Can we find Bitcoin wallet?

[SebastianJu]

Wouldn't a desktop client makes it more vulnerable to be traced since finding an ip of a device i.e pc would be much easier?

No, this doesn't make sense. Exactly how do you plan to get the IP address? Even if you did that how would you connect the IP address to a person? What if they were on a public Wi-fi, or using TOR or a VPN?

Depends on the client, an electrum server would have your IP as its your only connection.

Unfortunately electrum servers does know much more. They know all the addresses of a wallet and can connect them. They only would need one address to be known belonging to a user and they would know that all these addresses belong to that user.

It is not a good idea to use the autoconnect feature on electrum since you will spread your information over all the servers and you never know if one of them is a not so nice guy.

I wonder if that is there are more wallets of that kind.

Well, I hope there are not many malicious servers but surely someone checked out what he can get. And since the wallet connects to the server it might be good to hide your ip with tor. Works fine for me though I think even when they would not know the real IP, they can know who someone is if he posted one of the addresses connectable to a person and what addresses he has in that wallet.

[ctlaltdefeat]

Can we find out which online wallet a particular bitcoin address belongs to?I keep my coins at blockchain.info and some coins at Zebpay,Is it possible for someone to identify which address belongs to which of above wallet or any wallet?

its impossible,we can't identify wallet based on bitcoin address,its really hard,bitcoin address created with encrypt and not have signature or mark on each addess,its tottaly random,except is wallet create so much vanity addresses for their users.

[Patatas]

its impossible,we can't identify wallet based on bitcoin address,its really hard,bitcoin address created with encrypt and not have signature or mark on each addess,its tottaly random,except is wallet create so much vanity addresses for their users.

How did notaek even accept you in a signature campaign ? lol .Coming to the point @Wapinter,its not impossible to know whether the addresses are linked to a particular wallet.The tainted analysis might help if you can establish a severe link between them.Most of the good services like LocalBitcoins has their wallets named on the service name and when you search them,all the addresses will be linked to that particular wallet, "LocalBitcoins" in case of this service. 

[eternalgloom]

Is the IP address of the person sending a transaction publicly visible?

No.

I've noticed there are some ip addresses atached to transactions, but figured they must be from node or pool.

That's the IP address of the node that relayed the transaction. It even says on Blockchain.info:"It does not necessarily mean the IP address is the source of the transaction.".

Ok, I have no idea how I missed seeing that on Blockchain.info.
But that means that the nodes could actually tie a transaction to the IP address that sent the transaction, right?

[Lauda]

But that means that the nodes could actually tie a transaction to the IP address that sent the transaction, right?

Not necessarily. Maybe another node relayed it to the node that relayed it to Blockchain.info. You can't know this. Even if you found the node which first received the transaction, it is not like the node operator would freely give you the information for any reason.

its impossible,we can't identify wallet based on bitcoin address,its really hard,bitcoin address created with encrypt and not have signature or mark on each addess,its tottaly random,except is wallet create so much vanity addresses for their users.

False. Encryption is irrelevant here.

Unfortunately electrum servers does know much more. They know all the addresses of a wallet and can connect them. They only would need one address to be known belonging to a user and they would know that all these addresses belong to that user.

That's why people should use Core. It doesn't even take much space anymore as you can keep it running in pruned mode.

[Amph]

there is no way to connect an address to the user that is using it, this is the anonymous part of bitcoin

but if made 1 wrong move you can by follow the wrong move(one of the address connected with a purchase for example) and go up to the other address that he is using on the same wallet

however if i use multiple wallet(so a diffrent fresh address, which is different than creating new addresses ont he same wallet) each time, the story is different, you will not be able to connect them all

[Wapinter]

there is no way to connect an address to the user that is using it, this is the anonymous part of bitcoin

It is not about how to connect an address to user.It is about if an address can be connected to the wallet it belongs to.If we have a address,like 1E35dNx1BCxAzWfLjPu8K3mwWL2hhjD21M can we find out which online wallet it belongs to?

[SebastianJu]

Unfortunately electrum servers does know much more. They know all the addresses of a wallet and can connect them. They only would need one address to be known belonging to a user and they would know that all these addresses belong to that user.

That's why people should use Core. It doesn't even take much space anymore as you can keep it running in pruned mode.

