Evidence row 3765253

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": "2026-11-06T19:36:41.601692Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T19:36:41.601692Z",
        "updatedAt": "2026-11-06T19:36:41.601692Z"
      }
    },
    "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": "1.3.1",
      "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":"f9fc0d8339af3bb14889e1413452a30bda621d0201a71c9a99fdf992600aaf49","id":3765253,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793996598642083,"prev":3723871,"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 2026-11-06 (303443 rows).

1. 0xdb2d112d92cdcbc8e967b0ee688194fb57a442698a0cf911ba2046f1f78680c1
2. 0xc139340e4631d00bda0f6069c4af67fc489c45aca62638e1e65055a4c61961b4
3. 0x9cccd76bbd7fc455fabfe6c0dc0db93f4989c3f07e1ce5af655573d8dbd69aac
4. 0x0b588c020b4a73ed99e81ac041195185fe58afbe4a1f0e9fb40c7e1af5c8f8a7
5. 0x06a0fdec9b49a5bd52f5f7b167933347911f07c55b77873d2dd247dcf41c608a
6. 0x41807b7ad0dbddfd03360792108b3e988ad229f797ef9084ed0d4513c12483f9
7. 0xf810e795ac8daa5dededfd5acdc6c4dd1817d6ea63a0723477d40a678f180fc1
8. 0x99381c12f5baa2a755dacee94e2902b37497b4a43aa99836ca3dfe25ca8db6d7
9. 0xf5dbd6cc391ead74675e8f6343f3d3f4d459a2bbf46e5d43d50216cba0d22521
10. 0xae9dc900ac9f8d7e4707c4cebf64f197e98bd9465a8426a2141516a4e53b1fba
11. 0x71c84a6260464c1b9b77658f89364441c82fde32d79c2b8bb1bd86e011854dad
12. 0xa860eaa75b4fd7afb33f487077ecdbc99bafd451dbda4a56e37168fc368a2bbe
13. 0x3d6449577690283f56908a68295b676d88a625e36d2a62a63a1fbb17661da355
14. 0xd90a2fccf1a85036b23ae580bdbabc69c97c990b1c22ec464024ea02758d60a5
15. 0x821ffa0a1fb7e66ffa8ce79fd755aa408c67dd0ef62aee573ea2278fcbd9823d
16. 0xd47209ac9b2ac71257b5162800ce4482f8cf7ea04f074033847ad335ca758d32
17. 0xf19d501fdbc28e10c3244253daf0c37c4752659eae14a7cba585a18c7df9ce0d
18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1