@misc{cryptoeprint:2019:857, author = {Karl Wüst and Loris Diana and Kari Kostiainen and Ghassan Karame and Sinisa Matetic and Srdjan Capkun}, title = {Bitcontracts: Adding Expressive Smart Contracts to Legacy Cryptocurrencies}, howpublished = {Cryptology ePrint Archive, Report 2019/857}, year = {2019}, url = {https://eprint.iacr.org/2019/857}, }