USDT是Tether公司推出的基于稳定价值货币美元（USD）的代币Tether USD（下称USDT），1USDT=1美元，用户可以随时使用USDT与USD进行1:1兑换。Tether公司严格遵守1:1准备金保证，即每发行1个 USDT代币，其银行账户都会有1美元的资金保障。
USDT is Tether USD (hereinafter USDT), a proxy introduced by Tether based on a stable value currency of the United States dollar (USD), and 1USDT = US$1. Users can use USDT for 1:1 conversion at any time.
用户可以在Tether平台进行资金查询，以保障透明度。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。用户也可在交易平台用比特币换取USDT。 ?
Users can access funds on the Tether platform to ensure transparency. Users can transfer US dollars to bank accounts provided by Tether via SWIFT, or exchange USDTs through an exchange; reverse operations can be sufficient when the dollar is redeemed. Users can also exchange USDTs for bitcoins on the trading platform.
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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 并不是一个新出现的币种，早在 2015 年就已上线交易，但因国内交易所引入较晚，所以很多投资者对其并不是很了解。币币交易后，很多投资者都比较关心如何将手中代币兑换成法币的问题，USDT的出现给大家提供了一个将持有的代币兑换成法币的渠道。
The USDT is not an emerging currency, which was traded online as early as 2015, but is not well known by many investors as a result of the late introduction of domestic exchanges. After currency transactions, many investors are more concerned about how to convert their currencies into French, and the emergence of the USDT provides a channel for converting their holdings into French.
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各层介绍如下：
The following are described at each level:
比特币区块链层，主要实现Tether分布式帐本功能。Tether交易信息通过OP_RETURN保存在比特币的分布式帐本中。
Bitcoin blocks chain, which essentially achieves the Tether Distributed Book function. The Tether transaction information is stored in the Bitcoin Distributed Book via OP_RETURN.
Omni协议层，Omni协议层主要功能如下：
Omni protocol layer. The main functions of the Omni protocol layer are as follows:
1. 创建与销毁USDT
1. Create and destroy USDT
2. 提供OmniApi
2. Provision of OmniApi
3. 跟踪Tether流通，通过http://Omnichest.info提供区块链浏览器功能
3. Tracking Teth circulation to provide block chain browser functionality through http://Omnichest.info
4. 支持用户交易与保存Tether(USDT)
4. Support for user transactions and the preservation of Tether (USDT)
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Tether业务层，Tether业务层主要功能如下：
The main functions of the Tether business level, Tether, are as follows:
1. 法币兑换Tether(USDT)
1. French currency exchange Tether (USDT)
2. Tether(USDT)兑换法币
Tether (USDT) converts to French currency
3. 监管流通中Tether(USDT)
3. Regulating Tether (USDT) in circulation
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直观：USDT与美元是等值的，1USDT=1美元。每个币种=多少USDT，也就相当于是它的单价是多少美元。
Intuitive: USDT equals US dollar, 1 USDT = US$1. Each currency = how much USDT is equal to what its unit price is.
稳定：因为泰达币是由法币支撑的，用户可以在不受多数区块链资产价格波动影响的情况下仍然在区块链资产市场上进行交易。
Stable: Because the tadar is supported by French currency, users can still trade in the block chain asset market without being affected by price fluctuations in most block chains.
透明： 泰达币的发行公司Tether 声称其法币储存账户有定期审计以确保市面流通的每一枚泰达币有对应的一美元为支撑。储存账户状态是公开的，可以随时查询到。此外，所有的泰达币交易记录都会公布在公链上。
Transparency: Tether, the issuer of tidal currency, claims that its French currency storage account is supported by regular audits to ensure that each of the tidal currency in circulation on the market is backed by a corresponding dollar. The storage account is publicly available and can be consulted at any time.
小额交易费用：在Tether账户间交易或者在储存有泰达币的钱包间交易都不收手续费。将泰达币转换为法定货币时需要收取交易服务费。
Small transaction costs: does not charge a fee for transactions between Tether accounts or between wallets held in tadar currency.
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1.规避整体下跌风险
1. Avoid the risk of overall decline
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币币交易中，常见3种情况，以LTC/BTC交易为例：
In currency transactions, three cases are common, for example, LTC/BTC transactions:
用BTC买入LTC后，BTC和LTC都在涨，你享受两份收益；
After buying LTC with BTC, BTC and LTC are on the rise and you enjoy two benefits;
用BTC买入LTC后，BTC和LTC一个涨一个跌，你的收益取决于两个币种的涨跌幅，那个更大。只有任何一个的涨幅大于另一个的跌幅，就赚。反正，就亏。涨跌幅相等，则不赚不赔；
When BTC buys LTC, BTC and LTC go up and down one by one, depending on the increase and drop in two currencies, which is larger. Only one increase is greater than the other, and the profit is greater. On the contrary, the loss is the loss. The increase and fall is equal, and the gain is no loss.
用BTC买入LTC后，极端行情，两个币种都在跌，你需要承受两份亏损。这往往是最让人糟心的。
When you buy LTC in BTC, you fall in both currencies, and you have to suffer two losses. That's often the worst.
但是有了 USDT，是当币价下跌时，可以立刻把币换成 USDT，从而保证你的资产不缩水。
But with the USDT, when the currency falls, it can be replaced with the USDT immediately, thus ensuring that your assets do not shrink.
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2.反向操作 数字货币提现
2. Reverse operation. Digital currency withdrawal
充值很简单，USDT公司称投资者可以通过SWIFT电汇美元至Tether公司的银行帐户，或通过Bitfinex交易所换取USDT。
The charging value was simple, and USDT stated that investors could wire the United States dollar through SWIFT to Tether's bank account or exchange USDT through the Bitfinex exchange.
如果你获利颇丰，想要提现，可以先把手中的币兑换为USDT，然后通过 Tether 公司或其它平台，兑换为美元。这里你可以发现，如果你完成USDT公司的认证，在其它不需要认证的币币交易平台就可以直接进行交易了，不需要再次认证其它平台。
If you want to cash in , can convert the currency in your hand to USDT and then to US dollars through Tether or other platforms. Here you can see that if you complete the USDT certification, you can deal directly with other currency trading platforms that do not require certification, and no other platforms need to be certified again.
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不过提现流程也不是那么容易。你可以通过 Tether 公司，把手中的 USDT 还给 Tether 公司。Tether 公司销毁收到的 USDT ，发放等值的美元给用户。需要提醒的是，不管是通过电汇美元至 Tether 公司提供的银行帐户以购买 USDT ，还是将 USDT 换回成美元，都是需要完成账户验证的。据了解 Tether 的 KYC 比较难通过，兑换手续费约为5%。
But the current process is not that easy. You can return the USDT in your hand to Tether through Tether. Tether destroys the USDT received and distributes the equivalent dollar to the user. It is important to recall that whether to transfer the dollar to a bank account provided by Tether to buy the USDT or to convert the USDT back to the dollar, it is necessary to complete the validation of the account.
另外还可以通过交易平台如 kraken将 USDT 兑换美元。在 Kraken 平台，选择 USDT / USD 交易对，就可以将 USDT 换成美元。
It is also possible to convert USDT to United States dollars through trading platforms such as kraken. On Kraken platforms, selecting USDT/USD transaction pairs allows USDT to be converted to United States dollars.
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关于 USDT 的风险，Tether 公司在《Tether白皮书：一种利用比特币区块链交易的法币代币》中也写道：
With regard to the risks of USDT, Tether also wrote in Tether White Paper: a French token for trading using the Bitcoin block chain:
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Tether 是去中心化数字货币，但是我们并不是一家完美去中心化的公司，我们作为中心化的质押方存储所有的资产。
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公司可能破产；
(b) The company may be bankrupt;
公司开设账户的银行可能破产；
Banks with accounts opened by companies may become bankrupt;
银行可能冻结资金；
The bank may freeze funds;
公司可能卷款落跑；
(b) The company may run off with money;
重新中心化风险可能让整个系统瘫痪；
The risk of re-centralization could paralyse the system as a whole;
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由此可见，USDT 由 Tether 公司发行，自带了中心化属性，其中的风险点还是比较多的，需要投资者自己谨慎判断。
As can be seen, the USDT was issued by Tether, with its own centralized attributes, and its risk points were still numerous, requiring investors'own discretion.
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Tether泰达（USDT），在近几年来几乎是最受欢迎的稳定币，有着接近30亿美元市场份额，远远超越了稳定币类的对手USDC，Gemini Dollars，和JPM Coin。USDT被用来在数字货币交易平台里作为代替美元的币种，所以人们并不用必须将他们换成法币。在所有的比特币交易和所有的洗钱活动中，接近80%都是由Tether完成的。这再自然不过了，就和大部分数字货币交易过程一样。
Tetherta (USDT) has been almost the most popular stable currency in recent years, with a market share of nearly $3 billion, far exceeding stable currency rivals USDC, Gemini Dollars, and JPM Coin. The USDT has been used in digital money trading platforms as a currency to replace the dollar, so people do not have to exchange them for French. Nearly 80% of all bitcoin transactions and all money-laundering are done by Tether.
Tether泰达是现金流排名前五名的数字货币公司。他们从全球用户提供的20亿美元中获得3-5%的利润，而这一切几乎没有任何运营成本。这种他们称之为与美元兑换比例为1：1的“稳定币“，并没有考虑他们从中获取的附加利润。
Tethertada is the top five digital money companies in cash flow. They earn 3 to 5% of the profits from $2 billion provided by global users, all of which have virtually no operating costs. This is what they call a 1:1 “stable currency” that does not take into account the additional profits they derive from it.
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