Ethereum privacy technology solution AZTEC has released ZK² Rollup technology. This technology combines Ethereum expansion solution ZK Rollup to increase transaction throughput and ZK-SNARKs, a zero-knowledge proof technology that enhances the privacy of each transaction. It aims to reduce the Ethereum network. Medium privacy transaction costs and build a high-speed privacy network. At present, developers can use the Privacy SDK to integrate privacy payments into DApps. The new technology will support the following three types of privacy: account balance privacy: hidden transaction amount; user privacy (coming soon): hidden "payer" and "recipient" Information; Code Privacy: hides information about assets / runs being spent.