Foundations of Blockchain Technology and Web3

Blockchain technology is reshaping how we handle data, trust, and transactions across the globe. To navigate this rapidly evolving field, you need a solid grasp of its core mechanisms and modern implementations. This text-based course guides you from absolute beginner to a confident professional who understands the mechanics of decentralized systems. You will learn the underlying principles of cryptography, smart contracts, and modern distributed ledgers. What you'll learn: 1. Understand the core architecture of blockchain, cryptography, and distributed ledger technology. 2. Compare different consensus mechanisms including Proof of Work, Proof of Stake, and modern alternatives. 3. Analyze the structure and lifecycle of smart contracts on platforms like Ethereum. 4. Explore modern blockchain scaling solutions, including Layer 2 networks and sidechains. 5. Evaluate real-world use cases such as decentralized finance and decentralized identity. 6. Identify key security best practices and common vulnerabilities in decentralized applications. We begin by clarifying key terminology, foundational definitions, and historical context before progressing to network architectures, consensus protocols, and modern Web3 applications. This course is designed for beginners with no prior programming or blockchain experience required. Start reading today to build your foundational knowledge of decentralized technology.