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221  Bitcoin / Development & Technical Discussion / Re: Taint checker list on: March 06, 2012, 06:43:52 PM
There are two possibilities for tainting: either when coins are mixed together, all of them are tainted, or just the tainted amount that was put in.

The first one has the problem of spreading like a disease.  Whenever someone accidentally accepts tainted coins, it taints all of their other coins.  Someone with tainted coins who did not realize this could spread taint to 100x the # of coins that were tainted to start.

The second one has the problem of being able to create a plausible deniability that you have in your possession any stolen coins. 

Say you have 9 stolen coins, and 1 legit coin.  You mix the coins together, and send 1BTC to each of 10 addresses.  Each of those addresses can plausibly argue, "This is the clean coin, the other 9 are tainted". 

Now, say the police have all 10 recievers in a room.  Which Bitcoin should they confiscate?  0.1 from each person?  1BTC from a random one?  There is no just way to reclaim the stolen material once it has been mixed like this.
222  Bitcoin / Bitcoin Discussion / Re: The Ultimate Dilemma on: March 06, 2012, 07:41:27 AM
I think investigating perceived wrongdoing in the Bitcoin community is a good thing.  Though the bitcoin universe is anonymous, on this forum reputation is extremely important: because with irreversible payments trust is crucial.  

We can't squeeze the fuckheads out of using bitcoin whatsoever, but we can ostracize them, dox them, and somewhat prevent them from making money off naive people.  I think it is a good thing, and I think exposing fuckheads is actually pretty fun.  We should try to set a shining example of how moralistic and conscientious bitcoin users are: not because of what the law says, but because without law it frees us to do what we believe is right, for the right reasons.

If you are having a good time, keep going.  If it is making you miserable (seems like it is causing an existential crisis), I would say let it be and do something else.

And seeing as how you are feeling down...


Epic.

EDIT: My official response:



Nice...
223  Bitcoin / Project Development / Re: New RetroShare Bitcoin Forum on: March 06, 2012, 06:46:03 AM
There is a $1 Bitcoinica redeem code in my shared folder for the first person to connect with me ;-)

filename: "BitcoinicaCode.txt"

224  Bitcoin / Bitcoin Discussion / Re: The Ultimate Dilemma on: March 06, 2012, 06:38:41 AM
I think investigating perceived wrongdoing in the Bitcoin community is a good thing.  Though the bitcoin universe is anonymous, on this forum reputation is extremely important: because with irreversible payments trust is crucial. 

We can't squeeze the fuckheads out of using bitcoin whatsoever, but we can ostracize them, dox them, and somewhat prevent them from making money off naive people.  I think it is a good thing, and I think exposing fuckheads is actually pretty fun.  We should try to set a shining example of how moralistic and conscientious bitcoin users are: not because of what the law says, but because without law it frees us to do what we believe is right, for the right reasons.

If you are having a good time, keep going.  If it is making you miserable (seems like it is causing an existential crisis), I would say let it be and do something else.

And seeing as how you are feeling down...
225  Bitcoin / Project Development / Re: New RetroShare Bitcoin Forum on: March 06, 2012, 05:58:03 AM
Thanks, that was it.

Here is my certificate
Code:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.9 (MingW32)
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=VKRy
-----END PGP PUBLIC KEY BLOCK-----
--SSLID--3dee29caa588dd496e2d6aae5e40fc48;--LOCATION--Obelisk;
--LOCAL--192.168.1.127:55655;--EXT--24.18.204.215:55655;

I have added everyone who has posted here.
226  Bitcoin / Project Development / Re: New RetroShare Bitcoin Forum on: March 06, 2012, 05:00:29 AM
When I try to use the Add a Friend Wizard:
- I select "manual"
- I copy Andrew Bitcoiners code from his codebox
- I paste the certificate exactly into the box
- I get the message: "Certificate load failed: Certificate is corrupted."

It seems like all of you are able to do this without any problems.  Any clue why its not working for me?
227  Bitcoin / Development & Technical Discussion / Re: Taint checker list on: March 06, 2012, 02:55:21 AM
You cannot prevent people from transferring coins to your address.  So people who disagree with the tainted coins system could browse the blockchain for "clean" addresses, and do giant batch transactions sending each address a satoshi.

If they are mining as well, they can include the transactions in their own blocks, so transaction fees for sending large, spammy transactions will be sent back to themselves. 

You only get the transaction fee if you are the miner that actually finds the block. Otherwise someone else gets it. This mechanism protects Bitcoin from spam attacks disrupting the network. Otherwise a malicious attacker could try to spam the network with millions of transactions. The transaction fees make this too expensive to pull off. So no, somebody isn't going to perform an attack like that.

Quote
If you send these satoshis back, you will still have to pay the transaction fee: they can make your coins tainted, or make you go broke trying to prevent them from being tainted.

The Bitcoin protocol allows you to specify the number of and the precise transaction inputs to use in a transaction. Meaning if you sent me 10,000 satoshis from 10,000 different wallets, I could send them all back to you in a single transaction, and *only* those satoshis regardless of the other coins in my wallet. Or, I could (one day) simply blacklist those transaction inputs so my client never uses them. Meaning that the tainted coins die right there. They never get used, they are out of circulation, and the rest of my coins are pristine. If you follow the coins via the blockchain they will simply stop at that address. Bitcoins are atomic, they have to be or the entire system falls apart. You can trace every single satoshi in your wallet all the way back to its genesis block.

