Evidence row 302246

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "One company's profile on Ranked and its open Tokyo jobs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "The company id returned by search_companies or on a job, e.g. \"keyence\".",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_company"
    },
    {
      "description": "Full details of one Ranked job by id: the complete description, salary, Japanese/English requirements, visa sponsorship, Ranked page URL for details and applying, and source freshness.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "The job id returned by search_jobs.",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_job"
    },
    {
      "description": "Search companies hiring in Tokyo on Ranked, by keywords over name, industry and description.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "hiring_only": {
            "default": true,
            "description": "Only companies with open jobs on Ranked.",
            "type": "boolean"
          },
          "limit": {
            "default": 10,
            "description": "Results per page.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "offset": {
            "default": 0,
            "description": "Results to skip, for paging.",
            "minimum": 0,
            "type": "integer"
          },
          "query": {
            "description": "Keywords, e.g. \"fintech\" or \"game studio\".",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_companies"
    },
    {
      "description": "Search live job openings in Tokyo, Japan, listed on Ranked (ranked.jp). Built for foreign professionals: filter by whether English is enough, whether Japanese is required, visa sponsorship, remote work and minimum annual salary in yen. Results are ordered by Ranked's rank score. Each job carries its Ranked page, where users can view details and continue to apply, and when the posting was last verified live.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Job category.",
            "enum": [
              "Software & IT",
              "Business & Corporate Roles",
              "Creative & Media",
              "Engineering & Infrastructure (Physical)",
              "Customer Support & Service",
              "Education & Teaching",
              "Other"
            ],
            "type": "string"
          },
          "company": {
            "description": "Only jobs at companies whose name contains this text.",
            "type": "string"
          },
          "employment_type": {
            "enum": [
              "full_time",
              "part_time",
              "contract",
              "freelance",
              "internship",
              "temporary",
              "new_grad"
            ],
            "type": "string"
          },
          "english_workable": {
            "description": "Only jobs where English is enough (no Japanese requirement stated or reviewed).",
            "type": "boolean"
          },
          "limit": {
            "default": 10,
            "description": "Results per page.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "no_japanese_required": {
            "description": "Only jobs that explicitly need no Japanese. Stricter than english_workable.",
            "type": "boolean"
          },
          "offset": {
            "default": 0,
            "description": "Results to skip, for paging.",
            "minimum": 0,
            "type": "integer"
          },
          "posted_within_days": {
            "description": "Only jobs first seen within this many days.",
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "description": "Keywords matched against title, company, summary and tags, e.g. \"backend go\" or \"robotics\".",
            "type": "string"
          },
          "remote": {
            "description": "Only jobs allowing remote work.",
            "type": "boolean"
          },
          "salary_min": {
            "description": "Minimum annual salary in JPY, e.g. 8000000. Jobs with no stated salary are excluded.",
            "minimum": 0,
            "type": "integer"
          },
          "visa_sponsorship": {
            "description": "Only jobs whose employer sponsors or may sponsor a work visa. Each result's visa.sponsorship says how sure: supported, likely or possible.",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "search_jobs"
    }
  ]
}

What the leaf hashes

{"body":"d6c5aa0809f99a7ab4b4b1a591da827514d3bbe16eb2d2cb7f32d2fe6c4cee7b","id":302246,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793054561933946,"prev":null,"subject":"2b93de6f-60eb-42fa-8d0c-fd157e08db97","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. 0xe7ef7495fe671a5cfec5a17ddead9a542edc7a3d5ade4444af624b525de9da9c
2. 0xc419ac26d9ef675df5b50189e69623a6510fc9598cdc182495540f064ba38ef5
3. 0x77fc91fb76608d0dda9a5a385c4ce2ec955043e1a414127d7c77e2ba900b8ee4
4. 0xe61877f7731a0a5ea2163f6e70472a46148ff8c43d818a19b79c16447364b437
5. 0x4813ade84ff14bf33b6cafbdec5e25fa95f2d2549b0a0777766ad214c211e5c5
6. 0xefb9b74bef0551770279ac296889d10abcdd3d1cb49aea93042c6128ff81eabd
7. 0xe1beada8d9879fc6beb4ffcc24de036fe2c02f740e852e594e2299d331af6605
8. 0x876e11971cf62104943faf3e5819165a22575501f0e6e2bb8228cd9fdc38c4d0
9. 0xc5b6279776abe90ce03700db144244784753457cc66cded78bb288194a296ae7
10. 0x5da7821808d0b41f2fd896fc8aa021cd9f87f6fb804fcaa5fa71fc51d13292df
11. 0xf9ef09a725d52af13e504e0eafd5a3073b223792ca665fa964297ee3fc3cee9b
12. 0x3d0b5282d5282c30fc9f86662367cab01d0dba65f13d2968391a7d087b79dfb3
13. 0xafcc1fe54cfe00a3a1de33df127340075f22433bb89848bbc81499cd7aca5b2b
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae