{
  "harness_run": "harness-2026-05-04-A",
  "step": 8,
  "rail": "SHOD",
  "label": "SIGNED SAMPLE ARTIFACT",
  "timestamp": "2026-05-04T19:00:00-07:00",
  "body": {
    "origin_declaration": {
      "agent_id": "HKTN-7Q9RX2NF8K-DEMO-A",
      "operator_did": "did:hive:hive-passport",
      "system_attribution": "hive-passport / smsh.prov layer-1",
      "transaction_id": "txn-demo-a-001",
      "intent_hash_hex": "1a76a3d012d91287087e76b7a346250d8d50264b766ecc9de9c0048c57f6e0e3",
      "policy_hash_hex": "1b2febebabd19c545465e565be4cc47e6ea0d1410750bcf3ff719923a7e3c802",
      "rubric_hash_hex": "f39c408b936745d33f1421716e83a2ddbb3050ca384dcc94d358abc40db46195",
      "signed_at": "2026-05-04T19:00:00-07:00"
    },
    "classical_signature": "ed25519:demo_sample_sig_classical",
    "pq_signature_metadata": {
      "tier": "standard",
      "dual_sig_present": false,
      "designed_to_support": "ML-DSA-65"
    },
    "verify_url": "https://hive-passport.onrender.com/v1/prov/verify",
    "_real_endpoint": "Per-response Ed25519 prov header on every hive-passport response (LIVE)",
    "_sample_reason": "Live SHOD signs every response automatically. Sample synthesizes a SHOD declaration over the demo transaction inputs."
  },
  "signature": {
    "ed25519_sig_b64u_sample": "F2ibo3GSfpEez09FNcJmaFg6U1eLjLXDpDRpxHrm5cEXaJujcZJ-kR7PT0U1wmZoWDpTV4uMtcOkNGnEeublwQ",
    "issuer": "did:hive:hive-passport",
    "issuer_pubkey_b64u": "nxCpCWMw0EIYl5I37xFoSnaYNApu9nEZMNr370wfZgw",
    "alg": "Ed25519",
    "payload_canonical_sha256_hex": "17689ba371927e911ecf4f4535c26668583a53578b8cb5c3a43469c47ae6e5c1",
    "_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": "74f74f3f4623e84bb78aa4a16b3d6671025dd3515cfdddb53dc5c0be3caf61bb"
}