Circle has unveiled cirBTC, a token designed to mirror bitcoin on compatible blockchain networks. The asset is backed 1:1 by bitcoin, enabling traders and developers to deploy BTC-denominated value within decentralized finance (DeFi) applications.
What is cirBTC?
CirBTC is a tokenized representation of bitcoin intended to function on smart contract platforms. Each unit is backed by an equivalent amount of bitcoin, aiming to provide holders with on-chain utility while maintaining exposure to the world’s largest cryptocurrency by market capitalization.
How it could be used
By bringing bitcoin liquidity onto programmable networks, cirBTC is intended to expand the ways BTC can interact with DeFi. Potential use cases include:
- Providing collateral for borrowing and lending markets
- Supplying liquidity to automated market makers and decentralized exchanges
- Facilitating participation in derivatives and structured products built on-chain
- Enabling more efficient transfers and settlement within DeFi protocols
Broader context
Circle, the company behind the USDC stablecoin, is extending its tokenization efforts to bitcoin as demand grows for interoperable assets across blockchain ecosystems. Tokenized bitcoin formats have become a key bridge between Bitcoin’s liquidity and the smart contract capabilities of other networks, offering market participants additional avenues to deploy BTC in on-chain finance.