Evidence row 292400

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Fetch one referring page and list every outbound link with its anchor text and dofollow/nofollow classification, so you can see how a site links out before requesting a link change.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Max links to return (default 50)",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          },
          "page_url": {
            "description": "Page URL, including https://",
            "type": "string"
          }
        },
        "required": [
          "page_url"
        ],
        "type": "object"
      },
      "name": "anchor_profile"
    },
    {
      "description": "Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "key": {
            "description": "License key from checkout, MCPL1.<payload>.<signature>",
            "type": "string"
          }
        },
        "required": [
          "key"
        ],
        "type": "object"
      },
      "name": "license_activate"
    },
    {
      "description": "Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "license_status"
    },
    {
      "description": "Check up to N referring pages against one target domain and return a per-URL table: HTTP status, dofollow/nofollow, anchor text, robots guards. Free tier: 3 URLs per call.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "page_urls": {
            "description": "Referring page URLs",
            "items": {
              "type": "string"
            },
            "minItems": 1,
            "type": "array"
          },
          "target_domain": {
            "description": "Domain the backlinks should point at",
            "type": "string"
          }
        },
        "required": [
          "page_urls",
          "target_domain"
        ],
        "type": "object"
      },
      "name": "link_audit"
    },
    {
      "description": "Fetch a referring page and report whether it links to the target domain, whether that link is dofollow or nofollow, the anchor text, HTTP status and robots guards (meta robots / X-Robots-Tag noindex, nofollow).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "page_url": {
            "description": "Referring page URL, including https://",
            "type": "string"
          },
          "target_domain": {
            "description": "Domain the backlink should point at, e.g. example.com",
            "type": "string"
          }
        },
        "required": [
          "page_url",
          "target_domain"
        ],
        "type": "object"
      },
      "name": "link_check"
    },
    {
      "description": "Batch link check for outreach follow-ups: pass up to 10 page URLs and your domain, get one line per page (status, linked or not, dofollow). Built for the Monday-morning question: which of the sites that promised a link actually shipped it?",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "page_urls": {
            "description": "Up to 10 page URLs, including https://",
            "items": {
              "type": "string"
            },
            "maxItems": 10,
            "minItems": 1,
            "type": "array"
          },
          "target_domain": {
            "description": "Your domain, e.g. example.com",
            "type": "string"
          }
        },
        "required": [
          "page_urls",
          "target_domain"
        ],
        "type": "object"
      },
      "name": "outreach_queue"
    },
    {
      "description": "Fetch a page and summarize the referring domain: HTTP status, indexability, outbound link count, and whether the target domain appears anywhere in the text (brand mention without a link).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "page_url": {
            "description": "Page URL, including https://",
            "type": "string"
          },
          "target_domain": {
            "description": "Domain to look for, linked or mentioned",
            "type": "string"
          }
        },
        "required": [
          "page_url",
          "target_domain"
        ],
        "type": "object"
      },
      "name": "referring_domain_summary"
    },
    {
      "description": "Fetch one URL and report HTTP status plus meta robots / X-Robots-Tag noindex and nofollow signals, without extracting links.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "Page URL, including https://",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "robots_guard_check"
    }
  ]
}

What the leaf hashes

{"body":"7560c40ffe76d4259187e3b60cf63f58a3982a0a750a6e1a516d7717c9f80687","id":292400,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793048756414022,"prev":null,"subject":"b936d56e-c630-4fed-88c3-3a641e027504","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. 0xe93223d1920397be6cc7cf332d3c5551e752e516cc417f7ebd435f03686d084e
2. 0x40064aab8d250b9b3c9aa39f43b4802b4eabe1453a4a76633ae27b3ded631db5
3. 0x50dbd485050342c3d2f315164ab5ef0edcaa336364d1d78b7a236e9a81e77ff2
4. 0x57ef16135c05661fc88a768d55f4b647f51e3a28c95113223c7ffb4c9ddae3d8
5. 0xb4ecf7e01cc2adfd90fab04d67650be8803dde7907ffba631ffc35dbd175ca25
6. 0xfb9be1854c4d6b5bf5c60f59a57b38c4bb70adeabc5b4e0bfe983e55dab01a4c
7. 0xe0207f6b9e00ed40253796db653d03edd053a610c9987666668b0ba2f32606c0
8. 0x2cda8cef42011ab22a52e81f3bde8fc087c3e9c5fc4a24806f2f2da1daf895e5
9. 0xe124d404c03042e75e9255498562a108d22f22cc4da79f88b159aebe7fc1f496
10. 0x35130b879dd64c383ed4810a48a0a89a89658ed812c5177a30ce52551f474534
11. 0x11f999a56e0d8cc7daa64e4903eb41d6078ed2b930cfcc1858070d91536f22ed
12. 0x3d0b5282d5282c30fc9f86662367cab01d0dba65f13d2968391a7d087b79dfb3
13. 0xafcc1fe54cfe00a3a1de33df127340075f22433bb89848bbc81499cd7aca5b2b
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae