Evidence row 258749

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Add an item to an existing baby registry / wishlist. Prefer asin for tagged /dp/ links on amazon.se. Requires editToken, marketplace, locale.",
      "inputSchema": {
        "properties": {
          "asin": {
            "type": "string"
          },
          "editToken": {
            "type": "string"
          },
          "emoji": {
            "type": "string"
          },
          "id": {
            "description": "Registry id",
            "type": "string"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          },
          "name": {
            "description": "Alias for title",
            "type": "string"
          },
          "notes": {
            "type": "string"
          },
          "searchKeywords": {
            "type": "string"
          },
          "title": {
            "type": "string"
          },
          "url": {
            "type": "string"
          }
        },
        "required": [
          "id",
          "editToken",
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "add_registry_item"
    },
    {
      "description": "One-shot registry/shopping-list builder: create a registry and fill from ASINs/keywords/queries. Best tool for agents building a full baby list. Returns ownerUrl + shopUrl + editToken. Requires marketplace + locale.",
      "inputSchema": {
        "properties": {
          "ageBand": {
            "type": "string"
          },
          "childName": {
            "type": "string"
          },
          "interests": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "itemAsins": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "itemKeywords": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "itemQueries": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          }
        },
        "required": [
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "create_and_fill_registry"
    },
    {
      "description": "Create an empty baby registry / wishlist. Returns id, editToken, ownerUrl, shopUrl. Start of list-building. Requires marketplace + locale.",
      "inputSchema": {
        "properties": {
          "ageBand": {
            "type": "string"
          },
          "childName": {
            "type": "string"
          },
          "interests": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          }
        },
        "required": [
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "create_registry"
    },
    {
      "description": "Resolve ASIN, Amazon URL, or keywords to a curated buy URL on the selected marketplace (buyUrl + trackingTag; affiliateUrl is a compat alias).",
      "inputSchema": {
        "properties": {
          "ageBand": {
            "type": "string"
          },
          "asin": {
            "type": "string"
          },
          "category": {
            "type": "string"
          },
          "keywords": {
            "type": "string"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          },
          "url": {
            "type": "string"
          }
        },
        "required": [
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "resolve_product"
    },
    {
      "description": "Search the curated baby registry catalog (100+ amazon.se essentials: sleep, feeding, diapering, gear, clothing, safety, bath, play). Returns products with asin + buyUrl. Use to pick items when building a shopping list / registry. Requires marketplace + locale.",
      "inputSchema": {
        "properties": {
          "ageBand": {
            "description": "expecting | 0-3m | 3-6m | 6-12m | 12-24m | toddler",
            "type": "string"
          },
          "interest": {
            "description": "sleep | feeding | diapering | gear | clothing | safety | play | bath",
            "type": "string"
          },
          "limit": {
            "default": 24,
            "type": "integer"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          },
          "offset": {
            "default": 0,
            "type": "integer"
          },
          "q": {
            "description": "Optional text filter (name/blurb/keywords)",
            "type": "string"
          }
        },
        "required": [
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "search_catalog"
    },
    {
      "description": "Search Amazon for baby registry / shopping-list ideas. Rewrites queries with age/category cues. Use when building a recommendation list. Requires marketplace + locale.",
      "inputSchema": {
        "properties": {
          "ageBand": {
            "description": "expecting | 0-3m | 3-6m | 6-12m | 12-24m | toddler",
            "type": "string"
          },
          "interest": {
            "description": "sleep | feeding | diapering | gear | clothing | safety | play | bath",
            "type": "string"
          },
          "limit": {
            "default": 10,
            "type": "integer"
          },
          "locale": {
            "description": "End-user locale, e.g. en, en-US, sv-SE, de-DE",
            "type": "string"
          },
          "marketplace": {
            "description": "Amazon storefront domain or id, e.g. amazon.se, amazon.com, us, se",
            "type": "string"
          },
          "q": {
            "description": "Search query (e.g. bassinet, bottle warmer)",
            "type": "string"
          }
        },
        "required": [
          "q",
          "marketplace",
          "locale"
        ],
        "type": "object"
      },
      "name": "search_suggest"
    }
  ]
}

What the leaf hashes

{"body":"ea813572ed0b315d31b89ab06dcff8f0e88928ee27b67a1a3233e28167e13aaf","id":258749,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793030367940247,"prev":null,"subject":"61c40cfa-e638-4c37-878f-42822cb8b7cb","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. 0x072a1617e61b9b23e469496ce5e14c99f86ada98e41319573a99f4160a50b798
2. 0xa5ba9f29fccd7efb39f107622fc86d29bab435a8ec50c231f29f1a3eea827469
3. 0xb7846cc092039f6568a3ca8713a1b85281a68d2d6eb2fbb7132fe85981c18df5
4. 0xd0eb9d600491b16cf304b26b5035e40835780170915b807e5086a44769f0d335
5. 0x11cbdfc2be2543202992e4808cc5e12c51ecdc45ea698e8db0a33aa11431d59f
6. 0xe06233c177f4235a53b3fb4636490ae8837a941d2d0542fd6ea233159ceb61b6
7. 0x84133bd0b5300881a5e72ce86fd83617fc13e9be1749f267d28350caec7c85e5
8. 0x2368a19e0c0dfac25253628f958854f15afc6c56259475eddfeb2f42560e8bf5
9. 0xe58a7bfbcf7ee0d09cdd1c9633a76e0cb7f5d22098bb0135fe0fd6c148c481b4
10. 0x9a948adeab9018ec5a898e396ee4bd686403fcc757d5eaa65da65f42603cb55c
11. 0xdd6d5f87470c9b64b375ecc2fb3ff4a65fedf3d6a0bd40f365da40a6a41b103d
12. 0x7910a200eb458bec3c3badb3b2ead3e75cec5f3ba263800cea6b9f32efb53f25
13. 0x610fdf3e989af0a6b4a400a3a8aab9156d757f8c96efe4e9d0594dfd04de1cc0
14. 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae