Cardano founder Charles Hoskinson launched the first Bitcoin DeFi protocol Cardinal on Cardano. The protocol uses MuSig2 multi-signature technology implementation of non-custodial cross-chain, allowing users to directly use Bitcoin UTXO to participate in Cardano chain lending and staking operations, while compatible with Ordinals inscriptions as collateral. The technical solution includes BitVMX off-chain verification system and supports interaction with public blockchains such as Ethereum and Solana.
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