Evidence row 1259452

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "One listed bus in full public detail, by its listing URL or slug, plus how to ask about it. Says plainly when the unit is no longer listed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "listing": {
            "description": "The listing URL or slug from search_buses, e.g. 2019-ford-e450-shuttle-bus-ab12cd34ef56.",
            "type": "string"
          }
        },
        "required": [
          "listing"
        ],
        "type": "object"
      },
      "name": "get_bus"
    },
    {
      "description": "One bus category in full, by slug, including the related categories worth considering instead.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "e.g. school-bus, cutaway-bus, motorcoach",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_bus_category"
    },
    {
      "description": "How sourcing works here, what capacity bands and fuel types mean in practice, and what the service does and does not do. Read this before telling a buyer what to expect.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_buying_context"
    },
    {
      "description": "The commercial bus categories, each with what it actually is, typical passenger capacity, what operators use it for, and whether it needs a CDL endorsement.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_bus_categories"
    },
    {
      "description": "Send a buyer's bus requirements to a CommercialBuses person, who searches participating dealer inventory and replies by email. Use only when the buyer has asked you to, with their real name and email: they will be contacted. Free for the buyer. Mention a specific listing in notes if they want that unit.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "budget_max_usd": {
            "minimum": 0,
            "type": "integer"
          },
          "bus_types": {
            "description": "One or more category slugs from list_bus_categories.",
            "items": {
              "type": "string"
            },
            "minItems": 1,
            "type": "array"
          },
          "buyer_consented": {
            "const": true,
            "description": "Must be true: the buyer asked for this request to be sent.",
            "type": "boolean"
          },
          "buyer_email": {
            "format": "email",
            "type": "string"
          },
          "buyer_name": {
            "minLength": 1,
            "type": "string"
          },
          "buyer_phone": {
            "type": "string"
          },
          "city": {
            "description": "Where the buyer needs the bus.",
            "type": "string"
          },
          "condition": {
            "enum": [
              "new",
              "used",
              "either"
            ],
            "type": "string"
          },
          "min_seats": {
            "minimum": 1,
            "type": "integer"
          },
          "notes": {
            "description": "Anything else, including a listing URL they liked.",
            "type": "string"
          },
          "organization": {
            "description": "Church, school, company or agency, if any.",
            "type": "string"
          },
          "state": {
            "description": "Two-letter US state.",
            "type": "string"
          },
          "timeline": {
            "description": "When they need it, in their words.",
            "type": "string"
          },
          "wheelchair_lift": {
            "type": "boolean"
          }
        },
        "required": [
          "buyer_name",
          "buyer_email",
          "bus_types",
          "buyer_consented"
        ],
        "type": "object"
      },
      "name": "request_bus"
    },
    {
      "description": "Search the commercial buses currently listed for sale by participating dealers. Filter by bus type, seats, wheelchair lift, condition and state. Returns public listing summaries with a link to each listing page. Dealer names and exact prices are not public; to reach the dealer, use request_bus.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "bus_type": {
            "description": "A category slug from list_bus_categories, e.g. cutaway-bus, school-bus, motorcoach.",
            "type": "string"
          },
          "condition": {
            "enum": [
              "new",
              "used"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Default 10.",
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          },
          "min_seats": {
            "description": "Smallest passenger count that works.",
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Free text matched against the title, e.g. 'Ford E-450'.",
            "type": "string"
          },
          "state": {
            "description": "Two-letter US state where the bus is, e.g. TX.",
            "type": "string"
          },
          "wheelchair_lift": {
            "description": "true to show only units with a lift or ramp.",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "search_buses"
    }
  ]
}

What the leaf hashes

{"body":"dbe78f9524bb009a81652a290dae99e251bb8bdbfdc9ca48d1c741317b68514b","id":1259452,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793384803651239,"prev":519601,"subject":"aef7d77a-3ce7-46c7-8285-285abc96dec8","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0xf4d25e1e0e7bc63133bd77f16b1b508ccca72e9c5660cdec1612bfe7ed25639a
2. 0xbc1062ebd5abd730d30ffdf7d9d50e15787bcf9b7f1c93a775ece0578190c01e
3. 0xbd612b26c0502718ea085eb09d85ed929c9ac3de6d38932ae1b7a7041c9eb891
4. 0x716c59b3cb28419befda217eed7a376d56e6317759bc9d4093afa0c16c58bb7e
5. 0xe2c3fcee1a9d1b2170567b8dfa22ee1fe52d17d0fc80942ea8040ef332bdc620
6. 0x0bdd4a9aabc7a425fa380f78b756e60aaacc8138be7aeaa6635c36c4a9ae2bb2
7. 0x73b827eface95fef6eb676654a51f8e9caa715a05e29b99037d334c702e9b56c
8. 0x9cc45a25fab7bb3d18f6219436bc17ce429dde3d19b4590a8002fe7580fe7d36
9. 0x2bef211157de1d7433e3b50905507da48476b6d48caf4ff862085f7ca7b67994
10. 0xc8e60f41a8c58307b80f499622031591aad8794550bb0c5dbb9211e7eced07e1
11. 0xd1e5b6fcd17fbea4cc16bbfff2bd9c4dfb6ce78516ce11db2d3d9aee743c1c07
12. 0x447e7af65941346e9a2b7b7d61b6341a66e08014674718ae46816945a6649c32
13. 0x8c91461ae76482ef8557e549482aa61637cb6701788939394c6c217eb7a327ed
14. 0x11898e2157230be24bdb74fb634d1db6b9f70382aeb9c42eaff57b949f72aa88
15. 0x70547116135ca2b169483009739d1d461bcb7d178c352479612fae712aca3f88
16. 0x71e74c274b23c9047354edb6dcd2c654415e3986b8bd875dae992996ea12e22b
17. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861