Evidence row 293581

What was observed

{
  "count": 5,
  "tools": [
    {
      "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":"bfc671223358277fb5d19cd281cbbd7a24738933cb081ad810b511906e3dddfb","id":293581,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793049478997697,"prev":null,"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 2026-10-26 (296695 rows).

1. 0x82114c2527231c81c4f51631ecdec3da2407b3049508b8ea8da223506e622fde
2. 0xc45a0cfca67ef80ce7f16dadb8c23a81227ac29b4e0553cff626203bcef03b6c
3. 0x1b67a402a4175503a9a75d12dbf1214aa642d4669f27ec07c3ab2499f5a02a8a
4. 0xe8185abcdc1d882c58189656b1b6c477177e55ca9406f91a9609fdeefbec7c0a
5. 0x8168313882a569389ef6ce785362108cec9a67584ebd0b22dbae1dcb29478ed6
6. 0xcbe65f0b434e6a15d0ac4b5d056fc8985fc036602b9ee288f6107197e23a83c7
7. 0xeb72450a49a0e6f515e125ef06eaaf449aa13010999d46c87c340f50bf24ff82
8. 0xb602829ec998007ba61dbcf07dc9ec260483d9f6f5e2db5914ddb84a45fe8244
9. 0x70a96c8cf361474ac111c0c64a614d31ddbca6ad53d9ce5acdf877885e1cf0c2
10. 0x7bf314ce864607e38419173b8ca20496acb0a600d828b634ce110759da75fc95
11. 0xc99774cfa2126cb7b4c49d6b3fd2510795689e2dec7886bdb1a009218327ef2e
12. 0x08155d70132f82e370214fc5b72194dfa6f5e57670b7bcf74776e8418302897e
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae