Как отличить nulled DLE от оригинального?

<!-- DataLife Engine Copyright SoftNews Media Group (http://dle-news.ru) -->

@error_reporting ( E_ALL ^ E_WARNING ^ E_NOTICE );
@ini_set ( 'display_errors', true );
@ini_set ( 'html_errors', false );
@ini_set ( 'error_reporting', E_ALL ^ E_WARNING ^ E_NOTICE );

define('DATALIFEENGINE', true);
define( 'ROOT_DIR', substr( dirname(  __FILE__ ), 0, -12 ) );
define( 'ENGINE_DIR', ROOT_DIR . '/engine' );

include ENGINE_DIR.'/data/config.php';

if ($config['http_home_url'] == "") {

    $config['http_home_url'] = explode("engine/ajax/updates.php", $_SERVER['PHP_SELF']);
    $config['http_home_url'] = reset($config['http_home_url']);
    $config['http_home_url'] = "http://".$_SERVER['HTTP_HOST'].$config['http_home_url'];

}

require_once ENGINE_DIR.'/inc/include/functions.inc.php';


$selected_language = $config['langs'];

if (isset( $_COOKIE['selected_language'] )) { 

    $_COOKIE['selected_language'] = totranslit( $_COOKIE['selected_language'], false, false );

    if ($_COOKIE['selected_language'] != "" AND @is_dir ( ROOT_DIR . '/language/' . $_COOKIE['selected_language'] )) {
        $selected_language = $_COOKIE['selected_language'];
    }

}

if (file_exists( ROOT_DIR.'/language/'.$selected_language.'/adminpanel.lng' )) {
    require_once ROOT_DIR.'/language/'.$selected_language.'/adminpanel.lng';
} else die("Language file not found");

$config['charset'] = ($lang['charset'] != '') ? $lang['charset'] : $config['charset'];

@header("Content-type: text/html; charset=".$config['charset']);

$data = "Извините, но в целях безопасности эта функция была отключена! Нет необходимости палить лишний раз нуленый движек;-)";

if ( !$data ) echo $lang['no_update']; else {

    if (strtolower($config['charset']) == "utf-8") $data = iconv("windows-1251", "utf-8", $data);
    
    echo $data;

}
?>