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Rossi Karova
@bednost
zkSync vs Optimism? part 2 2. Transaction Finality: zkSync: Transactions are validated quickly because ZK-proofs ensure instant finality on-chain. Optimism: Transaction finality takes longer due to a 7-day challenge period to allow for fraud disputes. 3. Security: zkSync: Provides instant and secure verification through ZK-proofs, with no need for challenge periods. Optimism: Relies on the fraud-proof mechanism, meaning security is delayed during the challenge window. 4. Cost: zkSync: Typically offers lower transaction fees due to its highly efficient proof system, though ZK-Rollups are more complex to implement. Optimism: Has lower fees than Ethereum Layer 1, but may be slightly higher than zkSync due to on-chain data posting requirements.
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