Bitcoin. Every language. From scratch.

10 full node implementations. 10 languages. Zero forks of Bitcoin Core. Every node syncs Bitcoin mainnet, passing all 1,222 consensus test vectors.

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10
Languages
Rust, Go, TypeScript, Erlang, OCaml, Zig, Haskell, Lua, Nim, Python
10/10
Syncing Mainnet
3 at chain tip, 7 in IBD
100%
Consensus compliance
All 1,222 Bitcoin Core test vectors, all 10 nodes
Full Taproot
All 10 nodes
BIP340 + BIP341 + BIP342
20+
BIPs per node
SegWit, Taproot, HD wallets, PSBT, and more
613k
Lines of code
Zero shared between implementations
0
Forks of Bitcoin Core
Every line written from scratch
Rust Go TypeScript Erlang OCaml Zig Haskell Lua Nim Python

Mainnet sync status

All 10 implementations syncing Bitcoin mainnet. Each node validates every block from genesis independently via P2P.

Rustoshi At Tip
945,075 blocks
1222/1222 test vectors
100%
Haskoin At Tip
945,075 blocks
1174/1174 test vectors
100%
Beamchain At Tip
944,990 blocks
1222/1222 test vectors
100%
Camlcoin IBD
871,000 blocks
~1,800 blk/hr · ETA ~41 hours
92.2%
Nimrod IBD
867,000 blocks
~1,700 blk/hr · ETA ~46 hours
91.7%
Ouroboros IBD
714,000 blocks
~180 blk/hr · ETA ~53 days
75.5%
Hotbuns IBD
582,000 blocks
~6,000 blk/hr · ETA ~60 hours
61.6%
Blockbrew IBD
488,000 blocks
~7,700 blk/hr · ETA ~59 hours
51.6%
Lunarblock IBD
434,000 blocks
~1,700 blk/hr · ETA ~300 hours
45.9%
Clearbit IBD
113,000 blocks
~9,800 blk/hr · ETA ~85 hours
12%
Flagship Project

Ouroboros

Hybrid Bitcoin full node in Rust + Python

A high-performance Bitcoin full node combining Rust for the hot path and Python for scripting and extensibility. Features block sync, validation, and a full script interpreter.

Learn more View source
terminal
$ git clone https://github.com/hashhog/ouroboros.git
$ cd ouroboros
$ cargo build --release
$ ./target/release/ouroboros --network=mainnet
✓ Syncing Bitcoin mainnet from genesis...

Every node tells a different story

The same protocol, reimagined through the idioms and strengths of each language.

Ouroboros

Rust Python
Flagship

Hybrid Bitcoin full node in Rust + Python

Features
74k lines 100%

Rustoshi

Rust

Bitcoin full node from scratch in Rust

Features
83k lines 100%

Blockbrew

Go

Bitcoin full node in Go

Features
85k lines 100%

Hotbuns

TypeScript

Bitcoin full node in TypeScript on Bun

Features
55k lines 100%

Beamchain

Erlang

Bitcoin full node in Erlang/OTP

Features
56k lines 100%

Camlcoin

OCaml

Bitcoin full node in OCaml

Features
64k lines 100%

Clearbit

Zig

Bitcoin full node in Zig

Features
67k lines 100%

Haskoin

Haskell

Bitcoin full node in Haskell

Features
46k lines 100%

Lunarblock

Lua

Bitcoin full node in Lua for LuaJIT

Features
38k lines 100%

Nimrod

Nim

Bitcoin full node in Nim

Features
46k lines 100%

What goes into a full node?

Every implementation covers the same foundational components that make Bitcoin work.

⟐

P2P Networking

Peer discovery, connection management, and message relay

⬡

Block Validation

Consensus rules, proof-of-work verification, script execution

◈

UTXO Set

Unspent transaction output database and chain state tracking

▤

Mempool

Unconfirmed transaction pool with fee-rate ordering

⌘

RPC Server

JSON-RPC API compatible with Bitcoin Core

⊡

Wallet

Key management, transaction signing, and HD derivation

Implementation matrix

How each implementation stacks up across core Bitcoin node features.

Feature Ouroboros Rust Rustoshi Rust Blockbrew Go Hotbuns TypeScript Beamchain Erlang Camlcoin OCaml Clearbit Zig Haskoin Haskell Lunarblock Lua Nimrod Nim
Wire serialization
Cryptographic primitives
Script interpreter
P2P networking
Block validation
UTXO set management
Header sync
Block sync (IBD)
Mempool
RPC server
Wallet
Mining/block templates
Script test vectors
Testnet4 sync
Mainnet sync IBD IBD IBD IBD IBD IBD IBD
BIP324 v2 transport

Want to contribute?

Every implementation is open source. Pick a language. Pick a feature. Start building.

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