【Author】 Niu, Huimin Li, Ting Gong, Xiugang

【Source】PLOS ONE

【影响因子】3.752

【主题类别】

区块链应用-实体经济-财会领域

【Abstract】The security of the tax system is directly related to the development of a country. The conventional process of tax payment laborious steps, so this process becomes a cause of irregularities among taxpayers and tax authorities, increasing the rate of corruption in tax collection. Blockchain, as a distributed ledger technology, its unique advantages and promising applications in taxation offer an effective solution to the problems of electronic taxation. However, the transparency of blockchain exists the risk of privacy disclosure, the high degree of anonymity brings the problem of lack of user supervision. Therefore, for balancing the contradiction of taxpayer privacy and supervision, we propose a blockchain-based self-certified and anonymous e-taxing scheme, which uses blockchain as the underlying support, and utilizes cryptography technology such as self-certified public key, Diffie-Hellman, to reduce the taxpayer's reliance on the certificate authority, and protects the taxpayer's anonymity while realizing the tracking of the real identity of malicious taxpayers. The security analysis proves that the scheme has the properties such as anonymity, conditional privacy and unforgeability, etc. Finally, performance analysis shows that compared with similar schemes, the scheme significantly improves the registration efficiency, proving its practicability and implementability.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1371/journal.pone.0270454

【Author】 Kapadiya, Khyati Patel, Usha Gupta, Rajesh Alshehri, Mohammad Dahman Tanwar, Sudeep Sharma, Gulshan Bokoro, Pitshou N.

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Nowadays, health insurance has become an essential part of people's lives as the number of health issues increases. Healthcare emergencies can be troublesome for people who can't afford huge expenses. Health insurance helps people cover healthcare services expenses in case of a medical emergency and provides financial backup against indebtedness risk. Health insurance and its several benefits can face many security, privacy, and fraud issues. For the past few years, fraud has been a sensitive issue in the health insurance domain as it incurs high losses for individuals, private firms, and governments. So, it is essential for national authorities and private firms to develop systems to detect fraudulent cases and payments. A high volume of health insurance data in electronic form is generated, which is highly sensitive and attracts malicious users. Motivated by these facts, we present a systematic survey for Artificial Intelligence (AI) and blockchain-enabled secure health insurance fraud detection in this paper. This paper presents a taxonomy of various security issues in health insurance. We proposed a blockchain and AI-based secure and intelligent system to detect health insurance fraud. Then, a case study related to health insurance fraud is presented. Finally, the open issues and research challenges in implementing the blockchain and an AI-empowered health insurance fraud detection system is presented.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Insurance; Security; Medical services; Blockchains; Costs; Encryption; Servers; Healthcare insurance; fraud detection; AI; blockchain; security

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3194569

【Author】 Hawashin, Diana Salah, Khaled Jayaraman, Raja Yaqoob, Ibrar Musamih, Ahmad

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Billions of dollars lost has been recorded over the past decade due to the overproduction and underconsumption of medical supplies. The overproducation and underconsumption are usually due to the lack of accountability, transparency, traceability, audit, assessment, security, and trust features in the current healthcare supply chain systems. It is required to ensure that everyone is getting a fair share of medical supplies without unnecessary waste. In this paper, we propose a blockchain-based solution that ensures the commitment and accountability of all participants to prevent them from producing any unnecessary waste. We introduce five phases, such as registration, commitment, production, delivery, and consumption, to perform the waste assessment accurately and fairly. We develop four smart contracts that ensure data provenance, transparency, security, and accountability while recording all actions on an immutable ledger automatically. We utilize offchain decentralized storage to deal with the large data problem. We present five algorithms and discuss each phase of the proposed solution, along with their full implementation, testing, and validation details. We conduct the security analysis to ensure that our smart contracts are secure enough and they do not have vulnerabilities and flaws. The smart contracts code is made publicly available on GitHub.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Supply chains; Medical services; Smart contracts; Hospitals; Blockchains; COVID-19; Production; Medical supply; medical waste; commitment; waste accountability; traceability; blockchain; Ethereum; smart contracts

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 实验仿真

【DOI】 10.1109/ACCESS.2022.3188778

【Author】 Verma, Ashwin Bhattacharya, Pronaya Madhani, Nirav Trivedi, Chandan Bhushan, Bharat Tanwar, Sudeep Sharma, Gulshan Bokoro, Pitshou N. Sharma, Ravi

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-工业领域

【Abstract】Industry 4.0 have witnessed a paradigm shift from cyber-physical systems (CPS) that aims at massive automation, to a more customer-driven approach. The shift has been attributed to the design of hyper-cognitive systems, integration of virtual and extended reality, digital machinery prototyping and twin designs, trusted machine boundaries, collaborative robots, and artificial intelligence (AI)-based supply chains. This new wave, termed Industry 5.0, is expected to leverage massive production with user-centric customization outside the scope of Industry 4.0 ecosystems. Industry 5.0 is expected to assist diverse industrial verticals like healthcare, smart farming, drones, smart grids, and supply chain production ecosystems. However, data is shared among multiple heterogeneous networks, spanning different authoritative domains. Thus, trusted and secured data transfer is crucial to synergize and secure the industrial perimeters. Blockchain (BC) is a preferred choice as a security enabler to Industry 5.0 ecosystems owing to its inherent property of immutability, chronology, and auditability in industrial systems. Limited works are proposed that present the vision and holistic view of BC-assisted Industry 5.0 applications. The article presents a first-of-its-kind survey on BC as a security enabler in Industry 5.0. Based on a descriptive survey methodology and research questions, we presented the key drivers, and potential applications, and propose an architectural vision of BC-based Industry 5.0 in diverse applicative verticals. The survey intends to present solutions that would assist industry practitioners, academicians, and researchers to drive novel BC-assisted solutions in Industry 5.0 verticals.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Industries; Production; Fourth Industrial Revolution; Security; Service robots; Artificial intelligence; Blockchains; Blockchain; Industry 5; 0; Internet-of-Things; security; privacy

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3186892

【Author】 Yang, Jaehun Lee, Dongmin Baek, Chanwoo Park, Chansik Lan, Bao Quy Lee, Doyeop

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-建筑领域

【Abstract】As a temporary facility, scaffolding has an essential role in providing a work environment at height in the construction industry. According to the Occupational Safety and Health Administration (OSHA), approximately 65% of laborers work on scaffolding. Scaffolding work information needs to be effectively managed with reliability to provide a safe environment. However, managing information of the scaffolding work process remains challenging in forgery risk and manual verification. Blockchain has been widely introduced as an accountable and efficient information management solution. This study presents a blockchain-based system for scaffolding work to grant reliability and efficiency of information management. The system is developed to secure applicability by considering three aspects: (1) optimal blockchain platform regarding characteristics of scaffolding work; (2) storage method to address the hindrance of blockchain; (3) information needed to be compared for verifying adequacy. The detailed configuration and process model for the system is categorically presented, and validated via a case study. The case study confirmed that the system was able to store the information in the block smoothly, verify the information using the smart contract successfully, and remain the block size constant by using off-chain. The proposed system has the potential of practical applicability and could contribute to mitigate potential safety risks associated with inadequate scaffolding work management. Furthermore, the proposed system development flow can be leveraged as a guideline to extend blockchain applications to diverse areas in the construction domain.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Reliability; Smart contracts; Safety; Procurement; Information management; Supply chains; Blockchain application; construction safety; hybrid on-chain and off-chain system; scaffolding work; smart contract

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3165614

【Author】 Alsunaidi, Shikah J. Khan, Fakhri Alam

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-环境领域

【Abstract】Most of the world's countries are concerned with reducing harmful gas emissions. Some governments have made considerable attempts to address this problem. Saudi Arabia, for example, has taken significant steps to utilize renewable energy (RE) sources in addition to oil and gas. Consumers are encouraged to build small RE systems. These small grids will help people meet their daily electrical energy requirements. They can sell the excess to other customers. One of the major issues is managing the distribution and sale of RE. Blockchain-based peer-to-peer (P2P) networks can help overcome several obstacles to the implementation of a distributed RE management system (DREMS). However, several impediments may still stand in the way of its execution. Scalability and productivity are two of the most important considerations. The number of transactions made to the Blockchain network will increase in lockstep with the number of energy consumers. This will result in a significant lag in response. Understanding the renewable distributed energy system will aid in minimizing the effects of these roadblocks. Therefore, this research identifies the RE systems installation approaches, and how Blockchain technology can be utilized. It provides the solution requirements of any DREMS. Moreover, it proposes a new Blockchain-based framework for DREMS. And designs selective protocols of the proposed framework. It provides a comparative analysis to assess the proposed protocols' ability to meet the identified requirements.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Renewable energy sources; Blockchains; Peer-to-peer computing; Smart contracts; Costs; Scalability; Microgrids; Blockchain; distributed management; microgrid; renewable energy

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3196457

【Author】 Patro, Pratyush Kumar Jayaraman, Raja Salah, Khaled Yaqoob, Ibrar

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Efficient traceability management is necessary for managing products in the fishery supply chain. Any negligence in products' traceability can result in food fraud that may adversely affect the consumer's health. Monitoring and tracking of the fishery supply chain operations can assist system stakeholders in identifying the origins and causes of product fraud and malpractice. Most of the existing systems and technologies used to manage the fishery supply chain processes fall short of providing traceability, accountability, transparency, reliability, trust, privacy, and security features. In this paper, we propose a private Ethereum blockchain-based solution to efficiently manage the fishery supply chain operations in a manner that is decentralized, transparent, traceable, secure, private, and trustworthy. We present the solution architecture and propose five smart contracts to automate the processes in fishery supply chain. We present ten algorithms along with their full implementation, testing, and validation details. We conduct a security analysis to show that the proposed solution is both secure and trustworthy. We compare our solution with the existing blockchain and non-blockchain-based solutions to show its effectiveness and novelty. We make the smart contract code publicly available on GitHub.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Fish; Supply chains; Aquaculture; Blockchains; Stakeholders; Production; Smart contracts; Blockchain; Ethereum; fishery supply chain; smart contract; traceability

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3196162

【Author】 Al-Abri, Tariq Onen, Ahmet Al-Abri, Rashid Hossen, Abdulnasir Al-Hinai, Amer Jung, Jaesung Ustun, Taha Selim

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】With the rapid transformation of the energy sector towards modern power systems represented by smart grids (SGs), microgrids (MG), and distributed generation, blockchain (BC) technology has shown the capability for solving security, privacy, and reliability challenges that hinder progress. Currently, the energy structure is forming a decentralized system that prioritizes customer satisfaction. BC technology undertakes power network stockholders in a secure energy market, transparent transactions, and fair competition and offers promising energy solutions. This paper is a comprehensive review of energy applications using BC integration. Firstly, we introduce the drivers of BC leverage that make it a potentially important component of the power network. Following that, we provide background information on BC and its application in areas other than the energy sector. Subsequently, we discuss studies and sort potential energy applications from various recent papers and surveys that have already adopted BC technology in the energy sector. Then, we summarize the pricing infrastructure for applying BC in the energy sector and identify the requirements to build it. Finally, energy security and privacy challenges based on BC are highlighted, along with potential drawbacks and concerns related to the pricing infrastructure.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Security; Peer-to-peer computing; Consensus protocol; Privacy; Pricing; Distributed ledger; Renewable energy sources; Blockchain; smart grid; IoT; smart contract; microgrid; AI; security; privacy

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3194161

【Author】 Li, Guozhi Li, Xiaofei Song, Xuekun Zeng, Yue

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Detecting traces of patients with novel coronavirus pneumonia (COVID-19) is a prerequisite for avoiding the virus's rapid spread. However, too much patient privacy data uploaded to the cloud centre will overwhelm the network and cause user information security not to be guaranteed. In this paper, we propose a personal prediction method for COVID-19 infections by perceiving the information of worn biosensors and monitoring equipment in a body area network (BAN). Edge computing and blockchain technology are introduced to solve the problems of user privacy protection and perceptual data transmission and storage. We first construct an edge body area network (EBAN) and characterize the edge blockchain cost's maximization function by considering the bandwidth, storage space, and energy consumption constraints. Then we build a blockchain without redundant perception information and select effective transmission paths by using the edge blockchain construction efficiency maximization (EBCEM) algorithm. Finally, we use the network simulator (NS-2) to simulate the performance of the EBCEM algorithm and compare it with the excellent assignment game algorithm (AGA) in terms of the effective requester ratio (ERR), effective provider ratio (EPR), edge blockchain construction success ratio (EBCSR), and average storage usage ratio (ASUR) in the EBAN.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】COVID-19; Blockchains; Edge computing; Image edge detection; Body area networks; Bandwidth; Servers; Body area network; edge blockchain construction efficiency maximization algorithm; edge blockchain cost; edge computing; novel coronavirus pneumonia (COVID-19)

