Blockchains Pub Date : 2024-07-21 DOI: 10.3390/blockchains2030013

Shezon Saleem Mohammed Abdul

{"title":"Navigating Blockchain’s Twin Challenges: Scalability and Regulatory Compliance","authors":"Shezon Saleem Mohammed Abdul","doi":"10.3390/blockchains2030013","DOIUrl":"https://doi.org/10.3390/blockchains2030013","url":null,"abstract":"Blockchain technology promises transformative potential across diverse sectors, facilitating innovations in areas ranging from finance to healthcare. Despite its many promising applications, several barriers—including scalability challenges, regulatory complexities, and technical hurdles—limit its widespread adoption. This systematic literature review delves into scalability enhancements and explores the legal and regulatory landscapes impacting blockchain deployment in ten key sectors: IoT, healthcare, finance, education, social media, genomics, supply chain, vehicular networks, e-voting, and tourism. These sectors were selected based on their significant engagement with blockchain technology and their prominence in the analyzed literature. We examine key technological advancements such as Layer-2 techniques, sharding, consensus algorithm optimization, and rollups, and discuss their implications for throughput, latency, and compliance with regulatory standards such as the General Data Protection Regulation (GDPR). The review details these technological and regulatory developments and discusses their broader implications for industry and academia, emphasizing the need for interdisciplinary research and innovation. By identifying gaps in current research and suggesting future directions, this study serves as a roadmap for researchers, practitioners, and policymakers to develop secure, scalable, and compliant blockchain systems. Our comprehensive examination provides valuable insights into enhancing the efficiency, security, and regulatory compliance of blockchain technology.","PeriodicalId":472341,"journal":{"name":"Blockchains","volume":"59 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141818043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blockchain Technology Application Domains along the E-Commerce Value Chain—A Qualitative Content Analysis of News Articles 电子商务价值链上的区块链技术应用领域--对新闻报道的定性内容分析

Blockchains Pub Date : 2024-07-12 DOI: 10.3390/blockchains2030012

J. Witt, M. Schoop

引用次数: 0

Supply-Blockchain Functional Prototype for Optimizing Port Operations Using Hyperledger Fabric 利用超级账本结构优化港口运营的供应链功能原型

Blockchains Pub Date : 2024-07-11 DOI: 10.3390/blockchains2030011

B. Alkhaldi, A. Al-Omary

{"title":"Supply-Blockchain Functional Prototype for Optimizing Port Operations Using Hyperledger Fabric","authors":"B. Alkhaldi, A. Al-Omary","doi":"10.3390/blockchains2030011","DOIUrl":"https://doi.org/10.3390/blockchains2030011","url":null,"abstract":"Supply chain bottlenecks in port operations lead to significant delays and inefficiencies. Blockchain technology emerges as a viable solution, offering tamper-resistant ledgers, secure transactions, and automation capabilities. While considerable research on developing blockchain-based solutions currently exist, there is a lack of studies that specifically focus on optimizing port document management to speed up supply chain operations. In this paper, a supply-blockchain functional prototype for optimizing port operations using Hyperledger Fabric is introduced. In terms of core functionality, the prototype allows initiation of smart contract corresponding to functions such as creating and editing port-related documents, minimizing manual interventions and enhancing efficiency to reduce port congestion. Furthermore, it provides live tracking of completed events and transactions, facilitating transparency and streamlined oversight. The permissioned nature of Hyperledger Fabric ensures security and robust access controls, aligning well with sensitive port operations. Hyperledger Firefly and its connector framework was used as the middleware to facilitate blockchain integration and various functions of the prototype, while chaincode developed using Go language was used to package and deploy smart contracts. The supply-blockchain framework was used as the theoretical framework for prototype development, and agile project management was adopted to ensure timely completion. The results based on functional and performance testing demonstrate the prototype’s potential in alleviating port documentation bottlenecks and quickly delivering benefits to key stakeholders.","PeriodicalId":472341,"journal":{"name":"Blockchains","volume":"85 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141657926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Survey of Bug Bounty Programs in Strengthening Cybersecurity and Privacy in the Blockchain Industry 漏洞赏金计划在加强区块链行业网络安全和隐私方面的作用调查

Blockchains Pub Date : 2024-07-08 DOI: 10.3390/blockchains2030010

Junaid Arshad, Muhammad Talha, Bilal Saleem, Zoha Shah, Huzaifa Zaman, Zia Muhammad

{"title":"A Survey of Bug Bounty Programs in Strengthening Cybersecurity and Privacy in the Blockchain Industry","authors":"Junaid Arshad, Muhammad Talha, Bilal Saleem, Zoha Shah, Huzaifa Zaman, Zia Muhammad","doi":"10.3390/blockchains2030010","DOIUrl":"https://doi.org/10.3390/blockchains2030010","url":null,"abstract":"The increasing reliance on computer networks and blockchain technology has led to a growing concern for cybersecurity and privacy. The emergence of zero-day vulnerabilities and unexpected exploits has highlighted the need for innovative solutions to combat these threats. Bug bounty programs have gained popularity as a cost-effective way to crowdsource the task of identifying vulnerabilities, providing a secure and efficient means of enhancing cybersecurity. This paper provides a comprehensive survey of various free and paid bug bounty programs in the computer networks and blockchain industry, evaluating their effectiveness, impact, and credibility. The study explores the structure, incentives, and nature of vulnerabilities uncovered by these programs, as well as their unique value proposition. A comparative analysis is conducted to identify advantages and disadvantages, highlighting the strengths and weaknesses of each program. The paper also examines the role of ethical hackers in bug bounty programs and their contributions to strengthening cybersecurity and privacy. Finally, the study concludes with recommendations for addressing the challenges faced by bug bounty programs and suggests potential future directions to enhance their impact on computer networks and blockchain security.","PeriodicalId":472341,"journal":{"name":"Blockchains","volume":" 855","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141668871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Situ-Oracle: A Learning-Based Situation Analysis Framework for Blockchain-Based IoT Systems Situ-Oracle：基于学习的区块链物联网系统态势分析框架

Blockchains Pub Date : 2024-05-22 DOI: 10.3390/blockchains2020009

Hongyi Bian, Wensheng Zhang, Carl K. Chang

{"title":"Situ-Oracle: A Learning-Based Situation Analysis Framework for Blockchain-Based IoT Systems","authors":"Hongyi Bian, Wensheng Zhang, Carl K. Chang","doi":"10.3390/blockchains2020009","DOIUrl":"https://doi.org/10.3390/blockchains2020009","url":null,"abstract":"The decentralized nature of blockchain enables data traceability, transparency, and immutability as complementary security features to the existing Internet of Things (IoT) systems. These Blockchain-based IoT (BIoT) systems aim to mitigate security risks such as malicious control, data leakage, and dishonesty often found in traditional cloud-based, vendor-specific IoT networks. As we steadily advance into the era of situation-aware IoT, the use of machine learning (ML) techniques has become essential for synthesizing situations based on sensory contexts. However, the challenge to integrate learning-based situation awareness with BIoT systems restricts the full potential of such integration. This is primarily due to the conflicts between the deterministic nature of smart contracts and the non-deterministic nature of machine learning, as well as the high costs of conducting machine learning on blockchain. To address the challenge, we propose a framework named Situ-Oracle. With the framework, a computation oracle of the blockchain ecosystem is leveraged to provide situation analysis as a service, based on Recurrent Neural Network (RNN)-based learning models tailored for the Situ model, and specifically designed smart contracts are deployed as intermediary communication channels between the IoT devices and the computation oracle. We used smart homes as a case study to demonstrate the framework design. Subsequently, system-wide evaluations were conducted over a physically constructed BIoT system. The results indicate that the proposed framework achieves better situation analysis accuracy (above 95%) and improves gas consumption as well as network throughput and latency when compared to baseline systems (on-chain learning or off-chain model verification). Overall, the paper presents a promising approach for improving situation analysis for BIoT systems, with potential applications in various domains such as smart homes, healthcare, and industrial automation.","PeriodicalId":472341,"journal":{"name":"Blockchains","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141111106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blockchain for Organ Transplantation: A Survey 区块链用于器官移植：一项调查

Blockchains Pub Date : 2024-05-09 DOI: 10.3390/blockchains2020008

Elif Calik, Malika Bendechache

引用次数: 0

Information Sharing in Land Registration Using Hyperledger Fabric Blockchain 使用 Hyperledger Fabric 区块链实现土地登记中的信息共享

Blockchains Pub Date : 2024-04-16 DOI: 10.3390/blockchains2020006

Reyan M. Zein, H. Twinomurinzi

{"title":"Information Sharing in Land Registration Using Hyperledger Fabric Blockchain","authors":"Reyan M. Zein, H. Twinomurinzi","doi":"10.3390/blockchains2020006","DOIUrl":"https://doi.org/10.3390/blockchains2020006","url":null,"abstract":"Blockchain technology is increasingly being recognized for its pivotal role in enhancing security, immutability, and transparency across government sectors, notably in land registration (LR) processes. This research emphasizes the need for contextually adapted blockchain technology solutions, particularly in resource-constrained and culturally diverse settings. Utilizing the elaborated action design research method, this study presents a Hyperledger-based blockchain technology system tailored for Sudan’s LR, addressing technical challenges, evaluation frameworks, privacy measures, and deployment strategies. This system not only facilitates secure and transparent land transactions from planning to certificate issuance, but also integrates the management of land sales, significantly reducing the need for intermediaries. By providing a detailed exploration of the system’s goals, technical hurdles, and practical deployment insights, this research contributes valuable knowledge to the implementation of blockchain technology in LR, with findings that are applicable to similar contexts globally. This study underscores the importance of customizing blockchain solutions to meet the unique requirements of different environments, thereby advancing digital government in resource-constrained settings.","PeriodicalId":472341,"journal":{"name":"Blockchains","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decision Model to Design Trust-Focused and Blockchain-Based Health Data Management Applications 设计以信任为重点、基于区块链的健康数据管理应用的决策模型

Blockchains Pub Date : 2024-04-09 DOI: 10.3390/blockchains2020005

Christina Erler, Ann-Marit Bauer, Friedrich Gauger, Wilhelm Stork

引用次数: 0

Decision Tree-Based Federated Learning: A Survey 基于决策树的联合学习：调查

Blockchains Pub Date : 2024-03-07 DOI: 10.3390/blockchains2010003

Zijun Wang, Keke Gai

引用次数: 0

Zk-SNARKs-Based Anonymous Payment Channel in Blockchain 区块链中基于 Zk-SNARKs 的匿名支付渠道

Blockchains Pub Date : 2024-02-05 DOI: 10.3390/blockchains2010002

Yunwei Guo, Haochen Liang, Liehuang Zhu, Keke Gai

引用次数: 0

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