A dj known as Gramatik was the first to do it and he used tokit as well... and there's been some other musicians since. We are the first american artist/band to do so and the first psychedelic band. We definitely were the first band to put a bitcoin qr code on a release though when we released "Myceliated" in 2015 which is essentially about decentralization and psychedelics. We are trying to start a Crypto-psychedelic revolution.

Edit: Just realized I'm commenting on my personal steemit account instead of the band account... but oh well lol. I'm the founder of the project.