Hitbtc Exchange is one of the oldest exchanges and in my opinion it is one of the highest quality. Each currency in this exchange has two parts, one related to transactions and the other related to hold account.
There are two differences between these two sections, when your money is in the trading account, you can not withdraw it, and also if it is in the main account, you will not see that asset in the exchange section.
There are a lot of pairs in hitbtc and also the fees are lower compared to some other exchanges I know.
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