Evidence row 506063

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": "2026-10-27T14:43:54.595701Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T14:43:54.595701Z",
        "updatedAt": "2026-10-27T14:43:54.595701Z"
      }
    },
    "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": "1.40.1"
        }
      ],
      "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": "1.40.1",
      "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":"e906a48a472d27dce1d204045eb50f8780add83b4142c080e7f76afd16419e71","id":506063,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793114942983626,"prev":277665,"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 2026-10-27 (273461 rows).

1. 0x61788433e291a8ce2a1cd8a506a53d1a4e0371de864c87bc5effb5f640062aa9
2. 0x86160fbcb3d9eadc6789a0364be62a7bfb086426b9c69e42912e3d5666f98883
3. 0x4bea4b05a7fa035fd96613fd8cb0afbeb760d81215d1fa1d440fe8ad24c072b4
4. 0x07d60fd7a93ac50902a4c42d2d53bd982839230712d9189684ac068f5e48081a
5. 0x5ee053a56b9bb958a6176f24b1865a3261a52835beb4acdbf49ec1877d628d8b
6. 0x2a5493d97e2d2ce3d1220f1f73a156ff9d6b3c403de74990210566e9b158b434
7. 0x905dfce6529a11f39f5ed7d8b746969e956f2974815c92896a97ef599b0a8158
8. 0xec6a3c61d294ef376d1599dab0f947b2252010ec8f8ed8c42c7de2b975c51589
9. 0x9d60b3d108461500c73c98b1e7126789d235f8b69bab2c247c103b3bbe7f5b93
10. 0xb8dca56c4c23574ede757cf5e83ed44a235623a9856f6e3fa8ac143787acedb6
11. 0xa81a051dde23e51110ae9919545b7ebf678423a44796b6dd73cba5f3e8134f16
12. 0x4fbbcb97bbe92a4202db4cfe9ed5ce98ec76cb76473d9a37a3775c708528409e
13. 0x38f17e73d675dd35d0dd4a9f0ebd22a3333bcd28f96e42d5dd126e08211ffc4a
14. 0x4277e02be0b5d91d78bc2247e37d402572474ba896c2e8f45765c8dc4e244d36
15. 0x6f00f0da417f4126951ba8ba9b7962c847e91f5c61364ad9ad47e5f979698a60
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4