Evidence row 568198

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Get one published ADHD evaluation provider by its slug.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The listing slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_listing"
    },
    {
      "description": "Get the number of published ADHD evaluation providers, places and categories, and when the data last changed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_stats"
    },
    {
      "description": "List categories with their ADHD evaluation provider counts.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "List countries, regions and cities that have ADHD evaluation providers.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_places"
    },
    {
      "description": "List where the ADHD evaluation provider data comes from, with the license and refresh of each source.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_sources"
    },
    {
      "description": "Search published ADHD evaluation providers by text, place and category.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Category slug, from /categories. A parent slug also matches its children.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "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":"a53ee39571e3fb1eaefac7303aa03a76d5f4a9c4a912000a52280445a9be58e4","id":568198,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138947342584,"prev":null,"subject":"42c38b22-c040-415a-88f7-aad9f0ec7bdc","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x619a553ab5ea78453c21cd9306182f0da7e32b91d69c3de64572effece8e101f
2. 0x4a8bb71d891deafedb7feb66a003c1d16a39754beed2d2ffacc9f47b5d99c0ff
3. 0x233c75632f6361f2fce6dd75f3bac69ab6609b250c43e9ad9831588c2144d385
4. 0x92ce77e2032f4901f092b9cb7dc203b15cbea47fbacf97cefc1bd4b6bf48446d
5. 0xa3b19a4cc96dbd1965647c985b3720fd4c4913fbfb6d3b195ab8156937550055
6. 0x0b37f9766c1bbdf31d2e8c3a45d8f1f59b735fc2a6a3bca6757bc392b54b5d99
7. 0xe2dbab3d3f52167dc7e63555f2fbf91e7b45eb34293a6905ce3ed84e6e12f579
8. 0x6f7c993e76e8d5b6a3a633ba2aae5c6fad3399944772283978edb09e3c0de597
9. 0x9d60b3d108461500c73c98b1e7126789d235f8b69bab2c247c103b3bbe7f5b93
10. 0xb8dca56c4c23574ede757cf5e83ed44a235623a9856f6e3fa8ac143787acedb6
11. 0xa81a051dde23e51110ae9919545b7ebf678423a44796b6dd73cba5f3e8134f16
12. 0x4fbbcb97bbe92a4202db4cfe9ed5ce98ec76cb76473d9a37a3775c708528409e
13. 0x38f17e73d675dd35d0dd4a9f0ebd22a3333bcd28f96e42d5dd126e08211ffc4a
14. 0x4277e02be0b5d91d78bc2247e37d402572474ba896c2e8f45765c8dc4e244d36
15. 0x6f00f0da417f4126951ba8ba9b7962c847e91f5c61364ad9ad47e5f979698a60
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4