{"schema":"dominion-liveness-receipt-v0.1","title":"Agent Liveness & Revocation Receipt","what":"A neutral, signed, transaction-time attestation that a counterparty agent's identity is currently live and not revoked. The agent-economy equivalent of an OCSP response / Certificate-Transparency check.","why":"Before agent A relies on or pays agent B, A (or A's gateway) calls this oracle. The signed receipt is A's non-repudiable evidence that the counterparty was live-and-unrevoked at action time — the artifact insurers, escrow and dispute-adjudication settle against.","issuer":"did:web:dominionobservatory.com","neutral":true,"neutrality_note":"Dominion Observatory is not a marketplace, registry, or payment rail and does not host, sell, or take a cut of the agents it checks — so it can be the neutral arbiter a conflicted party structurally cannot.","usage":{"check":"https://dominion-observatory.sgdata.workers.dev/atlas/liveness?subject=<agent_or_server_url_or_did>","challenge":"https://dominion-observatory.sgdata.workers.dev/atlas/liveness?subject=<...>&mode=challenge  (issues a nonce the subject signs to prove key-possession)","with_proof":"https://dominion-observatory.sgdata.workers.dev/atlas/liveness?subject=<...>&challenge=<nonce>&proof=<subject_signature>"},"receipt_fields":{"schema":"schema identifier + version","subject":{"id":"resolved counterparty URL/DID","did":"did:web form when derivable"},"verdict":"LIVE | STALE | REVOKED | UNKNOWN","checks":{"identity_resolved":"true if the subject is known to the neutral index","revocation_status":"active | revoked | unknown","liveness":"live (observed <=30d) | stale (>30d) | unobserved","last_observed":"ISO timestamp of last independent observation","proof_of_possession":"not_presented | presented (verified flag) — challenge-response"},"receipt":{"id":"urn:dominion:liveness:<day>:<subject>","jws":"Ed25519 JWS compact (EdDSA) over the verdict+checks","evidence_hash":"head of the public tamper-evident hash chain","hash_alg":"SHA-256"},"verify":{"jwks":"https://dominion-observatory.sgdata.workers.dev/.well-known/jwks.json","transparency":"https://dominion-observatory.sgdata.workers.dev/atlas/transparency"}},"pricing_note":"Free preview. At volume, liveness checks are x402-metered (sub-cent/check) and the signed receipt is the caller's liability artifact.","status":"v0.1 — schema published for the agent economy; PoP signature verification against subject keys is on the roadmap.","generated_at":"2026-06-07T10:14:54.289Z"}