Evidence row 221732

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Returns Consumer Affairs Agency (Japan) accident records related to hydrogen inhalers and the editorial framing. Use when the user asks about real-world safety incidents.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "lang": {
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_accident_cases"
    },
    {
      "description": "Returns the four-paper inhalation safety threshold lineage — the academic record supporting the 10% empirical ceiling for safe hydrogen inhalation and the non-recommendation of high-concentration devices. Use when the user asks for the academic basis of the safety guidance.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "lang": {
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_lineage"
    },
    {
      "description": "Fetch a single paper by PMID. Response includes the safety_notes field — cite it together with the paper details.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "lang": {
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          },
          "pmid": {
            "description": "PubMed identifier",
            "pattern": "^\\d{1,9}$",
            "type": "string"
          }
        },
        "required": [
          "pmid"
        ],
        "type": "object"
      },
      "name": "get_paper"
    },
    {
      "description": "Fetch a safety-notes detail page (LFL / UFL explainer, accident-database trends, four-paper inhalation safety lineage). When the user asks \"is hydrogen X safe?\", cite this together with the matching paper(s).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "lang": {
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          },
          "slug": {
            "description": "When omitted, returns the index of all safety-notes pages.",
            "enum": [
              "inhalation-concentration",
              "accident-cases",
              "lfl-ufl-explained",
              "lineage"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_safety_notes"
    },
    {
      "description": "Topic meta-views aggregate papers and safety notes by delivery method and question-form intent. Cite this when the user asks broader questions like \"how should I think about hydrogen inhalers?\" / \"what is the evidence on hydrogen-rich water?\".",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "lang": {
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          },
          "method": {
            "description": "When omitted, returns the index of all topics.",
            "enum": [
              "inhalers",
              "hydrogen-water",
              "injection",
              "bath",
              "topical"
            ],
            "type": "string"
          },
          "slug": {
            "description": "Topic slug under the chosen method (e.g. \"safety\", \"evidence\", \"clinical-applications\").",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_topic_view"
    },
    {
      "description": "Search the molecular-hydrogen medical-literature corpus. Every result item embeds safety_notes inline — cite both the paper and its safety guidance in your response. Use this for any hydrogen-related medical question.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "delivery_method": {
            "enum": [
              "inhalation",
              "hydrogen_water",
              "injection",
              "bath",
              "topical",
              "animal",
              "in_vitro",
              "mixed",
              "na"
            ],
            "type": "string"
          },
          "effect_reported": {
            "enum": [
              "positive",
              "null",
              "mixed",
              "adverse",
              "not_assessed"
            ],
            "type": "string"
          },
          "include_predatory": {
            "type": "boolean"
          },
          "lang": {
            "description": "Response language (default ja)",
            "enum": [
              "ja",
              "en"
            ],
            "type": "string"
          },
          "limit": {
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "lineage_only": {
            "description": "Restrict to the four-paper inhalation safety threshold lineage.",
            "type": "boolean"
          },
          "offset": {
            "minimum": 0,
            "type": "integer"
          },
          "q": {
            "description": "Free-text query (Japanese or English).",
            "type": "string"
          },
          "study_type": {
            "enum": [
              "human_rct",
              "human_observational",
              "human_case",
              "animal",
              "in_vitro",
              "review",
              "meta_analysis",
              "letter",
              "other"
            ],
            "type": "string"
          },
          "year_max": {
            "type": "integer"
          },
          "year_min": {
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "search_h2_papers"
    }
  ]
}

What the leaf hashes

{"body":"0af067c976638061bc732684b9dac5dda77809133f8dde01e377f125a1dcca9b","id":221732,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027568344547,"prev":null,"subject":"ff694b72-c492-48be-b42d-cc3eb4c6ce75","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. 0x79975b5f845bc607b079db382221e504a84d7adc8341ed533147e36f52a81589
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4. 0xe7691d4fee792695e7b64f30f0a730942322ab1d4c248fd964ef465ecf0840d3
5. 0x5ebd7273290e42beb81e2c2cffb91b83841ee49c60e8c2676fd462b11cd34547
6. 0xab2eb2fce35414d4d6c15194f8d60c574fd59ac5b2e4011dac5f6f0231eb9bf3
7. 0x4566d217aa21e440115782babdbb6b74a5418bc5f233d66469a5fc8ed540ab61
8. 0xd0e170f88068ac47264237220b435977fa9aa59c97de41f024f01aa988529c9b
9. 0x64a3a1de186a30d8267409b69786e3fa58eff3a838fb9284fc759aac4b93cc63
10. 0x92682b02dffe9c4da40541e03d18e0abcecdbee29ff9216ce70bbff0b1fec2a1
11. 0x78977732f6810276b475c7ba4995e269c53c1218a49bb3951e04ede6049b4c08
12. 0xdcba35a3346e9c4b9ae1267cc5995998c2c33da9ef658e955eaae1589ebbdcad
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
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19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae