Evidence row 1828808

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://kantata.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/kantata/"
    ]
  ],
  "name": "Kantata MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T20:25:54.851293Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T20:25:54.851293Z",
        "updatedAt": "2026-11-01T20:25:54.851293Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read workspaces, tasks and time entries, create and update tasks, and log time in Kantata.",
      "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/kantata",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://kantata.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/kantata",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Kantata MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/kantata/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read workspaces, tasks and time entries, create and update tasks, and log time in Kantata."
}

What the leaf hashes

{"body":"da710d22ba6109e5f4b7b427d8d771df1f6c7b789bd16c0618202f4eb04ac477","id":1828808,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793567869203065,"prev":null,"subject":"mcp_registry:io.usefulapi/kantata","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. 0x5267af6758f836180dd6f17f8988e598ceaf62edac0590569c335a296365f627
2. 0xd27f16d4661427d588be98cfe687bdd069f793b43665da0d59f0cc94fbde61bd
3. 0xb8327a5854d3a932c025774a990c714bf5252e3a6e7e5977449a17c8450ce06b
4. 0xb71a4287f7b528cc3f001b8c9f095c184335f6971714862ded81e544045bf1b8
5. 0x6784390cdd84e63b4ebef5b524fed296ec57d3070e2ae28db02859263efd95d4
6. 0x8919e3bc61e0bd6572245c1b5896ac1e6d2c4796057bfde5f66f6cade4a254e1
7. 0x5b7cc00a039c7cd18754ad822fdb1ab3232fde10281ad2926006d5056abf4377
8. 0x8e75b6a550d31c019adf721118197427d2d7b32bfdee0d1f498357409c7805c3
9. 0xae3d8f7f24288aba81262cdbdb4f2c615bd8a199eb0f46cf02abfdc24f156ed3
10. 0x58b9ceb286b706c787c76b28d296e239044a77d88e420d764cdf9a7915670f2e
11. 0xb4b5e171ae6ac69f3f0364517d0141642ed8c1d994801ca5a65c376b1e15f4a7
12. 0xd54947428effd59a8bc19fab04a804fb7f80dfbfbb84a5fc4c4a9abd0bcf4b9a
13. 0x61ea1522e2a8dd1dbb4a7f6b4b6b4e9d2d75dad9c43bbf8d014ad3d2e55a77e7
14. 0x4dd56cbe7671c2bd3ac1c5d78e38f1cd1c8a879b29f9a6a5b8a22555a3aedcd2
15. 0x0e3f78943343406ddd3828dd4ca4b5a188e80ffe3ac87d64d979448ee11c1cc5
16. 0x00ec7149eb024693951d82cb635dfa183f4f34dae011e77ba0420a38a378e0aa
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90