公开(公告)号：US20220309080A1

公开(公告)日：2022-09-29

申请号：US17455502

申请日：2021-11-18

Applicant: Huazhong University of Science and Technology

Inventor： Jiang XIAO ,  Jian CHANG ,  Rui HAN ,  Xiaohai DAI ,  Hai JIN

IPC: G06F16/28 ,  G06F16/2457 ,  G06F16/248 ,  G06Q20/38

Abstract: The present invention relates a method for high-performance traceability query oriented to multi-chain data association, comprising: identifying a target transaction needing the traceability query; searching out all corresponding target chains based on cross-chain transaction data association; making query requests parallelly; and executing the query among the target chains according to a key value of the target transaction and returning query results. The blockchain traceability query method proposed by the present invention is different from serialized block data query conducted in the chain-type structure, and the disclosed cross-chain query operation can be parallelly executed, leading to improved efficiency of traceability query. Opposite to the conventional blockchain where blocks are used as nodes of chains, the present invention directly uses sub blockchains as nodes of the SRB. Since sub blockchains can be dynamically added or removed, the present invention enhances the scalability of the entire system.