Evidence row 30531

What was observed

{
  "endpoints": [
    [
      "web",
      "https://horizon.pm/"
    ]
  ],
  "name": "horizOn",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-23T12:12:31.037621Z",
        "status": "active",
        "statusChangedAt": "2026-10-23T12:12:31.037621Z",
        "updatedAt": "2026-10-23T12:12:31.037621Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Docs, live API tools and prompts for the horizOn game backend in Godot, Unity and Unreal.",
      "name": "io.github.ProjectMakersDE/horizon-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "horizOn project API key for the live API tools. The documentation works without it.",
              "isSecret": true,
              "name": "HORIZON_API_KEY"
            },
            {
              "description": "horizOn account key for the dashboard admin tools.",
              "isSecret": true,
              "name": "HORIZON_ACCOUNT_API_KEY"
            },
            {
              "default": "https://horizon.pm",
              "description": "API base URL.",
              "name": "HORIZON_BASE_URL"
            }
          ],
          "identifier": "horizon-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.9.1"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/ProjectMakersDE/horizOn-mcp"
      },
      "title": "horizOn",
      "version": "1.9.1",
      "websiteUrl": "https://horizon.pm"
    }
  },
  "source": "mcp_registry",
  "summary": "Docs, live API tools and prompts for the horizOn game backend in Godot, Unity and Unreal."
}

What the leaf hashes

{"body":"77448c65ae277d420b4563077b958575f6a4ecfef274068549510eb6459fce7c","id":30531,"kind":"listing","method":"baseline/1","observed_us":1793025363039073,"prev":null,"subject":"mcp_registry:io.github.ProjectMakersDE/horizon-mcp","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. 0xf6b492e59eafd28a92d058a9f2c40ef9d368df9bffb41c84da574357b73ffbb2
2. 0x7baec167c52106fa0314e978317fa926cdea9845c941d0ca43f2baea1069088c
3. 0xeb12faefacb471511bc09c451b7b9eef8e7802e21e9d33e11ed198ba932ebef3
4. 0x1ab8adc9fbd78c51bcf597f6d0c3e454e6f75db3a824b668e2d376a395706330
5. 0x742a80db46314ffc093ca12ecfbfb9340becc278678135c67ee958bff2343e8a
6. 0x1cfa4c02cf4971188a9b01def2acf6b46f87acc0685065c5ef71f46fb09ef590
7. 0x7de332611c2ecf66cbae6d47efd045f0f3c682f46aea499e9cb21bb101dabfc5
8. 0x9b11c481a0e88d2635c69ef2742a0865450efcdc279a7649107713d94b0e9c5a
9. 0x44982429bc4cac168c83025519db3b3f237c3366371304152a69cac496ff6262
10. 0xf5e8ef3ab5f9c23f542cbe0c046fd1eee75e680d15d275dfceddbf77d8c87937
11. 0xd987c6ca981b8dd0b1b11d115372fd199a82de229e1bc3db5a7a430cbc5575be
12. 0x4eeaa4735423e7633e0aaa6154804920315f945b1e4ceabd29282ec021cce244
13. 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae