SCITT, the Supply Chain Integrity, Transparency, and Trust working group at IETF, is the standards track for append-only logs that hold cryptographic statements about software, models, and now AI agent actions. Transparency services consume signed statements, append them to a Merkle log, and hand back inclusion proofs. The receipts have to be in a format the service understands. That format is COSE. Asqav now exports any signed receipt as a COSE_Sign1 envelope on demand, so you can submit Asqav-signed agent actions to a SCITT transparency service. Why SCITT An organisation that wants third-party-verifiable evidence of agent behaviour does not want to run its own append-only log. SCITT separates the signer from the log operator. The signer says "I claim this happened". The transparency service says "I have witnessed and ordered this claim". A consumer checks both signatures and gets non-repudiable, ordered evidence without trusting either party alone.…