Evidence row 17455

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://masshomecomfort.com/api/mcp"
    ],
    [
      "web",
      "https://masshomecomfort.com/ai-assistants"
    ]
  ],
  "name": "Mass Home Comfort",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-08T22:28:14.568383Z",
        "status": "active",
        "statusChangedAt": "2026-10-08T22:28:14.568383Z",
        "updatedAt": "2026-10-08T22:28:14.568383Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Find local home-improvement contractors in any Massachusetts town and request estimate visits.",
      "name": "com.masshomecomfort/contractors",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://masshomecomfort.com/api/mcp"
        }
      ],
      "title": "Mass Home Comfort",
      "version": "1.0.0",
      "websiteUrl": "https://masshomecomfort.com/ai-assistants"
    }
  },
  "source": "mcp_registry",
  "summary": "Find local home-improvement contractors in any Massachusetts town and request estimate visits."
}

What the leaf hashes

{"body":"7d5b971bdc6e4f2b9ee4a74f685330010b665f7fb4aba3c659b02e0ca00d0d97","id":17455,"kind":"listing","method":"baseline/1","observed_us":1793025326604119,"prev":null,"subject":"mcp_registry:com.masshomecomfort/contractors","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. 0xae12efcc9f4cf358f9372f60214558688afa08eb5929b5e21a34d4e25c04237a
2. 0x6c2c5dc78e7cde730cb44933597f6fd54e064f4797b32292ffbe04a0147596f9
3. 0x682313c8e46c137e4328e0d1e0d6ca80c217620dcb97b21651e5f989c588f34a
4. 0x9067532a394473a84abf1e5df99608f5f159a8dad1f4079192607753ac15685d
5. 0x863a4493bff6062df6528223b9b9569b32c2c7be0f7a9e2e3ddbd135344f090f
6. 0x3f674abff0582f1dcbc0cf50074307dba30e3d652a0917d686b0123944c57890
7. 0x9c93e4148e1120576e62b72aeb65995179e4243e9e1b669662d27dc5f578a212
8. 0xb90c6019b58b536c51661e0f95eca6e1a81620a1938168290cff88f46976a9b3
9. 0x80fe5c3f24b47a73955a91ae2241f691c79abce83a2732d5e9eaf806332c2ccb
10. 0x3c54c01bf4318d5a836732de25aa152fd493cfc74e9e7d61b6833262a76c28e9
11. 0x3ed84d9e7fe1a3a53a5614d97b48e393d726ca06109e83696375afe5ad01fd8f
12. 0x51f06c175a7c946ebe50ef243d6f9370a8fe85c996e53eff19ffcc4585ea8c18
13. 0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217
14. 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae