{
  "schema_id": "ariaidentity.login_session.v1",
  "login_fields": [
    "event_id",
    "timestamp",
    "user_id",
    "app_id",
    "result",
    "device_id",
    "mfa_type",
    "mfa_result",
    "network_zone",
    "geo_quality",
    "vpn_flag",
    "country_alias",
    "ip_alias"
  ],
  "timezone": "UTC",
  "null_meaning": "dropped as incomplete",
  "session_gap_minutes": 30,
  "notes": "No passwords or tokens. IPs and countries are lab aliases. History features use only events before the session."
}