Evidence row 3873

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://stampthisfile.com/v1/stamps"
    ]
  ],
  "name": "stampthisfile.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "stampthisfile.com",
    "endpoints": [
      {
        "description": "Timestamp SHA-256 hashes in Bitcoin with OpenTimestamps: returns a standard .ots proof per hash (pending, complete within hours), verifiable without us",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "hashes",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "stampthisfile",
        "tags": [
          "timestamp",
          "opentimestamps",
          "bitcoin",
          "proof-of-existence",
          "hash"
        ],
        "url": "https://stampthisfile.com/v1/stamps"
      }
    ],
    "enriched": false,
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792529635/bazaar-icons/19fe92af849b00dd.png",
    "id": "stampthisfile-com",
    "integrationType": "",
    "isNew": false,
    "name": "stampthisfile.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.05",
      "currency": "USDC",
      "maxAmount": "0.05",
      "minAmount": "0.05"
    },
    "provider": "stampthisfile.com",
    "providerUrl": "",
    "serviceName": "stampthisfile",
    "tags": [
      "timestamp",
      "opentimestamps",
      "bitcoin",
      "proof-of-existence",
      "hash"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"9b71ea26b269da245dff5436b7c14c4995454fd8bf015f59cc523bca739527c7","id":3873,"kind":"listing","method":"baseline/1","observed_us":1793025276326268,"prev":null,"subject":"agentic_market:stampthisfile-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x4667f8514c96c421bbcaa5533d64b3acdcbf9e0fcbe162dc7c93fbee3c32d78f
2. 0x033160db6073355c9b03f56973d88e1234a2be74bdaa67e41db7837173db15d1
3. 0x360ec497b813d78890444fabf351e9bcb271c907d905a50a6d0d311b972a51b5
4. 0x388b09db2df5a1a3742c430b62d2ed13f5f768297b93a737a6a6d679f5e2721f
5. 0x8b5558e44a1181ec991c1fe52557927af31f1a1c9a3918088e0eabc5f2d9b767
6. 0x9fc3bea37c7ca3d8ded368dab63368dc29fdf4aca5facd292a96fc2332a62ff6
7. 0x450c49d5ba2affed1e851482090301cd3421ac11a03dc13fc436511e4967998b
8. 0x1a0ae552182b3ba0e43b62760a9788529b07468cf5b44587b2a25ab152404fc2
9. 0x4bfe8740166ab95fa564100b6bd0a7cddbf3f30b1a26b5ac329927d9b7e82c64
10. 0xdc7dda1200bf02188f12be23ee59ca8c8b9224b74d678936dffe5bc067401e58
11. 0xdbfd78a5599cc272407d120acb838567e0679d241216572c603e875a5947fb2e
12. 0x804dd9d5afe0f1a780e24099fb6b21f5f20545893ea0eeddf5fb9114e2f3edd5
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae