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Not quite trivial: people can crop, skew, vignette, mirror, timestretch and scale video to try to defeat it. YouTube's Content ID seems to be vulnerable to this

Not quite trivial: people can crop, skew, vignette, mirror, timestretch and scale video to try to defeat it. YouTube's Content ID seems to be vulnerable to this sort of thing still.

x0x0 11y ago
I think that's why many of these systems focus on audio. It's harder to change in a way that beats fingerprinting but doesn't ruin the viewing experience.
izelpii 11y ago
I think the majority of the cases are uploaders that basically post the same content.