Evidence row 1482275

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": "2026-10-31T10:53:02.727936Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:53:02.727936Z",
        "updatedAt": "2026-10-31T10:53:02.727936Z"
      }
    },
    "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": "1.30.0",
      "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":"da1b837734f6847b9624f5a4d310ce3f06f1d01f7e49cac6a69d1ed8813d2b8e","id":1482275,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445365509805,"prev":1257866,"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 2026-10-31 (246033 rows).

1. 0xc886dd025b0ac5596981b8621d738b477bd006091570349b3a35b3f93f377d48
2. 0x22644d07c2e8b1044fedb87031b0eff3df8779308e62ff600da540fb0f7016d1
3. 0xbb395357cc6b0fd44965bc5a60504ecf2bd47be62c90bde990294ce0e310d771
4. 0xd8640c101a5993e42b23505c526d457b863ac016307fb5a3db47b56b5ba0c362
5. 0x6fb864316cb85d8a20726bbbbc6ab36d3510477309aec5250e8b468238db970d
6. 0x843e877db79196c20092c455d85a5d7317eb4ff8f2253baf8fe508bb907bebae
7. 0x435a87e8f56730f6334dfc7de4ce0d46ca7d6e3b0babd71526d1f01c5159eda3
8. 0xa1b2a3745120c97fd133df9f980e9d9febeffb06ce1dcc259a9c8eae15d5f535
9. 0x8f076686c7708383d821228cdfe98d434f7f1eb0c5d68dae87c0415a9566fb66
10. 0xe7dda78532826d38a3e393a2f473c483c3e99260b349a88e91b4e86734412116
11. 0xd3de25f3e92827ad7894c73114e7d63ec4d19c6cf7f062e31cf4654976243ee0
12. 0x9848da3b6eec1297925b29887f5848a0e34a120f4f695768d01669f03318e24c
13. 0xe0d6e3ecef4b18411e0b397b43270df35fb812a3310b2887db923fb26c7ba65e
14. 0x9b9c034ab0236a2e232e78d82d298819198dd0da36f638cae5260bb378f14798
15. 0xdd44ee37f508e0be8213cd488d246afd8e10e6e73374cc6074077c37270cda1e
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0