Evidence row 1233520

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Side-by-side comparison of 2 to 4 listings (ids or slugs from search_vehicles): price, year, mileage, fuel, verification and inspection grade. Listings that cannot be found are reported, not hidden.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "vehicle_ids": {
            "items": {
              "maxLength": 120,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 4,
            "minItems": 2,
            "type": "array"
          }
        },
        "required": [
          "vehicle_ids"
        ],
        "type": "object"
      },
      "name": "compare_vehicles"
    },
    {
      "description": "Public status of one live or recent JOY auction: current bid in BDT, bid count, end time and anti-snipe extensions. Observation only: bidding needs a verified dealer account and a human. The seller's reserve and bidder identities are never shown. Returns an error while live auctions are not open.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "auction_id": {
            "maxLength": 64,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "auction_id"
        ],
        "type": "object"
      },
      "name": "get_auction_status"
    },
    {
      "description": "How to buy from JOY Automart: currency (BDT), payment methods (card, bKash/Nagad/Rocket, cash on delivery), Dhaka and nationwide delivery zones and fees, human contact, and how an authenticated agent can place orders.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_buying_guide"
    },
    {
      "description": "Full public detail for one catalogue part: BDT price, stock, minimum order, verified offers and bulk price breaks.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "part_id": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "part_id"
        ],
        "type": "object"
      },
      "name": "get_part"
    },
    {
      "description": "Full public detail for one JOY Auto Exchange listing (by listing id or slug): BDT price, specs, photos and, when the car passed JOY's human QC, a summary of the inspection. Only stated listing facts are returned; seller contact details and reserves are never exposed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "vehicle_id": {
            "description": "listing_id or slug from search_vehicles.",
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "vehicle_id"
        ],
        "type": "object"
      },
      "name": "get_vehicle"
    },
    {
      "description": "Compose the links a human buyer uses to complete a purchase: the product page and a pre-filled WhatsApp message with canonical part details and fitment limitations. JOY confirms pricing and purchase eligibility. Creates nothing and charges nothing.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "note": {
            "maxLength": 300,
            "type": "string"
          },
          "part_id": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          },
          "quantity": {
            "default": 1,
            "maximum": 10000,
            "minimum": 1,
            "type": "integer"
          },
          "vehicle": {
            "description": "Make, model, year or VIN, to speed up fitment checks.",
            "maxLength": 120,
            "type": "string"
          }
        },
        "required": [
          "part_id"
        ],
        "type": "object"
      },
      "name": "prepare_buyer_handoff"
    },
    {
      "description": "Search JOY Automart's automotive parts catalogue in Bangladesh. Accepts English, Bangla (e.g. 'টয়োটা এক্সিও ব্রেক প্যাড') or Banglish. Returns retail prices in BDT, availability and a product URL. Catalogue-only RFQ templates are omitted unless include_rfq_catalogue is true. Results are fitment candidates, not guarantees.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "maxLength": 100,
            "type": "string"
          },
          "chassis": {
            "description": "Chassis code, e.g. NZE141 or G05.",
            "maxLength": 40,
            "type": "string"
          },
          "in_stock_only": {
            "default": false,
            "type": "boolean"
          },
          "include_rfq_catalogue": {
            "default": false,
            "description": "Include catalogue-only templates available through a parts request (RFQ).",
            "type": "boolean"
          },
          "make": {
            "description": "Vehicle make, e.g. Toyota.",
            "maxLength": 80,
            "type": "string"
          },
          "max_price_bdt": {
            "minimum": 0,
            "type": "number"
          },
          "page": {
            "default": 1,
            "minimum": 1,
            "type": "integer"
          },
          "page_size": {
            "default": 10,
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Part name, OEM number or vehicle, in English or Bangla.",
            "maxLength": 120,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_parts"
    },
    {
      "description": "Search JOY Auto Exchange vehicle listings in Bangladesh by make, model, year, fuel and BDT price. Only stated listing facts are returned.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "fuel_type": {
            "maxLength": 40,
            "type": "string"
          },
          "include_unpriced": {
            "default": false,
            "description": "Include vehicles with a pending or undisclosed asking price (POA).",
            "type": "boolean"
          },
          "make": {
            "maxLength": 60,
            "type": "string"
          },
          "max_price_bdt": {
            "minimum": 0,
            "type": "number"
          },
          "max_year": {
            "type": "integer"
          },
          "min_price_bdt": {
            "minimum": 0,
            "type": "number"
          },
          "min_year": {
            "type": "integer"
          },
          "page": {
            "default": 1,
            "minimum": 1,
            "type": "integer"
          },
          "page_size": {
            "default": 10,
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "maxLength": 120,
            "type": "string"
          },
          "sort": {
            "default": "latest",
            "enum": [
              "latest",
              "price_asc",
              "price_desc",
              "year_desc"
            ],
            "type": "string"
          },
          "verified_only": {
            "default": false,
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "search_vehicles"
    }
  ]
}

What the leaf hashes

{"body":"f4b25b019790f72a02a349218e48dc6a6fad84cc5bf7831dcad198343cc0dbef","id":1233520,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793347438723687,"prev":null,"subject":"689e0ddc-cb90-4f05-8f4c-14bbe542e94a","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. 0x25f7007ec4a9449d73e3732fd8bbaa7448a91dc0b777b37e551455d989b208f9
2. 0xe443c96b657be3593455575eb89fb3fc880d0a318d5c3fb365252385e1f7d1cc
3. 0xafdb3a74f21359ef6577b83e78c03f2858cd2387d6a8f823afb961ca22b97084
4. 0x457cc1f367798c9ca940f8b11c14eddecae6547495b044c255d8c8d67bc2b3ce
5. 0xb89a3d56e002c64e9beac1bc0f3bc48c5b60cbcee7667904fbf47303c2efda50
6. 0xed7c00ecf163e5bfb34515d0d22c3df2f2945c12f72289ba766d1dc2b8f99493
7. 0xffa26f5f76acb29bccde7fad0e6eb922b4f59ed509dc8b44b3f7b750e554ae3a
8. 0x5c04c835931e4bba5bd58f2b06c4154e862c65b2f12d73b1e0d2541915c089ab
9. 0xe1311843dee950493c02c1b4ea9f7b9fa79c16349c60ee1e8735c1b6b9cf1107
10. 0xfbbe613acc5c3a668100a975157aeadbb51d5d7f0a2c3da12bc8518c477d771a
11. 0x612e4d3a579da59d45e5e43c5dbe70a62740cc9281b3eff2a433271bc2aef336
12. 0x714329e181af1b79f7cec92d54e07b15cb43f061badc372809fb371cd81de07c
13. 0x6d0a0967c405a2d625b45c29f2792bc0d028b2f64827f93caac22b450a6e0970
14. 0x9f9779dc68f693114863e0dec3d1a44dc50e81c34bd4122e25a6a644a5c619bc
15. 0x6222037db785cc797fc8809e52e551d945c928d389b7ac947c037fb9af818562
16. 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861