Evidence row 1245678

What was observed

{
  "endpoints": [
    [
      "web",
      "https://casitatax.com/en/ai-assistants/"
    ],
    [
      "mcp",
      "https://casitatax.com/mcp"
    ]
  ],
  "name": "CasitaTax",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T11:50:32.097016Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T11:50:32.097016Z",
        "updatedAt": "2026-10-30T11:50:32.097016Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://casitatax.com/icon-512.png"
        }
      ],
      "name": "com.casitatax/modelo-210",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://casitatax.com/mcp"
        }
      ],
      "title": "CasitaTax",
      "version": "1.0.0",
      "websiteUrl": "https://casitatax.com/en/ai-assistants/"
    }
  },
  "source": "mcp_registry",
  "summary": "Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data"
}

What the leaf hashes

{"body":"4e53daf80bf644a7fd4b41e80fac82c2fdc5362fcf871bb3e90644b028fac7f6","id":1245678,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793362519417041,"prev":null,"subject":"mcp_registry:com.casitatax/modelo-210","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x4bb238241461a1ef199fc0b7e5afc9fe469fdc7bda72c94257c9e2dbf5b3d064
2. 0x7d0cdd2d379b4a55258feb0b47c824a025a208faed151245b47a99ecba14fd19
3. 0xe375ec8c7061cf638885985212d275eaae3f3afbd9a0f3aaced50755eaa9a235
4. 0x388997b1d9873ed273be9f8851bfb2695a2078f9eb3b895bcbee573d80fd7514
5. 0x975b40b7dda5657ef5aaa17faba04829c2efdcbd67c2e0aa3af13769c863387e
6. 0x3385806b06c67fe940a8b4d65096284fdeeb940af0c9cd5a67311c8210e87752
7. 0x9c9c774b54ff8df5c53dc0e99becdec385e420f0125414a4c0c438ded97278aa
8. 0x83db2975af8ec48a14949d0ad26836cb083e4dcd751cbb4a7893e82df4d639b3
9. 0xb92eaea4619d4f44119cf21ba30514443d2ae03ee4e08c6e32b1469b9e760d29
10. 0x7b48841a5443bb164c317a7e794f6f7e475f8aa8d4f07bee7a5a479e7e0e688b
11. 0x0de9b02a84a14ebd6172f6f2393596aab3218cc576d287b66eca97a7db40b2c6
12. 0xc1a9925f6a2afcf3cdaff51f8c62b7a434f58a65a6415c4fa6b12605d2f3d816
13. 0xec056ea330536f437d7c8a8262b1a5055dd234070d691d0d303dd85828fa5a4e
14. 0x9ace81ddbf101c81e3033efcaf62a4f4ad2b7dc0b97b61a7adf81117108ff2f7
15. 0xa937fac4496d1d79e24c5f12abd33388ef710185b9d82165d4b39af6bd434545
16. 0x910a91495535ac1a9e959d27d607e185616d2d41b45bc7071c6357f426f372d8
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861