Bitcoin (Bitcoin, BTC) is a cryptocurrency based on district centralization and using blockchain as the underlying technology. Anyone can participate in Bitcoin-related activities. Not only can it be issued through the calculation of "mining" computers, Bitcoin and cash are similar in function, allowing direct personal payment without going through third-party institutions such as banks and payment platforms; USDT (Tether USD) is a cryptocurrency asset issued on the Bitcoin blockchain. Each USDT unit is backed by U.S. dollars in Tether Limited reserves and can be redeemed through the Tether platform. It can be simply understood that the value of 1 USDT is equal to 1 US dollar.