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Protocol Layering

Definition

Protocol Layering is an architectural approach in blockchain design where different functionalities are separated into distinct, interconnected layers. This strategy typically involves a base Layer 1 blockchain handling core security and settlement, with Layer 2 solutions built atop it to manage scalability, transaction processing, or specific application logic. Each layer specializes in certain tasks, allowing for greater efficiency and modularity across the overall system. This modular design helps address the blockchain trilemma of security, scalability, and decentralization.