Evidence row 540503

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Everything a business's Nearwick page says: what and where it is, its website, opening hours and description where listed, what its own website states and when that was read, dated checks, and whether the business manages the page. Use the country code and the slug from its page address (/{country}/b/{slug}).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Two-letter ISO country code, such as GH for Ghana or CA for Canada.",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          },
          "slug": {
            "description": "The business's slug, from search_businesses or its page address.",
            "maxLength": 160,
            "type": "string"
          }
        },
        "required": [
          "country",
          "slug"
        ],
        "type": "object"
      },
      "name": "get_business"
    },
    {
      "description": "The kinds of business a country lists, each group with its subcategories and counts, and the towns and regions with the most listings. Use a category slug with search_businesses.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Two-letter ISO country code, such as GH for Ghana or CA for Canada.",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          }
        },
        "required": [
          "country"
        ],
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "Every country with businesses listed on Nearwick, with how many each lists and the address of its directory.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_countries"
    },
    {
      "description": "Search one country's listed businesses by words, category, town or region, and what the page carries. Returns up to 24 a page, each with its Nearwick page address to cite. Word searches default to best match; browsing without words defaults to A to Z. You can also request A to Z or newest details first.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "A category or group slug from list_categories, such as \"pharmacies\".",
            "maxLength": 60,
            "type": "string"
          },
          "city": {
            "description": "A town or city, such as \"Accra\".",
            "maxLength": 80,
            "type": "string"
          },
          "country": {
            "description": "Two-letter ISO country code, such as GH for Ghana or CA for Canada.",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          },
          "has": {
            "description": "Only pages that carry all of these: a website, opening hours, a map pin.",
            "items": {
              "enum": [
                "website",
                "hours",
                "map"
              ],
              "type": "string"
            },
            "type": "array"
          },
          "managed": {
            "description": "Only businesses that manage their own page.",
            "type": "boolean"
          },
          "page": {
            "description": "The page of results, from 1.",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Words in the name, description or address, such as \"pharmacy\" or a business name.",
            "maxLength": 80,
            "type": "string"
          },
          "region": {
            "description": "A region, such as \"Greater Accra\".",
            "maxLength": 80,
            "type": "string"
          },
          "sort": {
            "description": "\"name\" (A to Z) or \"recent\" (newest details first). Without a sort, word searches use best match and browsing uses A to Z.",
            "enum": [
              "name",
              "recent"
            ],
            "type": "string"
          }
        },
        "required": [
          "country"
        ],
        "type": "object"
      },
      "name": "search_businesses"
    },
    {
      "description": "Suggestions for what someone is looking for, in their own words, such as \"a pharmacy in Osu open on Sunday\" or \"a hotel in Kumasi with a website\". Reads the kind of business, the town or neighbourhood, the days and what the page must carry, and returns up to 8 listings in order of fit, each with the reasons it was suggested, and the search that shows every match. When nothing fits everything, the answer says how the request was widened.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Two-letter ISO country code, such as GH for Ghana or CA for Canada.",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          },
          "request": {
            "description": "What the person is looking for, in plain words, such as \"a pharmacy in Osu open on Sunday\".",
            "maxLength": 200,
            "minLength": 2,
            "type": "string"
          }
        },
        "required": [
          "country",
          "request"
        ],
        "type": "object"
      },
      "name": "suggest_businesses"
    }
  ]
}

What the leaf hashes

{"body":"d4fc33f22f98a81bf36560d191880d49515b9dcc83b412d2cf538809b4b8e616","id":540503,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793130019206994,"prev":null,"subject":"f5c7e29c-40f8-4d54-823a-136d7a1b58d3","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. 0xd1c69b4ce644be409cfe6abdb7467660ef47321cec5ab0307fb2a1b6617e2252
2. 0xe2e479b5d16afd58a1511ce37a786fb4b60f85bacaf3979153136c9cbfba20fc
3. 0x89912c7b11e3926e5bef006120929bc625b99b30d4fadf8d75f4692c8371ee13
4. 0x63f02717974e256d10d6762e606ea61edf317ca1079292ce413439cd7d70e87c
5. 0x36d6e38d24852b4fc9f198ecf1d86cba5db83cbecd4cfc7335be52e1f035815e
6. 0xa0b869d08c6e5fbd2f5ef1cccc905837a22aec8e14fd849a157d9edf8d304032
7. 0x1ae8edf24c9d26dff4c8100c0e2eb74eadee12bc1482e8bee5d8e9444c283a19
8. 0xa68e0925ebd284f4116282dbc449a704e1559681a0dfa18eb93df61dd6c966b0
9. 0x649d6704877b8faa02a60b2299d8c5d38a5b30939c2bf195ac13597faa26e4b8
10. 0x6950799c5cde8ab6cd29ff662f5658cbc898f5308dd74e75195675e770eb09bf
11. 0x17dc78b821725e8c90b54bb9b43579db49b460e76d0f7cc8a2a427dc1f9ea96e
12. 0x171aeb7198e4c29bd794c75ee3b02f70c21f3caa4365d2b304c00b891f1bbc94
13. 0xc66f83a1320fe7c1faf22674eeeb7fae22ecd2f0b102d9619a484291f2ce104a
14. 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4