Dual-Layer Index for Efficient Traceability Query of Food Supply Chain Based on Blockchain

【Author】 Guo, Chaopeng; Liu, Yiming; Na, Meiyu; Song, Jie

【Source】FOODS

【影响因子】5.561

【Abstract】Blockchain techniques have been introduced to achieve decentralized and transparent traceability systems, which are critical components of food supply chains. Academia and industry have tried to enhance the efficiency of blockchain-based food supply chain traceability queries. However, the cost of traceability queries remains high. In this paper, we propose a dual-layer index structure for optimizing traceability queries in blockchain, which consists of an external and an internal index. The dual-layer index structure accelerates the external block jump and internal transaction search while preserving the original characteristics of the blockchain. We establish an experimental environment by modeling the blockchain storage module for extensive simulation experiments. The results show that although the dual-layer index structure introduces a little extra storage and construction time, it significantly improves the efficiency of traceability queries. Specifically, the dual-layer index improves the traceability query rate by seven to eight times compared with that of the original blockchain.

【Keywords】traceability system; food supply chain; traceability query; blockchain; indexing

【发表时间】2023 5-Jun

【收录时间】2023-06-28

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-食品领域