The USSA is quickly developing it's own crypto currency to ultimately replace the dollar and more to a cashless society. They say they are modeling this new digital currency on Bitcoin/Blockchain technology but it appears that this new currency will be able to tracked, monitored and controlled; unlike Bitcoin.
The new money is being called FEDCOIN and I believe will have a tag of CBDC = Central Bank Digital Currency.
Here is an article to get you started, but feel free to do you own research. Just look up FEDCOIN for starters!