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VEX

Merkle Audit Trail

tamper-evident loggingcryptographic log integrityautonomous execution audit

A Merkle-linked audit trail is an append-only log structure that uses cryptographic hashing to produce tamper-evident records of governed execution events.

THE AUDIT INTEGRITY PROBLEM

Traditional logging systems are vulnerable to post-hoc modification. A Merkle-linked structure makes sanitization detectable because any deletion or modification of a log entry breaks the integrity from that point forward.

PROTOCOL CONTEXT (VEX — EVIDENCE ARCHITECTURE)

The vex-core library implements tamper-evident log construction. Governed execution events produce records that can be committed to a Merkle structure, with periodic anchoring that provides an externally verifiable integrity checkpoint.

ProvnAI Mitigation

VEX-integrated deployments can preserve selected blocked security events as evidence. Log consumers can verify historical integrity where the VEX evidence layer is deployed.