I found there are different currencies options for a sovereign CDS when downloading via Eikon. For instance, the US government 5Y CDS, i.e., USGV5Y**AC=R with ** stand for the currency. This CDS can be quoted by USD, GBP or EUR. But what does it mean with quoted by different currencies, and what are exactly the difference between the CDS quoted by different currency? Do they based on the same underlying? Or are they actually issued in different markets so that the key parameters, such as underlying, zero rates or payments, could also be different (w.r.t. currency)?