circle launches wrapped bitcoin on ethereum and arc
Circle Launches Wrapped Bitcoin on Ethereum and Arc: cirBTC
The company behind USDC wants to hold your Bitcoin. In May 2026, Circle announced wrapped Bitcoin on Ethereum and Arc: a token called cirBTC, backed 1:1 by native BTC and issued through the same Circle Mint infrastructure that handles USDC and EURC, according to Eco's cirBTC explainer.