Fraud Proof

Optimistic Rollup安全升级与欺诈证明机制深度解析 Vitalik Buterin强调提升Rollup标准的重要性，目前仅Arbitrum和Optimism达到阶段1安全等级。本文深入探讨Optimistic Rollup的欺诈证明机制，分析其面临的安全挑战与解决方案，对比ZK Rollup技术路径，并展望欺诈证明在再质押、数据可用性层等领域的扩展应用。 核心发现包括：1）主流Optimistic Rollup普遍采用7天提现延迟应对审查攻击；2）Arbitrum BoLD通过3600ETH保证金和棋钟机制防范延迟攻击；3）Cartesi Dave的锦标赛结构可指数级提升防御优势；4）Kroma首创ZK故障证明实现主网质疑案例。研究指出，随着BoLD和争议游戏V2等方案落地，预计2024年底至2025年将出现首批阶段2 Rollup，实现完全以太坊级安全性。 技术演进呈现三大趋势：1）ZK技术将优化欺诈证明效率，Cartesi已采用RISC Zero进行改进；2）多重证明机制成为安全升级关键，OP Stack正集成Cannon与asterisc双系统；3）混合型Rollup可能成为终极形态，结合Optimistic的日常运营与ZK的快速提现优势。

Eclipse’s Canonical Ethereum Bridge and Proving System consists of three layers: Execution (SVM transaction execution), Settlement (Ethereum-based bridge and fraud proofs), and Data Availability (Celestia for data blobs). The bridge enables deposits, withdrawals, and fraud proofs, leveraging Celestia’s Blobstream for data verification. Fraud proofs ensure correct state transitions by validating transaction inputs and outputs. Eclipse’s design avoids global state trees, using transaction chaining for efficiency. The system includes safeguards against invalid batches, with verifiers able to challenge incorrect commitments. Eclipse’s modular L2 architecture emphasizes trust minimization and scalability.