Optimistic Rollup Fraud Proof Architecture Design

A complete, modular fraud proof mechanism for challenging invalid state transitions. Includes the interactive verification game logic, dispute resolution contracts, and a watcher service for automatic challenge initiation.

Client Value: Enforce L1-level security guarantees on your rollup, protecting user funds from malicious sequencers.

High-availability sequencer node implementation with configurable batch posting logic and economic security modeling for proposer bonds. Includes failover mechanisms and MEV-resistance strategies.

Client Value: Ensure reliable block production and data availability, with clear slashing conditions to deter malicious behavior.

Architecture for publishing transaction data to Ethereum calldata or alternative DA layers (e.g., Celestia, EigenDA). Includes cost-optimization logic and data compression techniques to minimize L1 gas fees.

Client Value: Drastically reduce operational costs while maintaining the cryptographic guarantees required for secure fraud proofs.

Secure, trust-minimized bridge contracts for asset deposits and withdrawals between L1 and L2. Implements the standard 7-day challenge period with optimized UX for fast exits via liquidity providers.

Client Value: Provide users with a secure, predictable, and liquid bridge experience, a critical factor for adoption and trust.

Production-grade execution client (geth/foundry-based) and verifier node software. Pre-configured for syncing, state management, and participating in the fraud proof process.

Client Value: Give your team and community the tools to independently verify the chain's state, ensuring decentralization and censorship resistance.

Comprehensive security architecture document, threat model, and a suite of integration tests. The design follows OpenZeppelin standards and is pre-audit ready for firms like Trail of Bits or ConsenSys Diligence.

Client Value: Accelerate your security audit process with a vetted, well-documented codebase, reducing time-to-mainnet and mitigating critical risks.

We begin with a formal threat model, mapping attack vectors specific to your optimistic rollup. This identifies critical vulnerabilities in fraud proof logic, sequencer incentives, and data availability layers before design begins.

We create a machine-verifiable specification of your fraud proof system's state transitions and liveness guarantees. This formal model acts as the single source of truth for your development team, preventing logic errors.

We simulate transaction costs for fraud proof submission, verification, and challenge periods under mainnet conditions. This ensures your rollup's economic security is viable and user fees are predictable.

We deliver detailed integration specs for data availability solutions (EigenDA, Celestia), sequencer design, and bridge contracts. This ensures seamless interoperability and avoids vendor lock-in.

We produce comprehensive technical documentation, including a security audit scope, that aligns with the requirements of top-tier firms like Trail of Bits and OpenZeppelin, accelerating your audit timeline.

We provide a phased engineering roadmap with clear milestones, resource estimates, and risk mitigation strategies. This translates the architecture into an executable development plan for your team.