Evidence row 2546566

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": "2026-11-03T07:15:35.886165Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T07:15:35.886165Z",
        "updatedAt": "2026-11-03T07:15:35.886165Z"
      }
    },
    "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": "1.35.1",
      "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":"85658a6d1c2288074ad8a210b66c060efdba011907ea882d22bc365fdc1577d5","id":2546566,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793690348589265,"prev":2130333,"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 2026-11-03 (425475 rows).

1. 0xafd4f17d7191af51d4c72f7945431d1d03e89eed8ef736b92bfc46450f8f9e5e
2. 0x8c658ccf9b5fa9540c2db51be3f492c6b2b2ec5ae2673e02253b978ee37096ee
3. 0x5116eef23cabcf670a258071ff444abe38fa66058d18b2022ddd03067ef06188
4. 0x81544aef5eef1e99eea4f3b930ef802c25bce0ccc3db2d03c3bea43f92a4d951
5. 0xd66010bc7882f491b9b6327c3485373809146729f3a0e2bc3852fc9af1e7de38
6. 0x9e99dcbc76c31b0b8ed915ead675ea9e5e8e7f4a4ce4c5b075f5fd1ce2122360
7. 0x8ada64e1935c74173ef83093071b1df705a6f8025490e30fb630714423e02511
8. 0x4e6f1e19c8c90f63f3be7fc4f3db3ec13c2c2286f116c3164509a1729b7104ec
9. 0x2e26e04b552a1c41341990e0ff4438527fa2cb8fc673516ff60cba29603d1cf7
10. 0x86296f0c33233372ba12b9cfca9ecd431c6ac042757b14ad2ccc4395e72ff095
11. 0x63d19cdeae618ad9dfc1190840a76b2ae909360c3970067c04e70222711fd719
12. 0xe76f791089ba448cf5c37346afb8fe5ee2f3f91391fde676597825bbe36679a0
13. 0xe77cb660ad4fc9cdf06388820598606d0cfed52a41772cd9d2f56246f2635e96
14. 0x11934b37b54663f98169a4c48cc2b0a60fa4a3c4018d1ce3e508ac01ae614249
15. 0xa538822e863ef8366c4eb66bf75faf8a639aa1f066f65f7444fa54d54d48ec53
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7