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Zero-Knowledge Rollup

Definition

A Zero-Knowledge Rollup is a blockchain scaling method that processes transactions off-chain and submits cryptographic proofs to the main chain. This layer-2 solution aggregates numerous transactions into a single batch, verifying their correctness using zero-knowledge proofs. Only this compact proof, rather than individual transaction data, is posted to the base layer blockchain. This process substantially boosts transaction throughput and reduces network congestion, enhancing efficiency for decentralized applications. It maintains the security assurances of the underlying layer-1 chain through mathematical validity.