Evidence row 1481824

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://cats-ats.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/cats-ats/"
    ]
  ],
  "name": "CATS MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T10:53:56.760281Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:53:56.760281Z",
        "updatedAt": "2026-10-31T10:53:56.760281Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read CATS candidates, jobs and pipelines, and make explicitly confirmed recruiting changes.",
      "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/cats-ats",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://cats-ats.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/cats-ats",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "CATS MCP by usefulapi",
      "version": "1.2.0",
      "websiteUrl": "https://usefulapi.io/cats-ats/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read CATS candidates, jobs and pipelines, and make explicitly confirmed recruiting changes."
}

What the leaf hashes

{"body":"736bad4f37b59bb3ac5a81700c78b5885cb38ea644b5c52aa0e1a92abf2345b9","id":1481824,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445357285414,"prev":1479992,"subject":"mcp_registry:io.usefulapi/cats-ats","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. 0x4bae691aa1b7d9716732dd4369e598a7798cd1bf2aa7b7550c0c1c27d5fac615
2. 0x03560d1a566bb397fed256da85396b227ea2210f764aac7d322c18cd5097c304
3. 0x752e49401cb8a5377ca056c1054b39ef39f4ac965cbb8cd1df4c113585b3cc33
4. 0x53ea5126cc16fd137774331ed9f5df51e4e311b4b6336bd3bcd11a629df32a5d
5. 0xe174a98347e530ad7bb811b9e9e17e003ececd72767a1edf03031b777e813226
6. 0x40deaf34faf886c4b3047f393884ff5ab3dc932dd8a39e208f175d876894d8be
7. 0x3f5be06493320126de6ec52ad5236f81847d5d17c85ccbab01e0c9da5f7fa3f2
8. 0x36bbace9b85afcd5540144b79212b100effd2e89f46eade07750d9ef24bf268d
9. 0xd3fe249e86f04dcd635151cca6b17b70be9dfa5dc38bfce0ba256417996d3a2f
10. 0xef089b59747297d575cea7ae0af1d1652ecca5193c16f3ab2e92d8acbcde40c9
11. 0x32aaa8a78f6103dd70a75e181918cda1aa711cbd6c2cabc0f9f5ad4cc6fc7433
12. 0x5a1b3d3b8340f3a758827aed63fed285c823bca32427c40c4687a3d153601c85
13. 0xe9c4303dc739b3a38473373ace0be2d0380fe87c373514f87ecf64e4a134918e
14. 0xc248f3640ff2a9c77f3134397896f3ef7b260859179e2912c528542dff5a29d2
15. 0x37f0ccf90cd9ba8759ef0154382593820880794592760020f095a3628e43fc3f
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0