Over a two-month period, contributed to the piplabs/story-geth and storyprotocol/protocol-core-v1 repositories by building and refining smart contract systems for royalty management, access control, and dynamic IP management. Leveraged Solidity and Go to implement deterministic graph traversal in the EVM, optimize gas usage, and enhance security through hardened access controls and error handling. Improved royalty calculations by introducing multi-level payment flows and precision safeguards, while migrating validation logic to simplify module interfaces. The work included extensive testing, code refactoring, and logging cleanup, resulting in more accurate revenue distribution, safer contract interactions, and maintainable codebases for blockchain-based DeFi applications.