Tether (USDT) is a stablecoin that was initially created on the Bitcoin blockchain as an alternative to traditional cryptocurrencies that are known for their high volatility. Later, Tether was also issued on the Ethereum blockchain as an ERC-20 token. Tether ERC-20 is a popular cryptocurrency that is designed to maintain a stable value of $1 per token, making it an attractive option for traders who want to move funds between different exchanges without having to worry about price fluctuations.

Tether ERC-20 is pegged to the US dollar, meaning that for every Tether ERC-20 token issued, there is an equivalent amount of US dollars held in reserve. This ensures that the value of Tether ERC-20 remains stable and predictable, as there is always a direct link between the token and the US dollar.

The advantages of Tether ERC-20 include its stability and its usefulness as a trading pair on many cryptocurrency exchanges. Traders can use Tether ERC-20 to buy and sell other cryptocurrencies, and its stable value means that it can be used as a safe haven during times of market volatility.

One of the main criticisms of Tether ERC-20 is the lack of transparency regarding the reserve of US dollars backing the tokens. While Tether claims to hold reserves equal to the number of tokens issued, the company has been accused of not being transparent enough about how it holds these reserves.

Despite the controversy surrounding Tether ERC-20, it remains a popular cryptocurrency among traders and investors who are looking for a stable asset to park their funds during times of market turbulence.