We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our development process is built on audited security patterns and gas optimization from day one.
LABS
Services
Privacy-Preserving ZK Encrypted Archive Access
We build systems that store encrypted archives on decentralized storage with access governed by zero-knowledge proofs. Prove authorization or data attributes without revealing the underlying content.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- End-to-End Development: From specification and
Solidity 0.8+coding to deployment onEVM/Solana/Cosmos. - Security First: All contracts undergo internal audits and are built with
OpenZeppelinlibraries. - Gas Efficiency: Optimized logic to reduce user transaction costs by up to 40%.
- Full Compliance: Integrate
ERC-20,ERC-721, and custom standards for regulatory readiness.
Deliver a secure, auditable foundation for your protocol in as little as 4 weeks.
key-features-cards
ARCHITECTURE & EXECUTION
Core Technical Capabilities We Deliver
We build production-ready, privacy-first infrastructure that scales. Our focus is on delivering audited, high-performance systems that meet enterprise security and compliance standards.
01
Zero-Knowledge Proof Integration
Implement zk-SNARKs and zk-STARKs for verifiable data access without exposing sensitive information. We handle the complex cryptography so you can focus on your application logic.
zk-SNARKs/STARKs
Proof Systems
Circom, Noir
Circuit Languages
02
Encrypted Data Pipeline
End-to-end encrypted data ingestion, storage, and retrieval using AES-256-GCM and hybrid encryption models. Data remains encrypted at rest, in transit, and during computation.
AES-256-GCM
Encryption Standard
End-to-End
Data Protection
03
Secure Smart Contract Vaults
Develop and audit custom Solidity contracts that manage access permissions and proof verification. Built with OpenZeppelin libraries and gas-optimized patterns.
Solidity 0.8+
Language
OpenZeppelin
Security Base
04
High-Availability Node Infrastructure
Deploy and manage resilient archive nodes (Geth, Erigon) with load balancing, automated failover, and 99.9% uptime SLA for reliable data access.
99.9%
Uptime SLA
Geth, Erigon
Node Clients
05
Compliance-First Architecture
Design systems with built-in audit trails, role-based access control (RBAC), and data sovereignty features to meet GDPR, SOC 2, and financial regulatory requirements.
GDPR Ready
Compliance
SOC 2 Type II
Framework
06
Performance-Optimized APIs
Deliver low-latency GraphQL and REST APIs for querying encrypted archives. Features include query batching, caching layers, and sub-second response times for verified data.
< 1 sec
P95 Latency
GraphQL/REST
API Types
benefits
DELIVERABLES
Business Outcomes for Your Platform
Our ZK-encrypted archive access service delivers concrete, measurable results for your FinTech or Web3 platform. We focus on the technical and business outcomes that matter most for scaling securely.
01
Regulatory Compliance by Design
Deploy with built-in compliance for GDPR, CCPA, and financial data regulations. Our ZK proofs enable data verification without exposing sensitive information, turning a technical challenge into a market advantage.
Zero-Knowledge
Proof Standard
GDPR/CCPA
Compliance Ready
02
Enterprise-Grade Data Security
End-to-end encrypted archives with audited ZK circuits. We implement industry-standard encryption (AES-256) and leverage battle-tested ZK libraries (e.g., Circom, Halo2) to protect sensitive transaction histories and user data.
AES-256
Encryption
Audited
ZK Circuits
03
Scalable On-Chain Verification
Verify terabytes of off-chain data with a single, gas-efficient on-chain proof. Our architecture separates proof generation from verification, allowing high-throughput data access without congesting your mainnet.
< 0.1 ETH
Avg. Verification Cost
Sub-Second
Proof Finality
04
Faster Time-to-Market
Integrate a production-ready ZK data layer in weeks, not months. We provide SDKs, comprehensive documentation, and dedicated developer support to accelerate your integration and launch.
2-4 Weeks
Integration Timeline
Full SDK
Developer Support
05
Reduced Operational Overhead
Eliminate the cost and complexity of managing custom encryption and data provenance systems. We handle the ZK infrastructure, security audits, and maintenance, freeing your team to focus on core product features.
Managed Service
Infrastructure
24/7 SRE
Support & Monitoring
06
Enhanced User Trust & Adoption
Provide users with cryptographically verifiable data access without compromising privacy. This transparency builds trust for high-value applications in DeFi, institutional finance, and identity management.
