Learn about designing fair protocols using Bitcoin in this 21-minute conference talk from Crypto 2014. Explore concepts like fair exchange, Bitcoin's role in protocol design, and secure computation with penalties. Discover the "Claim-or-Refund" functionality and its implementation in Bitcoin, as well as the "Ladder" protocol for fair reconstruction. Gain insights into the minimal model approach and potential future directions in this field presented by Ranjit Kumaresan and Iddo Bentov.