Evidence row 2546400

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": "2026-11-03T07:15:50.595914Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T07:15:50.595914Z",
        "updatedAt": "2026-11-03T07:15:50.595914Z"
      }
    },
    "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": "1.1.1",
      "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":"67708e4d6160062c2a738e6bb8a3034e1cc049f6a761f431d020791fd737078d","id":2546400,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793690346548092,"prev":2130170,"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 2026-11-03 (425475 rows).

1. 0xa3b94c0e5bb712628606317f314798373bcf5372b39a91e358419f31d9f4c48f
2. 0xc185d9d43aae6494728a981bbb1c492231cdf4ef9a3564a3dbe6c07fed0e8220
3. 0x4185072cd281454f2a4d8bb3268062e1d8fde5baed4081e284615d2bb0070a54
4. 0x4ea5a09c3a80b602b954af3ef6f0e558defe6a314159e407003e1b59379aca8b
5. 0x85d3b5fc0ee18cf1f090d0520139b06de8ff081c24530e6b26131a1346e4e0be
6. 0xf81bf20dcf9b06db8607cc945f41f10350e3e1774589dbb5174abf06d6c4f594
7. 0x73c73aa0ce46c795ea42b8b607a314fb848e5dbb604cd4fcaef57b086148fe90
8. 0x7c8b9e796dba3a3cc4bf2b303d94ee7234b513943be914dd9bb6636c2b0d2dd1
9. 0x4b18681ef5e0c1038ce67f4be0f34f244bee800142da2396fd721002236ec859
10. 0xd1eed7d96a5c1a93fe7bc3bd31b1bd0126c95e7e3f67792782c3586ae82ffbf9
11. 0xf96fcaf7f9d631f4eacf95e2f8286c35290c56aaa41b6ebf28f8967efead4dc1
12. 0xdfffb07f2f4d89112330db9f14a6b111c30c84b8474156342dfd90ee881782f6
13. 0x4a1cdf8df291c42c3836d20616c28a2918fc49d8bf96290524d03f4f1ec0312e
14. 0xc11e64de1e3489c6f039a4438e19d61260cc35d128740205319e373cf66438a1
15. 0xc8c3351be4f517ca5732d6f5ee3d1d64170b8e4410d31b9c614949031fbc07a0
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7