During July 2025, Franco Sainas updated the chains.json configuration in the blockscout/chainscout repository to ensure accurate representation of current and supported blockchain networks. He focused on configuration management using JSON, applying version control best practices to deliver clear, traceable updates. By aligning the network list with ongoing ecosystem changes, Franco improved data accuracy and reduced maintenance drift, which enhanced network compatibility and reliability for downstream users. The work did not involve bug fixes but centered on proactive maintenance and data-driven updates. This contribution demonstrated careful attention to evolving requirements and collaborative repository management within a fast-changing blockchain environment.