Concept comparison

Public Key vs Address

A public key verifies signatures; an address is a shorter receiving identifier derived from key material.

Dimension

Public Key

Address

Purpose

Lets the network verify that a signature came from the private key holder.

Gives users a compact destination for receiving funds.

Takeaway: Verification and receiving identifiers are related but not identical.

Derivation

Computed from the private key by one-way elliptic curve math.

Usually derived by hashing and encoding public-key material.

Takeaway: Addresses add usability and a checksum layer on top of keys.

Exposure

Often revealed when spending from an address.

Can receive funds before the public key is revealed on-chain.

Takeaway: Address reuse can leak more linkage and metadata than beginners expect.

Recovery

Recoverable from the seed/private key.

Recoverable by deriving wallet keys and address paths again.

Takeaway: The seed phrase is the thing to protect, not a single address string.

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