The Schnorr-based multi-signature scheme MuSig, a test code for a potential upgrade to the Bitcoin (BTC) blockchain, has been released by blockchain tech firm Blockstream, according to an announcement published on Feb. 18.
Last January, four Bitcoin developers released a paper outlining how Schnorr multi-signatures (‘multisig’) could help scale the Bitcoin blockchain, saying that the technology could reduce its transaction size and “improve both performance and user privacy in Bitcoin”. In the paper, the developers state that MuSig is designed as “a protocol that allows a group of signers to produce a short, joint signature on a common message.”