We architect and deploy production-grade smart contracts that are secure by design. Our process includes formal verification, comprehensive unit testing, and third-party audits from firms like CertiK and OpenZeppelin to mitigate risk and protect your assets.
LABS
Services
ZK-Rollup Privacy-Preserving Identity Aggregation
We develop custom layer-2 identity aggregation services using ZK-rollup technology. We batch-verify user credentials off-chain and publish only compressed, privacy-preserving proofs on-chain for regulatory compliance at scale.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contract development for DeFi, NFTs, and enterprise applications.
- Custom Logic: Build
ERC-20,ERC-721,ERC-1155, and bespoke contracts for DeFi protocols, DAOs, and marketplaces. - Gas Optimization: We write efficient code to reduce transaction costs by 15-40%, directly impacting user adoption and protocol economics.
- Upgradeable Architecture: Implement proxy patterns (
UUPS,Transparent) for seamless, secure future upgrades without migration.
From initial concept to mainnet deployment, we deliver contracts you can trust with a 99.9% uptime SLA and post-launch monitoring.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Architecture & Capabilities
Our ZK-Rollup identity aggregation platform is engineered for production at scale, delivering verifiable privacy, seamless integration, and robust security for your FinTech or Web3 application.
01
Zero-Knowledge Proof Engine
Built on zk-SNARKs (Groth16/Plonk) for efficient, verifiable computation. We generate succinct proofs that validate aggregated identity states without revealing underlying user data, ensuring privacy by design.
< 2 sec
Proof Generation
256-bit
Security Level
02
Modular Rollup Architecture
Custom-built sequencer and prover nodes with EVM-compatible execution. Supports batched settlement to Ethereum L1 or other base layers, providing finality and data availability with minimal gas costs.
10,000+ TPS
Peak Capacity
< $0.01
Avg. Cost/Tx
03
Identity Schema & Aggregation Layer
Flexible framework for defining and aggregating verifiable credentials (W3C VC), on-chain reputations, and social graphs. Supports selective disclosure and cross-protocol attestation.
10+ Sources
Supported Protocols
Custom
Schema Design
05
Security & Compliance Core
Architected with OpenZeppelin standards and undergoes regular audits by firms like Trail of Bits. Features multi-sig governance, rate limiting, and compliance-ready logging for regulated environments.
99.9% SLA
Uptime
Quarterly
Security Audits
06
Managed Node Infrastructure
Fully hosted and monitored sequencer, prover, and data availability nodes. Includes automatic scaling, real-time health checks, and cross-region redundancy for maximum reliability.
< 50 ms
P99 Latency
24/7
Incident Response
benefits
DELIVERABLES
Business Outcomes for Your Product
Our ZK-Rollup Privacy-Preserving Identity Aggregation service delivers concrete, measurable results for your product's security, compliance, and user experience.
01
Regulatory Compliance by Design
Achieve GDPR, CCPA, and MiCA compliance without sacrificing user experience. Our zero-knowledge proofs enable selective disclosure, allowing you to verify user credentials without storing or processing sensitive PII on-chain.
100%
PII Off-Chain
KYC/AML
Framework Ready
02
Enhanced User Onboarding & Retention
Reduce sign-up friction by 70% with portable, reusable identity proofs. Users verify once with a trusted provider (e.g., government ID, social login) and can seamlessly access your dApp and others in the ecosystem.
70%
Lower Friction
< 2s
Proof Verification
03
Scalable, Cost-Effective Infrastructure
Batch thousands of identity verifications into a single ZK-Rollup transaction. Drastically reduce on-chain gas costs and data bloat while maintaining Ethereum-level security guarantees for your critical logic.
95%
Lower Gas Costs
10k+ TPS
Verification Capacity
04
Monetizable Data Insights
Gain actionable, privacy-preserving analytics. Analyze aggregate user behavior and credential trends (e.g., regional adoption, credential types) without ever accessing individual user data, unlocking new business intelligence.
Zero-Knowledge
Analytics
Real-time
Dashboards
05
Future-Proof Interoperability
Build on standards-compliant identity primitives (W3C VCs, IETF SD-JWT) integrated with major ZK-Rollup stacks (zkSync, Starknet, Polygon zkEVM). Ensure your user identities are portable across the evolving multi-chain landscape.
W3C
Standards
Multi-Chain
Compatible
06
Enterprise-Grade Security Audits
Receive a deployment backed by formal verification of ZK circuits and smart contracts. Our deliverables include audit reports from leading firms, ensuring your identity layer meets the highest security standards from day one.
Formal
Verification
Third-Party
Audit Reports
ZK-Rollup Privacy-Preserving Identity Aggregation
Build vs. Buy: Implementing Compliant Identity
Compare the total cost, risk, and time required for in-house development versus our managed service for compliant on-chain identity.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Development Timeline | 6-9 months | 4-8 weeks |
Initial Team Cost | $250K-$400K | $0 |
ZK-Circuit Expertise Required | High (2-3 senior engineers) | Included |
Smart Contract & ZK Audit | $50K-$100K (external) | Included (CertiK, OpenZeppelin) |
Regulatory Compliance (KYC/AML) | Custom integration & legal review | Pre-built modules (Veriff, Sumsub) |
Ongoing Maintenance & Upgrades | 1-2 FTE engineers | Fully managed with 99.9% SLA |
Time to First Production Pilot | 9+ months | < 30 days |
Total Year 1 Cost | $300K-$500K+ | From $75K |
Risk Profile | High (security, regulatory, timeline) | Low (audited, compliant, SLA-backed) |
how-we-deliver
PREDICTABLE DELIVERY
Our Development & Delivery Process
A structured, security-first approach to building and deploying your ZK-Rollup identity solution. We deliver production-ready systems on time, with clear milestones and expert oversight.
01
Discovery & Architecture Design
We define your specific privacy and compliance requirements, then architect a custom ZK-Rollup solution. This includes selecting the optimal proving system (e.g., Plonk, Groth16), designing the identity state model, and planning data availability.
1-2 weeks
Phase Duration
Detailed Spec
Deliverable
02
Core Circuit & Smart Contract Development
Our cryptographers implement the zero-knowledge circuits for identity proofs, while our Solidity engineers build the on-chain verifier and rollup manager contracts. All code follows OpenZeppelin standards and is optimized for gas efficiency.
3-5 weeks
Phase Duration
Audit-Ready Code
Deliverable
03
Security Audit & Formal Verification
Every circuit and smart contract undergoes rigorous third-party security review by firms like Spearbit or Zellic. We also apply formal verification tools to critical logic, ensuring mathematical correctness of privacy guarantees.
2-3 weeks
Phase Duration
Audit Report
Deliverable
04
Testnet Deployment & Integration
We deploy the complete system to a testnet (e.g., Sepolia, Holesky), configure the prover/sequencer infrastructure, and integrate with your front-end or API. This phase includes comprehensive load testing and failure scenario simulations.
1-2 weeks
Phase Duration
Live Test Environment
Deliverable
05
Mainnet Launch & Monitoring
We manage the secure mainnet deployment, including contract verification and initial sequencer setup. Post-launch, we provide 24/7 monitoring dashboards for proof generation latency, sequencer health, and on-chain verification costs.
1 week
Phase Duration
Production System
Deliverable
06
Ongoing Support & Scaling
We offer retainer-based support for upgrades, performance tuning, and scaling the system (e.g., migrating to recursive proofs). Includes access to our team for protocol updates and emergency response.
Ongoing
Engagement
SLA Options
Available
tech-stack
BUILT FOR ENTERPRISE SCALE
Technology & Protocol Foundation
Our ZK-Rollup identity layer is engineered on battle-tested protocols and proprietary technology, delivering the security, performance, and interoperability required for production-grade applications.
ZK-Rollup Identity
Frequently Asked Questions
Common questions about implementing privacy-preserving identity aggregation for Web3 applications.
A standard deployment for a custom ZK-Rollup identity aggregator takes 4-8 weeks. This includes 1-2 weeks for architecture and circuit design, 2-4 weeks for core development and testing, and 1-2 weeks for audit preparation and deployment. Complex integrations with existing KYC providers or custom proof logic may extend this timeline. We provide a detailed project plan in 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
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall