Take the Ethical Hacking course (recommended). In this course, you will learn what a block is and how it works. You will learn how the basic blockchain data structures work and how to apply them in the real world. Blockchain is being called one of the next big revolutions in computing. In this Blockchain – Principles and Practices course, you will learn how a blockchain works and how to apply it in the real world. First, you will learn the basics of cryptography required for a blockchain. Next, you will see how transactions are stored in a block. Then, you will learn how Proof-of-Work makes a blockchain resistant to tampering and corruption. Finally, you will learn how to maintain consensus in a network to maintain a secure and reliable blockchain. When you complete this course, you will have the skills and knowledge of blockchains to understand how they work and how they can be applied to your systems.