According to Wu, OP Labs announced the successful implementation of the fault proof system on the OP mainnet, which allows users to withdraw ETH and ERC-20 tokens without a trusted third party. In the future, the fault proof function will be extended to other OP Stack-based chains such as Base, Metal, Mode, and Zora. The Optimism Security Committee can intervene to ensure security when the system fails and has the right to reset the withdrawal request.