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195K Bitcoin Transaction

First time accepted submitter saidi writes "The Washington Post reports that yesterday a truly massive Bitcoin transaction occurred, from the article: 'In this particular transaction, bitcoins from 15 different Bitcoin addresses were consolidated and sent to address 12sENwECeRSmTeDwyLNqwh47JistZqFmW8. The size of the transaction? 194,993 bitcoins. Given that one bitcoin is worth around $800 right now, the transaction is valued at more than $150 million.'" A researcher did a bit of digging, and it appears that this was the Bitstamp exchange moving their balance around (business appears brisk).

21 of 167 comments (clear)

  1. Ghost transactions by girlintraining · · Score: 5, Insightful

    This is an excellent example of traffic analysis and how you can leak your identity based just on the nature of the transaction. It makes me wonder why bitcoin users do not routinely engage in 1:1 transactions simply to frustrate traffic analysis.

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    1. Re:Ghost transactions by Anonymous Coward · · Score: 3, Interesting

      Wouldn't traffic analysis easily cancel out normal 1:1 transactions? You gonna have to go the extra mile if you really want to stop traffic analysis. And why would you do that? Paper currency is still way better for anonymous transactions.

    2. Re:Ghost transactions by Anonymous Coward · · Score: 5, Interesting

      Was this transaction really intended to be secret? "Leaking" the identity seems like a positive PR move for the exchange --- "look how much BTC we handle, and how hot bitcoin transactions are!". Normal sized transactions are already obfuscated by the traffic of normal sized transactions. How many users have $1e8 bitcoin balances to shuffle around just to provide "cover" for this size of transaction --- as though doing so would improve their ability to keep a low profile?

    3. Re:Ghost transactions by philip.paradis · · Score: 4, Insightful

      I don't understand why people keep assuming Bitcoin is designed to be anonymous. It isn't.

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    4. Re:Ghost transactions by Trepidity · · Score: 5, Insightful

      Even more than not designed to be anonymous, it's specifically designed to have a global, completely public transaction ledger. That is more or less the core of the design. How do you have "accounts" without a central server keeping track of them? The Bitcoin solution is a public ledger that all clients agree on. This public ledger then has an update mechanism designed in a way that's intended to make it so you can add transactions to the public register iff you have the private key of the account the transaction is "from".

      Of course, you can try to keep your RL identity from being associated with a particular account number, but Bitcoin's design makes no specific effort to help you do so: the transaction graph is public, for anyone to do any kind of analysis they want.

    5. Re:Ghost transactions by philip.paradis · · Score: 4, Insightful

      Indeed on all points, and I'm still trying to figure out why people keep making the assumption that identity protection or obfuscation measures of any sort are part of the protocol. Maybe it's the "crypto" part of "cryptocurrency" that causes some kind of automatic correlation, although if that were the case one would think that the widespread use of cryptographic mechanisms for identity verification might encourage the opposite assumption.

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    6. Re:Ghost transactions by Anonymous Coward · · Score: 4, Insightful

      Wouldn't traffic analysis easily cancel out normal 1:1 transactions? You gonna have to go the extra mile if you really want to stop traffic analysis. And why would you do that? Paper currency is still way better for anonymous transactions.

      Paper?

      In regards to the referenced transaction, $150 million in $100 bills weighs over 1.5 tons.

      Hate to say it there Mr. Cash Anonymous, but that ain't gonna fit in your carry-on.

      And you might raise a few questions as to why you're filling half the cargo hold. National headlines is hardly a way to keep the transaction anonymous.

      In the meantime, this public-broadcasting test of the Bitcoin transcation network has been a success. Hardly anyone noticed.

      Now is when the real money starts getting pushed through.

    7. Re:Ghost transactions by Anonymous Coward · · Score: 5, Insightful

      What do you mean "hardly anyone" noticed? It made a Washington Post article, plus a front-page Slashdot story. I'm pretty sure that anyone who anyone might worry about noticing has noticed aplenty (obviously, this transaction was not trying to avoid notice).

      For Big Cash transactions, there are of course monetary vehicles in larger than $100 denominations --- all sorts of bonds/cheques/etc. that are good for deposit by bearer at any of the major financial institutions for the convenience of their mafia customers. Cash money laundering, or electronic equivalents like the several billion dollars worth of South American narco-cartel money that Chase Bank assisted in moving around, is still an option in wide use.

    8. Re:Ghost transactions by Jeremy+Erwin · · Score: 3, Insightful

      500 Euro banknotes are readily available.Wikipedia notes "Approximately 580,593,400 €500 notes in circulation around the Eurozone.[61] That is approximately €290,296,675,500 worth of banknotes."

      Interestingly, there only "Approximately 188,575,200 €200 notes in circulation around the Eurozone.[61] That makes it the least used banknote of the Eurozone. That is approximately €37,715,031,400 worth of banknotes.[61]"

      My guess is that the 500 Euro note has special value among those who habitually exchange briefcases of currency.

  2. Re:I think I will stop reading slashdot....... by Anonymous Coward · · Score: 5, Insightful

    To be honest, Slashdot and http://phys.org/ are by far, my favorite websites for interesting stories news.
    However, I am getting tired of fucking bitcoin stories. Enough is enough.

    You don't have to read the summary. You don't have to click on the links. You don't have to post annoying comments. In fact, I think slashdot will be better if you do stop "reading" it.

    But, yeah, I'll give you that there are way too many bitcoin stories...

  3. Re:I think I will stop reading slashdot....... by Pseudonym+Authority · · Score: 5, Funny

    No, I cannot allow that. Even if you leave Slashdot for whatever shitty site that is, I will come to your house, put a gun to your head, and force you to read Bitcoin stories much like Unknown Lamer does here. You must read them. This is not an option. If you had a choice, there would be some sort of summary on the front page with a link instead of how it is now where every bitcoin story locks your browser and won't let you navigate away unless you post.

  4. Um, this isn't as amazing as some might think... by JohnA · · Score: 5, Interesting

    This is simply good stewardship. One of the largest exchanges (actually not, Bitstamp, rather another ahem Magic: The Gathering Online Exchange site) had a rush of buy orders, so they decided to redeem an address they kept in cold, offline storage to meet demand.

    This is a good thing(tm), as it means that there isn't any fractional deposit factoring going on.

  5. Re:I think I will stop reading slashdot....... by sumdumass · · Score: 3, Informative

    If you create an account, go to options under your username after logging in, you can set terms to ignore and those stories should not appear on your front page. Setting a term Bitcoin should stop stories about bitcoin from entering your front page.

    If you insist on posting anonymously, then simply log out after seeing what stories interest you and opening them in another tab.

    I'm personally at a loss to why people think so highly of bitcoin. There are about 80 or so other virtual currency exchanges out there and it seems that none of them are stable in the sense of real currencies. I understand the concept of it being like a credit card with the limitations of a wallet (Ie if you lose your wallet, you lose only the funds in it where if you lose your credit card, it can be charged until it is shut off), but beyond that, I just don't get it.

  6. Re:Can someone explain bitcoin banks to me? by tftp · · Score: 5, Insightful

    Why are people trusting their coins to a bank?

    Well, here are the reasons that we have to keep national currencies in the bank:

    1) Because it's hard to guard your cash all day and all night.
    2) Because the bank pays you interest.
    3) Because the bank gives you the ability to send and receive money using checks, transfers, money orders, cards.

    All these reasons (except #2) are valid in case of BTC. The more backups of your wallet you make, the more likely it is that one of them gets exposed to a thief. The fewer backups you make, the more likely it is that you will lose your wallet forever. A bank does not keep your money in a wallet, though they have deposit boxes for other items. If you deposit your BTC into an account, the record states that the bank owes you so many BTC. You have a copy of all transfers of that money, in or out. Loss of wallet is immaterial. Theft of wallet is immaterial. If the paper says you have 10 BTC in your account, that's what you will get. If someone sends you 20 BTC, you do not need to fiddle with blockchain and confirmations - as soon as your bank says you have the money, you have the money. The bank isolates the customer from the technicalities of running BTC clients. Add credit cards and checkbooks, and you can pay with BTC just as you pay with USD or GBP. Credit cards will be swept instantly (and not in 15 minutes.) The latter is, actually, very important because the raw BTC is ill-suited for small, numerous transactions that have to complete within seconds.

