Evidence row 39008

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/j0hanz/filesystem-mcp"
    ]
  ],
  "name": "Filesystem MCP",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-24T16:23:32.440425Z",
        "status": "active",
        "statusChangedAt": "2026-10-24T16:23:32.440425Z",
        "updatedAt": "2026-10-24T16:23:32.440425Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Filesystem MCP server for AI assistants.",
      "name": "io.github.j0hanz/filesystem-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Allowed directories; ':'-separated on Unix, ';'-separated on Windows. Alternative to positional arguments.",
              "format": "string",
              "name": "FS_ALLOWED_DIRS"
            }
          ],
          "identifier": "@j0hanz/filesystem-mcp",
          "packageArguments": [
            {
              "description": "Directory path the server is allowed to access. Repeat for multiple directories.",
              "format": "filepath",
              "isRepeated": true,
              "type": "positional",
              "valueHint": "allowed_directory"
            },
            {
              "description": "Allow the current working directory as an additional access root.",
              "format": "boolean",
              "name": "--allow-cwd",
              "type": "named"
            },
            {
              "description": "Disable all write, edit, move, and delete tools.",
              "format": "boolean",
              "name": "--read-only",
              "type": "named"
            }
          ],
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "2.11.0"
        },
        {
          "environmentVariables": [
            {
              "description": "Allowed directories inside the container, ':'-separated. Alternative to positional arguments.",
              "format": "string",
              "name": "FS_ALLOWED_DIRS"
            }
          ],
          "identifier": "ghcr.io/j0hanz/filesystem-mcp:2.11.0",
          "packageArguments": [
            {
              "default": "/workspace",
              "description": "Container path of the mounted directory.",
              "isRequired": true,
              "type": "positional",
              "valueHint": "/workspace"
            }
          ],
          "registryType": "oci",
          "runtimeArguments": [
            {
              "description": "Keep stdin open for stdio transport.",
              "format": "boolean",
              "isRequired": true,
              "name": "-i",
              "type": "named"
            },
            {
              "description": "Remove the container on exit.",
              "format": "boolean",
              "isRequired": true,
              "name": "--rm",
              "type": "named"
            },
            {
              "description": "Mount the directory to expose to the server.",
              "isRepeated": true,
              "isRequired": true,
              "name": "-v",
              "type": "named",
              "value": "{host_dir}:/workspace:ro",
              "variables": {
                "host_dir": {
                  "description": "Host directory path to expose to the server.",
                  "format": "filepath",
                  "isRequired": true
                }
              }
            }
          ],
          "runtimeHint": "docker",
          "transport": {
            "type": "stdio"
          }
        }
      ],
      "repository": {
        "id": "1115057681",
        "source": "github",
        "url": "https://github.com/j0hanz/filesystem-mcp"
      },
      "title": "Filesystem MCP",
      "version": "2.11.0",
      "websiteUrl": "https://github.com/j0hanz/filesystem-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Filesystem MCP server for AI assistants."
}

What the leaf hashes

{"body":"852bf3c945126db5accaed5913e147fd61565711a3b0f1abcd8eb7d42aa31084","id":39008,"kind":"listing","method":"baseline/1","observed_us":1793025394370199,"prev":null,"subject":"mcp_registry:io.github.j0hanz/filesystem-mcp","subject_kind":"source_record"}

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. 0xfc9d9dbebdd85e587b80a721dd101df25f51f1be142ed490ddfb9ed5492a4c9d
2. 0xe1cc519c44772cee1722463c402cdd36928d6f66d6aae85a29bbd9a066dcaaa3
3. 0xd4ef6f3bfb9d9e5eda244890d6c9cd4ba0651d67c9c7ede54d3e695b28829215
4. 0x78ac020d888952607870c232d953d832079c1f09224688fe1da73dd8a5f0a30b
5. 0x9a959757e8379995aedb3a2cc1cd1bb817c1d79daf2f9638007fb69a3952cd2e
6. 0x0b90ff3f858517f23eecef13eff3bf94737c6bc537ab81cb959186715ea53a20
7. 0xcd3d9432e205e1b92bc234928ebaafc32bf201421788a5b66ae6ab13fa7392f2
8. 0xe397e78dd5cbd0c77cecdaaa7f143b4ca81a041c1f5f68d886ba299781056dc3
9. 0x136ba120fe1689e63adfe97318f101db112c5f8bc417737f0dd8694087327526
10. 0x3a8d3d4169cff276684d88a4f127811b670ead57557bd0903bd3af277772b2c1
11. 0x51bc8fcd224b36d2c60fa49f46f383ee8328191b9e73209ce8018f2612c3d42f
12. 0xf8173f36b7a27e1bb0f6961a49501bba1d99349c5e11449d0d557fbaa910be0a
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae