Quote from: DaveF on November 03, 2021, 06:56:18 PM

Which exchangess? Most of the US based ones, like Coinbase & Gemini will close your account if they think funding is coming from a mixer. There are lots of discussions about that happening here and on many other sites.

Coinbase & Binance for example

Quote from: Fortify on November 03, 2021, 07:03:17 PM

Your small scale testing is unlikely to raise any red flags because so much cryptocurrency is flowing around and intermingling all the time, it wouldn't make sense to ban people for the odd occasion. The people who will feel these sort of bans are the large scale or regular people where almost all of their transactions are inbound from identifiable mixer addresses. We're talking about people who have many dozens of transactions, probably involving fairly large sums, that fit the profile of someone who is trying to clean their money. One of the big benefits of Bitcoin is traceability so if you have intelligence on mixer addresses and have a lot of activity giving you visibility on "normal" transactions (aka a large exchange) then it's theoretically possible to make some educated connections.

What is a Mixer address? mixers use each address 1 time as far as I know and have seen. I don't see how this is still applicable in 2021. It might have been in the past.

Quote from: 20kevin20 on November 03, 2021, 07:06:01 PM

I think mixers are easy to detect when the transaction either comes directly from e.g. a CoinJoin or from a known mixer's wallet. I've never studied mixing heuristic analysis but I think it's not impossible to find at least few of the addresses a mixer owns?
Anyway, I think the easiest way to hide this history is just bouncing your mixed BTC from address to address. After a few days of every-now-and-then bounces, I doubt anyone will have a clue. Perhaps this is a tactic also used by mixers?

I'd be curious to know the answer as well. There most likely still are patterns through which they can find the origin of an address's coins.

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Same goes for coinjoin. In the past wasabi used to out themselves by resusing some of the change addresses but now, all there is left is to label a tx as a potential coinjoin. there is no certainty (as with all heuristic approaches). The bouncing is very easy to track in any graphical display of your transaction history.

Quote from: titular on November 03, 2021, 07:11:40 PM

Quote from: 20kevin20 on November 03, 2021, 07:06:01 PM

Anyway, I think the easiest way to hide this history is just bouncing your mixed BTC from address to address. After a few days of every-now-and-then bounces, I doubt anyone will have a clue. Perhaps this is a tactic also used by mixers?

This tactic would be no match for a standard blockchain analysis tool. They would easily be able to follow that trail of transactions. The key is to use all of the privacy features that some of these new-age mixers present. This includes changing output values to keep any analysis tool from matching up inputs and outputs.

But bouncing transactions around in such a rudimentary way would be highly ineffective.

This is a good point. So as I see, randomized outputvalues with delayed payouts. How can chainanalysis or other analytical services still claim that certain TX is from a mixer. I just don't see how but maybe someone can reassure that it still works.

Overall, my question is really just that: Can one rely on this information by analytical services or not. "Known wallet" stuff is no longer applicable as from what I have seen how miners work in 2021. Hence in the title "2021". I know it was much easier years ago.