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3191861

【Author】 Tang, Song Wang, Zhiqiang Dong, Jia Ma, Yandong

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-政务领域

【Abstract】With the development of the times, the existing social security system can no longer meet people's needs in terms of providing transparent, distributed sharing, tamper-proof, traceable, consensus trust and trustworthy services. Furthermore, they are centralized and subject to a single point of control and failure. In this context, we propose a consortium blockchain-based solution to establish and improve social security informatization to meet the above challenges. In this article, we present specific business situations for three important social security services. Namely, apply for social insurance, apply for social assistance and social benefits online. Our proposed solution also provides a multi-party trust and data sharing mechanism, and also demonstrates the integration of blockchain and Interplanetary File System (IPFS) storage systems to facilitate the security of approval documents, photos and videos related to the processing of social security services Accessibility and traceability. It also introduces the implementation and testing details of the algorithm in the smart contract, and expounds how to apply it in the automatic approval of social security business to reduce the workload of existing manual review. Finally, by comparing with the existing system, it is discussed that our solution has great advantages in promoting the online processing of social security business, and the safe access and traceability of approval documents, photos and videos.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Security; Blockchains; Peer-to-peer computing; Licenses; Business; Insurance; Springs; Alliance blockchain; social security services; smart contracts; IPFS

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3190963

【Author】 Kabla, Arkan Hammoodi Hasan Anbar, Mohammed Manickam, Selvakumar Al-Amiedy, Taief Alaa Cruspe, Peterson Bernabe Al-Ani, Ahmed K. Karuppayah, Shankar

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链技术-平台项目-Ethereum

【Abstract】For many reasons, Ethereum attracts more investors, researchers, and even scammers; this is the first platform that enables the new Decentralized Applications (DApps) to run on top of the blockchain network. However, the rich semantics and applications of DApps inevitably introduce many security issues that have grabbed significant attention from industry and academics due to their destructive impact on DApps in recent years. Therefore, there is a vital need to study the applicability of Intrusion Detection System in detecting Ethereum-based attacks. Hence, this paper is among the first comprehensive review that studies the applicability of IDS in detecting Ethereum-based attacks. In addition, this paper lists all the potential attacks on Ethereum passing through the vulnerabilities that cause those attacks and ending with the consequences of each attack. Furthermore, this paper analyses all the IDS-based related works of Ethereum attacks detection since the Ethereum platform was launched in 2015. Finally, this paper discusses the open issues regarding vulnerabilities and attacks, challenges, and future directions.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Decentralized applications; Peer-to-peer computing; Smart contracts; Intrusion detection; Bitcoin; Data structures; Anomaly detection; blockchain; cryptocurrency; Ethereum attacks; Ethereum vulnerabilities; intrusion detection system; Kademlia; P2P network; smart contracts; transaction

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 综述

【DOI】 10.1109/ACCESS.2022.3188637

【Author】 Gaba, Priyanka Raw, Ram Shringar Mohammed, Mazin Abed Nedoma, Jan Martinek, Radek

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链技术-平台项目-Hyperledger Fabric

【Abstract】Blockchain, a vital technology in today's era, changed the way we share, manage and exchange our data in a centralized way to decentralized architecture. With the increasing demand for Blockchain, various platforms are available to implement public, private, consortium, or permissioned, permissionless Blockchain. Hyperledger, an open-source, permissioned, distributed ledger-based Blockchain, was hosted by Linux. This paper explores Hyperledger Fabric Private Blockchain Network (HFPBN). The architecture of HFPBN with its components and transaction flow is explored in detail. The Blockchain in HFPBN comprises multiple blocks that are linked to each other. The block elements are discussed in detail with their type and size, and after that, the total size of the block depending upon various parameters is calculated. Further, one application of Blockchain, i.e., Vehicular Ad-hoc Networks (VANETs), is discussed in this paper as a case study. The VANET application is implemented on the Hyperledger Fabric platform. Formulas showing the dependency of various parameters like endorsement policy, number of transactions, and number of reads and writes on block size are derived and shown in their relationship through the graph for the VANET system. The impact of block size on various performance parameters like throughput, latency, memory, and CPU utilization for the VANET system is then analyzed using Hyperledger Caliper. An optimal required value of throughput and latency is achieved for Blockchain-based VANET. Also, the Hyperledger Fabric platform seems suitable for many applications as it creates separate Blockchain for different applications.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Vehicular ad hoc networks; Distributed ledger; Fabrics; Peer-to-peer computing; Smart contracts; Throughput; Blockchain; Hyperledger Caliper; Hyperledger fabric; VANET