Yes, the wallets basing on that codesbase become more and more attractive though it's still happening too often that the blockchain needs to be redownloaded it seems. Comes up often that problem. Or maybe they fixed it in the meanwhile.

When it would become a deterministic one, maybe at least as an option, then it would be even more attractive in my eyes. I would not like having to use an old backup only to find that some addresses can't be recovered because the backup doesn't include freshly created bitcoin addresses that might already hold coins.

[Crazygreek]

Not long ago I've read a piece of news that one of the IT companies has found a way to analyse the block chain and deanonymze absolutely any address. It was somewhere about November I suppose, will look right now and try to find it. They were going to patent the technology.

[Lauda]

It is not about how to connect an address to user.It is about if an address can be connected to the wallet it belongs to.If we have a address,like 1E35dNx1BCxAzWfLjPu8K3mwWL2hhjD21M can we find out which online wallet it belongs to?

Maybe, but that information is kind of useless to them. If somebody determines that your address is coming from e.g. Blockchain.info, what are they going to do with this information? They still don't know who you are and it is not like Blockchain.info would give out any information freely.

Yes, the wallets basing on that codesbase become more and more attractive though it's still happening too often that the blockchain needs to be redownloaded it seems. Comes up often that problem. Or maybe they fixed it in the meanwhile.

Maybe. I haven't run pruned mode myself as I run in 'full mode' and synchronize a few hours before using my wallet.

When it would become a deterministic one, maybe at least as an option, then it would be even more attractive in my eyes. I would not like having to use an old backup only to find that some addresses can't be recovered because the backup doesn't include freshly created bitcoin addresses that might already hold coins.

Backups should be frequent in these cases or you need to properly use coin control and control the input && change address each time.  

[eternalgloom]

But that means that the nodes could actually tie a transaction to the IP address that sent the transaction, right?

Not necessarily. Maybe another node relayed it to the node that relayed it to Blockchain.info. You can't know this. Even if you found the node which first received the transaction, it is not like the node operator would freely give you the information for any reason.

Yeah indeed, that sounds pretty logical. I guess one could, in theory, run a huge amount of nodes to de-anonymize part of the transactions, but this would probably not be feasible.
If I'm not mistaken it's somewhat comparable to running exit nodes for the Tor network and use them to de-anonymize the traffic.

[SebastianJu]

When it would become a deterministic one, maybe at least as an option, then it would be even more attractive in my eyes. I would not like having to use an old backup only to find that some addresses can't be recovered because the backup doesn't include freshly created bitcoin addresses that might already hold coins.

Backups should be frequent in these cases or you need to properly use coin control and control the input && change address each time.  

I already control it all the time and do regular backups though the standard wallet is different with its creation of new bitcoin addresses. It might happen that an error slowly comes into a wallet, you make backups and backups and only then realize the error. You try to go back but the last backup that does not contain it is pretty old. Happened with electrum at least once so a deterministic wallet is another form of backup that would protect the basic things in a wallet on top of backups.

[shorena]

@eternalgloom

But that means that the nodes could actually tie a transaction to the IP address that sent the transaction, right?

Not necessarily. Maybe another node relayed it to the node that relayed it to Blockchain.info. You can't know this. Even if you found the node which first received the transaction, it is not like the node operator would freely give you the information for any reason.

Yeah indeed, that sounds pretty logical. I guess one could, in theory, run a huge amount of nodes to de-anonymize part of the transactions, but this would probably not be feasible.
If I'm not mistaken it's somewhat comparable to running exit nodes for the Tor network and use them to de-anonymize the traffic.

Its even easier, you can just use a Tor browser to connect to one of the services[1] that broadcast transactions for you. I havent tried it over, but at the very least blockchain.info (via their hidden service) will allow it. If you want you can create a new account, post the raw TX in tech support or send me a PM and I (and probably others) will broadcast it for you ASAP. IPs are very easy to detach from transactions.


@SebastianJu

When it would become a deterministic one, maybe at least as an option, then it would be even more attractive in my eyes. I would not like having to use an old backup only to find that some addresses can't be recovered because the backup doesn't include freshly created bitcoin addresses that might already hold coins.

Backups should be frequent in these cases or you need to properly use coin control and control the input && change address each time. 

