During May 2025, Dan developed the LibProverAuth Solidity library for the taikoxyz/taiko-mono repository, focusing on secure prover authentication within smart contracts. Leveraging his expertise in Solidity and cryptography, he implemented ECDSA-based signature recovery and on-chain signature validation to ensure only authorized provers could interact with the system. The library also introduced mechanisms for handling associated fees and enforcing validity period checks, addressing both security and operational requirements for scalable on-chain interactions. Dan’s work demonstrated a deep understanding of smart contract development, delivering a robust, auditable solution that enhances the security and reliability of prover authentication workflows.