Evidence row 2564992

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://updown-io.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/updown-io/"
    ]
  ],
  "name": "updown.io MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-03T09:54:11.481248Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:54:11.481248Z",
        "updatedAt": "2026-11-03T09:54:11.481248Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Check updown.io uptime checks, downtimes, response metrics and status pages, and create checks.",
      "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/updown-io",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://updown-io.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/updown-io",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "updown.io MCP by usefulapi",
      "version": "1.35.0",
      "websiteUrl": "https://usefulapi.io/updown-io/"
    }
  },
  "source": "mcp_registry",
  "summary": "Check updown.io uptime checks, downtimes, response metrics and status pages, and create checks."
}

What the leaf hashes

{"body":"385f4fd878d7c794d4035b96f69cd0263634cfd8d91c4769fccbfa9df9657b44","id":2564992,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701164103891,"prev":2546888,"subject":"mcp_registry:io.usefulapi/updown-io","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. 0x7dd8d61794918f06e56d22483c6035f29cd92597677b0cbc44b6641b206f7381
2. 0xa5f52fc04942ecf42fad2ec1d6aa2fa3335930d517c564f1e490c74b9d73b91d
3. 0x6f9d9db18c38c83d9a472870731266b247c00bc95446377d2967adb31aa9e16d
4. 0x3901895dc81ae51b075541203afad4d18bcbd05b89c917765332870e1302bc90
5. 0xd0e8ec3528d107bce1445afc348c0430b5597941c4ca0eed7f4f11ac76e508c4
6. 0x24b095b74a5df7fc92c20b6c4f4e13a1b975291d6856a29b522f410a8e430007
7. 0xea9c9ececb1148f6142f3d10e45c3417a347142f641751631d478b76a238f090
8. 0x76dd8ae7860e15ce15fd9eec7396143e8386f0fb965d996a247b4912033097aa
9. 0x2069b4c310af9c7ec3c5a4cbf8bff382ba1a21f96bddf8339e681b24711d78de
10. 0x4dd1c709b2995aed0cf4d3baeaa108fc1b48f18d92fc58867ed279ed2185752a
11. 0x382c705e7bb457472016df6d183c97b374e4b68845a65704d0acb4a93931bdc0
12. 0x930eab3f039c2992e8821910301a1630ca2633c67e5c9e31c301963fd4e0bc33
13. 0xaf97729427bcb69cea84940a4617a9276209a9bb29e6047d69c9fa290978dcad
14. 0xcd70da55bc68640bf37c238eb2dcd35a729f3a58d333a753be62a2aef7873850
15. 0x273fa0d1dba912fbac313286feadbb113b263290d047849b0ea460936942f2af
16. 0x4f4b24a0a0ca0387085210387f5358e81c7f788419e50cf11713524585340a3c
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7