what is the site that screenshot belongs to? i really wish the address wasn't omitted so that we could investigate more or at least have the site to try other addresses and see the results.
in any case in most cases i've seen the "taint analysis" is pretty crappy. for example the worst thing i have seen so far is walletexplorer.com (belongs to a blockchain analysis company) used to categorize a lot of transactions that had absolutely nothing to do with coinjoin under "coinjoin mess".
as for how, they always use the known information and follow the transactions down the line to try and link them to some sources. exchanges, gambling sites,... all have publicly known addresses and it is linked to their hot wallets and is linked to all the transactions they send (both withdrawals they pay out and deposits they move). similarly a lot of other places including dark market also have known addresses. you'd be surprised to learn how many of them are linked to their coinbase accounts! just check the news of how they catch them from time to time.
Topic: How do "they" tag BTC (from gambling, mixers, dark markets, etc.)? - page 3. (Read 619 times)
August 30, 2020, 11:42:37 PM
August 30, 2020, 11:27:47 PM
It's probably through transaction links created over time.
I remember a particular article about how Bitcoin could end up imitating the kind of clean and purity standards of gold, especially the ones implemented by the London Bullion Market Association (LBMA).[1]
As of now, we are probably aware that there are certain premiums added to virgin Bitcoins. If this kind of standard is being implemented, those which are marked as tainted are going to be considered dirty and therefore relegated as second class Bitcoins. Those that do the tagging are probably the exchanges and custodians.
However, I would stick to Bitcoin's fungibility and that 1 BTC is always worth 1 BTC regardless of where it came from.
[1] https://www.coindesk.com/bitcoin-gold-staying-clean
I remember a particular article about how Bitcoin could end up imitating the kind of clean and purity standards of gold, especially the ones implemented by the London Bullion Market Association (LBMA).[1]
As of now, we are probably aware that there are certain premiums added to virgin Bitcoins. If this kind of standard is being implemented, those which are marked as tainted are going to be considered dirty and therefore relegated as second class Bitcoins. Those that do the tagging are probably the exchanges and custodians.
However, I would stick to Bitcoin's fungibility and that 1 BTC is always worth 1 BTC regardless of where it came from.
[1] https://www.coindesk.com/bitcoin-gold-staying-clean
August 30, 2020, 11:16:56 PM
What @DaveF said is right.
You can check list of top richest wallets there https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html. If you exclude inactive addresses, you will have clearer overview.
You can check list of top richest wallets there https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html. If you exclude inactive addresses, you will have clearer overview.
August 30, 2020, 08:44:56 PM
Far gambling; many casinos have known hot wallets where they send payments from, so that is fairly simple to track.
Mixers are a bit more difficult, but since most of them are taking everyones coins and mixing them and then giving them back to people there is a good chance that there might be some coins in there from some transactions that some places will not like. But, mixers do create anonymity.
For darnket markets and other places it depends. When raided / seized the feds usually find the wallet addresses and post them.
-Dave
Mixers are a bit more difficult, but since most of them are taking everyones coins and mixing them and then giving them back to people there is a good chance that there might be some coins in there from some transactions that some places will not like. But, mixers do create anonymity.
For darnket markets and other places it depends. When raided / seized the feds usually find the wallet addresses and post them.
-Dave
August 30, 2020, 08:34:04 PM
In short, they create large numbers of accounts at those services and deposit and withdraw coins, noting the addresses involved. If your coins come from an address linked to any of the known addresses at a particular service, then they can reasonably assume that your coins came from that service.
August 30, 2020, 08:02:55 PM
...
Recently I have wondered about BTC fungibility as mixed BTC and even BTC that has been "ricochetef" a few times retains "taint", meaning, IMO, that there may be some problems when an owner wished to turn BTC into FIAT$, say, at an exchange. Some exchanges apparently do not like heavily tainted BTC it seems...
LeGaulois provided an example of a wallet from another thread, showing origins of some of the BTC in a wallet:
I myself have wallets that are "dirtier" than his, I mix most of the coins I get, but those newly received coins can come from anywhere.
My question is:
How do "they" mark or tag coins that come from gambling sites, dark markets, mixers, etc?
I can understand that stolen BTC could be "tagged" fairly easily (at least until mixed?), but who does that? Who has that authority?
Recently I have wondered about BTC fungibility as mixed BTC and even BTC that has been "ricochetef" a few times retains "taint", meaning, IMO, that there may be some problems when an owner wished to turn BTC into FIAT$, say, at an exchange. Some exchanges apparently do not like heavily tainted BTC it seems...
LeGaulois provided an example of a wallet from another thread, showing origins of some of the BTC in a wallet:
I myself have wallets that are "dirtier" than his, I mix most of the coins I get, but those newly received coins can come from anywhere.
My question is:
How do "they" mark or tag coins that come from gambling sites, dark markets, mixers, etc?
I can understand that stolen BTC could be "tagged" fairly easily (at least until mixed?), but who does that? Who has that authority?
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