Evidence row 257397

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Statutory financial disclosure (決算公告) raw text blocks, parsed from gazette page scans by a Vision LLM. Paid via x402: each call costs 0.05 USDC. This tool returns the HTTP 402 payment challenge for the resource. Private beta note: a successful settlement is acknowledged with a receipt that records your priority access; the dataset itself unlocks for early settlers as provisioning goes live.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "corporate_id": {
            "description": "13-digit Japanese corporate number (法人番号), e.g. 7010001012345",
            "type": "string"
          }
        },
        "required": [
          "corporate_id"
        ],
        "type": "object"
      },
      "name": "get_gazette_financials"
    },
    {
      "description": "FREE during beta — returns live data. Un-aggregated procurement contracts, subsidy grants and certifications, pulled on demand from gBizINFO upstream. Source: gBizINFO (経済産業省), attribution included in every response.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "corporate_id": {
            "description": "13-digit Japanese corporate number (法人番号), e.g. 7010001012345",
            "type": "string"
          }
        },
        "required": [
          "corporate_id"
        ],
        "type": "object"
      },
      "name": "get_government_records"
    },
    {
      "description": "Un-aggregated month-over-month insured headcount deltas (健康保険・厚生年金) for one Japanese corporate number. Paid via x402: each call costs 0.05 USDC. This tool returns the HTTP 402 payment challenge for the resource. Private beta note: a successful settlement is acknowledged with a receipt that records your priority access; the dataset itself unlocks for early settlers as provisioning goes live.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "corporate_id": {
            "description": "13-digit Japanese corporate number (法人番号), e.g. 7010001012345",
            "type": "string"
          }
        },
        "required": [
          "corporate_id"
        ],
        "type": "object"
      },
      "name": "get_pension_headcount_log"
    },
    {
      "description": "Free catalog lookup. Lists the raw regulatory datasets available for one Japanese corporate number with per-call x402 pricing (0.05 USDC per call). Use the dataset tools or the returned api_url to retrieve data.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "corporate_id": {
            "description": "13-digit Japanese corporate number (法人番号), e.g. 7010001012345",
            "type": "string"
          }
        },
        "required": [
          "corporate_id"
        ],
        "type": "object"
      },
      "name": "list_company_datasets"
    },
    {
      "description": "FREE — returns live data. Resolve Japanese company names to 13-digit corporate numbers (法人番号) via gBizINFO. Use the corporate number with the dataset tools.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "name": {
            "description": "Company name (Japanese), partial match supported",
            "minLength": 1,
            "type": "string"
          },
          "page": {
            "description": "Result page, default 1",
            "maximum": 9007199254740991,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "search_corporations"
    }
  ]
}

What the leaf hashes

{"body":"f1619487e8745c80d2a4fba4bb9a7805fcf58531d51826ccfd305432bbfccacf","id":257397,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793029723789791,"prev":null,"subject":"9eec32b1-1498-403d-83e0-0cbc45f08e58","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. 0x3cad39deef4a945237ae9d3fb90aa94e98b93812db829ed29a0501df11038fa8
2. 0xa7493fe3dae2183685b264f8b7e086dc7055749f65773f58b36518d13d3f1908
3. 0xbd562383730ebf86897520caf2c9817f77f800fd08e9357a20936ca87ce44f85
4. 0xfd428f4d3038db44ebaaada237f06ff151937c8725105ff453c6ba908613e0dd
5. 0xbd5f521855c21ee330dd6d6ef19df1a1137eba1acb91aca794755c13ff1b669f
6. 0x9feba27e7912069f6404eb799631530b43ec72870ee8b04b80fdc8c18625f9e2
7. 0xb7c85ad7424dbb42a435e8411ccfa8a615a892908f0ac554e261511da0d1af7a
8. 0x1a037fd30b83cb74700762e15cca812a0360bd4f4382c786f4866c425e9a3e70
9. 0xbf3afad6662f2283813602aa95c0754bc35af8c90e0347e14b7b44b397bdd35e
10. 0x210e4fd4b2b60dbd88a7f42093d3d642e105b1738155bf382034c694bee5fbcf
11. 0xd7dd18a37a5bb07e81a8083d8d1469e052ceebb2814b00f5a8d4f4cd181a5108
12. 0xd04df0f7f3be4d014b4cea8172ada286fbcf5bcb32ae1b281704fd75627b661b
13. 0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae