Visual Analysis Method of Blockchain Community Evolution Based on DPoS Consensus Mechanism

Abstract

DPoS (delegated proof of stake) is one of the current mainstream blockchain consensus mechanisms,and the unique node election mechanism makes it form an evolving blockchain community.Analyzing the evolution model of the blockchain community can discover the potential risks of the consensus mechanism,which has very important research significance.For the DPoS consensus mechanism blockchain data,a novel combination analysis method of the consensus mechanism effectiveness is proposed,and a set of visual analysis methods are designed to help users analyze the evolutionary model of the blockchain community from multiple angles.First,it quantifies the difference between the degree of completion of the work and the voting ranking before and after the node ranking change and analyzes the selection efficiency and incentive efficiency of the consensus mechanism;then,it focuses on the combined efficiency of the consensus mechanism,the evolution of the geographical distribution of nodes,and the comparison of the evolutionary differences between nodes and designs visual views and interactive means;finally,it designs and implements a visual analysis system of blockchain community evolution based on the DPoS consensus mechanism based on the real data of the EOS main chain and verifies the usability and effectiveness of this method through case studies and expert evaluation.

Keywords

• blockchain|dpos|community evolution|consensus mechanism|visual analysis