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_2026-10-10_002339 (the same place as corrections to the ranking), or send the id to https://vet402.com/.
3 checks
- ✓Payment0.1 USDC on Solana · 5DrzjW…a8oY ↗
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 2026-10-10 root, written on Solana · 5ei9As…SEV5 ↗ also in the observation_roots program on Solana · 4tDfo9…H9u7 ↗ and on Tempo · 0xe057…4bc2 ↗
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_2026-10-10_002339.json
All fields
| type | x402-observation |
|---|---|
| version | 0 |
| id | obs_2026-10-10_002339 |
| observer.id | did:web:vet402.com#obs-key-2026-09 |
| observer.address | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| observer.sequence | 2339 |
| issuedAt | 1791680929 |
| 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 | 5DrzjWQseLAni2yYGQELYAbHrG8jgPothzE3estgedr3DduBNChGn7DuDhTCcj69JqE3K8BLzD9Z7CVc9p5sa8oY |
| 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 | 0xa49922b4ff361c7a1bd0a37886432775def67b8e7a981f5189605fc6ce70aa57 |
| request.params_salted | true |
| request.ts | 2026-10-10T02:24:08.190Z |
| 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-2026-10-10 |
| source.row | rows[45] |
| contact | https://vet402.com/ |
| anchor.status | anchored |
| anchor.day | 2026-10-10 |
| anchor.network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| anchor.tx | 5ei9AsxMTyXCiCEKgrPqcmoKa1JEmmvb8c2Qv9tdSbRNk1cJByBkqEm5nFLyYPDr6kbRK97PUZX37C8dYktnSEV5 |
| anchor.root | 0x4ceab8b9dc7f378533d59ad4a6dec5825aa1826596be1aef95dd77c029641b54 |
| anchor.leafIndex | 42 |
| anchor.proof.0 | 0x93163f32a106407b31124a228287db2690ef01ad4fabb163cde07ed5f9852a25 |
| anchor.proof.1 | 0x3a5509131bdd2665b6c9d6c19bc0866243a134cb95ffc8edb003e466914fa502 |
| anchor.proof.2 | 0x3d1af21b8ba866e361967b72412a1758984f1e48845a327bd3ed8458586d0a69 |
| anchor.proof.3 | 0x7175067dbd42fdfefe9aac17299becb2f06a940e3689813605b8df2d1696e582 |
| anchor.proof.4 | 0xbb659f51bc479a0ef6f98f0f5108fd2025f9b0c61bcaa82ed4a35fb96ca25ab7 |
| anchor.proof.5 | 0xd1d2bbfa5f792d16569cd7f1a65c597ebd56cae9853eeec0df22863f34818fc7 |
| anchor.proof.6 | 0x87113e50408c03d99347b569a4e2ac31b1149f195ed66f160286504a048a76c9 |
| anchor.proof.7 | 0x40465a3c5b6167022b3abb2d900562f7fa657c605a5eba5775d6af6ed38426d6 |
| anchor.count | 202 |
| anchor.sequenceRange.0 | 2297 |
| anchor.sequenceRange.1 | 2498 |
| anchor.observerAddress | 0x6232335B5264f7aa62a51f8ACc4676D22511Ff3C |
| anchor.anchoredAt | 2026-10-12T05:27:03.000Z |
| corrections | [] |
| signature.format | eip712 |
| signature.signature | 0xcb8bcbb151c29856b33ba56b412ec2a0bfdd2d3222ddfe971ad4d8f2e63c28a3500df411295c45d91e791e879c30669b63a6bdfacf3b44c79d8d000406e345801b |
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.