On 3 July 2013 22:11, Alex Smith <[email protected]> wrote: > I think ehird's suggestion works, though; you could promise "I perform > the specified action with the sha-1 hash <long hex string here>". For > bonus points, you could even transfer it to the Tree, leaving it unclear > who you'd made the promise to.
I think encryption where you reveal the private key is better. There are presumably an infinite number of actions with any given SHA-1 hash (or at least we can't rule that out).
