- Base plans to implement fault proofs on its mainnet.
- The upgrade allows users to independently confirm the validity of withdrawals.
Ethereum Layer 2 (L2) scaling solution Base is launching fault proofs on its mainnet on October 30, 2024. This upgrade aims to decentralize by enabling permissionless validation and improving security for users on the network.
Base stated:
This upgrade introduces two capabilities: to propose Permissionless Output Proposals in which only a centralized proposer could create and submit output roots about the Base’s state. With the upgrade, any party can submit claims about the L2’s state. The Permissionless Challenges to Proposals enables anyone to challenge these output proposals.
On the other hand, the Base team has collaborated with another Ethereum Layer 2 scaling solution, Optimism, to ensure the integration of fault proofs. This aimed at creating a seamless processing of the upgrade and ensuring the pending withdrawals were re-proven using the new fault proof system.
The Fault Proof System
The fault proof system will be involved in the withdrawals to prove and finalize transactions. The DisputeGameFactory contract will replace the L2OutputOracle for proposing output root statements as part of the shift.
Moreover, the users withdrawing funds from L2 to L1 should undergo the standard 7-day challenge period. The new fault proof system will process withdrawals made during or after the upgrade. These transactions will take another 7 days for finalization but may face further delays if any conflicts arise.
Besides, the bridge operators on the Base Mainnet must notify users about the upcoming fault proof activation. Also to ensure compatibility with bridging logic to align with new L1 contracts. Notably, these contract upgrades will be managed atomically, and no additional action is required from node operators. Within a single transaction, all the affected L1 contracts will be upgraded.
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