If you use your phone to manage crypto, where is your transaction actually signed?

With United Network, the answer is: on your NFC card.

How does it work?

When you make a transaction, your phone is the interface — but the cryptographic signing happens on the card’s secure chip.

Tap your card → enter your PIN → sign the transaction.

Your private key stays inside the card and never needs to be exposed to your phone.

Why does this matter?

Keeping the key and the interface separate means your phone can be used to manage your assets without becoming the place where your private key lives.

One tap. One card. Hardware-level signing

Get card wallet | X(Twitter) | Medium