Digital authentication system. The new world verification code is not an ordinary verification code, but a digital authentication system launched by New World Group. It adopts blockchain technology, which can ensure the privacy and safety of users when handling credit cards and avoid problems such as fraud and data leakage. In the future, the system will be extended to more fields and industries, bringing more convenient and efficient services. Credit card, also called debit card, is a credit certificate issued by a commercial bank or credit card company to eligible consumers.