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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-10-04 · today

coil.trade/api/crypto/day

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://coil.trade/api/crypto/day
Sourcecdp_bazaar
Declared methodGET
Networkeip155:8453
Receiving address0x7b53524d5c5d29efb8c1d128c56f62fe38cd9476
Declared price (base units)5000
Catalog statusactive
First seen / last seen2026-08-20 01:30 UTC / 2026-10-03 01:04 UTC
Catalog-reported calls / payers (30d)6 / 3

2.Probe history

2026-09-132026-10-04
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
2026-10-04 16:40 UTCGETpass402462 ms—
2026-10-03 22:40 UTCGETpass402590 ms—
2026-10-02 22:40 UTCGETpass402624 ms—
2026-10-02 04:40 UTCGETpass402839 ms—
2026-10-01 13:40 UTCGETpass402184 ms—
2026-09-30 16:40 UTCGETpass402196 ms—
2026-09-29 16:40 UTCGETpass402396 ms—
2026-09-29 04:40 UTCGETpass402445 ms—
2026-09-28 13:40 UTCGETpass402561 ms—
2026-09-27 16:40 UTCGETpass402346 ms—
2026-09-26 22:40 UTCGETpass402411 ms—
2026-09-26 04:40 UTCGETpass402425 ms—
2026-09-25 13:40 UTCGETpass402594 ms—
2026-09-24 16:40 UTCGETpass402657 ms—
2026-09-23 22:40 UTCGETpass402644 ms—
2026-09-23 04:40 UTCGETpass402212 ms—
2026-09-22 13:40 UTCGETpass402515 ms—
2026-09-21 16:40 UTCGETpass402560 ms—
2026-09-20 22:40 UTCGETpass402277 ms—
2026-09-20 04:40 UTCGETpass402620 ms—
2026-09-19 13:40 UTCGETpass402349 ms—
2026-09-18 22:40 UTCGETpass402394 ms—
2026-09-18 04:40 UTCGETpass402553 ms—
2026-09-17 13:40 UTCGETpass402158 ms—
2026-09-16 16:40 UTCGETpass402175 ms—
2026-09-15 22:40 UTCGETpass4022418 ms—
2026-09-15 04:40 UTCGETpass402531 ms—
2026-09-14 16:40 UTCGETpass402515 ms—
2026-09-13 22:40 UTCGETpass402260 ms—
2026-09-13 13:40 UTCGETpass402414 ms—

3.L1 — real purchases

3 of 3 paid attempts settled on-chain, and 3 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).
3/3
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
09-17 15:28settled (nonce-bound)2000x1ebb7285…8c162314 ms
5000 units (≈ $0.005 USDC) · L2 mismatchWhose side: no failure (delivered)
09-11 12:08settled (nonce-bound)2000x664e8d36…41b62208 ms
5000 units (≈ $0.005 USDC) · L2 mismatchWhose side: no failure (delivered)
09-05 01:00settled (nonce-bound)2000x2397a5ca…60ec1790 ms
5000 units (≈ $0.005 USDC) · L2 mismatchWhose side: no failure (delivered)

Embed this record

Run this endpoint? Show the settle-through record vet402 measured — the badge reads 3/3 settled · 3 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: 3 of 3 paid attempts settled with an on-chain receipt, and 3 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. (coil.trade · measured 2026-09-17)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/1b31626f-2723-419e-aaf3-3af542c015c5.svg)](https://vet402.com/observatory/e/1b31626f-2723-419e-aaf3-3af542c015c5)

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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coil.trade/api/crypto/day — x402 purchase and probe record | vet402