Loopring (a Gamestop unconfirmed partner) has this patent for digital asset transactions:
G06Q40/04 - Exchange, e.g. stocks, commodities, derivatives or currency exchange
Subject matter including the trading or exchange of securities or commodities within an organised system.
Data processing systems or processes specially adapted for trading in the context of stock, FX exchanges, e.g. trading of stocks and currency exchange.
The following subjects are therefore covered, the list being non-exhaustive:
Stock exchange applications, e.g. Trading stock, options, ordering of stock, general stock trading administration
Foreign exchange, e.g. currency trading and currency exchange
Loopring (a Gamestop unconfirmed partner) has this patent for digital asset transactions: