This is effectively the system used by the popular festivals in the UK, particularly Glastonbury. You need to pre-register for tickets, which involves uploading

This is effectively the system used by the popular festivals in the UK, particularly Glastonbury. You need to pre-register for tickets, which involves uploading photos. When it goes on sale, only pre-registered users can buy, and the photos are checked on entry. Other festivals do the simpler thing of checking the names on the booking against ID. Many allow a secondary market in tickets, but only at or below face value for those who are unable to go. This shows what can be done if they really do want to stop scalpers.