Evidence row 563249

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Details for one CVE or GHSA identifier, including whether CISA lists it as actively exploited (KEV) and its EPSS exploitation probability. Use to judge real-world urgency.",
      "inputSchema": {
        "properties": {
          "id": {
            "description": "e.g. CVE-2024-3094 or GHSA-xxxx-xxxx-xxxx",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "check_cve"
    },
    {
      "description": "Security assessment of one npm or PyPI package: letter grade, findings, known vulnerabilities, deprecation status, and — for MCP servers in our directory — the real resolved dependency count. Use before recommending or installing a package.",
      "inputSchema": {
        "properties": {
          "ecosystem": {
            "enum": [
              "npm",
              "PyPI"
            ],
            "type": "string"
          },
          "name": {
            "description": "Exact package name",
            "maxLength": 214,
            "type": "string"
          }
        },
        "required": [
          "name",
          "ecosystem"
        ],
        "type": "object"
      },
      "name": "check_package"
    },
    {
      "description": "Recently published vulnerabilities from the tracked pool, ranked KEV-first then by EPSS. Use for \"what should I worry about this week\".",
      "inputSchema": {
        "properties": {
          "kev_only": {
            "default": false,
            "type": "boolean"
          },
          "limit": {
            "default": 10,
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          },
          "min_severity": {
            "enum": [
              "LOW",
              "MEDIUM",
              "HIGH",
              "CRITICAL"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "latest_vulns"
    },
    {
      "description": "The MCP server directory with real resolved dependency counts. Use when recommending an MCP server, or to compare how much third-party code candidates pull into the agent. For a graded security assessment of one server, call check_package.",
      "inputSchema": {
        "properties": {
          "sort_by": {
            "default": "total_packages",
            "description": "total_packages sorts heaviest first",
            "enum": [
              "total_packages",
              "name"
            ],
            "type": "string"
          },
          "understates_only": {
            "default": false,
            "description": "Only servers whose count understates real surface (mostly prebuilt binaries)",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "list_mcp_servers"
    }
  ]
}

What the leaf hashes

{"body":"91638276a0dc3e387824c1d1a3b39ad74478701c6bd8978cd9fee9feeb96ca1e","id":563249,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137660547500,"prev":null,"subject":"a3cdce56-eed4-4d4f-96e4-a42b482a7d4e","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x88231303b9a9d7a7d1c05e01af096d07345b7c5cc220d1b7d6273578db7e27b1
2. 0xa20de1da1b7f4a062c3f762efb20a140b736a478439c6b32ef15e8778b933332
3. 0x68351d14eceecdc691aac77295341ee8dd657b87ec7e7734f0dc87a4fc229d2e
4. 0x55de645f127f87d0e803b8621bf6818a92155aea17f79a300c5e8e6a693ddecc
5. 0x6e85472f4c94a1fbadf9ac8dbf9b7a5f74cab2c2afded63fcea3ff8bc3e1130d
6. 0x61ede374e8dae8d3637a2933140cfd186e173e2edd8da9758379af4e57fbee88
7. 0x837200abd1d9bbfdd9fc4b785559f8b409492480e7a940af04498f4863e12771
8. 0xb8202301c65c2b0832b7b4ba0f33f654c8731ad20b39a8ecf172ec06c137c8dd
9. 0x97effb1ba905c8c4a8be9f09c02e6f0befa4ef0bc33765d819033db6e20edc1e
10. 0x81f89e3069fb48b6835de1962628cc388439a3163ac4e01f69f894aedd6239cf
11. 0xe661124afe6da658d35cc39e5dfcb10ff9056b0c88a42fc174890e77d2c26ca5
12. 0x470f6acef0d823e6f9e5fa35684563c8f27c3d338b165b457171afc3d44d4d86
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4