Evidence row 290759

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "FY2025 federal prime contract and grant obligations in a US county (USAspending.gov, place of performance): dollars, per-resident values, population and the county's contract rank in its state.",
      "inputSchema": {
        "properties": {
          "county_fips": {
            "description": "5-digit county FIPS code, e.g. \"51059\" (Fairfax County, VA)",
            "pattern": "^\\d{5}$",
            "type": "string"
          }
        },
        "required": [
          "county_fips"
        ],
        "type": "object"
      },
      "name": "county_federal_spending"
    },
    {
      "description": "Check whether a CVE is in CISA's Known Exploited Vulnerabilities (KEV) catalog; if so return vendor, product, date added, federal due date, known ransomware use, EPSS probability/percentile, CVSS score/severity/vector, CWE and required action.",
      "inputSchema": {
        "properties": {
          "cve_id": {
            "description": "CVE identifier, e.g. \"CVE-2021-44228\"",
            "pattern": "^[Cc][Vv][Ee]-\\d{4}-\\d{4,7}$",
            "type": "string"
          }
        },
        "required": [
          "cve_id"
        ],
        "type": "object"
      },
      "name": "cve_kev_lookup"
    },
    {
      "description": "Link-graph rank of a popular website (top 5,000): Common Crawl harmonic-centrality and PageRank rank, hosts crawled, previous-crawl rank, Majestic Million rank and referring subnets. For any other domain use Linkheft on Apify (apify.com/cybermax/domain-authority).",
      "inputSchema": {
        "properties": {
          "domain": {
            "description": "Registrable domain, e.g. \"github.com\"",
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "domain_rank"
    },
    {
      "description": "List the CVEs most recently added to CISA's Known Exploited Vulnerabilities catalog, newest first, with EPSS, CVSS and due date in the summary.",
      "inputSchema": {
        "properties": {
          "limit": {
            "default": 10,
            "description": "How many items (1-50)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "latest_kev"
    },
    {
      "description": "List the newest US vehicle and equipment recalls from NHTSA, newest first, with risk and remedy.",
      "inputSchema": {
        "properties": {
          "limit": {
            "default": 10,
            "description": "How many items (1-50)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "latest_recalls"
    },
    {
      "description": "Look up an NHTSA vehicle/equipment recall campaign from the last 12 months: manufacturer, component, units affected, do-not-drive and park-outside flags, summary, risk, remedy and affected make/model/year list.",
      "inputSchema": {
        "properties": {
          "campaign": {
            "description": "NHTSA campaign number, e.g. \"26V601000\"",
            "pattern": "^\\d\\d[A-Za-z]\\d{6}$",
            "type": "string"
          }
        },
        "required": [
          "campaign"
        ],
        "type": "object"
      },
      "name": "vehicle_recall"
    },
    {
      "description": "Look up a US ZIP code: city, state, county, coordinates, time zone and Census ACS 2020-2024 demographics (population, median age, household and per-capita income, median home value, median gross rent, housing units, owner-occupied share).",
      "inputSchema": {
        "properties": {
          "zip_code": {
            "description": "5-digit US ZIP code, e.g. \"10001\"",
            "pattern": "^\\d{5}$",
            "type": "string"
          }
        },
        "required": [
          "zip_code"
        ],
        "type": "object"
      },
      "name": "zip_lookup"
    }
  ]
}

What the leaf hashes

{"body":"b0b9fa912d6ebd5e2ecc7ff57df97e357195215000fdcf35fc3e72a314cfd84a","id":290759,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793047531674702,"prev":null,"subject":"3b53334f-7288-47b4-8e11-c6ea06cc950a","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. 0xbef4815724a92e22801f02acb1afcd80851f7319113946fabc80f7a462a80891
2. 0x3e753c17a52c1fe5aaf33a485445d97031aa56bc762211194d7fa948fc04a1f1
3. 0x805fade5d865510efceb3d62aabb4588aa292e2271dec2c3916fa60413e955cc
4. 0x98c2d7a896d6f34216f053c4107deb29a5e1b815a16ae27fffc1545e3e421b4e
5. 0xacdae84ee972367821639ccebca36e61a7fc9e45ff690554184176a365cb61ef
6. 0x618b1ae86198e148043d3afd43ea0bf624c1cc5248b8e68aac2e68077204713b
7. 0x72a059f0c004f53103db7b7dfa531abc4059259b120632853edca6325a0a2aaa
8. 0x5da62d2ff906c688162e49cfa4bc52e395ad907f66b4ed6dd1aa427faeb0d611
9. 0x9256e1cced21980ce963d76c45e282793b4c006b22bce6775e9d2eb3e8e04993
10. 0x48d04da54de88082e11aa43e473de1dfd941bdfb166e542aa1c13b29e3d7754a
11. 0x0decbdcd600e934c38d679c1b99f27ba6676644e856ed6ba36bca74feb432866
12. 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae