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Crypto
Public Key
A shareable address on the blockchain where people can send you cryptocurrency safely.
Your public key is safe to share anywhere. It lets the blockchain know where to send coins, but no one can take your money just from knowing it. Wallets usually show it as a long string of letters and numbers or a QR code. It's how the whole system stays open and verifiable.It's like your public email address — anyone can send you messages there, but only you can open them with your private password.
Real world: You give your public key (or wallet address) to a friend so they can send you Bitcoin or Ethereum without ever seeing your secret key.
💡 Share your public key freely when receiving payments, but guard your private key like your life depends on it — because in crypto, it does.