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Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

KYC Legacy System Modernization

We migrate your traditional, siloed KYC databases to decentralized storage models. This improves security, enables cross-platform interoperability, and returns data control to users while maintaining full compliance.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built for production on EVM and Solana.

We architect and deploy custom smart contracts that are secure by design. Every contract undergoes rigorous audits using both automated tools and manual review by our in-house security team before deployment to mainnet.

  • Production-Ready Code: Built with Solidity 0.8+ or Rust, following OpenZeppelin standards and security best practices.
  • Full Lifecycle Support: From initial architecture and development through to deployment, monitoring, and upgrade management.
  • Key Deliverables: Gas-optimized contracts, comprehensive documentation, and a formal verification report.

Reduce your time-to-market and technical risk. We deliver battle-tested contracts with a 99.9% uptime SLA for core logic, enabling you to launch confidently.

key-features-cards
PROVEN PROCESS

Our Migration & Modernization Capabilities

We execute a structured, low-risk migration from legacy KYC systems to modern, compliant blockchain infrastructure. Our focus is on data integrity, regulatory adherence, and zero business disruption.

01

Legacy System Assessment & Data Mapping

Comprehensive audit of your existing KYC workflows and data schemas. We map all customer data points, compliance rules, and integration touchpoints to ensure a complete and accurate migration blueprint.

100%
Data Integrity
< 1 week
Assessment Phase
02

Secure On-Chain Identity Migration

Migrate verified user identities to privacy-preserving on-chain attestations using standards like Verifiable Credentials (W3C) and ERC-725/ERC-735. Maintains user control and regulatory compliance (GDPR, CCPA).

Zero-Knowledge
Proofs
ERC-725/735
Standards
03

Smart Contract Rule Engine Deployment

Replace rigid legacy logic with upgradable smart contracts that encode KYC/AML rules. Enables real-time compliance checks, automated sanctions screening, and programmable risk tiers directly on-chain.

Sub-second
Verification
OpenZeppelin
Audited
04

API Gateway & Integration Layer

Deploy a secure, scalable API layer that connects your modernized KYC system to existing front-ends, banking partners, and regulatory reporting tools. Provides a seamless interface for your engineering team.

99.9%
Uptime SLA
REST & GraphQL
APIs
05

Compliance Dashboard & Monitoring

Gain real-time visibility into KYC status, audit trails, and regulatory reporting. Our dashboard provides alerts for suspicious activity and automated reporting for FATF Travel Rule, FinCEN, and other regulators.

Real-time
Alerts
FATF Compliant
Reporting
06

Post-Migration Support & Optimization

We provide ongoing support, performance monitoring, and iterative optimization of your KYC stack. Includes gas cost optimization, rule updates for new regulations, and scalability tuning.

24/7
Support
Ongoing
Optimization
benefits
FROM LEGACY BURDEN TO COMPETITIVE ADVANTAGE

Business Outcomes of Decentralized KYC Storage

Modernizing KYC with decentralized storage transforms a compliance cost center into a secure, scalable asset. Here's what our clients achieve.

01

Eliminate Data Breach Liability

Replace centralized databases with user-controlled, encrypted storage. Sensitive PII is never held on your servers, dramatically reducing your attack surface and regulatory liability for breaches.

Zero
PII on Your Servers
AES-256
End-to-End Encryption
02

Slash Compliance & Audit Costs

Automated, immutable audit trails on-chain replace manual reporting. Prove compliance in real-time with cryptographic proofs, reducing audit preparation time and associated legal fees by over 70%.

>70%
Audit Cost Reduction
Real-time
Compliance Proofs
03

Enable Global User Portability

Users own and control their verified credentials via decentralized identifiers (DIDs). They can reuse KYC across your ecosystem and partner platforms, removing onboarding friction for new services.

< 60 sec
Cross-Service Onboarding
W3C
DID/VC Standard
04

Future-Proof Regulatory Agility

A modular, smart contract-based policy engine allows you to update KYC rules and jurisdiction-specific requirements via governance, not costly system overhauls. Adapt to new regulations in days, not months.

Days
Regulation Adaptation
Modular
Policy Engine
05

Unlock New Revenue Streams

With user-permissioned data sharing, create premium B2B data insights or verification-as-a-service offerings for partners. Monetize your compliance infrastructure without handling raw user data.

B2B API
New Product Line
User-Consented
Data Sharing
06

Achieve Enterprise-Grade SLAs

Our architecture, built on proven decentralized storage networks like IPFS/Arweave with blockchain anchoring, delivers the reliability and availability demanded by financial institutions.

99.95%
System Uptime SLA
< 2s
Credential Retrieval
Technical & Operational Comparison

Legacy vs. Modernized KYC Architecture

A side-by-side analysis of traditional KYC systems versus a modern, blockchain-integrated approach built by Chainscore. This table highlights the technical, operational, and business impact of modernization.

Architecture ComponentLegacy KYC SystemChainscore Modernized KYC

Data Silos & Integration

Fragmented across vendors, high-cost APIs, manual reconciliation

Unified API layer with single source of truth, automated on-chain/off-chain sync

User Onboarding Time

3-7 days for full verification

< 10 minutes for automated Tier 1, < 24h for enhanced due diligence

Compliance Cost per User

$15-$50+ (manual review, vendor fees)

$1-$5 (automated workflows, reusable credentials)

Fraud Detection & Audit Trail

Centralized logs, difficult to prove immutability, prone to tampering

Immutable audit trail on-chain, verifiable proof of compliance checks

Global Regulatory Adaptability

Monolithic, requires months to adapt to new jurisdictions

Modular rule engine, updates deployed in < 2 weeks for new regions

User Data Portability & Control

Zero portability; data locked with provider, high re-verification costs

Self-sovereign identity principles; users own and reuse verifiable credentials

Developer Experience & API

Complex, document-heavy SOAP/REST APIs, poor documentation

REST & GraphQL APIs with SDKs, comprehensive docs, sandbox environment

Uptime & Reliability SLA

99.5% typical, with multi-hour outage risks

99.9% SLA with multi-region failover and real-time monitoring

Total Cost of Ownership (Year 1)

$200K-$1M+ (licenses, integration, maintenance)

$50K-$250K (subscription + implementation, predictable scaling)

Time to Implement New Workflow

6-12 months (vendor negotiations, custom dev)

4-8 weeks (configure rules, integrate APIs, deploy smart contracts)

how-we-deliver
MINIMIZE RISK, MAXIMIZE UPTIME

Our 4-Phase Migration Methodology

A proven, phased approach to modernize your KYC/AML infrastructure with zero business disruption. We de-risk the transition from legacy systems to a secure, scalable blockchain-native stack.

01

Phase 1: Discovery & Architecture

We conduct a comprehensive audit of your existing KYC workflows, data models, and compliance rules. Our team designs a modular smart contract architecture and defines the on-chain/off-chain data strategy, ensuring regulatory adherence from day one.

2-3 weeks
Assessment Timeline
100%
Rule Coverage Map
02

Phase 2: Smart Contract Development

Our certified developers build your core KYC verification and credential management contracts using battle-tested patterns (ERC-725, Soulbound Tokens). Every line is peer-reviewed and undergoes automated security scanning prior to formal audit.

OpenZeppelin
Security Standard
Formal Audit
Pre-Deployment
03

Phase 3: Staged Deployment & Integration

We deploy the new system in a staged, canary release parallel to your legacy stack. Our integration layer ensures seamless data sync and fallback capabilities, guaranteeing 100% operational continuity during the cutover.

Zero-Downtime
Migration SLA
Parallel Run
Risk Mitigation
04

Phase 4: Go-Live & Continuous Compliance

Final cutover to the new production system, followed by 30 days of enhanced monitoring and support. We provide ongoing compliance dashboards and automated update mechanisms for evolving regulatory requirements (e.g., Travel Rule, MiCA).

30-day
Post-Launch Support
Real-time
Compliance Dashboard
From Assessment to Production

Typical Project Timeline & Deliverables

A transparent breakdown of our phased approach to modernizing your KYC/AML infrastructure, detailing key milestones, deliverables, and timeframes for a predictable project execution.

Phase & Key DeliverablesTimelineYour Team's RoleChainscore Deliverables

Discovery & Architecture Design

1-2 weeks

Provide access to legacy systems and compliance requirements

Technical assessment report and modernized system architecture

Core Engine & Smart Contract Development

3-5 weeks

Review and approve API specifications and contract logic

Production-ready smart contracts for identity verification and compliance rules

API Gateway & Integration Layer

2-3 weeks

Coordinate internal system access for integration testing

REST/GraphQL APIs, webhook endpoints, and SDKs for your stack

Security Audit & Penetration Testing

1-2 weeks

Participate in audit review sessions

Full audit report from a third-party firm and remediation support

Staging Deployment & UAT

1-2 weeks

Execute comprehensive user acceptance testing

Deployed staging environment, test data, and documentation

Production Launch & Go-Live Support

1 week

Final approval for production cutover

Production deployment, monitoring setup, and launch support handoff

Technical & Commercial Details

KYC Modernization FAQs

Answers to common questions from CTOs and product leaders evaluating blockchain-based KYC modernization.

A standard deployment for a modular, blockchain-based KYC system takes 4-8 weeks from kickoff to production. This includes 2 weeks for requirements & architecture, 3-4 weeks for core development and smart contract audits, and 1-2 weeks for integration and go-live. Complex, multi-jurisdictional systems with custom compliance logic can extend to 12 weeks.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team
KYC Legacy System Modernization | Chainscore Labs | ChainScore Guides