https://github.com/paritytech/shasper

Parity Shasper beacon chain implementation using the Substrate framework.
https://github.com/paritytech/shasper

Last synced: about 1 month ago
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Parity Shasper beacon chain implementation using the Substrate framework.

• Host: GitHub
• URL: https://github.com/paritytech/shasper
• Owner: paritytech
• License: gpl-3.0
• Archived: true
• Created: 2018-09-18T11:35:30.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2022-01-07T21:44:25.000Z (almost 3 years ago)
• Last Synced: 2024-08-02T03:07:38.720Z (4 months ago)
• Language: Rust
• Homepage:
• Size: 4.15 MB
• Stars: 197
• Watchers: 27
• Forks: 23
• Open Issues: 21
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: CODEOWNERS
  • Security: SECURITY.md

Awesome Lists containing this project

• awesome-blockchain-rust - Shasper
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• awesome-substrate - shasper, Shasper beacon chain implementation using the Substrate framework

README

        
# Parity Shasper

[![crates.io](https://img.shields.io/crates/v/beacon.svg)](https://crates.io/crates/beacon)

[![Documentation](https://docs.rs/beacon/badge.svg)](https://docs.rs/beacon)

This is an implementation of

[Serenity](https://github.com/ethereum/eth2.0-specs) beacon chain by Parity

Technologies. To learn more about Serenity and Ethereum's sharding plan, see the

[sharding FAQ](https://github.com/ethereum/wiki/wiki/Sharding-FAQ) and the

[research compendium](https://notes.ethereum.org/s/H1PGqDhpm).

Parity Shasper consists of a core library `beacon` which handles beacon chain

state transition logic, a client built on

[Substrate](https://github.com/paritytech/substrate) framework (in `substrate`

folder), and a lightweight client built from ground up (in `blockchain`

folder). The `substrate` client and the `blockchain` client shares the core

library, but operates independently.

To build the client, you need to have [Rust](https://www.rust-lang.org/)

installed. Other dependencies required including `pkgconfig`, `libudev`,

`openssl`, `cmake`, `clang`.

## `substrate` client

The `substrate` client is currently being reworked at this moment. Stay tuned!

## `blockchain` client

The `blockchain` client uses spec archive LMD-GHOST consensus and Serenity

`beacon` v0.8 runtime. The client implements a basic in-memory backend and

networking stack based on `libp2p`. It also contains basic validator logic and

can participate in beacon chain proposing and attestation.

To build the `blockchain` client:

```bash

cd ./blockchain && cargo run --release -- --author

```

## FAQ

**Why common caching strategies for `beacon` and LMD-GHOST are not yet

implemented?**

Internally we made the decision that we will strictly follow the beacon chain

specification for now, and implement optimizations after the specification is

frozen. This is because the specification still changes a lot, and we worry that

optimizations we make right now will make upgrading to a newer version of the

specification much harder.

## License

Licensed under GPLv3.