Evidence row 3361480

What was observed

{
  "count": 11,
  "tools": [
    {
      "description": "Get one published academy course by its slug, with its objectives, lessons and FAQ. Exam questions and answers are never returned.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The course slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_course"
    },
    {
      "description": "Get one published driving school by its slug.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The listing slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_listing"
    },
    {
      "description": "Get one affiliate product by its slug, with its page and outbound link.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The product slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_product"
    },
    {
      "description": "Get the number of published driving schools, places and categories, and when the data last changed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_stats"
    },
    {
      "description": "List categories with their driving school counts.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "List the published academy courses with their level, length, pass mark and certificate validity.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "level": {
            "description": "Only courses of this level.",
            "enum": [
              "foundations",
              "practitioner",
              "specialist"
            ],
            "type": "string"
          },
          "limit": {
            "default": 50,
            "description": "Most courses to return.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "list_courses"
    },
    {
      "description": "List countries, regions and cities that have driving schools.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_places"
    },
    {
      "description": "List the product categories with their product counts.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_product_categories"
    },
    {
      "description": "List the affiliate products, with the price each had on the day it was checked. Filter by product category.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "A product category slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_products"
    },
    {
      "description": "List where the driving school data comes from, with the license and refresh of each source.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_sources"
    },
    {
      "description": "Search published driving schools by text, place and category.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Category slug, from /categories. A parent slug also matches its children.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "city": {
            "description": "City slug, from /places.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, any case. A country the directory does not cover, as listed in /places, gives 400.",
            "pattern": "^[A-Za-z]{2}$",
            "type": "string"
          },
          "cursor": {
            "description": "`page.nextCursor` from the previous response. Opaque. Send the same filters and `limit`.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "default": 20,
            "description": "Items per page.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "description": "Search text, with at least one letter or digit. Matches name, categories, attributes, description and place. Typos fall back to close matches.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "region": {
            "description": "Region slug, from /places.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "sort": {
            "description": "`relevance` needs `q` and is the default with it. `name` is the default without `q`. `recent` is newest first.",
            "enum": [
              "relevance",
              "name",
              "recent"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_listings"
    }
  ]
}

What the leaf hashes

{"body":"a79dbf99760220012830778862af944303e23ebc29d0d28b0d5338a76a42faad","id":3361480,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793856944113413,"prev":2084933,"subject":"e031ecf8-6cef-4c3e-b34a-42956a5eacf3","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0x5742ec832656bc81fc186e281ca9f8f927d4a272f716f96c9e1e71b2337a4f45
2. 0x4c7fde2c1c7d2c946a8ba370fb56a5494442db7febba10c33695cd548b0bfcda
3. 0x35de5fc6a11f86920c543ab1bc7f07f9333e84218d7d977264ae9be1c59315bd
4. 0xf43263dcf254d3be810e6adfcfc6081eabc0a5ab6d7e2007d324c3c7146910e8
5. 0xe067b6dc98e86ac2b0725349b168d75eb52724ada4b7ffa7708377764fa52233
6. 0x699d06aa67e8e76071d2b494adde531dbae5a4e8864055268437ec1e4ed47be6
7. 0xc11be2a4d9cb7d07989dca5d6ee86b631d4644a70a5fe7e34b897aeb9b69b954
8. 0x297de85941df8fe5b639e66f9253ff6a2ec937024789306c8163d47c528d6288
9. 0x6f7fd8c6941c88e7779a067d81ba6ef52ea3ecb99cc026e04d84bab5e1a466c6
10. 0xdcf79cee07218b60776ef1afa66ba18b0d1e7f9dc4a235fef589d0e1e56a90b3
11. 0xf5b9c5933c5e7b0ee13696c94e0449d37088d01a41a28b9a6a38897064d8603b
12. 0x3717ba9f1d55ebc6da79ce8d8c7b0b90626abf159aa793b8b9e7e7654f8350ab
13. 0x05ed10366f7022b65ba0d6a848668db25748ece9b39afa5185bd888927bc0d60
14. 0x449cf1e61bccebdf54815ea279ddc57c99a96619eb284a92aff809d999dc68c3
15. 0x20ca3add72ff47f6497449b7ee3adf1c6f2cdbedf8b5a49a56da543bf096a5fe
16. 0x01716548fb56e8e74ac29a1a638626afc662ed7e187bafcf089344de82365b83
17. 0xddde0b0de5219c91c717b03cab5216193dc0f26fb006aa8ba17020a71dbd997a
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94