Eval Attestation Receipt Composer

Hashes a third-party eval log (e.g. an Inspect AI transcript) and binds it into a receipt that a compiled Work Mandate (art-274) can reference. VERIFY-ONLY: never executes, re-runs, or re-scores the eval -- composes shipped §4 hash, §16 signature, and §20 anchor carriers around a digest the caller already produced. claim_strength is the weakest-link status across the eval log hash and the mandate reference, never inflated by one strong leg covering a missing other.

Tool URL: https://ainumbers.co/chaingraph/art-438-eval-attestation-receipt-composer.html AP2/Policy Mandate export: yes