Ethereum founder Vitalik Buterin’s idea for the Ultra Secure Blockchain

Vitalik Buterin, the founder of Ethereum has proposed a solution to build one ultra-secure blockchain. Commenting on the classic debate of optimistic rollups vs ZK rollups, Buterin proposed a hybrid model that can take the best of both worlds.

The debate between rollups

Rollups are Layer 2 solutions that aim to improve the scalability of a blockchain. Digests can combine a bunch of transactions into one and post the final state. Currently, at its best, Ethereum can handle around 20-30 TPS. Digests can improve the speed of transactions several times.

There are two main types of rollups: optimistic rollups and ZK rollups. Optimistic rollups have a pessimistic character which believes that all transactions are correct until proven otherwise. They combine all the transactions into one without checking their authenticity. Then they give a deadline for anyone to dispute the authenticity. On the other hand, ZK Digest checks the authenticity of each transaction.

While ZK proofs are more secure, they are often expensive to generate. Vitalik Buterin tries to solve this problem.

Vitalik’s proposal for a plan

Buterin’s plan takes the best of both worlds. He suggested building a rollup that would combine optimistic rollups and ZK rollups. According to his plan, a blockchain would publish a block. Then the chain would wait 24 hours to submit a challenge. If there is no challenge to the block, a ZK-SNARK, which is a type of ZK proof, will be published.

If there is a challenge to the authenticity of a transaction, the decision will be made by consulting between the optimistic assembly, the zero-knowledge assembly, and the overall blockchain governance. Any disputes between optimistic roll-up and ZK collection will be resolved by the board.

Rollups are currently a very hot topic in the Ethereum ecosystem. Polygon just launched a zero-knowledge EVM that would be compatible with any smart contract that is also compatible with the Ethereum network. Following Polygon’s announcement, Matter Labs And Scroll also announced their zkEVMs.

Nidhish is a technology enthusiast, who aims to find elegant technical solutions to solve some of society’s biggest problems. He is a firm believer in decentralization and wants to work on the mainstream adoption of Blockchain. He is also big on almost every popular sport and loves to talk about a wide range of topics.

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