Spending digital currency without owning digital currency may be facilitated. The user may use a software application running on the user's computing platform to scan a digital currency public address quick-response code (QR), or a near-field-communication (NFC) based public address. The user may be prompted to swipe-to-authenticate the transaction. The user may authenticate the transaction by fingerprint-swiping a biometric-enabled transitory password authentication device. The biometric-enabled transitory password authentication device may transmit an encrypted transitory password a server via the user's computing platform. Upon receiving and verifying the transaction, the server may send an amount of digital currency to the target address on behalf of the user. The server may charge the user's debit card an equivalent amount of sovereign currency.