Windows – How to prove the authenticity of a screenshot

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I have take some screenshots of chat from Whatsapp web using Windows 8 Snipping Tool. I saved those images in PNG format.

Now I want to prove that those images are the original, not tampered or edited.

Can you please let me know how can I prove that?

Best Answer

You cannot prove that. They were on your PC, fully under your control for some time. You could have tampered with them. Therefore you cannot prove that you did not tamper with them.

If you need to set up a legally safe solution then look for an independent third party and a way to have them store information in such a way that you can only trigger a store or read (e.g., a screenshot on a Citrix server to a write-once location).