We architect and deploy custom smart contracts that power your core business logic. Our development process ensures security-first design, gas optimization, and compliance with standards like ERC-20, ERC-721, and ERC-1155.
LABS
Services
ZK-Rollup Circuit Audit & Optimization
Security-first auditing and performance optimization for your existing ZK-rollup circuits. We identify vulnerabilities and inefficiencies to reduce proving costs, increase throughput, and ensure protocol integrity.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Audited Code: Every contract undergoes rigorous review using tools like Slither and MythX, followed by a formal audit report.
- Gas Efficiency: Optimized for cost, reducing user transaction fees by up to 40% on average.
- Upgradeable Architecture: Built with upgrade patterns (UUPS/Transparent Proxy) for seamless future iterations without migration.
Deliver a secure, audited MVP in as little as 2 weeks, with a 99.9% uptime SLA for mainnet deployments.
Our engineers specialize in Solidity 0.8+, Vyper, and Rust for Solana, implementing proven libraries like OpenZeppelin. We handle the full lifecycle from specification and testing to deployment and verification on Etherscan.
key-features-cards
END-TO-END SECURITY & PERFORMANCE
Our ZK-Rollup Audit & Optimization Services
We provide specialized audits and performance engineering for ZK-Rollup circuits and provers, ensuring your scaling solution is secure, efficient, and production-ready.
01
Circuit Security Audit
Comprehensive review of your ZK-SNARK/STARK circuits for cryptographic soundness, logic flaws, and side-channel vulnerabilities. We deliver a detailed report with actionable fixes, modeled after industry standards from firms like Trail of Bits and OpenZeppelin.
100+
Vulnerability Checks
5-10 days
Typical Turnaround
02
Prover Performance Optimization
Analyze and optimize your prover's computational efficiency. We target bottlenecks in constraint generation, witness computation, and proof generation to reduce operational costs and improve user experience.
30-70%
Gas Cost Reduction
< 2 sec
Target Proof Time
03
Verifier Contract Audit
Security assessment of your on-chain verifier smart contracts. We ensure correct implementation of elliptic curve pairings, proof verification logic, and state update mechanisms to prevent fund loss.
Zero Critical
Guarantee
Solidity 0.8+
Standard
04
Integration & Upgrade Review
Audit the integration points between your rollup's sequencer, data availability layer, and bridge contracts. We provide a safety review for protocol upgrades and mainnet deployment readiness.
Full E2E Test
Coverage
Pre-Launch
Critical Phase
05
Gas & Cost Analysis
Detailed breakdown of L1 settlement costs and L2 transaction fees. We provide optimization strategies for calldata usage, batch sizing, and proof aggregation to minimize your operational overhead.
Up to 60%
Settlement Savings
Cost Model
Delivered
06
Custom Circuit Design Review
Architectural review for custom ZK-circuits implementing complex business logic (e.g., private transactions, custom DEX AMMs). We ensure your design is optimal, maintainable, and secure before implementation.
Expert
Circom/Noir/Halo2
Design Spec
Deliverable
benefits
STRATEGIC ADVANTAGE
Business Outcomes: Beyond the Technical Audit
A ZK-Rollup circuit audit is a technical necessity; our optimization delivers a market-ready product. We ensure your infrastructure is not just secure, but also performant, cost-effective, and investor-ready.
01
Investor Confidence & Funding Readiness
A Chainscore-verified audit report is a gold standard for due diligence. We provide the technical validation VCs and institutional partners require to secure funding and strategic partnerships.
100%
Projects Funded Post-Audit
Certified
Trail of Bits Methodology
02
Production-Ready Performance
We don't just flag issues; we optimize for mainnet. Our engineers refactor circuits to reduce prover costs by up to 40% and cut verification gas, directly lowering your end-user transaction fees.
≤ 40%
Proving Cost Reduction
Optimized
L1 Gas Verification
03
Accelerated Time-to-Market
Our integrated audit-and-fix workflow resolves critical vulnerabilities in parallel, not sequentially. We provide actionable remediation guidance to shave weeks off your launch timeline.
2-4 Weeks
Typical Audit Cycle
Parallel
Remediation Support
04
Regulatory & Compliance Posture
We map circuit logic and zero-knowledge proofs to key regulatory frameworks. Our documentation provides clear evidence of data privacy (ZK) and deterministic state transitions for compliance reviews.
GDPR-Ready
Data Privacy Design
Documented
Proof Determinism
05
Long-Term Protocol Security
Receive a prioritized roadmap for future upgrades. We identify architectural risks and provide a strategic plan for implementing circuit upgradability patterns and monitoring for state validation.
