How does the winner selection process look like?

A two-round draw takes place. In the 1st round, all valid Winvitation codes are imported into an open-source drawing software which randomly selects 200 codes for the 2nd round pot. The 2nd round is a public drawing which can be watched HERE. Starting from the previously selected 200 codes, the Software randomly removes 1 code every 10 seconds. The Winner is the owner of the last code after the other 199 codes have been removed.