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A public key is the public half of the public/private keypair. Anyone can use a public key check that a signature is correct, but they can't generate the signature themselves with the public key.

8 votes

Does the private key of Bitcoin change everytime the address changes?

If you are posting different questions I suggest, posting them up in different threads. But I'll try to answer all of them. 1) It doesn't work like that. Every address is a pair (private key, public …
galileopy's user avatar
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