ZK-SNARK stands for Zero-Knowledge Succinct Non-Interactive Argument of Knowledge. It is a cryptographic method that enables one party to prove to another that they possess certain information without revealing the information itself.In practice, ZK-SNARKs allow transactions to be verified without disclosing the sender, receiver, or the transaction amount. This ensures privacy while maintaining the integrity of the blockchain.The process is “succinct” because it produces a proof that is very small in size and can be verified quickly, regardless of the data size involved. “Non-interactive” means that the proof can be verified without the need for back-and-forth communication between the parties involved.ZK-SNARKs enhance privacy and scalability in blockchain systems, making them attractive for applications where confidentiality is critical. Their implementation can support various use cases, from anonymous transactions to secure voting systems, offering a blend of privacy and security that is vital in many scenarios.