Evidence row 288829

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.craftquantities.com/mcp"
    ],
    [
      "web",
      "https://craftquantities.com/api/"
    ]
  ],
  "name": "Craft Quantities: construction material calculators",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T19:47:30.051673Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T19:47:30.051673Z",
        "updatedAt": "2026-10-26T19:47:30.051673Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Construction quantities from cited calculators, takeoffs, planners, drawings, cut plans. No prices.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://craftquantities.com/icon-512.png"
        }
      ],
      "name": "com.craftquantities/engine",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.craftquantities.com/mcp"
        }
      ],
      "title": "Craft Quantities: construction material calculators",
      "version": "1.6.0",
      "websiteUrl": "https://craftquantities.com/api/"
    }
  },
  "source": "mcp_registry",
  "summary": "Construction quantities from cited calculators, takeoffs, planners, drawings, cut plans. No prices."
}

What the leaf hashes

{"body":"9396c58f675a2cbdae6ec9891f38f0a997463e1fd602efa56e56f45dbc4f8c8b","id":288829,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793046218188369,"prev":14172,"subject":"mcp_registry:com.craftquantities/engine","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. 0xf175c2f20c6f1aa7635989779a118086cf4e191643f5ba6f285d75783f174ade
2. 0x7f7abc7c9e4cc1eeeb9aed5011129a5a30fb2a090dbd94916095b5a702be6e72
3. 0x94d227a8eeb57c4e22c724b2413b1d616feb5b73981314678c74ea0442cbacc6
4. 0x72afae894c779868839d3d64d8007a459284e6dfd03ec4aac53bb222a727a350
5. 0xe3da22b5313a04c6d5397ace67146289ad35a60cd0c72d6f7d2aa1a6fc6fa71f
6. 0xe8a4085638747abc13ba63277346041026c04cd7d985bdb10b1e9ac0f1a6bbf8
7. 0x3c6648ff78e70756b401c6792772e549e36b148b353d9c60a7a47df1f588a8b0
8. 0xe7a82ebf289114aa570f01f736f531ace9402cc46f11dfde856c5a4d5ee9505b
9. 0x9a479873ed84c0ad1f708dc60880fdd741ecd6c4698c984d55c1efab1b421e55
10. 0x1374d43b83adaf6956b75a4ffa6be9b5d88f279b0e1f9aa9cb997253f28541e1
11. 0x3fbb508bb3373d829808c4b964e49bf52f1a8877acba747d2b92b5eac81e6259
12. 0x4d2e94451b5ffc570a23dee9d1525bc305f1009994ffe23d8e2e7d45c60f6209
13. 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae