Several financial institutions s such as JP Morgan and Credit Suisse revealed some of their blockchain-related activities this week.
OKCoin (okcoin.com & okcoin.cn) was launched in 2013 as a cryptocurrency exchange in China.
Ethereum is under attack, and Bitcoin investor Roger Ver sues exchange OKCoin.
Hasheer (hasheer.com) was launched in June 2016 and provides cloud mining services from Finland.
Bitmain is launching a second Bitcoin mining pool, and Ripple has raised $55 million.