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7 votes

What is bitcoin mixing/laundering for?

Bitcoin transactions are traceable, public and are recorded permanently. Although, there are some ways to minimize that, by not reusing addresses and have multiple wallets for different purposes. But ...
Papa Lazzarou's user avatar
4 votes

Why should I use a Bitcoin Mixer?

Using a mixer helps preserve your financial privacy. The question is: who are you protecting your privacy from? Bitcoin transactions are public record, so anybody can view any historical transaction ...
chytrik's user avatar
  • 18.3k
4 votes
Accepted

Do I need to mix my coins to stay anonymous?

It depends what you mean by "knows" and "proof". You're right that an analyst will not be able to be prove with absolute certainty that you sent the coins to address 3, because it is possible, ...
Nate Eldredge's user avatar
4 votes
Accepted

Does Bitcoin + mixers = Monero?

No. Monero's ring signatures draw on Monero's complete TXO set to create a larger anonymity set. Monero's method has the disadvantage that since it is unclear which TXO were actually spent, they can ...
Murch's user avatar
  • 75.7k
3 votes
Accepted

Is Whirlpool safe to use?

Whirlpool (and Chaumian Coinjoin in particular) creates a new transaction where your coins are mixed with other users coins while allowing you to ensure you receive the same amount of coins out of the ...
Hannah Vernon's user avatar
  • 1,563
3 votes
Accepted

Do any exchanges allow you to examine the bitcoin before you buy it?

I don't think such a service exists for a few reasons, like that it would be impractical. When you buy on a centralized exchange, you're not actually buying a specific coin (UTXO) but rather a promise ...
Vojtěch Strnad's user avatar
3 votes
Accepted

Are "coin mixers" actually a real thing? Can they be trusted?

Bitcoin privacy is a complicated and nuanced topic, to really get a good idea of what is involved, I would recommend reading this article. That said, I can still provide you with some more direct ...
chytrik's user avatar
  • 18.3k
3 votes
Accepted

Can one mix bitcoins by oneself?

No, you do need a mixer. Even if you were to generate a million random transactions with your wallet, 100% of the value in the unspent output from the mixing could be linked to the original wallet ...
maservant's user avatar
  • 1,041
3 votes

What is a bitcoin tumbler?

I recently came across an article that clearly articulates what a tumbler intends to accomplish. The analogy they gave was a collection plate at a church: You may have seen collection bags that go ...
fbrereto's user avatar
  • 601
2 votes
Accepted

Is this mixing routine secure ?

This mixing service seems solid overall. You could improve it in several ways: Don't shapeshift your mixed BTC into Zcash. Shapeshift uses "transparent addresses" - which means the Zcash transaction ...
Daniel Ternyak's user avatar
2 votes

SharedCoin vs JoinMarket, Pros and Cons of each

I'll do my best. SharedCoin is no longer around. It used to have a centralized server which collected inputs and outputs from users then merged them into one big coinjoin transaction. They allowed you ...
Daniel McNally's user avatar
2 votes

Single "Multiple Inputs Tx" vs Multiple "Single Input Tx"

With option 2, most analyses will conclude that Alice owned A1, A2 and A3, because the transactions which spent them have no change address. Typically, you assume that the amount you have held in a ...
Mark H's user avatar
  • 3,334
2 votes

Mixers (bitcoin)

Mixers charge fees, which prevents transactions from using standard chunk sizes. This creates security risks by allowing one to distinguish between mixer and regular transactions.
Werner's user avatar
  • 121
1 vote

How many transactions are coin tumblers responsible for?

A tumbler is a centralized service, different from CoinJoin protocols like Wasabi, Samourai, or JoinMarket. Thus, deposits and withdraws from Tumblers can look like small 1-input-2-ouput transactions, ...
Sachin Meier's user avatar
1 vote
Accepted

Newbie question about the security of mixing

Technically the others nodes you are connected to would see you sending the transaction to them but they wouldn’t know if it is your transaction or someone else’s and you are just relaying it. There ...
Mike D's user avatar
  • 3,569
1 vote
Accepted

Is there any point mixing coins if I were to use an online wallet?

Assuming that you'd like to protect your privacy by mixing coins, then yes, there would be a reason. Using an 'online wallet' (I am assuming you mean an online wallet-service, that has a website you ...
chytrik's user avatar
  • 18.3k
1 vote
Accepted

Single "Multiple Inputs Tx" vs Multiple "Single Input Tx"

Sidenote: bitcoins exist as unspent transaction outputs (UTXOs), so with this in mind the two options you outlined for Alice create two different situations: in situation 1, Alice will have one UTXO. ...
chytrik's user avatar
  • 18.3k
1 vote

What prevents someone from tainting the coin tumbling pool of the Wasabi wallet?

AFAIK Coinbase looks for a five hops before / after incoming / outgoing TX. So adding extra hops will be enough for now. It can be automated with Samourai Wallet's Ricochet or my scripts for bitcoin-...
Kristaps Kaupe's user avatar
1 vote

Mixing Unequal Inputs

I don't have an answer to your question directly, but it's worth pointing out that anything other than 32 x 0.1btc inputs and 32 x 0.1btc outputs provides worse anonymity. Even having 0.3, 0.3, 0.3, 0....
user46871's user avatar
1 vote

Bitcoin Mixing? Is it even real?

Take a look at Wasabi Wallet https://www.wasabiwallet.io/ it is a privacy focused wallet and comes with a built-in coinjoin feature.
lontivero's user avatar
  • 201
1 vote
Accepted

Anatomy of mixing transactions

As I see it, the techniques you are referring to are two possible but different ways of doing mixing. The first one, explained in Bitcoin and Cryptocurrency Technologies book is referring to a kind of ...
sr_gi's user avatar
  • 3,220
1 vote
Accepted

Can a transaction be created by 2 different wallets?

Yes. There's a project called Lighthouse that does something very similar. Bitcoin transactions either completely succeed or completely fail. We can use this by starting with a transaction that has ...
Nick ODell's user avatar
  • 29.4k

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