-15 16:47:35 +10:00
Makefile Bump libp2p to address inconsistency in mesh peer tracking (#2493) 2021-08-12 01:59:20 +00:00
README.md Fix readme typo (#2312) 2021-04-14 02:30:54 +00:00
SECURITY.md Add how users should report security vulnerabilities for this repository (#2562) 2021-09-07 01:54:05 +00:00

Lighthouse: Ethereum 2.0

An open-source Ethereum 2.0 client, written in Rust and maintained by Sigma Prime.

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Overview

Lighthouse is:

  • Ready for use on Eth2 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 2.0 specification.

Eth2 Deposit Contract

The Lighthouse team acknowledges 0x00000000219ab540356cBB839Cbe05303d7705Fa as the canonical Eth2 deposit contract address.

Documentation

The Lighthouse Book contains information for users and developers.

The Lighthouse team maintains a blog at lighthouse.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. Alternatively, you may use the sigp/lighthouse gitter.

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).