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Layer-2 Scaling Solution

Definition

A Layer-2 scaling solution is a framework built on top of an existing blockchain, known as Layer-1, to enhance its transaction processing capacity and reduce fees. These solutions process transactions off the main chain and then periodically submit a summarized proof of these transactions back to Layer-1. Examples include rollups, sidechains, and state channels, all designed to alleviate network congestion. They significantly improve network throughput and efficiency.