The four most famous international exchanges:

Binance INTL	OKX INTL	Gate.io INTL	Huobi INTL
China Line　APP DL	China Line　APP DL	China Line　APP DL	China Line　APP DL

Note: The above exchange logo is the official website registration link, and the text is the APP download link.

As a representative of peer-to-peer electronic cash, Bitcoin is sought after and respected because of its decentralization and the fact that it does not require authorization from a central authority. However, at the same time, it is also used by some criminals.

We know that all transaction information on the blockchain is open and transparent. To send Bitcoin is to send it from one address to another, and these addresses are composed of numbers and letters. Before the address does not correspond to the person, Bitcoin It is anonymous, but once this relationship is established, it is no longer anonymous.

Can Bitcoin be recovered if it is stolen? Revealing the secrets of darknet Bitcoin anti-tracing tools? Therefore, Bitcoin is pseudo-anonymous. Once the address is associated with a person, the digital asset information is equivalent to being exposed, so some people will be particularly worried about this. Based on this demand, there are applications on the dark web that can help users hide Transaction information services can further improve privacy and anonymity. This tool is called a Bitcoin mixer.

For example, if Lao Wang wants to transfer 10 BTC to Lao Li, but he wants to hide the transaction information, then he can use the Bitcoin mixer. Through the mixer, the 10 BTC will be sent to Lao Li in random amounts at different times. Different addresses will conduct multiple transactions. Finally, Lao Li's address will receive 10 BTC that are actually transferred from Lao Wang.

Therefore, if no one knew about the transaction between Lao Wang and Lao Li, it would be difficult to connect Lao Wang and Lao Li, so the transaction information was further hidden. This kind of obfuscator that helps users hide transaction information can be divided into two types according to the principle, one is a centralized obfuscator and the other is a distributed obfuscator.

**Centralized obfuscation**

Centralized Mixer All transactions are processed within the website’s database, in this case the role of the mixer is to match different wallet addresses with different amounts and send a random amount of Bitcoin to each address until The total amount requested by the sender reaches the specified address.

This kind of obfuscator is simple and convenient to use. You only need to enter the corresponding address in the form of the obfuscator website and finally press the Enter key. Despite this, its risks are still very obvious, because it is centralized, so there is a possibility of theft and loss of users' digital assets.

Centralized mixers include MixerTumbler, BestMixer.io, Blender.io, BitcoinFog, GramShelix, and others.

**Distributed Confusion**

This type of obfuscator does not have a middleman and allows different users to freely exchange protocols with each other to achieve obfuscation purposes.

The advantage of this model is that there are no intermediaries and there is no risk of centralized confusion. However, its disadvantage is that it requires people who also want to confuse transactions. If there are no people or not enough people, it cannot proceed.

Distributed Bitcoin obfuscators include CoinJoin, SharedCoin, and CoinSwap.

**About Transaction Fees**

At present, the service fees of most obfuscators are based on the percentage of the total amount of obfuscation, which is between 1% and 3%. However, if more Bitcoins are processed, the service fees will be reduced accordingly.

**About obfuscator**

In July 2017, BitMixer, the world's largest and longest-standing Bitcoin mixer at the time, announced its closure because the U.S. government discovered that a large number of criminals were using BitMixer to transfer Bitcoins and evade tracking by the authorities. Therefore, in this situation BitMixer announced that it will cease operations.

After its closure, many obfuscators appeared on the market, but it is worth being vigilant that many of them are scams in the name of obfuscators and do not actually provide such services. According to the current obfuscation practices on the market, most people who use obfuscators will choose multiple obfuscators to obfuscate multiple times, which makes it more difficult to trace.

If there is a demand, there will be a market. Although there is no clear data to prove how many people use obfuscators to do illegal and criminal things, it is certain that the majority of people who use obfuscators are engaged in illegal or gray industries, and now supervision has increased with the supervision. Gradual penetration, and the increasing popularity of privacy coins such as Monero Dash, has further weakened the market for Bitcoin mixers.