Evidence row 564218

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "法人番号13桁で、企業担当者が確認して公開したプロフィール・出典・情報の日付・公開確認日時を取得します。未公開ならnot_found。確認記録は独立した事実検証ではありません。Get a published company-confirmed profile by corporate number; never returns drafts.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "corporateNumber": {
            "description": "法人番号13桁",
            "pattern": "^\\d{13}$",
            "type": "string"
          }
        },
        "required": [
          "corporateNumber"
        ],
        "type": "object"
      },
      "name": "get_company_profile"
    },
    {
      "description": "slug を指定して、公開プレス1件の要約(lead)・構造化された統計(facts)・関連求人・帰属(provenance)を取得します（本文は企業自身が投稿したもののみ、運営取込は著作権配慮で原本リンクを提供）。Get one published press article: summary, structured facts, related jobs, and provenance. Full body is included only for company-submitted articles; for operator-curated ones the original source link is provided instead.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "slug": {
            "description": "記事の slug（search_press の結果に含まれる）",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_press_article"
    },
    {
      "description": "企業名または法人番号(13桁)を指定して、その企業の公開済みプレス一覧を取得します。List all published press releases for one company, by name or by 13-digit corporate number.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "company": {
            "description": "企業名（部分一致）または法人番号13桁",
            "maxLength": 100,
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "description": "最大件数（既定20, 上限50）",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "company"
        ],
        "type": "object"
      },
      "name": "list_company_press"
    },
    {
      "description": "日本企業の公開プレスを検索します。収録された法人番号・出典・投稿区分を返します。法人番号の収録は内容の事実確認を意味しません。Search published Japanese company announcements with source URLs and publication provenance. Content is not independently verified. category one of: funding(経営・資金調達), product(新商品・新サービス), partnership(事業提携・協業), hr(人事・組織), event(イベント・キャンペーン), report(調査・レポート), award(受賞・認定), store(店舗・施設).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "category": {
            "description": "カテゴリ: funding(経営・資金調達), product(新商品・新サービス), partnership(事業提携・協業), hr(人事・組織), event(イベント・キャンペーン), report(調査・レポート), award(受賞・認定), store(店舗・施設)",
            "enum": [
              "funding",
              "product",
              "partnership",
              "hr",
              "event",
              "report",
              "award",
              "store"
            ],
            "type": "string"
          },
          "company": {
            "description": "企業名（部分一致）または法人番号13桁（完全一致）",
            "maxLength": 100,
            "type": "string"
          },
          "limit": {
            "description": "最大件数（既定10, 上限50）",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "キーワード（headline/lead を部分一致）",
            "maxLength": 100,
            "type": "string"
          },
          "since": {
            "description": "この日時以降に公開（ISO8601, 例 2026-01-01）",
            "type": "string"
          },
          "tag": {
            "description": "タグ（完全一致）",
            "maxLength": 50,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_press"
    }
  ]
}

What the leaf hashes

{"body":"6b9e5e4608df2c3ad499e45bdb7f81ec79cc18c4005c749216f44f7a6d8b2033","id":564218,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137777620463,"prev":null,"subject":"4ac8ad06-549d-41b7-8f9b-9714a74443b8","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. 0x878cd7fabdb9c2d7a3aac2d02c8967aa1eaa30e2cc07d516375de8f788a149c6
2. 0xa2776d956a3057531a519588e5541611761ebd3561f78c36bc8888b51f5f7ec7
3. 0xbfd5510e0bbf885d9bbf6aa2c236babd01a063f7a0d188b76a284bb7a805ef68
4. 0x7b9a606d7839b093e1f6b7de66bb494782aa8ce9c59614a86a1bf5bf6e892a6b
5. 0x5afc9dd4980a2712c83d64d782ce2397148f27dec99f3c87892504f6c298318a
6. 0xbc687b1b02b13a02a65208823f2bd1e3cf3c5645fb1dc48c4fa54117620ab4f0
7. 0x7dc30e901a4e5c5af981cfde2f3e176f2e5e395181338512d13f135f4112e290
8. 0x4d668837707249f9495aec030437c745adc30d93331ea6b71d51104aef07b19e
9. 0x4861721e114e2f2f342bf5cf33a2ca3760578f27c7d69c10754c63118b754b09
10. 0x9dc25a7fda1522dda5d2072e86165df16f49960ad44e48a53e9d50481f9174bc
11. 0x75376c2d4b66495f3289538d2a16eac6d0471b87780b054af7810e758374d02a
12. 0x470f6acef0d823e6f9e5fa35684563c8f27c3d338b165b457171afc3d44d4d86
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4