Analysis of credit risk and trust mechanism in data element market based on blockchain

Data Trading is an important part of the market-oriented allocation of data elements, data assets trading pain and choke point lies in”Mutual trust is difficult”. As a revolutionary technology system, blockchain provides a new way for data element market transaction because of its characteristics of decentralization, traceability, non-tampering, security and credibility. On the basis of analyzing the credit risk of data element trading and the technical trust principle of blockchain, this paper constructs a data element trading system based on blockchain, and probes into the system trust mechanism and the optimization strategy of trust relationship. The results show that the establishment of risk prevention and control system, incentive and punishment mechanism and operation guarantee mechanism based on blockchain can effectively reduce the credit risk of data asset transaction, the economic and social value of data assets can be brought into full play.