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 Post subject: Re:
PostPosted: Mon Jun 13, 2011 4:39 pm 
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Nevandal wrote:
Check it out...

http://www.btcbuy.info/

They sell Amazon / Newegg gift cards for BTC.


That's pretty cool. I expect there'll be more sites like this that make it easier to use Bitcoins.


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 Post subject: Re: Bitcoin mining
PostPosted: Mon Jun 13, 2011 6:20 pm 
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So what is bitcoin actually generating/doing? Just generating Thousands of Hashmarks and randomly passing out BitCoin pieces? Or is it doing something productive like Seti?

Being able to buy Amazon giftcards with BitCoin is starting to intrigue me, my roomate's co-workers have been ranting and raving about BitCoin for months and building pc's for the sole purpose of Mining...

Is that really it? Just run BitCoin generate Coins and buy stuff?!? I fail at economics and this doesnt make sense to me....


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 Post subject: Re: Bitcoin mining
PostPosted: Mon Jun 13, 2011 7:17 pm 
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Kashan wrote:
So what is bitcoin actually generating/doing? Just generating Thousands of Hashmarks and randomly passing out BitCoin pieces? Or is it doing something productive like Seti?

Being able to buy Amazon giftcards with BitCoin is starting to intrigue me, my roomate's co-workers have been ranting and raving about BitCoin for months and building pc's for the sole purpose of Mining...

Is that really it? Just run BitCoin generate Coins and buy stuff?!? I fail at economics and this doesnt make sense to me....


If you want to, you can just run Bitcoin to generate coins and buy things. It's a new form of currency, you can do what you want with it, just like with any money. It has its advantages and disadvantages.

It's doing something "productive" in that it's maintaining the Bitcoin network, which is used by people to trade and buy stuff, kind of like servers that hold up any fiancial service except decentralized. I agree that most of the CPU goes to waste. The SETI program hasn't found any aliens though, right?


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PostPosted: Tue Jun 14, 2011 1:28 pm 
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Person had 25k BTC hacked out of his account: https://forum.bitcoin.org/index.php?topic=16457.0

Be careful.


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PostPosted: Tue Jun 14, 2011 1:30 pm 
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Wow, that's a lot. In any case I keep my wallet file in a Truecrypt file.

edit:

This guy was mining in mid-2010... virtually nobody was mining back then, I bet 10-20 people. He racked up so many coins.


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PostPosted: Wed Jun 15, 2011 4:45 pm 
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Until there is some kind of fraud protection available, I doubt this will ever become serious.


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PostPosted: Wed Jun 15, 2011 5:11 pm 
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Yeah, it definitely needs better security

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 Post subject: Re:
PostPosted: Wed Jun 15, 2011 7:03 pm 
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Midgen wrote:
Until there is some kind of fraud protection available, I doubt this will ever become serious.


I imagine that eventually there could be trusted websites which offer fraud protection and manage your account. Right now, it is incredibly not user-friendly and perilous.


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PostPosted: Fri Jun 17, 2011 4:11 pm 
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Lex Luthor wrote:
Wow, that's a lot. In any case I keep my wallet file in a Truecrypt file.



I think because bitcoin is a decentralized internet commodity, similar to a digital version of gold, you have to take your own precautions. Just like if you were to own gold or some other physical commodity you would get a safe or store it in some secure location, you should take similar precautions and encrypt/backup your wallet.dat file. I'm looking into various methods to encrypt / back up my wallet more securely.

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 Post subject: Re: Re:
PostPosted: Fri Jun 17, 2011 4:28 pm 
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Nevandal wrote:
Lex Luthor wrote:
Wow, that's a lot. In any case I keep my wallet file in a Truecrypt file.



I think because bitcoin is a decentralized internet commodity, similar to a digital version of gold, you have to take your own precautions. Just like if you were to own gold or some other physical commodity you would get a safe or store it in some secure location, you should take similar precautions and encrypt/backup your wallet.dat file. I'm looking into various methods to encrypt / back up my wallet more securely.


The "simplest" way to do it is to store the wallet in an encrypted archive using a program such as Truecrypt. I put it in quotes because it's only simple if you already know how to do it.

The most effective way, if you want to be 99.999% secure, is to use a dedicated, clean computer to do all Bitcoin transactions. Never use your web-browser where you can possibly get viruses. Only use this computer for Bitcoin purposes. Also backup the encrypted wallet onto USB, and backup an encrypted version into your email.


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PostPosted: Fri Jun 17, 2011 5:47 pm 
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When I first saw this I was very skeptical but it seems to have some validity to it. Decent write-up here. I'm still trying to get a handle on how the scheme is protected from, say, a wide-spread virus. Very interesting.


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 Post subject: Re:
PostPosted: Fri Jun 17, 2011 7:44 pm 
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Deeger wrote:
When I first saw this I was very skeptical but it seems to have some validity to it. Decent write-up here. I'm still trying to get a handle on how the scheme is protected from, say, a wide-spread virus. Very interesting.


People choose which client to download. As long as most of the clients are good then the integrity is fine.


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PostPosted: Sun Jun 19, 2011 5:28 am 
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Mining has been going much more slowly than I thought it would. I'm just under 3 BTC mined.

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 Post subject: Re:
PostPosted: Sun Jun 19, 2011 10:53 am 
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Nevandal wrote:
Mining has been going much more slowly than I thought it would. I'm just under 3 BTC mined.


Mining is currently much less profitable than it used to be, for short-term selling. This is because the difficulty is rising faster than the price.


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PostPosted: Sun Jun 19, 2011 1:22 pm 
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Wow...someone must've just sold a few hundred thousand dollars worth of bitcoins on mtgox, and didn't use the dark pool. He probably could've made a little over $1 Million if he used the Dark Pool.


Price plummeted, lowest was 1 cent, but only for a split second.

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Last edited by Nevandal on Mon Jun 20, 2011 4:15 am, edited 1 time in total.

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PostPosted: Sun Jun 19, 2011 2:16 pm 
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Quote:
Huge Bitcoin sell off due to a compromised account - rollback

Mark Karpeles
posted this on Jun-20 04:07

The bitcoin will be back to around 17.5$/BTC after we rollback all trades that have happened after the huge Bitcoin sale that happened on June 20th near 3:00am (JST).

Service should be back by June 20th 10:00am (JST, 01:00am GMT) with all the trades reversed and accounts available.

One account with a lot of coins was compromised and whoever stole it (using a HK based IP to login) first sold all the coins in there, to buy those again just after, and then tried to withdraw the coins. The $1000/day withdraw limit was active for this account and the hacker could only get out with $1000 worth of coins.

Apart from this no account was compromised, and nothing was lost. Due to the large impact this had on the Bitcoin market, we will rollback every trade which happened since the big sale, and ensure this account is secure before opening access again.



wow...

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Last edited by Nevandal on Mon Jun 20, 2011 4:15 am, edited 1 time in total.

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PostPosted: Sun Jun 19, 2011 5:09 pm 
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What exactly is a bitcoin? It doesn't seem like a real thing to me.

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 Post subject: Re:
PostPosted: Sun Jun 19, 2011 6:03 pm 
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Micheal wrote:
What exactly is a bitcoin? It doesn't seem like a real thing to me.


It's digital currency that can't be counterfeited, and isn't controlled by anything centralized.


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 Post subject: Re: Re:
PostPosted: Sun Jun 19, 2011 9:57 pm 
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Lex Luthor wrote:
Micheal wrote:
What exactly is a bitcoin? It doesn't seem like a real thing to me.


It's digital currency that can't be counterfeited, and isn't controlled by anything centralized.

Then how did all the transactions get rolled back?

I don't think it works the way it was advertised.

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PostPosted: Mon Jun 20, 2011 2:35 am 
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The transactions on Mt. Gox will be rolled back, not the bitcoin network itself.

The issue with this is people who withdrew their bitcoins after making a Mt Gox transaction that will be rolled back. It will be interesting to see how that plays out.

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PostPosted: Mon Jun 20, 2011 4:36 am 
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Pretty cool video of the market crash happening live...



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 Post subject: Re: Re:
PostPosted: Mon Jun 20, 2011 7:47 am 
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Taskiss wrote:
Lex Luthor wrote:
Micheal wrote:
What exactly is a bitcoin? It doesn't seem like a real thing to me.


It's digital currency that can't be counterfeited, and isn't controlled by anything centralized.

Then how did all the transactions get rolled back?

I don't think it works the way it was advertised.


They weren't transactions. They were stored on the trading site. Nothing was sent through the Bitcoin network.


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 Post subject: Re:
PostPosted: Mon Jun 20, 2011 8:00 am 
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Nevandal wrote:
The transactions on Mt. Gox will be rolled back, not the bitcoin network itself.

The issue with this is people who withdrew their bitcoins after making a Mt Gox transaction that will be rolled back. It will be interesting to see how that plays out.


I wonder if the added publicity will overcompensate for the bad PR. The worst thing that could happen to Bitcoin is obscurity IMO. If the value does go down, it's a great time to buy, since the actual Bitcoin network and protocol is still just as sound. This is just a matter of website management incompetence. Time will tell of people understand this because there is a lot of misinformation out there. Bitcoins have been fascinating to follow and it wouldn't surprise me if there's more dramatic news stories.


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PostPosted: Mon Jun 20, 2011 8:31 am 
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Nevandal wrote:
The transactions on Mt. Gox will be rolled back, not the bitcoin network itself.

The issue with this is people who withdrew their bitcoins after making a Mt Gox transaction that will be rolled back. It will be interesting to see how that plays out.

Your said (before the edits) that your transaction was rolled back after your purchase. Call it what you will, you've been controlled by a central authority.

You did nothing wrong, you didn't manipulate the market. You were screwed. "The network" should have recorded the transaction and you should have received what you purchased had the exchange site honored it's obligation.

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 Post subject: Re: Re:
PostPosted: Mon Jun 20, 2011 10:27 am 
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Taskiss wrote:
Nevandal wrote:
The transactions on Mt. Gox will be rolled back, not the bitcoin network itself.

The issue with this is people who withdrew their bitcoins after making a Mt Gox transaction that will be rolled back. It will be interesting to see how that plays out.

Your said (before the edits) that your transaction was rolled back after your purchase. Call it what you will, you've been controlled by a central authority.

You did nothing wrong, you didn't manipulate the market. You were screwed. "The network" should have recorded the transaction and you should have received what you purchased had the exchange site honored it's obligation.


Your money was stored on Mtgox.com. It was traded within the databases of Mtgox - it never entered the Bitcoin network.

I'll give a simple example.

Person A has 500 Bitcoins in an account at Mtgox.com
Person B has 300 Bitcoins in a separate account.

Person A gives person B 200 Bitcoins.

Mtgox does a subtraction operation on Person A's account (500 - 200), and updates their database. They then modify Person B's entry to add 200 Bitcoins. Do you understand now? I thought you've worked with databases before?

If you give Bitcoins to Mtgox.com to manage, they can do whatever they want with it. If you don't like mtgox.com rolling back transactions internally within their website, then don't give money to them.


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