Efficient parallel blockchain based on directed acyclic graph

Journal of Shanghai Normal University (Natural Sciences)

卷:51

HU Jun¹  HONG Xuan¹ 

[1] College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 201418, China;

关键词: distributed ledger;    blockchain;    parallel blockchain;    directed acyclic graph (dag);    consensus protocol;   

DOI  :  10.3969/J.ISSN.1000-5137.2022.02.002

来源: DOAJ

【 摘 要 】

The promotion and application was restricted by the performance of blockchain system, which mainly manifested in low transaction throughput, long transaction confirmation time and waste of computing power. To solve these problems, a blockchain based on directed acyclic graph (DAG) and its consensus protocol was proposed to provide a parallel work mode of blockchain. Three pointers were used to provide the connectivity of DAG blocks. Block order and system security were guaranteed by forming a main chain of difficult blocks through the use of proof-of-work (PoW) mechanism. Aconsensus protocol on the main chain was formulated according to the longest chain principle and the hardest chain principle. This scheme made full use of computing resources of network nodes which improved the performance of blockchain system and reduced computing redundancy and computing power.

【 授权许可】

Unknown