Prereq: Permission of instructor. Project-based course designed to involve students in the latest thinking and developments as companies attempt to integrate blockchain technology into viable business models. With faculty guidance, students form teams of 3-5 people and work with the Media Lab's Digital Currency Initiative (DCI) member companies on hand-picked projects. Course is a partnership among the DCI, MIT Sloan, and leading, global, forward-looking companies across various industries. Teaching team provides mentorship and overall structure for learning, but students are responsible for running the projects in a detailed and effective manner. Enrollment by application; preference to graduate students and undergraduates with strong technical preparation.