Quote from: W-M on July 11, 2014, 09:55:16 AM

You can prove that you're the owner of a certain address by signing a message with that address.

Others can verify if this is correct in their own Bitcoin wallet.

Indeed this is one of the best method to prove that you own some Bitcoin address.

on other hand you can send to someone small amount of bitcoin (0.00001 for example) to prove him that you are in a control of that address.

Quote from: binaryFate on July 11, 2014, 10:20:37 AM

Quote from: killakem on July 11, 2014, 09:39:25 AM

Hi Guys,

I'm starting a coin that requires me to prove my BTC balance. Any ideas on how to do this with out risking my privacy.

Screenshots wont do as they can be modified easily.

Regards
killa

You're "starting a coin" but you don't know how to prove a bitcoin balance. Seriously.

Well this is interesting indeed =)