Evidence row 291729

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Return published catalogue facts for one exact listing id, including price, location and markers when published.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Exact listing id returned by match_listings.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_listing"
    },
    {
      "description": "Browse or filter names of blood tests, panels and health checks in the compiled Irish catalogue. This is catalogue navigation, not a clinical recommendation.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "limit": {
            "description": "Page size, default 12.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "offset": {
            "description": "Pagination offset, default 0.",
            "maximum": 10000,
            "minimum": 0,
            "type": "integer"
          },
          "query": {
            "description": "Optional panel name, category or alias filter.",
            "maxLength": 500,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_panels"
    },
    {
      "description": "Find catalogue listings using an explicit blood-test, panel or health-check name and an optional Irish location. Returns sourced comparison facts only; it does not assess symptoms or clinical suitability.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "eircode": {
            "description": "Irish Eircode or routing key supplied by the user.",
            "maxLength": 20,
            "type": "string"
          },
          "includeBroader": {
            "description": "Include broader mixed panels when the user explicitly requests them.",
            "type": "boolean"
          },
          "limit": {
            "description": "Maximum number of listings, default 4.",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          },
          "location": {
            "description": "Irish town or Eircode routing code already supplied by the user.",
            "maxLength": 200,
            "type": "string"
          },
          "query": {
            "description": "Explicit blood test, panel or health-check wording. Use an empty string when the user has not named one; never infer a test from symptoms.",
            "maxLength": 500,
            "type": "string"
          },
          "town": {
            "description": "Irish town or city supplied by the user.",
            "maxLength": 100,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "match_listings"
    },
    {
      "description": "Compare up to ten exact listing ids returned by match_listings using catalogue price, location and published marker facts.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "listingIds": {
            "description": "Exact listing ids returned by match_listings, in display order.",
            "items": {
              "maxLength": 200,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 10,
            "minItems": 1,
            "type": "array"
          },
          "location": {
            "description": "Irish town or Eircode used for the comparison.",
            "maxLength": 200,
            "type": "string"
          },
          "query": {
            "description": "Original catalogue search wording for display context.",
            "maxLength": 500,
            "type": "string"
          }
        },
        "required": [
          "listingIds"
        ],
        "type": "object"
      },
      "name": "render_results"
    }
  ]
}

What the leaf hashes

{"body":"e4118e968e51b42a5b07fadeb0a8bda37913b00f1bb1954a9d93e637509a9383","id":291729,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793048278534236,"prev":null,"subject":"8fa7687d-c194-48c0-b4c6-9c5b3cae8c30","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xf05f9c28334580cd8700eb2bb005682687fc42f7d58fb35e7db06a77d2bfc9b9
2. 0x2f1bc4d750b9bdbc48572b90e2c2d11dc78ec9ab4caf0c54d5ba4b0edc82af9a
3. 0x19cfc47fbfd59d43066a69144cda2da8c810b65742f4d90f24c6cabf0cdf4c00
4. 0x4f752f88dff51ca46bf04022447a6bda6b2ffe6618ac89be320f49e31efcaec8
5. 0xefac55d10397f07d76e0e9f9e37df188ccea624a185066a09a8eb017933d4269
6. 0x6a8c8ba81d0a851f1c083e95786c3875212a86ff87efba6b8a84117d3ae3d18e
7. 0x9f8298b555046085775057087a99e1e072ef344c9fca8d048cf70e593f9f3adc
8. 0x5e6f6554b22ecf4db12db563b4e1c2704c40657ed313117ede4bdfaf714dee49
9. 0xc75ce0cd46f8a59177489cb9a7e54917eec406d88c64c887fbf9be19288f7781
10. 0x3596b9717d8451909e6f610690c73b18907f0580f92978c2a8862668158a8f31
11. 0xe34b4862878cc4926f0e4b84b3f031ef1f0cf0de9bf8fb3c13adbc6abc010ee1
12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae