Evidence row 302932

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Get the current price of one deal by id. found=false means it is gone or expired.",
      "inputSchema": {
        "properties": {
          "id": {
            "description": "Deal id from search_deals, e.g. 'LUX-BCN-vueling'",
            "maxLength": 80,
            "pattern": "^[A-Za-z]{3}-[A-Za-z]{3}-[a-z0-9_]+$",
            "title": "Id",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "title": "get_dealArguments",
        "type": "object"
      },
      "name": "get_deal"
    },
    {
      "description": "List destinations that have current deals, with the cheapest price and departure airports.",
      "inputSchema": {
        "properties": {
          "origin": {
            "default": "any",
            "description": "Departure airport, or 'any' for all 7",
            "enum": [
              "LUX",
              "SCN",
              "HHN",
              "CGN",
              "CRL",
              "BRU",
              "FRA",
              "any"
            ],
            "title": "Origin",
            "type": "string"
          }
        },
        "title": "list_destinationsArguments",
        "type": "object"
      },
      "name": "list_destinations"
    },
    {
      "description": "Search current flight deals from Luxembourg (default) or nearby airports. Returns return-trip prices in EUR with dates, the usual route price, a booking link and when the price was last checked.",
      "inputSchema": {
        "properties": {
          "destination": {
            "anyOf": [
              {
                "maxLength": 60,
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Destination IATA code, city or country, e.g. 'BCN', 'Barcelona' or 'Spain'",
            "title": "Destination"
          },
          "include_expired": {
            "default": false,
            "description": "Include deals whose outbound date has passed",
            "title": "Include Expired",
            "type": "boolean"
          },
          "limit": {
            "default": 10,
            "description": "Max number of deals to return (1-25)",
            "maximum": 25,
            "minimum": 1,
            "title": "Limit",
            "type": "integer"
          },
          "max_price": {
            "anyOf": [
              {
                "exclusiveMinimum": 0,
                "maximum": 10000,
                "type": "number"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Max return price in EUR",
            "title": "Max Price"
          },
          "month": {
            "anyOf": [
              {
                "pattern": "^\\d{4}-(0[1-9]|1[0-2])$",
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Outbound month, YYYY-MM. Matches the cheapest outbound date only.",
            "title": "Month"
          },
          "origin": {
            "default": "LUX",
            "description": "Departure airport IATA code, or 'any' for all 7",
            "enum": [
              "LUX",
              "SCN",
              "HHN",
              "CGN",
              "CRL",
              "BRU",
              "FRA",
              "any"
            ],
            "title": "Origin",
            "type": "string"
          },
          "sort": {
            "default": "price",
            "description": "Sort order",
            "enum": [
              "price",
              "price_incl_transport",
              "discount"
            ],
            "title": "Sort",
            "type": "string"
          }
        },
        "title": "search_dealsArguments",
        "type": "object"
      },
      "name": "search_deals"
    }
  ]
}

What the leaf hashes

{"body":"8a6eb4a342f2dab1151d9244a4caf7caa59234fb033fd5a4adde1b8cdf01b782","id":302932,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055060570621,"prev":null,"subject":"60577a9a-8091-4e4d-8f92-1c3c524ae4ed","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. 0x7a4883230e8d32a8fbd68e62a81d2d266754ce86c01d8db770d7599ce92e896c
2. 0x31b3105648acc671478a049f2c5cf68d51d98388d57680c5dc2774c5b5dc1228
3. 0xb6721cba6035421e13558f34637d751dd5a947b8c6c1531833d4a85addd68d37
4. 0x52b2307388d593a4804d8207dbd8e2111535c08e834ed553943f54b829535723
5. 0xde102c3fff60ea39e9e662cfc8d1ede04488c0a3ec07e2f0b1b026ed1910e06e
6. 0x98db3c3595621d03da81c92aacda924116629bd55955f69ad8b41bbb9eef8312
7. 0x37430db301cd52c81a837965cc765a3d7bb38f4b8b269f6e3480c84745d216ba
8. 0x0aa0f4f9d57c12a01edc437ac8a81ebb48809801d8df8f2a7263fb62ce0343bd
9. 0x4a5f24de43215ab4d4d63b885e82341f9af2f4b6cdcaaa7b5e53c2a252e14c23
10. 0xd7bfe89d1c95d31c83b5cd958ac57e187ca41d9a64c12c75ed199d276c80aa6f
11. 0x1474b20023ac420a3be8200f14f9ac14f1ee93ff05411fa3760c28b2e50fb3dd
12. 0xa6406b1a5540d26e0cbd03bb274a01c10968fadb17913a6043bb9427ddfb71ba
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae