Evidence row 309189

What was observed

{
  "count": 13,
  "tools": [
    {
      "description": "Compare a product's price across merchants. Returns offers plus lowest/highest, all linking to the LMK product page.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "idOrSlug": {
            "type": "string"
          }
        },
        "required": [
          "idOrSlug"
        ],
        "type": "object"
      },
      "name": "compare_prices"
    },
    {
      "description": "Fetch full detail for one product by id (from a prior search result). Returns citable text with price, savings, 90-day price history, and buying options.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "id": {
            "description": "Product id or slug from a search result",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "fetch"
    },
    {
      "description": "Get a single editorial collection and its curated products by slug.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 60,
            "minimum": 1,
            "type": "integer"
          },
          "slug": {
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_collection"
    },
    {
      "description": "Today's best deals, ranked by LMK's deal-quality scoring (discount depth, price sweet spot, merchant quality). Optionally filter by category slug or minimum discount.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "type": "string"
          },
          "limit": {
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "minDiscountPercent": {
            "maximum": 99,
            "minimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_deals"
    },
    {
      "description": "Gift recommendations for a recipient/occasion within a budget. Blends curated search with LMK demand signals.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 36,
            "minimum": 1,
            "type": "integer"
          },
          "maxPrice": {
            "minimum": 0,
            "type": "number"
          },
          "minPrice": {
            "minimum": 0,
            "type": "number"
          },
          "query": {
            "description": "Recipient/occasion, e.g. \"gifts for new dad\"",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_gift_ideas"
    },
    {
      "description": "Most-wishlisted products (180-day demand signal across all LMK lists, aggregate counts only). Unique LMK demand data.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "maxPrice": {
            "minimum": 0,
            "type": "number"
          },
          "minPrice": {
            "minimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "get_popular_products"
    },
    {
      "description": "Get price history and stats for a product over a trailing window (default 90 days). LMK-proprietary price intelligence.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "daysBack": {
            "maximum": 365,
            "minimum": 7,
            "type": "integer"
          },
          "idOrSlug": {
            "type": "string"
          }
        },
        "required": [
          "idOrSlug"
        ],
        "type": "object"
      },
      "name": "get_price_history"
    },
    {
      "description": "Get a single product with full detail: enriched card, 90-day price stats (lowest/highest/average + is-at-lowest), and cross-merchant buying options.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "idOrSlug": {
            "description": "Product slug, id, or external id",
            "type": "string"
          }
        },
        "required": [
          "idOrSlug"
        ],
        "type": "object"
      },
      "name": "get_product"
    },
    {
      "description": "Products gaining momentum — most-added to wishlists in the last 30 days (aggregate counts only).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "get_trending_products"
    },
    {
      "description": "List LMK's published editorial collections (occasions, holidays, beauty, style, sports).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "list_collections"
    },
    {
      "description": "Batch-resolve products by LMK slug, id, or external/merchant id.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "ids": {
            "items": {
              "type": "string"
            },
            "maxItems": 50,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "ids"
        ],
        "type": "object"
      },
      "name": "lookup_catalog"
    },
    {
      "description": "Search LMK products; returns citable results, each with a canonical LMK product-page URL. Use for shopping/discovery. For price/brand/on-sale filters, use search_catalog.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Natural-language product search query",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search"
    },
    {
      "description": "Search LMK's curated cross-merchant catalog. Returns products with LMK product-page links. Use for \"find me X\" shopping queries.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "brand": {
            "type": "string"
          },
          "limit": {
            "maximum": 36,
            "minimum": 1,
            "type": "integer"
          },
          "maxPrice": {
            "minimum": 0,
            "type": "number"
          },
          "minPrice": {
            "minimum": 0,
            "type": "number"
          },
          "onSale": {
            "type": "boolean"
          },
          "query": {
            "description": "Natural-language product search query",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_catalog"
    }
  ]
}

What the leaf hashes

{"body":"5171a2a9c288cf2a712dd001e6fb338bb4d5f307b7c944de09a63d77ceb0a57f","id":309189,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058740845696,"prev":null,"subject":"658da265-cbcb-468e-bee8-ffea7644fa82","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. 0xdd48686082ba24e0b3ce42f0c4047af5d9d0955a5c760936df847610f9a0736e
2. 0xec35266e7639c057afe8eeffb44c787f995eb38986c1e77b95373eee0e3f484f
3. 0x6d9ed9b4a75d0e360839d885963a3fc2731f26c3b310803e35f81366050ae859
4. 0x8d4c582656ff9e5f7640422a29c94e87edcb8e7a6f159945d28781702dfe1807
5. 0x4e3e0d19bdb695880c4e42e2af41d5c9b6553091afd09b2d7554d9be92a6e8e5
6. 0xe06f9f577bfd3fa8d48e246d87c693b42b2af8b547513d959efd03f0a63c470a
7. 0x3d0f29d194c9b331367c190a3ab18979934996b6f0f322d544c16b04fb8b3592
8. 0x30c8a8467f845f60a5b9e048203d191af33f4f5cad4f57268706e952c4bf5e59
9. 0x8d50b59c7e47c14e71f98294ffe9a08e27612300e93c525acbe08e28b3a77118
10. 0xa6e263f21de84b30c691e048acb0310bd7d18a8690547632e858e23c83a7937f
11. 0xc304d8ab49bd718a38dddb85fcb5c694094ddf3a5df4ec3ea86014a4eacd847c
12. 0xd5d3f9a510ef9bc1156a86fc24b9d0c3a67b96d7c1dad1563f35f879e0ac9b4b
13. 0xa4edde833302b48399053e2519aea1aed1074cd102bf4b553643df1866cce4ec
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae