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

api.hergertsynthora.com/v1/stablecoin-supply

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://api.hergertsynthora.com/v1/stablecoin-supply
Sourcecdp_bazaar
Declared methodPOST
Networkeip155:8453
Receiving address0xef879bfd6c4accb8f795136de90246e1ec245e06
Declared price (base units)10000
Catalog statusactive
First seen / last seen2026-08-14 08:39 UTC / 2026-09-09 01:03 UTC
Catalog-reported calls / payers (30d)10 / 6

2.Probe history

2026-08-172026-09-09
Figure 1. Probe timeline, last 17 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
2026-09-09 14:40 UTCPOSTpass402562 ms
2026-09-08 17:40 UTCPOSTfail402510 msprice_mismatch
2026-09-08 05:40 UTCPOSTfail402553 msprice_mismatch
2026-09-07 17:40 UTCPOSTfail402487 msprice_mismatch
2026-09-07 05:40 UTCPOSTfail402379 msprice_mismatch
2026-09-06 17:40 UTCPOSTfail402467 msprice_mismatch
2026-09-06 05:40 UTCPOSTfail402364 msprice_mismatch
2026-09-05 17:40 UTCPOSTfail402413 msprice_mismatch
2026-09-05 05:40 UTCPOSTfail402306 msprice_mismatch
2026-09-04 17:40 UTCPOSTfail402844 msprice_mismatch
2026-09-04 05:40 UTCPOSTfail402406 msprice_mismatch
2026-09-03 17:40 UTCPOSTfail402336 msmetadata_mismatch
2026-09-03 05:40 UTCPOSTpass402545 ms
2026-09-02 17:40 UTCPOSTpass402409 ms
2026-09-02 05:40 UTCPOSTpass402270 ms
2026-09-01 23:40 UTCPOSTpass402256 ms
2026-08-17 10:39 UTCPOSTpass402312 ms

3.L1 — real purchases

3 of 3 paid attempts settled with a receipt, and 3 of those also returned a 2xx response (delivered). Each settled row carries its on-chain transaction hash — the receipt is the evidence. 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.

3/3
Figure 2. Settle-through: one cell per paid attempt. Filled = settled with an on-chain receipt, crossed = paid but no receipt.
L1 purchase history, newest first
Attempted atResultHTTPReceipt (tx)Latency
08-31 12:07settled (amount + payee)2000x05e0b508…1a302421 ms
6000 units (≈ $0.006 USDC) · L2 no_declaration
08-24 23:34settled (amount + payee)2000xdafda6fb…f19f2207 ms
6000 units (≈ $0.006 USDC) · L2 no_declaration
08-17 12:49settled (amount + payee)2000x0af8a2c9…6f971566 ms
6000 units (≈ $0.006 USDC) · L2 no_declaration

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. (api.hergertsynthora.com · measured 2026-08-31)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/b8f9de05-4f04-49d3-b197-d5f8c02b4570.svg)](https://vet402.com/observatory/e/b8f9de05-4f04-49d3-b197-d5f8c02b4570)

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.

api.hergertsynthora.com/v1/stablecoin-supply — L0 observations | vet402