Evidence row 1544871

What was observed

{
  "endpoints": [
    [
      "web",
      "https://agents.noahsarch.tech/"
    ],
    [
      "mcp",
      "https://verify.noahsarch.tech/mcp"
    ]
  ],
  "name": "Email Verifier",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T22:22:18.169444Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T22:22:18.169444Z",
        "updatedAt": "2026-10-31T22:22:18.169444Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Verify emails: syntax, MX, disposable, role, typo fix, optional SMTP probe, SPF/DMARC.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://agents.noahsarch.tech/icons/noahsarch-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "64x64"
          ],
          "src": "https://agents.noahsarch.tech/icons/noahsarch-64.png"
        },
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://agents.noahsarch.tech/icons/noahsarch.svg"
        }
      ],
      "name": "tech.noahsarch/email-verifier",
      "remotes": [
        {
          "headers": [
            {
              "description": "API key from contact@noahsarch.tech (catalogue and free tools work without it)",
              "isSecret": true,
              "name": "X-API-Key"
            }
          ],
          "type": "streamable-http",
          "url": "https://verify.noahsarch.tech/mcp"
        }
      ],
      "title": "Email Verifier",
      "version": "0.1.1",
      "websiteUrl": "https://agents.noahsarch.tech/"
    }
  },
  "source": "mcp_registry",
  "summary": "Verify emails: syntax, MX, disposable, role, typo fix, optional SMTP probe, SPF/DMARC."
}

What the leaf hashes

{"body":"70ba8e7a6ad03aefb269cd7a8d5f9083bb153265c2d52985a03a0211ccfa0061","id":1544871,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793488625886252,"prev":1538241,"subject":"mcp_registry:tech.noahsarch/email-verifier","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. 0x1143e204a5b7ecd2cb776af68af0a253d07e5c8f7990dc5ac0c7003a0aee8212
2. 0xf6aef210991fd10ae03e4f5d2c0fe69366d750ce4df1c06bc2415039d384de00
3. 0x850900c95f5ae274877dc51d636ce79df5520675a1d8679862d5a63338df277f
4. 0xb02dcca2c337fc736fa370e470211283028313f5b53745eed18917a6933d8950
5. 0x8efe408837831a453a09184635a83ef831622a4a8ce23787b342d321b43295f7
6. 0xd3f68bc6b7cd62b3245895903e8bb4190dde57a445f173cd29192cc8613449d3
7. 0x4fda172b73c9f3e0d77104dc86237b3ba36e52123c24eaf0963f112edd1bf7ac
8. 0xbe4bffd554b28eca01b908fdfc300f44c1071a70b94c1050d0946e872cd2aeb6
9. 0x07f99fe769ca5cd16a1aa529c8b1dda8a148ca467910e6bc4808eb26959bac79
10. 0xea747f90be88adce0f486dcd9150e29481abb9e42e76f22467b5f73991670017
11. 0xd7c5ad5bb35801f073dc7ece02be8fbd460124056ae626b43715811bb1de7fa5
12. 0x3506f733503d54d5526cec588d9e8b1f94f6fb7fc812cbfc49cabc52200335f5
13. 0xf2b49afd37f6c7a074cb7e2e9bd6248a3e1bcb90308acf1af6b3be8a3c1b7cfe
14. 0x500efd0d65e793a02397af46769412226d4deefe24ac497b68f3a32f6828638e
15. 0x95ec49fc7f2c7be30422eaa1d0d6036836dd63ff46a8ed4027258fcf3eb8cf24
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0