Evidence row 257250

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Fetch a company profile by slug, including its startup.jobs URL and live listing count.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "Company slug, as returned in job payloads",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_company"
    },
    {
      "description": "List all live job listings for one company (no recency window), newest first. Returns compact summaries; use get_job for full descriptions.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "description": "next_cursor value from the previous page",
            "type": "string"
          },
          "limit": {
            "description": "Results per page (default 20)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "slug": {
            "description": "Company slug",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_company_jobs"
    },
    {
      "description": "Fetch a single job listing by id, including the full description. Share the job's startup.jobs URL with the user so they can apply there.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Job id from search_jobs results",
            "type": "integer"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_job"
    },
    {
      "description": "Job posting volume trends on startup.jobs, optionally filtered by role and/or country. The free tier returns a 12-month summary with year-over-year change; full access unlocks the monthly time series (up to 36 months).",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "Two-letter ISO country code",
            "type": "string"
          },
          "months": {
            "description": "How many months of history (default 12, full access only)",
            "maximum": 36,
            "minimum": 1,
            "type": "integer"
          },
          "role": {
            "description": "Role slug from list_roles (specific roles only, not top-level categories)",
            "type": "string"
          }
        },
        "required": [],
        "type": "object"
      },
      "name": "job_trends"
    },
    {
      "description": "List countries with jobs (name, ISO country code). Use the codes as the country filter in search_jobs, job_trends, and salary_benchmarks.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "list_countries"
    },
    {
      "description": "List the role taxonomy (title, slug, parent_slug). Use slugs as the role filter in search_jobs, job_trends, and salary_benchmarks.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {},
        "required": [],
        "type": "object"
      },
      "name": "list_roles"
    },
    {
      "description": "Salary benchmarks (yearly, USD) computed from startup.jobs listings that disclose compensation, optionally filtered by role and/or country. The free tier returns an aggregate over the last 12 months; full access unlocks the monthly time series and company-level benchmarks.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "company": {
            "description": "Company slug (full access only)",
            "type": "string"
          },
          "country": {
            "description": "Two-letter ISO country code",
            "type": "string"
          },
          "months": {
            "description": "How many months of history (default 12, full access only)",
            "maximum": 36,
            "minimum": 1,
            "type": "integer"
          },
          "role": {
            "description": "Role slug from list_roles (specific roles only, not top-level categories)",
            "type": "string"
          }
        },
        "required": [],
        "type": "object"
      },
      "name": "salary_benchmarks"
    },
    {
      "description": "Search live startup job listings, newest first. Returns compact job summaries; use get_job for the full description. The free tier covers the last 14 days of listings; full access unlocks the archive and posted_before.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "company": {
            "description": "Company slug, as returned by get_company or search results",
            "type": "string"
          },
          "country": {
            "description": "Two-letter ISO country code (e.g. US, NL)",
            "type": "string"
          },
          "cursor": {
            "description": "next_cursor value from the previous page",
            "type": "string"
          },
          "employment_type": {
            "enum": [
              "full-time",
              "part-time",
              "internship",
              "contractor"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Results per page (default 20)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "posted_after": {
            "description": "Only jobs published after this ISO 8601 date or timestamp",
            "type": "string"
          },
          "posted_before": {
            "description": "Only jobs published before this ISO 8601 date or timestamp (full access only)",
            "type": "string"
          },
          "q": {
            "description": "Keywords matched against job titles and company names",
            "maxLength": 200,
            "type": "string"
          },
          "role": {
            "description": "Role slug from list_roles (e.g. software-engineer)",
            "type": "string"
          },
          "workplace_type": {
            "enum": [
              "on-site",
              "remote",
              "hybrid"
            ],
            "type": "string"
          }
        },
        "required": [],
        "type": "object"
      },
      "name": "search_jobs"
    }
  ]
}

What the leaf hashes

{"body":"c995096a87fac9e8c6f6c371ab3fdedcf9685b05c8159e1556a8a7724dbdd20a","id":257250,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793029599871905,"prev":null,"subject":"0ae4a5dc-2912-460d-a00a-8c6c49790bd8","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. 0xb273dfbe00d1b4ed10d91994f79de056e72eb4b23c53c54965d2234a2910347d
2. 0xe1e2d78b1b8a454103b82d0d95751addc7ab310af615d6b7788ba094cb6b02ab
3. 0xba5e27b60d9cc650ae1a1e034a7a3c78cd8992b2d790b650e67281425f63ed50
4. 0x58338af6c1ba2ff13aaefd60a736b859059b3bd0ed3d5ee576748ddf640a0419
5. 0x7c712d607cf28e83fc98db06e13c818f0c4627db8762370dea9eb28ddc52bf50
6. 0x2fabc5d8e790b480013fd7883e02e70a18aacee636c943b23d64cc5e255c9926
7. 0x44e6f38d888e2aabb18c5602caa3d3d3ff2132c42f04d65809da2856e99f9e49
8. 0x3f6102649d70ad488a746454b69dee4d39d7e8483f42393e2835065bcc213ee4
9. 0xc75e8167a9254eec94bbebb40aeef2cc19d84bebc85950992a84682d73ac18cc
10. 0xc6dd71e7d85dea5e09f179642fe5f62de05a435eb806a0e7894d08bd1f37f002
11. 0x08b0ee375f7c28afd23e265e3e1bed91ba37304e42eafa665ef4a7f785b3e7bf
12. 0x3d6ec9d5ef8daa604601742088e213da0a439db6eff6ce50ec3ffb264a60ddd3
13. 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae