What is a blockchain city?

Blockchain cities are futuristic projects to overcome some issues and problems (Piro et al., 2014 ). Efforts have been planned in smart cities to support people through information technologies (Hammi et al., 2017 ). People continue to have access to services wherever, including discussing neighborhood concerns (Trindade et al., 2017 ).

Can blockchain solve the security issues of smart cities?

Presents the state-of-the-art blockchain technology to solve the security issues of smart cities. Describes characteristics, security requirements, issues and challenges of smart cities. Presents the motivation behind applying blockchain technology to smart cities. Highlights the utility of blockchain in various smart communities. 1. Introduction

Why is a blockchain called a chain of block?

Chain of block, or blockchain to protect authenticity of the ledger. Because blocks are chained together like this, instead of calling it a ledger, it's common to call it a “blockchain”.

Are blockchain based solutions scalable and performance?

Scalability and performance Blockchain based solutions in a smart city must meet demand of business and government-based sectors, especially regarding scalability and performance. In this regard, several researchers focussed on increasing the number of replicas.