ChainCatcher message, the Base mainnet will introduce fault proofs on October 30, marking an important step towards decentralization. With the introduction of this mechanism, anyone can permissionlessly monitor and challenge invalid withdrawal transactions, eliminating the need for trust in third parties.The Base team stated that they have been working closely with Optimism to ensure the smooth launch and security upgrade of fault proofs. During the upgrade, all pending withdrawal transactions will need to be re-verified.

ChainCatcher message, Base announced the launch of Fault proofs on the Base testnet, allowing anyone to propose or challenge proposals regarding L2 state in a permissionless manner.Base stated that Fault proofs are a foundational step towards decentralization. Another important step in achieving the first phase of decentralization for Base is the addition of a Security Council to its contract upgrade keys. Once this step is completed, Base can only upgrade contracts based on actions taken by the Optimism Security Council, which only takes actions approved by Optimism Governance.