{
    "challenge_id": "vc_1ea20a4049",
    "issued_at": "2026-10-16T08:25:30Z",
    "expires_at": "2026-10-16T08:35:30Z",
    "puzzle": {
        "type": "b64-sha256-v1",
        "data": "dmF1bHQtd29yZDpiYXNhbHQ=",
        "steps": [
            "base64-decode data -> UTF-8 string S",
            "compute sha256(challenge_id + ':' + S) as lowercase hex",
            "answer = first 12 hex characters"
        ]
    },
    "vote_options": [
        "mcp-server",
        "python-sdk",
        "offline-copy-pilot",
        "status-page",
        "signed-bot-files"
    ],
    "token": "eyJraW5kIjoiY3JhY2siLCJjaWQiOiJ2Y18xZWEyMGE0MDQ5IiwidyI6MywiaWF0IjoxNzkyMTM5MTMwLCJleHAiOjE3OTIxMzk3MzB9.G7SCmALP_mi2D-fYuvSBwQgriAun93V1MOYFhBXs4pg",
    "submit": {
        "method": "POST",
        "url": "/v1/vault-door",
        "content_type": "application/json",
        "body": {
            "token": "<token>",
            "answer": "<12 hex>",
            "vote": "<one of vote_options>",
            "bot_name": "(optional)",
            "waitlist_id": "(optional)"
        }
    },
    "notes": "Playful community feature, not a security control. \"bot_cracked\" means the challenge was solved, not proof of being a bot. Votes are advisory. One vote per network per day."
}