Evidence row 3986726

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://eventone.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/eventone/"
    ]
  ],
  "name": "eventOne MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T21:56:12.410857Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:12.410857Z",
        "updatedAt": "2026-11-07T21:56:12.410857Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read events, programmes, speakers, registration orders, tickets and attendance in eventOne.",
      "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/eventone",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://eventone.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/eventone",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "eventOne MCP by usefulapi",
      "version": "1.3.5",
      "websiteUrl": "https://usefulapi.io/eventone/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read events, programmes, speakers, registration orders, tickets and attendance in eventOne."
}

What the leaf hashes

{"body":"3c6a09ea6e5924a6119d945e33713fb0cca43ef51fa150ad7200ad8fcf14a28a","id":3986726,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090324979595,"prev":3957962,"subject":"mcp_registry:io.usefulapi/eventone","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. 0x871af8f0df991f901e9e4a6833ff5acfa78abf6e0bf6fe76f53162df713b30c6
2. 0x048033bce142a5b330c6776c65a51ce23b240c97a762c50a0b6d600f10e0e08a
3. 0x8c4924b530396513635c22c75c4b37aecf928d6b61d9bd2bcb28efb768636de0
4. 0x111fa68aaf58901730175fc205346401e8ea4108aebfb2bbba879f6548d1b913
5. 0x2350187882c65a87e6fd971e91b19bf2861877e3e1974d95d3f133554437c13f
6. 0x9051968054a5ddf05cc518a04161ce814408213bff0ab34e9fd0ad37d9b63601
7. 0x65aee0b89abd66e319d1f52c70d09d2aa6d5925a5af16c86f6a31a0f29127d78
8. 0xd258da9a5a6f5e06704336801bc2262d85410c1258678458ebca51e17e68c052
9. 0x7f63a60020d708cd70a007f2f6ade9d9d4a5640b1474a8192e418edf73ec4d35
10. 0xb6910776c08acad61d2d267eb5c5cb19737733c4bcfe02c32285a4d5cc565571
11. 0xd90be4d6c26cf7215d3fcab3d70cd2defb9d809636df67aafefa5c9f0d734cba
12. 0x7daa9313d40a8ed4ceb306be2ec84dc47fc90b137aee0618b5a333a9bd0f6e1c
13. 0xec49601319806ac4fb8864fe5b58c4d0e2904402b01d96fee8f1e2e36118c30f
14. 0x12c0a392774b845f910669768178b834bb75c37650d35b673c7a7e05ebd31c5b
15. 0xd41994358bb34b15f062df47abfbb736ac4887eb6ef21ce32a5d581e6ae47e6e
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa