What are the private key, public key, and address in a wallet used for?
First, what they are: A digital signature can prove that the person initiating a transaction has the private key, but the signing process does not reveal the private key.
The logic behind it: There is no central authority that can reset your private key for you. The blockchain only recognizes valid signatures, and anyone who gets your private key can transfer the assets at the corresponding address.
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Don’t trade with borrowed money—the pressure can lead you to make bad decisions.