QuarkChain (QKC) 17 September 2018 Big News Announcementcoinmarketcal (66)in #cryptocurrency • 6 years ago QuarkChain (QKC) 17 September 2018 Big News Announcement There will be a "big" news announcement by Quarkchain on Sept 17th, 2018. https://twitter.com/Quark_Chain/status/1040978627121369088 #news #blockchain #crypto #bitcoin