Evidence row 2203605

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://fetch.halowerk.com/batch/extract"
    ]
  ],
  "name": "fetchwerk Web Extraction",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "8000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Extract up to ten URLs in one paid call.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "format": "markdown",
              "urls": [
                "https://example.com/",
                "https://www.iana.org/help/example-domains"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "failed_count": 1,
              "items": [
                {
                  "ok": true,
                  "title": "A",
                  "url": "https://example.com/a",
                  "word_count": 420
                },
                {
                  "error": "fetch_failed",
                  "ok": false,
                  "url": "https://example.com/b"
                }
              ],
              "ok_count": 1
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "format": {
                      "default": "markdown",
                      "enum": [
                        "markdown",
                        "text",
                        "html"
                      ],
                      "type": "string"
                    },
                    "max_chars": {
                      "default": 200000,
                      "maximum": 400000,
                      "minimum": 500,
                      "type": "integer"
                    },
                    "urls": {
                      "items": {
                        "format": "uri",
                        "type": "string"
                      },
                      "maxItems": 10,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "urls"
                  ],
                  "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": "2026-11-02T14:57:27.009Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T14:57:26.607Z"
    },
    "resource": "https://fetch.halowerk.com/batch/extract",
    "serviceName": "fetchwerk Web Extraction",
    "tags": [
      "web-extraction",
      "url-to-markdown",
      "readability",
      "scraping",
      "rag-ingest"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Extract up to ten URLs in one paid call."
}

What the leaf hashes

{"body":"80b2c8f2ef3a97a52ce9f918cacbde11c4349531cc3d99e7db4613cb7cbc33cb","id":2203605,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646886861300,"prev":null,"subject":"x402_bazaar:https://fetch.halowerk.com/batch/extract","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. 0xfe6d6dd9857a448cd47a57c58c815566e1c5967b94705fa6065cad4b7812fb7b
2. 0x0f5888cf8aabd4730ac9618c7f5c463a0dfe793a8c9af7855c9936dc7823e8dd
3. 0x0e1eecfb785ccbadb78e484d8ac944a677a97f958fb70dceb7615b21862af0d9
4. 0xe9944472cd793d430d603a7a3d50306ecf2e7fa246c3e2226f5bbf2151050437
5. 0x4f6555d768e2fea9a26be3fe0066ef919e1d0894a65595782701bf77f780aa92
6. 0x551d16eb3354bb22fa151e3cc3f1b892bcc90f40936f8740a104b014392b02fd
7. 0x6bf288455dd7d1a6d32308ee27b1971a7a723c935047268df8663fff35bfbf08
8. 0xff3b83c3aaebab26d23cfdff7592823859af6499a388532e0c59fea88218c80d
9. 0x845e5b1cc8315caa3b98e19dd3fe044491deeb9eedf828ec195bff79167a74bc
10. 0xc07a3284aef49e4a59807c6eaf528f425c05c24076b55920863f01634d2f1137
11. 0xc63b418076930e6cf31674e9bb2aff65f2cbb33dd9be3957737f5ffee6c7510a
12. 0x558609da34276e08016027f0ba334013ad7a47d8258758a41e477a91a04eb076
13. 0x2612b2a6ca482d4e1e568f2a6d1980f6401f76dd9a2480fd196bb762b9e1c71c
14. 0x59ed3c823c7507ae1b2993d19eda543383739dde961b25c4e0927023fff6be12
15. 0x4068a4306db47ea0eae5f76e5137753caa3dbb132dca6a61a4d6c1838a52700f
16. 0x25127db2e775737b2874f6a159f7c1bf984317eea6482e94589c3ef4c5ccab32
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af