 

As a miner, you can hoard a transaction.  So you could create a transaction that does not get broadcast unless your miner finds it, in which case it goes through.

I was talking about sending 10,000 satoshis to 10,000 clean addresses, rather than what you are saying, because I think this sort of "shotgun spray" would be much more effective at tainting.

As for the last part of your response, that is entirely true.  But with current software there is a high chance of making a mistake and accidentally sending the tainted satoshi through, tainting your target recipient.

Dooglus is right though: a smart implementation of taint could prevent many of these problems by tainting transaction outputs rather than whole addresses. 
228  Bitcoin / Development & Technical Discussion / Re: Avoiding theft using trusted computing on: March 06, 2012, 12:14:25 AM
This sounds promising.  Subscribing.
229  Bitcoin / Development & Technical Discussion / Re: Taint checker list on: March 06, 2012, 12:10:10 AM
You cannot prevent people from transferring coins to your address.  So people who disagree with the tainted coins system could browse the blockchain for "clean" addresses, and do giant batch transactions sending each address a satoshi.

If they are mining as well, they can include the transactions in their own blocks, so transaction fees for sending large, spammy transactions will be sent back to themselves. 

If you send these satoshis back, you will still have to pay the transaction fee: they can make your coins tainted, or make you go broke trying to prevent them from being tainted.
230  Bitcoin / Legal / Re: Are Bitcoins Securities Under U.S. Law? on: March 05, 2012, 11:45:46 PM
Because the private keys can be in many places at once, they don't have a location until someone "spends" one. It's like quantum money.

This is a very interesting sentence.  Thanks.
231  Bitcoin / Legal / Re: Running an instawallet clone = legal? on: March 05, 2012, 10:56:46 PM
Another possible risk is if your service loses/steals your customers' bitcoins, you could be liable.

Unfortunately, until someone is taken to court, we won't have a definitive answer to your question.
232  Bitcoin / Project Development / Re: New RetroShare Bitcoin Forum on: March 05, 2012, 09:11:31 PM
Interesting...
233  Other / Beginners & Help / Re: Selling League of legends 200 referals 2 months cheap! on: March 05, 2012, 08:08:38 PM
This is taking money directly out of the pockets of the Riot team.  If you want Riot points, why don't you give your money to Riot rather than some random guy?
234  Economy / Speculation / Re: WTF is happening on bitcoinica ? on: March 05, 2012, 07:49:32 PM

98% hedge at 6k volume Huh? i dint see that hedge percentage even when the volume was next to 100 000

Z your capital is running away ? why i dont stick whit keeping all the moneys on mtgox ?

Where do you find this on the site?
235  Bitcoin / Project Development / Re: [Bounty: 2 BTC] Run a test store using the osCommerce Bitcoin Payment module on: March 05, 2012, 07:09:40 PM
What is the license on this software? 

Looks cool!  Interested in seeing the store when it is up.
236  Bitcoin / Development & Technical Discussion / Re: Taint checker list on: March 05, 2012, 06:03:30 PM
D&T's post is spot on.  There are too many unsolvable problems that taint tracking introduces: it will hurt honest actors more than thieves.
237  Other / Off-topic / Re: If you put your finger in your ear and scratch... on: March 03, 2012, 06:33:22 AM
If you put your finger in your ear and scratch, it sounds like PacMan.
lol
238  Economy / Goods / Re: [WTS] House (Erie, PA, USA) on: March 03, 2012, 06:27:34 AM
What do you mean by "Willing to accept as payment or finance up to $3,000 in Bitcoin!"

Will you only accept 2% of the purchase price in bitcoin?  That isn't exactly selling a house for bitcoin...
Never claimed to be. I'm willing to accept up to 2% of purchase price in BTC, yes. I am not the sole owner of the house and want to purchase another house soon. AFAIK, the bank selling the house I'm looking at isn't willing to accept BTC. Tongue

Still, a first step toward BTC-denominated mortgages.  Grin

Reread the thread and yep, you are right.  The peanut gallery caused me to misunderstand.
239  Economy / Marketplace / Re: coinexchanger.com is now the 2nd exchange with the most BTC Liquidity on: March 03, 2012, 03:11:37 AM
You are really claiming that you are the 2nd most liquid exchange, when your bid/ask spreads are currently $0.90?  Do you know what liquidity means?

Nefario, this was directed at CoinExchanger.  I have confidence that Intersango is in fact the 2nd largest exchange.
240  Other / Beginners & Help / Re: COINEXCHANGER. WHATS GOING ON? on: March 03, 2012, 12:51:17 AM
WITHDRAW YOUR FUNDS ASAP!

CoinExchanger has a poor reputation on these forums, and some have suggested legal actions being brought against them.  If they were going to disappear, it might be soon.  Get your money out if you still have it there!  It is not a secure place to keep deposits right now.
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