Kingter contributed to the piplabs/story-geth and storyprotocol/protocol-core-v1 repositories, focusing on royalty management, access control, and dynamic IP graph operations. Over two months, Kingter enhanced multi-level royalty calculations and implemented deterministic graph traversal, addressing precision and correctness in EVM-based smart contracts. Using Go and Solidity, Kingter refactored access control logic, introduced gas optimizations, and migrated validation logic to streamline cross-module interactions. The work included cleaning up logging for better debugging, enforcing secure contract upgrades, and improving test coverage. These efforts resulted in more accurate revenue distribution, scalable IP management, and maintainable code, demonstrating depth in blockchain backend development and smart contract engineering.