1. USDT (Tether) is a stablecoin designed to maintain a 1:1 value with the US Dollar.

2. It was launched in 2014 and is one of the first and most widely used stablecoins.

3. USDT is issued on several blockchains, including Ethereum (ERC-20), Tron (TRC-20), and others.

4. Each USDT token is theoretically backed by one US Dollar or equivalent reserves.

5. It is mainly used for trading, reducing volatility, and transferring value in the crypto market.

6. USDT is issued by Tether Limited, a company affiliated with Bitfinex (under iFinex).

7. It offers high liquidity and is available on almost all major crypto exchanges.

8. USDT acts as a bridge between traditional fiat currencies and cryptocurrencies.

9. There has been controversy about whether Tether holds full reserves for all tokens in circulation.

10. Despite this, USDT remains the most used and trusted stablecoin in the crypto industry.