Anyone with the "Passion Ticket" can gain access into any stadium where their team is playing. It's like an episode of "Orphan Black" come to life.
Chipped fans must pass by specialty scanners set up at different gates around the stadiums. The microchip will contain all of the pertinent information that would typically be found on a printed or electronic ticket. Within two days of launching, there were 948 requests to be chipped. Hello, Big Brother.
See a video about the technology here, created by McCann Buenos Aires.