Evidence row 222093

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "Return public corpus coverage, source, freshness, and count metadata. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "title": "GetCorpusSummaryArguments",
        "type": "object"
      },
      "name": "get_corpus_summary"
    },
    {
      "description": "Retrieve one complete public bibliographic record by PMID after search. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "pmid": {
            "description": "One PubMed identifier to look up in Noodle's current public corpus, as 1 to 12 digits without a PMID prefix.",
            "pattern": "^[0-9]{1,12}$",
            "title": "Pmid",
            "type": "string"
          }
        },
        "required": [
          "pmid"
        ],
        "title": "GetPublicationDetailsArguments",
        "type": "object"
      },
      "name": "get_publication_details"
    },
    {
      "description": "Retrieve the bounded citation and semantic neighborhood around one PMID. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "from_work_id": {
            "anyOf": [
              {
                "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Optional prior work ID for a reversible graph path.",
            "title": "From Work Id"
          },
          "pmid": {
            "description": "One PubMed identifier, as 1 to 12 digits.",
            "pattern": "^[0-9]{1,12}$",
            "title": "Pmid",
            "type": "string"
          }
        },
        "required": [
          "pmid"
        ],
        "title": "GetPublicationNeighborhoodArguments",
        "type": "object"
      },
      "name": "get_publication_neighborhood"
    },
    {
      "description": "Retrieve one complete public bibliographic record by Noodle work identifier. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "work_id": {
            "description": "Canonical Noodle Literature Corpus work identifier.",
            "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
            "title": "Work Id",
            "type": "string"
          }
        },
        "required": [
          "work_id"
        ],
        "title": "GetWorkDetailsArguments",
        "type": "object"
      },
      "name": "get_work_details"
    },
    {
      "description": "Retrieve the bounded citation and semantic neighborhood around one Noodle work identifier. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "from_work_id": {
            "anyOf": [
              {
                "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Optional prior work ID for a reversible graph path.",
            "title": "From Work Id"
          },
          "work_id": {
            "description": "Canonical work identifier to place at the graph center.",
            "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
            "title": "Work Id",
            "type": "string"
          }
        },
        "required": [
          "work_id"
        ],
        "title": "GetWorkNeighborhoodArguments",
        "type": "object"
      },
      "name": "get_work_neighborhood"
    },
    {
      "description": "Semantically search Noodle's public PubMed-derived biomedical corpus. Include known PMID, DOI, or PMCID identifiers in the query so they can act as exact anchors. Results are for literature discovery and professional review, not diagnosis or treatment.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "anyOf": [
              {
                "maxLength": 128,
                "minLength": 8,
                "pattern": "^[A-Za-z0-9_-]+$",
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "description": "Opaque continuation cursor from the preceding response for the same query and sort order; omit for the first page.",
            "title": "Cursor"
          },
          "limit": {
            "default": 20,
            "description": "Maximum number of publications to return, from 1 to 25.",
            "maximum": 25,
            "minimum": 1,
            "title": "Limit",
            "type": "integer"
          },
          "query": {
            "description": "Natural-language literature question or exact PMID, DOI, PMCID, gene, variant, phenotype, HPO, or OMIM query. Include every known publication identifier when comparing or finding related papers.",
            "maxLength": 200,
            "minLength": 3,
            "title": "Query",
            "type": "string"
          },
          "sort": {
            "default": "relevance",
            "description": "Result ordering: relevance-ranked, newest publication first, or oldest publication first.",
            "enum": [
              "relevance",
              "newest",
              "oldest"
            ],
            "title": "Sort",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "title": "SearchCorpusArguments",
        "type": "object"
      },
      "name": "search_biomedical_literature"
    },
    {
      "description": "Learn about the separate Helena Good MCP. This opt-in information action initiates no payment or outreach and changes no scientific result.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "support_helena"
    }
  ]
}

What the leaf hashes

{"body":"50225fe70bab1e8a06e85b9665aa1a432ba3af11009e4a0abe1bb96a82e1a7c6","id":222093,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027811185454,"prev":null,"subject":"dada639f-1841-4d75-84f7-bce5a0f274e0","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. 0xd1687a097e667580767d6e5f24ce33734b05885fb182c500a6a65219b55d6849
2. 0x8e487889f026d56a34e935224ab50a44dfd7071daebec0ef41fba0ddcd4e625c
3. 0x05433ffb3f857154448460c397f375e3a0c555ed7176f5c16fff51054bd5bcfe
4. 0x0102a96a40b056e7f1f0c341952c998cf6b11dd68b6df7c2de82c53b4ecb5579
5. 0xea8b808366d361d9171fd40a5e1625d5a5f91a929be2e9131483872e5b2d6da4
6. 0x1b1cdefd12d044c1f6e074ac5af26f2d1ceea4f9e80cd6c3a2e6153b51d7c6b0
7. 0xbec09404d7cd0c7f5de654d1e0ff0146c7bf3f1605395234c0774ad02bfb693f
8. 0xace049bb7f2708819690655f09b08442414740beb2fe9b68abc695c43541c1a2
9. 0x35eb5978e25ac6d537082f4ea6c6a25934ff6c541003e7e235a1eae0751cea6b
10. 0xdefcd4fc2ebdfaa82bec33833639fbb6712ab7a9bb3beafebc53c8b103648d9a
11. 0xcbb746ffeda31ff1f1b0d9f74705fed23a3c2abac5d325d65e8e867a7b5e6307
12. 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae