Evidence row 277904

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.smtping.com/mcp"
    ],
    [
      "web",
      "https://smtping.com/email-verification-mcp"
    ]
  ],
  "name": "SMTPing Email Verification",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T18:10:19.810414Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T18:10:19.810414Z",
        "updatedAt": "2026-10-26T18:10:19.810414Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
      "description": "Verify email addresses, clean lists and check spamtrap, disposable, spambot and complainer lists.",
      "name": "io.github.smtping/smtping-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Your SMTPing API key, from https://app.smtping.com",
              "isRequired": true,
              "isSecret": true,
              "name": "SMTPING_API_KEY"
            }
          ],
          "identifier": "@smtping/mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.0.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.smtping.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/smtping/smtping-mcp"
      },
      "title": "SMTPing Email Verification",
      "version": "1.0.1",
      "websiteUrl": "https://smtping.com/email-verification-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Verify email addresses, clean lists and check spamtrap, disposable, spambot and complainer lists."
}

What the leaf hashes

{"body":"9118941d34aea13ce8af921abfd7075d65538914002197555563bebc278685af","id":277904,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793042044541066,"prev":52416,"subject":"mcp_registry:io.github.smtping/smtping-mcp","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. 0xcd5f3a93041bb88d79357f23b326fa643e1c2a4eb39e44724013e71c229eec1a
2. 0x246b72e27c36eaa17b66a928dc639451bb19240aee041bc10200feff1e8a89c0
3. 0xb5ef703f6a5d9b42d3418b0a34fd61011fa81c188f341bacbcfb60a99b3ef72c
4. 0x8eb5e0a26328a5e02a45a32f78108d37ed161e5a625a2196135dcb50dd943ba7
5. 0x88bbb3279e493dd136f6d031960c2981cc18f062323d1d943c20e62970d725c6
6. 0x7109e80d021608763ca3d773f7f2af181297a715427fa8ce095ee2ca8837aee7
7. 0x251b63ee7855f19b448cf651fd34e7fe9d148570787f1d0e9bd24f188840e559
8. 0x3e66587749c114f3ed473763fc5b644dfeaf2813106030bb88fe31854b1bfd23
9. 0xcea476671cfb9b6054ad03347d963f1d25bacf7eeb847646ed7c55fcf1982684
10. 0xaeccad08de53b9a0fc92661c50baf377eabe2395bccae896e3122c57861cf518
11. 0xbee3c0dbc9149e89a214e95afe49b5d8a825aaaf7aa1721b2d66bbb287d6fd4d
12. 0xa45f4438c9296b0ba586fc2eec9f0202e5d3c61a1d3adc975b80f6a1f4a5ca57
13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae