According to CoinMeta, the issuance volume of cirbtc, a Bitcoin-encapsulating product launched by Circle, has exceeded 5,000 units, representing a more than hundredfold increase from around 40 units in mid-August. This product is backed 1:1 by one native Bitcoin held by Circle National Trust and is verified through reserves proven by Chainlink. As of September 24th, the circulation of cirbtc was approximately 4,300.68 units, with reserves of about 4,448.19 BTC, resulting in a support ratio higher than 1:1.