We architect and deploy production-grade smart contracts that power your core business logic. Our senior engineers deliver secure, gas-optimized code for ERC-20, ERC-721, and custom protocols, ensuring reliability from day one.
LABS
Services
Privacy-Preserving ZK Data Marketplace
We develop mobile applications that enable the private sale and verification of sensitive user data using zero-knowledge proofs and zk-rollups. Your users retain ownership and privacy while you unlock new revenue streams.
Chainscore © 2026
overview
CORE ENGINEERING
Smart Contract Development
Secure, audited smart contracts built for production by senior Solidity engineers.
- Full Development Lifecycle: From specification and architecture to deployment and verification.
- Security-First: Built with
OpenZeppelinstandards and hardened through internal audits before external review. - Gas Optimization: Every line of
Solidityis written for minimum transaction cost and maximum efficiency.
Deploy a secure, audited MVP in as little as 2 weeks, with a 99.9% uptime SLA for mainnet deployments.
key-features-cards
ZK DATA MARKETPLACE INFRASTRUCTURE
Core Technical Capabilities We Deliver
We build the foundational privacy and data integrity layer for your marketplace. Our solutions are production-ready, audited, and designed for enterprise scale.
benefits
DELIVERABLES
Business Outcomes for Your Platform
We architect and deploy production-ready ZK data marketplaces that deliver measurable business value from day one. Our focus is on secure, scalable infrastructure that drives revenue and trust.
01
Monetize Sensitive Data
Launch a compliant marketplace to sell data insights without exposing raw information. Our ZK-proof systems enable verifiable queries on private datasets, creating new revenue streams from financial, healthcare, or enterprise data.
0%
Data Leakage
New Revenue
Stream
02
Enterprise-Grade Security & Compliance
Deploy with built-in compliance for GDPR, HIPAA, and financial regulations. Our architecture uses audited ZK circuits (Circom, Halo2) and secure multi-party computation to meet the highest security standards for enterprise clients.
Audited
ZK Circuits
Regulatory
Frameworks
03
High-Performance Data Provenance
Implement immutable, verifiable audit trails for all data transactions. Every query, purchase, and computation is recorded on-chain with ZK proofs, providing transparent provenance that increases data value and buyer confidence.
Immutable
Audit Trail
Verifiable
Provenance
04
Scalable On-Chain Settlement
Automate secure, trustless payments with custom settlement logic. We integrate payment channels and cross-chain bridges for low-fee, instant settlements in stablecoins or native tokens, handling high transaction volumes.
< 1 sec
Settlement Finality
Multi-Chain
Payments
05
Reduced Time-to-Market
Leverage our modular ZK data marketplace framework to launch in weeks, not months. We provide pre-built components for proof generation, data schemas, and listing management, customized to your specific data model.
4-6 weeks
Production Launch
Modular
Framework
06
Interoperable Data Ecosystem
Connect your marketplace to DeFi protocols, AI models, and enterprise systems. Our designs use standard data schemas and oracle integrations, enabling your data to become a composable asset across the Web3 stack.
Composable
Data Assets
Oracle
Integrations
Structured Roadmap to Production
Phased Development Tiers
A modular approach to building your ZK data marketplace, from MVP to enterprise-grade deployment. Each tier builds upon the last, ensuring a clear path to scaling.
| Feature / Deliverable | Proof-of-Concept | Production-Ready | Enterprise Scale |
|---|---|---|---|
Core ZK Marketplace Smart Contracts | |||
Zero-Knowledge Proof Circuit Design | Basic (1 data type) | Custom (3+ data types) | Custom (Unlimited schemas) |
On-Chain Data Attestation Layer | |||
Off-Chain Data Availability & Storage | IPFS (Self-managed) | Decentralized Storage Network | Multi-region, Redundant Cluster |
Frontend SDK & API Integration | Basic React SDK | Full SDK (React, Node.js, Python) | White-label UI & Dedicated API Gateway |
Smart Contract Security Audit | Informal Review | Full Audit by Top-5 Firm | Full Audit + Ongoing Bug Bounty Program |
Deployment & Mainnet Launch Support | Testnet Only | Full Mainnet Deployment | Multi-chain Deployment (EVM + L2s) |
Infrastructure Monitoring & Alerting | Basic Health Dashboard | 24/7 Monitoring & Alerts | SLA-Backed 99.9% Uptime |
Technical Support & Response Time | Community Discord | Business Hours (< 12h) | 24/7 Dedicated (< 1h) |
Estimated Timeline | 4-6 weeks | 8-12 weeks | 12+ weeks |
Starting Investment | $25K - $50K | $80K - $150K | Custom Quote |
how-we-deliver
BUILDING WITH CONFIDENCE
Our Development Methodology
A systematic, security-first approach to delivering production-ready, privacy-preserving data marketplaces. We focus on verifiable outcomes, not just features.
01
Architecture & Protocol Design
We design your marketplace's core ZK architecture, selecting optimal proving systems (zk-SNARKs, zk-STARKs) and data schemas for your specific use case. This ensures scalability and cost-efficiency from day one.
2-4 weeks
Design Phase
3+ Options
Architecture Reviewed
02
Circuit Development & Optimization
Our team writes and rigorously optimizes the zero-knowledge circuits that power your privacy guarantees. We focus on minimizing proof generation time and on-chain verification costs.
> 50%
Avg. Gas Reduction
Circom / Halo2
Proven Frameworks
03
Security-First Smart Contracts
We develop and audit the marketplace's core smart contracts for data listing, proof verification, and settlement. Built with Solidity 0.8+ and OpenZeppelin libraries, following a multi-layered security review process.
3 Layers
Security Review
Formal Verification
Critical Paths
04
Integration & Scalability Engineering
Seamless integration of ZK proofs with your frontend and backend systems. We implement scalable proving infrastructure (often using Rust/Golang) to handle high-throughput data verification.
< 2 sec
Proof Gen Target
Modular API
Easy Integration
05
Rigorous Testing & Auditing
Every component undergoes unit, integration, and stress testing. The final system receives an external audit from a reputable security firm before mainnet deployment, with a public report.
100%
Code Coverage Goal
External Audit
Pre-Launch Mandatory
06
Deployment & Ongoing Support
We manage the deployment to your chosen network (Ethereum, Polygon, zkSync) and provide clear documentation. Post-launch, we offer monitoring and maintenance packages to ensure system health.
48 hrs
Avg. Deployment Time
99.5% SLA
Initial Support Uptime
ZK Marketplace Development
Frequently Asked Questions
Get clear answers on timelines, costs, and technical details for building a privacy-preserving data marketplace with zero-knowledge proofs.
From initial design to mainnet launch, a typical timeline is 8-12 weeks. This includes 2 weeks for architecture and ZK circuit design, 4-6 weeks for core smart contract and backend development, and 2-4 weeks for security audits, testing, and deployment. For MVPs with a single data type, we've delivered in as little as 6 weeks.
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