Coinbase, a Bitcoin Start-Up, Raises $75 Million in Vote of Confidence. Bitcoin (Currency), Venture Capital, Andreessen, Marc L, Ehrsam, Fred, Pandit, Vikram S, Schuler, Barry, Andreessen Horowitz, Banco Bilbao Vizcaya Argentaria SA, Coinbase Inc, New York Stock Exchange, Union Square Ventures, USAA Group