Blockchain-based Electronic Evidence Storage and Efficiency Optimization

Abstract

Electronic evidence is the electronic data generated based on electronic technology and stored in digital form. Aiming at the problems of data authenticity and integrity in the traditional storage methods of electronic evidence, and the existing blockchain storage schemes fail to give good consideration to the storage cost and efficiency. This paper proposes a model for electronic evidence storage, which uses directed acyclic graph to optimize the efficiency of on-chain storage of electronic evidence. Experimental results show that the proposed model is effective and practical.