Evidence row 56782

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://referral-rock.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/referral-rock/"
    ]
  ],
  "name": "Referral Rock MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-25T22:35:16.750171Z",
        "status": "active",
        "statusChangedAt": "2026-10-25T22:35:16.750171Z",
        "updatedAt": "2026-10-25T22:35:16.750171Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Referral Rock programs, members, referrals, rewards and payouts; add members and referrals.",
      "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/referral-rock",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://referral-rock.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/referral-rock",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Referral Rock MCP by usefulapi",
      "version": "1.4.0",
      "websiteUrl": "https://usefulapi.io/referral-rock/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Referral Rock programs, members, referrals, rewards and payouts; add members and referrals."
}

What the leaf hashes

{"body":"650caeb12f2e13734e6bf9c9ae2ffcc630524fabe803dcb0cac1fd17b487fef5","id":56782,"kind":"listing","method":"baseline/1","observed_us":1793025440766398,"prev":null,"subject":"mcp_registry:io.usefulapi/referral-rock","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x1129da1b9df5226c8b7034f3ae6f8754a71cc4721337d23847a4252bd16ade65
2. 0x63786dc4e199409934f6d69f7e36a40121dc947c0e10c6617d1b0b73d9f2e203
3. 0x229392ce54bd4dcc9c870563512f8a59a858c622dd9b8419c6b870c194745989
4. 0x821191cf0a67bfe9a24822df08fea300ba17d489566d34ca47e99c4923605afd
5. 0x4897874840f207696f5590f7457a20cbe5ebdb664450d191d22eac1234401329
6. 0xcc71da383a59789ee8eff114d43891f26c22d90b76bf552a365e336e211c1ee7
7. 0x039455e368e85de428f1a4bd855984a50d1bf462435f30fe502600868c52369b
8. 0xe2308168fafc03db75ac738ccbe262189b944e6b3f5679b3dd0746bbc7f6738e
9. 0x6636667d35b8a5cad1e61d09b134d4162fabb1d272343782d568d56acb39a500
10. 0x59eeaadc4738eed3343bd128dc8e9beeacada4d8b43799e35d914cb411b97394
11. 0xb3d22f508aaf8117a0a5454390284c48363baa096e225b30af56d708d8dcd0b3
12. 0xc02d9eff6ef94d46d90d54320548f18fc3f05787047265548577569253c19969
13. 0x294f7935f78a896b5f246a7c9a7ee1b023720acdb03fff3cd549c63479848ec9
14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae