Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-09-25 · 4 days ago
x402.ottoai.services/trending-altcoins
1.Catalog declaration
| Resource URL | https://x402.ottoai.services/trending-altcoins |
| Source | cdp_bazaar |
| Declared method | GET |
| Network | eip155:8453 |
| Receiving address | 0x0e84ddedaae6a779c462c22a59f301ec31b6b808 |
| Declared price (base units) | 2000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:39 UTC / 2026-09-29 01:02 UTC |
| Catalog-reported calls / payers (30d) | 25 / 20 |
2.Probe history
2026-08-142026-09-25
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-09-25 10:30 UTC | GET | pass | 402 | 225 ms | — |
| 2026-09-21 11:24 UTC | GET | pass | 402 | 348 ms | — |
| 2026-09-17 12:35 UTC | GET | pass | 402 | 100 ms | — |
| 2026-09-14 11:24 UTC | GET | pass | 402 | 213 ms | — |
| 2026-09-10 11:24 UTC | GET | pass | 402 | 260 ms | — |
| 2026-09-07 11:24 UTC | GET | pass | 402 | 393 ms | — |
| 2026-09-02 11:24 UTC | GET | pass | 402 | 738 ms | — |
| 2026-08-14 08:52 UTC | GET | fail | 402 | 145 ms | accepts_invalid402 without a payable accept in the header or the body (which part was missing was not recorded before the 2026-09-29 change). |
3.L1 — real purchases
No paid purchases recorded for this endpoint yet.
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.