From Blockchain to Web3 & Metaverse

The Metaverse seamlessly integrates the real world with the virtual world and allows avatars to engage in a broad range of activities including entertainment, social networking, and trading. In this book, we dive into the Metaverse by discussing how blockchains connect various Metaverse components, digital currencies, and blockchain-empowered applications in the virtual world. On the other hand, Web3 has also attracted considerable attention due to its uniquely decentralized characteristics. The digital economy, currently undergoing a rapid development, is a critical driver to highly efficient societies. It is imperative that we investigate how to use Web3 technologies to address the critical concerns encountered during the development of the digital economy by fully exploring Web3. In this book, we also share insights into the Web3-based ecosystem in the Metaverse; topics of interest include decentralized finance, digital assets, the asset-trading market, etc.

Unlike most works on the subject, this book mainly concentrates on insights and discussions regarding blockchain, the Metaverse and Web3. In other words, it focuses on using blockchain technologies to enable an ecosystem for both the Metaverse and Web3. Topics addressed include blockchain fundamentals, smart contracts, value circulation in the Metaverse, the connection between the Metaverse and Web3, the establishment of the Metaverse on the basis of blockchain technologies, decentralized autonomous organization, decentralized storage, digital economy, Web3-based economic systems for the Metaverse, etc.

This book will be a valuable resource for students, researchers, engineers, and policymakers working in various areas related to blockchain, the Metaverse and Web3. We hope that it will also inspire readers from academia and industry alike, and ultimately help them create a truly open, fair, and rational ecosystem for the Metaverse and Web3.

「元宇宙」無縫地將現實世界與虛擬世界整合在一起，讓虛擬角色能夠參與各種活動，包括娛樂、社交網絡和交易。在這本書中，我們深入探討了元宇宙的概念，討論了區塊鏈如何連接各種元宇宙組件、數字貨幣和在虛擬世界中使用區塊鏈技術的應用。另一方面，Web3也因其獨特的去中心化特性而受到了相當大的關注。當前正在快速發展的數字經濟是高效社會的關鍵驅動力。我們迫切需要探討如何利用Web3技術來解決數字經濟發展過程中遇到的重要問題，通過充分探索Web3來實現這一目標。在這本書中，我們還分享了關於元宇宙中基於Web3的生態系統的見解；感興趣的主題包括去中心化金融、數字資產、資產交易市場等。

與大多數相關著作不同，這本書主要集中於關於區塊鏈、元宇宙和Web3的見解和討論。換句話說，它專注於使用區塊鏈技術為元宇宙和Web3建立一個生態系統。討論的主題包括區塊鏈基礎知識、智能合約、元宇宙中的價值流通、元宇宙與Web3之間的聯繫、基於區塊鏈技術建立元宇宙、去中心化自治組織、去中心化存儲、數字經濟、基於Web3的元宇宙經濟系統等。

這本書將成為從事與區塊鏈、元宇宙和Web3相關領域的學生、研究人員、工程師和政策制定者的寶貴資源。我們希望它也能激發學術界和工業界的讀者，最終幫助他們創建一個真正開放、公平和理性的元宇宙和Web3生態系統。

Huawei Huang (Senior Member, IEEE) earned his Ph.D. degree in Computer Science and Engineering from the University of Aizu, Japan, in 2016. He is currently an Associate Professor at Sun Yat-sen University, China. His research interests include Blockchains, Web3, and Distributed Computing. He has worked as a research fellow of JSPS, a visiting scholar with Hong Kong Polytechnic University, a program-specific Assistant Professor with Kyoto University, Japan. He has served as a lead guest editor of a special issue on blockchains at IEEE Journal of Selected Areas in Communications (JSAC), and a lead guest editor of a special issue on Fusing Blockchain and AI with Metaverse at IEEE Open Journal of Computer Society (OJ-CS).

Jiajing Wu (Senior Member, IEEE) received the Ph.D. degree from Hong Kong Polytechnic University, Hong Kong, in 2014. She was a recipient of the Hong Kong PhD Fellowship Scheme during her Ph.D. study in Hong Kong (2010--2014). In 2015, she joined the Sun Yat-sen University, Guangzhou, China, where she is currently an Associate Professor. Her research focus includes blockchain, graph mining, network science. Dr. Wu has been invited to be the Associate Editor of IEEE Transactions on Circuits and Systems II, the Guest Editor of Chaos, Sensors, IEEE Journal on Emerging and Selected Topics in Circuits and Systems, and the organizer of several industry flagship conferences including IEEE ISCAS, CCF ICSS, and BlockSys.

Zibin Zheng (Fellow, IEEE) received the Ph.D. degree from The Chinese University of Hong Kong in 2011. He is currently a Full Professor with Sun Yat-sen University, Guangzhou, China. His research interests include service computing, software engineering, and blockchain. He was a recipient of the IBM Ph.D. Fellowship Award. He received the ACM SIGSOFT Distinguished Paper Award at the ICSE 2010 and the Best Student Paper Award at the ICWS 2010.

华为黄（高级会员，IEEE）于2016年从日本会津大学获得计算机科学与工程博士学位。他目前是中国中山大学的副教授。他的研究兴趣包括区块链、Web3和分布式计算。他曾担任JSPS的研究员、香港理工大学的访问学者以及日本京都大学的特聘助理教授。他还担任IEEE通信领域选定区域杂志（JSAC）区块链专刊的主编和IEEE计算机学会开放期刊（OJ-CS）融合区块链和人工智能与元宇宙专刊的主编。

吴佳静（高级会员，IEEE）于2014年从香港理工大学获得博士学位。她在香港攻读博士期间获得了香港博士研究奖学金。2015年，她加入中国广州中山大学，目前是副教授。她的研究重点包括区块链、图挖掘和网络科学。吴博士曾受邀担任IEEE电路与系统II交易、混沌、传感器、IEEE新兴和选定主题电路与系统杂志的副编辑，并组织了几个行业旗舰会议，包括IEEE ISCAS、CCF ICSS和BlockSys。

郑子斌（会士，IEEE）于2011年从香港中文大学获得博士学位。他目前是中国广州中山大学的教授。他的研究兴趣包括服务计算、软件工程和区块链。他曾获得IBM博士奖学金。他在2010年的ICSE会议上获得了ACM SIGSOFT杰出论文奖和ICWS 2010的最佳学生论文奖。