A public key is cryptographic data related to a private key and can be used to derive or verify wallet information.
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Short definition
Public Key is a public key is cryptographic data related to a private key and can be used to derive or verify wallet information.
Simple explanation
Public keys can be shared more safely than private keys, but users still need to understand what information they reveal.
Why it matters
Public keys are part of how wallets verify signatures and generate addresses.
Example context
A wallet address can be derived from public key data depending on the blockchain design.