Circle's cirBTC surpasses 5,000 issued tokens

cirBTC: cirBTC is Circle's wrapped Bitcoin token designed as a 1:1 BTC-backed asset for institutional use in onchain finance. It features segregated custody at a regulated entity, redemption to native BTC, and independent verification of reserves through Chainlink Proof of Reserve with visible addresses on the Bitcoin blockchain. The token integrates with Circle's USDC infrastructure and supports deployment across Ethereum and Circle's Arc blockchain to enable Bitcoin collateral in lending, trading, and settlement workflows. Integration: cirBTC is built to work seamlessly with Circle Mint and USDC for institutional minting, redemption, and collateral flows on supported chains. Reserve Model: cirBTC maintains segregated BTC reserves separate from corporate assets with multi-address transparency for independent onchain verification. Platform Expansion: cirBTC has expanded from its initial Ethereum deployment to Circle's Arc blockchain to broaden access for institutional DeFi participants.