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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-10-18 · 2 days ago

api.newsgurus.ai/x402/stocks/rankings

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://api.newsgurus.ai/x402/stocks/rankings
Sourcecdp_bazaar
Declared methodGET
Networkeip155:8453
Receiving address0xa9a38639ed4aebc04092e21f3399c56545450713
Declared price (base units)250000
Catalog statusactive
First seen / last seen2026-08-21 01:57 UTC / 2026-10-20 01:01 UTC
Catalog-reported calls / payers (30d)1 / 1

2.Probe history

2026-09-212026-10-18
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
2026-10-18 22:40 UTCGETpass402271 ms—
2026-10-17 16:40 UTCGETpass402182 ms—
2026-10-15 21:40 UTCGETpass402139 ms—
2026-10-14 15:40 UTCGETpass402181 ms—
2026-10-13 15:40 UTCGETpass402522 ms—
2026-10-12 03:40 UTCGETpass4021369 ms—
2026-10-11 03:40 UTCGETpass402143 ms—
2026-10-10 03:40 UTCGETpass402217 ms—
2026-10-08 22:40 UTCGETpass402135 ms—
2026-10-07 22:40 UTCGETpass402225 ms—
2026-10-06 22:40 UTCGETpass402360 ms—
2026-10-05 22:40 UTCGETpass40298 ms—
2026-10-04 16:40 UTCGETpass402265 ms—
2026-10-03 22:40 UTCGETpass402219 ms—
2026-10-03 04:40 UTCGETpass402321 ms—
2026-10-02 04:40 UTCGETpass402590 ms—
2026-10-01 13:40 UTCGETpass402259 ms—
2026-09-30 16:40 UTCGETpass402195 ms—
2026-09-29 22:40 UTCGETpass402367 ms—
2026-09-29 04:40 UTCGETpass402148 ms—
2026-09-28 13:40 UTCGETpass402505 ms—
2026-09-27 16:40 UTCGETpass402188 ms—
2026-09-26 22:40 UTCGETpass402292 ms—
2026-09-26 04:40 UTCGETpass402172 ms—
2026-09-25 13:40 UTCGETpass402237 ms—
2026-09-24 16:40 UTCGETpass402185 ms—
2026-09-23 22:40 UTCGETpass402163 ms—
2026-09-23 04:40 UTCGETpass402105 ms—
2026-09-22 13:40 UTCGETpass402139 ms—
2026-09-21 22:40 UTCGETpass402562 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 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).
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 txLatency
09-06 01:02settled (nonce-bound)2000x911d3b4a…e3e61829 ms
250000 units (≈ $0.25 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. (api.newsgurus.ai · measured 2026-09-06)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/ebfe6ac8-4224-40e2-90d9-6c835af8affd.svg)](https://vet402.com/observatory/e/ebfe6ac8-4224-40e2-90d9-6c835af8affd)

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

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.

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