在充提USDT的时候，投资者发现有3个不同的链类型供选择，分别是ERC20、TRC20和Omni，而大多数投资者就卡在这里了，在三者之间不知道该如何选择，甚至都不了解这三者是什么，简单点说ERC20是以太坊区块链的链类型，TRC20是波场区块链的链类型，而Omni是比特币区块链网络的链类型。
When referring to USDT, investors found that there were three different chain types for choice, namely, ERC20, TRC20 and Omni, and that most investors were stuck here, and that they did not know how to choose between them, or even what they were, and simply said that ERC20 was the type of chain in the Terai sector chain, whereas TRC20 was the type of chain in the wave zone chain, while Omni was the type of chain in the Bitcoin sector network.
USDT是当前实用最广泛，市值最高的稳定币，它是中心化的公司Tether发行的。在今年的4月17日之前，市场上存在着2种不同类型的USDT。4月17日又多了一种波场TRC20协议发行的USDT，它们各自有什么区别呢?哪个转账最快到账？哪种最安全？手续费最低？
The USDT is currently the most practical and marketable stabilizer, issued by a central company, Tether. By April 17 this year, there were two different types of USDTs in the market. On April 17, there was another USDT issued by a wave-place TRC20 agreement. What difference does it make?
USDT充币提币ERC20、TRC20、Omni如何选择？
How do you choose
除了地址不同之外，选择不同的链类型，转转账的速度和手续费也是不一样的。如果你希望可以快速转账，追求的是速度，那就应该选择波场区块链的TRC20链类型。波场网络TPS达到1500TPS，目前来说转账最快到账的是波场USDT。
In addition to different addresses, different types of chains are selected, and the speed of transfers and fees are different. If you want to be able to transfer quickly, and you want to pursue speed, you should choose the type of TRAC20 chain in the chain of the wave zone. The wave network TPS reaches 1,500 TPS.
如果你在意的是手续费，希望转账手续费能低一些，那也应该选择TRC20链类型。因为TRC20链类型转账，手续费为0。而ERC20链类型的手续费是1USDT，大概是7块钱。OMIN链类型手续费最贵，需要5个USDT，大概是35人民币。
If you care about the fees, if you want to transfer them lower, then you should also choose the type of TRAC20 chain. Because of the type of TRAC20 chain transfer, the fee is zero. The cost is 1 USDT for the type of ORC20 chain, roughly $7. The most expensive is the type of OMIN chain, which requires five USDTs, roughly 35 yuan.
但是如果你希望转账能安全一点，那就选择比特币网络的OMIN链类型，这个链类型虽然手续费高了一点，但是安全性好。贵，也是有道理的嘛。
But if you want the transfer to be safe, then choose the type of OMIN chain on the Bitcoin network, which is a little more expensive, but it's safe. It's expensive, it makes sense.
USDT充币提币ERC20、TRC20、Omni有啥区别？
What's the difference between ERC20, TRAC20 and Omni?
1、Omni-USDT的安全性最好，但转账速度太慢。要是你有不着急交易的大额订单，可以优先选择Omni-USDT。
One, Omni-USDT is best secure, but transfers are too slow. If you have large orders that do not rush, you can give priority to Omni-USDT.
2014年，USDT于比特币网络上诞生，于2015年2月正式上线几大主流交易所。在2018年之前，USDT的转账路径只有一条，那就是基于比特币网络的Omni-USDT。Omni-USDT存储在比特币地址上，因此每次转账的时候，需要支付比特币作为矿工手续费。Omni-USDT于比特币网络的链上，黑客攻击的成本很高，所以资产相对安全性较高。但是其交易速度非常慢，已经无法满足当今加密交易市场的需求，但很多大宗交易还是会倾向于Omni-USDT。
In 2014, the USDT was born on the Bitcoin network and officially launched several major mainstream exchanges in February 2015. By 2018, the USDT had only one route to transfer, which is Omni-USDT, based on the Bitcoin network. Omni-USDT was stored at the Bitcoin address, so that at each time it was transferred, Bitcoin would have to be paid as a fee for miners. Omni-USDT was in the Bitcoin network with a high cost of hacking, so assets were relatively secure.
