Wednesday, September 30: Checkup 2 revisions (if desired), due at the beginning of class.

Friday, October 9: Problem Set 2 (moved from original deadline of October 2). Problem Set 2 will be posted later.

Monday, October 19: Midterm Exam

Checkup 2

Checkup 2 (PDF)

Note: ink markings may not appear in the embedded viewer. To see them, download the slides.


Why would a hypothetical cryptocurrency without miners not work? What is the essential service rendered by a miner?

How does Bitcoin handle forks? What criteria does it use to decide the branch to converge on?

What is a Nash Equilibrium in a game? What is the equilibrium strategy in a game of rock-paper-scissors?

What would happen to the bitcoin currency if everyone started mining selfishly?

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