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 观点阐述

【DOI】 10.1109/ACCESS.2022.3188296

【Author】 Benabdallah, Ali Audras, Antoine Coudert, Louis El Madhoun, Nour Badra, Mohamad

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-公共管理

【Abstract】To this day, abstention rates continue to rise, largely due to the need to travel to vote. This is why remote e-voting will increase the turnout by allowing everyone to vote without the need to travel. It will also minimize the risks and obtain results in a faster way compared to a traditional vote with paper ballots. In fact, given the high stakes of an election, a remote e-voting solution must meet the highest standards of security, reliability, and transparency to gain the trust of citizens. In literature, several remote e-voting solutions based on blockchain technology have been proposed. Indeed, the blockchain technology is proposed today as a new technical infrastructure for several types of IT applications because it allows to remove the TTP and decentralize transactions while offering a transparent and fully protected data storage. In addition, it allows to implement in its environment the smart-contracts technology which is used to automate and execute agreements between users. In this paper, we are interested in reviewing the most revealing e-voting solutions based on blockchain technology.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Electronic voting; Blockchains; Authentication; Smart contracts; Scalability; Resistance; Privacy; Authentication; blockchain; e-voting; privacy; security; smart-contracts; transparency

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 综述

【DOI】 10.1109/ACCESS.2022.3187688

【Author】 Touloupou, Marios Themistocleous, Marinos Iosif, Elias Christodoulou, Klitos

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链技术-核心技术-共识机制

【Abstract】Blockchain is a disruptive technology that focuses on the safe exchange of data between several distributed applications. Despite its widespread adoption, there are areas that require further research towards the understanding of their performance characteristics. In addition, consensus algorithms, a vital part of blockchain, require a more comprehensive understanding of their technical principles and characteristics. Along with the design of different types of consensus algorithms, several challenges, such as system scalability and power consumption, have been raised. Therefore, more comprehensive research is needed to investigate the degree to which consensus algorithms are built and how they perform. To this end, this study extends the body of knowledge and contributes towards the assessment of blockchain protocol performance. We present a comprehensive taxonomy of selected studies on blockchain performance, identifying similarities and differences while attempting to identify existing work on simulators and benchmarking frameworks that aim to explore the performance of blockchain-enabled consensus algorithms.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Bibliographies; Systematics; Protocols; Consensus algorithm; Libraries; Planning; Blockchain; distributed ledgers; consensus; blockchain performance

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 综述

【DOI】 10.1109/ACCESS.2022.3188123

【Author】 Kim, Minjae Lee, Jinhee Kwon, Hyunsoo Hur, Junbeom

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链治理-技术治理-实体分类

【Abstract】Bitcoin is the most widely used cryptocurrency for illegal trade in current darknet markets. Owing to the anonymity of its addresses, even though transaction flows are globally visible, Bitcoin clustering remains one of the most challenging and open problems in illegal Bitcoin transaction analysis. In this article, to resolve this problem, we propose a novel multi-layer heuristic algorithm for Bitcoin clustering, which leverages on-chain transactions as well as off-chain application data in the real world. For this purpose, we first explored the unique characteristics of darknet market ecosystems including their trading systems. By conducting an in-depth analysis of the data manually collected for 11 months, we found that some darknet market review data disclosed transactions containing Bitcoin value and item delivery information. We then identified unique Bitcoin addresses associated with the disclosed information, owned by the same darknet providers. Based on address ownership, more accurate market clusters could be created, which have not previously been identified by other clustering algorithms. According to our experimental results, approximately 31.68% of the darknet market review data matched real Bitcoin transactions, and 122 hidden clusters associated with Silk Road 4 were found. This indicates that the proposed algorithm can complement existing clustering methods and significantly reduce the false negative rate by up to 91.7%.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Bitcoin; Clustering algorithms; Roads; Heuristic algorithms; Blockchains; Approximation algorithms; Public key; Address clustering; Bitcoin; blockchain; de-anonymization

