Evidence row 1051652

What was observed

{
  "endpoints": [
    [
      "web",
      "https://docs.browserless.io/mcp/browserless-mcp-server/setup"
    ],
    [
      "mcp",
      "https://mcp.browserless.io/mcp"
    ]
  ],
  "name": "Browserless",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T18:35:46.47564Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T18:35:46.47564Z",
        "updatedAt": "2026-10-29T18:35:46.47564Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Official Browserless MCP server: browser automation, scraping, screenshots and PDFs for AI agents.",
      "name": "io.browserless/mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Your Browserless API token",
              "isRequired": true,
              "isSecret": true,
              "name": "BROWSERLESS_TOKEN"
            },
            {
              "default": "https://production-sfo.browserless.io",
              "description": "Browserless API endpoint (regional or self-hosted)",
              "name": "BROWSERLESS_API_URL"
            }
          ],
          "identifier": "@browserless.io/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "1.42.0"
        }
      ],
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer token for your Browserless API key (Bearer <token>). Optional: the hosted server also supports OAuth sign-in.",
              "isSecret": true,
              "name": "Authorization"
            },
            {
              "description": "Regional Browserless endpoint, e.g. https://production-lon.browserless.io. Defaults to San Francisco.",
              "name": "x-browserless-api-url"
            }
          ],
          "type": "streamable-http",
          "url": "https://mcp.browserless.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/browserless/browserless-mcp"
      },
      "title": "Browserless",
      "version": "1.42.0",
      "websiteUrl": "https://docs.browserless.io/mcp/browserless-mcp-server/setup"
    }
  },
  "source": "mcp_registry",
  "summary": "Official Browserless MCP server: browser automation, scraping, screenshots and PDFs for AI agents."
}

What the leaf hashes

{"body":"70c85452487c73bd587a6e7a786e9e2f10afa11350990883528055754011fde6","id":1051652,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793301225667676,"prev":783734,"subject":"mcp_registry:io.browserless/mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xdfd1377eeafc53471434008cafb0880b517ec3d0c6aefa253329ae812e9b4f0d
2. 0x6473703c929e45e36b38fa70712b47948623cbbe18444ef3c5357aabb49c4026
3. 0xf63dcbf8d12da0fdc1cb5032f5e79e7ce18866363bd3b015af95d09295ad687f
4. 0x081112b74af8060ae3ed8d42186fd9e3f6209dad1f0a072b1d89fd599f2e893d
5. 0x7bd509d42d1bc3aae8716380f536d99071d84c6388604b4316aca662969f96cb
6. 0x538b038a82d68402141ca184dc590283df1559107a7845178869b54c172aede7
7. 0x250170f92935fd2da1e062f13840ac3c3b89267fc1988f77f66804b8fbe388e7
8. 0x94d3a25887fd495cf99376bb0f93e358a4221f167eaf255b26b4940716729501
9. 0xe7c9a0fb388bcc520e7cfa50cdab4194b107c22ce9d7804a7bcbec291a9609e7
10. 0x4ce6c975b8e43724b0990c59ae8acce868d51db7a0f438c95a257358ed05a115
11. 0x17888067c344707222a1a35c7975de2c75848c487d3756a917c9a45f255c01a9
12. 0x0a1e9d152c6b62d40c58741a87f85f3868a66ce64462c44c61e6461da548462a
13. 0x064aad02bfe6e55281a4da30da2a91a289f618df1d6a346db244682ddd6c8d93
14. 0xb75e183026f9112474e3710d846b63188d3bba750c3ad3feabd9a22ee7d080fc
15. 0xa7d3fa0a08edea990614977b51a6b3289c357a88d8ca06dcbfe67415a017c0e7
16. 0xa034ebc8d117fbf1ed466b70baa0478bf213b743e1a41cba1d2da7a9f310184d
17. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1