Evidence row 569124

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "How to get full access: the current plan of this connection, row caps, prices (free preview, one-off export, Pro annual pass), the signup and pricing URLs, how to pass an API key, and the wording to use when telling a user how to get every row.",
      "inputSchema": {
        "additionalProperties": false,
        "type": "object"
      },
      "name": "get_access_info"
    },
    {
      "description": "Free area totals and breakdowns for supported datasets, including CQC care-home lists, food hygiene ratings, restaurant inspections, aged care, carriers, building permits and licences. Rating datasets include published rating shares; permits use construction and demolition categories. Other lists show record counts and type breakdowns, with dates where published. Omit area to list the areas available. Read the returned field names and coverage before comparing areas; cite the page URL returned.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "area": {
            "description": "Area name or slug, e.g. \"Leeds\" or \"leeds\". Omit to list areas.",
            "type": "string"
          },
          "dataset": {
            "description": "Dataset id with statistics, e.g. cqc, fsa, fhis-scotland, au-aged-care, us-motor-carriers, us-food-inspections, us-building-permits, us-business-licenses or us-liquor-licenses",
            "type": "string"
          }
        },
        "required": [
          "dataset"
        ],
        "type": "object"
      },
      "name": "get_area_statistics"
    },
    {
      "description": "For England CQC care homes, return exact selection totals, registered providers, recorded beds, missing-value coverage and up to 25 provider summaries. Provider IDs describe registered operators, not ultimate owners. A pending response requires retrying after the supplied delay. Uses the same strict filters as query_dataset; careHome defaults to true.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "dataset": {
            "enum": [
              "cqc"
            ],
            "type": "string"
          },
          "filters": {
            "description": "Filter object keyed by the filter keys from get_dataset_schema (not column names), e.g. {\"localAuthority\":\"Leeds\",\"rating\":\"1\"}. Text filters are case-insensitive unless their schema sets caseSensitive to true; \"contains\" filters match substrings; enum filters must use one of the listed options.",
            "type": "object"
          }
        },
        "required": [
          "dataset"
        ],
        "type": "object"
      },
      "name": "get_dataset_intelligence"
    },
    {
      "description": "Get a dataset's columns and the exact filters it accepts (key, type, allowed options, example). Use the filter keys, not column names, when calling query_dataset.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "dataset": {
            "description": "Dataset id from list_datasets, e.g. fsa, cqc, charity-commission, us-food-inspections, us-building-permits, fhis-scotland",
            "type": "string"
          }
        },
        "required": [
          "dataset"
        ],
        "type": "object"
      },
      "name": "get_dataset_schema"
    },
    {
      "description": "List every dataset DataScoop carries (official public records: UK food hygiene ratings, Scotland FHIS, CQC care providers, the UK charity register, US restaurant inspections, US building permits, and more as added) with country, coverage, row count, licence, refresh date and the page URLs. Call this or search_datasets first.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Optional ISO 3166-1 alpha-2 country code to filter by, e.g. GB or US",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_datasets"
    },
    {
      "description": "Return matching public records, their total count and the attribution to cite. Fields marked personal in our schema are excluded; published business names, addresses or phone numbers may still identify sole traders. Without a Pro key each call returns at most 25 rows; when more match, truncated=true and next_step explains how to buy a full CSV or use Pro. Pro calls return up to 1,000 rows, with offset for retrieving the rest. Ask for format \"summary\" to get counts only.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "dataset": {
            "description": "Dataset id, e.g. fsa",
            "type": "string"
          },
          "filters": {
            "additionalProperties": true,
            "description": "Filter object keyed by the filter keys from get_dataset_schema (not column names), e.g. {\"localAuthority\":\"Leeds\",\"rating\":\"1\"}. Text filters are case-insensitive unless their schema sets caseSensitive to true; \"contains\" filters match substrings; enum filters must use one of the listed options.",
            "type": "object"
          },
          "format": {
            "description": "\"rows\" (default) returns the rows; \"summary\" returns only the total and links",
            "enum": [
              "rows",
              "summary"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Rows to return (default 25, max 1000 per call; free plans are capped at 25)",
            "maximum": 1000,
            "minimum": 0,
            "type": "integer"
          },
          "offset": {
            "description": "Rows to skip when paging through results; the per-request plan cap still applies",
            "minimum": 0,
            "type": "integer"
          },
          "strict_filters": {
            "description": "Reject unknown or invalid nonempty filters instead of ignoring them. Recommended when exact scope matters. Empty values are omitted; true-only boolean filters cannot select false. Default false preserves existing behavior.",
            "type": "boolean"
          }
        },
        "required": [
          "dataset"
        ],
        "type": "object"
      },
      "name": "query_dataset"
    },
    {
      "description": "Find candidate DataScoop datasets from keywords or a short task description, such as \"Find care homes in Surrey\" or \"restaurant inspections Chicago\". Candidates describe declared coverage, not verified matches for the requested location. Call get_dataset_schema, then query_dataset with explicit filters; example filters are illustrative and are not inferred from the request.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Optional ISO country code, e.g. GB or US",
            "type": "string"
          },
          "query": {
            "description": "What the user is looking for, in plain words",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_datasets"
    }
  ]
}

What the leaf hashes

{"body":"2a85732c1292220cf2b16b1000802d558439edc6b4c38af19181c7d01ee92a26","id":569124,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793139232615077,"prev":null,"subject":"238d126f-9864-4337-ad1d-e366835cdd33","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. 0x1b0135a2f6d9974714ffc06f6b77a9177b6501a02070752a623bb2e7f1f2e48c
2. 0xcfbe0cbfa7b5ee13a80d62eeb2d8e6d229a5173e09c5e7e491b6cb5bc186f8a1
3. 0x1b97d3c18ae5ea2e1968c762bacc69dc98d9501b1032338817c8a8d2d5ed2f7b
4. 0xd6e00b3465d95b32371b8395f78ced6b20b99eac6e40fc26b696be65e32a5dad
5. 0x20feb7bc35b3b02f72326f196bf42f271a7d5118665a4fb1438c3444793ee03e
6. 0x0775fff8ca479f52436f235aa97cbdedfb3b18c5faf42996b5fb4b29ab688e5b
7. 0xf915adc4c89ea9b4701f3aec29627a4e734da6df5322fdd9b20b26df189e0b27
8. 0xc5e85d88938d67a19b6f5f3b1f4a98a43dd5428a9b957165df064dad52ab3d7b
9. 0x692d36bb99e75ed44e6d40e83c11f5ecbbb59c40c878cc3fb8230d89fbfd42f6
10. 0x48333ade66cdd062cb79513c538a82ed4321b36333e1439d15dd14096dcdfc99
11. 0x939c306fccf6f9ecd4e13859e2994a9f95dde80f56072b4b7be22ed4cc49b483
12. 0x864874d7fe156494acebcd974fb0ea64b6d7d6ef442b90a07ce8adbc57f7d75b
13. 0xca0b37bb3b043ccf0f24c50fccd9c2f22b7e5290df49886008fc2ff55380fdd1
14. 0x2064e3a2b01d0d12d5079bf720a0d0125e9703c55e92de54ad40c302469ec047
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4