Evidence row 15756

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://sellat.app/api/v2/proofs"
    ]
  ],
  "name": "Sellat",
  "owner_address": "0xedeb27856ffb8c313931b2dce0f8375f27f4d87a",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xeDeb27856FfB8c313931B2DCE0f8375F27f4d87a",
        "scheme": "exact"
      }
    ],
    "description": "Timestamp and notarize any file or data by its SHA-256 hash: blockchain proof of existence and document integrity, anchored on Polygon in minutes and attested on Bitcoin (OpenTimestamps); blockchain notarization, not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove that exact data existed by now and is intact.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "hash": "62f9ea556738ce32cb740ea94b8ea1ba6355967065d7cb314a617a679d190091",
              "metadata": {
                "ref": "optional"
              },
              "name": "sellat-example-20261026141802-21a0e997.txt"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "anchoring": {
                "policy": "fast"
              },
              "api_key": "<shown once: read-only key for this wallet’s proofs>",
              "created": true,
              "hash": "<sha256>",
              "id": "<proof_id>",
              "next": "POST /api/v2/proofs/{id}/qualified adds the eIDAS qualified timestamp (RFC 3161) for 0.90 USD",
              "payment": {
                "amount_usd": "0.01",
                "charged": true,
                "transaction": "<tx hash on Base>"
              },
              "proof_id": "<proof_id: use it in POST /api/v2/proofs/{id}/qualified>",
              "state": "queued → anchored (minutes)",
              "urls": {
                "certificate": "https://sellat.app/certificate/<id>",
                "evidence_zip": "https://sellat.app/api/v2/proofs/<id>/evidence.zip",
                "proof_json": "https://sellat.app/api/v2/proof/<id>.json",
                "self": "https://sellat.app/api/v2/proofs/<id>"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "queryParams": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792345485/bazaar-icons/bde6353fd8b55735.png",
    "lastUpdated": "2026-10-26T14:18:02.915Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T11:34:46.031Z"
    },
    "resource": "https://sellat.app/api/v2/proofs",
    "serviceName": "Sellat",
    "tags": [
      "timestamp",
      "notarize",
      "proof-of-existence",
      "eidas",
      "qualified-timestamp"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Timestamp and notarize any file or data by its SHA-256 hash: blockchain proof of existence and document integrity, anchored on Polygon in minutes and attested on Bitcoin (OpenTimestamps); blockchain notarization, not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove that exact data existed by now and is intact."
}

What the leaf hashes

{"body":"f637ca43bd05162ee7dc9b5c83c5c38c116b1b17cc4c85bc8fd8f6fd2bf6eb08","id":15756,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025321457552,"prev":null,"subject":"x402_bazaar:https://sellat.app/api/v2/proofs","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. 0xf8a76966788c88f8a1e2668642ba0029c62d8602391116fdb3a17ec14e67279d
2. 0xdf9f38f5090c1941b180dbe8463812e6998e31fa3d64b2fdda78f09b4f259bce
3. 0xa62bb500fc8163b42547a3a734831a67703e913c2dea8d753d1129559108aec1
4. 0x31d050043fa8e2198dbf4e7e6043cee3a0cc0e21bdf8321cf341f0aa71e0f10d
5. 0x36c597150b7d714de876c54f5b209c8eb4b676a119c9a6d5daa9ca19f4091123
6. 0x8fb1884e0a1709d1079fa59746540c5c0899f817533e232312b968bcc54343b3
7. 0x5481bde020fb6149b41f081bb44ca01ae5f160c611a4bcad440d4f5a2f29e124
8. 0xe3d210fd9def9b0c32c4b7b41c0cb95425474a59d960cfd7f672dc849e59a521
9. 0xf66628a0d3140c444dce5159611601d48ff0b1f54e3cf2b722d1b1f0d78fbecc
10. 0xedbb756c6884e1e4b4d8aa27e3c5a9118300a1c763d183c08ab09c58ee11482f
11. 0xe3be477672f672ad65922159dceef6444408759f2808a7a1e1ba87146cf5eee0
12. 0xf7eba200f6f1012d700fcc53fc6d57dcafd1019c920b1030d42fa21d4af95d94
13. 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae