Tamper-evident audit logs
for AI agents.

Three steps from action to proof

1. 01

   Signed receipt on submission

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

2. 02

   Merkle-batched & Bitcoin-anchored

   Entries 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.

3. 03

   Verify offline, independently

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