A single-file, content-addressed, append-only transport for RDF 1.2 graphs — four interoperable engines (Rust, Python, Go, TypeScript), one spec, one conformance corpus.
Official Python SDK and offline verifier for the BitSeal cryptographic proof-of-existence service. BLAKE3 Merkle trees, Ed25519 signatures, optionally Bitcoin-anchored via OpenTimestamps. Verifies seals end-to-end without trusting the BitSeal service.