Bitcoin startup Coinbase is seeking to raise another round of funding, which could add $50 million in new capital before it’s finished. According to sources, the company has faced headwinds in the fundraising process. Sources tell us Coinbase is raising $50 million of new capital less than a year after its last financing, a $25 million Series B led by Andreessen Horowitz. That’s a pretty big jump in a short period of time, and would once again make Coinbase the best-capitalized Bitcoin startup after recent $30 million funding rounds for BlockChain and BitPay. That said, one source tells us Coinbase started initially seeking to raise up to $150 million. So what happened? Our sources say Coinbase has faced headwinds due to regulatory overhang in the U.S., as well as questions about the volatility.

http://techcrunch.com/2014/11/14/coinbase-desparately-seeking-series-c/