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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-10-21 · today

squeezeos-api.onrender.com/api/web/extract-once

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://squeezeos-api.onrender.com/api/web/extract-once
Sourcecdp_bazaar
Declared methodGET
Catalog networkeip155:8453
Receiving address0xc29185fa176357612f3194735753e520e91adc46
Declared price (base units)5000
Catalog statusactive
First seen / last seen2026-09-03 01:04 UTC / 2026-10-21 13:01 UTC
Catalog-reported calls / payers (30d)7 / 5

2.Probe history

2026-09-052026-10-21
Figure 1. Probe timeline, last 12 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
2026-10-21 04:40 UTCGETpass402319 ms—
2026-10-19 16:40 UTCGETpass402425 ms—
2026-10-18 04:40 UTCGETpass402274 ms—
2026-10-16 21:40 UTCGETpass402333 ms—
2026-10-04 10:31 UTCGETpass402105 ms—
2026-09-28 10:30 UTCGETpass402165 ms—
2026-09-23 10:31 UTCGETpass402365 ms—
2026-09-19 11:24 UTCGETpass402264 ms—
2026-09-17 11:24 UTCGETpass402267 ms—
2026-09-13 11:24 UTCGETpass402317 ms—
2026-09-09 11:24 UTCGETpass402285 ms—
2026-09-05 11:24 UTCGETpass402155 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 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).
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
10-17 18:01settled (nonce-bound)2000xf09b1bc0…b35aBase2053 ms
5000 units (≈ $0.005 USDC) · L2 no_declarationWhose 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. (squeezeos-api.onrender.com · measured 2026-10-17)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/f710d4f3-7da7-41e4-a771-288ae041f8d7.svg)](https://vet402.com/observatory/e/f710d4f3-7da7-41e4-a771-288ae041f8d7)

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

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. 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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squeezeos-api.onrender.com/api/web/extract-once — x402 purchase and probe record | vet402