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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-11-11 · today

twitter.use.x402atlas.com/list-followers

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://twitter.use.x402atlas.com/list-followers
Sourcecdp_bazaar
Declared methodGET
Catalog networkeip155:8453
Receiving address0x51d577c8cbb8b3fb1ba0ce31c7923cc27a07f78b
Declared price (base units)6000
Catalog statusactive
First seen / last seen2026-08-14 08:39 UTC / 2026-11-11 14:06 UTC
Catalog-reported calls / payers (30d)1 / 1

2.Probe history

2026-09-172026-11-11
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
2026-11-11 00:31 UTCGETpass402351 ms—
2026-10-09 12:40 UTCGETpass4027 ms—
2026-10-08 04:40 UTCGETpass40299 ms—
2026-10-07 04:40 UTCGETpass4021813 ms—
2026-10-06 04:41 UTCGETpass4025 ms—
2026-10-04 22:40 UTCGETpass40213 ms—
2026-10-04 04:40 UTCGETpass402133 ms—
2026-10-03 04:40 UTCGETpass402961 ms—
2026-10-02 13:40 UTCGETpass4028 ms—
2026-10-01 16:40 UTCGETfail40227 msprice_mismatchDeclared 5000 of 0x8335…2913; the 402 offered 6000 of 0x8335…2913, 6000 of 0x3c49…3359, 6000 of 0xaf88…5831, 6000 of EPjFWd…Dt1v.
2026-09-30 22:40 UTCGETfail4026 msprice_mismatchDeclared 5000 of 0x8335…2913; the 402 offered 6000 of 0x8335…2913, 6000 of 0x3c49…3359, 6000 of 0xaf88…5831.
2026-09-30 04:40 UTCGETfail40224 msprice_mismatchDeclared 5000 of 0x8335…2913; the 402 offered 6000 of 0x8335…2913, 6000 of 0x3c49…3359, 6000 of 0xaf88…5831.
2026-09-29 10:30 UTCGETfail40215 msprice_mismatchDeclared 5000 of 0x8335…2913; the 402 offered 6000 of 0x8335…2913, 6000 of 0x3c49…3359, 6000 of 0xaf88…5831.
2026-09-29 07:39 UTCGETfail402191 msprice_mismatchDeclared 5000 of 0x8335…2913; the 402 offered 6000 of 0x8335…2913, 6000 of 0x3c49…3359, 6000 of 0xaf88…5831.
2026-09-28 22:40 UTCGETfail40224 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-28 04:40 UTCGETfail402157 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-27 13:40 UTCGETfail402523 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-26 16:40 UTCGETfail402340 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-25 22:40 UTCGETfail40260 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-25 04:40 UTCGETfail402115 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-24 13:40 UTCGETfail40233 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-23 16:40 UTCGETfail40212 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-22 22:40 UTCGETfail40212 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-22 04:40 UTCGETfail402158 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-21 16:40 UTCGETfail40285 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-20 22:40 UTCGETfail402245 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-20 04:40 UTCGETfail40254 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-19 13:40 UTCGETfail40239 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-18 16:40 UTCGETfail4025 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-17 22:40 UTCGETfail40260 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).

3.L1 — real purchases

4 of 4 paid attempts settled on-chain, and 4 of those also returned a deliverable 2xx response (delivered: other than 202 Accepted with a non-empty body). 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 a 2xx other than 202 with a non-empty body. 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.
settled (amount + payee)
vet402 re-read the transfer on-chain in that chain's pinned settlement asset: the on-chain re-read matched payer, payee, amount and asset and did not bind a one-time value (rows before 2026-09-04, and Stellar).
L2 not_checked
not checked: the paid request did not answer 200, so there was no response to check against the listing's output schema.
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).
4/4
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
09-10 01:01settled (nonce-bound)2000x5ae32477…61edBase810 ms
5000 units (≈ $0.005 USDC) · L2 not_checked (recorded mismatch)Whose side: no failure (delivered)
09-01 12:07settled (amount + payee)2000x571bba89…808bBase1174 ms
5000 units (≈ $0.005 USDC) · L2 not_checked (recorded mismatch)Whose side: no failure (delivered)
08-25 12:53settled (amount + payee)2000x98cdffda…a68dBase662 ms
5000 units (≈ $0.005 USDC) · L2 not_checked (recorded mismatch)Whose side: no failure (delivered)
08-19 12:14settled (amount + payee)2000x41faf1f3…9c0aBase10710 ms
5000 units (≈ $0.005 USDC) · L2 not_checked (recorded mismatch)Whose side: no failure (delivered)

Embed this record

Run this endpoint? Show the settle-through record vet402 measured — the badge reads 4/4 settled · 4 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: 4 of 4 paid attempts settled with an on-chain receipt, and 4 of those also returned a deliverable HTTP 2xx response. settled is the confirmed transfer; delivered is a 2xx other than 202 with a non-empty body. A measurement of what happened when vet402 paid this endpoint, not a recommendation. (twitter.use.x402atlas.com · measured 2026-09-10)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/db40e163-d5b2-4660-9382-df3d1d3df7f0.svg)](https://vet402.com/observatory/e/db40e163-d5b2-4660-9382-df3d1d3df7f0)

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

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. Send the dispute to support@vet402.com. Published corrections are listed at /corrections. 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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