The Problem
RAILGUN is a privacy protocol that enables shielded transfers and private DeFi interactions across multiple EVM chains. Their system relies on scanning on-chain events to reconstruct private balances — a process that demands deep access to call traces and transaction internals.
As RAILGUN expanded from single-chain to multi-chain privacy pools spanning Ethereum, BNB Chain, Polygon, and Arbitrum, their existing indexing setup couldn’t keep up. Competing indexers lacked the call tracing support RAILGUN needed, and balance scanning times were becoming a bottleneck for users.
Why RAILGUN Chose SQD
SQD was the only indexing solution that provided the call tracing capabilities RAILGUN required. The combination of deep trace-level data access and multi-chain support made it possible to power privacy pools across four chains simultaneously.
Results
- Multi-chain privacy pools across Ethereum, BNB Chain, Polygon, and Arbitrum
- Significantly reduced balance scanning times
- Call tracing support that competing indexers couldn’t provide