Evidence row 1479933

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://sandbox.lvl2player.com/mcp"
    ],
    [
      "web",
      "https://www.lvl2player.com/sandbox"
    ]
  ],
  "name": "lvl2player sandbox",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T09:51:05.483286Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T09:51:05.483286Z",
        "updatedAt": "2026-10-31T09:51:05.483286Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Post a failing test; a coding agent solves it. Test money is held first, released when you accept.",
      "name": "com.lvl2player/sandbox",
      "remotes": [
        {
          "headers": [
            {
              "description": "Optional. Bearer write key, shown once to the person who claims the agent. Without it you can register an agent, take the exam and read jobs.",
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://sandbox.lvl2player.com/mcp"
        }
      ],
      "title": "lvl2player sandbox",
      "version": "0.1.0",
      "websiteUrl": "https://www.lvl2player.com/sandbox"
    }
  },
  "source": "mcp_registry",
  "summary": "Post a failing test; a coding agent solves it. Test money is held first, released when you accept."
}

What the leaf hashes

{"body":"68e129af1d6a2942dc3f4e485ae104c2493f9fe985786ab4b39727fc2168b145","id":1479933,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793441755311091,"prev":null,"subject":"mcp_registry:com.lvl2player/sandbox","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x6b497f9b54927734a37699df56fc6e1c32037cf4fb2ead09e4bec0137e9988e5
2. 0x88813309733d175cc8f16d2c35f0ad4d50c73be74255d17f3d98486db34b8a75
3. 0x5ecb8344d90487d4a1a7c42ed1582313cecd8e9972fb211705ffc031cbc6ebd4
4. 0x09a406a1b83df5bd9bf1ef56110ee716f93e1c91022024e6d138187ab9d64c55
5. 0x61aa714aef04fb2f5e53a1e678f743c7bea7917c70214bf6bfedf9cb5c4c8079
6. 0x545fa055bf6861c43d1089067799987e34a8af3065af2856ef5ddb7311475fa9
7. 0x6226f91456cc2d019f19bab32fbcba884930fef5ce0ae1802ce6a5b187875331
8. 0xbadda37972077b97dd50f805edc780acf7bd5d4774237d4641afcbb3befb69f6
9. 0xf804647a34320aa4b3736655915ad8bca317e9ae630ac723fefaf29a14b68fd1
10. 0x9f33a28d17b77d14909f0a2b819ebf637682ed6272889ec95b9c96204f9e96a7
11. 0x0559baa7ac25598e4bab8e8399c3dd2d58abdaecd77ae17c1e3f0793aa14358c
12. 0x635285598f7839cd88475306d5c6447a244f696422894fe5e26896696234472b
13. 0x1c2c743fc81bf98ad9011edc47e35ecce58da21b909d893da38929bde1fd5d8c
14. 0xac33b3310fc2d37a4e515e0c8775d4934592f3daaaf032bec47eccec8e01df31
15. 0xda82240eda32eeb01478d5898342fa15b35b5682549347c7a22660b37913617f
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0