Blockchain & Crypto Fundamentals
Understand blockchain technology and how crypto works.
- What Is Blockchain — Explained From First Principles
- Proof of Work — How Bitcoin Secures Itself
- Proof of Stake — The Energy-Efficient Alternative
- Decentralization — Why It Matters and the Trade-Offs
- Smart Contracts — Code That Runs on Blockchain
- Bitcoin Deep Dive — History, Halving, 21M Supply Cap
- Ethereum Deep Dive — The World Computer
- Layer 1 vs Layer 2 — Scaling Solutions
- Gas Fees and Transaction Mechanics
- Crypto Wallets — Hot, Cold, Hardware, Seed Phrases
- Centralized Exchanges (CEX) vs Decentralized Exchanges (DEX)
- Fundamentals Challenge