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Independent MeasurementEndpoint record (L0 · L1)Published state: withdrawnLast probed: 2026-09-27 · 27 days ago

trade-production-180b.up.railway.app/whales

Withdrawn from the catalog. This route is absent from a complete fetch of the public discovery catalog, so it is left out of the public L0 fail count.

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://trade-production-180b.up.railway.app/whales
Sourcecdp_bazaar
Declared methodGET
Catalog networkeip155:8453
Receiving address0x20d71310309b6a4982472f4a5eee131069a493a7
Declared price (base units)10000
Catalog statusdelisted (since 2026-09-28 01:02 UTC)
First seen / last seen2026-08-31 01:03 UTC / 2026-09-27 01:02 UTC
Catalog-reported calls / payers (30d)31 / 1

2.Probe history

2026-09-082026-09-27
Figure 1. Probe timeline, last 30 probes for this endpoint (UTC). Filled = pass, crossed = fail, dashed = unverified. Same-day probes overlap. Marks closer than one mark width are stepped down one lane.
L0 probe history, newest first
Probed atMethodVerdictHTTPLatencyReason
2026-09-27 22:40 UTCGETfail404452 msno_402HTTP 404 instead of 402 to an unpaid GET.
2026-09-27 04:40 UTCGETfail404307 msno_402HTTP 404 instead of 402 to an unpaid GET.
2026-09-26 13:40 UTCGETpass402148 ms—
2026-09-25 16:40 UTCGETpass40287 ms—
2026-09-24 22:40 UTCGETpass402167 ms—
2026-09-24 04:40 UTCGETpass402197 ms—
2026-09-23 13:40 UTCGETpass402155 ms—
2026-09-22 16:40 UTCGETpass402112 ms—
2026-09-21 22:40 UTCGETpass402285 ms—
2026-09-21 04:40 UTCGETpass4021817 ms—
2026-09-20 16:40 UTCGETpass402371 ms—
2026-09-19 22:40 UTCGETpass402578 ms—
2026-09-19 04:40 UTCGETpass402211 ms—
2026-09-18 13:40 UTCGETpass402373 ms—
2026-09-17 16:40 UTCGETpass402419 ms—
2026-09-17 04:40 UTCGETpass402234 ms—
2026-09-16 13:40 UTCGETpass402167 ms—
2026-09-15 13:40 UTCGETpass402179 ms—
2026-09-14 22:40 UTCGETpass402436 ms—
2026-09-14 04:40 UTCGETpass4022077 ms—
2026-09-13 16:40 UTCGETpass402322 ms—
2026-09-12 22:40 UTCGETpass402199 ms—
2026-09-12 13:40 UTCGETpass402175 ms—
2026-09-11 22:40 UTCGETpass402383 ms—
2026-09-11 04:40 UTCGETpass402163 ms—
2026-09-10 17:40 UTCGETpass402187 ms—
2026-09-10 05:40 UTCGETpass402229 ms—
2026-09-09 14:40 UTCGETpass40278 ms—
2026-09-08 23:40 UTCGETpass402241 ms—
2026-09-08 14:40 UTCGETpass402233 ms—

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 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 mismatch
the content type was not JSON although the listing marks required keys, or the body read in full did not parse as JSON, was JSON but not an object or array, or lacked a key the listing marks as required.
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).
1/1
Figure 2. Settle-through: one cell per paid attempt. Filled = settled on-chain, crossed = signed, and not settled on-chain.
L1 purchase history, newest first
Attempted atResultHTTPOn-chain txPayment chainLatency
09-06 01:00settled (nonce-bound)2000x3e7365bb…33a5Base1764 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.

vet402: 1 of 1 paid attempts settled with an on-chain receipt, and 1 of those also returned a 2xx response. settled is the confirmed transfer; delivered is the response arriving. A measurement of what happened when vet402 paid this endpoint, not a recommendation. (trade-production-180b.up.railway.app · measured 2026-09-06)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/7c5e6e72-53fe-4713-adb3-3efd53c9797a.svg)](https://vet402.com/observatory/e/7c5e6e72-53fe-4713-adb3-3efd53c9797a)

Get one email when this record's verdict changes. No digest, no marketing — one message per change, and only for this endpoint. We first send one confirmation email; nothing else goes out until you confirm.

4.Catalog listing events

Catalog listing events, newest first
Detected onEventBeforeAfter
2026-09-28delisted{"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. This listing is not active in the catalog, so a dispute filed on the record form does not put it on the re-probe list. The record stays on this page. The scheduled L0 run is at 10:30 UTC. This listing is not on that run. 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.

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