# Introduction to USDT multi-network

Summary: USDT is Tether USD (referred to as USDT), a token based on the stable value currency U.S. dollar (USD) launched by Tether. It guarantees that the value of 1 USDT = 1 U.S. dollar remains unchanged. Users can use USDT and USD for 1:1 exchange at any time.

So far, USDT has been issued on three public chains, namely **Omni-USDT**, **ERC-USDT** based on Ethereum, and **TRC-USDT** based on Tron.

**The first type:** USDT-Omni is USDT issued by Tether based on the BTC network. Deposits and withdrawals are through the BTC network. The protocol used by USDT-Omni is the omni layer protocol built on the BTC blockchain network. **(Note: Your BTC deposit address on CoinHome is different from the USDT deposit address. If the deposit address is wrong, your funds will not be able to arrive)**

**Block explorer:**

{% embed url="<https://omniexplorer.info/asset/31>" %}

**The second type:** USDT-ERC20 is USDT issued by Tether based on the ETH network. Deposits and withdrawals are made through the ETH network. USDT-ERC20 uses the ERC20 protocol. **(Your ETH deposit address on CoinHome is consistent with the ERC20-USDT deposit address)**

**Contract address:**

{% embed url="<https://etherscan.io/address/0xdac17f958d2ee523a2206206994597c13d831ec7>" %}

**The third type:** USDT-TRC20 (USDT-TRON) is USDT issued by Tether based on the TRON network. Deposits and withdrawals are made through the TRON network. USDT-TRC20 (USDT-TRON) uses the TRC20 protocol. **(There is no handling fee for withdrawing coins) (Your TRX deposit address on CoinHome is consistent with the TRC20-USDT deposit address)**

**Token contract:**

{% embed url="<https://tronscan.org/#/contract/TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t/code>" %}