Evidence row 61477

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agent.chiemgaufilms.com/api/v1/website-changes"
    ]
  ],
  "name": "Website Changes",
  "owner_address": "0x88c4de5f40c7b290d3d59a77718141082fe672d0",
  "raw": {
    "accepts": [
      {
        "amount": "25000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "paymentFlow": "upfront",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x88c4de5f40C7B290D3D59a77718141082FE672d0",
        "scheme": "exact"
      }
    ],
    "description": "Fetch one page once and compare its bounded main-topic text with a caller-supplied previous snapshot for the same URL. Reports added/removed lines. No scheduler, screenshots or whole-site crawl; no semantic price interpretation.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "previous": {
                "text": "Old example.",
                "url": "https://example.com/"
              },
              "url": "https://example.com/"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "added": {
                "count": 2,
                "lines": [
                  "Example Domain",
                  "Example page."
                ]
              },
              "changed": true,
              "changes_truncated": false,
              "comparison": "main-topic-text",
              "current": {
                "content_hash": "a9a1ad23561d3e57b1a85a39decd557a9f57e34dda0748c30f018d243e271e29",
                "fetched_at": "2026-10-24 10:00:00 +00:00",
                "headings": [
                  {
                    "level": 1,
                    "text": "Example Domain"
                  }
                ],
                "http_status": 200,
                "links": [
                  {
                    "text": "About",
                    "url": "https://example.com/about"
                  }
                ],
                "snapshot": {
                  "text": "Example Domain\nExample page.",
                  "url": "https://example.com/"
                },
                "text": "Example Domain\nExample page.",
                "title": "Example Domain",
                "truncated": false,
                "url": "https://example.com/"
              },
              "previous_hash": "7d7a5adae62d627f2f52d4bf8ae66801edb65502ec178f13f423bf670002a76e",
              "removed": {
                "count": 1,
                "lines": [
                  "Old example."
                ]
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "previous": {
                      "additionalProperties": false,
                      "properties": {
                        "text": {
                          "maxLength": 12000,
                          "type": "string"
                        },
                        "url": {
                          "description": "Public page URL to audit, e.g. https://example.com/pricing. IP addresses, ports and credentials are rejected.",
                          "maxLength": 2000,
                          "type": "string"
                        }
                      },
                      "required": [
                        "url",
                        "text"
                      ],
                      "type": "object"
                    },
                    "url": {
                      "description": "Public page URL to audit, e.g. https://example.com/pricing. IP addresses, ports and credentials are rejected.",
                      "maxLength": 2000,
                      "type": "string"
                    }
                  },
                  "required": [
                    "url",
                    "previous"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "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"
        }
      }
    },
    "lastUpdated": "2026-10-24T14:07:16.437Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-24T14:07:16.126Z"
    },
    "resource": "https://agent.chiemgaufilms.com/api/v1/website-changes",
    "serviceName": "Website Changes",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fetch one page once and compare its bounded main-topic text with a caller-supplied previous snapshot for the same URL. Reports added/removed lines. No scheduler, screenshots or whole-site crawl; no semantic price interpretation."
}

What the leaf hashes

{"body":"18db8bfdaf62f8df6b21d2d25e60292fea748802539aa25f1c7d2b867c4dfbac","id":61477,"kind":"listing","method":"baseline/1","observed_us":1793025450996543,"prev":null,"subject":"x402_bazaar:https://agent.chiemgaufilms.com/api/v1/website-changes","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. 0xf91cd7b3332c26fd9e6457fb37a1d834cdd13e09f823b2de7e6e4b1cf696cfc4
2. 0x6d35bdb85ccdea2f9c081e0e2e0ddda408df76bf867b0f0f53196c93b37b2cb1
3. 0xa8784bfeb322ff7f24d0db6ee9a9e02017d7cf6c8c43cd35c484990dd0a7f9f0
4. 0x742ff364baf0f49ecd57305d0763b6fd3f1e7d72f2373ce796c406109f0d0820
5. 0xcf0a05db2dc4f8d030e28153a4baa4faf3d17485632941ba5da41f54c33d23b0
6. 0x74d69c956dde6c3fe4207551a1b8b75a9e107fee0568ff039c183797a7c43d6a
7. 0x57864ec5dcb7860aa579f799e4027c83415eafffadcf8620a711178246ac4588
8. 0xb165db0e65b4433f43fac2e5d501b647c8ecf6d03024c057e3272e33051ff64f
9. 0x178f4c4219957c8eed2451198ada4c53ca17c5d35969baf77c14c8ad54aa5dde
10. 0x921ec909afaac455249717b3fffa2561a28344c6c4dc7a3f57f7c3f136978f87
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