Better idea, make a script that can spin up Azure instances and mine Bitcoins on them. Then build a web app on top of it that will liquidate Azure credits to cash as a service. When someone dumps their credentials into your site you spin up $500,000 of computing power on Azure to mine Bitcoins from and then liquidate the Bitcoins you mine into cash and take like 15% off the top.

I'm not sure what the conversion rate of Azure computing dollar to mined Bitcoin would be, but this would work to some extent with $500,000 wouldn't it? What YC company wouldn't want a Azure -> cash liquidation web app.