Evidence row 3395809

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": "2026-11-05T11:42:11.772016Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T11:42:11.772016Z",
        "updatedAt": "2026-11-05T11:42:11.772016Z"
      }
    },
    "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": "1.7.2",
      "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":"6004aeba7d9df2006f95804b943551a882610266afbe4522a230422c8317a908","id":3395809,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793881287600837,"prev":2726248,"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 2026-11-05 (322504 rows).

1. 0xbdfd61ac04dfbdb8fa52cddc62de92848051af56896ce7bcefa1001ca6eebd76
2. 0x40def5ca7af332fea4f203b79f38d8a5dafa6d7fba2f6242f3678164f45d02c0
3. 0x026b20264537dec85db542c0cf0b25135f6eb8c828553c1690ee0709b0edda08
4. 0xfbaaeb11391720f23a0c2d5e6097fa7c78578bd0292a55b2dfc0ca9c68f0ceff
5. 0x9bc0d8ab75a6c5f514beaef5eee5550f22c2ea74c5d2a7ee6f4116a4b1eaeb3e
6. 0xb4850c33da26b764034a3af9943fa3439b9aa1ad04c29cca2ab86bd8c7a1f5d9
7. 0xceb0b9d5c8438b3daaf4717495a27eb6869d4642a2c7c2ae172d142f3f7fecbd
8. 0x70bb35b7f67967544d35898440ef18377726a06284cb755f609124490dea8abf
9. 0x4127eb7177e421773592f28d14bf13dc63cf55ce2a903dc97227e96319f18d96
10. 0xc6f5b81f9306939e4da8f03c25de80ae5ab2820b892ea0b86bdfab60b4be92e0
11. 0x76c38afa2ba8b6671f489f2505e166b5292c31a3dc0432fc9a0953e8f6dd3508
12. 0x2b7a7c95de5a1d5957570464c2bc9554af3ac52b6250d483e5b60677e39aab32
13. 0x0094125755cf4d53859179bd3542321fe895e3ac40c3c2ffe5b2c3139ea38467
14. 0x876741791494e92b6f75db13043598085795215fa5ba6b39a6d004eb9c7632fa
15. 0xbce07c8bedec3bbed9a22d7f4e8aca180f479ed562779a14791c5e82f052e9c8
16. 0x308711d37f87ac2fb79802c45aba249411861d2d093068d1718f039b506d2a02
17. 0x25f3843b1f8d3ded906cf440101c0137d8f897b0b72f946f0d5bc12c3da6b136
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94