Open AI Artifact Evidence Standard (v1)

A published, independently-implementable evidence standard for open AI artifacts.

Principles

  • Exact bytes over names — every claim resolves to a content digest.
  • Evidence over authority — every claim states issuer, scope, method, timestamp, expiration.
  • Independently verifiable — signatures + an append-only transparency record, not 'trust us'.

Required claim fields

  • subject
  • claim
  • issuer
  • method
  • scope
  • issuedAt
  • expiresAt
  • signature

Conformance rules

  • A conformant identity never resolves to changed bytes silently.
  • A conformant claim without issuer+scope+method+time is invalid.
  • A conformant verifier can recompute the transparency hash chain.

Machine-readable standard (JSON)