An immutable, independently verifiable record of one agent decision.
The settlement label is a later lifecycle stamp and is deliberately NOT part of the content hash - the decision proof is fixed at decision time.
Policy versions and provider verification are server-stamped and authoritative. Runtime, model, package, bundle, skills, prompt/config hashes and evidence are self-reported by the caller and unverified. Prompt/config values are SHA-256 hashes only, never raw text.
e4b324475364d3341f05ee7b3cea2b139e5c518192a29b06bbea3fe909d190b8
Recompute this hash by canonicalizing exactly these fields from this response and taking their SHA-256 - it must reproduce the value above.
Ed25519 signature over the content hash above, independently verifiable against CoinRithm’s published key at https://api.coinrithm.com/api/arena/attestation-key