2、ERC20-USDT的安全性和转账速度居中。适用于数字货币市场的频繁交易。要是你经常做短线交易，可以优先选择ERC20-USDT。
2 ERC20-USDT’s security and speed of transfer are in the middle.
2018年，以太坊网络开始流行，在区块链应用也大面积展开，ERC20-USDT出现。和Omni-USDT一样，使用ERC20-USDT同样需要支付旷工费，但转账速度有了显著的提升。由于安全性好、转账速度快，ERC20-USDT被市场广泛接受，USDT的发行者泰达公司也开始支持更高效的以太坊ERC20。由于综合指数比较高，在主流交易平台比较受欢迎。
As in Omni-USDT, the use of ERC20-USDT also required the payment of absenteeism, but the speed of transfers increased significantly. Due to good security and speed of transfer, ERC20-USDT was widely accepted in the market, and the issuer of USDT, Teda, started to support a more efficient TERC20 in the near East.
3、TRC20-USDT的转账速度最快，而且链上转账无需手续费，但安全性比较低。适合需要快速到账的朋友，建议小额为主，现在一次转账一般都只需要几分钟时间。
3 TRAC20-USDT transfers are the fastest and the chain transfers are free of charge, but less secure. For friends who need to be fast-tracked, it is recommended that they be small, and now it usually takes a few minutes to make a single transfer.
2019年，泰达公司宣布在波场上发行了基于TRC-20协议的USDT，TRC20-USDT诞生。发行时承诺完全公开透明，零转账费，秒级到账。和前两者不同的是，目前TRC20-USDT转账是不收取手续费的。
In 2019, Teda announced the launch of the TRC-20-based USDT, TRC20-USDT, on the market. The release was made with a commitment to be fully transparent, with a zero transfer fee, and a second-class payment.
ERC20、TRC20、Omni这三种类型的USDT在交易所内并没有差别，但在链上是不互通的，也就是说Omni上的USDT是无法转到另外两条链上的，所以在交易所充提USDT时一定要留意地址种类。
The three types of USDT, ERC20, TRAC20 and Omni, are not different in the exchange, but are not interconnected in the chain, which means that the USDT on Omni cannot be transferred to the other two chains, so it is important to keep an eye on the type of address when the exchange fills in the USD.
USDT是Tether公司推出的基于稳定价值货币美元（USD）的代币Tether USD（简称USDT），1 USDT=1美元。
USDT was introduced by Tether as a token based on a stable value currency, the United States dollar (USD), and 1 USDT = US$ 1.
USDT的发行和交易使用的是Omni（原Mastercoin）协议，它是一个基于比特币区块链的2.0币种。USDT的交易确认等参数与比特币是一致的。用户可以通过SWIFT电汇美元至Tether公司提供的银行帐户，或通过交易所换取USDT。赎回美元时，反向操作即可。用户也可在交易所用比特币换取USDT。
USDT is issued and traded using the Omni (formerly Mastercoin) agreement, which is a 2.0 currency-based Bitcoin block chain. The parameters such as USDT transaction confirmation are consistent with Bitcoin. Users can transfer the United States dollar through SWIFT to a bank account provided by Tether, or exchange it for USDT.
Tether公司严格遵守1：1的准备金保证，即每发行1枚USDT代币，其银行帐户都会有1美元的资金保障。用户可以在Tether平台进行资金查询，以保障透明度。
Tether strictly adheres to the one-to-one reserve guarantee, that is, there is a $1 guarantee in its bank account for every USDT token issue.
USDT是中心化的公司Tether发行的。在今年的4月17日之前，市场上存在着2种不同类型的USDT。
USDT was issued by a central company, Tether. By 17 April of this year, there were two different types of USDT in the market.
第一种是基于比特币的USDT (基于Omni协议发行)。 这种USDT存储在比特币地址上，所以每次转账（链上转账）时，都需要支付少量的比特币作为矿工费。
The first is a bitcoin-based USDT (issued on the basis of an Omni agreement), which is stored at a bitcoin address, so that a small amount of Bitcoin is required as a miner's fee for each transfer (a chain transfer).
