Evidence row 1025724

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": "2026-10-29T12:34:13.479196Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T12:34:13.479196Z",
        "updatedAt": "2026-10-29T12:34:13.479196Z"
      }
    },
    "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": "1.30.0",
      "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":"77c90d42b71d7e34ba9e31e17db1f9150df77515f3fd2af2e769739847486fb0","id":1025724,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793279590203635,"prev":1005410,"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. 0xae742769255ffcf1278176d3e69185f32e7ee0b96110263dba5f520f7540968d
2. 0xcd0988a4ca527e9451c90a0d9e05f1fd40e4324868793f01bd33955c70d1fbb1
3. 0xa4727b2424404c6bac65a218ce1fd4d270b75708dd96d88c1a489bee12c3b63a
4. 0x75040ed3a20b59abf50ee067f11df9e70f47277690ca2821386e96190cade3cd
5. 0x0b280a34568737231e363e3496680d1a30504830ef8fbc5868f181b816ca772b
6. 0x09586c7678a30d8da0984959aabdf1e74b3b04d55d5ca73b15d090010633e8a1
7. 0x17d453ad943b20e8fd4c92026887f2ffd94d38d3953ab26e415bf4b9109db4b3
8. 0x96cf3fc8a6eee890ff1d8989aba58550153382e316a6af448155a9238d161459
9. 0x7b4bd53848c365a1a5311dabaca64601dbe99b65ce27a979e2ec7b0cd0ff6cb0
10. 0xd0bd0dbfbf7be5c1f079e40cb2e2ceeb3413678f317b981abf24ce2cb44fb4d8
11. 0x80e111e92d7a8f6b7ac8e6b866c916af7f64e6382f70c961a2e94ad89c508393
12. 0x895e900de24394476af43fc0b1bb5e6d3af452e988bb74cf1788806bad7c3387
13. 0x30dba3897a2e6907174b0058b94302f9cd01c20ba1fffe70ca722237279171ed
14. 0x585b1e0c9b8e6cc02683a3bcbd6f86329575401feac9ee51a7efd21ed87f7ed0
15. 0xaa1d19094c2ce6d011a3c40533fa7efee207719d6c482ffc47018b28e5518acc
16. 0xef5d5572aac8f06b61579b7167b369fcb479d9027d4037dc9cacff9e3a26ffd2
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1