Circle, best known as the issuer of the USDC stablecoin, has officially unveiled cirBTC, a new wrapped bitcoin token fully collateralized 1:1 by native bitcoin. The company says the product's reserves will be independently verifiable onchain in real time, eliminating reliance on third-party attestations or opaque custodians. This move marks Circle's first major expansion beyond stablecoins into tokenized bitcoin infrastructure.
Real-Time Onchain Reserve Checks for Institutional Trust
Each cirBTC token is backed by an equivalent amount of native bitcoin held in reserve. Circle emphasizes that users can verify the collateral data directly on the blockchain, bypassing traditional periodic reports or external audits. The product is built on the same principles as Circle's stablecoins — consistent issuance, auditable reserves, and broad liquidity — aiming to offer counterparties a trusted, neutral wrapped BTC option.
The announcement specifically addresses the billions of dollars in bitcoin that remain outside DeFi due to trust and transparency concerns. Circle cites over $1.7 trillion worth of bitcoin currently sitting outside DeFi because of these gaps, and positions cirBTC as a solution to unlock that capital.
Multi-Chain Architecture: Ethereum and Arc First
cirBTC is designed for cross-chain mobility and will launch initially on Ethereum and Arc, Circle's Layer 1 blockchain focused on stablecoins. It will integrate natively with USDC, Arc, and Circle Mint. Target use cases include OTC desks, market makers, lending protocols, derivatives platforms, and liquidity providers. Institutions can use cirBTC as collateral or settlement asset in both crypto-native and traditional finance settings.
Regulatory Scaffolding and Launch Timeline
The product leverages Circle's existing regulated platform, which includes Money Transmitter licenses, a New York Virtual Currency Business Activity license, and a Bermuda Monetary Authority license. The cirBTC product page lists it as “coming soon” with no confirmed launch date, pending regulatory approvals. Institutions can join a waitlist or contact Circle directly. Standard risk disclosures accompany the page, noting digital asset price volatility, lack of legal tender status, and absence of deposit insurance.
With cirBTC, Circle extends its reserve and compliance model to bitcoin for the first time, reinforcing its shift from stablecoin issuer to full-stack infrastructure provider. However, the wrapped bitcoin market already hosts several established players, and whether Circle can gain meaningful traction remains to be seen.