? CoC: A Unified Distributed Ledger Based Supply Chain Management System
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Journal of Computer Science and Technology 2018, Vol. 33 Issue (2) :237-248    DOI: 10.1007/s11390-018-1816-5
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CoC: A Unified Distributed Ledger Based Supply Chain Management System
Zhimin Gao1, Member, IEEE, Lei Xu1, Lin Chen1, Xi Zhao2, Member, IEEE, Yang Lu1, Weidong Shi1, Member, IEEE
1 Department of Computer Science, University of Houston, Houston, Texas 77204-3010, U.S.A;
2 School of Management, Xi'an Jiaotong University, Xi'an 710049, China

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Abstract Modern supply chain is a complex system and plays an important role for different sectors under the globalization economic integration background. Supply chain management system is proposed to handle the increasing complexity and improve the efficiency of flows of goods. It is also useful to prevent potential frauds and guarantee trade compliance. Currently, most companies maintain their own IT systems for supply chain management. However, it is hard for these isolated systems to work together and provide a global view of the status of the highly distributed supply chain system. Using emerging decentralized ledger/blockchain technology, which is a special type of distributed system in essence, to build supply chain management system is a promising direction to go. Decentralized ledger usually suffers from low performance and lack of capability to protect information stored on the ledger. To overcome these challenges, we propose CoC (supply chain on blockchain), a novel supply chain management system based on a hybrid decentralized ledger with a novel twostep block construction mechanism. We also design an efficient storage scheme and information protection method that satisfy requirements of supply chain management. These techniques can also be applied to other decentralized ledger based applications with requirements similar to supply chain management.
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Keywordsblockchain   distributed system   supply chain management   security     
Received 2017-07-09;
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This material is based upon the work supported by the U.S. Department of Homeland Security (DHS) under Grant Award No. 2015-ST-061-BSH001 and the National Nature Science Foundation of China under Grant No. 91746111.

About author: Zhimin Gao received his B.S. degree in software engineering from South China Agricultural University, Guangzhou, in 2009, and his Ph.D. degree in computer science from University of Houston, Houston, in 2017. He is currently working as a post-doctoral fellow at University of Houston, Houston. His research interests include blockchain, high-performance computing and cloud computing
Cite this article:   
Zhimin Gao, Lei Xu, Lin Chen, Xi Zhao, Yang Lu, Weidong Shi.CoC: A Unified Distributed Ledger Based Supply Chain Management System[J]  Journal of Computer Science and Technology, 2018,V33(2): 237-248
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