In this study, we propose PRETRUST, a new framework to address the problem of the efficiency of payment process based on blockchain systems. PRETRUST is based on the thoughts of consortium chains, supporting fast payments. To make parties address transactions efficiently and scale out the capacity, the main strategy is based on the guarantee mechanism and shard technology with a random arrangement of transactions and consensus groups. In PRETRUST, the guarantee process replaces the verification of a transaction on-chain to realize the optimization of efficiency. And the model of a trusted execution environment is utilized in the interactions between PRETRUST and public systems. Throughout the paper, we discuss several transaction scenarios and analyze the security, which shows that PRETRUST can guarantee security.

翻译：在这项研究中,我们建议建立一个新的框架,以解决基于供应链系统的付款过程效率问题,PRETRUST以财团链的想法为基础,支持快速付款,使当事方高效率地处理交易和扩展能力,主要战略以担保机制和散装技术为基础,并随机安排交易和共识小组。在PRETRUST,担保程序取代了对链上交易的核查,以实现效率的优化。在PRETRET和公共系统的互动中,利用了可信赖的执行环境模式。我们在整个文件中讨论了若干交易方案并分析安全情况,这表明PRETRUST可以保证安全。