Cryptocurrency Trading Course
Lesson 10 of 26 · Pro
Introduction to Layer 2/3 Blockchains and Sidechains
What this lesson covers
- Layer 1 (Bitcoin, Ethereum), Layer 2 (Polygon, Arbitrum, Optimism) and Layer 3
- Optimistic and zero-knowledge rollups, and how they help Layer 1 scale
- Tracking tools: L2beat, DeFi Llama, Bridge TVL
- Adoption numbers: daily transactions, unique addresses, gas prices
- Research tools: hash rate against price, Blockcircle Research, DappRadar
General information for learning, not financial advice. Trading can lose money.