Northwestern University’s Blockchain Group — Authors: Sung Lee, Gilberto Guadiana, Hanhee Yang, Alex Betts, Amogh Bharadwaj, Josh Lee, Lauren Huttner, Ajay Dave Introduction Prerequisites For this article, basic familiarity with blockchain concepts is required. See the terms sheet in the Appendix for reference. It may also be useful to have a high level understanding of the Ethereum blockchain protocol.