Research on Blockchain Architecture and Operating Principles Based on H-DAG

A hybrid blockchain structure (hybrid directed acyclic graph, or H-DAG) is proposed in this article to solve the existing problem of architectures using symmetric key encryption technology by combining characteristics single-chain blockchains and DAG distributed ledgers. By improving block transaction structures optimizing consensus mechanism, H-DAG confirmed orders while maintaining high-throughput a DAG, thus solving order dependence problem. We introduced lightweight PoW mechanism improve anti-fork ability blockchain. An incentive was adopted our model compel honest nodes be more enthusiastic about participating in, maintaining, enhancing security given network. The states achieved strong levels consistency, their confirmation times were predictable. evaluated performance comparing analyzing multiple experiments, we modeled forking attack strategy, verifying resistance strategy. experimental results demonstrated that transactions globally consistent, time improved enhanced ensure degree decentralization system. Therefore, system throughput technology.