Evidence row 991733

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "[Internal] Get buyer contact info and past inquiry records. Restricted to signed partners only, requires an authorization token. Do NOT call without explicit authorization.",
      "inputSchema": {
        "properties": {
          "keyword": {
            "description": "buyer name or phone",
            "type": "string"
          }
        },
        "required": [
          "keyword"
        ],
        "type": "object"
      },
      "name": "get_buyer_contacts"
    },
    {
      "description": "Get a one-call overview of Ucun Select inventory: total in-stock products, per-category counts, export-ready / custom-order / sample-available counts, and last updated time. Public read-only, no auth required. Use this first to understand the platform scale, then use search_stocks or list_categories to drill in.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_platform_overview"
    },
    {
      "description": "Get full details of one product by id: specs, price, stock, MOQ, merchant name. The collected_at field shows when price/stock were last recorded - always check data_age_days before quoting prices (over 30 days = stale, verify with merchant). Public read-only, no auth required. If the id does not exist, returns an error message (not an empty result). Use this when you already have a product id from search_stocks; use search_stocks instead to find products by keyword.",
      "inputSchema": {
        "properties": {
          "id": {
            "description": "Product id, copy it from the id field of a search_stocks result",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_stock"
    },
    {
      "description": "List all product categories that currently have in-stock items, with per-category quantity counts reflecting the live inventory structure. Public read-only, no auth required. Use this to get an overview or to pick a valid category value for search_stocks; use search_stocks to drill into products of one category.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "List the most recently updated in-stock products, newest first. Public read-only, no auth required. Returns compact product cards (same fields as search_stocks). Use this when a buyer asks for new arrivals or latest designs; use search_stocks for keyword-based discovery.",
      "inputSchema": {
        "properties": {
          "limit": {
            "description": "返回数量，默认5，最大20",
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "list_new_arrivals"
    },
    {
      "description": "Search in-stock products on Ucun Select (home-textile wholesale platform, Nantong China). Supports Chinese or English keyword, category, material, and max-price filters; returns up to 50 matches sorted by relevance, default limit 10. Public read-only, no auth required. Returns an empty array (not an error) when nothing matches. Use this to discover products; then call get_stock with a returned id for full details, or list_categories for an inventory overview.",
      "inputSchema": {
        "properties": {
          "category": {
            "description": "品类：四件套/被子/被套/床单/枕套/面料/床盖等",
            "type": "string"
          },
          "keyword": {
            "description": "搜索词，如：四件套/被子/面料/棉/法兰绒/bedding/fabric",
            "type": "string"
          },
          "limit": {
            "description": "返回数量，默认10，最大50",
            "type": "number"
          },
          "material": {
            "description": "材质：全棉/聚酯纤维/法兰绒/磨毛等",
            "type": "string"
          },
          "price_max": {
            "description": "最高批发价(元)",
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "search_stocks"
    }
  ]
}

What the leaf hashes

{"body":"be9884a62054aecea9f4281bbaf4156e92d3fa669f1acec189bf28d66bc24d08","id":991733,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793245637243869,"prev":293581,"subject":"d4e16b8e-6c01-4478-b21b-083678290209","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0x2ba7fadf93f6b6c707cc669eab2c6eb8372af03796c6f71140052a470dc5f344
2. 0xff0a8a4fc8622323398b2c26e30275cf4d35b28383d1299cb07debc13dc81099
3. 0x9912533bd986f12f594b93126a1f6e03c841397e7b1e142f409d751c1d510c4c
4. 0x903f5cda90443fcb8daa5b92d82374a25487c45df33dae03d394d3ccaa8def37
5. 0x5f421169612b9e2dbf2f058d5ce7eb71592d95e3062cc63f609a6905a43d713a
6. 0x68418db3f8145bb401cb85ba737ce088a619cccca93928fc3f3b1733b0355254
7. 0xb11c3d14e2af43495b7fbaa64961f04e0445d327d1784e7990883fadf7ef5821
8. 0xa6a17202a5406746a7405c413b1e8b162fb7d7d18003cfbe1e20f13a7d45950b
9. 0xd13303b3e596a70d7209683b457e8aaf3480d7855c1818692848d226ace22146
10. 0xa1532a0a6d3d4ea5f012d8926cb2fd0bda481c7719b039748ad64c99dcbba21e
11. 0x7368830e11ffde50ca74889a46612d8de57bce2379d7087b66494837adaf084f
12. 0xb5dc3c0b7ca2a7b192a78bd752224941a82753443b87153ddf2bad4d207a02ff
13. 0x53104aada45a8c2f9002ac93098831a2cf0cef1895679463ed8dabcf75a7fa24
14. 0xcaae1928370ce22d2a564247e7948dcda78bb8c3ef9a7d8bdfa6e00f84c1e28c
15. 0x00268e62f7d5ca6313e0e60afdc2bd4f52c6dbdb3b4b4d27e01e634b4bcb1d2c
16. 0x1c3764b490d23b94e5ac838c89f8d3850dedb0819196f367da2479c7a88bf2c0
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1