x402-tools.vercel.app/api/concerts
1.Catalog declaration
| Resource URL | https://x402-tools.vercel.app/api/concerts |
| Source | cdp_bazaar |
| Declared method | GET |
| Network | eip155:8453 |
| Receiving address | 0xbad1aa224bfe4feb460e12b2553dcdf98a7098d0 |
| Declared price (base units) | 10000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:52 UTC / 2026-09-05 01:03 UTC |
| Catalog-reported calls / payers (30d) | 5 / 3 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-09-04 23:40 UTC | GET | pass | 402 | 138 ms | — |
| 2026-09-04 14:40 UTC | GET | pass | 402 | 77 ms | — |
| 2026-09-03 23:40 UTC | GET | pass | 402 | 149 ms | — |
| 2026-09-03 14:40 UTC | GET | pass | 402 | 134 ms | — |
| 2026-09-02 23:40 UTC | GET | pass | 402 | 409 ms | — |
| 2026-09-02 14:40 UTC | GET | pass | 402 | 98 ms | — |
| 2026-09-02 05:40 UTC | GET | pass | 402 | 183 ms | — |
| 2026-08-30 11:24 UTC | GET | fail | 402 | 125 ms | accepts_invalid |
3.L1 — real purchases
1 of 1 paid attempts settled with a receipt, and 1 of those also returned a 2xx response (delivered). Each settled row carries its on-chain transaction hash — the receipt is the evidence. A settled row reads as nonce-bound when the on-chain re-read also matched the one-time signature nonce we generated for that purchase, and amount + payee when it matched amount, payee, asset and chain with no nonce on record — the binding shipped on 2026-09-04, so earlier rows carry the weaker evidence and keep their label rather than being demoted (methodology). settled is the transfer we confirmed on-chain; delivered is the response arriving. A settled row whose paid request answered 4xx or 5xx counts as settled and not as delivered — definitions.
| Attempted at | Result | HTTP | Receipt (tx) | Latency |
|---|---|---|---|---|
| 09-03 07:012026-09-03 07:01 UTC | settled (amount + payee) | 200 | 0x11b76af4…45cc | 1681 ms |
| 10000 units (≈ $0.01 USDC) · L2 no_declaration | ||||
Embed this record
Run this endpoint? Show the settle-through record vet402 measured — the badge reads 1/1 settled · 1 delivered and updates as the record grows. It states a measurement, not a rating.
[](https://vet402.com/observatory/e/145aa49e-8f83-4765-b832-d5ba9e6f3687)4.Catalog listing events
No listing changes observed.
unverified is not a failure; a fail is published only after two consecutive failing probes. Definitions: methodology.
5.Dispute this record
Think a measurement above is wrong? Say which probe or purchase and what you observed instead. One person reads it and replies. The record is never deleted on dispute: if it was wrong, the correction is published with the same weight; if it was right, it stands. Operators who control the receiving address can also sign a dispute via POST /api/v1/observatory/disputes (API reference), which re-measures through the normal publication gate.