Optimism has begun testing the Fault Proof feature.

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One of the largest rollup networks on Ethereum has finally begun testing Fault Proof. Optimism, as a "Layer 2" blockchain, bundles user transactions and settles them on Ethereum at a low cost. It has played a leading role in expanding accessibility to the second-largest blockchain ecosystem, serving as the template for cryptocurrency exchange Coinbase's own Layer 2 network, Base.

However, there's been a problem with using Optimism today: Fault Proof, a crucial component for security in Layer 2, doesn't currently exist. But that's about to change soon.

On Tuesday, the primary development company behind the Optimism blockchain, OP Labs, will begin testing Fault Proof on Ethereum's Sepolia test network. Ahead of the new deployment, Optimism introduced an initial version of Fault Proof on another Ethereum test network, Goerli, back in October. Optimism's co-founder and CEO of OP Labs, Karl Floersch, expects these proofs to enter Ethereum's mainnet later this year, and the deployment on Sepolia will bring the team closer to this goal than ever before.

This technology will help ensure the safe withdrawal of funds from the network and has been brewing for a long time, drawing embarrassing criticism from competing blockchain advocates.

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