Evidence row 2564505

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": "2026-11-03T09:55:12.250813Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:55:12.250813Z",
        "updatedAt": "2026-11-03T09:55:12.250813Z"
      }
    },
    "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": "1.2.0",
      "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":"db183c7ce565070ea3d36ec431442a1a308e8b27d6cf698717fe54b81ecfddfc","id":2564505,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701160585531,"prev":2546400,"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. 0x38c4b88253038233251ecc5f406306a6e3fd4f445b528f6a8b051b15feb96493
2. 0x461d9cc86ad03447e2e19bc326ca3191a68ce8ca4b24f321c7fd72c1993d5323
3. 0xf9362e23a78caed04717a512a233c8ab6f81f69436b19f2d336fe13dfaabd5e2
4. 0x0698380dd4c2ef89512758d0cce2df0a51d78c6528546929cf8b313bdd6fd557
5. 0xfb75a53d966834897ff711f16bd9e3ba5f764c402688d55b4c19b69c2907976a
6. 0x1f66b73a7e8ed5c6c3408910650062518826ec406ec43002e0b7ddea2d48e732
7. 0x58d64ebc470b1d30f5b11fb8139ad45f91833b4de4094b9966e7ee338b43caf2
8. 0x3de4e81bdc95ababffe7231e9756cc45423d836f49b7992406e44a1a712ca5b1
9. 0x4a2659811f558ed7d80d4ed3ac0af53d23b47bc9f3dbd3570b9e222ec2e650e5
10. 0x1e2c67dcccb57af1f62c9fd6f16ab7b8bb1446a660006f5afb7308c51f1be845
11. 0xfe90702be2b4dc29e6f3018751ac41b40b9688d02a21797c59715ea0cf4f6a19
12. 0x68b28488a5f1206d54658e4c56356c8dac4c799719ceeac59b9b83cd42375420
13. 0x9ff0540c065d2c066aa07e30d42707c88f5f7729bc3c89880661802495922729
14. 0x58aed1257fcd4ee1c84710e1858bdde1ba134c86ed73f1f35a7aeaeacd9398e4
15. 0xb1fe1f6398b7faed977bc6cc75b0a8404ef5a6cb386ca30aebdb7450b7bb6dbe
16. 0xb1804d44f1a591de3b8b8db8fe72e8ab6695e6d154862ee8ea77b6ac2b43b67d
17. 0x87df2ed9052c264d606c076742aa7e54b69fc8344b21e972ebcb19d020b7ecf3
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7