NOT DELIVERED
vet402 paid 0.1 USDC on Solana to api.xona-agent.com/token/pumpfun-trending. The seller answered HTTP 500.
(request sent)
Seen from vet402's network only.
Proves: vet402 paid and saw this HTTP status at this time.
Doesn't prove: that the content is correct, or that the seller is working now.
Are you the seller?
You can attach your own signed x402 Receipt for this transaction, add a note, or ask vet402 to pay and check again. Nothing here is deleted; additions are listed below the record with their date.
Open an issue at github.com/kzmttkc/vet402-delivery/issues with the record id obs_2026-10-08_002066 (the same place as corrections to the ranking), or send the id to https://vet402.com/.
3 checks
- ✓Payment0.1 USDC on Solana · 4yVfmY…R535 ↗
from
9VaAPD…aQRuto9VaDVp…STEA - ○ResponseHTTP 500
Payment settled; the seller answered HTTP 500.
responseHash: hash not recorded (the daily remeasure run does not hash the response) - ✓RecordIn the 2026-10-08 root, written on Solana · 393jr9…ppVg ↗ also in the observation_roots program on Solana · GH6SYw…GA9Q ↗ and on Tempo · 0xf276…0a11 ↗
Verify it yourself
No account and no payment needed. The script checks that vet402's published key (src/receipt/observers.ts) signed this record, looks up the payment on chain, and checks the record against its daily Merkle root.
git clone https://github.com/kzmttkc/vet402-delivery cd vet402-delivery && npm ci npx tsx scripts/verify-receipt.ts https://kzmttkc.github.io/vet402-delivery/records/obs_2026-10-08_002066.json
All fields
| type | x402-observation |
|---|---|
| version | 0 |
| id | obs_2026-10-08_002066 |
| observer.id | did:web:vet402.com#obs-key-2026-09 |
| observer.address | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| observer.sequence | 2066 |
| issuedAt | 1791547974 |
| verdict.code | NOT_DELIVERED |
| verdict.reason | Payment settled; the seller answered HTTP 500. |
| verdict.recheck | null |
| verdict.checks.paymentSettled | true |
| verdict.checks.httpStatus | 500 |
| verdict.checks.bodyNonEmpty | null |
| verdict.checks.declaredFormatMatched | null |
| verdict.checks.sellerReceiptValid | null |
| verdict.checks.responseHashMatchesSeller | null |
| resourceUrl | https://api.xona-agent.com/token/pumpfun-trending |
| payment.network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payment.scheme | x402-exact |
| payment.transaction | 4yVfmYGW6RRKAFKbKsaBXVVSYpLq8Ts3RNgNqeD4sM3amnEcSUSF7A7NyV1H34LvaKE9BNwKK3ACXviBwCFVR535 |
| payment.payer | 9VaAPD1CPE4i8pquaRwE7LvZXMmvGdgffD4Q8xJgaQRu |
| payment.payTo | 9VaDVp1Wb78G4Wm6VuTiMrpESjrUymXefQTHcJGRSTEA |
| payment.asset | EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v |
| payment.amount | 100000 |
| payment.decimals | 6 |
| payment.assetSymbol | USDC |
| payment.settledAt | null |
| request.method | GET |
| request.url_hash | 0x14ee853f87e5ed09fc247e193e71b06e429c040b326dd2bb6a75569d3f62d21d |
| request.params_hash | 0xb12c27d9deb3091d6aecf802129278686171cdf4ae8fd318d12518e5caaff3b2 |
| request.params_salted | true |
| request.ts | 2026-10-08T14:44:53.465Z |
| response.status | 500 |
| response.responseHash | null |
| response.responseHashAlg | null |
| response.responseHashEncoding | null |
| response.responseHashNote | hash not recorded (the daily remeasure run does not hash the response) |
| response.contentType | null |
| response.bytes | null |
| response.receivedAt | null |
| response.latencyMs | null |
| offer | null |
| sellerReceipt | null |
| scope.proves.0 | observer-signed-at-time |
| scope.proves.1 | payment-on-chain |
| scope.proves.2 | response-status-at-time |
| scope.proves.3 | existed-by-anchor-time |
| scope.doesNotProve.0 | content-correctness |
| scope.doesNotProve.1 | seller-trustworthiness |
| scope.doesNotProve.2 | seller-availability-now |
| scope.doesNotProve.3 | refund-entitlement |
| scope.vantage | Seen from vet402's network only. |
| scope.text | Proves vet402 paid and what HTTP status came back at this time. Does not prove the content is correct. |
| notRecorded.0 | request.ts: the time recorded is when the spend was reserved, just before the paid request |
| notRecorded.1 | response.contentType |
| notRecorded.2 | response.bytes |
| notRecorded.3 | response.receivedAt |
| notRecorded.4 | response.latencyMs |
| notRecorded.5 | payment.settledAt |
| notRecorded.6 | declared output format (not checked in this run) |
| notRecorded.7 | response.responseHash: hash not recorded (the daily remeasure run does not hash the response) |
| source.dataset | remeasure-solana-2026-10-08 |
| source.row | rows[233] |
| contact | https://vet402.com/ |
| anchor.status | anchored |
| anchor.day | 2026-10-08 |
| anchor.network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| anchor.tx | 393jr9iYakjx3Vhhyzga7ZJSjMV7QG7Ej3qd7tps7oYKU7aQdmRWpbUkDLmNhqcQMEk29qKPugYm7FAnAnJcppVg |
| anchor.root | 0x9a873f3947d9b6c6e15760a241d7df306d94efb51245996870e87e444009ccd3 |
| anchor.leafIndex | 160 |
| anchor.proof.0 | 0x79b779d184df6fd3a0bb5c0931ce3deed29be3509a4300192b7fd0bd4309f126 |
| anchor.proof.1 | 0xfd36750d834e4784d5203eee74d324f1155bf655912b5e3c1faa9ce591ec5303 |
| anchor.proof.2 | 0xdaf074280b6d4cbf6662ac7844874c86505fff20b5a8a0ec909c1633d1e78c72 |
| anchor.proof.3 | 0x41a9b7c227c47aa327a902e7fa070c5f3b62da4fb29eb635e46c041154fc45f0 |
| anchor.proof.4 | 0xed773eb4f9295842ecde13a86a91a92b87bfbe015d1369be01c96efe4892cc56 |
| anchor.proof.5 | 0x0cc3e1b77928aa52c83d4394682b952e996f160dbf636c51d131b838bc5bd963 |
| anchor.proof.6 | 0x5fd8225e425dc3b133df30b36189bd588e9d5a187d2ac36feceb9c065d353701 |
| anchor.proof.7 | 0xa3120f4bf216d2cc78486f71da233032ab4a1dd695c853326b0bfc01005f5cfc |
| anchor.count | 205 |
| anchor.sequenceRange.0 | 1906 |
| anchor.sequenceRange.1 | 2110 |
| anchor.observerAddress | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| anchor.anchoredAt | 2026-10-09T12:22:08.000Z |
| corrections | [] |
| signature.format | eip712 |
| signature.signature | 0xa8212fc805b41d47fd38f693ba4822caef9e9117514079316d2ed452113cb93068c0896c4d41841bc55af88d7c0f840884d7fd6149465687d28fe0d8947e114a1b |
Not recorded by the run that made this observation:
- request.ts: the time recorded is when the spend was reserved, just before the paid request
- response.contentType
- response.bytes
- response.receivedAt
- response.latencyMs
- payment.settledAt
- declared output format (not checked in this run)
- response.responseHash: hash not recorded (the daily remeasure run does not hash the response)
Seller response (0)
None.
Correction history (0)
None.