除了转账需要比特币作为矿工费之外，每发起一笔USDT转账，都会对应地生成一笔数量极小的比特币转账。所以，每发起一笔基于比特币的USDT转账，钱包地址中至少要有0.0002个比特币才能保证转账成功。同时，收款方在收到一笔 USDT转账时，也会收到一笔最小金额的比特币转账。
In addition to the amount of bitcoin required for the transfer as a miner’s fee, each USDT transfer is matched by a very small bitcoin transfer. Thus, every dollar transfer based on bitcoin is initiated with a wallet address of at least 0.0002 bitcoins to ensure that the transfer is successful.
第二种是基于以太坊的USDT（基于ERC-20协议发行）。这种USDT存储在以太坊地址上，相对应的，每次转账（链上转账）时，需要消耗Gas，也就是ETH。
The second is a USDT based on the Etherms (based on the ERC-20 protocol). This USDT is stored at the Etherms address, corresponding to the need to consume Gas, or ETH, for each transfer (a chain transfer).
目前，市场上的USDT绝大部分是基于比特币的USDT，基于以太坊的USDT份额很低（约3%）。
Currently, the vast majority of USDTs in the market are based on USDT in Bitcoin, and the share of USDTs based on Etheria is low (about 3 per cent).
4月17日，第三种USDT诞生了，它是基于TRON网络（波场）发行的USDT。基于TRON网络的TRC-20 USDT，存储在TRON的地址当中，充值、提现都是通过TRON网络进行，而且转账免费。
On April 17, the third USDT was born, based on the Tron network (bandyard) for the USDT. TRC-20 USDT, based on the Tron network, is stored at Tron’s address, and the values, withdrawals and transfers are made through the Tron network and are free of charge.
上述三种USDT，哪种转账最快呢？因为波场网络达到1500TPS，目前来说转账最快。
Which of the three USDTs is the fastest transfer? Because of the 1,500 TPS network, it's the fastest transfer at the moment.
哪种USDT转账最安全？有人表示波场的DPoS 27名超级节点没有其它两个网络来得安全，最安全的也就只有比特币网络了。
Which USDT transfers are the safest? Some say that the two other two networks are safe for the two DPOS 27 supernodes in the waves, and only the Bitcoin network is the safest.
大笔转账推荐基于比特币的USDT，折中选择基于以太坊的ERC-20 USDT，小额转账可以选择基于波场的TRC-20 USDT，速度更快一点。
Large transfers are recommended on the basis of USDT in Bitcoin, split on the basis of ERC-20 USDT in Ether, and small transfers can choose on the basis of TRC-20 USDDT at a faster pace.
充值、提现时谨防资产丢失
Do not lose assets when full value is raised.
基于比特币的USDT，和基于以太坊的USDT，两者是不兼容、不能相互转账的。
USDT based on Bitcoin, and USDT based on Etheria, are incompatible and cannot be transferred to each other.
那么，如何知道你的USDT，是属于哪一种USDT呢？
So, how do you know what kind of USDT you belong to?
其实很简单，可以通过存储的USDT地址判断：地址是“1”开头的，属于基于比特币的USDT；地址是“0x”开头的，属于基于以太坊的USDT。换句话说，基于比特币的USDT，只能存储在比特币地址上；基于以太坊的USDT，只能存储在以太坊地址上。
In fact, it is easy to judge by storing a USDT address: “ 1&rdquao; first, a USDT based on Bitcoin; first, &ldquao; 0x&rdquao; first, a USDT based on Etheria. In other words, a USDT based on Bitcoin can only be stored on a Bitcoin address; and, second, a USDT based on Etheria address.
至于第三种基于TRON的USDT，目前有一部分交易平台已经支持了，地址是“T”开头的。
As for the third TRAC-based USDT, some of the trading platforms are now supported at & ldquo; T” at the beginning.
▲ 三种USDT地址示例
Examples of three USDT addresses
无论是转账，还是从交易平台充值、提现，都需要注意分清楚将要操作的USDT是属于哪一种类型
Whether it's a transfer or a collection from a trading platform, it needs to be clear what type of USDT is going to operate.
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