{
  "type": "x402-observation",
  "version": 0,
  "id": "obs_2026-09-28_000141",
  "observer": {
    "id": "did:web:vet402.com#obs-key-2026-09",
    "address": "0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C",
    "sequence": 141
  },
  "issuedAt": 1790596527,
  "verdict": {
    "code": "DELIVERED",
    "reason": "Payment settled; HTTP 200, non-empty body, matched the declared format.",
    "recheck": null,
    "checks": {
      "paymentSettled": true,
      "httpStatus": 200,
      "bodyNonEmpty": true,
      "declaredFormatMatched": true,
      "sellerReceiptValid": null,
      "responseHashMatchesSeller": null
    }
  },
  "resourceUrl": "https://api.biotechcatalystsentinel.com/v1/catalysts/upcoming",
  "payment": {
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "scheme": "x402-exact",
    "transaction": "2UZmaYAqpodTCqXB5NgDY1fvzwzEmCBrTQSojVEkF3TWARVjkauNwVmRqg2ajQRMNVn8JqASG1wtNpYTDcKMphfs",
    "payer": "9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu",
    "payTo": "3gM4YDDPAi7w1di7rHAAaHc5T1tR7NRXzLWzPPN4ZRaM",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "20000",
    "decimals": 6,
    "assetSymbol": "USDC",
    "settledAt": null
  },
  "request": {
    "method": "GET",
    "url_hash": "0x8b096532b847e24cad361a5493f89c099a7714ad691d9a74914719a7fa4d5a9b",
    "params_hash": "0x2509741c1fd17a2ec2985e00b7fd6f0141ede9ab38e407f7840880161b111cfe",
    "params_salted": true,
    "ts": null
  },
  "response": {
    "status": 200,
    "responseHash": null,
    "responseHashAlg": null,
    "responseHashEncoding": null,
    "responseHashNote": "hash not recorded (this purchase predates receipts)",
    "contentType": "application/json",
    "bytes": null,
    "receivedAt": "2026-09-28T08:09:01.125Z",
    "latencyMs": null
  },
  "offer": null,
  "sellerReceipt": null,
  "scope": {
    "proves": [
      "observer-signed-at-time",
      "payment-on-chain",
      "response-status-at-time",
      "existed-by-anchor-time"
    ],
    "doesNotProve": [
      "content-correctness",
      "seller-trustworthiness",
      "seller-availability-now",
      "refund-entitlement"
    ],
    "vantage": "Seen from vet402's network only.",
    "text": "Proves vet402 paid and what HTTP status came back at this time. Does not prove the content is correct."
  },
  "notRecorded": [
    "request.ts: only the time after the response was recorded",
    "response.bytes",
    "response.latencyMs",
    "payment.settledAt",
    "response.responseHash: hash not recorded (this purchase predates receipts)"
  ],
  "source": {
    "dataset": "solana-census-2026-09-28",
    "row": "rows[106]"
  },
  "contact": "https://vet402.com/",
  "anchor": {
    "status": "anchored",
    "day": "2026-09-28",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "tx": "JqhzBqMSuL9ZrZz511fCgqcvU7Sjzhs7ccdbpqtdgUUUV7G1iBAuc4my5hReEkbyr6qk9vB3uMqB13cbpVzNeb2",
    "root": "0xc537015303c55d6f07a1b8262914fa972b6f1cea2d472c05f8cfd1bbb92856a6",
    "leafIndex": 140,
    "proof": [
      "0xd509978c0f58be61d3249621ee6a1dd56b618cc150ca329453a31ef36aec39ab",
      "0x52f8bb15945f43573e55d71d96cb1c1d1b7f3b2aa2bb4be34a6d2b25ca19ffe1",
      "0xeef7fe34e919bccb1af4406a1bc75688821fb0ac64c0af1681609718b90e4d4f",
      "0xd9dea2fa2c7c1458de20728ed05908cb93b37ace41e3ce9f6e48787912e99092",
      "0x0316f44329e129600e024833801fcc952b6280c5f874be9525adb98514d293ec",
      "0xbd3b51d3aa9ea1787dfbc0334b40b9ffd18f2c5dae20d7c474102a899ac33875",
      "0x123e4d54764f4fbd231a0d1647476a745f36055d7af7e4d0cb9991dd90033434"
    ],
    "count": 165,
    "sequenceRange": [
      1,
      165
    ],
    "observerAddress": "0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C",
    "anchoredAt": "2026-09-29T08:01:18.000Z"
  },
  "corrections": [],
  "signature": {
    "format": "eip712",
    "signature": "0x17b4a59aa36cf08c9e7a1283cbd004ebb1c17f21ca3d837349009884f25f822f5e2f040d7d1eb526d722edbabe2919850e9f5d69dab8aa00a060d830c2fb7f331c"
  }
}