Tether, also known as USDT, is a controversial cryptocurrency issued by Tether Limited, which is controlled by the owners of Bitfinex. USDT is a stablecoin. Issued in 2014, this coin is based on a blockchain-based platform that facilitates the use of fiat currencies through digital means. (1) What is brick arbitrage The difference between the price and the withdrawal fee is your profit. (2) The principle of brick arbitrage ①The usual way of operation is to buy a large amount of USDT coins wit...