Evidence row 1541132

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": "2026-10-31T21:45:12.156489Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:45:12.156489Z",
        "updatedAt": "2026-10-31T21:45:12.156489Z"
      }
    },
    "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": "1.5.0",
      "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":"7e1813f8d2e77b191737bb6e941b08c3c61bdef13baaf5ef31eb0d5fd0571116","id":1541132,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485021841826,"prev":1537720,"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. 0x2438bfeb408672ca15837cbe3d46f5f9cb1aa080b19145e6c14252e6f474944e
2. 0x26d8037643fc5ec4974d5dad487db7bd58b82b292b341851fe5faa3897b5e945
3. 0x33b8872a8bd631e960d979225ea6f4253f573e75389134220a807e81895b90a0
4. 0x1a38e0c0cf0b10df1172e178d594ef5d78be1de02890f35a04164081e9a903ac
5. 0xbae7941529830478aae310d3e7dd26092d247db66f52a1666c51a4857d630294
6. 0xfbb38a2557c38b5deda669281a9cb3821bce1f85dff4802cba77dfbc2e977310
7. 0x28f86958e9dc08647d7137276f2db1f78084947d3a52c8cd2a74644315e831c4
8. 0x5e9302c8f69d1e5256bd5d32e118324066a9dc1adb68f81e6bb5649978858f62
9. 0xea0656f6e309610d3bc9d66875efd2034508014e7b2ac59b9177af77e4a23d97
10. 0xb013e2eb5f81ff56171f0ab0e64574c5bce0f3a75014ccff26a2621b5e2b9d6a
11. 0x6d05988ea249d9bdf7c3d9fb320e6a61673630ebb7f8c94225aa70a52c0692e2
12. 0x2825fdfbf632f2356fba98871bc763c31e265d033d9382197173c7357fdeb5c9
13. 0x1f697283f41d2425268978efdad1b5ce0e4fee30f5bc2fba2c8f832307b40721
14. 0x4c7bf6d7d7c379b3c87447200f991359af0970fc33642e540cd6032a5a5b24f6
15. 0x5212e7c531721a66b1d21d8222c94df019d60ce8150c25bfebe2e6eb1dd39726
16. 0x24ea73817c2ff07f87a42be89aff36ac5fe49b64420a647cd406ee60e6a77f70
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0