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Full-Stack Web3 dApp Development
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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
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

Legacy System to Mobile Wallet Migration

Securely bridge your enterprise or governmental identity data from legacy IAM systems and SQL databases to a custom mobile wallet with on-chain verifiable credentials.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built to your exact specifications.

We architect and deploy custom smart contracts that power your dApp's core logic. Our process ensures security-first development, gas optimization, and full audit readiness from day one.

  • Custom Logic: ERC-20, ERC-721, ERC-1155, DeFi primitives, DAO governance, and bespoke business rules.
  • Security by Design: Built with OpenZeppelin standards, formal verification, and comprehensive unit/integration testing.
  • Deployment & Management: Full lifecycle support from testnet to mainnet, including upgradeable proxy patterns and multi-signature wallet setups.

Reduce your time-to-market and technical risk with battle-tested code. We deliver contracts you can deploy with confidence.

Our engineers specialize in Solidity for EVM chains (Ethereum, Polygon, Arbitrum) and Rust for Solana, ensuring optimal performance and cost-efficiency for your chosen ecosystem.

key-features-cards
END-TO-END MIGRATION

Core Migration Capabilities

We execute a structured, secure migration from your legacy financial infrastructure to a modern, self-custodial mobile wallet. Our process minimizes downtime, eliminates data loss, and ensures regulatory compliance.

01

Legacy System Integration & Data Mapping

We build secure APIs to connect with your existing core banking, payment, or trading systems. Our team maps and validates all user data, balances, and transaction history for a seamless transfer.

Zero
Data Loss
100%
Data Integrity
02

Secure Key Generation & Custody Migration

We implement secure, audited protocols for generating and migrating cryptographic keys. Options include MPC (Multi-Party Computation) wallets or direct seed phrase provisioning with enterprise-grade security.

SOC 2
Compliant
MPC/HSM
Standards
03

Smart Contract Migration & State Synchronization

For DeFi or tokenized assets, we deploy and verify new smart contracts (e.g., staking, governance) and synchronize on-chain state with user balances in the new wallet, ensuring no loss of yield or positions.

< 1 hour
Sync Window
Full Audit
Contracts
04

Compliance & Regulatory Bridge

Our migration framework integrates necessary KYC/AML checks, transaction monitoring, and reporting tools to ensure the new wallet solution meets global financial compliance standards from day one.

FATF Travel Rule
Ready
Global
Compliance
05

User Onboarding & Communication Engine

We provide white-label communication templates, in-app guides, and a phased rollout strategy to ensure high user adoption and minimize support tickets during the migration event.

> 95%
Adoption Target
24/7
Support
06

Post-Migration Analytics & Support

Gain real-time dashboards tracking migration success, user activity, and system health. We provide ongoing support and optimization for 30 days post-launch to ensure stability.

Real-time
Dashboards
30-day
Guarantee
benefits
MEASURABLE RESULTS

Business Outcomes of a Successful Migration

Migrating from a legacy system to a modern mobile wallet is a strategic investment. Here are the concrete business and technical outcomes you can expect when partnering with Chainscore Labs.

01

Accelerated Time-to-Market

Leverage our battle-tested migration framework to launch your new mobile wallet in under 6 weeks, not months. We provide pre-audited smart contract templates and a proven integration pipeline.

< 6 weeks
Average Launch Time
80%
Code Reuse from Templates
02

Radically Reduced Operational Cost

Replace high-maintenance legacy servers with cost-efficient, auto-scaling blockchain infrastructure. Eliminate manual reconciliation and reduce backend engineering overhead by over 60%.

60%+
Backend Cost Reduction
Zero
Server Maintenance
03

Enhanced Security & Compliance Posture

Inherit enterprise-grade security from day one. Our migration includes formal verification of core logic, integration with MPC/TSS custody solutions, and built-in compliance tooling for AML/KYC.

100%
Formal Verification Coverage
SOC 2
Compliance Framework
04

Superior User Experience & Retention

Deliver instant transactions, seamless cross-chain swaps, and intuitive self-custody. Proven to increase user activation rates by 3x and reduce support tickets related to slow settlements.

3x
Higher User Activation
< 2 sec
Tx Confirmation
05

Future-Proof Architecture

Build on a modular stack that supports EVM, Solana, and Cosmos SDK chains. Our architecture ensures easy integration of new DeFi protocols, NFTs, and Layer 2 solutions without costly rewrites.

5+
Supported Chains
Modular
Protocol Design
06

Guanteed Uptime & Reliability

Enterprise SLAs with 99.9% uptime for critical wallet services, backed by multi-cloud RPC failover and 24/7 monitoring. We manage the infrastructure so you can focus on product growth.

99.9%
Uptime SLA
< 5 min
Mean Time to Recovery
Architectural Comparison

Legacy IAM vs. Mobile Wallet with VCs

A technical breakdown of key differences between traditional identity systems and modern, user-centric wallet architectures using Verifiable Credentials.

Architectural FactorLegacy IAM SystemMobile Wallet with VCs

User Data Control

Centralized (Provider)

Decentralized (User)

Identity Verification

Siloed, Repeated per Service

Portable, Verified Once

Onboarding Friction

High (Forms, KYC, Passwords)

Low (QR Scan, Biometric)

Compliance Burden

Your Responsibility

Shared with User & Issuer

Integration Time

3-6 months

4-8 weeks

Attack Surface

Central Database (High Risk)

Distributed Wallets (Reduced Risk)

User Experience

Fragmented Logins

Seamless, Passwordless Auth

Ongoing Maintenance

High (Patching, Scaling)

Low (Protocol Updates)

Typical Annual Cost

$200K-$1M+

$50K-$200K

how-we-deliver
MINIMIZE RISK, MAXIMIZE UPTIME

Our Phased Migration Methodology

We execute migrations with surgical precision, ensuring zero downtime for your users and zero loss of funds. Our battle-tested, four-phase approach de-risks the transition from legacy infrastructure to a modern mobile wallet.

01

Phase 1: Discovery & Architecture

We conduct a deep technical audit of your legacy system (e.g., monolithic banking APIs, custodial wallets) to map all user states, transaction flows, and security dependencies. This phase delivers a complete migration blueprint and risk assessment.

100%
Flow Coverage
< 1 week
Blueprint Delivery
02

Phase 2: Parallel Development & Staging

We build the new mobile wallet (React Native/Flutter) with secure key management (MPC/HSM) in an isolated staging environment. A shadow ledger runs in parallel, validating all logic against the legacy system without touching production funds.

0
Prod Impact
100%
Logic Validation
03

Phase 3: Gradual User Migration

Users are migrated in controlled cohorts using invitation-based flows. We implement dual-signing mechanisms and state synchronization to allow rollback at any point. Real-time dashboards track migration health and user adoption.

Cohort-Based
Rollout
Instant
Rollback Capability
04

Phase 4: Cutover & Legacy Decommission

Once 100% of users and assets are verified on the new system, we execute the final cutover. We provide post-migration monitoring for 30 days and assist in securely decommissioning the legacy infrastructure.

99.9%
Uptime SLA
30-day
Post-Migration Support
security
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built to your exact specifications, from token standards to complex DeFi logic.

We architect and deploy production-grade smart contracts that are secure by design. Our process integrates formal verification and multi-stage audits before any code touches mainnet.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 contracts with minting, vesting, and governance modules.
  • DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield optimizers.
  • Enterprise Logic: Custom business logic for supply chain, gaming (NFTs), and real-world asset (RWA) tokenization.

We deliver contracts with a 99.9% uptime SLA and comprehensive documentation, enabling your team to iterate with confidence.

Technical & Process Questions

Legacy System to Mobile Wallet Migration FAQs

Answers to common questions from CTOs and technical leads planning a secure, scalable migration from legacy financial systems to modern mobile wallets.

A standard migration for a single-currency wallet with core features (send/receive, balance) takes 4-6 weeks from kickoff to production. Complex migrations involving multi-chain support, DeFi integrations, or custom token standards typically require 8-12 weeks. We provide a detailed project plan with weekly milestones during discovery.

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