Quote from: Quantumplation on July 22, 2010, 01:19:13 PM

Quote from: D҉ataWraith on July 22, 2010, 07:13:24 AM

I would do the drawing as follows:

Go to random.org and generate the random number(s) between 0 and n based on a "persistent identifier". A good identifier to use would be a newly generated bitcoin address that has not been used yet.
Post the SHA-256 hash of the identifier on the forum to commit to the number(s)
Publish the guesses. This way, people can see if all guesses have been exhausted. This prevents me from claiming no-one won.
Announce the winner and publish the identifier used to generate the number(s), so everyone can verify the winning number(s).

This is a very good solution. I was looking around on random.org, but I hadn't thought it all the way through. Would you be interested in buying into a lottery like this? It's interesting, because it doesn't reward buying a bunch of guesses at once (each one gives diminishing returns, because you're putting more money into the pot) and the longer it goes on (maybe capped to a week, and whoever's closest after a week wins) the more profitable it would be, because there'd be less choices, thus more chances for winning. It's almost like a Bingo lottery. =P

Looks very cool!

Maybe we can test out the coin flip?