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Most people don't know what a private key is, but they are one of the most powerful technologies that we all use every day. If you hold bitcoin or other crypto 😂, there's a decent chance you have a vague idea of what a private key is but haven't thought much about why private key technology is so important.
Private keys have three fundamental superpowers. I like to call them by the incredibly catchy name "The Three U's."
Private keys are:
  • Unique
  • Unguessable
  • Unforgeable
Here's what that means.