In the crypto world, public keys and private keys are like a pair of twin brothers, each with their own responsibilities.

Simply put: **Public key is like your bank account number**, which can be shared freely with others. Others can transfer assets to you using your public key, just like making a deposit into your account. But there's a key difference—public keys are processed with encryption technology, so no one can see the true identity of the account owner.

**The private key is the real secret weapon**. It is not only your account identifier but also the proof of absolute ownership. Once the private key is leaked, your assets are completely exposed. Therefore, it must be treated with the same strictness as protecting a password.

The underlying principle uses asymmetric encryption technology—information encrypted with the public key can only be decrypted with the corresponding private key, and vice versa. This mechanism ensures transaction security and the uniqueness of ownership.

That's why on mainstream blockchains like BTC, ETH, SOL, safeguarding your private key is equivalent to safeguarding all your assets. Once lost, no one can help you recover them.