{
  "harness_run": "harness-2026-05-04-A",
  "step": 9,
  "rail": "Receipt",
  "label": "SIGNED SAMPLE ARTIFACT",
  "timestamp": "2026-05-04T19:00:00-07:00",
  "body": {
    "receipt_id": "rcpt_demo_a_001",
    "transaction_id": "txn-demo-a-001",
    "agent_id": "HKTN-7Q9RX2NF8K-DEMO-A",
    "event_hash_hex": "d7adb470d65e4da0b4c22dd35a3e082fd83fb4b74b985a7703e31f24395ec3fd",
    "intent_hash_hex": "1a76a3d012d91287087e76b7a346250d8d50264b766ecc9de9c0048c57f6e0e3",
    "policy_hash_hex": "1b2febebabd19c545465e565be4cc47e6ea0d1410750bcf3ff719923a7e3c802",
    "rubric_hash_hex": "f39c408b936745d33f1421716e83a2ddbb3050ca384dcc94d358abc40db46195",
    "proof_tier": "pro",
    "provenance_root_hex": "c77b2f39f232832a6995bfe8dcf74458cebff0f2f375c2885d53e410bc7825ad",
    "sealed_evidence_reference": "step_07_smsh.json",
    "settlement_reference": "step_10_settlement.json",
    "shod_signature_reference": "step_08_shod.json",
    "verifier_url": "https://thehiveryiq.com/verify",
    "evidence_room_reference": "https://thehiveryiq.com/evidence/transaction-harness/harness-2026-05-04-A/",
    "issuer": "did:hive:hive-passport",
    "issued_at": "2026-05-04T19:00:00-07:00",
    "_real_endpoint": "Receipt mint flow today: POST /v1/hktn/<hktn>/stamp produces stamp; dedicated /v1/receipt/emit is PILOT (Stage 2)",
    "_sample_reason": "End-to-end receipt mint endpoint is in pilot via stamp. Sample shows the canonical receipt JSON shape that /verify validates."
  },
  "signature": {
    "ed25519_sig_b64u_sample": "L3OMmeeCpmBLyQEzuTSYatXIozRbGrKcTRJZGneJEVovc4yZ54KmYEvJATO5NJhq1cijNFsaspxNElkad4kRWg",
    "issuer": "did:hive:hive-passport",
    "issuer_pubkey_b64u": "nxCpCWMw0EIYl5I37xFoSnaYNApu9nEZMNr370wfZgw",
    "alg": "Ed25519",
    "payload_canonical_sha256_hex": "2f738c99e782a6604bc90133b934986ad5c8a3345b1ab29c4d12591a7789115a",
    "_label": "SIGNED SAMPLE \u2014 deterministic placeholder. Replace with real signature from POST https://hive-passport.onrender.com/v1/sign in production. Verify the canonical-hash + payload chain offline at /verify."
  },
  "self_sha256_hex": "f3ccea771fae0f150ebce17273bb85a0f830d45ff8ca1ae7c92c622e5b19f765"
}