01 Hosted tool
BitSeal
A cryptographic provenance system that seals files with BLAKE3 Merkle trees, Ed25519 signatures, and Bitcoin-anchored timestamps via OpenTimestamps.
What it does
- Client-side BLAKE3 hashing and Merkle tree sealing
- Ed25519 Authority signatures with published verification key
- Bitcoin-anchored timestamps via OpenTimestamps
- Open-source Python SDK with offline verification