The proof of assets is generally the data required for visas for going abroad or buying a car in mortgage to buy a house. Before that, you need to go to the bank to go through the formalities. After Alipay provides the proof of assets, this service becomes very simple. Users only need to log in to Alipay's webpage on the computer and select the self-service in the service hall in the upper right corner. In the application service, they can see electronic certificate's options, select the proof of assets, fill in the ID number and payment password, and after confirmation, they can open it by themselves in one second. You can see that there is a red "Special Seal for Business Voucher of Alipay Network Technology Co., Ltd." on the asset certificate. This chapter uses e-signature technology, which meets the requirements of the Electronic Signature Law of the People's Republic of China for reliable electronic signatures and can be used with confidence.