Citibank said in its latest report that stablecoins not only have the potential to solidify the dominance of the U.S. dollar, but also challenge the claim that bitcoin will one day end its dominance. "Initially, cryptocurrencies such as Bitcoin were seen as competitors to central bank-issued currencies. In fact, some believed - and still believe - that Bitcoin could end the hegemony of the US dollar. However, USDT is challenging that claim....