Proactive
Risk Roadmap
Secure
Upgrade Pathways
06
Team Knowledge Transfer
We ensure your engineers understand the "why" behind every finding. Post-audit workshops and detailed documentation empower your team to write more secure, efficient circuits in the future.
Hands-on
Remediation Workshops
Comprehensive
Internal Docs
Choose the right level of security and support for your ZK-Rollup
Structured Audit & Optimization Tiers
Our tiered service model is designed to match the complexity of your ZK-Rollup circuit and the criticality of your application, from pre-launch validation to enterprise-grade production support.
| Audit & Optimization Scope | Starter | Professional | Enterprise |
|---|---|---|---|
ZK Circuit Logic & Constraint Audit | |||
Gas & Performance Optimization Report | |||
Custom Prover/Verifier Code Review | |||
Integration & Bridge Smart Contract Audit | |||
Formal Verification (Key Properties) | Limited Scope | Full Scope | |
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Post-Audit Consultation & Best Practices | 1 session | 3 sessions | Ongoing |
Production Monitoring & Alerting Setup | |||
Priority Response SLA | N/A | 24 business hours | 4 hours, 24/7 |
Estimated Timeline | 2-3 weeks | 4-6 weeks | 6-8 weeks |
Starting Investment | $25,000 | $75,000 | Custom Quote |
how-we-deliver
STRUCTURED, RIGOROUS, TRANSPARENT
Our Proven Audit Methodology
Our systematic approach to ZK-Rollup circuit auditing combines deep cryptographic expertise with battle-tested security practices, delivering actionable insights and verifiable security guarantees.
01
Architecture & Design Review
We conduct a foundational assessment of your ZK-SNARK/STARK architecture, including trusted setup assumptions, circuit logic, and integration with your L1 settlement layer (Ethereum, Polygon zkEVM, etc.). This identifies systemic risks before line-by-line analysis.
100%
Architecture Coverage
Phase 1
Audit Process
02
Cryptographic Circuit Analysis
Deep inspection of constraint systems, zero-knowledge proof logic, and elliptic curve operations for vulnerabilities like soundness errors, side-channel leaks, and implementation flaws in Plonk, Groth16, or other proving systems.
Zero
Soundness Tolerated
Phase 2
Audit Process
03
Smart Contract & Verifier Audit
Security review of the on-chain verifier contract and associated bridge/sequencer logic. We check for reentrancy, access control flaws, and gas optimization to ensure secure and cost-effective L1 interaction.
OpenZeppelin
Standards Compliant
Phase 3
Audit Process
04
Performance & Gas Optimization
Beyond security, we analyze circuit efficiency and prover/verifier gas costs. We provide specific recommendations to reduce proving time and on-chain verification costs by up to 40% without compromising security.
≤ 40%
Cost Reduction
Phase 4
Audit Process
05
Comprehensive Reporting & Remediation
Receive a detailed report with CVSS-scored vulnerabilities, proof-of-concept exploits, and clear remediation guidance. We include a follow-up review to verify all critical fixes are implemented correctly.
72h
Report Delivery
Guaranteed
Re-Audit
06
Continuous Security Posture
Post-audit, we provide integration guidance for monitoring, incident response, and upgrade procedures for your zk-rollup. Establish a foundation for long-term security maintenance and future scaling.
Ongoing
Support
SLA-Based
Monitoring
security-approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom Solidity/Rust smart contracts with enterprise-grade security as the foundation. Every line of code undergoes rigorous audits using industry-standard tools like Slither and Mythril, followed by manual review for logic flaws and gas optimization.
- Full Lifecycle Support: From initial design and
OpenZeppelinintegration to deployment, verification, and ongoing maintenance. - Protocol-Specific Expertise: Custom logic for
ERC-20,ERC-721,ERC-1155, staking systems, multi-sig wallets, and cross-chain bridges. - Gas-Optimized Code: We reduce transaction costs by an average of 15-40% through efficient data structures and contract patterns.
Deploy with confidence. Our contracts power dApps handling $100M+ in TVL, backed by a $1M security guarantee on audited code.
Expert Guidance for Your Zero-Knowledge Infrastructure
ZK-Rollup Audit & Optimization FAQs
Get clear, technical answers to the most common questions about our security-first audit process and performance optimization services for ZK-rollup circuits.
We employ a multi-layered audit methodology combining automated analysis with deep manual review. Our process includes: 1) Circuit Logic Verification against the original specification, 2) Constraint System Analysis for soundness and completeness, 3) Cryptographic Primitive Review of SNARK/STARK libraries (Plonk, Groth16, etc.), 4) Integration Testing with the sequencer and smart contracts, and 5) Gas & Performance Profiling. This approach has secured over $500M in TVL across 50+ zero-knowledge projects.
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