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3187210

【Author】 Madhwal, Yash Borbon-Galvez, Yari Etemadi, Niloofar Yanovich, Yury Creazza, Alessandro

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-供应链

【Abstract】The growth of the enterprise blockchain research supporting supply chain management calls for investigations of their impact and mindfulness of their design, use cases, and pilots. With a blockchain design for the Proof of Delivery (PoD) process management, this paper contributes to learning about performance measurement and the transaction costs implications during the development and application of smart contracts. An experimental design science approach is applied to develop an open-source blockchain to explore ways to make the delivery processes more efficient, the proof of delivery more reliable, and the performance measurements more accurate. The theory of Transaction Costs is applied to evaluate the cost implications of the adoption of smart contracts in the management of the PoD. The findings show that smart contracts make the delivery processes more efficient and proof of delivery more reliable. Yet, the methods and metrics are too complex and qualitative, limiting the smart contract's capability to measure performance. Our findings indicate potential transaction costs reduction by implementing a blockchain-based performance measurement. The complexities of the delivery process and proof of delivery call for pre-contractual steps to identify the processes and performance metrics to design blockchains. Smart contracts need further development and digital aids to handle qualitative inspections and proof of delivery generation during the delivery process. The blockchain requires the system's capacity to record off-chain transactions, such as in case of disputes resolutions. The authors extended blockchain research beyond the theoretical level, designing an open-source blockchain for supply chain management within the use case, pilot design, and case study.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Costs; Blockchains; Smart contracts; Supply chains; Measurement; Distributed ledger; Supply chain management; Actual time of arrival; blockchain; delivery performance; delivery process; estimated time of arrival; Ethereum; smart contract; proof of delivery; transaction costs theory

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 实验仿真

【DOI】 10.1109/ACCESS.2022.3185634

【Author】 Hoai Luan Pham Thi Hong Tran Vu Trung Duong Le Nakashima, Yasuhiko

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】Developing a low-cost and high-performance BLAKE accelerator has recently become an attractive research trend because the BLAKE algorithm is important in widespread applications, such as cryptocurrencies, data security, and digital signatures. Unfortunately, the existing BLAKE circuits are limited in performance and hardware efficiency. Therefore, this paper introduces the first fully pipelined BLAKE-256/512 accelerator to improve throughput and hardware efficiency. Moreover, based on the rates of changed words in consecutive message inputs, a compact message permutation scheme is proposed to reduce the area and energy consumption of the fully pipelined BLAKE-256/512 accelerator. To achieve these goals, the compact message permutation scheme includes two novel optimization techniques: register optimization, reducing the number of registers used by over 80% compared to conventional message permutation in a theoretical evaluation, and XOR optimization, decreasing the number of XOR gates by 93.8%. An ASIC-based experiment shows that the proposed compact message permutation scheme helps reduce the area and power consumption by up to 11.35% and 21.10%, respectively, for the fully pipelined BLAKE-256 accelerator and by up to 9.86% and 20.32%, respectively, for the fully pipelined BLAKE-512 accelerator. The correctness of the compact message permutation scheme is verified on a real hardware platform (an Alveo U280 FPGA).

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【Keywords】Hardware; Blockchains; Computer architecture; Throughput; Optimization; Field programmable gate arrays; Power demand; Blockchain mining; FPGA; GPU; BLAKE; fully pipelined

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 实验仿真

【DOI】 10.1109/ACCESS.2022.3181410

【Author】 Cantillo-Luna, Sergio Moreno-Chuquen, Ricardo Chamorro, Harold R. Sood, Vijay K. Badsha, Shahriar Konstantinou, Charalambos

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】Power grids all over the world are transitioning towards a decentralized structure. Under such a transition, blockchain technology is emerging as a potential solution for technical, deployment and decentralization issues, given its security, integrity, decentralized nature and required infrastructure. Moreover, blockchain technology offers excellent features like non-repudiation and immutability which makes it a promising application for DER integration and management on reliability factors. In this paper, a comprehensive review of blockchain applications for DER management and integration is presented. First, a blockchain-based literature review of research activities in the DER integration area and related tasks including entrepreneurial efforts is carried out. Next, the different opportunities and challenges of DER integration and management in power grids, i.e., centralization, regulatory support, development costs are discussed. Finally, some key research challenges and opportunities of including blockchain technology to DER integration and management issues are presented.

