Evidence row 3945109

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://eventone.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/eventone/"
    ]
  ],
  "name": "eventOne MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T09:18:10.134072Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:18:10.134072Z",
        "updatedAt": "2026-11-07T09:18:10.134072Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read events, programmes, speakers, registration orders, tickets and attendance in eventOne.",
      "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/eventone",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://eventone.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/eventone",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "eventOne MCP by usefulapi",
      "version": "1.3.3",
      "websiteUrl": "https://usefulapi.io/eventone/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read events, programmes, speakers, registration orders, tickets and attendance in eventOne."
}

What the leaf hashes

{"body":"b5739eb9205a85ec146a58b28c061e65d36c5495e5838688fdba9a4340aea75c","id":3945109,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043454944295,"prev":3775129,"subject":"mcp_registry:io.usefulapi/eventone","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. 0x72f085fe7a29cfcbee13f0fde5b9fcdba4b74798e1561c2dfaa70279b0c60a3b
2. 0xeff03ab558517c47d3c1dcf1449c4a730d0bee81d2e3157734998bc4c0bbcffb
3. 0x324b748ea1560bc03bf0070034ec2be129c7b35e1f40a4bf2a08034d67ac4c72
4. 0xa3d75084ea6251ad1b176ebd18b4c4138a9fb57159ae8a7d50ac5c27ebf52580
5. 0xa287e1b14b632ac8d5fdc1a5755d7e984492bcfed7fb4d82bae7312a37e2d624
6. 0xf4496a1b702d97c921a1295e5e1cbbaeaa88cb810fa4f5bc6266954a0526a159
7. 0x999815966af10718452a247a731271a1f053a91a8bb276a69ea4977dcf772560
8. 0x74564ddf262f6386f3104dca1b0c09ddf10124c9c1acd622c40a9bc14622da8b
9. 0xb1f875b8da215c460723daace147f845177b32394c3a6127a748e4bd1998511e
10. 0x24a6e4ec6c472192987cf165df9fa371da1444f4789f10b99c4a33fd7eacb72f
11. 0xd5631712214d59055ab4bdd3bf3aac265e4a1ad908749017e0d3319e2069cad4
12. 0xb9917c5b67af23fc2d1b355e6fb9b15fb1e8a08466d2655c3204677864e6df2b
13. 0x7d1dd5bb14b5375b9f1486e172c5a59a72474b2313d43fda1b9b089df406ebbe
14. 0xe10968763bf5f376ed7bef52309abc0adc0394947582477a2899a3f332842d95
15. 0xdda41bf8f8b807884588170276b0203d24918e4a5c47ba7f4d5d0217f85e0cf7
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa