According to Odaily Planet Daily, Optimism posted on the X platform that the Superchain sorter revenue will be used for Retro Funding. In May, the total contribution from all members of Superchain was about 812 ETH. The Retro Funding fund pool mainly comes from two sources: all profits of OP Mainnet and 2.5% sorter revenue or 15% sorter profit of each Superchain member (whichever is higher). OP Collective expects a total contribution of about 812 ETH in May, which comes from OP Mainnet, Mode, Zora, Base, Metal L2 and Frax Finance. The average daily contribution of OP Collective is 27 ETH. On-chain builders who deploy contracts on Superchain are contributing revenue to OP Collective and contributing to Retro Funding. Earlier on May 23, Optimism announced on the X platform that the fourth round of retroactive public goods fundraising applications has been opened. 10 million OPs are dedicated to on-chain builders who deploy contracts on Superchain and generate block space needs. The application deadline is 03:00 on June 7, Beijing time.