{"type":"ScholarlyArticle","title":"SEBF: A Single-Chain based Extension Model of Blockchain for Fintech","authors":[{"name":"Yimu Ji","slug":"yimu-ji","given":"Yimu","family":"Ji","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China; Nanjing Center of HPC China , Nanjing , China; Jiangsu HPC and Intelligent Processing Engineer Research Center , Nanjing , China"},{"name":"Weiheng Gu","slug":"weiheng-gu","given":"Weiheng","family":"Gu","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China"},{"name":"Fei Chen","slug":"fei-chen","given":"Fei","family":"Chen","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China"},{"name":"Xiaoying Xiao","slug":"xiaoying-xiao","given":"Xiaoying","family":"Xiao","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China"},{"name":"Jing Sun","slug":"jing-sun","given":"Jing","family":"Sun","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China"},{"name":"Shangdong Liu","slug":"shangdong-liu","given":"Shangdong","family":"Liu","affiliation":"School of Computer Science , Nanjing University of Posts and Telecommunications , Nanjing , China; Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks , Nanjing , China; Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China; Nanjing Center of HPC China , Nanjing , China; Jiangsu HPC and Intelligent Processing Engineer Research Center , Nanjing , China"},{"name":"Jing He","slug":"jing-he","given":"Jing","family":"He","affiliation":"Institute of Information Technology , Nanjing University of Finance and Economics , Nanjing , China; School of Software and Electrical Engineering , Swinburne University of Technology , Hawthorn , Aus - tralia"},{"name":"Yunyao Li","slug":"yunyao-li","given":"Yunyao","family":"Li","affiliation":"Institute of Information Technology , Nanjing University of Finance and Economics , Nanjing , China"},{"name":"Kaixiang Zhang","slug":"kaixiang-zhang","given":"Kaixiang","family":"Zhang","affiliation":"WeBank Co., Ltd. , Shenzhen , China"},{"name":"Fen Mei","slug":"fen-mei","given":"Fen","family":"Mei","affiliation":"WeBank Co., Ltd. , Shenzhen , China"},{"name":"Fei Wu","slug":"fei-wu","given":"Fei","family":"Wu","affiliation":"Institue of High Performance Computing and Bigdata , Nanjing University of Posts and Telecommuni- cations , Nanjing , China; Nanjing Center of HPC China , Nanjing , China; Jiangsu HPC and Intelligent Processing Engineer Research Center , Nanjing , China; College of Automation , Nanjing University of Posts and Telecommunications , Nanjing , China"}],"abstract":"The traditional blockchain has the shortcoming that a single-chain can only deal with one or a few specific data types. The research question of how to make blockchain be able to deal with various data types has not been well studied. In this paper, we propose a single-chain based extension model of blockchain for fintech (SEBF). In the financial environment, we design a four-layer architecture for this model. By employing the external trusted or-acle group and a financial regulator agency, a variety types of data can be effectively stored in the blockchain, such that the data type extension based on a single-chain is realized. The experimental results indicate that the proposed model can improve the efficiency of simplified payment verifi-cation.","doi":"10.24963/ijcai.2020/620","url":"https://ijcai.org/proceedings/2020/620","pdf":"https://ijcai.org/proceedings/2020/0620.pdf","markdown":"https://ijcai.org/proceedings/2020/620.md","bibtex":"https://ijcai.org/proceedings/2020/bibtex/620","volume":{"slug":"2020","title":"Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2020","url":"https://ijcai.org/proceedings/2020/","year":2020,"location":"Yokohama","dates":"January 2021 (postponed from 11-17 July 2020)","editors":"Christian Bessiere","isbn":"978-0-9992411-6-5","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2020"},"section":"Special Track on AI in FinTech","track":"Special Track on AI in FinTech","number":620,"pages":{"first":4497,"last":4505},"keywords":["AI for lending: AI for blockchain","AI for banking: General"],"videos":[{"label":"Video","url":"https://videos.ijcai20.org/24298/file_24298.m3u8","length_sec":291,"provider":"hls"}],"references":[{"position":1,"raw":"[Abdur Rahman et al., 2019] Md Abdur Rahman, George Loukas, Syed Maruf Abdullah, Areej Abdu, Syed Sadiqur Rahman, Elham Hassanain, Yasmine Arafa. 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