That's an oxymoron. There really isn't any working cryptocurrency able to be used like fiat money out of pocket or even at starbucks POS. Remember crypto currency was created to hide from the governments and agencies and to avoid all taxes. In 11 years crypto hasn't worked. Well, except for the cottage industries created to sell the concept or mine coins. Otherwise, no one on the street can use bitcoin or any other crypto in a normal time frame.
And blockchain in different forms has been around since computers were invented. They don't belong in the same sentence but promoters merge them all the time to confuse people.
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