ChainCatcher news, the DeFi derivatives protocol Antimatter announced its rebranding to Bitune, focusing on producing BTC ecosystem products. Bitune has launched its first product after the transformation, BitSig, which is an innovative Bitcoin-native multi-signature custody solution with EVM cross-chain communication capabilities.According to RootData, on February 20, 2021, Bitune completed a $1.5 million seed round financing and went live on the mainnet on April 9, 2021.