defi.hugen.tokyo/defi/stablecoins
1.Catalog declaration
| Resource URL | https://defi.hugen.tokyo/defi/stablecoins |
| Source | cdp_bazaar |
| Declared method | GET |
| Network | eip155:8453 |
| Receiving address | 0x29322ea7ecb34aa6164cb2ddeb9ce650902e4f60 |
| Declared price (base units) | 10000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:52 UTC / 2026-10-03 01:04 UTC |
| Catalog-reported calls / payers (30d) | 2 / 1 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-10-04 13:40 UTC | GET | pass | 402 | 908 ms | — |
| 2026-10-03 16:40 UTC | GET | pass | 402 | 679 ms | — |
| 2026-10-02 22:40 UTC | GET | pass | 402 | 837 ms | — |
| 2026-10-01 22:40 UTC | GET | pass | 402 | 597 ms | — |
| 2026-10-01 04:40 UTC | GET | pass | 402 | 969 ms | — |
| 2026-09-30 13:40 UTC | GET | pass | 402 | 728 ms | — |
| 2026-09-29 16:40 UTC | GET | pass | 402 | 643 ms | — |
| 2026-09-28 22:40 UTC | GET | pass | 402 | 599 ms | — |
| 2026-09-28 04:40 UTC | GET | pass | 402 | 772 ms | — |
| 2026-09-27 13:40 UTC | GET | pass | 402 | 2402 ms | — |
| 2026-09-26 16:40 UTC | GET | pass | 402 | 669 ms | — |
| 2026-09-25 22:40 UTC | GET | pass | 402 | 2635 ms | — |
| 2026-09-25 04:40 UTC | GET | pass | 402 | 685 ms | — |
| 2026-09-24 16:40 UTC | GET | pass | 402 | 1040 ms | — |
| 2026-09-23 22:40 UTC | GET | pass | 402 | 658 ms | — |
| 2026-09-23 04:40 UTC | GET | pass | 402 | 731 ms | — |
| 2026-09-22 13:40 UTC | GET | pass | 402 | 653 ms | — |
| 2026-09-21 16:40 UTC | GET | pass | 402 | 644 ms | — |
| 2026-09-20 22:40 UTC | GET | pass | 402 | 682 ms | — |
| 2026-09-20 04:40 UTC | GET | pass | 402 | 733 ms | — |
| 2026-09-19 13:40 UTC | GET | pass | 402 | 644 ms | — |
| 2026-09-18 16:40 UTC | GET | pass | 402 | 656 ms | — |
| 2026-09-17 22:40 UTC | GET | pass | 402 | 907 ms | — |
| 2026-09-17 13:40 UTC | GET | pass | 402 | 1127 ms | — |
| 2026-09-16 11:24 UTC | GET | pass | 402 | 538 ms | — |
| 2026-09-12 11:24 UTC | GET | pass | 402 | 198 ms | — |
| 2026-09-08 11:24 UTC | GET | pass | 402 | 215 ms | — |
| 2026-09-03 11:24 UTC | GET | pass | 402 | 202 ms | — |
| 2026-09-01 11:24 UTC | GET | fail | 402 | 229 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
1 of 1 paid attempts settled on-chain, and 1 of those also returned a 2xx response (delivered). 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 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 5xx counts as settled and not as delivered — definitions.
Terms in this table
settled (nonce-bound)- vet402 confirmed the USDC transfer on-chain, and the on-chain re-read also matched the one-time nonce vet402 signed for that purchase.
L2 mismatch- the response lacked fields the listing's output schema declares.
Whose side- the same words as the seller page: seller's side only after failures on two different days (UTC), marked “under re-check”; vet402's side; or not sorted (the rules).
| Attempted at | Result | HTTP | On-chain tx | Latency |
|---|---|---|---|---|
| 09-17 12:072026-09-17 12:07 UTC | settled (nonce-bound) | 200 | 0x3d9cbd27…19bb | 2204 ms |
| 10000 units (≈ $0.01 USDC) · L2 mismatchWhose 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/a47d9520-3444-4f65-9307-8150005f905e)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.