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Topic: Tainted Bitcoins? (Read 1840 times)

full member
Activity: 179
Merit: 250
May 17, 2017, 11:44:00 AM
#32
What is considered an unacceptable level of taint? At what % does it become a problem?  Has there been a precedent for this?
hero member
Activity: 966
Merit: 535
May 17, 2017, 10:44:37 AM
#31
Hey guys, thanks a lot for the useful replies. I greatly appreciate them. Also, I want to say that I bought like 1.45 btc from Kraken like the other day and it was 29% tainted. What do you think about that?


@BitcoinNewsMagazine May I ask how to use that service? I mean, I input my wallet there and get all sorts of data. I was thinking that if some of my coins were sent from a known wallet (aka well known wallet with stolen funds) then I would've seen a message about it there?

I apologize, I'm not good with interpreting that data.

the "taint" you see on blockchain.info is not what you think it is. read the answer that FlamingFingers gave you.
and when you are buying bitcoin from an exchange service like Kraken and withdraw it to your personal bitcoin address, the coins will come from Kraken's wallet and usually if you search the address that sent you those coins in walletexplorer you'll see kraken as a result. that service is good but not complete, it is mostly there to show their capability of blockchain analysis and as a free advertisement for their paid work.

I was also thinking that tainted Bitcoin is not want people think. I don't think there is any reason for worry.  It's pure paranoia. I'm not sure why coinbase closes account but I would never ever any currency​ on any exchange for just that very reason.

I guess it is good to know to be on the safer side maybe or just to stay informed.
sr. member
Activity: 318
Merit: 260
May 16, 2017, 12:18:36 PM
#30
You are either crazy or simply performing money laundry, you suck at both, instead go like this;
Buy whatever you can afford to buy.

Open BitMixer.io and send them 10% of your bitcoins and give them an address no matter what address.
Sell whatever you receive in Kraken and then send another 10% until you are all done and then go to sleep knowing you are in the clear.

People might scare you by lies and misinformation, better not pay any attention to them.

Not wanting to be tracked to exchanges or service wallets has nothing to do with money laundering.. Your BTC is eventually going to go through a fiat institution if you want to use it as currency in most of the world.. Everything from prepaid cards at the local dollar store up to a broker account has a identification requirement and is reported to the federal government in every country..

One of the things that's always annoyed me about this community is how people will catch grief for things like this, but pre-mined alt-coin authors and half-arsed casino and niche owners nobody bats and eye to.. People here even quickly forget about site owners literally leaving with millions of USD worth of BTC inside a couple weeks(who usually go startup again and repeat)..
hero member
Activity: 924
Merit: 506
May 13, 2017, 04:23:43 PM
#29
You are either crazy or simply performing money laundry, you suck at both, instead go like this;
Buy whatever you can afford to buy.

Open BitMixer.io and send them 10% of your bitcoins and give them an address no matter what address.
Sell whatever you receive in Kraken and then send another 10% until you are all done and then go to sleep knowing you are in the clear.

People might scare you by lies and misinformation, better not pay any attention to them.
legendary
Activity: 1372
Merit: 1014
May 13, 2017, 04:05:44 PM
#28
Quick way to beat 'tainted' coin inputs: Use a blacklisting service against inputs

Stupid question, what is that? Please explain.
sr. member
Activity: 318
Merit: 260
May 13, 2017, 04:00:59 PM
#27
Quick way to beat any tracking: Go through any time-randomizing mixer, or gateway and abandon any change outputs.

Quick way to beat 'tainted' coin inputs: Use a blacklisting service against inputs
legendary
Activity: 1372
Merit: 1014
May 13, 2017, 03:49:49 PM
#26
I was recently looking into that, because I am in fact worried about fungibility

If there was a magical method to connect an owner to each BTC wallet on the planet, fungibility would be destroyed for sure. Even if we never use BTC for illegal purposes, this is still bad, because one would be constantly at risk of handling funds that are connected to crime. BTC could become worthless due to that.

So  I was curious whether ZEC, XMR or DSH would offer better fungibility and found this.  Shocked

https://www.reddit.com/r/DarkNetMarkets/comments/5cb74u/blockchain_analysis_and_antimoney_laundering/

I believe that this KI spider type of software will destroy BTC fungibility in the long term and it clearly looks as if XMR is (at this point in time) offering the best alternative.
sr. member
Activity: 318
Merit: 260
May 13, 2017, 03:46:21 PM
#25
I am actually reading about tainted bitcoin for the first time and even the way the tainted bitcoin came about but the issue is how do one get it tainted especially where its a scam situation. Do I report somewhere or I paste the transaction id somewhere? Also, I feel it won't still have any effect since we already have a mixing service to clean it of.

It's only tainted when a mixer or exchange refuses it because they blacklist the input.. It has nothing to do with blockchain or crypto but instead their own or outsourced seperate database..

People are mostly wrong about bitcoin security. chainalysis.com only needs input and output flow because typical user behavior.. They have the best tracking algorithms.. It has nothing to do with crypto or IP data.

My credibility: I wrote one of the best mixers ever and I follow chainalysis behavior through headlines.
newbie
Activity: 51
Merit: 0
May 13, 2017, 03:43:20 PM
#24
Hello,

I buy Bitcoin locally with cash and charge a 3.5 percent commission. I then sell the Bitcoin in Kraken and cash out.
I've been noticing that some of the Bitcoins I get are tainted (https://blockchain.info/taint/*bitcoin address here*) and I'd like to know what risks I'm taking by selling such Bitcoins there.

Should I be worried?

This brings us to the old bitcoin problem: lack of fungibility. Since the blockchain is public, some addresses have been linked to criminal activity. It shouldn't be a problem, because all bitcoins should be considered valid, but if authorities decide it's a problem, then it becomes a problem, unfortunately.

I hope future improvements in privacy such as CoinJoin and Confidential Transactions can be enabled by default and work seamlessly. Meanwhile yes, you should worry about coins linked to criminals...

That in theory should solve everything but even so, blockchain analysis will always be around. Maybe when coinjoin comes out it'll be a big business trying to figure out who's sending what where (and when).
sr. member
Activity: 322
Merit: 250
May 13, 2017, 03:41:02 PM
#23
I am actually reading about tainted bitcoin for the first time and even the way the tainted bitcoin came about but the issue is how do one get it tainted especially where its a scam situation. Do I report somewhere or I paste the transaction id somewhere? Also, I feel it won't still have any effect since we already have a mixing service to clean it of.
sr. member
Activity: 318
Merit: 260
May 13, 2017, 03:19:50 PM
#22
Mixers no longer work. The coin analytics companies can identify and see past mixers now and have been for awhile. If you need to anonymize bitcoin you have to jump to an opaque blockchain and back, and take care on how you do it to avoid timing analysis.

wrong..

chainalysis.com uses input, outputs, and timing to map. If you have no change outputs as inputs they fall back to timing and back-data behaviour patterns.. They are forced to eventually attribute using exchanges through government or willful cooperation..

Nobody can map seeds or key pairs cryptographically..
legendary
Activity: 1806
Merit: 1164
April 29, 2017, 12:43:27 PM
#21
Mixers no longer work. The coin analytics companies can identify and see past mixers now and have been for awhile. If you need to anonymize bitcoin you have to jump to an opaque blockchain and back, and take care on how you do it to avoid timing analysis.
hero member
Activity: 672
Merit: 500
April 29, 2017, 10:16:48 AM
#20
Hello,

I buy Bitcoin locally with cash and charge a 3.5 percent commission. I then sell the Bitcoin in Kraken and cash out.
I've been noticing that some of the Bitcoins I get are tainted (https://blockchain.info/taint/*bitcoin address here*) and I'd like to know what risks I'm taking by selling such Bitcoins there.

Should I be worried?
That was a really big issue some time ago, because bitcoin was mostly used for illegal activities.
When it was not known so well, and when it was actually cheap, BTC was really hard to spend in a regular online shop with legit things: the stores simply didnt know about bitcoin yet.

Back in those times, illegal activities was the big part of the BTC volume, but it has changed. People now are using it for a good purposes mostly, but tainted bitcoins are still present in the network.

Just find a reasonable mixer service, and deposit them there. If you will let them go through it, im sure that will fix your issue.
You should always check if your payments do not contain tainted bitcoins.
legendary
Activity: 2590
Merit: 1022
Leading Crypto Sports Betting & Casino Platform
April 29, 2017, 10:07:07 AM
#19
By converting currency for a fee you are operating as a money transmitter and my be breaking the law.

You could also be accused of money laundering if your trading with criminals.

If a seller tells you point blank the funds are used or have been used for/in illegal transactions/activities then you are an accomplice to any and all of those crimes after the fact.

