Evidence row 3361477

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]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_course"
    },
    {
      "description": "Get one published dating coach by its slug.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The listing slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "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 dating coaches, places and categories, and when the data last changed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_stats"
    },
    {
      "description": "List categories with their dating coach 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 dating coaches.",
      "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 dating coach data comes from, with the license and refresh of each source.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_sources"
    },
    {
      "description": "Search published dating coaches 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":"65f7aadc66bfa1e277876726f3b292aea57cab8d3ccaa4d4a2ee80d971dbad9a","id":3361477,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793856943999275,"prev":2084935,"subject":"7b6ccf70-4693-46de-a385-16008fd5285b","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. 0x527ff5e44f704a12957882b75a300eb8c738fdb091fedf06609d93278451a8e1
2. 0x4c16e2932e2f2409985814443cd863d6fba9cb619557a57529ae29b53089e377
3. 0xc445f2949cb3a071a075fb3e933014025e173059abef8f321a65fac776b08b00
4. 0x583060df238f070a06daa4cafeeacc36145c1693b75eac979b7e27b8898dbe77
5. 0x30a24b0d9fffad360f1ac0f0df53209e0e7a33dbb7102d9ec68824e78accc4e1
6. 0xaad1df6ebfc012ddd9d33af07fecea66f4e7c359c90c8006fdddaa266e41afc2
7. 0x0fea9ee306bebfd569121342c00760bb12e1f715f81ac9f81d54880bf5b96ca8
8. 0x12e4c502ea945a727c04a84f30c93749c958fe1abf4aa7922d28a3fdb07d526f
9. 0x699ae0d0b4b78b3a95d629bbddeafc2b3120b9153a10716c3b45b61089b4493b
10. 0x1ad3d5eea19d7cd84aa29f06acc7e40aa0cd7c69dce139332a9971a457a096a0
11. 0x9ac725fd4bb5fdb39c80fe3900b253d68e8c2082141c94b596a53299bc4f2987
12. 0x1583fd67b8e3b1d8876304f232270c77647f41936a37024d54488f675538a2f3
13. 0xff04f88f01db14dd3ab75ae4ad845f5913e27709edbc0eb6237c5c128a69b491
14. 0xc7c9a02b10652443317f29964cb3f80c8edb43f84b67644463046121ae250d1c
15. 0x20ca3add72ff47f6497449b7ee3adf1c6f2cdbedf8b5a49a56da543bf096a5fe
16. 0x01716548fb56e8e74ac29a1a638626afc662ed7e187bafcf089344de82365b83
17. 0xddde0b0de5219c91c717b03cab5216193dc0f26fb006aa8ba17020a71dbd997a
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94