Evidence row 221644

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Open jobs across several companies at once, in one schema. This is the thing no single applicant-tracking system can do: each vendor only knows about its own customers. Companies on different systems come back with the same field names. One company failing does not lose the others.",
      "inputSchema": {
        "properties": {
          "companies": {
            "description": "Up to 20 company board names or careers URLs.",
            "items": {
              "type": "string"
            },
            "maxItems": 20,
            "minItems": 1,
            "type": "array"
          },
          "per_company": {
            "default": 25,
            "description": "Maximum postings per company.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "companies"
        ],
        "type": "object"
      },
      "name": "compare_companies"
    },
    {
      "description": "Find which applicant-tracking system a company's careers page runs on. Greenhouse, Ashby and Lever all publish open job board APIs, and all of them are unusable unless you already know the company's board name. None publishes a directory of its customers, and none could, since no vendor knows about the others. Use this first when you have a company name rather than a careers URL.",
      "inputSchema": {
        "properties": {
          "company": {
            "description": "Company name or board name, for example 'anthropic' or '1Password'. Case and punctuation do not matter.",
            "type": "string"
          },
          "limit": {
            "default": 10,
            "description": "Maximum matches to return.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "company"
        ],
        "type": "object"
      },
      "name": "find_company_board"
    },
    {
      "description": "Every open job at one company, read from its own careers system. Returns title, department, location, employment type, workplace type, posted date, a parsed salary range where the employer publishes one, and a verify_url pointing at the employer's own advert. Salaries are refused rather than guessed: an hourly rate, an ambiguous currency, or bands in two currencies all yield no figure, and salary_text keeps whatever the employer wrote.",
      "inputSchema": {
        "properties": {
          "company": {
            "description": "A board name ('stripe'), a careers URL ('https://jobs.ashbyhq.com/ramp'), or system:name ('ashby:ramp').",
            "type": "string"
          },
          "include_description": {
            "default": false,
            "description": "Include the full job description. Off by default because descriptions are long; contact details are removed either way.",
            "type": "boolean"
          },
          "limit": {
            "default": 50,
            "description": "Maximum postings to return.",
            "maximum": 200,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "company"
        ],
        "type": "object"
      },
      "name": "list_open_jobs"
    }
  ]
}

What the leaf hashes

{"body":"3c08a283390aa19f7524c8b61ec5085faf0589b41d11083f087291b45bbe7fde","id":221644,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027490286253,"prev":null,"subject":"36f08a24-b4d7-4540-872f-7d281087f1d8","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. 0x60742905053fc75510136e31d4080b219bfc77864bc5c368979cb1219e7d292b
2. 0x0c1c81ccc3432af652715bd114a0ccdbae18c9701136b599f58f1224670b7cd6
3. 0xbe5f7ea2f778ebb16f66d48406e5b160401d901bd525a42ce45315ddd0a34e07
4. 0x1b1d4086336df4f8dae165e65552692f9d2a697ef2b61b3208a6895d6a237337
5. 0x5d96879ee3242ec43abd55cdbeae0fa1237f2f87ca002e297f586e45e761ab6e
6. 0x2791809a5f6e306f9fe93e075263e42b22371018ab0ecaa988c7ffb81c1f86c1
7. 0x70076396426150209cc294dcf4d28b0b5c0086e25126d9dc72eada097588e3ea
8. 0x953842eef3fbab1f7078845f0890074a207660de4bbf63423c582786aaa60787
9. 0xa27b47db4426e5dcf08c8bc517b21f092d888f8ac2da502f25f164c3319e72f3
10. 0xbc2e807bf00b2ed1c806b85b0cbba8abd3b9788e0e8000d164ef64dfc99a3dcb
11. 0xa50fca837a4f035829bddff38d023aff0ec4482f9bb5df60ea5b321b01e3e922
12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae