Paid call

The blob, as servednamed by its sha256

{
  "schema": "teppi.evidence.v1",
  "capability_id": "cap_01M1A51MNFBA5ZC0WG1KXYM23X",
  "probe_id": "prb_01M40ECQKPBE3Z879JF6AGN3S3",
  "golden_task_id": null,
  "observed_at": "2026-10-03T08:34:21.807Z",
  "transcript_hash": "sha256:4536aa56bc9b7f16c922e54cc40eec08c18458c3bf5d2486cd3dfac63bc47c0d",
  "request": {
    "url": "https://x402uselessfacts.vercel.app/api/useless-fact",
    "method": "GET",
    "body_hash": "sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a"
  },
  "response": {
    "status": 200,
    "body_hash": "sha256:f326fbb4ad98ba20448d46428c42924d3304c8ab17f8bfa89af2c1d74e128531",
    "latency_ms": 753
  },
  "payment": {
    "advertised": "1000",
    "settled": "1000",
    "asset": "USDC",
    "network": "eip155:8453",
    "tx_hash": "0x56e9029f30fb127c308318760bcf4568ec09a058d9268d5e3caec95eaa396813",
    "facilitator": "cdp"
  },
  "checks": [
    {
      "layer": "L0",
      "pass": true,
      "score": 1
    },
    {
      "layer": "L0",
      "pass": true,
      "score": 1
    },
    {
      "layer": "L1",
      "pass": false,
      "score": null,
      "detail": "no output schema published, so nothing can be validated"
    },
    {
      "layer": "L2",
      "pass": false,
      "score": null,
      "detail": "no fields to compare"
    }
  ],
  "verdict": {
    "correctness": null,
    "honesty": 1,
    "schema_conformance": null,
    "liveness": 1
  },
  "injection_observed": false,
  "verifier_version": "2026.09.7"
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:ddb5f54ce0e2ad48f73c7a4829c361dc71757e8aeab7432bb2d4a8afa00ae8ed | sha256sum

npx teppi-check https://x402uselessfacts.vercel.app/api/useless-fact