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Blockchain

Layer 2

A secondary network built on top of a main blockchain (Layer 1) to improve speed and reduce costs. Layer 2 solutions process transactions off the main chain and then settle them back in batches. Popular Layer 2s for Ethereum include Arbitrum, Optimism, and Base.

Example

Trading on a Layer 2 like Arbitrum costs a fraction of what it does on Ethereum mainnet.

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