Evidence row 519506

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "The columns, which of them are numeric, the row count and the provenance banner of the Clientvo dataset. Call this first to learn the schema.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "dataset_columns"
    },
    {
      "description": "The rows of the Clientvo dataset whose column is any of the given values, in the order given — for \"X vs Y\" questions.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "column": {
            "minLength": 1,
            "type": "string"
          },
          "values": {
            "items": {
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 10,
            "minItems": 2,
            "type": "array"
          }
        },
        "required": [
          "column",
          "values"
        ],
        "type": "object"
      },
      "name": "dataset_compare"
    },
    {
      "description": "The source, the date it was computed, the licence and the citation for the Clientvo dataset. Read this to attribute a figure correctly.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "dataset_provenance"
    },
    {
      "description": "The rows of the Clientvo dataset where a column equals a value exactly (case-insensitive).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "column": {
            "minLength": 1,
            "type": "string"
          },
          "value": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "column",
          "value"
        ],
        "type": "object"
      },
      "name": "dataset_row"
    },
    {
      "description": "Rows of the Clientvo dataset whose cells contain the query (case-insensitive), up to 50.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "limit": {
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "text to look for in any cell",
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "dataset_search"
    },
    {
      "description": "count, min, max, mean, median and sum of a numeric column of the Clientvo dataset (grouping commas and currency are handled; non-numeric rows are excluded and counted).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "column": {
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "column"
        ],
        "type": "object"
      },
      "name": "dataset_stats"
    },
    {
      "description": "The highest (or lowest) rows of the Clientvo dataset by a numeric column — \"which is the most/least X\".",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "ascending": {
            "description": "true for the lowest first; default highest first",
            "type": "boolean"
          },
          "column": {
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "column"
        ],
        "type": "object"
      },
      "name": "dataset_top"
    }
  ]
}

What the leaf hashes

{"body":"45d7588db3632e5a192a3121ef6a21c0da1eb958d4d7fa4a72c55eedfe3d2a2d","id":519506,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793122182113015,"prev":null,"subject":"999582d1-fb0b-476f-8e00-2aa718bae073","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. 0xd3c02c24b56114678ec550b8b6d8436405b9e8f5524ec8c5a6a44c8e0eb05030
2. 0xeb8fe791b4890be191432f24f495d17be676ff6ad0e3877d2d433d84a546482a
3. 0x73844b61e47348719564853f98b33be9e94c007eabddfdfcda8313c335c98bd9
4. 0xcaecd1274f0c7128928e0daf51c4ae9f629ed16f0ec16aa762e4e0477f2d2c55
5. 0xec9d308f96727e11fd8f88ff4b39316a5c34e2e5af54e88d5b1a0c9d39a31d0f
6. 0x4ff33d6afa20e9dc574f60d41ef1d040a1c49529004585d6f8f3267b9493ea12
7. 0x2ffab93fd55f7620c8afc79f04d86cbb800fa5a5404624648c4180a6aeb289a2
8. 0xe64deca67b060bfe4d0ff89f11e97f4ef895912be847f892b1249ebe68cfdda4
9. 0xc95b6cce7527643fe83a97a95c6011126a5d8830dab04668eb6ba935c92a96f2
10. 0x6a1386a689a26367b568f88e377530a2bd553e06af1a26049e7c59700ecf3e60
11. 0xfffb2250987be2ab1e65ada5e7362185183c6bbed9d78650d53d2ffb2c007dd0
12. 0xba42125112c82614fda070baa3201b37bda47b7485d074641cdd174984f8ddaf
13. 0x3b3e4fecead12aaf883ab4f21b6e21efddd0a8d055ced058cb62bcdca8a6c9d6
14. 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4