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

kari.mayim-mayim.com/api/bazaar/surface_comparison_facts

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://kari.mayim-mayim.com/api/bazaar/surface_comparison_facts
Sourcecdp_bazaar
Declared methodPOST
Catalog networkeip155:8453
Receiving address0x788b4ca11950879550353d8ae82d1c0af6018454
Declared price (base units)10000
Catalog statusactive
First seen / last seen2026-08-14 08:39 UTC / 2026-10-21 13:01 UTC
Catalog-reported calls / payers (30d)4 / 4

2.Probe history

2026-09-222026-10-21
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
2026-10-21 16:40 UTCPOSTpass402238 ms—
2026-10-20 04:40 UTCPOSTpass402653 ms—
2026-10-18 16:40 UTCPOSTpass402380 ms—
2026-10-17 13:40 UTCPOSTpass402435 ms—
2026-10-15 21:40 UTCPOSTpass402714 ms—
2026-10-14 15:40 UTCPOSTpass402838 ms—
2026-10-13 03:40 UTCPOSTpass4023279 ms—
2026-10-12 03:40 UTCPOSTpass402529 ms—
2026-10-11 03:40 UTCPOSTpass4021309 ms—
2026-10-09 21:40 UTCPOSTpass4022290 ms—
2026-10-08 16:40 UTCPOSTpass402262 ms—
2026-10-07 16:40 UTCPOSTpass402289 ms—
2026-10-06 16:40 UTCPOSTpass402320 ms—
2026-10-05 22:40 UTCPOSTpass402338 ms—
2026-10-04 13:40 UTCPOSTpass402657 ms—
2026-10-03 16:40 UTCPOSTpass402868 ms—
2026-10-02 22:40 UTCPOSTpass4021060 ms—
2026-10-01 22:40 UTCPOSTpass402708 ms—
2026-10-01 04:40 UTCPOSTpass4021350 ms—
2026-09-30 13:40 UTCPOSTpass402839 ms—
2026-09-29 16:40 UTCPOSTpass4021061 ms—
2026-09-28 22:40 UTCPOSTpass402837 ms—
2026-09-28 04:40 UTCPOSTpass402797 ms—
2026-09-27 13:40 UTCPOSTpass4021005 ms—
2026-09-26 16:40 UTCPOSTpass402729 ms—
2026-09-25 22:40 UTCPOSTpass4022724 ms—
2026-09-25 04:40 UTCPOSTpass402819 ms—
2026-09-24 13:40 UTCPOSTpass402709 ms—
2026-09-23 16:40 UTCPOSTpass402360 ms—
2026-09-22 22:40 UTCPOSTpass4021006 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
09-18 12:08settled (nonce-bound)2000x4be3a78c…e941Base4324 ms
10000 units (≈ $0.01 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. (kari.mayim-mayim.com · measured 2026-09-18)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/87a6eda9-44f9-418c-970f-0301176387bc.svg)](https://vet402.com/observatory/e/87a6eda9-44f9-418c-970f-0301176387bc)

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
2026-09-17relisted{"status":"delisted"}{"status":"active"}
2026-09-12delisted{"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. 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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