Course syllabus: Blockchain Lesson 1: Blockchain What is Blockchain? Decentralized systems Blockchain Origins Blockchain objectives P2P systems Blockchain Transactions and Blocks. Consensus Algorithms Lesson 2: Basic Cryptography: Binary, Decimal & Hexadecimal numbers Hash and types Encryption & Decryption Public & Private Keys Digital Signatures Lesson 3: Bitcoin: What is Bitcoin? Bitcoin as a Digital currency