<p><strong>Public Key</strong> is a cryptographic key pair used in cryptocurrency to receive funds. It is derived from a user's <a href="/NewSite/encyclopedia/private-key/" class="ency-link">private key</a> and serves as the public address where transactions can be sent.</p>
<p>Public keys are crucial in cryptocurrency transactions as they ensure that funds are sent to the correct recipient. For instance, when you want to receive Bitcoin, you share your Bitcoin public key (or address) with the sender. This way, you maintain control over your funds while allowing others to send you cryptocurrency.</p>