Floresta

Welcome to Floresta, a lightweight Bitcoin full node implementation written in Rust, powered by Utreexo a novel dynamic accumulator designed for the Bitcoin UTXO set.

This project is composed of two parts, libfloresta and florestad. libfloresta is a set of reusable components that can be used to build Bitcoin applications. florestad is built on top of libfloresta to provide a full node implementation, including a watch-only wallet and an Electrum server. If you just want to run a full node, you can use florestad directly, either by building it from source or by downloading a pre-built binary from the releases.

If you want to use libfloresta to build your own Bitcoin application, you can find the documentation here.

Comunity

If you want to discuss this project, you can join our Discord server here.

Building

You'll need Rust and Cargo, refer to this for more details. Minimum support version is rustc 1.64 and newer.

Once you have Cargo, clone the repository with:

git clone https://github.com/Davidson-Souza/Floresta.git

go to the Floresta directory

cd Floresta/

and build with cargo build

cargo build --release --bin florestad
# Optionally, you can add florestad to the path with
cargo install --path ./florestad

Running

Right now, this project is working on signet only. Mainnet support is still a todo thing. You can get some signet coins here and just play around with it. Copy config.toml.sample to config.toml, and fill up your xpubs and addresses that you intend to track, and then run with

florestad -c config.toml --network signet run

or

./target/release/florestad -c config.toml --network signet run

or

cargo run --release -- -c config.toml --network signet run

Running the tests

There's a set of unit tests that you can run with

cargo test

Contributing

Contributions are welcome, feel free to open an issue or a pull request. There's not really a set of guidelines for contributing other than the code compiling and the tests passing. If you want to contribute but don't know where to start, take a look at the issues, there's a few of them marked as good first issue.

License

This project is licensed under the MIT License - see the LICENSE file for details

Acknowledgments

• Utreexo
• Bitcoin Core
• Rust Bitcoin
• Rust Miniscript

Consensus implementation

One of the most challenging parts of working with Bitcoin is keeping up with the consensus rules. Given it's nature as a consensus protocol, it's very important to make sure that the implementation is correct. Instead of reimplementing a Script interpreter, we use rust-bitcoinconsensus to verify transactions. This is a bind around a shared library that is part of Bitcoin Core. This way, we can be sure that the consensus rules are the same as Bitcoin Core, at least for scripts.

Although tx validation is arguably the hardest part in this process. This integration can be further improved by using libbitcoinkernel, that will increase the scope of libbitcoinconsensus to outside scripts, but this is still a work in progress.