We architect and deploy audited, gas-optimized smart contracts on EVM and Solana. Our contracts are built for mainnet readiness, incorporating OpenZeppelin standards and custom logic for DeFi, NFTs, and enterprise use cases.
LABS
Services
ZK-Rollup POS Privacy Enhancement
We implement zero-knowledge proof systems to add transaction privacy to your POS network, shielding merchant and customer wallet addresses and transaction amounts on public ledgers for compliance-sensitive businesses.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Security-First Development: Every line undergoes peer review and is tested against common vulnerabilities before formal audit.
- Gas Optimization: We reduce transaction costs by 20-40% through efficient data structures and opcode patterns.
- Full Lifecycle Support: From initial spec and
Hardhat/Foundrytesting to deployment, verification, and upgrade management via transparent proxies.
Deploy with confidence. Our contracts power protocols securing $500M+ in TVL, with a 0 critical bug track record in production.
key-features-cards
ENTERPRISE-GRADE SECURITY
Core Privacy Features We Implement
Our ZK-Rollup privacy enhancements are built on verifiable cryptographic primitives, delivering production-ready confidentiality for your payment systems without compromising on-chain verifiability.
02
Stealth Address & Note System
Deploy a one-time address system for each transaction, breaking the linkability between payments. We integrate with your existing wallet infrastructure to generate unique stealth addresses automatically, protecting user identity.
03
Confidential Asset Transfers
Enable private transfers of any ERC-20 or native token within your rollup. Our architecture masks asset types and amounts, allowing for confidential DeFi operations and compliant financial settlements.
05
Gas-Optimized Proof Generation
Leverage our optimized proving circuits and hardware acceleration to minimize the cost and latency of generating ZK proofs. We achieve sub-2 second proof generation times, making privacy practical for high-frequency POS systems.
06
Secure Private Key Management
Implement MPC (Multi-Party Computation) or smart contract-based account abstraction for managing viewing and spending keys. Eliminates single points of failure and provides enterprise-grade key security and recovery options.
benefits
DELIVERABLES
Business Outcomes for Your POS Platform
Our ZK-Rollup privacy enhancement service delivers measurable improvements to your payment infrastructure's security, compliance, and operational efficiency.
01
Regulatory Compliance by Design
ZK-proofs enable transaction privacy while maintaining a fully auditable trail for regulators. We implement compliance modules for AML/KYC checks that operate off-chain, ensuring privacy without sacrificing legal adherence.
100%
Audit Trail
Zero-Knowledge
Proof Generation
02
Sub-Second Transaction Finality
Move high-volume POS transactions off-chain with our optimized ZK-Rollup. Achieve instant user confirmation while batches settle on-chain every few minutes, eliminating network congestion delays.
< 500ms
User Confirmation
10k+ TPS
Off-Chain Capacity
03
Reduced On-Chain Gas Costs
Bundle thousands of private POS transactions into a single on-chain proof. We deliver up to a 100x reduction in per-transaction gas fees, making blockchain settlement cost-effective for micro-payments.
100x
Cost Reduction
$0.001
Avg. Settlement Cost
05
Seamless POS System Integration
We provide SDKs and APIs that plug directly into existing payment processors (Stripe, Adyen analogs) and hardware. No merchant retraining required—privacy becomes a backend feature.
< 2 Weeks
Integration Time
REST & gRPC
API Support
06
Data Sovereignty & Privacy
Customer purchase history and sensitive data never leave your encrypted off-chain environment. ZK-proofs validate transactions without exposing underlying data, mitigating breach risks and building consumer trust.
End-to-End
Encryption
GDPR/CCPA Ready
Data Privacy
Architecture Comparison
Public POS vs. ZK-Enhanced Private POS
A technical breakdown of the core differences between a standard public Proof of Stake (POS) validator and a ZK-Rollup enhanced private validator, highlighting the privacy and performance benefits.
| Feature | Public POS Validator | ZK-Enhanced Private POS |
|---|---|---|
Transaction Data Visibility | Fully public on L1 | Only validity proofs published; details remain private |
Validator Identity | Public on-chain address | Anonymous or pseudonymous operation |
MEV (Maximal Extractable Value) Risk | High - strategies are observable | Mitigated - private execution obscures intent |
Settlement Finality | Native L1 finality (e.g., 12-15 sec on Ethereum) | Near-instant finality within the rollup, then L1 finality |
Throughput (Transactions per Second) | Limited by base layer (e.g., ~15-30 TPS) | Scalable (1,000+ TPS) via batch processing |
Infrastructure Cost & Complexity | Lower initial setup, higher gas costs long-term | Higher initial ZK-circuit setup, lower operational gas costs |
Regulatory & Compliance Posture | Transparent but exposes all participant data | Enables selective disclosure and auditability via proofs |
Ideal Use Case | General-purpose staking, transparent DeFi | Institutional staking, private DeFi pools, compliant enterprise applications |
how-we-deliver
PROVEN METHODOLOGY
Our ZK-Rollup Implementation Process
We deliver production-ready, private payment systems in weeks, not months. Our battle-tested process ensures security, scalability, and seamless integration with your existing POS infrastructure.
01
Architecture & Protocol Design
We design a custom ZK-Rollup architecture tailored to your transaction volume and privacy requirements, selecting the optimal proving system (e.g., Plonk, Groth16) and data availability layer.
2-4 weeks
Design Phase
10+
Protocols Audited
02
Circuit Development & Optimization
Our team writes and rigorously optimizes the zero-knowledge circuits that power your private transactions, focusing on minimal proof generation time and verification gas costs.
< 2 sec
Proof Gen Target
~$0.05
Avg. Verification Cost
04
POS SDK & Merchant Integration
We provide a lightweight SDK and comprehensive API documentation for seamless integration into your point-of-sale terminals, mobile apps, and backend systems.
< 1 week
Integration Time
24/7
Dev Support
05
Staging & Load Testing
Before mainnet launch, we conduct exhaustive load testing simulating peak transaction volumes to guarantee system stability and performance under real-world conditions.
10k TPS
Test Capacity
100%
Success Rate Target
06
Mainnet Launch & Ongoing Support
We manage the production deployment and provide ongoing monitoring, maintenance, and upgrade services, ensuring your system evolves with the latest ZK advancements.
< 2 days
Go-Live Period
SLA-Backed
Maintenance
Structured Development Path
ZK-Rollup POS Privacy Enhancement: Project Timeline & Deliverables
A clear, phased roadmap for delivering a custom privacy-enhanced ZK-Rollup for your Proof-of-Stake chain, from initial audit to production deployment and ongoing support.
| Phase & Deliverable | Starter (Audit & Design) | Professional (Full Build) | Enterprise (End-to-End) |
|---|---|---|---|
Phase 1: Architecture & Audit | Comprehensive Design Review | Design Review + Threat Modeling | Design Review + Threat Modeling |
ZK Circuit Security Audit | Basic Review | In-depth Audit (2 Rounds) | In-depth Audit + Formal Verification |
Deliverable: Technical Specification | |||
Phase 2: Core Development | Not Included | Custom ZK-SNARK/STARK Circuit | Custom ZK-SNARK/STARK Circuit |
Privacy-Enhanced Prover/Verifier | Not Included | Optimized for your POS chain | Optimized + Hardware Acceleration |
Integration with POS Client | Not Included | Full Integration | Full Integration + Performance Tuning |
Deliverable: Testnet Deployment | |||
Phase 3: Deployment & Support | Not Included | Mainnet Deployment Support | Managed Mainnet Launch |
Monitoring & Alerting Setup | Not Included | Basic Dashboard | Custom Dashboard + 24/7 SRE |
Incident Response SLA | Not Included | Best Effort | < 1 Hour |
Ongoing Maintenance & Upgrades | Not Included | Optional Retainer | Included (Quarterly Updates) |
Estimated Timeline | 2-3 Weeks | 8-12 Weeks | 12-16 Weeks |
Starting Investment | $25K - $50K | $150K - $300K | Custom Quote |
Technical & Commercial FAQs
ZK-Rollup POS Privacy: Key Questions
Get clear answers on timelines, costs, security, and technical implementation for our ZK-Rollup privacy enhancement service.
A standard deployment for a custom zk-SNARK/STARK circuit and integration with your existing PoS chain takes 4-6 weeks. This includes design, development, on-chain deployment, and initial testing. Complex requirements like custom nullifier schemes or multi-asset support can extend this to 8-10 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