Evidence row 516792

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Show the account's plan, monthly allowance, lookups used and when usage resets. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_usage"
    },
    {
      "description": "Find the product for one barcode: UPC-A, UPC-E, EAN-13, EAN-8, GTIN-14, ISBN-10 or ISBN-13. Returns the title and, where known, brand, category, description, image, price, identifiers and book details. Uses one lookup from the monthly allowance, even when the code is not found.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "barcode": {
            "description": "The barcode, for example 049000050103. Spaces and dashes are ignored.",
            "maxLength": 32,
            "type": "string"
          }
        },
        "required": [
          "barcode"
        ],
        "type": "object"
      },
      "name": "lookup_barcode"
    },
    {
      "description": "Find the products for up to 100 barcodes in one call. Duplicates are ignored. Uses one lookup per distinct code; if the batch would exceed the remaining allowance, nothing is looked up or charged.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "barcodes": {
            "description": "Barcodes to look up.",
            "items": {
              "maxLength": 32,
              "type": "string"
            },
            "maxItems": 100,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "barcodes"
        ],
        "type": "object"
      },
      "name": "lookup_barcodes"
    },
    {
      "description": "Search products by title, brand or category when you have a name rather than a barcode. Returns barcode, title, brand, category and image for the best matches. Words shorter than 3 letters are ignored. Uses one lookup per call.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "page": {
            "default": 1,
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "per_page": {
            "default": 10,
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Search text, for example \"nutella 400g\".",
            "maxLength": 120,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_products"
    }
  ]
}

What the leaf hashes

{"body":"2c90f1002d9e1bab536afba0c48d18a00f57e15376c99be36120656ec3fc7d1e","id":516792,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793120796660059,"prev":null,"subject":"1223ca1c-76bd-46b5-82fb-905b71276e73","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xe380e8b87699ccf41a899d4af9e7d1856979776d3b00e74574e2262e0b1b9695
2. 0xe4359e6cfe10fbd09d256911faab905b43e2ca7636fd6c0bdbd0abbfbbe29a91
3. 0x44247e72a05fba3c0396d68c152800858fce2179a9b5976f5b41bf257a878c49
4. 0xb12c653f5de8ed2edd3ac5c6196e4b6060be375beda026bda042067dd956a431
5. 0x19db4225204ec728cdc56defba1eecfa1ae4709367e9f806142073c48a8e5f45
6. 0xf64361fe54a5fe9631ead5d3b62152c525daa1949fbdf8dcc1f208f6716ec233
7. 0xfa18c3228f27fe150c01ffb941c2c0895a1026e13e0b9d405bcdfa80e219e6c0
8. 0x6d19a9ddf0f02c3abf43cf7581c511efc3a97dea4391af6fbed35d6dfe370393
9. 0x49c40695f84909730d9feb5f9c2cd7f77245a4d1170012f340e3d5873e18714e
10. 0xc2ea5f7f3b161db666605a0ba7963b487b9547a05b28f8b23fc1a9f437bfcd45
11. 0xb44c2942ddb3464f2b2c770afdcadc509526756e35fc6b54cbe05f81f7639529
12. 0x46ff3840378aba3ab5311ff9a58e7269ceff45cbef540c18a2bad9af3d6127bb
13. 0xd98ea318b514153f74841c90aff18a807e61314ec99610bf3bdbb7219da01cbd
14. 0xf72dee7a0c7534cb19ede4959b957b00c0a8285c36ad49dd2ce1c1092bf60d93
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4