Evidence row 3987152

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://spyfu.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/spyfu/"
    ]
  ],
  "name": "SpyFu MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T21:56:41.287892Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:41.287892Z",
        "updatedAt": "2026-11-07T21:56:41.287892Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read domain stats, competitors, keywords, rankings and ad history in SpyFu.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/spyfu",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://spyfu.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/spyfu",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "SpyFu MCP by usefulapi",
      "version": "1.3.5",
      "websiteUrl": "https://usefulapi.io/spyfu/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read domain stats, competitors, keywords, rankings and ad history in SpyFu."
}

What the leaf hashes

{"body":"814e6af5c05a0fa1b007e95d8812fb2cd6909922ba846fe3c21fdcc913552275","id":3987152,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090328048906,"prev":3958375,"subject":"mcp_registry:io.usefulapi/spyfu","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x5c5e05a667eb1b5458180bf75c63123a1d9a5c9051e451828a679e26ad0efdf4
2. 0x055c902ba77274f87c7f94a1e774a343ad909efb77102f1404f3aba5a43cb5c0
3. 0x9529311674edf81c441b125d262832a91e4851928837de6b442f37062321232e
4. 0x7c12172317833d25e2e67282d8f7a7bfdbaf24581143ae65d3209755aaed44ea
5. 0x1e2d02a61f0ff636ad0d10faad28a14c78b754a7c78855bae8a4eb3824570d41
6. 0x6ccaabb367f786d6899453b78c3c982735e217dd1e2a940e84f7b24444e74e1c
7. 0x3924dffaea8ae07e7ee3345d9177b3da771a5b758368c5f779b51d54465cce01
8. 0x61cd5fef1b598e8670329558f7f7a4ee7adaf866678b14f2312e3c6d806bcad0
9. 0x614cf99533673a17eccf43c3873355ff9721143091d496a5badb2f0c661fb2af
10. 0x275f83044d7ce01888e69751b07c4554c8087a42eb9ab0d3df21ed635d5250a6
11. 0x76f746495a3a62a483e5dc37e37fa7c3915f38bc2d6e3e03b9ac79e225f09cf8
12. 0xc993339f8da646bed2fb3665c7056505de1e2b657f02d07dc7418ad49e7357eb
13. 0x610cfeaa2eca7ae44f051846531f815573ef1030804869a7ed428105b6b78f81
14. 0x712cc609388442c0171a13fe8c2149c1d02ab5643adc1ab035eb3abf53adbae9
15. 0x9127f3a0ab829dab5d80217ddc8d077053e20f2e260baed043c8a97478ebb2bf
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa