Evidence row 278823

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": 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 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":"91676f5ae91972e80e3e01acd1561abd80904d8273fed686033453c653103a5f","id":278823,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042079857907,"prev":15756,"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. 0x9ac9d6990b933c4aa5feb29a616d61f21e0eb75f2a7f98395fe1ded356fd1fef
2. 0x50130c6c4986ad0bc32e2979e799e2603220cda844b3f4289a0f55ccc9d530c2
3. 0xe139fda02bbd8b84f676d2b671ed2c1ff15453096853a5371807833e2c559cf1
4. 0x8c9514e6557a73766affda96998db7afde5f9bca1996554048a4ac528965420f
5. 0x03be4bce51ae3441b3a40e2e2aefe97329cd1ffef8680869f6b84d4af916bde2
6. 0xacc7e92a2f9209173ad29cbb51aabcb49232df7f29a12d65052e15d5dbb61620
7. 0xcf3041ddbea40314de83c5a4178817fdca09af5d40e061d250c5984f78b9e4f3
8. 0xdda6ae09fbd8e01fd3343cba323dc26d2479aed8607a029f775d23acb7ec7acc
9. 0x3f633c7b92468c8018a53ff43d62a3f84dde7a80b96c682fd1e24807a7161edb
10. 0xf6875e1a5b7fad4e83ba62e2cff960aa72810186bc672e4064792557da09184e
11. 0x2c3b7cfe0eedcaf62de3a3cb4a2c0ef97e866e6e41191a5ffb58de967e516348
12. 0xfee33ee0189dc82c649bd0324796a297b897507b2fddbbe2eff331c40c960ce2
13. 0x239fd39716710e7412bd120c373072b4c0d8b11bb9ee431dad62a2ce57b3d6f4
14. 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae