Evidence row 1541462

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://rapidmail.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/rapidmail/"
    ]
  ],
  "name": "rapidmail MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T21:44:36.86529Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:44:36.86529Z",
        "updatedAt": "2026-10-31T21:44:36.86529Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read rapidmail lists, recipients, mailings and stats; add, update or unsubscribe one recipient.",
      "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/rapidmail",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://rapidmail.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/rapidmail",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "rapidmail MCP by usefulapi",
      "version": "1.20.0",
      "websiteUrl": "https://usefulapi.io/rapidmail/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read rapidmail lists, recipients, mailings and stats; add, update or unsubscribe one recipient."
}

What the leaf hashes

{"body":"5be8a7d2a90bd90426416d85338a1b437bf9f3ba79853f83722e9697a87e8e43","id":1541462,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485023849036,"prev":1538050,"subject":"mcp_registry:io.usefulapi/rapidmail","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. 0x3adfc9a83880f27ec02da71b9bf806405df59daf9b0c529543c99e2c4a0145ad
2. 0x5505c4a527b80db61069b159fb1acd15a62f1c9f0d08934911850838f65cd56b
3. 0x7ec577d7edca61499649cae3716d1cff7759ff4d03b315ad1133d13b3701bcd6
4. 0x98607cc041bb6e212282d678571259138d9c756dbf59ad1fea707e187d8d805d
5. 0x2817e3d30bf46cbc5c964bb69d2b303096ae4086bb208a40a5e4bc2086009b93
6. 0x336cacb2e802ff7e8d0a58c3ddf60a74055196e03b8623eb488d3d37b7e70071
7. 0xde6fc306f2b1f0043e766347faabd5c68cabf5843772540e94855ac34854b227
8. 0xabf9986f32912f6786ff283d65a88260fd7b9781221aa2fd8644cd140fd7ff40
9. 0xd261b42a25c9d7ef6a82aa14afc73fefce1ad17e0a75e4ecc64c9f5cdb2a4ddd
10. 0x5ab9df02563b395aaf38bb478b40a0e0ddf5ebc0d2a457188286223fa405bf1c
11. 0x5a0de59ba626668c79c70ff1a78c6132efbe0de4f67d8aa9fc78153b86c97517
12. 0xc3e080b0f3bcdbe1708428cfe88efcd0227f1f5b548c6c415a3a5110b33e858b
13. 0xc08a95432ee62dd58cb3728c1d0459085d8413489549424626ac5b39a364bbf4
14. 0xef0d1fd5544fb725719e2c1f829863138c2a1d7485e7f69d488a1dddb98843f6
15. 0xc712f139a437e96ecb98a6d83c47c29921720c39ba2e7e94f4973de043fb567c
16. 0x24ea73817c2ff07f87a42be89aff36ac5fe49b64420a647cd406ee60e6a77f70
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0