How a wallet proves it is you
A crypto wallet does not prove your identity with a password. It proves control with a digital signature.
This is an important shift. A blockchain does not need a private password database. Instead, it checks public cryptographic proof.
Your wallet keeps the secret. The network checks the signature.
Private key, public key, and address
The private key is the sensitive part. It should stay secret forever.
From that key, wallet software can derive a public key and an address. Other people can know the address safely.
When you send crypto, your wallet signs the action. The signature proves that the private key approved it.
Why the password comparison is misleading
A normal app stores account access on a company server. If you forget your password, the company can often reset it.
A crypto wallet is different. If you lose the recovery phrase, there may be no reset button.
Therefore, self-custody gives control, but it also creates responsibility.
What a signature protects
A signature lets the network check permission. It also protects the private key from being revealed.
That means a wallet can approve a transaction without sending its secret to the blockchain.
The takeaway
A crypto wallet proves control, not identity. The private key signs. The public network verifies. Then the blockchain updates the state.
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