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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-09-04 · today

2s.io/api/gov/usgs-water

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://2s.io/api/gov/usgs-water
Sourcecdp_bazaar
Declared methodGET
Networkeip155:8453
Receiving address0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5
Declared price (base units)6000
Catalog statusactive
First seen / last seen2026-08-14 08:52 UTC / 2026-09-05 01:03 UTC
Catalog-reported calls / payers (30d)1 / 1

2.Probe history

2026-08-302026-09-04
Figure 1. Probe timeline, last 8 probes for this endpoint (UTC). Filled = pass, crossed = fail, dashed = unverified. Same-day probes overlap.
L0 probe history, newest first
Probed atMethodVerdictHTTPLatencyReason
2026-09-04 23:40 UTCGETpass402134 ms
2026-09-04 14:40 UTCGETpass40270 ms
2026-09-03 23:40 UTCGETpass402210 ms
2026-09-03 14:40 UTCGETpass402106 ms
2026-09-02 23:40 UTCGETpass40292 ms
2026-09-02 14:40 UTCGETpass40287 ms
2026-09-02 05:40 UTCGETpass402120 ms
2026-08-30 11:24 UTCGETfail40280 msaccepts_invalid

3.L1 — real purchases

No covert 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.

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.