Evidence row 1783681

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://demio.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/demio/"
    ]
  ],
  "name": "Demio MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T17:22:45.785935Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T17:22:45.785935Z",
        "updatedAt": "2026-11-01T17:22:45.785935Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read webinars, sessions and participants, and register attendees for a webinar in Demio.",
      "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/demio",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://demio.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/demio",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Demio MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/demio/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read webinars, sessions and participants, and register attendees for a webinar in Demio."
}

What the leaf hashes

{"body":"18d0e45956be5b08e7ef810451675cc909f2715967bc4e87dadfde0c994b5bf4","id":1783681,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793557062649272,"prev":null,"subject":"mcp_registry:io.usefulapi/demio","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x2216dbd93155d8f0857b830e2f7f8e651b542d7baf6a3360f0011c857a96fa67
2. 0xf60de2dc607f76c2b05c7dbf111467824ba2c3cdae403387abb17a311191d453
3. 0x5e69e8fecd336385cd93c15fbb6c9bc1363db9a1892a134e10306b6f2120989c
4. 0x4301596ac28eb0c6a374dca70ed4deed718ef4f34b1912c2dd1380d1bef7bafb
5. 0xd6310b468b12602226209a74fba1f5e9019cbef947bd229cfd9d178c38fdc89d
6. 0xfe91e59d4a37a85fbf21b7ed3c7282e7f6ea07e20ed0f38315e53aebed5aeb6e
7. 0xe90748f6504b2b4e6ce45f0a39d1be2863d15482d36c6bd6253c71a7ba06f9d9
8. 0xa1f1cdcbbdd15f9c5233d71f3e3ca7f61853533245dfb093da9ce13b38cf5790
9. 0x313cdfebea0b58f69c121a3c703e239063670b2492ca43bfdcfe90624edea570
10. 0x0a738da3f49f39f1ed0d89e939e0ac82f68342761d75f39849be2d597ce28680
11. 0xf99b4db0dfbd66a16105c00143cf875ab0172bb5f78d59a41a5aa4488644c5c2
12. 0x3d8872b2c188ab107cca2a55e8d91df7ee5b37cb2a08d882178f84b48f381da2
13. 0xd962e1b3842b353598d79ca5fe0b84b02369d05fe8f6e6103d51bf4d4d1edce4
14. 0x175afd1319b72670e83bf74eef6f87ab2173061f5bacdfe981a6b0789c963022
15. 0xb9d6fdc8e6fb3f4feffa2c18849d74fc34d8708b574a778ae149241a90aaf20b
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90