Evidence row 2564351

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://bigmarker.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/bigmarker/"
    ]
  ],
  "name": "BigMarker MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-03T09:55:25.732194Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:55:25.732194Z",
        "updatedAt": "2026-11-03T09:55:25.732194Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read conferences, registrants, attendees and recordings; register and cancel people in BigMarker.",
      "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/bigmarker",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://bigmarker.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/bigmarker",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "BigMarker MCP by usefulapi",
      "version": "1.2.0",
      "websiteUrl": "https://usefulapi.io/bigmarker/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read conferences, registrants, attendees and recordings; register and cancel people in BigMarker."
}

What the leaf hashes

{"body":"02ab3af68d92ddd90d39d4b740247c7d1375c28cdd049e286a2a7167b628802d","id":2564351,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701158782690,"prev":2546246,"subject":"mcp_registry:io.usefulapi/bigmarker","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. 0x92a147a4f4c79ab07732abc4d08cd5b013b3ded7cfa055f566670c1703e3684a
2. 0xb4fc2f6eee34a6531c8bc6ad2a9602a504ad2be0e7e8d52eea9ecb0a1f363108
3. 0xa0ec71f88393076919fc679f876e467dec7a0a5add493ec1369ef0549f5a2c15
4. 0x278c7063b4ec40f107cbd86a1a47997aa1bd11fc056cb5bfe17ffdf97e764ef8
5. 0x682117d8de715ef4bbcc78588b311a6f49e9c63414c26fa09f0357589bdab3c6
6. 0x0ffe45051aa12afcbc96dd404e0a1f25785f8c2b65c536fe3dfbfb97ee4124b5
7. 0x12dadc6e0c2a3ad9cd4834a8d201f51a37bb8745fc5c6688c2ac1eb95c50346c
8. 0x46bbf2d498c1455d8ed503dad3040fd8ff58acff8f7f3992d43da975b8033899
9. 0x1532657db9568476b660b32c0ff0edaf585860879b947a7e970b8b332f55b9e7
10. 0x5d2b94edb40c711854e6196a80bda05eb711dfa0fa64efa0eaf6ea69ffad356e
11. 0x2203024168ed66e9d0cead5a8b4761479699f6efc108ae67402c457bf0267bba
12. 0x43f9ef9bcd0ec92b4254a0d88c38b02ba6ca51b169c3222edfc20681b456b6c0
13. 0x6040c146b0a58fb121a68788fa6a286b0f823db9b8a7ff3ddb8ad831db1c9a29
14. 0x7f1a60c8109f6f6bf295c743742bf48233a7f558ad73afd2115ffc0eb4e5400f
15. 0xb5ab3a67e92dbd6d8eb3ea95dd8fba5b750735344b87d689cb50ea92ccaeea56
16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7