Enables AI agents to timestamp files in Bitcoin by submitting only their SHA-256 hashes, paying per hash in USDC via x402, and retrieving or verifying OpenTimestamps .ots proofs without an account or API key.
Provides cryptographic truth infrastructure for AI agents, enabling them to seal content with SHA-256 and Ed25519, verify receipts, anchor them to Bitcoin via OpenTimestamps, generate citations, and audit chains of receipts.
Enables AI agents and MCP hosts to anchor file hashes to Bitcoin via OpenTimestamps and verify proofs, ensuring files existed before a given time with privacy-preserving local hashing.