01
Designed Taproot vault mechanics for locking and reclaiming Bitcoin.
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Signature blockchain build
Covenant
Protocol & Product Engineering
A Bitcoin-native stablecoin protocol designed to create dollar liquidity while keeping Bitcoin at the center of the product.
Complex protocol, clear journey
The product compresses custody, liquidity and collateral logic into an understandable four-step flow.
Bitcoin-native architecture
The experience is designed around Bitcoin rather than treating it as an afterthought to another chain.
The challenge
The operating problem behind the product.
Give Bitcoin holders access to dollar liquidity without forcing them to sell their BTC or move collateral to another chain.
QuadB’s role
QuadB led the protocol and product engineering across custody mechanics, collateral rules, price monitoring, minting, redemption and the user journey.
What was built
A product architecture shaped around the real workflow.
02
Built cbUSD minting and redemption flows with price monitoring and collateral rules.
03
Translated deep protocol behavior into a clear four-step experience: lock BTC, mint cbUSD, use liquidity and reclaim BTC.
Product capabilities
BitcoinTaprootProtocol engineeringCollateral systemsProduct design
Next case study
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