1:1 Bitcoin Backing: Circle Details cirBTC Isolated Custody and On-Chain Reserve Verification

Odaily News, Circle has published a statement on the cirBTC reserve mechanism, stating that each cirBTC is backed 1:1 by one native BTC and can be redeemed for native BTC at a 1:1 ratio. The corresponding BTC is held by Circle-affiliated entities and custodied by Circle National Trust, which is regulated by the Office of the Comptroller of the Currency (OCC). The reserve assets are segregated from Circle's corporate assets and are used solely to protect the interests of cirBTC holders. cirBTC is currently live on Ethereum and will receive native support once the Arc mainnet launches, with future expansion to more blockchains. Circle also provides on-chain reserve verification through a public BTC reserve address and the Chainlink Proof of Reserve mechanism, allowing market participants to compare the scale of reserved BTC against the circulating supply of cirBTC across all supported chains.