mechamanda.com/api/concerts
1.Catalog declaration
| Resource URL | https://mechamanda.com/api/concerts |
| Source | cdp_bazaar |
| Declared method | GET |
| Catalog network | eip155:8453 |
| Receiving address | 0xbad1aa224bfe4feb460e12b2553dcdf98a7098d0 |
| Declared price (base units) | 10000 |
| Catalog status | active |
| First seen / last seen | 2026-09-15 01:03 UTC / 2026-10-31 16:05 UTC |
| Catalog-reported calls / payers (30d) | 8 / 8 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-10-31 13:40 UTC | GET | pass | 402 | 126 ms | — |
| 2026-10-29 13:40 UTC | GET | pass | 402 | 136 ms | — |
| 2026-10-27 13:40 UTC | GET | pass | 402 | 296 ms | — |
| 2026-10-25 18:40 UTC | GET | pass | 402 | 140 ms | — |
| 2026-10-23 16:40 UTC | GET | pass | 402 | 150 ms | — |
| 2026-10-22 04:40 UTC | GET | pass | 402 | 2045 ms | — |
| 2026-10-20 16:40 UTC | GET | pass | 402 | 149 ms | — |
| 2026-10-19 13:40 UTC | GET | pass | 402 | 598 ms | — |
| 2026-10-01 10:30 UTC | GET | pass | 402 | 81 ms | — |
| 2026-09-26 10:30 UTC | GET | pass | 402 | 92 ms | — |
| 2026-09-21 11:24 UTC | GET | pass | 402 | 134 ms | — |
| 2026-09-17 16:19 UTC | GET | pass | 402 | 222 ms | — |
| 2026-09-15 11:24 UTC | GET | pass | 402 | 179 ms | — |
3.L1 — real purchases
1 of 1 paid attempts settled on-chain, and 1 of those also returned a deliverable 2xx response (delivered: other than 202 Accepted with a non-empty body). Each settled row carries its on-chain transaction hash, and that transaction is the evidence. On this page a receipt means the seller's own settlement receipt (PAYMENT-RESPONSE); a settled row can have none (see “tx from our index”). A settled row reads as nonce-bound when the on-chain re-read matched the one-time value stored for that purchase, so the transaction is the one for this purchase. Stellar is not in this count. The Stellar re-read checks payer, payee, amount and asset. A row reads as amount + payee when the re-read matched payer, payee, amount and asset and did not bind a one-time value. That tier holds rows from before 2026-09-04 and Stellar rows. They keep the settled label rather than being demoted (methodology). settled is the transfer vet402 confirmed on-chain. delivered is the response arriving. A settled row whose paid request answered 5xx counts as settled and not as delivered. definitions.
Terms in this table
settled (nonce-bound)- vet402 re-read the transfer on-chain in that chain's pinned settlement asset, and the on-chain re-read matched the one-time value stored for that purchase, so the transaction is the one for this purchase. Stellar is not in this count.
L2 no_declaration- the listing's output schema gave vet402 nothing to check this response against (no schema, a schema with no required keys and no example properties, or example properties with a content type that is not JSON). An output example the seller puts in the 402 (extensions.bazaar.info.output.example) is not checked yet.
Whose side- the same words as the seller page: seller's side only after failures on two different days (UTC), marked “attribution under review”; vet402's side; or not sorted (the rules).
| Attempted at | Result | HTTP | On-chain tx | Payment chain | Latency |
|---|---|---|---|---|---|
| 10-20 09:312026-10-20 09:31 UTC | settled (nonce-bound) | 200 | 0xc3e76e0b…fa08 | Base | 1287 ms |
| 10000 units (≈ $0.01 USDC) · L2 no_declarationWhose side: no failure (delivered) | |||||
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 carries the host it is about and the date it was last measured, so a saved copy cannot pass itself off as current. It states a measurement, not a rating.
[](https://vet402.com/observatory/e/ba831e28-4696-4751-b7d9-41e849700a80)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
A dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.
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. A dispute filed on the record form puts an active listing on a priority list. L0 runs probe that list before their ordinary queue, one run at a time. A listing whose URL has an unfilled path parameter is not put on that list. One run measures up to 50 priority listings, at most 5 from one site. Published fails whose catalog declaration changed, or that rest on probes recorded under earlier rules, take places first, and disputes fill the places left. A listing probed in the past 60 minutes waits for a later run. A dispute that no run reaches within 7 days leaves the list. The scheduled L0 run is at 10:30 UTC, and an L0 run at another time can measure the listing first. The record stays on this page. When a run measures the listing, the new probe is added to its history. Send the dispute to support@vet402.com. Published corrections are listed at /corrections. Operators who control the receiving address can also sign a dispute via POST /api/v1/observatory/disputes (API reference). That route runs one fresh L0 check under the normal publication gate. A later purchase comes from the regular schedule.