{
  "schema_version": "1.0",
  "report_id": "LXXI-EVIDENCE-001",
  "experiment_id": "REV-20260713-01",
  "correlation_id": "REV-20260713-01-EVIDENCE-001",
  "observed_at": "2026-07-16T00:51:06.357Z",
  "title": "A valid challenge is not a completed payment",
  "target": {
    "url": "https://mcp.loopxxi.com/l402/btc_price",
    "method": "GET",
    "operator": "Loop XXI LLC"
  },
  "observation": {
    "result": "challenge_valid",
    "http_status": 402,
    "advertised_sats": 10,
    "latency_ms": 183.25,
    "payment_attempted": false,
    "fulfillment_attempted": false
  },
  "supported_claims": [
    "The public route responded with HTTP 402 at the observed time.",
    "The route advertised a 10-sat payment challenge.",
    "The token and invoice observations are bound by hashes in the signed receipt.",
    "The receipt matches Loop XXI's published persistent verifier identity."
  ],
  "unsupported_claims": [
    "No Lightning invoice was paid.",
    "No authenticated retry was attempted.",
    "No paid result was delivered.",
    "No external settlement or revenue occurred."
  ],
  "receipt": {
    "url": "https://loopxxi.com/evidence/receipt-001.json",
    "receipt_hash": "450095b6ad5931db31b8630d5514dacc33245ef91fa8d5a8dba60b1755bc4e40",
    "key_id": "d11b6ed37f90a5359e299eb6c8be5a9ac52443c3522faaed111f42ab0ee29a47",
    "algorithm": "Ed25519",
    "verifier_url": "https://loopxxi.com/verify-receipt",
    "identity_url": "https://loopxxi.com/.well-known/settlement-probe-verifier.json"
  },
  "human_report_url": "https://loopxxi.com/evidence",
  "call_to_action": {
    "free_preflight": "https://loopxxi.com/agent-revenue-readiness#preflight",
    "current_products": "https://loopxxi.com/products"
  }
}