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Do any high-profile merchants accept Litecoin?
Does Litecoin have anything like OP_RETURN?
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You can see your balances under the interest (or is it dividend?) section.
At least it shows for me.
The interest page doesn't show UNITY or MRKT balances. |
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I just logged into Bter for the first time since it came back online and it shows my "Total funds estimation" correctly but the only coins/currencies shown are USD, CNY, and NXT. I have UNITY and MRKT there. Are they saying when altcoins will be available to withdraw or at least see displayed?
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but the mixer interface will give some hint that the coins might have been sent using a blockchain wallet.
Not sure if it makes difference or if I'm too paranoid
No it doesn't actually. When you use shared send with blockchain's wallet it actually appears that the transaction was initially sent from some other node. Additionally their shared send is open source on github so anyone can actually implement it themselves yes, tried it myself , the transaction was sent from another node, so relax, but i wonder why would anyone use mixing services if it is use for a good purposes anyway So the people you're paying can't see the entirety of your holdings. It's like handing out your bank statement every time you pay someone in cash or credit card. |
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I'm sure to re-buy at Coinbase any amount I send from my main wallet to my spending mobile wallet. Easy.
That's the same way I approach things with BTC. If I do happen to spend any Bitcoin from Bitcoin Core wallet, I try to replenish it right away. Buy, HODL, spend, BUY, HODL, spend...I think I got that routine perfected now. Yep, with Coinbase, Circle, Buttercoin, it's really easy. |
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but the mixer interface will give some hint that the coins might have been sent using a blockchain wallet.
Not sure if it makes difference or if I'm too paranoid
I don't think I follow. What do you mean specifically? |
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Darkwallet looks great, but as their website says currently:
"IMPORTANT The wallet is Not Stable or Safe, and at this point you should use it with real money only at Your Own Risk."
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I'm sure to re-buy at Coinbase any amount I send from my main wallet to my spending mobile wallet. Easy.
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Is Blockchain.info the only wallet with an interface to a mixer (Shared Coin)?
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Do any of the others wallets have a built-in interface to a mixer?
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How can retailers you're buying from see your bitcoin balance?
They can't. They can only see the balance of the particular address you're paying from. Since any decent wallet will not re-use any address and generate new ones after every single transaction, the information they have is pretty much zero. With a little bit of work, anybody that knows an address in your wallet can determine a lower limit of the amount you have in the wallet at anytime. The more you reuse addresses, the closer that value is to the actual amount. Using a mixer will reduce the reliability of the value. I think that sums it up really well odolvlobo. Simply using an HD wallet affords little or no extra privacy. |
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Also Blockchain's Shared Coin uses CoinJoin which (from what I can gather) is a (nearly?) trustless method for mixing which gives it an advantage over a conventional mixing service or exchange.
I personally dont trust blockchain.info very much, so this might very well be bias on my end. Why is that? Is this a widely held opinion? |
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I think they don't provide privacy, the privacy is only provided by you being careful with your transactions
I think this sums it up well, and who wants to be careful with their transactions? Sounds inconvenient. Better to use some kind of a mixer. BTW, why don't the thieves just use a mixer, maybe a CoinJoin mixer? |
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I've been thinking over how to send and receive BTC without tying my main wallet to the transactions. Here's the best I can come up with:
- Open two Blockchain.info wallets, label one "public" and one "private".
- Always send BTC from my main wallet only to my private Blockchain wallet, never to my public Blockchain wallet or anywhere else.
- Always send BTC from my private wallet to my public wallet using Shared Coin (faster, less than total privacy) or Shared Send (slower, total privacy).
- Send BTC from my public wallet anywhere I want. If I don't want the destination to be known then I can use Shared Coin or Shared Send, but if it doesn't matter then I can use a regular send which is fastest.
- Receive BTC to my public account and send to my main account with Shared Coin or Shared Send.
