We architect and deploy audit-ready smart contracts on EVM and Solana. Our process delivers secure, gas-optimized code for ERC-20, ERC-721, ERC-1155, and custom protocols, ensuring your core logic is immutable and reliable.
LABS
Services
EVM-Based KYC Data Vault Development
Build secure, compliant on-chain vaults for KYC data. We deliver immutable storage with granular access controls on Ethereum and EVM chains, ensuring regulatory alignment and auditability.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists.
- Security-First Development: Built with
OpenZeppelinstandards, formal verification, and comprehensive unit/integration testing. - Full Lifecycle Support: From architecture and development to deployment, monitoring, and upgrade management via proxies.
- Proven Delivery: Contracts designed for mainnet readiness, with typical MVP delivery in 2-4 weeks.
We don't just write code; we engineer the trust layer for your application. Our contracts are built to handle real value and scale.
key-features-cards
ENTERPRISE-GRADE SECURITY
Core Features of Our KYC Data Vault Architecture
Our EVM-based vault architecture is engineered for compliance, scalability, and resilience. We deliver a production-ready foundation that meets the stringent demands of regulated financial applications.
04
Immutable Audit Trail & Data Provenance
Every KYC attestation and status change is recorded on-chain with a cryptographic hash. Provides regulators and internal teams with a tamper-proof, timestamped history of all compliance actions.
05
Automated Compliance Rule Engine
Pre-configured smart contracts for jurisdiction-specific rules (e.g., OFAC sanctions, travel rule). Automatically flag or block transactions based on real-time KYC/AML status updates.
benefits
STRATEGIC ADVANTAGES
Business Outcomes: Beyond Technical Implementation
Our EVM-Based KYC Data Vault delivers more than secure data storage. It creates tangible business value by reducing compliance overhead, accelerating user onboarding, and unlocking new revenue streams through secure data portability.
01
Accelerated User Onboarding
Reduce KYC verification time from days to minutes with automated, reusable credential checks. Our vault enables instant, permissioned access to verified user data, directly increasing conversion rates.
< 2 min
Average Verification
40%
Higher Conversion
02
Dramatic Compliance Cost Reduction
Eliminate redundant KYC checks and manual review processes. A single, auditable source of truth for user data slashes operational costs and simplifies regulatory reporting across jurisdictions.
70%
Lower OpEx
Automated
Audit Trails
03
New Monetization & Partnership Channels
Enable secure, user-consented data sharing with trusted third parties (e.g., DeFi protocols, exchanges). Create revenue-sharing models by facilitating compliant data portability without exposing raw PII.
User-Consented
Data Sharing
New
Revenue Streams
04
Future-Proof Regulatory Agility
Built on modular, upgradeable smart contracts, our vault architecture adapts to new regulations (e.g., Travel Rule, MiCA) without costly system overhauls, ensuring long-term compliance.
Modular
Architecture
Zero-Downtime
Updates
05
Enhanced Security & User Trust
Leverage zero-knowledge proofs and on-chain access logs to give users full control and visibility over their data. This transparency builds unparalleled trust and reduces fraud liability.
ZK-Proofs
Privacy
User-Controlled
Access Logs
06
Seamless Cross-Chain & Cross-Platform Interoperability
Our vault is designed for a multi-chain future. Verified credentials are portable across EVM networks and can integrate with traditional systems via secure APIs, breaking down data silos.
Multi-Chain
Compatible
Standardized
APIs
Strategic Infrastructure Decision
Build vs. Buy: KYC Data Storage Options
A detailed comparison of the time, cost, and risk involved in developing a compliant KYC data vault in-house versus partnering with Chainscore Labs for a production-ready solution.
| Factor | Build In-House | Chainscore Vault |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $50K - $150K |
Smart Contract Security | High Risk (Unaudited) | Audited by Leading Firms |
Compliance & Legal Review | Your Responsibility | Pre-built for GDPR/CCPA |
Data Encryption Standard | Custom Implementation | AES-256 & ZK-Proofs |
Multi-Chain Deployment | Per-Chain Development | Single Contract, EVM-Native |
Ongoing Maintenance & Upgrades | Full DevOps Team | Managed Service (Optional SLA) |
Total Cost of Ownership (Year 1) | $200K - $500K+ | $75K - $200K |
Time-to-Value for Users | Delayed by 6+ months | Immediate Integration |
how-we-deliver
PROVEN METHODOLOGY
Our Delivery Process: From Audit to Production
A structured, security-first approach to delivering enterprise-grade KYC data vaults. We ensure compliance, scalability, and seamless integration from day one.
01
1. Architecture & Smart Contract Audit
We begin with a comprehensive review of your existing smart contracts and system architecture. Our team identifies vulnerabilities, optimizes gas costs, and ensures compliance with data privacy standards like GDPR and CCPA for on-chain KYC.
Deliverable: Detailed audit report with prioritized fixes and gas optimization recommendations.
100%
Coverage for Critical Flaws
< 72 hrs
Initial Report
02
2. Custom Vault Development
Development of your EVM-based data vault using proven patterns (e.g., Diamond Proxy for upgradeability, Merkle Trees for verification). We implement zero-knowledge proofs or secure multi-party computation for sensitive data handling as required.
Deliverable: Production-ready, audited smart contract suite deployed to your testnet.
ERC-7252/ERC-4337
Standards Compliant
2-3 weeks
Avg. Build Time
03
3. Integration & API Layer
We build and deploy the off-chain API gateway and middleware that securely bridges your application to the blockchain vault. This includes key management, encryption/decryption services, and event listeners for real-time data synchronization.
Deliverable: Fully documented REST/GraphQL APIs with SDKs for easy frontend integration.
99.9%
API Uptime SLA
< 100ms
P95 Response Time
04
4. Security Certification & Pen Testing
Before mainnet deployment, the entire system undergoes rigorous third-party penetration testing and formal verification. We target certifications like SOC 2 Type II to meet enterprise security requirements for financial data.
Deliverable: Final security certification report and attestation letter from accredited auditors.
CertiK, Halborn
Audit Partners
Zero Critical
Issues at Launch
05
5. Mainnet Deployment & Monitoring
Managed deployment to your production Ethereum L2 or mainnet environment. We set up comprehensive monitoring with alerts for contract events, gas spikes, and API health, ensuring operational visibility from day one.
Deliverable: Production system live with 24/7 monitoring dashboard and incident response playbook.
1 hr
Guanteed Deployment Window
24/7
SRE Support
06
6. Ongoing Maintenance & Upgrades
Post-launch, we provide ongoing support, including smart contract upgrade management via transparent governance modules, performance tuning, and compliance updates for evolving regulatory landscapes.
Deliverable: Dedicated technical account manager and quarterly system health reviews.
< 4 hrs
Critical Response Time
Zero Downtime
Upgrade Guarantee
security-compliance
FULL-STACK BUILD
Custom Blockchain Development
End-to-end development of secure, scalable blockchain networks and applications tailored to your business logic.
We architect and deploy custom blockchain solutions from the ground up, ensuring they are built for production-grade performance and long-term scalability. Our process delivers a fully functional MVP in 4-6 weeks, moving you from concept to live network.
We don't just write smart contracts; we engineer resilient systems that handle real-world transaction volumes and user growth.
- Core Protocol & Smart Contract Development: Custom
Solidity/Rustcontracts withOpenZeppelinstandards, formal verification, and comprehensive audit trails. - Node Infrastructure & Consensus: Deployment of validator nodes, RPC endpoints, and bespoke consensus mechanisms (
PoS,PoA,BFT) for your network. - Full-Stack dApp Integration: Seamless front-end (
React/Next.js) and back-end APIs connecting your blockchain to existing enterprise systems. - Post-Launch Support & Upgrades: Ongoing maintenance, monitoring with
Prometheus/Grafana, and governance implementation for seamless protocol evolution.
EVM-Based KYC Data Vault
Frequently Asked Questions
Get clear answers on our development process, security, and support for your compliant on-chain identity solution.
For a standard EVM-based KYC Data Vault with core features (on-chain verification, role-based access, data encryption), we deliver in 3-5 weeks. Complex integrations with existing identity providers or custom compliance logic can extend this to 6-8 weeks. We provide a detailed project plan with weekly milestones after the initial scoping call.
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