  7. a skeptic says "wow bitcoin is serious ". Hope thi by raymorris · · Score: 3, Interesting

    I've poo-pooed Bitcoin before. If it's now at the point where there are $150 million transactions, that's significant. I sure hope the operators of that exchange don't disappear with the money, get hacked, or any of the other nastiness that seems to happen every couple of weeks. A $150 million heist would be a big deal, and damn few internet-connected systems are secure enough to thwart even moderately skilled crackers. For example, a certain national agency I'm familiar with that does cyber-security training is wide open to SQL injection and other attacks. I sure hope these bitcoin exchanges have better security than the agencies that set security standards have. If not, somebody's going to steal $150 million in bitcoins any day now, and that'll be a big deal.

  8. Re:Iran/Contra 2.0 by M.+Baranczak · · Score: 3, Funny

    How do you streal something that disappears after a magnet is passed over it?

    Are we talking about Bitcoins, or music?

  9. Re:Um, this isn't as amazing as some might think.. by DamnStupidElf · · Score: 4, Interesting

    Financial markets like MtGox could easily maintain fractional reserves because many account-holders don't withdraw their entire balance of bitcoins every night. There is plenty of opportunity for the exchange to do whatever they want with a portion of the deposits. In essence "mtgox bitcoins" are already a fiat currency that are payable in real bitcoins upon request. They just haven't started paying out at less than 1 bitcoin per mtgox bitcoin yet, like half of the other bitcoin exchanges/banks/whatever have when they got hacked.

  10. Re:a skeptic says "wow bitcoin is serious ". Hope by myowntrueself · · Score: 3, Insightful

    Thats kind of what I mean; you can't set prices in bitcoins. That impacts the bitcoins utility as a practical unit of currency.

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  11. Re:Hypothetical Question by mysidia · · Score: 4, Informative

    I know what would happen to my bank account, but would that have thrown the entire system into chaos if I cashed in that many at once?

    There is a liquidity problem with BTC. You probably would have great trouble trying to cash in that many, AND get actual US dollars for them.

    Sure... you could switch from a BTC balance to a USD balance at Mtgox... do you think they will be sending you your check anytime soon?

  12. Re:a skeptic says "wow bitcoin is serious ". Hope by myowntrueself · · Score: 3, Insightful

    Right, which is what I'm getting at; the bitcoin is useless as a 'coin' that you can buy and sell goods and services for. Its only use at the moment is speculation.

    You can't set prices of goods and services in terms of 'thinly traded commodities subject to massive speculation'.

    You can't put bit coin price tags on things, this would be completely impossible. Yet I see this often online.

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    In the free world the media isn't government run; the government is media run.
  13. Re:I think I will stop reading slashdot....... by kumanopuusan · · Score: 4, Interesting

    To the average consumer who isn't necessarily aware of being tracked or of the fees paid to payment processors, it probably seems just like a credit card payment. To the person or business on the other end of the transaction, however, the two couldn't be more different. There's no approval process to accept bitcoin, there's no third party to charge processing fees and there are no disputed charges. In a lot of ways, it is more like cash.

    Beyond all of that, bitcoin is more interesting as a demonstration of what is possible and an indicator what will soon be possible. It's shown that individuals can cooperate for their own benefit at a global scale, without the need for government intervention. Maybe it's naive to expect that technology can effect substantial change in global politics, but you can't blame people for being excited about the potential to reduce the power of nationalist governments that wage wars and build prisons, and reduce the harm done by stupid, wasteful and corrupt politicians.

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