Verifiable
Data Integrity
Privacy-First
User Experience
ZK Archive Access Solutions
Structured Development Tiers
Compare our structured service packages for implementing privacy-preserving encrypted archive access using Zero-Knowledge proofs. Each tier is designed to meet specific security, compliance, and operational needs.
| Feature / Specification | Starter | Professional | Enterprise |
|---|---|---|---|
ZK Proof System Integration | Groth16 (Basic) | Plonk / Halo2 (Custom) | Plonk / Halo2 (Multi-Circuit) |
Archive Encryption Standard | AES-256-GCM | AES-256-GCM + Key Management | FIPS 140-3 Compliant Module |
On-Chain Verification Support | EVM (Ethereum Mainnet) | EVM + 2 L2s (e.g., Arbitrum, Polygon) | Multi-Chain (EVM, Solana, Cosmos SDK) |
Access Policy Smart Contracts | Basic Role-Based | Custom Logic + Time-Locks | Dynamic, Gas-Optimized Multi-Sig |
Security Audit & Penetration Test | Automated Scan Report | Manual Review by Partner Firm | Comprehensive Audit + Bug Bounty Setup |
Implementation Timeline | 6-8 weeks | 10-14 weeks | Custom (16+ weeks) |
Dedicated Technical Support | Email (Business Hours) | Slack Channel + On-Call | 24/7 Dedicated Engineer SLA |
Compliance Documentation | Basic Architecture Overview | SOC 2 Type I Readiness Pack | Full SOC 2 Type II, GDPR, CCPA Kit |
Recurring Infrastructure Cost | $1.5K - $3K / month | $5K - $10K / month | Custom (Volume-Based) |
One-Time Development Fee | $50K | $120K | Contact for Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development Process
A systematic, security-first approach to delivering production-ready, privacy-preserving archives. We de-risk your project with clear milestones and expert execution.
01
Architecture & Zero-Knowledge Design
We design the cryptographic architecture, selecting optimal ZK-SNARK/STARK frameworks (e.g., Circom, Halo2) and defining the data schema for encrypted archives. This phase establishes the security model and performance baseline.
Circom / Noir
ZK Framework
1-2 weeks
Design Sprint
02
Core Circuit & Contract Development
Our engineers write the verifier circuits and the on-chain smart contracts (Solidity/Rust) that manage access permissions and verify proofs. All code follows OpenZeppelin patterns and is optimized for gas efficiency.
Solidity 0.8+
Contract Standard
Gas-Optimized
Priority
03
Rigorous Security Audits
Every circuit and contract undergoes internal review followed by a formal audit from a leading security firm. We provide a comprehensive report and implement all recommendations before deployment.
Formal Audit
Security Step
100% Remediation
Pre-Launch
04
Integration & Client SDK
We build and deliver a client-side SDK (TypeScript/Python) for your application to generate proofs and interact with the archive system. Includes comprehensive documentation and integration support.
TypeScript SDK
Primary Delivery
Full Docs
Included
05
Testnet Deployment & Staging
We deploy the full system to a testnet (e.g., Sepolia, Amoy), execute end-to-end testing, and simulate real-world load. You receive a staging environment for final validation.
Sepolia / Amoy
Test Network
E2E Test Suite
Delivered
06
Mainnet Launch & Ongoing Support
We manage the secure mainnet deployment and provide 30 days of post-launch monitoring and support. Optional ongoing maintenance and upgrade plans are available.
SLA-Based
Post-Launch Support
Production Ready
Final Milestone
security
SECURE FOUNDATIONS
Smart Contract Development
Production-ready smart contracts built with security-first principles and gas optimization.
We deliver audit-ready smart contracts that power your core business logic. Our development process is built on OpenZeppelin standards and rigorous testing to ensure security and reliability from day one.
- Custom Logic:
ERC-20,ERC-721,ERC-1155, and bespoke tokenomics. - Gas Optimization: Reduce user transaction costs by up to 40% through efficient code patterns.
- Security-First: Comprehensive unit/integration testing and formal verification preparation.
Deploy with confidence. Our contracts are designed for mainnet readiness, incorporating battle-tested patterns to mitigate common vulnerabilities like reentrancy and overflow.
We provide full documentation and a comprehensive test suite, enabling your team to iterate and scale with a secure, maintainable codebase.
ZK Archive Access
Frequently Asked Questions
Get clear answers on how we deliver secure, private, and verifiable data access for your Web3 application.
A standard implementation for a single application or data stream takes 3-6 weeks. This includes requirements analysis, circuit design, smart contract development, and integration. Complex multi-chain deployments or custom zero-knowledge proof schemes can extend to 8-12 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