Evidence row 265230

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Fetch a public web page and return its main content as clean Markdown with title, description, headings and extraction metadata. Removes navigation, ads, cookie banners and scripts. Does not execute JavaScript. Paid via x402 ($0.003 per successful call; the first 5 successful calls per day are free). Returns JSON (structuredContent + text) with schemaVersion, operation, requestedUrl, finalUrl, title, description, markdown, headings[{level,text}], truncated, extraction{method,statusCode,contentType,charset,redirects,bytesFetched,characters,totalCharacters,words,warnings,durationMs}.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "includeLinks": {
            "description": "Keep hyperlinks and images in the Markdown (default true). When false, link text is kept as plain text.",
            "type": "boolean"
          },
          "maxCharacters": {
            "description": "Maximum Markdown characters to return (default 20000, max 100000).",
            "maximum": 100000,
            "minimum": 100,
            "type": "integer"
          },
          "url": {
            "description": "Absolute public http:// or https:// URL. Default ports only; no credentials; no IP literals.",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "extract_url"
    },
    {
      "description": "Fetch a public web page and return structured data: page metadata (title, description, canonical URL, language, site name, byline), main content Markdown, ordered headings with levels, and links (text + URL). Deterministic HTML processing, no LLM. Paid via x402 ($0.005 per successful call; the first 5 successful calls per day are free). Returns JSON with schemaVersion, operation, requestedUrl, finalUrl, metadata{title,description,canonicalUrl,language,siteName,byline,publishedTime}, markdown, headings, headingsTruncated, links[{text,url}], linksTruncated, truncated, extraction{...}.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "includeLinks": {
            "description": "Keep hyperlinks and images in the Markdown (default true). When false, link text is kept as plain text.",
            "type": "boolean"
          },
          "maxCharacters": {
            "description": "Maximum Markdown characters to return (default 20000, max 100000).",
            "maximum": 100000,
            "minimum": 100,
            "type": "integer"
          },
          "url": {
            "description": "Absolute public http:// or https:// URL. Default ports only; no credentials; no IP literals.",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "extract_url_structured"
    },
    {
      "description": "Free, lightweight check of a public URL: reachability, HTTP status, final URL after redirects, content type, page title, and whether extraction is likely to work. Downloads at most a small prefix of the page.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "Absolute public http:// or https:// URL. Default ports only; no credentials; no IP literals.",
            "maxLength": 2048,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "inspect_url"
    }
  ]
}

What the leaf hashes

{"body":"768d4aa0e0e7288eae8813844b7334fe6b085f2271c89c9e6ff1e73203be5974","id":265230,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793034685718474,"prev":null,"subject":"d4f9dc39-31eb-4631-84d9-de6e07b65147","subject_kind":"endpoint"}

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. 0x0b4c56b44d02c960c70b856acb096d1f8efe6b266ffdab077168e74d89b5b086
2. 0x57b109a73048359699d751fb8af071848b50a1b70174215740051c1fe8b6f6ca
3. 0x97949ab8ea717fa72221f79478ff5186eba57c66b7ac06552e6bdbde5f22f368
4. 0x2fc4a795cfb56ea5b07296d0139fa0c7ef2b94fa45aa9bb38818aca180b6eec4
5. 0xb6e7e0b6cfa79709458cc426034776960a3bb61ed1841f7d8c0207267d068bf4
6. 0xc387cff76fa691c9f15ae3959555c4342763af8dd6f5905c91139bec2c35739e
7. 0x9ab65b33b6ad5af96603b06b4ee05a6c517ffb8904271f2655ecf2755a984bcc
8. 0x8c958e9fc0433c1f3ef58cded1bafd27f5248645d8c820b9da52eb9679a3db34
9. 0xd83877ac63a961b0129a97a80da7a77dea06dab1654464985a8bb3d4fd340afc
10. 0x0317d9c853b2cffa1fdc2c62014a377dfdfb03f28f46b665e5f3801b32d539fd
11. 0xb590404cb9438c769f672be0f0089b46b380374a2b3728911a35efd8d94b6a83
12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae