Arbitrum ($ARB ) leads the layer two sector in 2026 as the largest network in terms of liquidity (TVL), providing a fast and secure environment for decentralized applications.
Optimism ($OP ) stands out with its "Superchain" system that unifies several networks under one umbrella,
while Polygon ($POL ) offers advanced technologies based on "zero-knowledge proofs" (ZK) to ensure massive scalability for the Ethereum network [1.4.2, 1.4.8].
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