Secure Blockchain Payment Solutions
Transparency and security at the core of every transaction.
Corvx engineered a blockchain-backed payment infrastructure for a fintech company processing cross-border transactions. The platform combines distributed ledger technology for immutable audit trails with AI-driven fraud detection that analyzes thousands of transactions per second, delivering the speed of modern payments with the security and transparency that regulators demand.
The client is a Series B fintech startup focused on cross-border B2B payments in Southeast Asia. Its existing payment rails were slow, with 3-5 day settlement, limited transaction visibility, and 3-5% fees per transaction. It needed a platform for faster settlement, clearer status, and compliance across multiple jurisdictions.
What stood in the way
Multi-Jurisdiction Compliance
Operating across 5 countries meant navigating different regulatory frameworks, KYC/AML requirements, and data residency laws simultaneously. A single compliance failure could shut down operations in an entire market.
Settlement Speed & Cost
Legacy banking rails meant 3-5 day settlement times and fees that made small transactions economically unviable. The client needed sub-minute settlement at a fraction of the cost.
Fraud at Scale
As transaction volumes grew, so did fraud attempts. The existing rule-based detection system was generating too many false positives (18%) while missing sophisticated attack patterns.
How we solved it
Blockchain Settlement Layer
We implemented a permissioned blockchain (Hyperledger Fabric) for the settlement layer, providing immutable transaction records, real-time auditability, and multi-party consensus. Settlement times dropped from days to under 30 seconds.
AI Fraud Detection Engine
A real-time ML pipeline that analyzes transaction patterns, device fingerprints, and behavioral signals. False positive rates dropped from 18% to 2.3% while catching 99.4% of fraudulent transactions.
Banking Rail Integration
Custom API integrations with 12 banking partners across 5 countries, supporting real-time balance checks, instant disbursement, and automated reconciliation.
The platform processed over $120M in cross-border payments within its first year. Average settlement time dropped from 3-5 days to under 30 seconds, transaction fees decreased by 70%, and the fraud detection system saved an estimated $4.2M in prevented losses.
Built with
Blockchain
- Hyperledger Fabric
- Smart Contracts (Chaincode)
- CouchDB
AI & ML
- Python
- TensorFlow
- Apache Flink
- Feature Store
Backend
- Go-Lang
- gRPC
- PostgreSQL
- Redis
Infrastructure
- AWS (EKS, MSK, SageMaker)
- Terraform
- Vault (HashiCorp)
Security-First, Compliance-Always
Phase 1: Regulatory Mapping
4 weeksMapped compliance requirements across all 5 target jurisdictions. Defined the KYC/AML, data residency, and reporting rules that would inform every architectural decision.
Phase 2: Blockchain Core
3 monthsBuilt the permissioned blockchain network, consensus mechanisms, and smart contracts for multi-party settlement.
Phase 3: Fraud & Banking
2 monthsDeveloped the AI fraud detection pipeline and integrated with 12 banking partners. Ran shadow-mode testing against live transaction data.
Phase 4: Production & Scale
3 monthsPhased production rollout market-by-market with real-time monitoring, incident response procedures, and regulatory reporting dashboards.
What we brought to the table
Blockchain Infrastructure
Permissioned distributed ledger for immutable, auditable transaction records.
Fraud Detection
AI-driven anomaly detection with 99.4% accuracy and 2.3% false positive rate.
Banking Integration
Real-time connectivity with 12 banking partners across 5 countries.
Security-First Development
Compliance and audit requirements were part of the design from day one. Threat modeling, penetration testing, and compliance reviews were part of every sprint, rather than a final gate.
Client quotes are published with permission. The project record above is the source for scope, method, and outcomes.Corvx project record
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