Blockchain and its derived technologies shape the future generation of digital businesses: a focus on decentralized finance and the Metaverse

Without a doubt,blockchain,as one of the most valuable technological advancements,has been introduced over the past decade and has played a significant role in the industrial revolution.The emergence of other technologies derived from blockchain,such as decentralized finance(DeFi)and the Metaverse,has fundamentally transformed people’s daily lives and profoundly impacted future versions of digital businesses.This study explored the evolution of digital businesses in the near future,with a specific focus on the two primary technologies mentioned above.First,we reviewed DeFi-based technologies,including GameFi,SciFi,SocialFi,and others which serve as foundational building blocks for future jobs and businesses.Second,we examined Metaverse-based jobs,such as Metaverse-based academies and markets which are expected to be launched as commonly used businesses.Ultimately,this study provides several guidelines,such as how to use DeFi 2.0 and apply centralized decentralized finance(CeDeFi)-based platforms.Additionally,it offers future directions for launching these businesses,including controlling the progress of artificial intelligence(AI)in practical applications,utilizing cloud-assisted models for the Metaverse,and providing conditional privacy for future Metaverse-based businesses.

Blockchain-based reporting protocols as a collective monitoring mechanism in DAOs

As a recent decentralized business model,Distributed Autonomous Organization(DAO)challenges the management paradigms of conventional organizations and represents the future of democracy-based systems.However,DAOs are facing challenges that can be divided into two categories,including policy-based and technical challenges.Detecting misbehaving nodes is a crucial challenge that is considered in both categories.Designing mechanisms to report malicious behaviors while maintaining anonymity is essential for the survival and efficiency of DAOs.In this paper,we clarify the problem,and introduce Blockchain-Based Anonymous Reporting(BBAR)as a collective monitoring mechanism in DAOs with its requirements and implementation methods.

ACR-MLM:a privacy-preserving framework for anonymous and confidential rewarding in blockchain-based multi-level marketing

Network marketing is a trading technique that provides companies with the opportunity to increase sales.With the increasing number of Internet-based purchases,several threats are increasingly observed in this field,such as user privacy violations,company owner(CO)fraud,the changing of sold products’information,and the scalability of selling networks.This study presents the concept of a blockchain-based market called ACR-MLM that functions based on the multi-level marketing(MLM)model,through which registered users receive anonymous and confidential rewards for their own and their subgroups’sales.Applying a public blockchain as the ACR-MLM framework’s infrastructure solves existing problems in MLM-based markets,such as CO fraud(against the government or its users),user privacy violations(obtaining their real names or subgroup users),and scalability(when vast numbers of users have been registered).To provide confidentiality and scalability to the ACR-MLM framework,hierarchical identity-based encryption(HIBE)was applied with a functional encryption(FE)scheme.Finally,the security of ACR-MLM is analyzed using the random oracle(RO)model and then evaluated.