I was thinking of offering a contest on my Youtube (https://www.youtube.com/howtwos101) or on my website, but was worried of not getting many people involved because they think it's a scam (never paying out, or I just give the prize to one of my buddies or something).
Is there a blockchain option to prove the prize goes to a randomly selected person who signs up for the contest? Seems like it would be possible with a smart contract.
