An escrowed bet of 10 BTC will be sufficient
Now you act like CfB from the IOTA scam. If you ask that man what time is it now or in fact ask any questions such as does a bear shit in the woods or anything really which has a question mark, CfB will offer you a 50 BTC bet to deal with the question ... since he knows nobody gives a monkey about the betting offer of a scammer.
Isn't the interest of your investors to know who the fuck you are? Why you need to complicate the simple question of who you are with a fucking 10 BTC bet? The TPTB_need_war ICO starts as he finished here: fishy and messy.