Evidence row 2546289

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": "2026-11-03T07:15:49.204452Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T07:15:49.204452Z",
        "updatedAt": "2026-11-03T07:15:49.204452Z"
      }
    },
    "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": "1.6.1",
      "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":"f5c9c70885aaaa08d51d6e7cdd2acda9e0da9e3a5fc4c7bf52fa8eab975e00f1","id":2546289,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793690345147810,"prev":2130064,"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 2026-11-03 (425475 rows).

1. 0x7368fb0528d1d93bc052e8982f610aebd467136b9ee8d792e0a937dea1cf4d28
2. 0xcde252dd8ac75fab3f20f0698ca4ad25d66ee0ee08296292b2661d2f7047d431
3. 0xdd0489fd5d633a02fb6d09c04a0faaed16836cc4865cf3ece9928d4484830e15
4. 0xd0de4375275d2f63e1e82fd9e18621d7cc556cb965facfba6bed009a5a376bab
5. 0x6b16c0cf7ba4640eb60de96ebbe6e338edbd20cc3d56afdcaaee88c45d5eb11a
6. 0x8226d9225e0cdc339b37f18b14edeffc33a978c4518a134b4a2ed11d914ee108
7. 0x24220909b3a1a340acd45b99f05cb179e58e13b7da2195e79ea811a9cf68f943
8. 0x66dc9199a8569670c7bd5fb662988708087c455af7ec00fde0b0ed84baf4a22c
9. 0x3537c8f9bbdcd0dfb3e90933369cb6f11d032580fb9bc215e29a5f2665d1132c
10. 0x97b88c4cd82e8ffbc7b67d3cbfe45829f3cf1c418f9f00c9e05a98555b66ed0d
11. 0x41c195782cd43d4c38c1bb968bdbe3b106813122c273f8b621fcf16d52e0f326
12. 0xa74b84d5b52898537a474fe92b8dc6e935e836e61482e2ca9473db11202e5b03
13. 0x892eb4fc237b63aa9cb555db156e93417ecefd6e971d8aae4d777eefb8211946
14. 0x8888e0d25075a71372832a4a34d226613212be78f7f52e7bc201b28be0cf3c7b
15. 0x1be647e954f61ace2ed9636ef78e1986bb535c60f6f7e9d512f4249f9507bb36
16. 0x4f2735e4d41cb2a5d48f6769cc066ea1066bbcd0623dd42fe7bc81e54092cd64
17. 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7