Evidence row 1025402

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://quantwright.com/api/mcp"
    ],
    [
      "web",
      "https://quantwright.com/docs/agent-api"
    ]
  ],
  "name": "QuantWright",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T13:05:43.324932Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T13:05:43.324932Z",
        "updatedAt": "2026-10-29T13:05:43.324932Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Backtests with costs, a held-out test that counts once, a score that counts every version tried.",
      "name": "com.quantwright/agent-api",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer followed by your QuantWright API key (app: API keys).",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://quantwright.com/api/mcp"
        }
      ],
      "title": "QuantWright",
      "version": "1.0.0",
      "websiteUrl": "https://quantwright.com/docs/agent-api"
    }
  },
  "source": "mcp_registry",
  "summary": "Backtests with costs, a held-out test that counts once, a score that counts every version tried."
}

What the leaf hashes

{"body":"50c68aec96658b15f1bf2c318ad8e3b86ffb2d35a8997cfea816708b91a143fc","id":1025402,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793279588068256,"prev":null,"subject":"mcp_registry:com.quantwright/agent-api","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0x5b83932293ec3bcb0d7f5a2ac3e6b67b6e77f111ea398cddc2dfd21acf5d9e09
2. 0x20cb5868158d5303c8f114fbdb45e2eb6808dce345e6312bfb2ca4ed40ab0000
3. 0x9ef18f95dc97450872fe1ab24f3fca14a903cc8de5b82c9b2db81e8b0d997430
4. 0x76ee9f1e68fe118dce97ea2de5b0ea5b2efe3f29b5f12a481a79a279af560068
5. 0xba41db6649c7e1d5d2c631bfc24e87d31617ff7b4a25b971feedfe29cd6d189a
6. 0x52286674b46eb929ee27d39ee068807e6b71f667a213656c2a5a69d1b574cccf
7. 0xf030158c39c72593c85e525e4c2f50f71a4cf46112e41bf972f8fa75db9523c0
8. 0x95d6a3fd9fbbe39489ccf7a20a500274e38fe91fb3f8f7cbf1be76cb71e5e97e
9. 0x79375f99402702426dd3c0343f9f0392d5f0ff3d86d48d5e6072386a79445712
10. 0x9237057b0da6596872f424603edb55d6268de59bf6ce5add115bba6ec052e7c9
11. 0xf6e558a1bc11ea09fa2b7ee50f97faf75b60ea0f8962cd2d028e479558315dd1
12. 0xf2cc4729510632c771067538b85013ba091033492f737a7205b9fdcf15a8d172
13. 0x03bcddbafdd5c3b2cfd0ed77db8b385d1daefb8582c49039e5b2d78c95e4b697
14. 0x3f2650fbc651fa3eec11adb4b123cd97e6e8054668be9e574fb88fd72c05303d
15. 0x5c72917224317e5d0d7a0d4ada19337530fcd8b513d6fc46866876f7844efe17
16. 0x976395aaca1b771b7e37710dee4157412909d2398c44e306a2e1e3fe83b984fd
17. 0x91f12a2db1e2c1be07cbe4de3981a37a33051a36d3c3eee5a260804add6d1d75
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1