Blockchain Basics: Blockchain is a decentralized ledger recording transactions without a central authority. Participants validate and store immutable, transparent data, ensuring trust and security throughout the network.
Blockchain Layers: The blockchain ecosystem consists of Layer 1 (core blockchain), Layer 2 (scaling solutions), and Layer 3 (applications), all working together to enable secure, scalable interactions with blockchain technology.
Key Concepts: Blockchain principles include immutability (data cannot be changed), permissionless participation (open to anyone), and decentralization (no single entity controls the system), ensuring security, transparency, and trust across networks.