Evidence row 795984

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": "2026-10-28T18:46:07.668058Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T18:46:07.668058Z",
        "updatedAt": "2026-10-28T18:46:07.668058Z"
      }
    },
    "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": "1.26.0",
      "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":"7b98de9c4226556e2da151b1322d2438bf93725bee0f968dea17816f38fd53f6","id":795984,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793214748495431,"prev":443374,"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 2026-10-28 (231336 rows).

1. 0xf6994e2203e0986c656533a713ff5856ecb10508fa1bda5db09dc542302f5559
2. 0xdbb8c05468c23ca8796fcf0944fc7b66778bdf9d446c2566afc61f6e08691528
3. 0x295f3adfb6f041cee78c9e2d84d88ff2b3bdc6af631e8efd71ab63692e11d2a9
4. 0xc9a2d14791c801f70d2ef6cdb68f129dffd0b7da34a592d6f7bffff1ae1e3a45
5. 0xbb8caf171e95dbe74dbe6449c2c278a7fba60c4bfd0306359a0f71c4d7d2d33d
6. 0x504fb1902f992fd77d28151938833c0636f076233da3c29af85cf3613a70b093
7. 0xf9d92fb432983c1e8853d0600df293015430b08fc13826c8b8cfd29b602a2afd
8. 0xf498ddfac92b4ffbaa7f4ebcd61eb9f754e468669402830459acbdf3f5802bb3
9. 0x44039d26c3822f09fd0a3d8481989db5f26c8f003a8a7c41755e8f8150ea7c27
10. 0x8ea7e236a7ceb1209d8047731f5802b855e4e3ec1282116169c743f462e6b245
11. 0xa83537bfa5c4d27bc47e032d69f85312229b4bff35b61b74feeca3129b9a6637
12. 0xb8e7df6a6a59ed16b5342f2524c05d480056f475ab0952eeb95ae1ccb12d46e5
13. 0xfbe6c6680e81a6a4d0db9bcf0c203bf347d99dfc74bb05632f41c1864103757a
14. 0xb807f07a34f6739a39ed03265a4a5a9c71ac45230c37dc44fd915cc90aa287db
15. 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
16. 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
17. 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae