bitcoin-universe

Protocol documentation for Atomicals and ARC-20 on Bitcoin: specification, guide, indexer reference, test vectors, and a client-side transfer simulator.

Tokens with Bitcoin at their core. Discover the DUST-20 satoshi-linked asset experience.

Create and evolve a Bitcoin-native object together, with shared control and prepared recovery.

Mezcal protocol documentation: a fungible token protocol carried as UTF-8 JSON in a Bitcoin OP_RETURN. Specification, guide, indexer semantics, test vectors, and a payload validator.

TAP protocol documentation for Bitcoin mainnet: specification, guide, reference, test vectors and a client side payload validator.

Independent Bitcoin Core indexer for the Witness Circles protocol

Independent Rust and PostgreSQL verifier for Tandem

Archived: final public documentation for the Dogecoin TAP indexer. Preserved API contract and README. Replaced by the TAP on Doge protocol documentation.

ALKANES metaprotocol Rust implementation

Witness Circles (WITC): a Bitcoin protocol for membership records established by mutual witnessing. Specification, reference implementation and documentation.

OP_DROP: a Bitcoin data carrier that pushes a payload into a Taproot leaf script and drops it from the stack. Specification, test vectors, and a client-side decoder.

BRC-20 protocol documentation: specification, guide, indexer reference, test vectors, and a client-side payload validator.

Claim names, build identity, and grow onchain stories with SRC-101.

User documentation for Universe Wallet, the self-custody browser wallet for Bitcoin digital artifacts

Index Bitcoin meta-protocols like Ordinals, BRC-20, and Runes

Shared GitHub Actions for Universe CI. No secrets, no account identifiers.

Tandem Pipeline A indexer, API, and signed agreement service

Ordinals indexer, HTTP API and block explorer for Dogecoin: Doginals, DRC-20 and Dunes. Bitcoin Universe fork of Trac-Systems/ord-dogecoin (CC0-1.0).

A block and mempool explorer for Bitcoin, Dogecoin, and Zcash that also reads the asset protocols carried on them. Shows exactly which outputs carry which assets, with first-party evidence and a stated block for every claim. Self-hostable, AGPL, no trackers.

Archived: the retired SCIT/1 (Sentry) Bitcoin protocol. Preserved specification, conformance vectors, and final README. Frozen, unmaintained, no replacement.