Questions regarding how much information is revealed through crypto-currency transactions or related issues about minimizing or analyzing transactions to identify their sources and other properties.

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0
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1answer
21 views

What are some valid ways to obfuscate the scriptPubKey?

Is it possible to hide the balance of an address from standard clients who may be watching blockchain? I'm thinking about using script to modify the the key that is to be verified, but am having ...
0
votes
1answer
99 views

Does Blockchain.info track IP addresses?

I use Blockchain.info for my wallet, I use a secure anonymous email address. My name and identifying information is never connected with my bitcoin, is it anonymous? How can I keep my bitcoin ...
0
votes
0answers
13 views

For greater anonymity, should I split my payments into multiple addresses (in the same Tx or different Tx)?

Normally when people pay an individual, they pay directly to a single Base58 address. I would think that it would allow for greater anonymity if instead of paying one address, I would split that ...
3
votes
1answer
43 views

Can ISP intercept network messages to identify the IP of the transaction issuer?

Suppose my ISP is intercepting the bitcoin protocol communication. By analyzing traffic in the network, he could be able to determine that some transaction propagates from my IP (as there is no record ...
1
vote
2answers
172 views

Is it possible to know my ip address by simply connecting to the Bitcoin network?

It is saying that in order to stay anonymous, it is usefull to use Tor whenever connecting to the Bitcoin network. How does someone can discover my ip adress if I'm simply connecting to the bitcoin ...
1
vote
2answers
92 views

How can using Bitcoin with Tor improve privacy?

As far as I understand Bitcoin, user privacy and anonymity are hard to guarantee in the presence of multi-input transactions and shadow addresses. Some sites suggest using Tor to hide the source of a ...
2
votes
1answer
42 views

Anonymity while sending payment

Bitcoin wallet has the option of creating a new wallet address for receiving payment. What about for sending? Isn't my "From" address always going to be the same?
5
votes
1answer
236 views

What is a stealth address?

Stealth addresses are mentioned in the context of privacy of bitcoin transactions. What are they and how would they work? Can they provide 100% anonymity?
3
votes
2answers
126 views

How can I tell whether transactions were (not) made via BitPay / Coinbase?

Background Recently, Rep. Steve Stockman posed for a photo op with his Bitcoin address on a big QR code, which got shared. He has a Bitcoin donation page which asks for identifying info and goes ...
3
votes
3answers
85 views

What if you wanted to decrease anonymity?

My idea is to be able to build "credit" for an individual. Lenders of BTC could just use a service to check the "credit score" of a certain address of a borrower. The borrower would have to spend a ...
1
vote
1answer
122 views

How did Silk Road work when it came to delivering product anonymously?

A lot of times, people say Bitcoin is anonymous, but I know most transactions can be easily traced using IPs that used ewallets and by making connection with other bitcoin addresses. So with that in ...
2
votes
2answers
260 views

Is the news story about the missing hard drive containing £4 million GBP of Bitcoins technically feasable?

I'll admit to being a complete newbie to Bitcoins. The whole thing has up until now passed me by, until my interest was peaked by this news story about a gentleman in the UK who supposedly threw away ...
2
votes
0answers
56 views

What metadata can be captured by a single miner? What about a group of miners?

It is my understanding that the blockchain consist of the following information for every transaction in the network: From address To address Amount of bitcoins What additional information can a ...
2
votes
0answers
203 views

Do we know who runs the big mining pools?

After looking at the hashrate repartition https://blockchain.info/fr/pools. It seems to me that bitcoin is quite centralized, and that two big actors (mining pools company who run the bitcoind server) ...
4
votes
3answers
529 views

can someone explain to me how coinjoin works for anonymity in plain english without all the tech jargon?

I just learned about coinjoin, but i dont really understand all the jargon being thrown around. Can someone explain how this works where a 10 year old can understand?
1
vote
2answers
53 views

Payment Protocol: Is using different addresses for refunds just because of privacy?

One of the features of the new payment protocol is that it allows the customer's wallet to automatically send a refund address with the transaction to the merchant. Why would the refund not be sent ...
3
votes
1answer
103 views

What are the specific problems that Virtual Currency is solving? (in the Banking system, economics, and finance )

What is Virtual Currency is trying to solve, and how is it trying to solve them? Many users of virtual currency (BTC, XRP, etc) talk about a corrupt banking system, and many other ideals, but I'd ...
0
votes
1answer
45 views

Would it be possible to make Trophys / Achievements from bitcoin experience

One Trophy could be: "First output signed" And many more milestones on the road to the more advanced usages of the network: "First multisign/multispend", "First completed ANYONECANPAY transaction" ...
1
vote
1answer
273 views

What are the “Know Your Customer” challenges that Bitcoin faces?

Can anyone explain what KYC (Know Your Customer) regulations are "missing", tough or impossible to implement with Bitcoin? I will offer a bounty to the most detailed answer (However this question is ...
0
votes
1answer
57 views

Large pool of addresses means more anonymous? how?

For an average end-user, if bitcoin-qt is configured with a large pool (1 billion) of Bitcoin addresses, then will it increase user / transaction anonimity?
4
votes
2answers
3k views

Anonymizing bitcoins? [duplicate]

Is there any way to anonymize bitcoins? It doesn't need to be AML-proof, or even completely anonymize their source, I'd just like to obfuscate the source of the bitcoins more effectively than sending ...
1
vote
0answers
286 views

Anonymous (no ID, no verification) Payments to PayPal?

Not looking for a discussion on how Bitcoin payments can be traced and it's not truly anonymous. I'm not looking for total anonymity, I just don't want the merchant or payment processor to identify ...
5
votes
1answer
154 views

Is an exchange a good substitute for a mixing service?

Isn't an exchange such as MtGox essentially a mixing service? I might be wrong, but can somebody trace coins when they are paid to one address, possibly exchanged, and another amount is paid back from ...
3
votes
1answer
191 views

Where is the bitcoin automatic address generation?

I have head of the automatic bitcoin address generation feature for every transaction. I have done multiple transaction, but I still have the same addresses (I have two addresses). I would like to ...
0
votes
1answer
129 views

Which method is preferable: sender to send Bitcoins to eWallet/mixer first or to wallet on the PC?

Suppose a friend wishes to send some Bitcoins to me. In terms of anonymity, which of the following would be preferable? Have the Bitcoins sent to an eWallet/mixer first and then I withdraw them to ...
5
votes
2answers
2k views

Sending Bitcoins through Tor versus sending them through VPN

I bought a VPN subscription using Tor and Bitcoins. The commercial VPN service provider does not know who I am. Below are my questions: Could someone tell me whether sending Bitcoins through Tor ...
1
vote
1answer
1k views

Which Bitcoin mixer has the largest pool of customers? [closed]

As the title of the post states, which current Bitcoin mixer has the largest pool of customers? I understand that the larger the customer base of a Bitcoin mixer, the more anonymity the mixer will ...
1
vote
0answers
69 views

Are we anonymous against governments? [duplicate]

If all transactions are public knowledge and coins are identifiable and thus traceable. With the power of subpoena can't a government uncover who bought the coin(s) from an exchange. It might be ...
15
votes
2answers
1k views

Does the ZeroCoin protocol fulfill its promise of anonymity?

Zerocoin is a new cryptographic extension to Bitcoin that (if adopted) would bring true cryptographic anonymity to Bitcoin. Has anyone seriously analyzed the protocol and verified it works as ...
1
vote
2answers
135 views

Why is anonymity important in bitcoins? [closed]

Before I get started I would like to say I am an advocate of a virtual, peer to peer currency and bitcoins to an extent. I think some of the worst aspects of capitalism as well as huge amounts of ...
1
vote
1answer
201 views

Measuring levels of spammer participation on the Bitcoin network

Is there any reliable way of estimating the number of spammer controlled miners? I was thinking about the common wisdom that BitCoin should have been implemented with a hashing mechanism that is ...
3
votes
1answer
597 views

How can one remain relatively anonymous while using Ripple?

Inspired by this and that. What can an individual that uses Ripple do in order to remain as anonymous as possible? How do Ripple's "anonymity profile" compare to Bitcoin? One specific difference is ...
-1
votes
1answer
2k views

Running Multibit on Tails - connecting error [closed]

I'm trying to get Multibit wallet set up on my new Tails USB. It's up and running, but isn't able to connect to the internet. It just says "Connecting" in red. The message log says this - ...
3
votes
1answer
364 views

Have there been case studies of how anonymous bitcoins are?

The blockchain has a lot of information about all bitcoin transactions. I've heard a lot of conjecture about how anonymous bitcoins transactions are, but I haven't seen a scientific study. Are there ...
1
vote
0answers
68 views

How difficult is it to determine the owner of some bitcoins? [duplicate]

When Bitcoin was making the media waves back in 2011, a lot of it focused on the anonymity aspect of bitcoins, the hacks, and the illegal contents of the silk road onion address. From my limited ...
3
votes
1answer
73 views

Do the various Ripple clients leak any data about account names?

If I use the official client at Ripple.com, and add someone to my contact list ... does the information "I believe that X's Ripple address is Y" get stored anywhere in unencrypted form? Is it ...
9
votes
1answer
155 views

What are the privacy implications of filtered blockchain downloads?

There is now "Bloom filter" support in the network protocol for sending only relevant transactions to lightweight clients. What are the privacy implications of the bloom filter? Does it leak any ...
5
votes
3answers
343 views

Easiest way to set up non computer-literate person with Bitcoin

What would be the easiest/quickest way to get somebody who isn't computer-literate set up to have the ability to transfer money to me via Bitcoin? Also, Bitcoin touts that it is anonymous. Is it any ...
0
votes
1answer
230 views

Instawire fees over Bitcoin Central fees and their respective KYC policies?

Instawire, Bitcoin-Central, Instawallet, Paytunia and Paymium are seem to be closely related, they cross reference each other on their sites, though their respective guarantees for their services are ...
9
votes
2answers
535 views

Anonymity through paying by bitcoin

I am considering the VPN service Privateinternetaccess. One of it's payment methods is bitcoins. As described on this page paying with bitcoins strengthens anonymity. In contradiction, this page ...
5
votes
2answers
679 views

Is it possible to view others' transactions in bitcoin client?

This seems like a really basic question, but I'm having trouble searching for answers on it. My understanding is that my bitcoin client (Bitcoin v0.7.1-beta) has basically theoretically downloaded the ...
3
votes
2answers
509 views

Are there mixing services or online wallets that are explicitly compliant with anti-laundering laws?

I'm interested in mixing services (0% taint) that are compliant with the most conservative anti-money laundering laws. My goal is to have anonymity between peers in a transaction, but to remain ...
4
votes
2answers
58 views

Is there an application or a site grouping addresses by user graphically?

Addresses can be grouped as belonging to the same user (or, better, same "account") by grouping together the addresses that participate as inputs to a single transaction, and doing it transitively. ...
5
votes
2answers
300 views

Is it possible for a decentralized currency to have untraceable transactions?

I have been reading a bit about Bitcoin recently and am fascinated with the project and think it has great potential. However, one thing I think it needs in order to gain mass popularity is to make ...
4
votes
1answer
560 views

Bitcoin mixing and transaction sizes

I'm pretty clear on how a Bitcoin mixer obscures transaction history, but I don't understand how an observer is not able to reasonably link the source and destination wallets simply based on the ...
5
votes
1answer
265 views

How does Blockviewer work? (tool to discover identities of “anonymous” bitcoin transactions)

I'm trying to follow the logical sequence of how blockviewer works and only see this one blog entry for the process, but no "part 2". Can someone describe the techniques to link a wallet address to ...
6
votes
1answer
209 views

Vouching for (or against) the reputation of a bitcoin user

Since it's possible to link non obfuscated transactions to a "user" does is make sense, or it is possible for anonymized users with an established transaction history to "vouch" for another? I'm ...
3
votes
4answers
3k views

How do I pay for something anonymously from the UK using bitcoins?

I've seen the following guide but it's no good as I can't use bitinstant from the UK. Can someone recommend an alternative? Step 1. Download and install TOR Step 2. While using TOR create a Tormail ...
6
votes
1answer
2k views

How can one be truly anonymous without mining?

Assume that person wanting to be anonymous has reason to do so. Powerful enemies will see what is bought with bitcoins, perhaps web blog on server and domain name. Even in nations with rule of law, ...
5
votes
2answers
363 views

Can a miner remain anonymous?

Can you differentiate the miners from the normal clients, by doing some frequency analysis on ip-addresses that announce new blocks? Or will the new block propagate so fast around the network by ...