A leading crypto market maker was losing edge during high-volatility events because their MPC wallet provider couldn't guarantee sub-100ms signing latency. They needed custody control without sacrificing speed.
This top-10 crypto market maker executes hundreds of thousands of orders daily across Binance, Bybit, OKX, and other major venues. Their operations depend on microsecond-precision execution. They were using a Fireblocks MPC solution for custody, which had become a bottleneck.
The problem became acute during volatile market conditions:
They needed self-custody with wire-speed execution—something no traditional MPC provider could offer. Every failed opportunity during volatility cost them real edge.
ZeroCopy deployed a multi-enclave Sentinel fleet across 3 regions, with custom venue adapters for Binance, Bybit, and OKX. The architecture:
Trading Engine (primary) → Sentinel Fleet (3x enclaves, active-active) → Venue Adapters → CEX APIs
Failover: If primary enclave becomes unavailable, secondary takes over within <500ms. Kill switch: Hardware-enforced position halt with cryptographic proof.
The full deployment took 8 weeks with load testing, venue integration validation, and emergency procedure drills. The market maker ran parallel operations (Fireblocks + Sentinel) for 2 weeks before cutting over completely.
1,786x improvement in signing latency. P99 latency now 42µs even during extreme volatility. The market maker has parity with direct signing infrastructure.
Key sovereignty. Hardware isolation means Fireblocks (and any MPC vendor) has zero access to private keys. Keys are only ever in the enclave.
Uptime target. Multi-enclave fleet across 3 regions with active-active failover. Architecture designed for zero unplanned downtime.
Kill switch latency. Custom halt mechanism enforced in hardware. Emergency position freeze with cryptographic proof-of-halt sent to all venues.
The impact was immediate. On their first major volatility event after cutover, the market maker filled 47% more orders during the peak 2-minute spike compared to their historical Fireblocks performance. They're now running the same signing latency as competitors with direct infrastructure—but with full self-custody.
They've reduced their third-party dependencies to zero. Fireblocks is no longer a chokepoint. This unlocks new trading strategies that were previously unfeasible due to latency constraints.
"During the last flash crash, our fills were executing while competitors were still waiting for signatures. We're no longer constrained by vendor latency. We have wire-speed execution with full key sovereignty."
Self-custody at wire-speed. Multi-venue deployment. Zero vendor key risk.
Start a pilot deployment