Evidence row 771637

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/mozilla/firefox-devtools-mcp"
    ]
  ],
  "name": "Firefox DevTools MCP",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T11:28:13.516915Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T11:28:13.516915Z",
        "updatedAt": "2026-10-28T11:28:13.516915Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Control and debug Firefox: navigate, fill forms, inspect network and console, profile.",
      "name": "io.github.mozilla/firefox-devtools-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Set to true to run Firefox without a visible window.",
              "format": "boolean",
              "name": "FIREFOX_HEADLESS"
            },
            {
              "description": "URL to open when the server starts.",
              "format": "string",
              "name": "START_URL"
            }
          ],
          "identifier": "@mozilla/firefox-devtools-mcp",
          "packageArguments": [
            {
              "choices": [
                "slim",
                "basic",
                "developer"
              ],
              "default": "developer",
              "description": "Tool modules to expose. Higher presets widen what the agent can do.",
              "format": "string",
              "name": "--tool-preset",
              "type": "named"
            }
          ],
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.10.7"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/mozilla/firefox-devtools-mcp"
      },
      "title": "Firefox DevTools MCP",
      "version": "0.10.7",
      "websiteUrl": "https://github.com/mozilla/firefox-devtools-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Control and debug Firefox: navigate, fill forms, inspect network and console, profile."
}

What the leaf hashes

{"body":"b596656f4c9de8e63696003bc4de4a56b22f157e90b24b6e2a09b1723662e16e","id":771637,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793189453390408,"prev":43284,"subject":"mcp_registry:io.github.mozilla/firefox-devtools-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0xef1a8f4f30633acf0e5ffbc0aec0447df6169aa3aa4d7a5deab77558528b97e7
2. 0x5ee56aedd6a7eae39ff5f6dea0ece9442b1e50682f75fa5a1b1dda6374a1d28a
3. 0x9f94e0b3b2ed4eb3bc1c355dfe2dbbf3c06ba198cecf8f113da94d995cd9b15b
4. 0x6954fc670553cba5277e02d0c97860ed5d4d82ef0387897e7a464ee650c170fe
5. 0x8b057092a32a0670259e1f110be7e550ed5b50fd99c550986f3d833c9e9172fd
6. 0x552a2c4a2422be7a4634aa1a39091f573d464b011944ae92e1df1975576cae9e
7. 0xf98d005c6653042c8ffb4dcd9a00d4c53b60c795dded3d696f54542c771bda4a
8. 0xd2863c341b3bae5cf353c0e9c66d1765ea08bb0db108a0119784cd25bf4ad759
9. 0x6c618b9dbf72b61eece30f48e024cdf098b198f73c68811723b577f5f74cc565
10. 0xc9d71f1c877c5caa27a09ef6afed23a0d08727d25ecb75fc16ac0a577adc3ec6
11. 0xe2b694cd210ad43c1eba274309908cc1d47fbf23f118e26484faac76b0f862e9
12. 0x20179cde505821813c2d635df6658dedf9c5dac9aa60296802366454e3b0de3b
13. 0x7c7680a693651307890c3f1e37c63eee03c1c637cfe36c210695030d5edb22bc
14. 0xfb2274fa79452c1e494276a3ee3eadb7c66f76a08a80f6923416f3d591053e02
15. 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
16. 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
17. 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae