GUTS have an already working product.
https://bitcointalk.org/index.php?topic=2111306.0From the first post:
GUTS is a ticketing platform which uses blockchain technology to register ownership of smart tickets by doing so GUTS makes ticket fraud impossible. The purchased smart tickets can only be resold within a fixed price range, this means no more disgraceful prices for (secondary) tickets.
GUTS is live
GUTS Tickets has a live smart ticketing application with paying event organizers in the Netherlands ticketing with the application. With the proof-of-concept and practical market experience of developing and operating a ticketing company the GET-protocol described in our white paper was designed. The protocol will allow all event-organizers and venue holders to securely add smart ticket attributes to their tickets without having knowledge of crypto or smart contracts. During the ICO period the protocols own ERC20 token, the GET, will be up for sale. In the white paper more information about the GET token and the protocols GET buy-back guarantee can be found.
I can confirm that one mayor Dutch ticket company has recently partnered with them.
https://blog.guts.tickets/the-hekwerk-deal-7554071b26c1