Layer 1 and Layer 2 solutions are fundamental to blockchain scalability. This article explains the difference between base-layer blockchains like Bitcoin and Ethereum (Layer 1) and scaling solutions built on top of them (Layer 2). It covers technologies such as rollups, sidechains, and state channels. Readers will learn how these systems improve transaction speed and reduce fees while maintaining security. The guide also explores real-world examples and future developments.
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