PANews reported on March 3rd that Antonio García Martínez, Head of Growth at Base, announced on the X platform that Builder codes, which allow any application or protocol to self-label, are now live on Base. This feature will provide chain-level attribution support for all activities on the Base chain, enabling new business models at the application layer. Furthermore, these codes will serve as a source of trust for Base's future rewards program. Developers can now register for Builder codes at the base.dev website.