Evidence row 1500047

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": "2026-10-31T17:15:11.2423Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:15:11.2423Z",
        "updatedAt": "2026-10-31T17:15:11.2423Z"
      }
    },
    "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": "1.3.0",
      "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":"cc031e36ecf031ea7ca2329e3a6846992d1bcbe67f4d1b210cbdf84a3d76ea5a","id":1500047,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466974049305,"prev":1481824,"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. 0xef5d00d0cc3e12957eb4179a0eb08546c89d90d503f1ec1d6c9aa7966a03dec5
2. 0x37aa4a24f78b733d80fe0f679358b4b6cec746fbfccbdac032c48e88da5e9062
3. 0x43d2d43a998b369ab3aa23503650d183904836fc74497bc2a7da8c95ac4ab264
4. 0x60bda8008eb5013376fa646a6a8caac975abac7641fd46e0241040c98ce3bc3f
5. 0x6d468859214bc20c1d6902a34f599482962664fcc7e66895dd0612434a8b5406
6. 0xa6b535b44e8597bd76fa14852cca20999ca392c12bb93210479a610bb1f69486
7. 0xb26bb57396fe734937cd53c4d129a6e666836eef421a4aedd428e0017e605cce
8. 0x83e7d4c42fd1eeefd8a682b4e0f37826c58fb4ec0da25a81d567aefe45e996c9
9. 0x011646dada1829b0646b139f887db06d1115babf0a758e52fcbc52b77dc7b623
10. 0x76d2333cfdcfabe25ffc60994b16f502912009649d959f1a9b910d6f80002592
11. 0x171eb718698117276cfc5ba683b8b10eab0adc766e50b4d9124b588b43011d11
12. 0x58a34939b4c8e722f8158244e479f5a4c90cb23cd7d81af7f52ef740f26522b2
13. 0xbc3e5daeb8c4525fe47bcc0da1546eab6297e135ec75acdf3bc8177600a63e27
14. 0xb9926eb0976a5b473833dada1e63c048bf8ef05dbd747135d29c85140274baf8
15. 0xe9e97d8cdaf19b6da06606a22b4eea548063df6bacb661abea4c37aa637b5c3b
16. 0x4befbbd74452b2a3a89b7e1e809ba011f1be78aeb8153059503fda47c454d086
17. 0xa1146af524f673843507e7427a575964580eef01bc0e0eae466a7920df017ab2
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0