The rise of decentralized finance (DeFi) has led to a proliferation of blockchains, each with its own unique features and advantages. However, the lack of interoperability between these blockchains has been a major hindrance to the growth of the DeFi ecosystem. zkLink is a new protocol that aims to address this problem by providing privacy-preserving cross-chain communication. zkLink is built on top of zero-knowledge proofs (ZKPs), a cryptographic technique that allows for secure and private ...