Tamper-evident log
A log built so that any later change, deletion or reordering of entries can be detected.
A tamper-evident log is a record built so that any later alteration, deletion or reordering of its entries can be detected, typically by chaining each entry to the previous one with a cryptographic hash and signing or publishing checkpoints. It does not prevent tampering, but it makes tampering visible to anyone who checks. For agentic finance, it gives an evidence pack integrity, so that the operator of an agent cannot quietly rewrite what the agent did.
Agent Minute explains this term on 19 February 2027.
Related terms
Evidence packA bundle of records that reconstructs one agent action: identity, mandate, authentication, inputs, calls, outputs and approvals.Audit trailA chronological record of who accessed a system and what operations they performed, enough to reconstruct events.HTTP Message SignaturesAn IETF standard for signing selected parts of an HTTP request or response so the receiver can verify them.Verifiable credentialA tamper-evident set of claims by an issuer, held by a holder and cryptographically checkable by a verifier.