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_2026-10-07_001862 (the same place as corrections to the ranking), or send the id to https://vet402.com/.
3 checks
- ✓Payment0.1 USDC on Solana · 4tWKgT…mP1x ↗
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 2026-10-07 root, written on Solana · 5PShzu…oq3r ↗ also in the observation_roots program on Solana · DhQY5f…JqJ3 ↗ and on Tempo · 0x6243…c3de ↗
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_2026-10-07_001862.json
All fields
| type | x402-observation |
|---|---|
| version | 0 |
| id | obs_2026-10-07_001862 |
| observer.id | did:web:vet402.com#obs-key-2026-09 |
| observer.address | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| observer.sequence | 1862 |
| issuedAt | 1791421567 |
| 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 | 4tWKgTrsCT3W1DJBM42HpHEjS1cioTZB8Cw673CLmy42kvhAuzWMMQw9GMvbQmNT6DvrniTonaE9wEqeK8cMmP1x |
| 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 | 0xc7ebdc290c24e39c49cd4ae95b71d321bc188dcf67bed38f966f84ecf3cfe77a |
| request.params_salted | true |
| request.ts | 2026-10-07T14:31:52.672Z |
| 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-2026-10-07 |
| source.row | rows[233] |
| contact | https://vet402.com/ |
| anchor.status | anchored |
| anchor.day | 2026-10-07 |
| anchor.network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| anchor.tx | 5PShzuRcxYE6oVLBPYjQaC9jTqro9YFNPq38LpEj2nuYN8cqBE7mD7nwekeGDb2P58X5nvA7pvCDXkBGHMtAoq3r |
| anchor.root | 0x99b7cfa560395314617035d28622a9857c688389d33be74a8bfe3a9029043b03 |
| anchor.leafIndex | 154 |
| anchor.proof.0 | 0xd5625473cfc5293f1e832cf66d11248b500309191f0e045bd0d59d53fdbad2b3 |
| anchor.proof.1 | 0xe42e441446d77507b1c5d9eaac033d6a82c805111b9a7e2b4b178b3a80dbbe5c |
| anchor.proof.2 | 0x550899260b96da5bb0cedc21e23a4fdecbdb7bb75e1e952c64a7bb3246b17b0c |
| anchor.proof.3 | 0xe8d80bcf2b22c69636945137596d3f32a5679b9b611729b9799487f2928c0276 |
| anchor.proof.4 | 0xae38af8c998301514f487aad8185406fce098bdcd2c259bc9a131d8cff0d779d |
| anchor.proof.5 | 0xaa23d4a3b791581f14cba26fcd1efbf4f29ee13dbd72c9619f22ee42589f3a75 |
| anchor.proof.6 | 0x7ae5384133101b3010fa3dd50276cfdcca36a320d9f169beb5cbdea67ef18c8b |
| anchor.proof.7 | 0x8288bad36496a472aaa7c404029ff07cf6be2a5278c162595171825530d5867d |
| anchor.count | 198 |
| anchor.sequenceRange.0 | 1708 |
| anchor.sequenceRange.1 | 1905 |
| anchor.observerAddress | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| anchor.anchoredAt | 2026-10-08T01:16:27.000Z |
| corrections | [] |
| signature.format | eip712 |
| signature.signature | 0x32e30d2f8c133680d703974694fbfa48f0f1f87db1c5b920b9a40860c0dc9edc53c4777a496aded1748cca0092dc06b67e15547fd304b30afae7ce4d8663ec151b |
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.