{
  "harness_run": "harness-2026-05-04-A",
  "step": 1,
  "rail": "Agent Identity",
  "label": "SIGNED SAMPLE ARTIFACT",
  "timestamp": "2026-05-04T19:00:00-07:00",
  "body": {
    "agent_did": "did:hive:agent-acme-eval-001",
    "owner": "Acme Evaluations Inc.",
    "hktn": "HKTN-7Q9RX2NF8K-DEMO-A",
    "tier_intent": "L2",
    "tier_engine_status": "minted",
    "minted_at": "2026-05-04T19:00:00-07:00",
    "commitment_hash_hex": "b4b4f703bedc83c4011a908f0f3f2b402ead8030ebb2d3c24e56646d305cd111",
    "prove_well_formed_url": "https://hive-passport.onrender.com/v1/hktn/HKTN-7Q9RX2NF8K-DEMO-A/prove/well-formed",
    "_real_endpoint": "POST https://hive-passport.onrender.com/v1/hktn/mint/direct",
    "_sample_reason": "Demo runs do not pollute the live HKTN registry. The HKTN, commitment, and signature are deterministic so this artifact replays identically."
  },
  "signature": {
    "ed25519_sig_b64u_sample": "ssujaH_X9GHGhxwpIvMtO6x1D1r7VdbB2iVOCNHx3HOyy6Nof9f0YcaHHCki8y07rHUPWvtV1sHaJU4I0fHccw",
    "issuer": "did:hive:hive-passport",
    "issuer_pubkey_b64u": "nxCpCWMw0EIYl5I37xFoSnaYNApu9nEZMNr370wfZgw",
    "alg": "Ed25519",
    "payload_canonical_sha256_hex": "b2cba3687fd7f461c6871c2922f32d3bac750f5afb55d6c1da254e08d1f1dc73",
    "_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": "47933310939464047f451148a106d99cc503747663bacf50fa5655a568307b17"
}