Evidence row 1233738

What was observed

{
  "count": 10,
  "tools": [
    {
      "description": "PRO. Invoice/contract due date: add N working days or N calendar days (rolled to next working day) to a date. Includes Late Payment Act 30-day default.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "days": {
            "type": "number"
          },
          "from": {
            "type": "string"
          },
          "region": {
            "description": "england (default), wales, scotland, northern-ireland",
            "type": "string"
          },
          "working": {
            "type": "boolean"
          }
        },
        "required": [
          "days"
        ],
        "type": "object"
      },
      "name": "due_date"
    },
    {
      "description": "PRO ($0.01). Wikipedia search for background facts: up to 10 matching articles with snippets, and summaries for the top 3.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "max": {
            "type": "number"
          },
          "query": {
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "facts_search"
    },
    {
      "description": "PRO. For a month: working days count, bank holidays, payday suggestions (last working day / 25th rolled back) and deadlines.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "month": {
            "description": "YYYY-MM",
            "type": "string"
          },
          "region": {
            "description": "england (default), wales, scotland, northern-ireland",
            "type": "string"
          }
        },
        "required": [
          "month"
        ],
        "type": "object"
      },
      "name": "month_planner"
    },
    {
      "description": "PRO ($0.01). One-call briefing on a company or topic: latest GDELT news (optionally UK outlets only), Hacker News discussion and Wikipedia background.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "days": {
            "type": "number"
          },
          "query": {
            "type": "string"
          },
          "uk_only": {
            "type": "boolean"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "news_briefing"
    },
    {
      "description": "FREE. Quick news & facts lookup for a topic: top Wikipedia matches (with summary) and top Hacker News stories from the last 30 days. No key.",
      "inputSchema": {
        "properties": {
          "query": {
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "news_quick"
    },
    {
      "description": "PRO ($0.01). Search worldwide online news (GDELT DOC 2.0, 65+ languages) for a topic: latest articles with headline, URL, outlet domain, time seen and source country. Options: days (1-90, default 7), uk_only, lang (e.g. english), max (≤50).",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "days": {
            "type": "number"
          },
          "lang": {
            "type": "string"
          },
          "max": {
            "type": "number"
          },
          "query": {
            "type": "string"
          },
          "uk_only": {
            "type": "boolean"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "news_search"
    },
    {
      "description": "FREE. Next 3 UK bank holidays for a nation, plus whether today is a working day.",
      "inputSchema": {
        "properties": {
          "region": {
            "description": "england (default), wales, scotland, northern-ireland",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "next_bank_holidays"
    },
    {
      "description": "PRO. Upcoming HMRC and Companies House deadlines for the next N months; add company_year_end for Corporation Tax, CT600 and accounts dates.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "company_year_end": {
            "description": "YYYY-MM-DD",
            "type": "string"
          },
          "months": {
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "tax_deadlines"
    },
    {
      "description": "PRO ($0.01). Search Hacker News stories (via Algolia) for a company, product or topic: title, link, points, comments. Options: days (default 30), min_points, sort ('relevance' or 'recent'), max (≤30).",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "days": {
            "type": "number"
          },
          "max": {
            "type": "number"
          },
          "min_points": {
            "type": "number"
          },
          "query": {
            "type": "string"
          },
          "sort": {
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "tech_news_search"
    },
    {
      "description": "PRO. Count UK working days between two dates (excludes weekends + bank holidays for the nation).",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "from": {
            "type": "string"
          },
          "region": {
            "description": "england (default), wales, scotland, northern-ireland",
            "type": "string"
          },
          "to": {
            "type": "string"
          }
        },
        "required": [
          "from",
          "to"
        ],
        "type": "object"
      },
      "name": "working_days"
    }
  ]
}

What the leaf hashes

{"body":"cec5d09d540996547dc83bfa4c60d8e8dfd58cec569565131dc566a2b2e07e8a","id":1233738,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793347493957488,"prev":null,"subject":"714ea65d-035a-4cf9-8f5b-14f63b38c0c0","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x8b5ba776b6cbb24a24383a5c11b877522bd878056c23aa8201905fd1b20039d7
2. 0xd7f9cdd32d204b38be31c60b3003a670d3c458ea57734a4bb20e21503b5d3847
3. 0xad96ff761210a170f33ac1135468dba9bb9afa63264981f36bf705e35e8bd8f8
4. 0xf1c8215ec1c4d9fd58a9f1738afc11e643aa62ba3b2e5e4c30b370a6f9000ae7
5. 0x16abac4f1cd26ad04757d7617df8db44a62a89805c9582cc407d098676153fd1
6. 0x278ab48ff2f61f54278faef58bf08e6ad980073d113e8332af8d100b9843b02b
7. 0xc67b8d467885c63617b751940fce013cd04bd645f7a173c4d8bc229498b16e56
8. 0xcae6eef3649c76e72bb6455c7edde9836beda33875d570653b7d16533341482e
9. 0x5bc106655c8d6525389bc0d0794ce4e781fc2350670f8c93ebb15b0b1947e7bf
10. 0xc7df33078530284a37a634a40f876a6742abee6f9c0be5369216e4f037fa3c83
11. 0xf8a2f9cdd3b25937c7ae761e659a4e5f0770e367eae5167f6836e867e0669d78
12. 0x81916dd936179b607dcb6a7343b91855bf97f0b7c7bd2a7f252b2fdf82e041da
13. 0x0d06f2034510d710ecc68d1e2023d7419591dfad7a7afe8433d9d14c42fb1ce4
14. 0xc819bc399b4972a3a1ce1897d0bce2138291f900ae9bdb4afaf8fa23d651b490
15. 0xe722b5213af778d8f1621b8b0b61f957ac8d8bb43a780aed8989bfc357e5bc58
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861