We architect and deploy battle-tested smart contracts that form the foundation of your Web3 application. Our development process is built for enterprise-grade security and mainnet readiness, ensuring your core logic is immutable and reliable from day one.
LABS
Services
ZK-Rollup Privacy Access Control
We design and implement smart contract-based access control systems using zk-SNARKs/STARKs on rollups like zkSync and Polygon zkEVM. Enable private membership verification and compliant, anonymous user gating for your dApp.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production and scale.
- Custom Development: Tailored
Solidity/Rustcontracts for DeFi, NFTs, DAOs, and enterprise use cases. - Security-First: Code reviews, formal verification, and integration with leading audit firms like OpenZeppelin and CertiK.
- Gas Optimization: Expert tuning to reduce transaction costs by up to 40% for end-users.
- Full Lifecycle Support: From ideation and development to deployment, verification, and ongoing maintenance on
EVM,Solana, orCosmoschains.
We deliver production-ready contracts with a 99.9% uptime SLA, enabling you to launch confidently and scale without technical debt.
key-features-cards
ZK-ROLLUP PRIVACY ACCESS CONTROL
Core Technical Capabilities We Deliver
We architect and implement production-grade ZK-Rollup solutions with granular, programmable privacy. Our focus is on delivering secure, scalable infrastructure that meets enterprise compliance and user sovereignty requirements.
01
Custom ZK-Circuit Development
Design and implement zero-knowledge circuits tailored for your specific access control logic (e.g., KYC-gated pools, role-based permissions). Built with Circom or Halo2 for optimal proving efficiency.
Circom 2.1+
Circuit Framework
Plonk / Groth16
Proving System
02
Privacy-Preserving State Management
Implement encrypted state transitions within the rollup. User data and transaction details remain private on-chain, with selective disclosure proofs for verifiers and auditors.
Semaphore
Identity Protocol
EIP-712 / 4337
Signature Standards
03
Secure Rollup Bridge & Prover Infrastructure
Deploy and manage high-availability bridge contracts (L1 <-> L2) and dedicated proving servers. Ensure fast, reliable proof generation and submission with 99.9% uptime SLAs.
99.9%
Prover Uptime SLA
< 5 min
Proof Finality
04
Comprehensive Security Audits
Deliver battle-tested code with audits from leading firms like Trail of Bits or Quantstamp. Our process includes circuit logic review, bridge security, and economic vulnerability analysis.
Trail of Bits
Audit Partner
Formal Verification
Methodology
05
Gas-Optimized Smart Contract Layer
Develop the on-chain verifier and manager contracts in Solidity/Vyper, optimized for minimal L1 gas costs. Implement efficient batch processing for rollup blocks.
Solidity 0.8.23+
Language
OpenZeppelin
Security Library
06
Integration & Developer Tooling
Provide full-stack SDKs, wallet connectors, and monitoring dashboards. Enable your team to easily manage permissions, view privacy metrics, and integrate with existing frontends.
TypeScript SDK
Primary SDK
Grafana / Prometheus
Monitoring
benefits
DELIVERABLES
Business Outcomes for Your Project
Our ZK-Rollup Privacy Access Control development delivers measurable results that accelerate your product roadmap and de-risk your launch.
01
Customizable Privacy Rules Engine
We deliver a configurable smart contract suite for defining user access tiers, transaction limits, and data visibility. This enables you to launch compliant DeFi products with built-in KYC/AML controls without sacrificing user experience.
5+
Pre-built Rule Templates
< 1 sec
Policy Enforcement
02
Gas-Optimized ZK Proof Generation
Our implementation uses custom circuits and proof batching to reduce on-chain verification costs by up to 70% compared to generic solutions. This directly lowers the operational cost of maintaining your privacy layer.
~70%
Gas Cost Reduction
Circom/Noir
Circuit Framework
03
Production-Ready Audit Package
Every deployment includes a comprehensive security audit report from our partner firms, covering the ZK circuits, access control logic, and integration points. We provide remediation support to ensure your mainnet launch meets enterprise security standards.
2
External Audit Firms
100%
Critical Issues Resolved
04
Multi-Chain Rollup Deployment
We architect your solution for deployment on Ethereum L1, Arbitrum, or Optimism, with a unified dashboard for managing privacy policies across chains. Future-proof your infrastructure with our modular design.
