Evidence row 570102

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Read one species: every common name, scientific name, habitats, country observation counts, the full photo credit and the Wikipedia summary.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Species slug from search_animals, for example `red-fox`.",
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "lang": {
            "default": "en",
            "description": "Display language.",
            "enum": [
              "en",
              "de",
              "es",
              "fr",
              "it",
              "nl",
              "pt",
              "pl"
            ],
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_animal"
    },
    {
      "description": "List the seven species groups with the label in the requested language and the species count. Call first to learn the valid `category` values.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "lang": {
            "default": "en",
            "description": "Display language.",
            "enum": [
              "en",
              "de",
              "es",
              "fr",
              "it",
              "nl",
              "pt",
              "pl"
            ],
            "type": "string"
          }
        },
        "required": [],
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "List every ISO country code that carries observations with its species count.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "list_countries"
    },
    {
      "description": "Search species by free text in any of eight languages or by scientific name, with optional category, habitat and ISO country filters. Ranked by iNaturalist observations. One page of card-sized records.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "enum": [
              "mammals",
              "birds",
              "reptiles",
              "amphibians",
              "fish",
              "insects",
              "other"
            ],
            "type": "string"
          },
          "country": {
            "description": "ISO 3166-1 alpha-2.",
            "pattern": "^[A-Z]{2}$",
            "type": "string"
          },
          "habitat": {
            "enum": [
              "forest",
              "grassland",
              "freshwater",
              "sea",
              "mountains",
              "urban",
              "farm",
              "zoo",
              "savanna",
              "jungle",
              "arctic",
              "desert"
            ],
            "type": "string"
          },
          "lang": {
            "default": "en",
            "description": "Display language.",
            "enum": [
              "en",
              "de",
              "es",
              "fr",
              "it",
              "nl",
              "pt",
              "pl"
            ],
            "type": "string"
          },
          "page": {
            "default": 1,
            "maximum": 1000,
            "minimum": 1,
            "type": "integer"
          },
          "per": {
            "default": 20,
            "maximum": 120,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "description": "Free text, for example `red fox` or `Vulpes`.",
            "maxLength": 100,
            "type": "string"
          }
        },
        "required": [],
        "type": "object"
      },
      "name": "search_animals"
    }
  ]
}

What the leaf hashes

{"body":"3ff5d5154a59a73570aa14ecbc4c88a7600578047ab61fefe055f9cb968b9de4","id":570102,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793139633714159,"prev":null,"subject":"b5000271-3e17-4613-9cb0-4c70ed34ce1c","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. 0xdbe282137f6689a5676d84d399abf6454c427069d0992221ea1a744d6b084b47
2. 0x3edc83e5a69f2bc9a4e1c4409bf64a3f51c76a94162cc344eb3bcac58f690d4b
3. 0x03598e2e2029e8ec86ce2c117b1be1217f81554f0916a680e8a6bf3e3e9d8f4f
4. 0x8dcf94bfbfa14da2a8753a9f781c11093a0862b88a9f8cb1c661d0e277a70050
5. 0x357bbfb6746239d42b9b24307a3887a902fd5168426bda0a269ffdc3cbd54174
6. 0xe11d4236ae9587d05f2e835df2f01f19e33043d95f205cfee54c8605b3506d63
7. 0x7ff31eefbf7cb2d48b59fed339a636ade03c00d77a81f64384e4efecae5484f9
8. 0xcfd373d2ff538db68076e858520f641ce3421eab73a9480506a60e70216df89e
9. 0x6edcfd5c1d8e3f4fe6a2ff6203f08b965f389a2fd7177d5a3a30ec8ce2f715d4
10. 0xf96fb683af5501663c6d702d4055b43f362e81f25b6fbc1d6da8b6f21436eec5
11. 0x334fdc873c6948f434b9c525ce181116a68666c00b1dba45661a30143248eb2a
12. 0xb1729a74b02e0277214cd7ddc7a3826d50fd12538906bbf13236f7c6cca39323
13. 0x9f8e192630bb5fc72241bfdb0460be2fccc141b3afd0197fe2e478dc28ce82a9
14. 0xd59f3e577867f5105dd7f75598f16da8286185e426dfcdafb84e733fde2b2492
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4