Abstract
Blockchain technology solves the trust and security problems in many industries with its advantages of decentralization and autonomy, and it also satisfies the needs of credit system design. It can be applied to the design of credit system. Meanwhile, personal financial information of citizens also contains great commercial value in the information age. Some unscrupulous businesses or individuals will obtain the personal financial information of citizens through illegal means and trade illegally on the Internet. The construction of credit system can solve these problems. In this article, credit system can apply to personal financial information based on blockchain technology. We expect and suggest that it can also protect the privacy and improve the security of personal financial information.
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