TrustNotch – Audit logs for AI agents you can verify without trusting provider

Tamper-evident audit logs

for AI agents.

Cryptographically signed, Bitcoin-anchored, and verifiable offline — even if TrustNotch is gone.

Three steps from action to proof

- Signed receipt on submissionAn agent submits an action over HTTP. TrustNotch returns an Ed25519-signed receipt immediately — a cryptographic commitment to the exact content logged.

- Merkle-batched & Bitcoin-anchoredEntries are batched into an RFC 6962 Merkle tree. Each batch root is anchored to Bitcoin via OpenTimestamps, giving every entry a tamper-evident timestamp rooted in the world's most audited ledger.

- Verify offline, independentlyAnyone can verify any entry with the open-source trustnotchverifier — no trust in TrustNotch required. The receipt, Merkle inclusion, and Bitcoin anchor are all checked locally. A proof keeps verifying even if TrustNotch disappears.