Evidence row 56693

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": "2026-10-25T22:35:03.533091Z",
        "status": "active",
        "statusChangedAt": "2026-10-25T22:35:03.533091Z",
        "updatedAt": "2026-10-25T22:35:03.533091Z"
      }
    },
    "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": "1.24.0",
      "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":"f8b3f967ce94a45dd743390e8560b4ff9f9f00c11e46e5494d7a31f997b92eff","id":56693,"kind":"listing","method":"baseline/1","observed_us":1793025440292581,"prev":null,"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 2026-10-26 (296695 rows).

1. 0xc2f07d7d7a3ffa8bdb423daae3d34130c1cdca08b68de7a4034eba50e18c1879
2. 0xb1def7ce7c4328ece707ddba0a9b970115b17a9d585760ed2797a7a24fede22c
3. 0x94dd874ac498d611aad500efb68ba85f5b14201803dae513fff631370c131bc4
4. 0x39d9853c7f50678aee6b01f1b11a8d242bf9bd7e2f1bf724d2e4af735cf27beb
5. 0xc880ee4e2971dc858d8619b0871e82ef6de2023775c91be91e093ee6b6df1936
6. 0x12268a555d266516c8f097f111489ed9244070f2c72669e9f69c05ac8238bb37
7. 0xb197fba1011a120b5ce807fb385dc9958aa427334b19c63d3ed0b3919d4c6a7f
8. 0x9b72fefe591a2700c562fb84983443d0093c455196167af39b4b3d5b92106300
9. 0x2eaec7be5e939f8e37b9ab727fbcfdd2cade093a31bba6c674df4f6089f70666
10. 0x00d960df50a5325e5736603a5a0d0a56310dedcefbef5371376f8262982d78ed
11. 0x7f4ae229fdca48d3ef8476aa02e4d171abb9d529ffe12fe147f9a22b16589b6a
12. 0x63002f2569d43725bbf2d04d90ec9e6cf925c96b6dda5e7e220ecfbdd9c2444d
13. 0x641fba1f23ec69d96721e34ace1926954d835b9614cb5eae215a069c056399b8
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae