A Building Block for L1-L2 Interoperability StarkWare StarkWare StarkWare · Follow Published in StarkWare · 5 min read · Mar 10, 2021 53 This post will present the solution that StarkEx offers for supporting Fast Withdrawals: the ability to withdraw funds from L2 to any L1 address, in blockchain time. This solution is independent of the frequency with which validity proofs are generated by the L2 Operator. The Fast Withdrawal functionality already runs on Ethereum Mainnet in StarkEx (starting...