Evidence row 3957853

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://ceipal.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/ceipal/"
    ]
  ],
  "name": "Ceipal MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T18:05:20.308569Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T18:05:20.308569Z",
        "updatedAt": "2026-11-07T18:05:20.308569Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read job postings, applicants, submissions, clients, vendors, interviews and placements in Ceipal.",
      "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/ceipal",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://ceipal.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/ceipal",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Ceipal MCP by usefulapi",
      "version": "1.3.4",
      "websiteUrl": "https://usefulapi.io/ceipal/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read job postings, applicants, submissions, clients, vendors, interviews and placements in Ceipal."
}

What the leaf hashes

{"body":"defba29cbc58fca658dd927ac753d322826adababb9f1fe6a746f7e7bb2d6b16","id":3957853,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794075887305954,"prev":3944996,"subject":"mcp_registry:io.usefulapi/ceipal","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. 0x89faeab056cade8b91823b224c9fe14a855208dd4601f7f8bf479071dc42f17a
2. 0xcb612b398bc63c930a1e9bb1bbe788d962dce985222eecd1ff875bfe6b36ec2a
3. 0xdbe3d1c6987b53aa8aa7d8e7c577ad0c849258cd6a597dfaafd0cc88132ca339
4. 0x92d19c640efa485235481d95d23ee4464968d9b9c12935d68e79dec8d9d91069
5. 0xe7732257367d1c74132ca3de7b12b01d310235da0e9bf6d1acab240ca95cd090
6. 0x535c992fc86c059adf76975c39c0e77958e870bdd039acabd91126fa305a425d
7. 0x9e9d3b71f03ce6ad78ad4d78efc6a8d0bec741b61c10648397dbe2b33697a102
8. 0x2153982a438edbf962ed95a5be8f99efae6cf4aae6b90252e5ceba5e9fbbff1b
9. 0xbf168aeea03e61ac1da71039ce5a90a29981090320b9f986e4e51acca0ef1fdd
10. 0x65ddfda99429186e14eb3c3fee1dfc357865d4a7a558580eaf5b5482479682f6
11. 0x54cb09bd9f03c4545edabda168de7f8a46e29446f15b246f73b29790091152ff
12. 0x6029236289c3f232d8a52c70313dc9592ee92ad910140c5200de2b733046a006
13. 0xec49601319806ac4fb8864fe5b58c4d0e2904402b01d96fee8f1e2e36118c30f
14. 0x12c0a392774b845f910669768178b834bb75c37650d35b673c7a7e05ebd31c5b
15. 0xd41994358bb34b15f062df47abfbb736ac4887eb6ef21ce32a5d581e6ae47e6e
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa