We architect, develop, and audit custom Solidity and Rust smart contracts that form the foundation of your protocol. Our development process is built for security and speed, delivering audit-ready code in 2-4 weeks.
LABS
Services
AppChain for Regulated Data Vaults
We design and deploy dedicated application-specific blockchains (AppChains) for encrypted data vaults, providing custom governance, immutable audit trails, and built-in compliance for regulated industries.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Security-First Design: Built with
OpenZeppelinlibraries and battle-tested patterns, followed by internal peer review. - Full-Stack Integration: Contracts are delivered with deployment scripts, test suites, and frontend SDKs for your team.
- Gas Optimization: We specialize in writing efficient code to minimize transaction costs for your users.
We don't just write code; we deliver the secure, functional building blocks your product needs to launch with confidence.
key-features-cards
BUILT FOR COMPLIANCE AND SCALE
Core Technical Capabilities
Our AppChain for Regulated Data Vaults is engineered from the ground up to meet the stringent demands of financial data, combining enterprise-grade security with the flexibility of Web3.
01
Zero-Knowledge Data Vaults
Implement private data storage and computation using zk-SNARKs and zk-STARKs. Enable selective disclosure for audits and compliance without exposing sensitive raw data.
ZK-SNARKs
Proof System
Selective
Data Disclosure
02
Permissioned Layer 2 Architecture
Deploy a dedicated AppChain on a permissioned L2 (e.g., Polygon Supernets, Arbitrum Orbit) with configurable validator sets, ensuring data sovereignty and regulatory control.
Dedicated
AppChain
Configurable
Validator Set
03
Automated Compliance Oracles
Integrate real-time on-chain compliance checks via custom oracles. Automate sanctions screening (OFAC), transaction monitoring (AML), and jurisdictional rules.
Real-time
Screening
OFAC/AML
Compliance
04
Immutable Audit Trail
Every data access, modification, and transaction is cryptographically signed and recorded on-chain, providing a tamper-proof ledger for internal and regulatory audits.
Tamper-proof
Ledger
Cryptographic
Signatures
05
Enterprise Key Management
Secure, multi-party (MPC) or hardware-based (HSM) key management systems integrated directly into the chain's governance, separating operational and recovery keys.
MPC/HSM
Security
Multi-party
Governance
06
Interoperability Bridges
Build secure, attestation-based bridges to public mainnets (Ethereum) and other permissioned chains, enabling verifiable data proofs and asset transfers.
Attestation
Based
Cross-chain
Verification
benefits
PROVEN RESULTS
Business Outcomes for Regulated Industries
Our AppChain for Regulated Data Vaults delivers measurable compliance and operational advantages, built on a foundation of verifiable security and auditability.
01
Audit-Ready Data Provenance
Immutable, timestamped audit trails for all data access and transactions, enabling automated compliance reporting for FINRA, GDPR, and MiCA. Reduce audit preparation time from weeks to hours.
100%
Immutable Logging
< 24h
Audit Report Generation
02
Zero-Knowledge Data Verification
Prove data integrity and user eligibility without exposing sensitive PII or transaction details. Enables compliant DeFi and tokenization while maintaining strict data privacy.
ZK-SNARKs
Proof System
PII-Free
Verification
03
Regulator-Approved Access Controls
Granular, on-chain role-based access (RBAC) with multi-signature governance. Enforce jurisdiction-specific rules and provide regulators with secure, read-only access nodes.
SAML 2.0 / OIDC
Enterprise SSO
Custom Roles
Policy Engine
04
Reduced Compliance Overhead
Automate KYC/AML checks and transaction monitoring with programmable compliance modules. Cut manual review costs by up to 70% and eliminate reconciliation errors.
70%
Cost Reduction
Real-time
Monitoring
05
Secure Cross-Border Data Flows
Facilitate compliant international operations with built-in data residency rules and sovereign subnets. Isolate EU, US, and APAC data per jurisdictional requirements.
GDPR
Data Residency
Sovereign Subnets
Architecture
06
Institutional-Grade Uptime & Security
Enterprise SLA with 99.95% uptime, private validator sets, and regular penetration testing by firms like Halborn. Isolate your regulatory workload from public chain risks.
