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Cake day: Aug 10, 2023

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it would, but the act of giving a dollar doesn’t double as a way to validate transactions


A guess/suggestion:

You have an app with a private key. The qr code contains data encrypted with the corresponding public key. Your app decrypts the data and transmits it to googles servers, proving you are in possession of the secret key.


you have at your disposal all the tools you need to learn the answer to that question within a minute



a HDD can fail at any given time. It could fail within a week of buying it, could last over a decade.

What I’m saying is, if you have data you don’t want to lose, yes you should be worried. Keeping backups is the only safe option.