Blockchain-Research and Applications最新文献_第10页

The implications of blockchain-coordinated information sharing within a supply chain: A simulation study 区块链协同信息共享对供应链的影响：一项模拟研究

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-03-01 DOI: 10.1016/j.bcra.2022.100110

Aaliya Sarfaraz, Ripon K. Chakrabortty, Daryl L. Essam

{"title":"The implications of blockchain-coordinated information sharing within a supply chain: A simulation study","authors":"Aaliya Sarfaraz, Ripon K. Chakrabortty, Daryl L. Essam","doi":"10.1016/j.bcra.2022.100110","DOIUrl":"10.1016/j.bcra.2022.100110","url":null,"abstract":"<div><p>The profitability of a supply chain (SC) is proportional to the stability of all its stakeholders as well as their consistent information sharing with an effective and efficient communication mechanism. Various inefficiencies, such as the bullwhip effect (BWE) and product unavailability, may be caused by a lack of coordination in an SC. The importance of sharing consumer demand has been quantified by comprehensive studies under the assumption that all SC participants will access the same information. However, only a few studies have studied the effect of minimal coordination or limited visibility of information while considering their effect on the overall efficiency of an SC. This work primarily leverages blockchain technology (BCT) to create a simulation model. To do this, an SC BWE-based model is initially developed. Following that, a blockchain-based robust information sharing system is simulated. Furthermore, information sharing is challenging, and SC stakeholders may not really trust each other and hence be reluctant to share sensitive information. Considering that, this paper propose an improved proof-of-authority (PoA) consensus algorithm that will increase trust in a decentralized SC model. Multiple experiments are carried out to demonstrate the effectiveness of our approach, and the simulation results clearly demonstrate the effectiveness of information sharing in a supply chain via blockchain, as well as that trust between partners tends to increase overall SC efficiency and reduce BWE.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"4 1","pages":"Article 100110"},"PeriodicalIF":5.6,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45131484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Blockchain state channels with compact states through the use of RSA accumulators 通过使用RSA累加器实现具有紧凑状态的区块链状态通道

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-03-01 DOI: 10.1016/j.bcra.2022.100114

Lydia Negka , Angeliki Katsika , Georgios Spathoulas , Vassilis Plagianakos

引用次数: 1

Robust clustering of Ethereum transactions using time leakage from fixed nodes 使用固定节点的时间泄漏对以太坊事务进行稳健聚类

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-03-01 DOI: 10.1016/j.bcra.2022.100112

Congcong Yu , Chen Yang , Zheng Che , Liehuang Zhu

引用次数: 1

RecGuard: An efficient privacy preservation blockchain-based system for online social network users RecGuard：一个基于区块链的高效隐私保护系统，适用于在线社交网络用户

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-03-01 DOI: 10.1016/j.bcra.2022.100111

Samuel Akwasi Frimpong , Mu Han , Edward Kwadwo Boahen , Rexford Nii Ayitey Sosu , Isaac Hanson , Otu Larbi-Siaw , Isaac Baffour Senkyire

{"title":"RecGuard: An efficient privacy preservation blockchain-based system for online social network users","authors":"Samuel Akwasi Frimpong , Mu Han , Edward Kwadwo Boahen , Rexford Nii Ayitey Sosu , Isaac Hanson , Otu Larbi-Siaw , Isaac Baffour Senkyire","doi":"10.1016/j.bcra.2022.100111","DOIUrl":"10.1016/j.bcra.2022.100111","url":null,"abstract":"<div><p>Recommendation systems provide ease and convenience for users to address information overload problems while interacting with online platforms such as social media and e-commerce. However, it raises several questions about privacy, especially for users who prefer to remain anonymous, especially on online social networks (OSNs). Moreover, due to the commercialization of online users' data, some service providers sell users' data to third parties at the blind side of the users, which leads to trust issues between users and service providers. Such matters call for a system that gives online users much-needed control and autonomy of their data. With the advancement of blockchain technology, many research institutions are experimenting with decentralized technologies to resolve the OSN user dilemma of privacy intrusion against third parties and hacks. To resolve these limitations, we propose RecGuard, a privacy preservation blockchain-based network system. We developed two smart contracts, RG-SH and RG-ST, to ensure the security and privacy of user data. The RG-SH manages user data, whereas the RG-ST stores data. A graph convolutional network (GCN) was integrated with the blockchain-based system to detect malicious nodes. Finally, we implemented our framework prototype on a locally simulated network. The analysis and experiment results show that the proposed scheme demonstrates the effectiveness and privacy of users in our framework.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"4 1","pages":"Article 100111"},"PeriodicalIF":5.6,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44786471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Security and privacy of blockchain b区块链的安全和隐私

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-03-01 DOI: 10.1016/j.bcra.2023.100130

Meng Shen, Gaopeng Gou, Qi Xuan

引用次数: 0

Digital exchanges attributes and the risk of closure 数字交易所的属性和关闭风险

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2023-01-01 DOI: 10.1016/j.bcra.2023.100131

S. A. Lee, George Milunovich

引用次数: 0

LUCE: A blockchain-based data sharing platform for monitoring data License accoUntability and CompliancE LUCE:一个基于区块链的数据共享平台，用于监控数据许可证问责制和合规性

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2022-12-01 DOI: 10.1016/j.bcra.2022.100102

Visara Urovi , Vikas Jaiman , Arno Angerer , Michel Dumontier

{"title":"LUCE: A blockchain-based data sharing platform for monitoring data License accoUntability and CompliancE","authors":"Visara Urovi , Vikas Jaiman , Arno Angerer , Michel Dumontier","doi":"10.1016/j.bcra.2022.100102","DOIUrl":"10.1016/j.bcra.2022.100102","url":null,"abstract":"<div><p>Easy access to data is one of the main avenues to accelerate scientific research. As a key element of scientific innovations, data sharing allows the reproduction of results and helps prevent data fabrication, falsification, and misuse. Although the research benefits from data reuse are widely acknowledged, the data collections existing today are still kept in silos. Indeed, monitoring what happens to data once they have been handed to a third party is currently not feasible within the current data sharing practices. We propose a blockchain-based system to trace data collections and potentially create a more trustworthy data sharing process. In this paper, we present the LUCE (License accoUntability and CompliancE) architecture as a decentralized blockchain-based platform supporting data sharing and reuse. LUCE is designed to provide full transparency on what happens to the data after they are shared with third parties. The contributions of this work consist of i) the design of a decentralized data sharing solution with accountability and compliance by design and ii) the inclusion of a dynamic consent model for personalized data sharing preferences and for enabling legal compliance mechanisms. We test the scalability of the platform in a real-time environment where a growing number of users access and reuse different datasets. Compared to existing data sharing solutions, LUCE provides transparency over data sharing practices, enables data reuse, and supports regulatory requirements. The experimentation shows that the platform can be scaled for a large number of users.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"3 4","pages":"Article 100102"},"PeriodicalIF":5.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2096720922000434/pdfft?md5=ea1df2d18a61a88baf7526aad436b9a1&pid=1-s2.0-S2096720922000434-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90202563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

A blockchain architecture for industrial applications 用于工业应用的区块链架构

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2022-12-01 DOI: 10.1016/j.bcra.2022.100088

Lodovica Marchesi, Michele Marchesi, Roberto Tonelli, Maria Ilaria Lunesu

{"title":"A blockchain architecture for industrial applications","authors":"Lodovica Marchesi, Michele Marchesi, Roberto Tonelli, Maria Ilaria Lunesu","doi":"10.1016/j.bcra.2022.100088","DOIUrl":"10.1016/j.bcra.2022.100088","url":null,"abstract":"<div><p>Blockchain and the programs running on it, called smart contracts, are increasingly applied in all fields where trust and strong certifications are required. Our work focuses on industrial applications of blockchains and not on cryptocurrencies or tokens. We use frameworks to compare public and permissioned blockchains specifically suited for industrial applications. We also propose a complete solution based on Ethereum to implement a decentralized application, putting together in an original way, components and patterns already used and proven. This solution is characterized by a set of validator nodes running the blockchain using Proof-of-Authority or similar efficient consensus algorithms, by the use of an explorer enabling users to check the blockchain state, and the source code of the smart contracts running on it. From time to time, the hash digest of the last mined block is written into a public blockchain to guarantee immutability. The right to send transactions is granted by validator nodes to users by endowing them with the Ethers mined locally. Overall, the proposed approach has the same transparency and immutability as a public blockchain, largely reducing its drawbacks.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"3 4","pages":"Article 100088"},"PeriodicalIF":5.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209672092200029X/pdfft?md5=9aba8477435d25ab0a88e8eeb06eaef0&pid=1-s2.0-S209672092200029X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83253937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Integrating an academic management system with blockchain: A case study 学术管理系统与b区块链的整合:个案研究

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2022-12-01 DOI: 10.1016/j.bcra.2022.100099

Sérgio Guerreiro , João F. Ferreira , Tiago Fonseca , Miguel Correia

{"title":"Integrating an academic management system with blockchain: A case study","authors":"Sérgio Guerreiro , João F. Ferreira , Tiago Fonseca , Miguel Correia","doi":"10.1016/j.bcra.2022.100099","DOIUrl":"10.1016/j.bcra.2022.100099","url":null,"abstract":"<div><p>This paper reports the design, implementation, and experimental phases of the EU H2020 QualiChain pilot “Staffing the Public Sector—The Case of Portugal”. The overall purpose of this pilot is to ensure the authenticity and integrity of the diplomas for all involved stakeholders and therefore to contribute to solving the diploma counterfeiting and/or falsification that is a great threat to the recruitment of qualified personnel. The main innovative aspect of this solution is the integration that is offered between an Academic Management System (the Fenix.edu platform) and a Blockchain (Ethereum) to automatically deploy diplomas. This solution helps the involved stakeholders trust the diplomas provided. The case study involves four different stakeholders and studies, specifically, the increase in their satisfaction in terms of diploma control, diploma veracity, and diploma credibility. The developed system was tested with external participants who were asked to follow a set of guidelines and complete a survey to assess their perceptions. All system interactions were recorded, and the data were analyzed. The results indicated that the participants successfully executed the guidelines and that a perception increase toward diploma control, veracity, and credibility was identified.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"3 4","pages":"Article 100099"},"PeriodicalIF":5.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2096720922000409/pdfft?md5=6715fede97e2dadfa4be374d0b9fb901&pid=1-s2.0-S2096720922000409-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42085310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

A collaboration strategy in the mining pool for proof-of-neural-architecture consensus 基于神经架构证明共识的矿池协作策略

IF 5.6 3区计算机科学

Blockchain-Research and Applications Pub Date : 2022-12-01 DOI: 10.1016/j.bcra.2022.100089

Boyang Li , Qing Lu , Weiwen Jiang , Taeho Jung , Yiyu Shi

{"title":"A collaboration strategy in the mining pool for proof-of-neural-architecture consensus","authors":"Boyang Li , Qing Lu , Weiwen Jiang , Taeho Jung , Yiyu Shi","doi":"10.1016/j.bcra.2022.100089","DOIUrl":"10.1016/j.bcra.2022.100089","url":null,"abstract":"<div><p>In most popular public accessible cryptocurrency systems, the mining pool plays a key role because mining cryptocurrency with the mining pool turns the non-profitable situation into profitable for individual miners. In many recent novel blockchain consensuses, the deep learning training procedure becomes the task for miners to prove their workload. Thus, the computation power of miners will not purely be spent on the hash puzzle. In this way, the hardware and energy will support the blockchain service and deep learning training simultaneously. While the incentive of miners is to earn tokens, individual miners are motivated to join mining pools to become more competitive. In this paper, we are the first to demonstrate a mining pool solution for novel consensuses based on deep learning.</p><p>The mining pool manager partitions the full searching space into subspaces, and all miners are scheduled to collaborate on the Neural architecture search (NAS) tasks in the assigned subspace. Experiments demonstrate that the performance of this type of mining pool is more competitive than that of an individual miner. Due to the uncertainty of miners' behaviors, the mining pool manager checks the standard deviation of the performance of high reward miners and prepares backup miners to ensure completion of the tasks of high reward miners.</p></div>","PeriodicalId":53141,"journal":{"name":"Blockchain-Research and Applications","volume":"3 4","pages":"Article 100089"},"PeriodicalIF":5.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2096720922000306/pdfft?md5=58f6ff360f5b64e93eeb32717a88c707&pid=1-s2.0-S2096720922000306-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83432959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2