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- Optimistic Rollup Definition | CoinMarketCap
Optimistic rollups derive their security and decentralization from the base layer by publishing transaction results on-chain and relying on fraud proofs for correctness
- A Beginner-Friendly Guide to Optimistic Rollups (All You Need to Know)
Optimistic rollups operate securely with only honest nodes submitting fraud proofs when necessary Optimistic rollups also leverage monetary incentives to prevent spamming the network with false fraud proofs
- What are Optimistic Rollups and how do they work? - MoonPay
Optimistic Rollups: Prioritize scalability and cost-efficiency, relying on optimistic assumptions with periodic validation and the addition of the challenge period ZK-Rollups: Focus on privacy and security, utilizing zero-knowledge proofs to ensure transaction validity without revealing sensitive information of the underlying data
- Arbitrum Vs Optimism: Comparison Between Ethereums L2?
Arbitrum uses multi-round fraud proof whereas Optimism uses single-round fraud proof technology Both use optimistic rollups for higher scalability
- Fraud Proof Virtual Machine ∞ Term
The Fraud Proof Virtual Machine is a deterministic execution environment on Layer 1 that acts as the ultimate judge to verify disputed Layer 2 state transitions, enforcing the security of optimistic rollups Function and Determinism The fundamental requirement for the FPVM is absolute determinism
- Optimistic vs. ZK Rollups: Which Layer 2 Is Right for You?
Optimistic rollups work also well under heavy loads, but their design is more sensitive to fraud-proof disputes and data availability constraints Still, both systems handle far more than Ethereum Layer 1 alone
- Optimistic vs Zero-Knowledge Rollups: Which is best? - thirdweb
These optimistic rollups use a ‘fraud-proof’ mechanism to detect invalid transactions There is a ‘challenge’ or ‘dispute period’ within which someone can submit fraud proof to challenge a set of approved transactions If a fraud-proof is valid, it nullifies the faulty transaction and re-executes it to update the rollup’s state
- ZK-Rollups Explained: Zero-Knowledge Rollup Layer 2 Guide
ZK-rollups settle instantly with cryptographic proofs, offering speed and privacy, while optimistic rollups rely on fraud proofs and introduce a waiting period (typically one week) before finality
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