ChainCatcher news, the privacy and scalability solution based on ZK Rollup, Aztec, states that it is building privacy abstractions to provide developers with smart contract privacy, supporting default anonymity, private state read/write capabilities, and private smart contract function execution. Aztec is based on a UTXO data architecture, and its smart contract privacy allows programmable privacy to be incorporated into the contract itself at the state variable and function level, enabling developers to call the desired functions.Currently, this research and development allows developers to write, test, and deploy private smart contracts and applications.