I think this prevents my main wallet from being tied to my day-to-day transactions, especially if I use Shared Send instead of Shared Coin. Is there a better/easier way?
This should work, but I think you can skip the "private" wallet as it only acts as an intermediary between your "main" wallet and your "public" wallet. The idea behind this was probably that you have to use a bc.i account in order to use shared coin/send, but you can skip this step by using a mixing service or any other high volume wallet. E.g. a big casino/exchange could act as a mixer. The BTC you deposit is usually used for the withdrawal request from someone else and your withdrawal will come from an esentially random input from someone else as well. Another point that speaks for mixing serivce - be it an actual mixer or something that is just used as one - IMHO is that you can use different services from time to time. This will further complicate things for someone that is trying to make sense of your finances. So you're saying I could use a mixing service or an exchange in place of the "private" wallet? Why would that be better? Also Blockchain's Shared Coin uses CoinJoin which (from what I can gather) is a (nearly?) trustless method for mixing which gives it an advantage over a conventional mixing service or exchange. |
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Can anyone confirm this? None of the addresses can be derived by any of the other addresses? If that really is the case then my search is over.
No, not entirely. Old, simplistic wallets use one address for multiple transactions, both sending and receiving. This is obviously bad for your privacy (and somewhat bad for other, more technical reasons as well). HD wallets do this: You have some coins on address A. When spending coins, you send them to merchant X, and the change (leftover) goes to a new address B. When spending coins the next time, you send them to merchant Y, and the change goes to a new address C. And so on. New HD Wallet addresses A, B, C, etc are generated on the fly upon every transaction (incoming as well as outgoing). So, they are only linked to a certain extent. If you have 100 BTC on address A, and spend small amounts (e.g. 0.4 BTC, 0.3 BTC etc) with the change (e.g. 99.6 BTC, 99.3 BTC, etc) going to address B and C, someone can sortof guess that A, B and C probably belong together. However if you keep small amounts in your wallet, like 1 BTC, and you spend 0.4 BTC, meaning 0.4 BTC will go to X and 0.6 BTC will go to B, people can't tell for sure which was yours: X or B? (did you spend 0.4 or 0.6?) And so on - the more transactions you do, the less likely someone is to still link it together with any degree of certainty. Within a few cycles, the expanding transaction tree becomes unmanagable and nobody will be able to tell your addresses apart from others. If you absolutely, positively need to be 100% certain nobody can link your addresses, use a mixer. This is very easy, but not free (mixing services charge a small fee). However, in practice, you shouldn't worry about this at all. Just put small amounts on your wallet, by the time it's almost empty, add a little extra from your savings, and so on. Really, nobody will know or care. Let's say I have 100BTC in my main wallet and I want to pay people without them knowing about my main wallet. How will an HD wallet help? I could transfer small amounts from my main wallet to my HD wallet, but when I pay someone from my HD wallet, the inputs will come from an address funded by my main wallet every time. |
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Actually, does using an HD wallet accomplish the same thing?
To answer my own question, no, not at all. |
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Do BIP 32 hierarchical deterministic wallets provide true privacy so that none of the transactions to or from the HD wallet can be linked together?
No, the idea behind HD wallets is that you only have to create a single backup. The transactions are made the same with other wallets. If the wallet you are using allows you to craft them by hand you might be able to achieve this, but this has nothing to do with HD or not. Got it, I didn't understand that before. I'm mainly interested in preventing everyone I pay from linking me to my main BTC wallet.
Use a mixer. If a wallet uses a different address for each transaction, how can the addresses/transactions be linked to each other? |
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Every bitcoin wallet does use a new address for each transaction by default.
Can those addresses/transactions be linked to each other by examining the blockchain? |
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Do BIP 32 hierarchical deterministic wallets provide true privacy so that none of the transactions to or from the HD wallet can be linked together? I'm mainly interested in preventing everyone I pay from linking me to my main BTC wallet.
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Thank you for enlightening me.
