This repo is purely an exploration of current ideas communicated in various blog posts. It is not meant to produce a practically useful blockchain solution, nor does it attempt to be particularly smart about it. Most if not all credit goes to the authors of the posts below:
- How to build a blockchain in Rust by Mario Zupan
- Proof-of-work mining
- Data is purely in-memory, i.e. the blockchain is not persisted
- Essentially builds upon libp2p, Tokio and sha2
- GitHub repo at zupzup/rust-blockchain-example
- How to Build a Blockchain from Scratch with Rust Programming Language by Nandu Singh
- Rusty Chains: A Basic Blockchain Implementation Written in Pure Rust on hackernoon
To run the example, execute
$ RUST_LOG=info cargo runAfter the console output settles, you can execute these commands:
ls p: prints all discovered peersls c: prints the current blockchaincreate b <DATA>: creates (mines) a new block containing the payload<DATA>
- If two peers disagree on the next block in a chain because they are mining a successor block to the current state, the first one wins and the second one is now in a failed state from which it will not recover.
- Race conditions can be created by increasing the difficulty and creating a block on multiple application instances simultaneously.