Base network has implemented permissionless fault proofs on its mainnet in October 2024, enabling independent verification and laying the technical foundation for reducing centralisation risks

Quotes that support claims

Base first launched its Fault Proofs on Base Mainnet in October, enabling permissionless proposals and permissionless challenges

In addition, fault proofs are permissionless now on Base, meaning anyone can verify or check the state of transactions from the network without relying on a central entity.