![]() ![]() We’ll show you how to take a screen capture of the whole MacBook-Screen, of a section of the screen and a single window or other screen components. Unfortunately that doesn't verify creation timestamp of anything adjacent to the timestamp derived data, just that data, and its output.If you’d like to take a screenshot on Mac you’ll just need to know simple key combinations. If you can make some part of your data directly derivitive from arbitrary input (like a hash being derivative from arbitrary input) that can verify that the output was generated after a point in time as described in #2 above.(Followup question) What part of my data can I prove was generated after a given point in time? Now you have proof that a 3 week old image was taken today, causing a contradiction to our premise.Capture the current screenshot, with the assumed verification technology we used as a premise for this proof.Now open it, fullscreen, in an image viewer.( Optionally edit it in any program of your choice.Take one of these timestamp verified, modification apparent screenshots from 3 weeks ago. ![]() ![]()
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