Evidence row 3945611

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": "2026-11-07T09:16:59.736765Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:16:59.736765Z",
        "updatedAt": "2026-11-07T09:16:59.736765Z"
      }
    },
    "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": "1.36.3",
      "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":"2a13ae4ee60f107c292fb4c26a4a3cadf7cc4827acdd2a1d4f87f06bff60b38a","id":3945611,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043459233812,"prev":3775629,"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 2026-11-07 (195826 rows).

1. 0xfa8e64d116b2654e00d6a29d378954df6500685836ddef1982faf5035664e196
2. 0x544a2550175e8ca0b8531e10ebc4210e75b58009c7ddf5027736ebce675dfc5c
3. 0x600fa18670cbdf7e27fb5c18950406175dd01de3836a4b4723c2b9cef1b5025b
4. 0xfd195a1e9d01a56b6a35bfe36cc90da0ad54b4e9a99762038053b0c475aa78ce
5. 0xc7f6d1c46d3aa7dd3159426a79fd2af2e7c9bc57390ba0330948decf4d1ee22c
6. 0x4cb1ab0b67963aab73be69bff6f8763cbf130e127f9202dba5c6397dcbba0705
7. 0x4eeffdbbdbc6b7ca9c86aa35b0b70759dd9ae318ba035534c0849b8f8ef3c4e0
8. 0xb486873fc499d6d1a226c93f59c5c84ef4d2fa0b9e7c088fda7ad4c984134576
9. 0x852a6fe2f6bda61de9f69b977571319c2c186ade2a076b5a264b716c5173babc
10. 0xa821d3bc68b82902693b7089aceb91cd46c2b9554f936544a42cd6ac80234a47
11. 0xadc70114a924c66040e1ab418216bfb1ddec6cbf342752422ff6f7b0e7feffec
12. 0xa57379a899501fe356948f0dddb2f81ac69b18d51aafe0b2d5ca83cc8eb622fc
13. 0xf890041dab1a6045b3a87d27ce06c7bb38a0ea4dc1deb01cfdbb7c23a11ad1b1
14. 0x2f1bda65dd8929924c1dad6e9e29ab36a1b8cb4eed65c97434b87bf8d5cca017
15. 0xb6dc07358d0932b83c713d4c82df6764849db6e58ee1c7cbc06d03f381a6b36b
16. 0xbb3be27e5da5ccad91ce4674c6eac53275c0832f3885b89533d2be65d38f2fc6
17. 0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa