usander (OP)
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July 18, 2015, 09:17:46 AM |
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Dear Bitcoin users, I am conducting a survey as part of my thesis at the Humboldt University of Berlin and I need your thoughts and opinions regarding anonymity in Bitcoin. Completing the questionnaire will take about 10 minutes of your time. If you are interested in the results of the survey, please state your email-address on the last page. Of course your email-address will only be used to inform you about the research findings. All data will be treated as highly confidential and anonymously stored. http://www.unipark.de/uc/BITCOIN/66b7/ I would be glad about your participation! Ulrike Sander
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LiteCoinGuy
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In Satoshi I Trust
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July 18, 2015, 09:33:09 AM Last edit: July 18, 2015, 10:03:53 AM by LiteCoinGuy |
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habs mal ausgefüllt Ulrike sofern es weitere fragen gibt, PM. (aber die menge an BTC im eigenen besitz beantwortet dir niemand ehrlich )
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batesresearch
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July 18, 2015, 10:12:36 AM |
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Completed.
Great survey, some very good questions.
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Visit Satoshi's Place, a Bitcoin Hub based in Bury, Manchester, UK. Website: https://satoshisplace.co.ukGoals: Educate & Onboard users in to Bitcoin. Lightning network⚡️
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Lauda
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Terminated.
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July 18, 2015, 12:10:41 PM |
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I've completed it as well, without entering my email. You can always publish your results here. There were only minor problems with it, although I can't do the survey again to tell you exactly what it is. A example would be the question related to the way that I store Bitcoins. I was not able to deselect a option once selected; I could only switch it between the 3 answers.
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"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" 😼 Bitcoin Core ( onion)
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Hazir
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★Nitrogensports.eu★
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July 18, 2015, 12:24:21 PM |
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I just completed it. I must say it is well done professional survey, I liked how you don't have to fill every field (especially regarding personal information). Good luck with your thesis and please post results of your research here as I don't think many people will give you an email address.
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Xialla
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Merit: 1000
/dev/null
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July 18, 2015, 12:36:22 PM |
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survey completed.
as mentioned couple of times here above, I have to confirm, that it is one of the best survey which I ever saw related to bitcoin. Hope that valuable outputs help the university and help us with another bitcoin direction.
I don't post my mail for privacy reasons, will be there some public results or something?
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shorena
Copper Member
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Activity: 1498
Merit: 1520
No I dont escrow anymore.
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July 18, 2015, 05:25:49 PM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
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Im not really here, its just your imagination.
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Lauda
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Merit: 2965
Terminated.
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July 18, 2015, 06:11:34 PM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true.
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"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" 😼 Bitcoin Core ( onion)
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LiteCoinGuy
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Merit: 1010
In Satoshi I Trust
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July 18, 2015, 06:45:12 PM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true. --- But Gavin Andreson indeed notes that "Unless you are very careful in the way you use Bitcoin (and you have the technical know-how to use it with other anonymizing technologies like Tor or i2p), you should assume that a persistent, motivated attacker will be able to associate your IP address with your bitcoin transactions." --- i guess we should target that problem with a sidechain in the future
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shorena
Copper Member
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Activity: 1498
Merit: 1520
No I dont escrow anymore.
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July 18, 2015, 08:45:06 PM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true. --- But Gavin Andreson indeed notes that "Unless you are very careful in the way you use Bitcoin (and you have the technical know-how to use it with other anonymizing technologies like Tor or i2p), you should assume that a persistent, motivated attacker will be able to associate your IP address with your bitcoin transactions." --- i guess we should target that problem with a sidechain in the future Yes, its possible with transactions and a lot of motivation/resources, but we are talking about "Bitcoin addresses" here. If I call someone over the phone and tell them my bitcoin address, how are they going to get my IP? I might not even have an IP associated with that address at that moment in time as the private key for that address was generated offline and was never communicated outside said phone call.
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Im not really here, its just your imagination.
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gogxmagog
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Ad maiora!
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July 18, 2015, 10:35:10 PM |
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ok i filled the survey. I'd rather not leave my email, but im curious about the results and what you are using it for. maybe when you are finished you could post some info. thanks
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achow101
Staff
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Just writing some code
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July 18, 2015, 10:38:43 PM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true. --- But Gavin Andreson indeed notes that "Unless you are very careful in the way you use Bitcoin (and you have the technical know-how to use it with other anonymizing technologies like Tor or i2p), you should assume that a persistent, motivated attacker will be able to associate your IP address with your bitcoin transactions." --- i guess we should target that problem with a sidechain in the future Yes, its possible with transactions and a lot of motivation/resources, but we are talking about "Bitcoin addresses" here. If I call someone over the phone and tell them my bitcoin address, how are they going to get my IP? I might not even have an IP associated with that address at that moment in time as the private key for that address was generated offline and was never communicated outside said phone call. The moment you send a transaction from that address, the IP can be found. If someone connects to every single node in the network, then the node where the transaction first comes from is the node that owns that address, theoretically. This of course can be circumvented in many ways.
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criptix
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July 18, 2015, 10:45:01 PM Last edit: July 18, 2015, 10:57:10 PM by criptix |
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i think the survey is for a social science thesis so i guess no shame that op doesnt understand the technicals.
it is just about the anonymity of bitcoins and if users are mainly interested because of it.
*edit cant deduct ip address from bitcoin address - thats not possible. you can do that with transactions though!
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Possum577
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July 18, 2015, 10:49:17 PM Last edit: July 19, 2015, 05:03:22 AM by Possum577 |
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Usander, researchers come to this forum all the time asking for our time and insight. However they rarely share their findings with us (or pays us). Thanks for giving us the option - can you also post the findings to the forum so everyone can benefit?
I encourage all other community members to make the same requirement/request.
For a survey about anonymity you should provide results to everyone so ppl filling out your survey can remain anonymous (and not give you our email address as you request.)
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ACCTseller
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July 18, 2015, 11:09:20 PM Last edit: July 18, 2015, 11:46:23 PM by ACCTseller |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true. --- But Gavin Andreson indeed notes that "Unless you are very careful in the way you use Bitcoin (and you have the technical know-how to use it with other anonymizing technologies like Tor or i2p), you should assume that a persistent, motivated attacker will be able to associate your IP address with your bitcoin transactions." --- i guess we should target that problem with a sidechain in the future Yes, its possible with transactions and a lot of motivation/resources, but we are talking about "Bitcoin addresses" here. If I call someone over the phone and tell them my bitcoin address, how are they going to get my IP? I might not even have an IP associated with that address at that moment in time as the private key for that address was generated offline and was never communicated outside said phone call. There are plenty of ways to get a rough estimate of an IP address associated with a particular bitcoin address. - If you use electrum, then the electrum server that you connect to will both know your IP address and a complete list of addresses in your wallet.
- If you use a block explorer on the clearnet, then that block explorer will know what addresses you looked up and your IP address. They can further narrow down who owns a particular address by looking at who is looking at a particular address around the time transactions are sent to/from a particular address. They can also get an idea as to which IP address is associated with a bitcoin address by looking at who looks at multiple addresses that are either spend-linked together or are connected via cluster analysis, especially when someone looks at multiple addresses prior to the spend link or the cluster occurs.
- If you were ever to spend inputs from a particular address, then someone could look at who broadcast such transaction (this was mentioned previously)
- If blockchain analysis were to reveal that a particular service or exchange sent an address bitcoin, then an attacker could ask that service for the IP address of the person they sent the payment to
- Probably others that I cannot think of off the top of my head
Overall, I don't think this risk is very large because it will generally take a lot of resources to determine the IP address associated with a particular address, and the amount of resources required to "hide" the IP address is generally going to be low (use TOR). edit: I also took the survey
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oli123123
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Activity: 1445
Merit: 1000
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July 18, 2015, 11:13:03 PM |
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Just completed the survey, it's nicely done. I think it would be better for everyone if you share the results in this thread
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Possum577
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July 19, 2015, 04:48:27 AM |
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This question is misleading: How much BTC is on average on your Bitcoin account?
