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# Lighthouse: Ethereum consensus client
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2019-06-25 04:02:19 +00:00
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2022-03-02 01:05:08 +00:00
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An open-source Ethereum consensus client, written in Rust and maintained by Sigma Prime.
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2018-07-06 07:54:07 +00:00
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2022-05-20 05:02:14 +00:00
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[![Book Status]][Book Link] [![Chat Badge]][Chat Link]
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2019-05-10 01:49:28 +00:00
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2019-07-31 21:53:30 +00:00
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[Chat Badge]: https://img.shields.io/badge/chat-discord-%237289da
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[Chat Link]: https://discord.gg/cyAszAh
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2021-02-11 06:06:54 +00:00
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[Book Status]:https://img.shields.io/badge/user--docs-unstable-informational
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2020-11-09 01:28:39 +00:00
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[Book Link]: https://lighthouse-book.sigmaprime.io
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2020-11-24 04:42:17 +00:00
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[stable]: https://github.com/sigp/lighthouse/tree/stable
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[unstable]: https://github.com/sigp/lighthouse/tree/unstable
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2023-05-30 01:38:47 +00:00
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[blog]: https://lighthouse-blog.sigmaprime.io
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2019-10-02 01:04:56 +00:00
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2020-11-09 01:28:39 +00:00
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[Documentation](https://lighthouse-book.sigmaprime.io)
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2019-12-09 11:42:36 +00:00
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2020-10-23 04:16:38 +00:00
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2018-07-12 05:01:28 +00:00
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2019-06-25 04:02:19 +00:00
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## Overview
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Lighthouse is:
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- Ready for use on Ethereum consensus mainnet.
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- Fully open-source, licensed under Apache 2.0.
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- Security-focused. Fuzzing techniques have been continuously applied and several external security reviews have been performed.
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- Built in [Rust](https://www.rust-lang.org), a modern language providing unique safety guarantees and
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2019-06-25 04:02:19 +00:00
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excellent performance (comparable to C++).
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- Funded by various organisations, including Sigma Prime, the
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2020-11-24 10:29:39 +00:00
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Ethereum Foundation, ConsenSys, the Decentralization Foundation and private individuals.
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- Actively involved in the specification and security analysis of the
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Ethereum proof-of-stake consensus specification.
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## Staking Deposit Contract
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2020-11-04 19:46:42 +00:00
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The Lighthouse team acknowledges
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[`0x00000000219ab540356cBB839Cbe05303d7705Fa`](https://etherscan.io/address/0x00000000219ab540356cbb839cbe05303d7705fa)
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as the canonical staking deposit contract address.
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2020-11-24 04:42:17 +00:00
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## Documentation
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2019-06-25 04:02:19 +00:00
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2020-11-24 04:42:17 +00:00
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The [Lighthouse Book](https://lighthouse-book.sigmaprime.io) contains information for users and
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developers.
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2022-04-21 14:59:08 +00:00
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The Lighthouse team maintains a blog at [lighthouse-blog.sigmaprime.io][blog] which contains periodical
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progress updates, roadmap insights and interesting findings.
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2019-06-25 04:02:19 +00:00
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2020-11-24 04:42:17 +00:00
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## Branches
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2020-11-24 04:42:17 +00:00
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Lighthouse maintains two permanent branches:
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- [`stable`][stable]: Always points to the latest stable release.
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- This is ideal for most users.
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- [`unstable`][unstable]: Used for development, contains the latest PRs.
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2021-04-14 02:30:54 +00:00
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- Developers should base their PRs on this branch.
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2019-02-28 13:18:53 +00:00
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2019-06-25 04:02:19 +00:00
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## Contributing
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2019-10-02 01:04:56 +00:00
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Lighthouse welcomes contributors.
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If you are looking to contribute, please head to the
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[Contributing](https://lighthouse-book.sigmaprime.io/contributing.html) section
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of the Lighthouse book.
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2018-07-06 07:54:07 +00:00
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## Contact
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2019-07-31 21:53:30 +00:00
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The best place for discussion is the [Lighthouse Discord
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server](https://discord.gg/cyAszAh).
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2018-10-03 08:37:28 +00:00
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2023-01-17 05:13:49 +00:00
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Sign up to the [Lighthouse Development Updates](https://eepurl.com/dh9Lvb) mailing list for email
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2021-03-18 07:27:03 +00:00
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notifications about releases, network status and other important information.
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2020-11-16 06:28:11 +00:00
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2019-10-02 01:04:56 +00:00
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Encrypt sensitive messages using our [PGP
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key](https://keybase.io/sigp/pgp_keys.asc?fingerprint=15e66d941f697e28f49381f426416dc3f30674b0).
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2019-06-25 04:02:19 +00:00
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## Donations
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Lighthouse is an open-source project and a public good. Funding public goods is
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hard and we're grateful for the donations we receive from the community via:
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- [Gitcoin Grants](https://gitcoin.co/grants/25/lighthouse-ethereum-20-client).
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- Ethereum address: `0x25c4a76E7d118705e7Ea2e9b7d8C59930d8aCD3b` (donation.sigmaprime.eth).
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