This book is divided into seven chapters that provide detailed explanations of blockchain technology and its applications in the healthcare industries. The first chapter covers the security of transactions using blockchain technology. Every transaction is recorded in a block, which acts as a record book and helps in maintaining transparency and security. Chapter 2 delves into the Smart Contract, Hash Function, and Coinbase Transaction Structure in depth. Chapter 3 investigates the current state of blockchain advancement and crypto applications across various regions. Chapter 4 looks at the electronic voting system that takes advantage of blockchain technology's high level of security. Chapter 5 talks about WEB3.0, which uses blockchain as a medium to work, reducing the factor of data loss or leaks, as blockchain is fundamentally unalterable making them more secure for data storage. Chapter 6 presents the views on healthcare data management based on blockchain technology as well as prospective study areas for exchanging medical data via blockchain. Chapter 7 discusses how to generate tokens through a step-by-step procedure.