Inside Jar’s Digigold Architecture for Scale and Trust
4 min read · Written by Kaushal Singh, Tejas Rajanna
How do you engineer a financial platform for massive scale? We go inside the Digigold stack to reveal the architectural principles—from our parallel processing engine to our multi-cloud resilience—that eliminate bottlenecks and guarantee trust.
At Digigold, we aren't just providing a digital gold service; we are engineering the foundational layer for the future of digital assets. Our journey, born from operating at the massive scale of Jar, taught us a critical lesson: true scale isn’t just about handling more users, it’s about architecting a system that is fundamentally resilient, secure, and infinitely elastic.
When we faced limitations with existing solutions, we didn't just iterate; we went back to the drawing board. We built a platform from the ground up, designed to solve the hardest problems of a high-throughput financial ecosystem. This is a look inside the core pillars of that architecture—an infrastructure built to offer our partners an unparalleled competitive advantage.
The Throughput Engine: Achieving Near-Limitless Concurrency
To achieve massive throughput, we moved beyond the traditional single-ledger model. Our architecture is built on a principle of resource subdivision, distributing inventory across a vast number of discrete units. This allows our system to apply fine-grained concurrency controls, isolating the scope of each transaction.
The result is a highly parallel environment where throughput can be scaled linearly by provisioning more such units as demand grows.

Security & Isolation: A Multi-Tenant Fortress by Design
Onboarding a new business partner should never compromise the security of existing ones. Our multi-tenancy architecture is built on the principle of absolute isolation.
Every single API request passes through our Secure Gateway Service, which acts as a relentless gatekeeper. Before any request proceeds, it undergoes a rigorous, multi-factor validation process.
This approach has enabled us to onboard dozens of institutional partners without a single cross-tenant data exposure or authorization incident. Each tenant operates in an isolated environment with deterministic request tracing — a fortress that scales safely.

The Unbreakable Ledger: Guarantees of Accounting Integrity
For a financial platform, trust is not a feature; it is the product. We have embedded uncompromising principles of accounting integrity deep into the fabric of our system.
The Zero-Sum Guarantee
The most important rule in our system is that gold can never be created or destroyed, only moved. Our platform operates on a strict zero-sum principle, making it mathematically impossible to sell gold that doesn't exist.
Double-Entry Bookkeeping
To provide crystal-clear auditability, we've implemented a digital version of the 500-year-old double-entry bookkeeping system. This ensures our books are always balanced and provides a complete, verifiable audit trail for every single gram of gold.

Data Immutability
Core transaction records in our system are partially immutable. Once created, the essential details—like the amount, source, and destination—are permanently fixed and can never be changed, guaranteeing the integrity of your historical records.
The system now reconciles over 5 million ledger movements every single day with zero mismatched balances—a scale that proves accounting integrity isn’t theoretical, it’s operational. Every transaction remains verifiable through its immutable audit trail — a digital paper trail that cannot lie.

Always-On: A Commitment to Unshakeable Reliability
We know that every second of downtime impacts your business and your customers' trust. Our architecture is designed for enterprise-grade resilience and true business continuity.
This architecture has delivered 99.995% uptime over the past 12 months, even during multi-region maintenance events. Failovers complete within seconds, ensuring that end users never experience downtime or stale balances.

Built for Tomorrow, Ready Today
The Digigold platform is more than just a set of features; it's a statement of engineering excellence forged from real-world experience at extreme scale.
Today, that foundation powers millions of active gold savers, across multiple partner platforms, handling billions in asset movement annually — and scaling smoothly as new digital assets join the ecosystem.
Any business that wants to build savings, investment, or rewards-based products on Digital Gold or Silver can leverage our platform to launch immediately. We provide flexible integration options to match your team's needs:
• S2S API: For teams that want full control over execution and the user experience.
• Headless SDK: The perfect balance, offering flexibility to design your own user journeys on our powerful backend.
• Express SDK: A plug-and-play solution with pre-built, white-label flows, refined from our learnings at Jar for maximum conversion.