We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our engineers use Solidity 0.8+ with OpenZeppelin libraries and implement formal verification for critical logic.
LABS
Services
Legacy System Migration to Blockchain Ledger
Execute a full-scale migration to transition your existing financial ledger and expense tracking onto a secure, transparent blockchain infrastructure. We deliver a production-ready system with real-time data integrity and automated compliance.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
From initial audit to mainnet deployment, we ensure your contracts are secure, gas-optimized, and future-proof.
- Security-First Development: Multi-stage audits, automated testing with
Hardhat, and adherence to Consensys best practices. - Protocol-Specific Expertise:
ERC-20,ERC-721,ERC-1155,ERC-4626vaults, and custom governance systems. - Deliverables: Fully documented source code, deployment scripts, and a comprehensive security report.
key-features-cards
PROVEN METHODOLOGY
Our Migration Delivery Framework
A structured, four-phase approach designed to de-risk your legacy system migration, ensure data integrity, and deliver a production-ready blockchain ledger on schedule.
01
Discovery & Architecture
We conduct a comprehensive audit of your existing data models and business logic to design a future-proof, scalable ledger architecture. This phase defines the target state, migration scope, and technical specifications.
2-3 weeks
Typical Duration
100%
Logic Mapping
02
Data Integrity Pipeline
Build a secure, verifiable ETL pipeline with cryptographic data fingerprinting. We ensure zero data loss and full auditability from source system to on-chain state, with reconciliation reports.
99.999%
Data Fidelity
Immutable
Audit Trail
03
Smart Contract & Ledger Development
Development of core ledger logic in Solidity or Rust, implementing your business rules as verifiable smart contracts. Includes gas optimization, comprehensive testing, and security review.
OpenZeppelin
Security Standard
> 95%
Test Coverage
04
Deployment & Validation
Managed deployment to your chosen network (Ethereum, Polygon, etc.) with phased roll-out. We execute final validation, provide operational runbooks, and conduct knowledge transfer to your team.
< 72 hours
Go-Live Cutover
24/7
Launch Support
benefits
MEASURABLE RESULTS
Business Outcomes for Finance Teams
Our migration service delivers concrete operational and financial improvements, moving beyond ledger replacement to measurable business value.
01
Real-Time Settlement & Reconciliation
Replace batch processing with atomic, on-chain settlement. Eliminate reconciliation delays and reduce operational overhead by automating transaction finality.
< 5 seconds
Settlement Time
100%
Auto-Reconciliation
02
Immutable Audit Trail
Every transaction is cryptographically sealed on a tamper-proof ledger. Simplify compliance audits and provide regulators with verifiable, real-time access to transaction history.
24/7
Audit Access
Zero
Data Tampering Risk
03
Programmable Treasury Operations
Automate complex workflows like multi-signature approvals, scheduled payments, and compliance rules directly into the ledger logic, reducing manual intervention and errors.
90%
Process Automation
< 1 hour
Payment Execution
04
Reduced Counterparty & Custody Risk
Leverage smart escrow and atomic swaps to eliminate settlement risk. Assets move only when conditions are met, protecting your treasury from default exposure.
Eliminated
Settlement Risk
Non-Custodial
Asset Control
05
Unified Ledger for Assets & Data
Consolidate tokenized securities, stablecoins, and traditional book entries onto a single source of truth. Gain a holistic, real-time view of all financial positions.
Single Source
of Truth
Real-Time
Portfolio View
06
Lower Transaction & Infrastructure Costs
Cut costs associated with intermediaries, manual processing, and legacy system maintenance by migrating to a streamlined, automated blockchain stack.
40-60%
Ops Cost Reduction
Eliminated
Intermediary Fees
Technical & Operational Comparison
Legacy Ledger vs. Blockchain-Based Ledger
A side-by-side analysis of traditional database systems versus modern blockchain infrastructure for financial ledgers, highlighting key differences in architecture, security, and operational overhead.
| Feature / Capability | Legacy Database Ledger | Blockchain-Based Ledger |
|---|---|---|
Data Integrity & Immutability | Centralized trust; data can be altered by admins. | Cryptographically secured; append-only, immutable records. |
Settlement Finality | Delayed; requires batch reconciliation (hours/days). | Near-instant; cryptographic proof provides finality (<2 sec). |
Audit Trail & Transparency | Opaque; internal logs require manual verification. | Transparent; all transactions are publicly verifiable on-chain. |
Operational Cost (Year 1) | High ($200K-$500K for dev, infra, maintenance). | Lower ($50K-$150K for development and managed services). |
Time to Implement New Features | Slow (6-12 months for major upgrades). | Fast (4-8 weeks for smart contract deployment). |
Security Model | Perimeter-based; single point of failure risk. | Cryptographic; decentralized consensus eliminates single points. |
Interoperability | Limited; requires custom APIs and integrations. | Native; composable with DeFi protocols and cross-chain bridges. |
Disaster Recovery | Complex; relies on backups and failover systems. | Inherent; network redundancy and global node distribution. |
Regulatory Compliance | Manual reporting; expensive to prove compliance. | Programmable; compliance logic can be embedded in smart contracts. |
how-we-deliver
PROVEN PROCESS
Our 4-Phase Migration Methodology
A structured, risk-mitigated approach to modernize your financial ledger. We ensure zero data loss, full compliance, and minimal business disruption.
01
Phase 1: Discovery & Architecture
We conduct a comprehensive audit of your existing systems, data models, and business logic. This phase delivers a detailed migration blueprint, smart contract architecture, and a phased rollout plan.
Key Deliverables: Gap analysis report, target blockchain selection (e.g., Ethereum, Polygon, Base), and a detailed technical specification.
2-3 weeks
Typical Duration
100%
Logic Mapping
02
Phase 2: Smart Contract Development
Our engineers build the core ledger logic as audited, gas-optimized smart contracts. We implement critical features like role-based access control, multi-signature approvals, and immutable audit trails using OpenZeppelin standards.
Key Deliverables: Production-ready Solidity/Vyper contracts, unit test suite, and initial security review report.
4-6 weeks
Development Time
OpenZeppelin
Security Foundation
03
Phase 3: Data Migration & Integration
We execute the secure, validated migration of historical ledger data onto the new blockchain. Our tooling ensures data integrity and creates a bidirectional bridge for seamless integration with your existing ERP, CRM, and accounting systems via secure APIs.
Key Deliverables: Migrated dataset with cryptographic proof, custom API endpoints, and integration documentation.
Zero Loss
Data Integrity
REST/GraphQL
API Standards
04
Phase 4: Deployment & Governance
We manage the mainnet deployment with comprehensive monitoring, final security audits, and team training. We establish ongoing governance models, including upgrade mechanisms and key management procedures, ensuring you maintain full control.
Key Deliverables: Live production system, 24/7 monitoring dashboard, operational runbooks, and knowledge transfer sessions.
99.9% SLA
Post-Launch Uptime
Full Handoff
Client Ownership
security-compliance
FULL-STACK INFRASTRUCTURE
Custom Blockchain Development
Build, deploy, and scale custom blockchain networks and applications tailored to your business logic.
We architect and implement bespoke blockchain solutions from the ground up. Our full-cycle development delivers production-ready networks with custom consensus, tokenomics, and governance models.
- Layer 1 & 2 Development: Build sovereign chains or application-specific rollups using
Substrate,Cosmos SDK, orOP Stack. - Smart Contract Ecosystems: Deploy secure, audited contracts for
ERC-20,ERC-721,ERC-1155, and custom standards. - Node Infrastructure: Provision and manage high-availability validator nodes with 99.9% uptime SLAs.
- Cross-Chain Bridges: Develop secure, trust-minimized bridges for asset and data interoperability.
We focus on performance and security first, ensuring your network is built for scale and audit-ready from day one.
Deliverables include complete technical documentation, on-chain analytics dashboards, and developer tooling for your team. Typical MVP delivery is 6-8 weeks.
Technical & Commercial FAQs
Legacy System Migration: Common Questions
Answers to the most frequent questions from CTOs and technical leads planning a blockchain migration.
Our standard migration projects are delivered in 8-12 weeks, from initial audit to production deployment. This includes a 2-week discovery phase, 4-6 weeks for core development and data migration, and 2 weeks for testing and deployment. For complex systems with over 10M records, we implement phased rollouts to minimize risk.
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