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【Keywords】Blockchains; Peer-to-peer computing; Security; Distributed power generation; Smart contracts; Consensus protocol; Distributed ledger; Blockchain; distributed energy resources (DER); distributed ledger technologies; consensus algorithms

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 理论模型

【DOI】 10.1109/ACCESS.2022.3184704

【Author】 Aslam, Naila Rustam, Furqan Lee, Ernesto Washington, Patrick Bernard Ashraf, Imran

【Source】IEEE ACCESS

【影响因子】3.476

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】The cryptocurrency market has been developed at an unprecedented speed over the past few years. Cryptocurrency works similar to standard currency, however, virtual payments are made for goods and services without the intervention of any central authority. Although cryptocurrency ensures legitimate and unique transactions by utilizing cryptographic methods, this industry is still in its inception and serious concerns have been raised about its use. Analysis of the sentiments about cryptocurrency is highly desirable to provide a holistic view of peoples' perceptions. In this regard, this study performs both sentiment analysis and emotion detection using the tweets related to the cryptocurrency which are widely used for predicting the market prices of cryptocurrency. For increasing the efficacy of the analysis, a deep learning ensemble model LSTM-GRU is proposed that combines two recurrent neural networks applications including long short term memory (LSTM) and gated recurrent unit (GRU). LSTM and GRU are stacked where the GRU is trained on the features extracted by LSTM. Utilizing term frequency-inverse document frequency, word2vec, and bag of words (BoW) features, several machine learning and deep learning approaches and a proposed ensemble model are investigated. Furthermore, TextBlob and Text2Emotion are studied for emotion analysis with the selected models. Comparatively, a larger number of people feel happy with the use of cryptocurrency, followed by fear and surprise emotions. Results suggest that the performance of machine learning models is comparatively better when BoW features are used. The proposed LSTM-GRU ensemble shows an accuracy of 0.99 for sentiment analysis, and 0.92 for emotion prediction and outperforms both machine learning and state-of-the-art models.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Cryptocurrency; sentiment analysis; Text2Emotion; emotion analysis; machine learning

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 实证数据

【DOI】 10.1109/ACCESS.2022.3165621

【Author】 Sumarliah, Eli Li, Tieke Wang, Bailin Fauziyah, Fauziyah Indriya, Indriya

【Source】INTERNATIONAL JOURNAL OF INFORMATION SYSTEMS AND SUPPLY CHAIN MANAGEMENT

【影响因子】0.000

【主题类别】

区块链应用-实体经济-时尚领域

【Abstract】Incorporating blockchain into Halal traceability systems is developing in nature; the research aspires to examine the participation intent in blockchain-empowered Halal fashion traceability (BHFT) system via a joint framework that includes diffusion of innovation theory, institutional theory, and Halaloriented approach. The study uses a simple random sampling method to collect the data from 165 Indonesian Halal fashion manufacturing companies. PLS-SEM is employed to examine the conceptual framework. Findings show that Halal-oriented approach significantly affects institutional pressures, while institutional pressures significantly affect perceived desirability, and perceived desirability significantly affects the participation intent. The companies operating an inclusive Halal-oriented approach will be more aware of the institutional pressures that expect them to partake in a BHFT. The paper enhances the existing literature in Halal supply chains, blockchain, operation management, and information systems via a cohesive framework and empirical insight.

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【Keywords】Blockchain; Diffusion of Innovation Theory; Halal Fashion; Halal Orientation Strategy; Hijab; Innovation; Institutional Theory; Supply Chain; Traceability System

【发表时间】2022

【收录时间】2022-08-29

【文献类型】 观点阐述

【DOI】 10.4018/IJISSCM.287628