Research On Consensus Mechanism For Anti-Mining Concentration

The traditional centralized mode,data and information are centrally managed by the centralized server,thus leading to the reliability and credibility issues.The blockchain technology effectively solves these problems.However,there are still many shortcomings in the development of blockchain technology.For example,the drawbacks of the POW consensus mechanism used by bitcoin are exploited by interest groups.Interest groups set up the mining pool and monopolized the power and block casting rights.This behavior runs counter to the original intention of blockchain technology,but also exposes the blockchain network to a 51%risk.The problem of pool concentration has become the main problem restricting the development of blockchain technology.Based on the analysis of the existing consensus mechanism of blockchain,this paper proposes a POWS mechanism based on the adjustment of workload.The core idea of POWS consensus mechanism is to introduce the concept of currency age into POW consensus mechanism to adjust the difficulty of mining different nodes.POWS consensus mechanism adjusts the difficulty of mining by calculating the power and currency age.The POWS Consensus Mechanism reduces the impact of counting power or currency age on the efficiency of block-outs when a single factor accumulates in large numbers.The POWS Consensus Mechanism reduces the profit-driven nature of the mine pool to common nodes.At the same time,the computing power and currency age two factors will also increase the cost of mining operations.This article compares the POWS consensus mechanism with the POW and the POS consensus mechanism from the aspects of basic performance and resistance to mine pool.The experimental results show that the POWS consensus mechanism can meet the performance requirements of normal blockchain systems and reduce the effect of calculating power or currency age on the block generation efficiency and reducing the gap in the efficiency of block production between mine pool nodes and reducing the profit drive of the mine pool to non-mine pool nodes.