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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-10-23 · today

merchant-production-c224.up.railway.app/v1/buy/sepolia

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://merchant-production-c224.up.railway.app/v1/buy/sepolia
Sourcecdp_bazaar
Declared methodGET
Catalog networkeip155:8453
Receiving address0xe1f831e0c4660841fec1fccb917adb588c5653ca
Declared price (base units)100000
Catalog statusactive
First seen / last seen2026-09-01 01:03 UTC / 2026-10-23 13:02 UTC
Catalog-reported calls / payers (30d)2 / 2

2.Probe history

2026-09-052026-10-23
Figure 1. Probe timeline, last 24 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
2026-10-23 22:40 UTCGETpass402273 ms—
2026-10-22 13:40 UTCGETfail4042279 msno_402HTTP 404 instead of 402 to an unpaid GET.
2026-10-20 22:40 UTCGETfail402390 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-19 13:40 UTCGETfail402489 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-17 22:40 UTCGETfail4021244 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-16 15:40 UTCGETfail402543 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-15 03:40 UTCGETfail402467 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-13 21:40 UTCGETfail402526 msprice_mismatchDeclared 180000 of 0x8335…2913; the 402 offered 130000 of 0x8335…2913, 130000 of EPjFWd…Dt1v.
2026-10-12 15:40 UTCGETpass402504 ms—
2026-10-11 15:40 UTCGETpass402435 ms—
2026-10-10 12:40 UTCGETpass402291 ms—
2026-10-09 12:40 UTCGETpass402481 ms—
2026-10-08 04:40 UTCGETpass402669 ms—
2026-10-07 04:40 UTCGETpass402738 ms—
2026-10-06 13:40 UTCGETpass402641 ms—
2026-09-29 10:30 UTCGETfail402391 msprice_mismatchDeclared 50000 of 0x8335…2913; the 402 offered 100000 of 0x8335…2913, 100000 of EPjFWd…Dt1v.
2026-09-29 07:38 UTCGETfail402216 msprice_mismatchDeclared 50000 of 0x8335…2913; the 402 offered 100000 of 0x8335…2913, 100000 of EPjFWd…Dt1v.
2026-09-28 10:30 UTCGETfail402259 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-23 10:30 UTCGETfail402308 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-19 11:24 UTCGETpass402266 ms—
2026-09-17 11:24 UTCGETpass402278 ms—
2026-09-13 11:24 UTCGETpass402296 ms—
2026-09-09 11:24 UTCGETpass402275 ms—
2026-09-05 11:24 UTCGETpass402305 ms—

3.L1 — real purchases

No paid purchases recorded for this endpoint yet.

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
2026-10-06relisted{"status":"delisted"}{"status":"active"}
2026-10-01delisted{"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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