Coincidentally: https://techcrunch.com/2017/04/26/spotify-acquires-blockchain-startup-mediachain-to-solve-musics-attribution-problem/ https://techcrunch.com/201

Coincidentally: https://techcrunch.com/2017/04/26/spotify-acquires-blockchain-startup-mediachain-to-solve-musics-attribution-problem/ https://techcrunch.com/2017/04/26/spotify-acquires-blockchai... But I know there are a few other startups trying to do the same thing.