Know your local laws.

In addition if you have stolen coins from an online exchange and then turn around and try to sell those same coins on the same exchange they were stolen from they might have legal ground to just take back their coins and give you the finger.


how can someone prevent this? tainted bitcoin could be the one that someone is using to buy altcoin on some exchange and then bought by someone else which is innocent and didn't know that they were tainted also tainted bitcoin can be mixed with other not tainted bitcoin and sold with them on some exchange without no one knowing or worse sold to someone who have nothing to do with those criminal and spread them to friends and such
legendary
Activity: 1904
Merit: 1074
April 29, 2017, 09:51:33 AM
#18
It is for this exact reason why I am supporting mixer software. You are trading with cash every day that might have been stolen or used to buy

drugs... does that make you a criminal? The tainted coins were used for some criminal activity... but you were not the person that were involved

with the crime. To be safe, you can just push the coins through a mixer to clean them.  Wink
sr. member
Activity: 406
Merit: 250
April 29, 2017, 07:34:25 AM
#17

Contaminated bitcoin is not a rare case. This happens very often. And of course, we always have a solution for that, so many systems can handle your concerns. Right on this forum, bitmixers and bitblenders are the two most reliable mixing systems. Try it, and you will get the best results. Don't hesitate!

In fact, many tainted coins were spread to others by the "mixers". I guess we do not need to worry about this for the time being. The exchanges (includeing bitcoin <--> Altcoin exchanges, such as Poloniex) are doing their best to avoid illegal activities.

The "mixer" is not a means of spreading contaminated currency; otherwise, it will clean and secure your currency, which is completely safe and legal. Therefore, there is no reason to talk about polonox avoiding illegal activities, which is irrelevant. But in reality, we can not distinguish between contaminated currencies, so the mixer is just a precautionary measure.
legendary
Activity: 2282
Merit: 1023
April 29, 2017, 07:22:04 AM
#16

Contaminated bitcoin is not a rare case. This happens very often. And of course, we always have a solution for that, so many systems can handle your concerns. Right on this forum, bitmixers and bitblenders are the two most reliable mixing systems. Try it, and you will get the best results. Don't hesitate!

In fact, many tainted coins were spread to others by the "mixers". I guess we do not need to worry about this for the time being. The exchanges (includeing bitcoin <--> Altcoin exchanges, such as Poloniex) are doing their best to avoid illegal activities.
hero member
Activity: 896
Merit: 500
April 29, 2017, 06:44:42 AM
#15
Hello,

I buy Bitcoin locally with cash and charge a 3.5 percent commission. I then sell the Bitcoin in Kraken and cash out.
I've been noticing that some of the Bitcoins I get are tainted (https://blockchain.info/taint/*bitcoin address here*) and I'd like to know what risks I'm taking by selling such Bitcoins there.

Should I be worried?

Contaminated bitcoin is not a rare case. This happens very often. And of course, we always have a solution for that, so many systems can handle your concerns. Right on this forum, bitmixers and bitblenders are the two most reliable mixing systems. Try it, and you will get the best results. Don't hesitate!
legendary
Activity: 1372
Merit: 1032
All I know is that I know nothing.
April 29, 2017, 06:00:11 AM
#14
Hey guys, thanks a lot for the useful replies. I greatly appreciate them. Also, I want to say that I bought like 1.45 btc from Kraken like the other day and it was 29% tainted. What do you think about that?


@BitcoinNewsMagazine May I ask how to use that service? I mean, I input my wallet there and get all sorts of data. I was thinking that if some of my coins were sent from a known wallet (aka well known wallet with stolen funds) then I would've seen a message about it there?

I apologize, I'm not good with interpreting that data.

the "taint" you see on blockchain.info is not what you think it is. read the answer that FlamingFingers gave you.
and when you are buying bitcoin from an exchange service like Kraken and withdraw it to your personal bitcoin address, the coins will come from Kraken's wallet and usually if you search the address that sent you those coins in walletexplorer you'll see kraken as a result. that service is good but not complete, it is mostly there to show their capability of blockchain analysis and as a free advertisement for their paid work.
full member
Activity: 129
Merit: 100
April 29, 2017, 05:20:06 AM
#13
Thanks a lot guys, I appreciate your input. If anyone else wants to chime in, feel free to do so.
I'm reading each and every reply.

Thanks again and enjoy your weekend!
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