api.hergertsynthora.com/v1/stablecoin-supply
1.Catalog declaration
| Resource URL | https://api.hergertsynthora.com/v1/stablecoin-supply |
| Source | cdp_bazaar |
| Declared method | POST |
| Catalog network | eip155:8453 |
| Receiving address | 0x6d9f318463168ff637b50e5b9a21392e97c7c167 |
| Declared price (base units) | 10000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:39 UTC / 2026-10-25 01:02 UTC |
| Catalog-reported calls / payers (30d) | 5 / 2 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-10-25 06:40 UTC | POST | pass | 402 | 127 ms | — |
| 2026-10-17 22:40 UTC | POST | fail | 402 | 340 ms | metadata_mismatchDeclared payTo 0xef87…5e06 on eip155:8453; the 402 offered 0x6D9F…c167 on eip155:8453. |
| 2026-10-16 15:40 UTC | POST | fail | 402 | 366 ms | metadata_mismatchDeclared payTo 0xef87…5e06 on eip155:8453; the 402 offered 0x6D9F…c167 on eip155:8453. |
| 2026-10-15 03:40 UTC | POST | fail | 402 | 414 ms | metadata_mismatchDeclared payTo 0xef87…5e06 on eip155:8453; the 402 offered 0x6D9F…c167 on eip155:8453. |
| 2026-10-13 21:40 UTC | POST | fail | 402 | 404 ms | metadata_mismatchDeclared payTo 0xef87…5e06 on eip155:8453; the 402 offered 0x6D9F…c167 on eip155:8453. |
| 2026-10-12 15:40 UTC | POST | pass | 402 | 349 ms | — |
| 2026-10-11 15:40 UTC | POST | pass | 402 | 373 ms | — |
| 2026-10-10 15:40 UTC | POST | pass | 402 | 415 ms | — |
| 2026-10-09 15:40 UTC | POST | pass | 402 | 479 ms | — |
| 2026-10-08 04:40 UTC | POST | pass | 402 | 489 ms | — |
| 2026-10-07 13:40 UTC | POST | pass | 402 | 539 ms | — |
| 2026-10-06 04:41 UTC | POST | fail | 410 | 386 ms | no_402HTTP 410 instead of 402 to an unpaid POST. |
| 2026-10-04 16:40 UTC | POST | pass | 402 | 452 ms | — |
| 2026-10-03 22:40 UTC | POST | pass | 402 | 641 ms | — |
| 2026-10-03 04:40 UTC | POST | pass | 402 | 487 ms | — |
| 2026-10-02 04:40 UTC | POST | pass | 402 | 716 ms | — |
| 2026-10-01 13:40 UTC | POST | pass | 402 | 142 ms | — |
| 2026-09-30 16:40 UTC | POST | pass | 402 | 327 ms | — |
| 2026-09-29 22:40 UTC | POST | pass | 402 | 149 ms | — |
| 2026-09-29 04:40 UTC | POST | pass | 402 | 239 ms | — |
| 2026-09-28 13:40 UTC | POST | pass | 402 | 391 ms | — |
| 2026-09-27 16:40 UTC | POST | pass | 402 | 364 ms | — |
| 2026-09-26 22:40 UTC | POST | pass | 402 | 1412 ms | — |
| 2026-09-26 04:40 UTC | POST | pass | 402 | 562 ms | — |
| 2026-09-25 13:40 UTC | POST | pass | 402 | 348 ms | — |
| 2026-09-24 16:40 UTC | POST | fail | 402 | 489 ms | price_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change). |
| 2026-09-23 22:40 UTC | POST | fail | 402 | 354 ms | price_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change). |
| 2026-09-23 04:40 UTC | POST | fail | 402 | 395 ms | price_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change). |
| 2026-09-22 13:40 UTC | POST | fail | 402 | 475 ms | price_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change). |
| 2026-09-21 16:40 UTC | POST | fail | 402 | 383 ms | price_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change). |
3.L1 — real purchases
4 of 4 paid attempts settled on-chain, and 4 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 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.
settled (amount + payee)- vet402 re-read the transfer on-chain in that chain's pinned settlement asset: the on-chain re-read matched payer, payee, amount and asset and did not bind a one-time value (rows before 2026-09-04, and Stellar).
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 |
|---|---|---|---|---|---|
| 09-10 07:022026-09-10 07:02 UTC | settled (nonce-bound) | 200 | 0xcbc22492…aca1 | Base | 1858 ms |
| 10000 units (≈ $0.01 USDC) · L2 no_declarationWhose side: no failure (delivered) | |||||
| 08-31 12:072026-08-31 12:07 UTC | settled (amount + payee) | 200 | 0x05e0b508…1a30 | Base | 2421 ms |
| 6000 units (≈ $0.006 USDC) · L2 no_declarationWhose side: no failure (delivered) | |||||
| 08-24 23:342026-08-24 23:34 UTC | settled (amount + payee) | 200 | 0xdafda6fb…f19f | Base | 2207 ms |
| 6000 units (≈ $0.006 USDC) · L2 no_declarationWhose side: no failure (delivered) | |||||
| 08-17 12:492026-08-17 12:49 UTC | settled (amount + payee) | 200 | 0x0af8a2c9…6f97 | Base | 1566 ms |
| 6000 units (≈ $0.006 USDC) · L2 no_declarationWhose side: no failure (delivered) | |||||
Embed this record
Run this endpoint? Show the settle-through record vet402 measured — the badge reads 4/4 settled · 4 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/b8f9de05-4f04-49d3-b197-d5f8c02b4570)4.Catalog listing events
| Detected on | Event | Before | After |
|---|---|---|---|
| 2026-10-25 | relisted | {"status":"delisted"} | {"status":"active"} |
| 2026-10-07 | relisted | {"status":"delisted"} | {"status":"active"} |
| 2026-10-06 | delisted | {"status":"active"} | {"status":"delisted"} |
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.