The Digital Currency Initiative is a group at MIT focusing on cryptocurrency and its underlying technologies. Cryptocurrencies like Bitcoin enable open, trustless digital payments and contracts. In the spirit of the Internet's wide reach, this technology, and the people behind it, have the potential to impact billions of people and become a crucial part of daily life. We seek to push the envelope on the development of this technology with fundamental research, while shedding light on the associated benefits, risks, and ethical quandaries. Beyond research centered at MIT, we also help support open-source cryptocurrency communities and diversity, and hope to foster a broader academic community in this space.