I already control it all the time and do regular backups though the standard wallet is different with its creation of new bitcoin addresses. It might happen that an error slowly comes into a wallet, you make backups and backups and only then realize the error. You try to go back but the last backup that does not contain it is pretty old. Happened with electrum at least once so a deterministic wallet is another form of backup that would protect the basic things in a wallet on top of backups.

AFAIK core plans to make the wallet HD in the long run.

[1] https://en.bitcoin.it/wiki/Transaction_broadcasting

[SebastianJu]

AFAIK core plans to make the wallet HD in the long run.

[1] https://en.bitcoin.it/wiki/Transaction_broadcasting

That's great. I think I simply have read too many threads of people that didn't realize that they could lose privkeys or/and actually lost bitcoins because of a backup that was slightly too old.

[RealPhotoshoper]

Can we find out which online wallet a particular bitcoin address belongs to?I keep my coins at blockchain.info and some coins at Zebpay,Is it possible for someone to identify which address belongs to which of above wallet or any wallet?

its impossible. so far i never find some wallet or exchange that use vanity bitcoin address to all their bitcoin address,for example,if coinbase create all their address with signature like this "1coinbase23FGHBGR456hH44jjbkdL" that will be cool,but i never find wallet like that.

[SebastianJu]

Can we find out which online wallet a particular bitcoin address belongs to?I keep my coins at blockchain.info and some coins at Zebpay,Is it possible for someone to identify which address belongs to which of above wallet or any wallet?

its impossible. so far i never find some wallet or exchange that use vanity bitcoin address to all their bitcoin address,for example,if coinbase create all their address with signature like this "1coinbase23FGHBGR456hH44jjbkdL" that will be cool,but i never find wallet like that.

You surely won't fine because it would become extremely high priced. Those addresses have to be mined. The longer, so the more sure someone can be that it really belongs to coinbase, the more expensive.

Though I can imagine that coinbase implements a single address per user that he should use to post in forums or so. That way they could advertise for free. I wonder if it would be worth it.

Though if someone wants then he can use an online tool to find out which addresses belong to the same wallet. If you know one of these addresses belongs to coinbase then you know the rest has to be too.

[pooya87]

Can we find out which online wallet a particular bitcoin address belongs to?I keep my coins at blockchain.info and some coins at Zebpay,Is it possible for someone to identify which address belongs to which of above wallet or any wallet?

its impossible. so far i never find some wallet or exchange that use vanity bitcoin address to all their bitcoin address,for example,if coinbase create all their address with signature like this "1coinbase23FGHBGR456hH44jjbkdL" that will be cool,but i never find wallet like that.

You surely won't fine because it would become extremely high priced. Those addresses have to be mined. The longer, so the more sure someone can be that it really belongs to coinbase, the more expensive.

Though I can imagine that coinbase implements a single address per user that he should use to post in forums or so. That way they could advertise for free. I wonder if it would be worth it.

Though if someone wants then he can use an online tool to find out which addresses belong to the same wallet. If you know one of these addresses belongs to coinbase then you know the rest has to be too.

and not to mention time consuming.
a bitcoin vanity address starting with 1coinbase (8 char) takes hour to complete. even if it takes ten minutes it is long. because most of the users that use a service like coinbase they are not exactly experts (if they were they would have used a more secure wallet instead) and they would want to have an address right away.
the service is going to suck for them if they have to wait for a long time just to receive an address.

p.s. can walletexplorer.com find out if an address belongs to coinbase or not? it is doing it for other services, but i haven't tried it for coinbase and it is not in their list

[SebastianJu]

p.s. can walletexplorer.com find out if an address belongs to coinbase or not? it is doing it for other services, but i haven't tried it for coinbase and it is not in their list

As long as they use a shared wallet it should be possible. I'm not sure if coinbase does actually.

With a shared wallet you have a deposit address but when you send coins they will come from addresses that are unknown to you. And because different addresses are merged in these transactions it can be assumed that all addresses and the connections from those addresses belong to one wallet.

[bitcoin-hunter]

You can find many Bitcoin wallets and that is very good. We all hope that people are using it more in the future and that will be nice.
The wallets are also very safe and that is very good. But the most important is that the value of Bitcoin must rise.

[SebastianJu]

bitcoin-hunter


You really didn't bother to read the first post in the thread, right? Sounds like you only have read the topic and wrote something in here fast.