x402-v2-mint-datacite-doi-lookup.vercel.app
Main route checked: POST https://x402-v2-mint-datacite-doi-lookup.vercel.app/v1/datacite-doi-lookup
Category: Other · Listing terms not shown (found through a directory we use only to find services) · Found in: cdp-bazaar, 402index-bazaar
Last check: 24 min ago · Recent checks with a valid payment request: 20/20 · Median response 203 ms
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Raw data · simple view · Badge: 
402 Challenge Checks
49 valid 402s checked: terms consistent 49, Base USDC offered 49, payTo changed vs previous check 0.
Daily History (Signed Aggregates, JSON)
| UTC Day | Checks | Valid 402 | Median ms | Quoted Amounts | PayTo Seen | Archive |
|---|---|---|---|---|---|---|
| 2026-10-30 | 12 | 12 | 277 | 20059 | 1 | part lines 5392-5403 |
Automatic Unpaid Checks (Newest First, Up To 200)
Raw receipts are kept 7 days in the live database, then in the archive.
| Receipt | UTC Time | Method | Status | Valid 402 | ms | Listed Amount (Atomic) | Quoted Amount (Atomic) | Quoted PayTo | Header Bytes | Response sha256 | Signed | Route | Checks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 098c0611d2fdc959cff5 | 2026-10-31T21:36:21Z | POST | 402 | yes | 204 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 9478e3b37b7682c700c0 | 2026-10-31T21:00:33Z | POST | 402 | yes | 185 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| f12729d682aa9b7e10dd | 2026-10-31T20:26:16Z | POST | 402 | yes | 354 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| bfca4a3b90e9c62f3072 | 2026-10-31T19:50:21Z | POST | 402 | yes | 148 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 71a0e53b3bcedc2517fe | 2026-10-31T19:16:19Z | POST | 402 | yes | 553 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 2dc2a95167e654149c14 | 2026-10-31T18:40:23Z | POST | 402 | yes | 203 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 9bc646f792dd4422b374 | 2026-10-31T18:12:39Z | POST | 402 | yes | 260 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 807dd97fb73ac051f0e6 | 2026-10-31T17:38:27Z | POST | 402 | yes | 90 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| f9feb9180130c1488aa8 | 2026-10-31T17:04:35Z | POST | 402 | yes | 690 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 175acd4d17fbb4456465 | 2026-10-31T16:30:28Z | POST | 402 | yes | 545 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| fd6cea49fc0c0379cca3 | 2026-10-31T15:56:19Z | POST | 402 | yes | 249 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 145b38701393799bcb01 | 2026-10-31T15:22:14Z | POST | 402 | yes | 182 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| e0998a61e5529de880cb | 2026-10-31T14:46:51Z | POST | 402 | yes | 352 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 6425128f147c05de08d1 | 2026-10-31T14:12:25Z | POST | 402 | yes | 198 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 48599562da458975dd93 | 2026-10-31T13:38:19Z | POST | 402 | yes | 160 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 62e0bbdc1bd0f65082d3 | 2026-10-31T13:04:17Z | POST | 402 | yes | 247 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 88c02956ffd8df066662 | 2026-10-31T12:30:14Z | POST | 402 | yes | 131 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 21d8a0e0e88b1fc7559a | 2026-10-31T11:54:32Z | POST | 402 | yes | 157 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| e3eaf7ffe93546c09784 | 2026-10-31T11:20:33Z | POST | 402 | yes | 125 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| da4a156a217b5ed43f52 | 2026-10-31T10:46:19Z | POST | 402 | yes | 136 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 1891db59d81ae69f593b | 2026-10-31T10:12:18Z | POST | 402 | yes | 145 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| f5e393c219e4c7354909 | 2026-10-31T09:38:20Z | POST | 402 | yes | 568 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| d59237d9c9c14d92ddad | 2026-10-31T09:04:14Z | POST | 402 | yes | 238 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 53636ac6c5b1b90a0eaf | 2026-10-31T08:28:28Z | POST | 402 | yes | 144 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 7437497aa3c0f950c96f | 2026-10-31T07:54:25Z | POST | 402 | yes | 207 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| c913d199a9b545343ced | 2026-10-31T07:20:18Z | POST | 402 | yes | 203 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 6e75d57f9b99c78eddf9 | 2026-10-31T06:46:17Z | POST | 402 | yes | 199 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 57efc084fc5bf122a16d | 2026-10-31T06:12:14Z | POST | 402 | yes | 85 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 2108d0c04aa6cb9da54c | 2026-10-31T05:36:39Z | POST | 402 | yes | 421 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 6dec08bbea76aef2310b | 2026-10-31T05:02:34Z | POST | 402 | yes | 436 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 55bc8c1d2a4ca71dc8ba | 2026-10-31T04:28:20Z | POST | 402 | yes | 102 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| febbb4b22594e5f7d911 | 2026-10-31T03:54:17Z | POST | 402 | yes | 348 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 08d80c29b0fa1de9d3a5 | 2026-10-31T03:20:16Z | POST | 402 | yes | 241 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| bd947c32d8a31f3d3085 | 2026-10-31T02:46:14Z | POST | 402 | yes | 170 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 76a0893ec39931cab2de | 2026-10-31T01:36:38Z | POST | 402 | yes | 676 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| e5b0319fefb3e61c957e | 2026-10-31T01:02:29Z | POST | 402 | yes | 826 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 12decc18e92264ba0d72 | 2026-10-31T00:28:17Z | POST | 402 | yes | 175 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| a1b513518f21db613bc1 | 2026-10-30T23:54:16Z | POST | 402 | yes | 6321 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 6d1af73315f8b5f5715a | 2026-10-30T23:18:36Z | POST | 402 | yes | 556 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 06e942bb5ecac0262d4e | 2026-10-30T22:44:26Z | POST | 402 | yes | 111 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 12cb04831febd83ad6fa | 2026-10-30T22:10:27Z | POST | 402 | yes | 299 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 04b3dcbb4c4cc2390997 | 2026-10-30T21:36:17Z | POST | 402 | yes | 112 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 97ec0a829f778492b761 | 2026-10-30T21:02:16Z | POST | 402 | yes | 6690 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 455fb4682a590ec6311c | 2026-10-30T20:28:14Z | POST | 402 | yes | 279 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 26f1f08b7c8ae3ab07ac | 2026-10-30T19:52:31Z | POST | 402 | yes | 277 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 725598eb84d459211ef8 | 2026-10-30T19:18:25Z | POST | 402 | yes | 223 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| dbd4301be3914962a595 | 2026-10-30T18:44:21Z | POST | 402 | yes | 214 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| 392d77e9e639471dc249 | 2026-10-30T18:10:53Z | POST | 402 | yes | 180 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
| b4bc0a6ccbd1408d056a | 2026-10-30T17:36:14Z | POST | 402 | yes | 122 | – | 20059 | 0xc22f9CAE… | 2064 | b058863312d1c912 | per-receipt | main | terms ok · Base USDC |
Seller? Reply or dispute. Amounts are in the asset's atomic units (USDC: 6 decimals).