Evidence row 1257788

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://sendlane.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/sendlane/"
    ]
  ],
  "name": "Sendlane MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T15:16:00.126341Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:16:00.126341Z",
        "updatedAt": "2026-10-30T15:16:00.126341Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Manage Sendlane lists, contacts, tags and custom fields; read campaign and SMS reports.",
      "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/sendlane",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://sendlane.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/sendlane",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Sendlane MCP by usefulapi",
      "version": "1.16.2",
      "websiteUrl": "https://usefulapi.io/sendlane/"
    }
  },
  "source": "mcp_registry",
  "summary": "Manage Sendlane lists, contacts, tags and custom fields; read campaign and SMS reports."
}

What the leaf hashes

{"body":"0506f1d6bdbf76942584e349603e0c1120de37435c0c7fdcbd413f0a353d1f5a","id":1257788,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376930664841,"prev":1249802,"subject":"mcp_registry:io.usefulapi/sendlane","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x5e1efdfc1ef2e51a4aaf5b256f0820354ad899c62e0c1d4d88b0e4b3e920e39a
2. 0x0f12693b1585afc476c5a31a7fe5eaaa550693d027c5883ceabe603b36476db9
3. 0xd1efaecd7515adb5688cfddc66753dd7d61232e0be1041ec18a1a6a838199237
4. 0x7de280920de8785980fe343639c1358a172579a88087e1822e7e8fdc4b427cc2
5. 0xa724d003d60f912e23ad18dc9d13c07930de617192c66a8a6887a6212b51ad93
6. 0xb81b95594a7a0ad47c759329e03ad898dffd91d8cfb02d5d8689f1bcc3c79006
7. 0xa622db1f3794bae5f31f5086afff14b6b521725e2ac1a66893f070c62c22f8cd
8. 0x12e41fbf85b0367d53a07570d8bd90f07e34645d8d6933b171765b56c6025221
9. 0xf63466cfccd0f009bac8526e7d60fa089d1672f01bef397998933ccd0b6d1622
10. 0x7e915a10b5b64aa666a5568ac92d25a6f85e318ba7ab6b968c299de9f60c57f5
11. 0x23d4628fd807364cdd8cd9d4e2f97f9e771474e7a189691befcea967926ac237
12. 0xfa94159aef5b12f68a3f63d2d1da407c046b506ea4ce39470d2b54413432c727
13. 0xe40462ac4be9e0733d302c0e0df3c848b765843b82a83461994f72406640846f
14. 0xd036f65644c5bb700403844636b74b07a0ecb42fea108fce98c04207855ccb3e
15. 0x7ecc532de10b728de98de2eb2a81fbd8da2254ff32b38b6ffde14af9964fc470
16. 0x910a91495535ac1a9e959d27d607e185616d2d41b45bc7071c6357f426f372d8
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861