Crypto mixers: What is a Bitcoin mixer, and what is it used for

Everyone knows that Bitcoin transactions are recorded alongside wallet addresses. While the transactions are out there for everyone to see, the identities behind the wallets remain hidden – well, mostly. There are methods to uncover who’s behind a wallet. 

That’s why special services, called Bitcoin mixers, have sprung up in response to the growing need for privacy in the digital currency world. How a Bitcoin mixer can help to keep your crypto safe?

What is a Bitcoin mixer?

Bitcoin mixers are a solution for those who value their privacy and want to make Bitcoin transactions anonymously. The dawn of Bitcoin’s inception was believed to be the most convenient way of anonymizing online payments. However, as time went on, people familiarized themselves with the blockchain and discovered that its public feature stored data that could reveal the transaction history of any chosen address. KYC regulations have made it even more difficult for people to remain anonymous in the crypto space.

But with BTC mixers, also known as tumblers, you can reroute your Bitcoin transactions through complex semi-random networks and private pools, making it more challenging to track the transaction history of a wallet address.

How does a Bitcoin mixer work and how to use it?

How to use a Bitcoin mixer? First, Bitcoin users transfer their coins to a crypto mixer of their choice, mixing them with other transactions to disconnect the link between the original sender and the intended recipient. 

In layman’s terms, a BTC mixer is a detour point consisting of programs that blend a web of transactions before the designated funds reach the recipient. For instance, if a sender transfers funds from their wallet #namedW, the said coins are first directed to a mixer with a wallet address #namedX. The Bitcoin tumbler then mashes up the transaction records with other coins, thus creating a new address #namedY and transfer the funds to the recipient address #namedZ. 

Meaning:

Funds sent from Wallet #namedW to #namedZ will have no connection since the crypto tumbler introduced new receiver and recipient wallets #namedX and #namedY, respectively.

Note: The recipient address will receive a slightly lesser amount to account for the Bitcoin mixers’ fee, which is 0.25 and 3% of the transaction amount. Also, don’t forget to factor in the transaction fees in the bitcoin network. 

Types of Bitcoin mixers

There are two types of Bitcoin mixers: centralized and decentralized mixers. 

Centralized Bitcoin mixers

Centralized Bitcoin mixers, also called custodial mixers, are third-party entities that accept BTC payments and send back different Bitcoins. An example of that is Blender.io. 

While centralized Bitcoin mixers offer a more straightforward solution to crypto mixing and charge lower rates, they suffer from two significant flaws: 

1. Centralized Bitcoin mixers can keep users’ mixing logs, which contain personal details of users who sent and received coins from the mixer. Since this data is available, centralized Bitcoin mixers may be compelled to share the mixing logs with governments and blockchain forensic experts when investigating financial crimes. 
2. As a third-party entity, users’ transactional details can be lost in the process resulting in the funds not reaching the intended destination. After initiating a transaction, the mixer could refuse to make your return payment, basically getting away with your funds. 

Decentralized Bitcoin mixers 

Decentralized Bitcoin mixers, also referred to as non-custodial mixers, don’t require a third party. They leverage smart contracts or protocols such as CoinJoin to encrypt crypto transactions. Decentralized Bitcoin mixers typically pool large groups of people, usually up to 100 people, looking to mix a certain amount of Bitcoin. The pooled amount is then redistributed to the number of users gathered, each getting their intended funds minus the service costs. 

Since they don’t keep a mixing log, decentralized Bitcoin mixers guarantee complete anonymity and privacy. However, they are not ideal for beginners because they are technical and require a certain amount of users to be efficient. 

What are the features of a good Bitcoin mixer?

When looking to choose an ideal Bitcoin mixer, there are several factors you should consider, including: 

• Full anonymity 
• Security 
• Fair fees
• Availability of multiple addresses 
• Zero transaction fees
• No maintenance of mixing logs and user records 
• Quick transactions 

Advantages of using Bitcoin mixers 

While Bitcoin mixers have been associated with “cleaning” illicit Bitcoin obtained from illegal activities such as cybercrimes, money laundering, and drug trafficking, they play a crucial role in ensuring the complete anonymity and privacy of Bitcoin users. 

There are several advantages of keeping Bitcoin transactions private and anonymous, but keeping them away from fraudsters’ radar remains the most practical. Bitcoin whales are highly recommended to use mixers when transacting with large amounts. 

Another benefit of using a Bitcoin mixer is overcoming strict government regulations on Bitcoin, including heavy taxation. 

Risks and concerns

The biggest concern with Bitcoin mixers is that they create the best playgrounds for perps to circumvent governments’ sanctions restricting criminal activities online. Mixers make it hard for financial watchdogs to investigate and track criminals, such as hackers, money launders, and drug traffickers.  

Anonymity conditions presented by mixers have been a nightmare for law enforcement agencies and forensic analysts to do their job to the extent of banning them in several countries. In the U.S., mixing bitcoin in large amounts violates anti-structuring laws. For instance, in April 2021, Roman Sterlingov, the man behind Bitcoin Fog-a Bitcoin mixer, was arrested by U.S. federal authorities and charged with money laundering and unlicensed operations. 

Other concerns with Bitcoin mixers include high fees, which might not be convenient for small transactions and are extremely expensive for transactions with large sums of money. Lack of trust is another concern, considering that some Bitcoin mixers, such as BitMixer.io, have closed without notice, going away with users’ coins. 

Alternatives to Bitcoin mixers

While Bitcoin mixers offer a way to hide the tracks of Bitcoin transactions, they’re just one option among several. Chain-hopping offers an alternative tactic to mask transaction routes, entailing the transfer of assets across multiple platforms via accounts established with either inexpensively acquired or illicitly obtained identities.

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