{
  "type": "x402-observation",
  "version": 0,
  "id": "obs_2026-09-28_000154",
  "observer": {
    "id": "did:web:vet402.com#obs-key-2026-09",
    "address": "0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C",
    "sequence": 154
  },
  "issuedAt": 1790596527,
  "verdict": {
    "code": "DELIVERED",
    "reason": "Payment settled; HTTP 200, non-empty body.",
    "recheck": null,
    "checks": {
      "paymentSettled": true,
      "httpStatus": 200,
      "bodyNonEmpty": true,
      "declaredFormatMatched": null,
      "sellerReceiptValid": null,
      "responseHashMatchesSeller": null
    }
  },
  "resourceUrl": "https://api.hergertsynthora.com/v1/air-quality",
  "payment": {
    "network": "eip155:8453",
    "scheme": "x402-exact",
    "transaction": "0xe68e3d6073ff8646dc189552c308e9d4fae28ba9647748f8ce3ba2841a4fe6cc",
    "payer": "0x9B59aBF3dc92E7f60A6eeB7c1dEDC6dEB0bB4E51",
    "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "decimals": 6,
    "assetSymbol": "USDC",
    "settledAt": null
  },
  "request": {
    "method": "POST",
    "url_hash": "0x92889e5eda8e9af12b0c5056397969ce6dfcbfdc9c13f7ce139f9975a0273f93",
    "params_hash": null,
    "params_salted": false,
    "ts": "2026-09-28T08:17:18.312Z"
  },
  "response": {
    "status": 200,
    "responseHash": null,
    "responseHashAlg": null,
    "responseHashEncoding": null,
    "responseHashNote": "hash not recorded (this purchase predates receipts)",
    "contentType": "application/json",
    "bytes": 2920,
    "receivedAt": null,
    "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": [
    "response.receivedAt",
    "response.latencyMs",
    "payment.settledAt",
    "declared output format (not checked in this run)",
    "request.params_hash: request body not recorded",
    "response.responseHash: hash not recorded (this purchase predates receipts)"
  ],
  "source": {
    "dataset": "base-purchases-2026-09-28",
    "row": "line 7"
  },
  "contact": "https://vet402.com/",
  "anchor": {
    "status": "anchored",
    "day": "2026-09-28",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "tx": "JqhzBqMSuL9ZrZz511fCgqcvU7Sjzhs7ccdbpqtdgUUUV7G1iBAuc4my5hReEkbyr6qk9vB3uMqB13cbpVzNeb2",
    "root": "0xc537015303c55d6f07a1b8262914fa972b6f1cea2d472c05f8cfd1bbb92856a6",
    "leafIndex": 153,
    "proof": [
      "0x90dcf902332ba0b000bb10dcf32a52f3373d309c25dcc8615cc71b1bf5b9b050",
      "0x39a1641f943565d3142d1ea9d3ad23a741616e5ea7f6c7fd11388bcc71012043",
      "0x0783498268341bb109f89659b290c58dccb04b509c9d40e0d284a7e4acceec4f",
      "0xeafc09ffaf7d530e84ffe8e97f46805e6a2946cf5853cba5d01baeb24a782e5d",
      "0xcf43f3cc3cccf15423ffbc450cd3a404efea22096dbbb0d2eed3835f15e324a9",
      "0xbd3b51d3aa9ea1787dfbc0334b40b9ffd18f2c5dae20d7c474102a899ac33875",
      "0x123e4d54764f4fbd231a0d1647476a745f36055d7af7e4d0cb9991dd90033434"
    ],
    "count": 165,
    "sequenceRange": [
      1,
      165
    ],
    "observerAddress": "0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C",
    "anchoredAt": "2026-09-29T08:01:18.000Z"
  },
  "corrections": [],
  "signature": {
    "format": "eip712",
    "signature": "0x74fcb9e85968394533a93750fb227758b72be5ae8e17325ca6b0a699bcf8ee6c59cbea8fe64b4eea8e67370435c9d2beae5c23893d44f7cfd80d20db693cad8f1b"
  }
}