Design and Optimization of Heterogeneous Blockchain Network Model Based on Relay Chain

There are still problems for the existing solutions for heterogeneous blockchain networking, such as excessive centralization, complex and difficult implementation and maintenance of heterogeneous chain cross-chain architecture, and insufficient performance in large-scale heterogeneous blockchain networking scenarios. This paper proposes a flexible cross-chain gateway plug-in mechanism, which can adapt to different types of heterogeneous blockchain access, simplify the access process of the chain construction, greatly reduces the access cost of the heterogeneous chain and the maintenance difficulty of the connected blockchain and improves the scalability of the networking model. Aiming at the problem of insufficient performance in the large-scale heterogeneous blockchain networking scenario, this paper introduces the two-layer extended Rollup technology in a single chain, and at the same time adapts to the characteristics of heterogeneous chain transactions to further improve the performance of the networking model.