Developed the Osaka Fork Timestamp Calculation feature for the Fulu upgrade in the prysmaticlabs/prysm repository, embedding precise fork timing logic directly into the genesis configuration. This work focused on enhancing blockchain interoperability and reducing upgrade risk by ensuring the genesis state accurately reflects the Osaka fork schedule. Leveraging Go programming and blockchain development expertise, the implementation updated interop genesis files to align with new fork logic, supporting seamless upgrade readiness. The approach emphasized commit traceability and cross-functional planning, contributing to the project roadmap by minimizing potential downtime and friction during network upgrades while maintaining robust smart contract compatibility.