# List checkpoints
The anonymous credential literature is filled with variants of the above approaches, sometimes combinations of the three. In every case, the goal is to put some barriers in the way of credential cloning.。关于这个话题，PDF资料提供了深入分析
However, if you want to create a template from scratch, you can do so.Most of email campaign tools have option to paste the HTML code of your own design.。PDF资料是该领域的重要参考
Россиян предупредили о возможном подорожании товаров из-за конфликта на Ближнем Востоке08:42，更多细节参见91视频