There are uncertain factors in the identification of the authenticity of the signature, and there is no expert to identify it at present, which is difficult to supervise. If the buyer finds something wrong with the goods, he can report it to Taobao. Once a commodity is reported many times, they will investigate it. The authoritative judicial authentication center has a handwriting authentication department, but it does not accept the business of "authenticating the authenticity of star signatures".

In Europe and America, star signature items are also very popular. In order to prevent sellers from filling in the blanks, European and American sellers usually attach COA(CertificateofAuthority (COA) when selling star signatures. Once COA certificate is found to be forged or received too many complaints, the auction website will blacklist it.

Taobao is a large-scale online retail and business circle in the Asia-Pacific region, which was founded by Alibaba Group in May 2003.

Taobao is a popular online shopping and retail platform in China, with nearly 500 million registered users and more than 60 million regular visitors every day. At the same time, the number of online goods has exceeded 800 million every day, with an average of 48,000 items sold every minute.

By the end of 20 1 1, the daily turnover of Taobao reached 4.38 billion yuan, creating 2.708 million direct and sufficient employment opportunities.

With the expansion of Taobao's scale and the increase of users, Taobao has also changed from a single C2C online mall to a comprehensive retail business circle including C2C, group purchase, distribution and auction. It has become one of the global e-commerce trading platforms.