Public Key
A public key is a value in asymmetric public-key cryptography (PKC) that can be shared openly and is paired with a private key. It is used to verify digital signatures or to encrypt data that only the private key can decrypt.
Example: In a cryptocurrency network, a recipient shares their public key (or a derived address) to receive funds; the sender signs the transaction with their private key and others verify the signature using the recipient's public key.
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