Abstract
Abstract: A city is called a smart city where every citizen gets quality government services using the technologies like Information and Communication Technology (ICT). ICT also helps in providing operational efficiency in information sharing with the public. Smart cities promote better quality of life by using modern technologies and economic growth. Blockchain helps in end-to-end data transfer with great efficiency, transparency and security. Every data is stored in a block which has a hash value also considered as digital signature. In this paper, it is discussed how we can use Blockchain technologies to promote smart cities and provide better services. Also, it discusses various challenges and trends in use of blockchain technology in building smart cities.
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