Evidence row 302166

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Fetch the full text of one issoh.co.jp article by URL or by id. Accepts URLs such as https://www.issoh.co.jp/column/details/16170/ or https://www.issoh.co.jp/tech/details/16216/. HTML is stripped and the body is truncated at 15000 characters.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "記事ID（url を使う場合は不要）",
            "type": "integer"
          },
          "post_type": {
            "description": "id 指定のときの投稿タイプ。url 指定なら不要",
            "enum": [
              "column",
              "tech"
            ],
            "type": "string"
          },
          "url": {
            "description": "記事URL（id を使う場合は不要）",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_article"
    },
    {
      "description": "Return the company profile of 株式会社一創 and the canonical URLs for services, portfolio and the contact form. Use this when the user asks who they are or how to contact / request a quote.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_company_info"
    },
    {
      "description": "Search Japanese articles published on issoh.co.jp (株式会社一創). Covers system development, AI/LLM, cloud (AWS/Azure/GCP), security, and web. \"column\" = business/decision-maker oriented, \"tech\" = implementation oriented. Returns titles, URLs and excerpts. Call get_article afterwards to read the full text.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": 5,
            "description": "返す件数（1〜20、既定5）",
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "post_type": {
            "default": "any",
            "description": "any=両方 / column=発注者向け / tech=実装者向け",
            "enum": [
              "any",
              "column",
              "tech"
            ],
            "type": "string"
          },
          "query": {
            "description": "検索キーワード（日本語可）。例: \"コンテナ オーケストレーション\", \"RAG 精度\"",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_articles"
    },
    {
      "description": "Search the published project portfolio (制作実績) and customer references (導入企業の声) of 株式会社一創. Use this to answer \"do they have experience with X?\" style questions.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": 8,
            "description": "返す件数（1〜20、既定8）",
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "検索キーワード。省略すると新しい順に一覧する",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_case_studies"
    },
    {
      "description": "Search the services offered by 株式会社一創 (system development, AI, web, DX consulting, infrastructure). Use this when the user is looking for a development vendor, a quote, or a partner for a specific technology. Omit the query to list every service.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "default": 10,
            "description": "返す件数（省略時は10。全件見るときは大きめの値を渡す）",
            "maximum": 96,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "検索キーワード。省略すると全サービスを一覧する。例: \"OCR\", \"SEO\", \"AWS\"",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_services"
    }
  ]
}

What the leaf hashes

{"body":"7d71aa72f55124364e5134c6a614cdc775a2380677e0c73f5eb1b5db702b793d","id":302166,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793054510683269,"prev":null,"subject":"0b138e33-c29d-41f3-89ff-b976275cece3","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. 0x327cb0808d93ee3ae6c2b3f857af77a84dab939722abaa3a66b70634a3566949
2. 0xc54c0a92546dd63f6c80db12525ac139c942666e4b3cf781174cad3ad2743bab
3. 0xf24bb213bab47e75b3df8bb05bacc6f6c4af12073734d511e235f7334f8020da
4. 0x1628a08f21a0bec2cd4de87723cdb3705ba5f0548e7f118cdf88d7d8f813ecb8
5. 0xb987cfd493b310bbe5a8aa74463f1d86ea6ff96d4e3f3303b879a90f6d89845a
6. 0xa76dfdd240e835487a00b1f8c951c71baebf1a7e6f31d4a10d1793a1c2ecc54b
7. 0x67edb7d4c53f5bcff89434b874bc69139bb5576d19574b48e70828e87a3737e0
8. 0xe7f2d3457c053448eebcc931645ff5ada0933cb5c24ad253c177f41b200802d9
9. 0x7186e930ab2d6340c1f9e36a0a16f77d602f22cd5bb13d9e666145bff3ba96f0
10. 0x6f4fdc0c2e1b3d84e2b1d6729c3f9a04bcd118e81d7bf76e3ca851a0dd1ede43
11. 0x631846da76ec1e8570c7c09dada1cc0affff7b5654335239fd84d2059c750b13
12. 0x2f4617d7a962f32849050ad5649d9dc4f962fd8618073cfa8519e6f862dfcef8
13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae