zkLink is a privacy-preserving oracle network built on top of the Ethereum blockchain. It aims to provide a trustless and decentralized solution for bringing off-chain data onto the blockchain while preserving the privacy of the data sources. Oracles are essential components of blockchain systems as they provide external data to the blockchain. However, oracles are vulnerable to attacks as they require a trusted third party to provide the data. This can lead to manipulation of the data or eve...