Public Key
The shareable half of a cryptographic key pair, from which your wallet address is derived — safe to publish.
A public key is the openly-shareable counterpart to your private key. Through one-way cryptography, the private key generates the public key, and the public key generates your address — but the process can’t be reversed, so publishing your address or public key never endangers your funds.
This asymmetry is the foundation of crypto security: you prove ownership by signing with the private key, and anyone can verify the signature using the public key, without the private key ever being revealed. Understanding the one-way chain (private key → public key → address) clarifies why sharing an address to receive funds is completely safe while sharing a private key or seed phrase is catastrophic.