Evidence row 297094

What was observed

{
  "endpoints": [
    [
      "web",
      "https://webperf-snippets.net/"
    ]
  ],
  "name": "WebPerf Snippets",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T21:59:25.01135Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T21:59:25.01135Z",
        "updatedAt": "2026-10-26T21:59:25.01135Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Measure Core Web Vitals and debug web performance with 56 snippets in a headless Chromium",
      "name": "io.github.nucliweb/webperf-snippets",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Chrome UX Report API key for the field data of get_crux; the other tools work without it",
              "format": "string",
              "isSecret": true,
              "name": "CRUX_API_KEY"
            }
          ],
          "identifier": "webperf-snippets",
          "packageArguments": [
            {
              "type": "positional",
              "value": "mcp"
            }
          ],
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.6.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "cli",
        "url": "https://github.com/nucliweb/webperf-snippets"
      },
      "title": "WebPerf Snippets",
      "version": "1.6.0",
      "websiteUrl": "https://webperf-snippets.net"
    }
  },
  "source": "mcp_registry",
  "summary": "Measure Core Web Vitals and debug web performance with 56 snippets in a headless Chromium"
}

What the leaf hashes

{"body":"9cee3e7ffc7370f30512b14262c7598fb606ce1833b8edf9960bf6046d8fffdb","id":297094,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793052160774859,"prev":44947,"subject":"mcp_registry:io.github.nucliweb/webperf-snippets","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. 0x5f3f98df0e7e85447211cf7d2e30e8e6e57f937cd0e8ee8141cec2382f311986
2. 0x44eb1c5f432f768029e94b0f961641784b2f6b995d5fa6bd10cd9d42fd0436f9
3. 0x65524a92fd5a0086301f9a4306e44be12727e5b5a679eeb8af412cff77d8abd7
4. 0x4eed14ca43ff2a28a4386c408efec5aa012003f3b16d4c1a81c3112d1701a361
5. 0xea58f1ab029f1cb5eb5c709f7be50f73eb4178af6d0a436148196ec50df89a8b
6. 0xf618f1cb6128d30f0096e1e1d526670c17fd9eab331fecd00b6f13c3bbe93125
7. 0x4698c243f0db15575f755d2ddaceede456518787a1847f4959f9d2253ce92648
8. 0x4fc3a82b7dc22eca935dd67f54c7c8ce62ea5e061793584e8cf837d9bd5e7ccd
9. 0x0537021a35b724245e93c8c89b7afb8ffd636f6f46420be1b20847cacdce8999
10. 0x8fd0567340f23f69262de3ad393f18f08862b59e5cd7e78982ea4d654e90d98b
11. 0x8088b42b1c11cbc36b44c4b08d0759628b035caa2738251cd28ed0e7242e65bc
12. 0x5ab25c2fdf4695beeefb0726a5fc73e189b68f8d9fb2a3f6321ff7223b166fdd
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae