The team has implemented fault proofs on Optimism mainnet, and users can now independently initiate withdrawals “without involvement from any trusted third parties.”
![](http://instacoin.news/wp-content/uploads/2017/11/logo-name-white-transparent-1.png)
The team has implemented fault proofs on Optimism mainnet, and users can now independently initiate withdrawals “without involvement from any trusted third parties.”