Worked on the blockscout/chainscout repository to deliver the L2 Protocol Registry Update, enhancing the blockchain ecosystem’s data model for layer-2 protocols. Focused on expanding and restructuring chains.json by adding formal entries for L2 Protocols, including fields for protocol name, description, native currency, and relevant links. Applied JSON structure fixes to ensure the metadata remained scalable and machine-readable, supporting future growth and integration. Collaborated cross-functionally to maintain data quality and consistency throughout the registry. Utilized blockchain development expertise and data structure management skills, with a primary emphasis on JSON as the core language for defining and validating protocol metadata.