Bitcoin wallet and data analytics provider Blockchain raised a little over $30 million from venture capital investors, the biggest single funding round yet for a digital-currency firm and a sign that Silicon Valley remains excited about bitcoin’s prospects even as its price has fallen far from its highs of last year.

The investment was led by Lightspeed Venture Partners and Wicklow Capital, with contributions from others, including Virgin Group Chairman Richard Branson and Mosaic Ventures.

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