Circle Launches Regulated Custody for cirBTC Bitcoin DeFi
Circle National Trust, operating as First National Digital Currency Bank, N.A., has begun providing federally regulated custody for cirBTC, Circle’s Ethereum-based wrapped Bitcoin token. The Office of the Comptroller of the Currency granted final approval on July 10, 2026, and the bank opened on July 24.
The bank will hold native Bitcoin in segregated, bankruptcy-remote accounts. Each cirBTC token is designed to be backed 1:1 by BTC and redeemable for the underlying asset. Chainlink’s Proof of Reserve system will provide on-chain verification of the reserves.
Circle National Trust is a qualified custodian rather than a conventional commercial bank. It will not accept deposits or issue loans. The structure is intended to reduce counterparty risk and give Bitcoin holders access to Ethereum DeFi without selling their BTC.
Circle applied for the national trust charter in June 2025 and received conditional approval in December 2025. The company also holds a New York BitLicense and operates under the European Union’s MiCA framework. The launch positions cirBTC as a regulated alternative to established wrapped Bitcoin products such as WBTC, although users still face smart-contract, liquidity and custodial risks.
For traders, the development could support demand for cirBTC, Bitcoin-backed DeFi products and Ethereum-based lending markets. Its immediate price impact on BTC or ETH is likely limited, but wider adoption could improve institutional participation and Bitcoin’s utility across DeFi.
Bullish
The expected market impact is bullish, but likely modest in the short term. Circle National Trust adds a federally supervised custody structure to cirBTC, potentially addressing two long-standing concerns around wrapped Bitcoin: counterparty risk and reserve transparency. The 1:1 backing model, segregated accounts and Chainlink Proof of Reserve could improve confidence among institutions and DeFi users.
Similar regulatory and infrastructure developments in crypto have generally supported sentiment by reducing perceived operational risk, although they have not always produced an immediate token-price rally. In the near term, traders may focus on cirBTC minting and redemption activity, integrations with Ethereum DeFi protocols, liquidity and any premium or discount to BTC. Strong adoption could support demand for cirBTC and indirectly benefit ETH-based lending and trading markets.
The direct effect on BTC is likely limited because the service does not create new Bitcoin supply. However, broader use could increase Bitcoin’s utility and attract institutional capital over the long term. Risks remain, including smart-contract vulnerabilities, redemption bottlenecks, regulatory changes and continued reliance on a centralised custodian. As a result, the news is structurally positive rather than an immediate broad-market catalyst.