Evidence row 2130333

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://lob.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/lob/"
    ]
  ],
  "name": "Lob MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-02T11:22:18.512974Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T11:22:18.512974Z",
        "updatedAt": "2026-11-02T11:22:18.512974Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Verify US & international addresses and send physical mail (postcards, letters, checks) via Lob.",
      "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/lob",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://lob.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/lob",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Lob MCP by usefulapi",
      "version": "1.35.0",
      "websiteUrl": "https://usefulapi.io/lob/"
    }
  },
  "source": "mcp_registry",
  "summary": "Verify US & international addresses and send physical mail (postcards, letters, checks) via Lob."
}

What the leaf hashes

{"body":"793d6082feb46739c0b32330e920f24b77c0c156f8a5f747c209e1c707b3e7b1","id":2130333,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793621910675238,"prev":1541358,"subject":"mcp_registry:io.usefulapi/lob","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xc53b8bb0b8fe246d4ce899052cb063030b180b4ddf1a6a599e4f0e3b20976e33
2. 0x1acb9e08d60e4cba5f3548da1ba64c9a3f79723b16836a1d693bbb1d87787ff6
3. 0x9c8a6fdc144a9889833ae542b41f1aeccec4f80c88c3e75b8a26fc0deb0fa801
4. 0x3a292355a58b4c9d3f08b7880cbba2cc3fa8950474814440d2f92002c2671c57
5. 0x641838b8dd3935d37d9507e9da42c2770744fdb8330dcbe37fceb35413763500
6. 0x3fae4424d04fc84e098bdbfe5aee466380265c99db87454c2f7081b5c580e628
7. 0x5e1b4d1ac5a21495471c6689e73727c2d06bb37a3615767af088b6f3cc144afb
8. 0xb92b269e2b00c4dcf57f2fe37fb9b2976374a8f5199be202780eb641942ee026
9. 0x092f785e02ec13db8e225c21f17bbee075b84ef1c8d7a38ef758488f8f5b8547
10. 0xa688d2dc9e2b296fcb5a6d5b1ab46f6f41503b93ac47f63f3f31ed2021be895a
11. 0x842f383cbb44caf166d2b21caf5381c244aa3e938a540c1b81d2052f2e5f8850
12. 0x7aa0065f9bcb7fcade26c7f3b9489f82eec110abf81d620f345f0a889dc13028
13. 0x61ee210f299fdcda2ea75817592c9621ccbd35e0e4358cb705a10dd284df07af
14. 0x0b45a0435ea40bcbc48c2b318e8c62aa48a7e6b10e52b4548ada394225a7bd9f
15. 0xcbfaf790331071a9b3499a4db6f9d951fe5d04baefda2c66846b52b023ab8ae5
16. 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af