{
    "service": "CallChat ZMath Shield licensing",
    "domain": "callchat.org",
    "only_official_sale_page": "https://callchat.org/license/",
    "hosted_callchat": {
        "standard_matrix_chat": "free",
        "shield_showcase": "included for active hosted callchat.org accounts",
        "sold_as_hosted_chat": false
    },
    "self_hosted_zmath_shield": {
        "status": "available",
        "price_usd_month": 55,
        "price_usd_year": 550,
        "scope": "One self-hosted CallChat-compatible deployment with unlimited users, locked to one public server IP.",
        "default_ip_lane": "public_ipv4",
        "ipv6": "supported by the verifier when a license is explicitly issued for IPv6",
        "nat_policy": "Private, reserved, loopback, documentation, multicast, and carrier-grade NAT IP ranges are rejected."
    },
    "payment_receiver": "paypal@talktoai.org",
    "verification_endpoint": "https://callchat.org/api/license/verify",
    "security_boundary": [
        "No private ZMath implementation source is published.",
        "No Shield passwords, derived keys, policy bearer secrets, or Matrix signing keys are exposed.",
        "License verification only returns entitlement status and safe feature flags."
    ]
}