Decentralization is an important focus point for the crypto sector. However, not every new project or chain is immediately 100% decentralized. That’s, for example, the case with Base’s new L2.
Nonetheless, Base is working on having its L2 mainnet more decentralized. It implemented fault proofs to help with this process. So, what are these fault proofs at Base? We are going to take a closer look at them.
What Are the Fault Proofs on Base Mainnet?
The fault proofs on the Base mainnet achieve various decentralization aspects. For example, for validation and to engage the community more. The fault proofs have two important features.
- Permissionless output proposals.
- Permissionless challenges to output proposals.
Fault proofs are coming to Base mainnet on October 30th, marking a key milestone on the path to decentralization
This means anyone can monitor and permissionlessly challenge invalid withdrawals, removing the need for a trusted third party
The Base team has been collaborating…
— Base (@base) October 23, 2024
If an L2 doesn’t have fault proofs, it’s centralized. There’s a centralized proposer who can influence the state of an L2. The state of a blockchain changes with every transaction. So, when you introduce fault proofs, a chain becomes more decentralized. That’s because anyone can make claims about a chain’s state. So, no longer only a centralized party. As a result, if there’s a faulty or fraudulent claim, we can all challenge that claim. That’s why it is permissionless.
In this case, for Base’s L2, it means that anyone can withdraw funds from its L2 to an L1. However, there are no longer centralized actors involved or needed. Now, these fault proofs will become active on 30th October. This came together by collaborating with Optimism. They have fault proofs as part of their OP stack. Optimism has already implemented fault proofs on their mainnet since June 2024.
Now, withdrawing funds from their L2 to L1 is always a seven-day challenge period. That doesn’t change during or after the implantation. However, this seven-day period can now extend beyond seven days in case a transaction gets challenged. See the picture below.
Source: Optimism
Coinbase is behind this L2, hence the name Base. When we talk about the L1, that is Ethereum. So, once all L1 smart contracts get upgraded, it’s done atomically. This means that the upgrade happens in one single transaction.
Conclusion
Base’s L2 mainnet is about to add fault proofs. This will help to further decentralize the chain. It allows anyone to challenge transactions. There’s no further need for a centralized party. Base collaborated with Optimism on the fault proofs. Optimism already has fault proof implemented since earlier this year. They are part of their OP stack.
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