This is a little known stable currency linked to the dollar 1 to 1, its main market is directed at Okex since it has more than 54% of the market traded daily, in general with good liquidity.
It has a special custody fund for each token, since 1 USD is available at any time by the American trust company Prime Trust.
In general, this asset complies with the functionality of avoiding the big falls of bitcoin and other cryptocurrencies, it stands out due to its issuer in addition to its backup fund.