In the context of unofficial film databases or "wikipads," a tag typically refers to specific technical standards rather than legal authorization. These standards ensure that a file is not a "fake" upscale but a true 4K source.
If you are looking for high-quality, verified 4K movies, it is recommended to use established services: srkwikipad 4k movies verified
Download "DRM Info" from the Play Store. If it shows L1, you can stream 4K. If L3, you are limited to SD. "verified" In the context of unofficial film databases
Automated metadata scan