In recent years, blockchain has become one of the most booming
technologies. It has completely revolutionized industries and academia by creating a
transparent system of trading money. The blockchain industry has started to get
significant investments from corporations and tech mega-corporations. In the upcoming
years, its net worth is expected to increase more than three times. Blockchain
Technology has grown in popularity because of its trust, transparency, and data
security. As a result, everyone, either from academics or industry, wants to learn the
Blockchain. This chapter provides a detailed overview of Blockchain Technology,
which will help researchers and scholars quickly understand Blockchain. Firstly, we
introduce blockchain along with its history and a thorough understanding of different
types of networks. Then, the definition of Blockchain, fundamentals, categories of
Blockchain structure, characteristics, architecture, workflow, components, version,
Blockchain protocols, and finally, applications of Blockchain are discussed.
Keywords: Blockchain technology, Consensus, Cryptography, Distributed, Decentralized applications.