Zero-Knowledge Rollup (ZK-Rollup) refers to a layer 2 scaling solution designed to enhance the efficiency of blockchain networks. It groups multiple transactions into a single batch, allowing for faster processing while reducing congestion on the main blockchain.The “zero-knowledge” aspect comes from the use of cryptographic proofs, enabling the network to verify a batch of transactions without exposing the details of each individual transaction. This means that even though the information is bundled together, it can still ensure validity without revealing sensitive data.ZK-Rollups improve scalability by significantly reducing the amount of data that needs to be recorded on the main blockchain. This not only lowers transaction fees but also speeds up transaction times. Ultimately, ZK-Rollups enhance both privacy and throughput, making them an attractive solution for applications that require secure, fast, and efficient transactions.