DVIT—A Decentralized Virtual Items Trading Forum with Reputation System

Zuobin Ying (), Wusong Lan, Chen Deng, Lu Liu and Ximeng Liu
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Zuobin Ying: Faculty of Data Science, City University of Macau, Macau, China
Wusong Lan: Faculty of Data Science, City University of Macau, Macau, China
Chen Deng: National Institute of Education (NIE), Nanyang Technological University, Singapore 637616, Singapore
Lu Liu: Faculty of Finance, City University of Macau, Macau, China
Ximeng Liu: College of Computer and Data Science, Fuzhou University, Fuzhou 350025, China

Mathematics, 2023, vol. 11, issue 2, 1-23

Abstract: The metaverse provides us with an attractive virtual space in which the value of the virtual property has been increasingly recognized. However, the lack of effective cross-metaverse trading tools and the reputation guarantee makes it difficult to trade items among different metaverses. To this end, a decentralized reputation system for virtual items trading forum named DVIT is devised. To the best of our knowledge, DVIT is the first decentralized cross-metaverse item trading prototype inspired by the online-game trading system. We designed the corresponding transaction function and realized the autonomous governance of the community by introducing the reputation mechanism. An improved election mechanism is proposed to improve efficiency based on Delegated Proof-of-Stake (DPoS). Through token rewards associated with activity levels, users’ motivation can be stimulated. The experiments indicate that our proposed scheme could dynamically measure the trustworthiness degree of the users through the dynamic reputation value and thereby exclude malicious users from the blockchain within 20 epochs.

Keywords: metaverse; blockchain; DPoS; video games; virtual economy; virtual worlds (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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