Evidence row 3764984

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": "2026-11-06T19:34:14.575847Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T19:34:14.575847Z",
        "updatedAt": "2026-11-06T19:34:14.575847Z"
      }
    },
    "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": "1.37.1",
      "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":"1300f6bead1f778c146d19b2cb54ef9023ec12c60c3a1c46b4b26946063bac7f","id":3764984,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793996592824532,"prev":3723624,"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 2026-11-06 (303443 rows).

1. 0xe71a8ab857a1679cd7be5252af8a7ba0592e6bea4f11eea56f99cae9ede0287a
2. 0x23f4330f269224be6aaba0657e729d3b038d9f2f93c6805f99295b61f4f11f3d
3. 0xfc762816a7e74f9a804b0549242ed9f23421196aa876faa4b4fac34fa9e1bb37
4. 0x816f6b6f394e7b64df593eef1e0ea857451e340b151cf3ea8f116d26a9a34e0e
5. 0xbc0dbed5f095397166487be623219177859ac5a65bfb1ff84076fcfa068793a4
6. 0x88deba8add8d12f36c3da43d6a9cd0f7228a28c055998e87af3354c6523001dc
7. 0xb0413283f679275b9985c99272d8a8fa20db71f5b7d08c7b54cef2cd87f42db9
8. 0xdd31a1e73f62dddb3760a8dc8abe4c16fa8b594b766397d461709df3dc067968
9. 0xed6713e6481a5fdc368c70f31960cf0f7dc0d6814be258340bbc5e038750bec0
10. 0x6b3a36d8d73098ddae3cc1c8c2d3be2d38976af4c8d79ae3345f9b43dbaaa100
11. 0x25a864f4e0538b3c499b92eea6d0eb08f5c4ceb21cc3385fd73c3976c43e0ea0
12. 0xbd1c440563d73adcb53c1b1a4153f024979facb0e6592d50e037203a112383f7
13. 0xd4ef792a9e1c9b403f59a6d5d3aa11d46e8b4e8adee74e7029dd1d3e0c974f6e
14. 0x5eeb09922285017cece19983a34f7483063f36993e355561c47b20ade87bfe43
15. 0x3c1d5e613d15e0df0cd0c1b1c0e33f6806b96b933b69d2555bd92b4570955879
16. 0x04c1c4929933bae20304ac32084d4b93dcac07567f68e828ac93bbc39eb4614c
17. 0x0ab273486ad4e41bf08c741b20b2ee12e0fc87eaa429a5467c58fd3be34409b9

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1