Base

Self sequence

In the event of a sequencer failure, users can force transactions to be included in the project's chain by sending them to L1. There can be up to a 12h delay on this operation.

Fraud proofs (1R, ZK)

Fraud proofs allow actors watching the chain to prove that the state is incorrect. Single round proofs (1R) prove the validity of a state proposal, only requiring a single transaction to resolve. A fault proof eliminates a state proposal by proving that any intermediate state transition in the proposal results in a different state root. For either, a ZK proof is used.

Onchain

All of the data needed for proof construction is published on Ethereum L1.

None

There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable. Upgrades need to be approved by 2 parties: the Base Coordinator Multisig and the Base Security Council.

Self propose

Anyone can be a Proposer and propose new roots to the L1 bridge.