What does "com.apple.photos.originating.signature" tag means?

I am examining a .MOV file that has a creation date different from an encoding date. It is questioned if the file has been edited. And it has this tag on its metadada:


com.apple.photos.originating.signature


I ran some tests with my phone and found out that when I export a .MOV file to my PC "as is" this tag does not show and the creation date is the same as the encoding date.


But when I send the file through Apple´s Mail app the file shows a different encoding date and the "com.apple.photos.originating.signature" tag.


Does anyone know if this tag is related to the file being shared in some way?


The complete information retrieved via MediaInfo is attached.


Thank you



Posted on Jun 20, 2023 8:03 AM

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What does "com.apple.photos.originating.signature" tag means?

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