Post people don't have accounts (like one would for Xapo or Coinbase), most hold independent wallets and several of them. So if you want to know what the average amount is on someone's wallet you need to get more specific - alot of people have a wallet for spending, which would have a low average balance and others for saving their balance, which would have the higher average balance.
You could change the question to: How much BTC do you own on average?
Good questions and survey structure overall. Thanks.
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PenguinFire
Full Member
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Activity: 154
Merit: 100
That Darn Cat
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July 19, 2015, 04:55:43 AM |
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This question is misleading: How much BTC is on average on your Bitcoin account?
Post people don't have accounts (like one would for Xapo or Coinbase), most hold independent wallets and several of them. So if you want to know what the average amount is on someone's wallet you need to get more specific - alot of people have a wallet for spending, which would have a low average balance and others for saving their balance, which would have the higher average balance.
You could change the question to: How much BTC do you own on average?
Good questions and survey structure overall. Thanks.
This is very true . You make a good point. I will be happy to take your survey. Always good to see people studying bitcoin. Personally I only have 1.2 bitcoin at the moment. I made to sell one last week to pay a bill.
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Amph
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July 19, 2015, 08:39:48 AM |
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completed, the problem with those kind of surveys is that there is no way you can say that they are telling the true, someone or a group might fake it to tarnish bitcoin or other for praising it
i doubt many will respond sincerely to this "How much BTC is on average on your Bitcoin account?" for example...
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shorena
Copper Member
Legendary
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Activity: 1498
Merit: 1520
No I dont escrow anymore.
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July 19, 2015, 08:52:03 AM |
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Id like to get some more input on:
"Finding out the IP address via the Bitcoin address"
Some of the vulnerabilites sounds like you pulled them out of your behind (pardon my french).
Yeah, I've heard about this several times from newbies. However, I do not think that it is possible and thus have only answered as not concerned. AFAIK the only IP address that is visible is the one from the node that relayed the transaction, correct? There is also this 'claim', but it doesn't relate to normal users even if it was true. --- But Gavin Andreson indeed notes that "Unless you are very careful in the way you use Bitcoin (and you have the technical know-how to use it with other anonymizing technologies like Tor or i2p), you should assume that a persistent, motivated attacker will be able to associate your IP address with your bitcoin transactions." --- i guess we should target that problem with a sidechain in the future Yes, its possible with transactions and a lot of motivation/resources, but we are talking about "Bitcoin addresses" here. If I call someone over the phone and tell them my bitcoin address, how are they going to get my IP? I might not even have an IP associated with that address at that moment in time as the private key for that address was generated offline and was never communicated outside said phone call. There are plenty of ways to get a rough estimate of an IP address associated with a particular bitcoin address. - If you use electrum, then the electrum server that you connect to will both know your IP address and a complete list of addresses in your wallet.
- If you use a block explorer on the clearnet, then that block explorer will know what addresses you looked up and your IP address. They can further narrow down who owns a particular address by looking at who is looking at a particular address around the time transactions are sent to/from a particular address. They can also get an idea as to which IP address is associated with a bitcoin address by looking at who looks at multiple addresses that are either spend-linked together or are connected via cluster analysis, especially when someone looks at multiple addresses prior to the spend link or the cluster occurs.
- If you were ever to spend inputs from a particular address, then someone could look at who broadcast such transaction (this was mentioned previously)
- If blockchain analysis were to reveal that a particular service or exchange sent an address bitcoin, then an attacker could ask that service for the IP address of the person they sent the payment to
- Probably others that I cannot think of off the top of my head
Overall, I don't think this risk is very large because it will generally take a lot of resources to determine the IP address associated with a particular address, and the amount of resources required to "hide" the IP address is generally going to be low (use TOR). edit: I also took the survey Alright I guess I understand where they are hinting at, thanks. I would not put the "via TX" into that group though as this was listed as a seperate issue.
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Im not really here, its just your imagination.
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