【Optimism: Retro Funding 5 application is now open】Golden Finance reported that Optimism announced on the X platform that Retro Funding 5 application is now open. Previously, Retro Funding 5: OP Stack registration was officially opened, and 8 million OP tokens will be distributed to the following contributors: 1. Ethereum core development contributors; 2. OP Stack R&D contributors; 3. OP Stack tool contributors.