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by zAy0LfpBZLC8mAC 3207 days ago
Checking the possession of a picture is not biometry (that would be possession-of-a-picture-metry). Making a picture is biometry (measuring the body, essentially).

The hard problem with biometry is proving to a third party that a certain identity is responsible for a contract, but identification with biometry (convincing yourself that the person before you is the same person that you enrolled earlier) at least works a lot better than asking for essentially public information.