Which digital ticketing innovation, first introduced in 2010, allowed performing arts venues to implement paperless entry using consumers' own devices?

The performing arts industry has embraced technology to enhance audience experiences both in venues and online. From virtual reality performances to interactive theater experiences, technology has transformed how audiences engage with performing arts. This poll tests your knowledge about a significant consumer product innovation that revolutionized ticket purchasing and access for performing arts venues worldwide.

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Mobile QR code tickets that could be stored in smartphone wallets
RFID wristbands that could be mailed to attendees before performances
Biometric facial recognition entry systems linked to customer accounts
NFC-enabled physical tickets that could be tapped for instant verification