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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

ZK-Rollup Privacy-Preserving Credentials

Implement compliant, private on-chain reputation and credential systems using ZK-rollups. We deliver verifiable attestations on zkSync and StarkNet that protect user data while meeting regulatory requirements.
Chainscore © 2026
overview
CORE ENGINEERING

Smart Contract Development

Secure, audited smart contracts built to your exact specifications, from concept to mainnet deployment.

We architect and deploy production-grade smart contracts that power your core business logic. Our process delivers secure, gas-optimized, and upgradeable code ready for high-value transactions.

  • Full Lifecycle Development: From initial spec and Solidity/Rust coding to deployment on EVM/Solana and post-launch monitoring.
  • Security-First Approach: All contracts undergo rigorous internal audits and are built with OpenZeppelin standards. We prepare for third-party audits from firms like CertiK or Quantstamp.
  • Measurable Outcomes: Achieve >99.9% uptime, gas costs reduced by 20-40%, and a clear path for future upgrades via proxy patterns.
key-features-cards
ZK-CREDENTIALS INFRASTRUCTURE

Core Technical Capabilities We Deliver

We architect and deploy the foundational systems that power private, verifiable credentials on ZK-Rollups. Our solutions are built for production, delivering enterprise-grade security, developer velocity, and seamless user experiences.

benefits
DELIVERABLES

Business Outcomes for Your Project

We deliver production-ready ZK-credential systems with measurable impact on your compliance, user growth, and operational security.

02

Enhanced User Onboarding & Trust

Reduce sign-up friction by 70% with reusable, portable credentials. Users prove eligibility (age, accreditation, citizenship) once, then use it across your dApp ecosystem without repeating KYC.

70%
Faster Onboarding
Portable
Cross-dApp Credentials
03

Secure, Scalable Credential Infrastructure

Enterprise-grade ZK-rollup infrastructure for issuing and verifying millions of credentials. Built with Plonk/Halo2 circuits, audited by leading security firms, and backed by a 99.9% uptime SLA.

99.9%
Uptime SLA
Plonk/Halo2
Proof Systems
04

Reduced Operational Cost & Risk

Automate compliance checks and credential revocation, cutting manual review costs by over 60%. Eliminate the liability of storing centralized PII databases vulnerable to breaches.

60%
Lower OpEx
No PII Storage
Risk Eliminated
05

Faster Time-to-Market

Go from concept to production in < 4 weeks using our pre-audited ZK circuit libraries and modular credential SDKs. Integrate with existing wallets and identity providers seamlessly.

< 4 weeks
To Production
Modular SDK
Integration
The Infrastructure Decision

Build vs. Buy: Implementing Private Credentials

Compare the total cost, risk, and time commitment of building a ZK-credential system in-house versus using Chainscore's managed service.

FactorBuild In-HouseChainscore Managed Service

Time to Production

6-12 months

4-8 weeks

Initial Development Cost

$250K - $600K+

$50K - $150K

Security Audit & Pen-Testing

Required ($50K-$100K)

Included (CertiK, OpenZeppelin)

ZK-Circuit Expertise

Hire 2-3 specialists

Provided by our team

Ongoing Maintenance (Year 1)

$120K+ (2 engineers)

Optional SLA from $30K/year

Uptime & Monitoring

Your responsibility

99.9% SLA with 24/7 alerting

Protocol Upgrades (e.g., EIPs)

Manual, high-risk

Managed, zero-downtime

Total Year 1 Cost

$420K - $820K+

$80K - $180K

how-we-deliver
CLIENT-CENTRIC DELIVERY

Our Development & Integration Process

A transparent, phased approach designed to deliver production-ready ZK-credential systems with minimal operational overhead for your team.

01

Architecture & Protocol Design

We design the optimal ZK circuit architecture (Circom, Noir) and credential schema (W3C VC, Iden3) for your use case, ensuring scalability and privacy from day one.

2-4 weeks
Design Sprint
3+
Architecture Options
02

Circuit Development & Auditing

Our team builds and rigorously tests the core zero-knowledge circuits. Every circuit undergoes internal review and is prepared for formal security audits by leading firms.

100%
Test Coverage
CertiK, Halborn
Audit Partners
03

Smart Contract Integration

We deploy and integrate the necessary on-chain verifier contracts (Solidity, Cairo) with your application, handling gas optimization and multi-chain deployment strategies.

< 1 sec
Verification Time
EVM, Starknet, zkSync
Supported Chains
04

SDK & API Development

Receive a fully documented TypeScript/Go SDK and REST/GraphQL APIs for seamless integration into your frontend and backend, abstracting ZK complexity.

24/7
Developer Support
Comprehensive
API Docs
05

Staging & Security Hardening

We deploy your system to a staging environment for end-to-end testing, load testing, and final security review before mainnet launch.

99.9%
Testnet Uptime SLA
Pen-Tested
Infrastructure
06

Production Launch & Monitoring

We manage the mainnet deployment and provide ongoing monitoring dashboards for circuit usage, gas costs, and system health, ensuring long-term reliability.

< 4 hours
Go-Live Window
Real-time
Performance Dashboards
tech-stack
BUILT FOR ENTERPRISE

Proven Technology Stack

Our ZK-Rollup privacy credentials are built on a battle-tested stack, delivering enterprise-grade security, scalability, and developer experience. We handle the complex cryptography so you can focus on your application.

ZK-Rollup Credentials

Frequently Asked Questions

Common questions about our end-to-end development and deployment of privacy-preserving credential systems using ZK-Rollups.

A standard ZK-Rollup credential system for a single application (e.g., a private KYC layer) typically deploys in 4-6 weeks. Complex, multi-protocol integrations or custom zero-knowledge circuit designs can extend to 8-12 weeks. We provide a detailed project plan with weekly milestones after the initial technical scoping session.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team