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Volume 1, December
 
 

Blockchains, Volume 1, Issue 1 (September 2023) – 4 articles

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24 pages, 895 KiB  
Review
Review of Blockchain Applications in Food Supply Chains
by William George and Tareq Al-Ansari
Blockchains 2023, 1(1), 34-57; https://doi.org/10.3390/blockchains1010004 - 02 Sep 2023
Cited by 6 | Viewed by 2993
Abstract
Blockchain has found wide acceptance not just in the DeFi and Crypto space, but also in digital supply chains, non-monetary transactions, and governance. Amongst many, the food supply chain is riddled with lots of inefficiencies and untraceable corruption. Hence, many have investigated the [...] Read more.
Blockchain has found wide acceptance not just in the DeFi and Crypto space, but also in digital supply chains, non-monetary transactions, and governance. Amongst many, the food supply chain is riddled with lots of inefficiencies and untraceable corruption. Hence, many have investigated the integration of blockchain technology into the food system. This paper discusses the major advancement in blockchain technology from the aspect of food security and proposes roadmaps for future applications in businesses. We dive into the different pillars of food security and how blockchains can play a valuable role in the technology infrastructure of food security in a holistic sense. Next, the paper also discusses the organizational, economic, and management aspects of technology adoption. Finally, we end by discussing the nexus between Blockchain and Decentralized Autonomous Organizations (DAO), as well as Digital Twins, respectively. Full article
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15 pages, 1153 KiB  
Review
Recommendation Systems for the Metaverse
by Lingwen Wei, Xutian Wang, Ting Wang, Zhilan Duan, Yan Hong, Xiaoming He and Huawei Huang
Blockchains 2023, 1(1), 19-33; https://doi.org/10.3390/blockchains1010003 - 24 Aug 2023
Cited by 3 | Viewed by 1504
Abstract
The metaverse, a virtual world closely intertwined with reality, represents the next-generation form of the Internet and encompasses advanced sociability and interaction. With the rapid growth of users and virtual products within this environment, the importance of recommendation systems becomes paramount. This article [...] Read more.
The metaverse, a virtual world closely intertwined with reality, represents the next-generation form of the Internet and encompasses advanced sociability and interaction. With the rapid growth of users and virtual products within this environment, the importance of recommendation systems becomes paramount. This article presents a comprehensive survey that examines the technologies influencing the development of recommendation systems tailored for the metaverse. Firstly, we identify the key trends and fundamental concepts associated with these systems. Secondly, we delve into the core supporting technologies and application scenarios within metaverse recommendation systems. Lastly, we provide insights into future research directions for this rapidly evolving field. Our survey reveals that while progress has been achieved, further investigation is necessary to optimize the technical layout and content of metaverse recommendation systems. Full article
(This article belongs to the Special Issue Feature Papers in Blockchains)
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16 pages, 1740 KiB  
Review
A Review of Approaches for Detecting Vulnerabilities in Smart Contracts within Web 3.0 Applications
by Hui Li, Ranran Dang, Yao Yao and Han Wang
Blockchains 2023, 1(1), 3-18; https://doi.org/10.3390/blockchains1010002 - 23 Aug 2023
Cited by 1 | Viewed by 2274
Abstract
Smart contracts, programs running on a blockchain, play a crucial role in driving Web 3.0 across a variety of domains, such as digital finance and future networks. However, they currently face significant security vulnerabilities that could result in potential risks and losses. This [...] Read more.
Smart contracts, programs running on a blockchain, play a crucial role in driving Web 3.0 across a variety of domains, such as digital finance and future networks. However, they currently face significant security vulnerabilities that could result in potential risks and losses. This paper outlines the inherent vulnerabilities of smart contracts, both those typical of their applications and those unique to Web 3.0 applications. We then systematically classify the techniques based on their core approach to detecting vulnerabilities in smart contracts. Using these approaches, we conduct a comparative analysis of existing tools in terms of their vulnerability coverage, detection effectiveness, open-source availability, and integration capabilities. Finally, we present the Co-Governed Sovereignty Multi-Identifier Network (CoG-MIN) as a case study to demonstrate the significance of smart contract application security in establishing a community with a shared future in cyberspace during the Web 3.0 era and anticipate future research directions with challenges. To conclude, this study addresses the gap in integrating existing smart contract security research with the advancement of Web 3.0 development, while also providing recommendations for future research directions. Full article
(This article belongs to the Special Issue Feature Papers in Blockchains)
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2 pages, 189 KiB  
Editorial
Introduction to a New Open Access Journal Published by MDPI: Blockchains
by Keke Gai and Liehuang Zhu
Blockchains 2023, 1(1), 1-2; https://doi.org/10.3390/blockchains1010001 - 01 Feb 2023
Viewed by 1984
Abstract
Blockchain, one of the representative technologies of Web 3 [...] Full article
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