Evidence row 1005410

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": "2026-10-29T07:45:25.224205Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T07:45:25.224205Z",
        "updatedAt": "2026-10-29T07:45:25.224205Z"
      }
    },
    "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": "1.29.0",
      "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":"2f784e48cc5c86bdee457b4eca4bb9420ad103672c34a1951d0e5db28c99e3c7","id":1005410,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793261579949221,"prev":800814,"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 2026-10-29 (242798 rows).

1. 0xe3505bceaa30a43d903ffad8131f5de2868d53ee1f8d747a660a49953df93fe8
2. 0xe25052c4a49ece7a43820524e3a8b5f1850cb652146d90829933da7b97e0855e
3. 0xfb4b188294ff4d54ad8beb0df730cc7c5bbcf83dd9860a07a2eb1bfb9c29c8a9
4. 0x437565ede2283f66fa32c00c4f56244bbe696b5b022ae8849c23266ab2ce3f2a
5. 0xd297ddb4c026d10e91df5b587e99c134ae6feffff2813057958d3ba3922b7542
6. 0xcc9adb02a7ce828a570f5cada2732866c7f97fd8497ac686a57f74f084b9a536
7. 0xd60a1245e7e3fbae445016d83594ede5e82cc64106dcaf6a7c857796c7c7e676
8. 0xaac560df08c57ca5d22da4ea1fda6dc2dd7f8c8823268c8c49d1f7110580b8c1
9. 0xa46a67778a8910aa86f58d784eb8528836b1ccf9f01e6d61b444aa391a64181b
10. 0x9b7367668bcc013f124943420cb73c99d2bde16512b5be2bb70eb48ac48d453b
11. 0xadcba9591434d8a7b4f6035482b9a04cab663b4dad0d00b795c2b7eb42a80936
12. 0x247ea3a1ecf496588332a6512fba8396cfeb0d4a3b91d4a69d8c4e72801689fd
13. 0x31d9bd174da02f7a79f3f5f6068e0a16f8b2319ca4f6d9a4cd93464988b1ffce
14. 0x5eebfacb78943282482b6079e45bf142a28ccb1f65c473e6e0a90d378cca2b03
15. 0x1623e28c5fc42dfa00ec1935da937a96d5bbf27124e83666dc61efe8facbb339
16. 0xa034ebc8d117fbf1ed466b70baa0478bf213b743e1a41cba1d2da7a9f310184d
17. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1