With the price of BTC dropping more than 6% overnight, CoinDesk's Markets Daily is back with your bitcoin news roundup.This episode is sponsored by Bitstamp and CiphertraceWhy Bitcoin Suddenly Dropped 6% on ThursdayThe week-long calm in the bitcoin market ended with a sudden $800 price drop on Thursday. Here's three likely reasons why.Quadriga Was a Ponzi Scheme, Ontario Securities Regulator SaysThe Ontario Securities Commission has published a scathing report calling now-defunct Canadian exchange QuadrigaCX a "Ponzi," and denouncing the practices of founder and CEO Gerald Cotten.Unstoppable Domains Taps IPFS for Censorship-Resistant Blogging PlatformDecentralized blogging is coming to a .crypto URL near you thanks to a partnership between Unstoppable Domains and Protocol Labs.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.