3+
Supported L2s
4 weeks
Avg. Time to Deploy
05
Real-Time Compliance Dashboard
Get a dedicated admin interface for monitoring user activity, adjusting privacy parameters, and generating audit trails for regulators. We handle the backend infrastructure with a 99.9% uptime SLA.
99.9%
Uptime SLA
Real-time
Analytics
Structured Development
ZK-Rollup Privacy Access Control Packages
Compare our tiered service packages for implementing custom zero-knowledge privacy and access control layers on your rollup.
| Feature / Specification | Starter | Professional | Enterprise |
|---|---|---|---|
Custom ZK-Circuit Design | |||
Access Control Smart Contracts | Basic (RBAC) | Advanced (Multi-Sig, Time-locks) | Custom Logic & Governance |
Privacy Module (ZK-SNARKs/STARKs) | Pre-built Templates | Custom-Built | Optimized & Proprietary |
Integration Support | Documentation | Direct Developer Support | Dedicated Integration Engineer |
Security Audit | Automated Scan Report | Manual Code Review | Full Audit by Top-3 Firm |
Deployment & Mainnet Launch | Guided | Managed | Full Turnkey |
Post-Launch Monitoring SLA | Community Support | 24/7 with 12h Response | 24/7 with 1h Response & Escalation |
Estimated Timeline | 6-8 weeks | 10-14 weeks | Custom |
Starting Price | $50,000 | $150,000 | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, four-phase approach designed for CTOs to deliver production-ready ZK-Rollup privacy systems with predictable timelines and zero security compromises.
01
Architecture & Design Review
We conduct a deep-dive technical assessment of your existing stack and privacy requirements. Our experts define the optimal ZK-Rollup architecture (zkSync, StarkNet, Polygon zkEVM), custom privacy circuits, and integration points to ensure scalability and maintainability.
1-2 weeks
Design Sprint
Zero-Knowledge
Circuit Design
02
Secure Circuit & Contract Development
Our team builds and rigorously tests the core privacy components: custom zero-knowledge circuits (using Circom or Cairo) for access control proofs and the associated on-chain verifier smart contracts. All code follows OpenZeppelin standards and is optimized for minimal proof generation cost.
Sol 0.8+/Cairo
Language
Gas-Optimized
Verifiers
03
Integration & Testing
We seamlessly integrate the ZK-Rollup privacy layer with your application's frontend and backend. This phase includes comprehensive testing: unit tests, integration tests, and end-to-end simulations of the full privacy flow on a testnet to validate user experience and system integrity.
Testnet
Deployment First
E2E Test Suite
Full Coverage
04
Audit, Deployment & Monitoring
Before mainnet launch, the entire system undergoes a professional security audit. We then manage the production deployment, configure real-time monitoring dashboards for proof generation latency and success rates, and provide ongoing support for upgrades and optimizations.
External Audit
Security Mandatory
24/7
System Monitoring
Strategic Comparison
Build vs. Buy: ZK-Rollup Privacy Access Control
Evaluate the total cost, risk, and time commitment of developing a custom ZK-Rollup privacy solution versus partnering with Chainscore's managed service.
| Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Production | 6-12+ months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Core Expertise Required | ZK-Circuits, Solidity, L2 Architecture | Your Application Logic |
Security & Audit Burden | High (Unaudited, Custom Code) | Low (Pre-Audited, Battle-Tested Modules) |
Ongoing Maintenance & Upgrades | Dedicated 2-3 Engineer Team | Fully Managed Service |
Scalability & Performance Tuning | Your Responsibility | Optimized & Monitored by Chainscore |
Integration Support | Self-Service | Dedicated Solutions Architect |
Total Cost of Ownership (Year 1) | $400K - $800K+ | $75K - $200K |
ZK-Rollup Privacy Access Control
Frequently Asked Questions
Get clear answers on implementation, security, and process for our enterprise-grade ZK-Rollup privacy solutions.
A standard implementation for a new or existing application takes 4-8 weeks. This includes design, custom circuit development, smart contract integration, and on-chain deployment. For complex, multi-asset protocols with custom logic, timelines extend to 10-12 weeks. We provide a detailed project plan within the first week of engagement.
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