Extended completes migration from Starknet to Circle’s Arc

Decentralized perpetual futures exchange Extended has completed its migration from Starknet to Circle’s layer-one blockchain Arc, Crypto Briefing reported. Existing users’ open positions and orders were maintained through the move, allowing trading to continue without requiring users to close or reset positions. On Arc, however, supported collateral assets have changed to USDC and cirBTC. USDC will serve as the primary collateral asset, while cirBTC will be used as Bitcoin collateral. cirBTC is a token issued by Circle and is pegged one-to-one with BTC.