What Specific Zero-Knowledge Proof Technology Is Commonly Used in ZK-Rollups for Financial Transactions?

ZK-Rollups predominantly use zk-SNARKs (Zero-Knowledge Succinct Non-Interactive Arguments of Knowledge) and zk-STARKs (Zero-Knowledge Scalable Transparent ARguments of Knowledge). zk-SNARKs offer smaller proof sizes and faster verification but require a trusted setup. zk-STARKs are generally more computationally intensive for proof generation but offer transparency and quantum resistance, making them increasingly popular for large-scale financial applications.