Worked on the ethereum/go-ethereum repository to address a critical bug in EIP-712 type encoding, focusing on backend development using Go. The primary effort centered on correcting the serialization of empty types within the EIP-712 signing specification, ensuring that type-hash calculations for Empty types were accurate and compliant with eth_signTypedData_v4 flows. By refining the truncation logic in the encoding function, the changes improved interoperability and reduced signature verification failures across clients. No new features were introduced during this period, with all work dedicated to enhancing reliability and correctness in multi-platform signing workflows through targeted bug fixes.