How to Sign Message with an Address to prove ownership
1. Open your Qt wallet and copy the address you want to sign the message with
- To find an address quickly, use coin control feature: http://solaris.helpsite.com/articles/24860-coin-control-options
- Right click with you mouse on the desired address and hit copy
2. Click File>Sign Message...
3. In the sign message window, paste the address into the first field, then enter the message you want to sign and hit the Sign Message button.
4. A Signature will be generated. Hit the Copy button to the right of the field to copy the signature.