Research And Application Of Block Chain Technology In Credit Investigation Of Internet Finance

In recent years,the rapid development of internet technology has greatly promoted the deep integration of the internet and the financial industry,and formed a new "Internet + Finance" mode.With the mobilization,subdivision and diversification of the internet financial industry,people are increasingly favoring the financial consumption mode under the background of the internet.Internet finance has gradually become an important part of China's financial industry.At the same time,behind the rapid development of internet finance,internet financial credit risk events emerge in endlessly.In the past few years,because of the difficulty of payment and the break of capital chain,the online credit platforms have run away and collapsed one after another.The frequent occurrence of these phenomena has exposed the obvious lack of the construction of the credit information system in internet finance.In order to promote the healthy and sustainable development of internet finance,it is urgent to establish a perfect internet financial credit information system.Therefore,the research on internet financial credit information system is becoming more and more important.China's credit information system has always been based on the central bank credit information system,but the internet financial credit information has not been fully integrated into the central bank credit information system.With the increasing demand for credit information in internet finance,especially for individual credit information,the credit information system of the central bank is difficult to meet the demand for credit information in internet finance.In order to make up for the vacancy of the central bank in the field of personal credit investigation,the government has continuously promulgated relevant laws and regulations to guide the development of internet financial compliance,while encouraging the construction of market-oriented credit information sharing platform,and gradually improving our credit information system.At present,the internet financial interbank database credit model represented by MSP and NFCS and the big data credit model represented by e-commerce platform and P2 P network credit are gradually formed.Although the construction of internet financial credit information system has been successful,there are still some problems such as lack of information sharing between platforms,insufficient data security and privacy protection.Block chain technology has the characteristics of traceability,decentralization and non-tampering,which can well solve the problems existing in the current credit investigation of internet finance.With the continuous development and improvement of block chain technology,more and more scholars and commercial institutions are focusing on the application of block chain technology in the credit investigation industry.Therefore,this paper analyzes the status quo of credit investigation of internet finance,analyzes the core technology of the block chain,and summarizes the deficiencies in the current credit investigation of internet finance,on this basis,proposed the credit system of internet finance based on the block chain technology,which has strong practical significance.The research conclusions of this paper are as follows :(1)Block chain digital signature technology can help credit agencies to clarify the ownership of data,and its underlying data storage technology can maintain the privacy and security of data.Based on the analysis of existing application cases,it is proved that it is feasible to apply block chain technology to Internet financial credit investigation,which can effectively break the status quo of data islands and reduce the operation cost of credit agencies;(2)Based on the dynamic evolutionary game model and Matlab simulation analysis,the results show that no matter what the initial decision of credit agencies is,the selection of credit agencies can be promoted to join the system by setting reasonable and effective incentive measures;(3)From the perspective of social costs,through Matlab simulation analysis,the results show that for the individual credit agencies,the cost of adopting the block chain credit is lower than that of adopting the traditional credit method,at the same time,as credit agencies to join into the system,the social total cost of block chain credit investigation is declining,while traditional credit investigation is rising;(4)In terms of the storage efficiency of the block chain credit information system,the simulation analysis results show that the more difficult the calculation of Hash value is,the longer the storage time of credit data will be,and the throughput of the system for storing credit data will gradually decline.At the same time,the storage time and the amount of stored data show a relatively stable linear relationship.In terms of system query efficiency,with the increase of the total amount of credit data in the system,the average time spent in query of single credit data gradually increases,and the linear relationship between query time and query data quantity is relatively stable.In terms of the efficiency of synchronous calibration,as the amount of stored data increases,the time of synchronous calibration becomes longer and longer,and the time of synchronous calibration is directly proportional to the amount of data.The innovation of this paper is not only from the theoretical level,but also from the incentive mechanism,cost and efficiency and other perspectives to demonstrate the feasibility of applying block chain technology to internet financial credit investigation.But at the same time,there are some defects and shortcomings.At present,block chain technology is just emerging.The research on block chain technology in this paper is still insufficient.Although the use of block chain technology can effectively solve many drawbacks of credit investigation of internet finance,but the specific way to achieve it is still in the exploratory stage.The credit information system of internet finance based on block chain technology in this paper is only one of them.Although the feasible scheme meets the technical requirements of block chain credit system,many details still need to be improved.