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1.	Monrat, Ahmed Afif, 1990-, et al. (författare) Survey of Blockchain from the Perspectives of Applications, Challenges and Opportunities 2019 Ingår i: IEEE Access. - : IEEE. - 2169-3536. ; 7, s. 117134-117154 Tidskriftsartikel (refereegranskat)abstract Blockchain is the underlying technology of a number of digital cryptocurrencies. Blockchain is a chain of blocks that store information with digital signatures in a decentralized and distributed network. The features of blockchain, including decentralization, immutability, transparency and auditability, make transactions more secure and tamper proof. Apart from cryptocurrency, blockchain technology can be used in financial and social services, risk management, healthcare facilities, and so on. A number of research studies focus on the opportunity that blockchain provides in various application domains. This paper presents a comparative study of the tradeoffs of blockchain and also explains the taxonomy and architecture of blockchain, provides a comparison among different consensus mechanisms and discusses challenges, including scalability, privacy, interoperability, energy consumption and regulatory issues. In addition, this paper also notes the future scope of blockchain technology.

Monrat, Ahmed Afif, 1990-, et al. (författare)
Survey of Blockchain from the Perspectives of Applications, Challenges and Opportunities
2019
Ingår i: IEEE Access. - : IEEE. - 2169-3536. ; 7, s. 117134-117154
Tidskriftsartikel (refereegranskat)abstract
- Blockchain is the underlying technology of a number of digital cryptocurrencies. Blockchain is a chain of blocks that store information with digital signatures in a decentralized and distributed network. The features of blockchain, including decentralization, immutability, transparency and auditability, make transactions more secure and tamper proof. Apart from cryptocurrency, blockchain technology can be used in financial and social services, risk management, healthcare facilities, and so on. A number of research studies focus on the opportunity that blockchain provides in various application domains. This paper presents a comparative study of the tradeoffs of blockchain and also explains the taxonomy and architecture of blockchain, provides a comparison among different consensus mechanisms and discusses challenges, including scalability, privacy, interoperability, energy consumption and regulatory issues. In addition, this paper also notes the future scope of blockchain technology.

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