We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your specific business logic. Our development process ensures your protocol is built on a robust foundation from day one.
LABS
Services
ZK & Optimistic Rollup Bridge Security
Specialized security review of L1<>L2 bridge architectures for rollups. We verify fraud proof systems, proof verification circuits, and challenge mechanisms to ensure the security of bridged assets.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
- Security-First Development: Code audited against common vulnerabilities using industry-standard tools and patterns from
OpenZeppelin. - Gas Optimization: Every line is written for efficiency, reducing user transaction costs by up to 30%.
- Full-Stack Integration: Seamless connection to your front-end and backend via
ethers.js/web3.jsand custom APIs. - Comprehensive Testing: Unit, integration, and forked mainnet testing to ensure reliability before launch.
From initial concept to mainnet deployment, we handle the entire lifecycle, delivering a battle-tested contract suite in as little as 2-4 weeks.
key-features-cards
PROVEN FRAMEWORK
Our Bridge Security Audit Methodology
Our systematic, multi-layered audit process is designed to identify and eliminate critical vulnerabilities before they reach production, ensuring your cross-chain bridge meets the highest security standards.
01
Architectural & Economic Review
We analyze the bridge's core design, consensus mechanisms, and economic incentives for centralization risks, liveness failures, and incentive misalignment. This includes evaluating the security of the underlying rollup's data availability and proving systems.
100%
Design Coverage
5+
Economic Models
02
Smart Contract Deep Dive
Manual and automated review of all bridge contracts (deposit, withdrawal, verification, governance) for logic errors, reentrancy, and access control flaws. We test against the latest attack vectors specific to ZK and Optimistic rollup bridges.
100%
Code Coverage
OWASP Top 10
Compliance
03
Cryptographic Verification
Rigorous assessment of all cryptographic primitives, including ZK-SNARK/STARK circuits, signature schemes, and hash functions. We verify proof correctness, soundness assumptions, and implementation against side-channel attacks.
Zero-Knowledge
Circuit Audits
Formal Methods
Verification
04
Integration & Upgrade Path Analysis
We audit the integration with external dependencies (oracles, relayers, sequencers) and evaluate the security of upgrade mechanisms and admin key management to prevent governance attacks and ensure smooth, safe evolution.
All External
Dependencies
Timelock+Multisig
Upgrade Safety
05
Simulation & Attack Testing
Execution of adversarial simulations, including stress tests, front-running scenarios, and network partition attacks. We simulate bridge halts, mass withdrawals, and validator failures to validate recovery procedures.
50+
Attack Vectors
Real-World
Conditions
06
Comprehensive Reporting & Remediation
Delivery of a prioritized vulnerability report with clear severity ratings, proof-of-concept exploits, and actionable remediation guidance. We provide follow-up reviews to verify fixes are implemented correctly.
Detailed
POC Exploits
Guaranteed
Follow-Up
benefits
SECURITY FIRST
Why a Specialized Bridge Audit is Non-Negotiable
Standard smart contract audits miss the unique attack vectors of cross-chain bridges. Our specialized assessments target the critical logic that secures billions in TVL.
Deliverables & Timeline
ZK & Optimistic Rollup Bridge Security Audit Packages
A detailed breakdown of our security audit packages for cross-chain bridges, from initial code review to ongoing protection.
| Audit Deliverable | Starter Audit | Professional Audit | Enterprise Security |
|---|---|---|---|
Smart Contract Code Review | |||
ZK Circuit / Fraud Proof Analysis | |||
Formal Verification Report | |||
Economic & Incentive Model Review | |||
Full Technical Report (PDF) | |||
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Deployment Verification & Support | |||
Post-Launch Monitoring (30 days) | |||
Emergency Response SLA | N/A | 48h | 4h |
Ongoing Threat Intelligence | |||
Estimated Timeline | 2-3 weeks | 3-4 weeks | 4-6 weeks |
Starting Price | $15,000 | $45,000 | Custom Quote |
process-walkthrough
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
We architect and deploy custom smart contracts that form the backbone of your application. Our process includes formal verification and comprehensive audits to eliminate vulnerabilities before mainnet deployment.
- Custom Logic: Build on
ERC-20,ERC-721, or bespoke standards for DeFi, NFTs, and DAOs. - Gas Optimization: Achieve up to 40% lower transaction costs through efficient code patterns.
- Security First: Adhere to OpenZeppelin standards and undergo third-party audits from firms like CertiK or Quantstamp.
- Full Lifecycle: From initial spec to deployment and post-launch monitoring on Ethereum, Polygon, or Solana.
Deploy with confidence. We guarantee zero critical vulnerabilities in production and provide a 99.9% uptime SLA for contract availability.
Why Specialized Bridge Security Matters
Chainscore vs. Generic Smart Contract Audits
Generic audits often miss the complex, cross-chain attack vectors specific to rollup bridges. Our service is engineered for the unique security demands of ZK and Optimistic Rollup infrastructure.
| Security Focus | Generic Smart Contract Audit | Chainscore Bridge Security Audit |
|---|---|---|
Cross-Chain State Verification | ||
Fraud Proof & Validity Proof Analysis | Surface-level | In-depth (Circuit + Game Theory) |
Sequencer & Prover Centralization Risks | ||
Bridge-Specific Economic Attacks (e.g., TVL draining) | ||
Standard Smart Contract Vulnerabilities | ||
Final Report & Remediation Support | PDF Report | Live Session + Priority Re-Audit |
Auditor Expertise | General Solidity | Cryptography & Rollup Protocol Specialists |
Time to Completion | 2-3 weeks | 3-4 weeks |
Typical Engagement Cost | $10K - $30K | $25K - $75K+ |
Technical & Process Details
Bridge Security Audit FAQs
Get clear answers on our methodology, timeline, and deliverables for ZK and Optimistic Rollup bridge security audits. We audit the code that secures billions in cross-chain value.
Our methodology is a multi-layered, manual-first process. For ZK Rollup bridges, we focus on the cryptographic soundness of the proof system (e.g., Plonk, Groth16), the correctness of the state transition logic, and the trust assumptions of the prover/verifier setup. For Optimistic Rollup bridges, we conduct deep analysis of the fraud proof mechanism, challenge period logic, and sequencer/validator incentive alignment. Every audit includes: 1) Architecture Review, 2) Manual Line-by-Line Code Review, 3) Static & Dynamic Analysis using Slither and Foundry, 4) Economic & Game Theory Modeling, and 5) Final Report with P1-P4 Severity Findings.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall