Evidence row 2199904

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, data or AI agent log by its SHA-256 hash: blockchain proof of existence and integrity for tamper-evident audit trails, anchored on Polygon in minutes, then Bitcoin (OpenTimestamps); not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove exact data or an agent record existed and is intact.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "hash": "ba6eaceebd0657d84b76decc9562689dabef87be8b5233aa7371e775b3b77e6e",
              "metadata": {
                "ref": "optional"
              },
              "name": "sellat-example-20261102181112-5bd65257.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": "2026-11-02T18:11:13.446Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-26T14:18:02.261Z"
    },
    "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, data or AI agent log by its SHA-256 hash: blockchain proof of existence and integrity for tamper-evident audit trails, anchored on Polygon in minutes, then Bitcoin (OpenTimestamps); not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove exact data or an agent record existed and is intact."
}

What the leaf hashes

{"body":"fc928969f8254dc7dae423fa2a46219e559e48a2bf76eb21650993ad25b2f0e9","id":2199904,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646793514224,"prev":278823,"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 2026-11-02 (444186 rows).

1. 0xb70a8e8df09f4f5d6bb21bf7dc98cc4ddce0ed5800845a6d52871d98bdc75279
2. 0xfd9bfaac4315dc4b3b009ec4eb306716d5f5896a3a1f0065dc480c9d6835046e
3. 0x9e5d861c4b2f9461cb128335dbdf9536bfd6ff093241ec10994474058b959dfc
4. 0x56078b52c1624b22ce2cca605b4fb3ea66857b8d9ed3687a6f3abe9c1ae971e6
5. 0x6f0c7d3314fb36d810ea72a9a8b8a73293958b97e12454870450202d14e907ed
6. 0x095120ce56a75578f02cd47d84ef73904b26b4fd088865e0f80d2283a18d5856
7. 0xf02709529f9091e801c83c24ad800d0f56a8151cb29b31e403a4199a14371fa2
8. 0xebba9ff2fa70dae6336f4209fe00df72b187089c12fca9c97a2ca2119f73868f
9. 0x12dffd752989bc73bdcbdb7790f279306a1bc272b03a0270d113b85b3b558f66
10. 0xb98d8ab2de88a64a5a05bd9310daf0094f915f0006234efcc88c6d6faa65491c
11. 0xb90715a9e02eae65281cf69fec6269cca4f892eb446184da6ee783020656c01f
12. 0x1e746a5fe19cb9ec0a19b0ddff5c240ad1117a5db0999c1e01fe8f1235d88e30
13. 0x030e61e00342e920981555e2e665fa5ec4a741b10a078f282daa829896c87583
14. 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af