zkRollup is a type of Layer 2 scaling solution for blockchains, primarily Ethereum, designed to improve transaction throughput and reduce costs while maintaining security. The "zk" in zkRollup stands for "zero-knowledge," referring to the use of zero-knowledge proofs in the technology. Here are the key aspects of zkRollup: • Batch Processing : zkRollup bundles or "rolls up" multiple transactions into a single batch. This batch is then processed and committed to the Ethereum blockchain as a single transaction. • Zero-Knowledge Proofs : zkRollup uses zero-knowledge succinct non-interactive arguments of knowledge (zk-SNARKs) or zk-STARKs to prove that all transactions in the batch are valid without revealing the transaction data itself. This ensures privacy and security. • Off-Chain Computation : Most of the transaction processing is done off-chain, which reduces the load on the Ethereum mainnet. Only the final proof and the necessary data for validating ...