Ticketmaster is one of the nation's premiere vendors for live entertainment events. Many people prefer to buy tickets from Ticketmaster.com directly in order to ensure they're legitimate; however, if you're selling Ticketmaster tickets to someone else, there are a few ways to prove that they're valid. Laws differ from state to state regarding who can legally sell tickets, so you'll want to start by making sure that you're within the parameters of the law before you set out to sell your tickets.
Use Ticketmaster's website to look up the seat numbers on the tickets to see whether or not they've been purchased. If they have, you are one step closer to proving that the tickets are legitimate.
Check an event website or schedule to see if the time and date on the tickets corresponds to the actual show. It's important to pay close attention to these details.
Trace the history of the ticket by furnishing receipts. If the tickets are from Ticketmaster, the receipt and confirmation will say so. If no history of the tickets can be furnished, this might be a sign that the tickets were stolen, counterfeited or previously used.