Evidence row 3986609

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": "2026-11-07T21:56:00.230978Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:00.230978Z",
        "updatedAt": "2026-11-07T21:56:00.230978Z"
      }
    },
    "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": "1.8.5",
      "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":"0459b2873ca87888171cbd242d58fc6704e9d24cd49ac62df9219cd0e13e6b23","id":3986609,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090324243783,"prev":3957851,"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 2026-11-07 (195826 rows).

1. 0xf222d0318d5d66f4b6330113e67452439e9126431d1e876701c908952d8ec9a6
2. 0xe18236302bb87282aa3a4de656e0e390cdfa6294009c63f6082037a94bc05203
3. 0x5883f501893a46fff246506a054d5e6034a662eca55765739133f6d8b969f39c
4. 0xa04615d0f6fd623e8c3b2ecbff489d9ac137528b165e18f8263646f2bf6038c8
5. 0x648a24790aa5e6365d9c538c69b63b4908203c993fb10bf1bc9ba0149ab8fb45
6. 0x5964acddef8ca0c5386b2e6ef78b0330021953c565e05173a9cacd8efa667843
7. 0xd2203d2f7c442b374c80cf6b64261387c7fbbf0df744905b4dfbae2dbbf09f72
8. 0x2a112b594db4ef7228b57a10336473c5d8506db7335e7760af03ae9b768dd047
9. 0x0248d3c360828d0a6f5ccf72b4f89bda4527b7d23797cd68f491cab65e13eb02
10. 0x89ee2d11732e2a2eece52eca11c4a6082d12cca4fb22ce94c3ba5fb7a3f240c4
11. 0x4ca22510127f25925d4e95786c34db9adc479ce6ff822142d619be92607ffc55
12. 0xd99d6c71053411b8c7afc5338175a504ff6384be37b22f9f40e9c554c130e65b
13. 0xbb9fa9b6d258e3bdd3a398a3707add7a5e88a5c2c78305ea2b7ea696f4cf0b12
14. 0xf43413f83ed03b7c7cf9da72bbeca9e32610d671fd1e4e2b0c0cf6b3d8b94516
15. 0xb6dc07358d0932b83c713d4c82df6764849db6e58ee1c7cbc06d03f381a6b36b
16. 0xbb3be27e5da5ccad91ce4674c6eac53275c0832f3885b89533d2be65d38f2fc6
17. 0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa