Blockchain-Based OTC Trade Repository

India FinTech / Capital Markets Strategic Technology Partner & Blockchain Architect

Immutable Ledger: Blockchain-Based OTC Derivatives Trade Repository

FinTech, Regulatory Technology (RegTech) Blockchain Implementation Disaster Recovery Planning Capital Markets Distributed Ledger Technology (DLT) AWS High-Availability Blue/Green Deployment API Integration (R/Python) Enterprise Security (SSL/TLS)

Executive Summary

Renderbit was commissioned to architect a secure, compliant Trade Repository (TR) for Over-the-Counter (OTC) derivatives. In a market demanding absolute data integrity and auditability, we moved beyond traditional databases to a Blockchain-enabled solution. We delivered a platform that balances the immutability of DLT with the robust, high-availability infrastructure of AWS, ensuring 99% uptime, seamless disaster recovery, and granular role-based access control for regulators and clients.

The Solution: A Hybrid of Blockchain & Cloud

We engineered a solution that uses Blockchain for the “Trust Layer” and AWS for the “Scale Layer.”

Enterprise-Grade Resilience (The DR Strategy)
- Multi-AZ Deployment: We architected a “Blue/Green” deployment strategy across multiple AWS Availability Zones (AZs) to immunize the system against single-point failures.
- Failover Architecture: Implemented High-Availability (HA) servers behind load balancers. If a primary node fails, traffic instantly reroutes to a healthy node.
- Catastrophic Recovery: Established a Disaster Recovery (DR) protocol with a dedicated server in a separate physical data center and automated off-site database backups to safeguard against natural disasters.
The Security Fortress
- Protocol-Layer Auth: Authentication and authorization are enforced at the blockchain protocol layer, ensuring that access logic is immutable and tamper-proof.
- Dual-Layer Encryption: Implemented database encryption for data-at-rest and SSL/TLS for data-in-transit, neutralizing threats from physical theft or network eavesdropping.
- Kill-Switch Protocols: Designed instant invalidation workflows for compromised access keys and automated suspension triggers for suspicious activities (e.g., brute-force attacks).
Optimized Data Processing
- Smart Ingestion: Prioritized structured flat-file imports (CSV/XLS/YAML) for speed and accuracy, while allowing for custom structured PDF parsing where necessary.
- Configurable Latency: To optimize costs without sacrificing utility, we implemented a configurable “Batch Execution” model (defaulting to 15-minute slabs), avoiding the computational overhead of pure real-time processing while meeting business SLAs.

Technical Architecture & Strategic Rationale

Our stack prioritizes “Auditability” and “Uptime.”

Component	Technology	Strategic Rationale
Infrastructure	AWS (Multi-AZ)	Selected for its global footprint and automated security patching to guarantee 99% targeted uptime.
Security	AWS WAF & Shield	Application Firewall deployed to filter botnets, block DDoS attacks, and manage inbound malicious traffic.
Ledger	Blockchain Protocol	Chosen to provide a “single source of truth” where trade records are immutable and verifiable by auditors.
Analytics	API (R/Python/Tableau)	Instead of bloating the core app with visualization tools, we exposed secure API endpoints, allowing Data Analysts to use their preferred tools (R/Python) for deep-dive analytics.
Interoperability	CSV/XLS Exports	Ensured data portability for non-technical users, allowing easy export to Excel for ad-hoc analysis.

Fintech

Core Focus

Regulatory Compliance, Distributed Ledger Technology (DLT), High-Availability Infrastructure

The Strategic Challenge: Trust & Resilience

The primary hurdle was creating a system that satisfies strict regulatory demands for data retention and security while handling sensitive financial data. The critical "Points of Failure" we needed to address included:

Regulatory Compliance: Meeting flexible data retention mandates without architectural bottlenecks.
Data Sovereignty & Security: Protecting against both physical data center failures and sophisticated cyber threats (MITM, brute force).
Operational Latency: Balancing the computational heaviness of real-time processing with the market's need for timely data reflection.
Complex Access Hierarchies: Managing distinct permissions for Public, Client, Admin, and Auditor roles without crossover.

The Impact: Delivered Value

Renderbit delivered a platform that is not just a repository, but a compliance engine:

Audit-Ready Transparency: The platform provides specific views for "Reviewers/Auditors" and "TR Data Analysts," streamlining regulatory audits.
Zero-Downtime Architecture: The Multi-AZ and DR strategy ensures business continuity even during critical infrastructure outages.
Scalable Retention: Built a storage architecture with no technical ceiling on data retention duration, allowing the client to adapt to changing legal requirements effortlessly.
Secure Multi-Tenancy: Successfully segregated data visibility across Clients (View Only vs. Upload) and Admins, preventing data leakage in a multi-client environment.

Ready to Build Trust into Your Infrastructure?

If you need a technology partner who understands the intersection of Finance, Blockchain, and Regulatory Compliance, Renderbit is ready. We build systems that regulators trust and businesses rely on.

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