Evidence row 1482038

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": "2026-10-31T10:52:43.741813Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:52:43.741813Z",
        "updatedAt": "2026-10-31T10:52:43.741813Z"
      }
    },
    "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": "1.31.0",
      "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":"d5e2c44ee42f640ef546e1b5935c87b56b7467d24c3dca7cbc8b78c142f1f656","id":1482038,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445360334566,"prev":1257659,"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 2026-10-31 (246033 rows).

1. 0x8f2764654828cb3d7583b4ed0d140f0fbe3f1027f56b0f3ce5c8bf802ad23e63
2. 0x5941092e295c7e3068cc68f1099c1fe417d5f2ed22413aa719cf6933de63ca2b
3. 0x91f3ef2fc63a48b0e2b1622b4339ef80cc3acdb642e31d35aadaff9bff08f122
4. 0xac22f89875209e04487e0c19f480c14fe471c03909dbd4691946fac4cd0992e5
5. 0x195c32b91300306f25f5ccd8dd32cd361032dc3aaf3e0082f18ba2a44212b275
6. 0xfd89291d82cbf5c2f70631d57234589a6e5f4767533fe67ac12aab3fbb7b765c
7. 0x6c084f4bad89db8a619f8efdcbac5eaee2baf88847a8037351a3333f6ea34692
8. 0x1d69ed2b50342b9eb7a9118c49675b9a48ecace6dfe186247d106cbeedca9262
9. 0x75dc429db50a71a3ed49fbd3b0a8efb554a428305b2558e05c5863569efcb78c
10. 0xfcc291438de127e190c8cc4049117c58913e3275e4444421559f1afb6bfe7cd1
11. 0x075add8126fd6e0508b34f1e1c691248252d4f1c816155f4680428b7b31e9bd8
12. 0xb35427049c0ec0bf3388909156a8b2405fc397caca5c71b5d546f289490e602e
13. 0x473240d96a907ad7172b60dd64bc6ec1ec3c974fbda5be4acc25be00ea94115f
14. 0x53cec9a253425d115917fd16acdf0d80665ab0944593859ce1e8b491b9693e2f
15. 0x91bc1c2b25f148b9b56bf377304983d0f2e68d0d8c3f65c9aaa8adb083331d11
16. 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0