99.95%
Uptime SLA
Halborn Audited
Security
Architecture Decision Matrix
AppChain vs. Public Blockchain for Regulated Data Vaults
A technical comparison of infrastructure models for building compliant, high-performance data vaults for sensitive financial and identity data.
| Critical Factor | Public Blockchain (e.g., Ethereum Mainnet) | Chainscore AppChain |
|---|---|---|
Data Privacy & Sovereignty | Low (All data public/encrypted on-chain) | High (Private execution, off-chain data storage) |
Regulatory Compliance (GDPR, CCPA) | Extremely Difficult | Designed for Compliance |
Transaction Cost Predictability | Volatile (Gas fees fluctuate) | Fixed & Predictable (Controlled environment) |
Throughput & Performance | Shared (Subject to network congestion) | Dedicated (10,000+ TPS, sub-2s finality) |
Time to Market for MVP | 6-12 months (Compliance overhead) | 4-8 weeks (Pre-built compliance modules) |
Ongoing Security & Audit Burden | Your responsibility | Managed service with 99.9% SLA |
Total Cost of Ownership (Year 1) | $200K-$500K+ (Dev, audit, gas) | $50K-$150K (All-inclusive) |
Custom Rule Enforcement (KYC/AML) | Not natively supported | Native smart contract integration |
how-we-deliver
PREDICTABLE, AUDITABLE, AND SECURE
Our Delivery Process: From Compliance Audit to Mainnet
A structured, milestone-driven approach that de-risks your regulated data vault deployment. We deliver a production-ready AppChain with full compliance documentation, security certifications, and operational handover.
01
Phase 1: Compliance & Architecture Review
We conduct a comprehensive audit of your data handling and regulatory requirements (GDPR, CCPA, FINRA) to architect a compliant chain topology. Deliverables include a signed-off technical specification and a compliance gap analysis report.
2-3 weeks
Typical Duration
100%
Requirements Mapped
02
Phase 2: Core Protocol Development
Build your custom Substrate or Cosmos SDK-based chain with zero-knowledge proofs for private data verification and role-based access control modules. All code follows OpenZeppelin security patterns and is developed in Rust/Go.
4-6 weeks
Development Sprint
Solana/Cosmos
Protocol Expertise
03
Phase 3: Security & Penetration Testing
Rigorous third-party audit by firms like Trail of Bits or Quantstamp, followed by an internal penetration test targeting data exfiltration and privilege escalation vectors. We provide a public audit report and remediation verification.
Certified
Audit Report
Critical: 0
Post-Audit Status
04
Phase 4: Staging & Governance Setup
Deploy a fully mirrored staging environment for UAT. We configure your validator set, multisig governance contracts, and disaster recovery procedures. Includes comprehensive load testing and failover drills.
99.9%
Staging Uptime SLA
< 5 min
RPO/RTO Target
05
Phase 5: Mainnet Launch & Monitoring
Managed mainnet deployment with Genesis block creation and validator onboarding. We provide 24/7 monitoring via Chainscore Sentinel for chain health, data integrity alerts, and compliance event logging.
Zero-downtime
Launch Guarantee
24/7/365
SRE Support
06
Phase 6: Knowledge Transfer & Handover
Complete operational handover with documented runbooks, incident response plans, and administrator training. We establish a long-term support agreement for upgrades, compliance recertification, and scaling.
Full Docs
Knowledge Base
Ongoing
Support SLA
security-and-compliance
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built to your exact specifications.
We architect and deploy production-grade smart contracts that are secure, efficient, and maintainable. Every contract undergoes a rigorous development lifecycle, from initial design to final audit, ensuring reliability for your core business logic.
- Custom Logic: Tailored
Solidity 0.8+contracts for DeFi, NFTs, DAOs, and enterprise use cases. - Security-First: Built with
OpenZeppelinstandards and subjected to multi-stage audits before mainnet deployment. - Gas Optimization: Expert-level tuning to reduce user transaction costs by up to 40%.
- Full Ownership: You receive complete, well-documented source code and IP rights.
Deploy battle-tested contracts in as little as 2 weeks, backed by a 99.9% uptime SLA for critical functions.
AppChain Development
Frequently Asked Questions
Common questions from CTOs and compliance officers about building secure, regulated data vaults on dedicated blockchains.
A standard deployment from architecture to mainnet launch takes 6-10 weeks. This includes 2 weeks for design and specification, 3-4 weeks for core development and smart contract auditing, and 2-3 weeks for testing, deployment, and compliance checks. Complex integrations with legacy systems or novel privacy mechanisms can extend this timeline.
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