Which innovative technology did major film studios adopt in 2017 to allow viewers to purchase digital movies across multiple platforms with a single purchase?

The film and television industry has undergone massive technological transformation in recent years, particularly in how content reaches consumers. Streaming platforms have revolutionized distribution models through sophisticated product innovation and retail technology advancements. This trivia question explores a groundbreaking technology that changed how studios approach digital content distribution and protection.

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Movies Anywhere (digital locker service)
Ultraviolet (discontinued digital rights authentication system)
FilmChain (blockchain-based rights management)
Digital Cinema Package (DCP) Home Edition