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Bitcoin Releases Version 0.3

Teppy writes "How's this for a disruptive technology? Bitcoin is a peer-to-peer, network-based digital currency with no central bank, and no transaction fees. Using a proof-of-work concept, nodes burn CPU cycles searching for bundles of coins, broadcasting their findings to the network. Analysis of energy usage indicates that the market value of Bitcoins is already above the value of the energy needed to generate them, indicating healthy demand. The community is hopeful the currency will remain outside the reach of any government." Here are the FAQ, a paper describing Bitcoin in more technical detail (PDF), and the Wikipedia article. Note: a commercial service called BitCoin Ltd., in pre-alpha at bitcoin.com, bears no relation to the open source digital currency.

75 of 491 comments (clear)

  1. How secure by Tisha_AH · · Score: 2, Insightful

    I would like to see what sort of guarantees are in place for virtual currency

    --
    Tisha Hayes
    1. Re:How secure by sjames · · Score: 5, Insightful

      Given that the gold standard is gone, I'd like to see those guarantees too. Your paper money is virtual as well.

    2. Re:How secure by hitmark · · Score: 4, Interesting

      i would say that any currency is backed by the goods and services one can buy with it.

      the one way to make sure a currency is usable in daily trade is for it to be accepted as tax payment by local government.

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    3. Re:How secure by Anonymous Coward · · Score: 5, Funny

      Don't forget, you can always use your paper money as toilet paper. That's why I keep a few American dollars in my wallet. You just never know when a washroom might run out of toilet paper.

    4. Re:How secure by longhairedgnome · · Score: 2, Funny

      That's...actually a good idea...

      --
      GENERATION O98346: The first time you see this, copy it into your sig and remove a random number from the generation. T
    5. Re:How secure by FooAtWFU · · Score: 4, Informative

      Money is money because people believe it is money. Gold-backed currency needs to have people believing that the government is actually going to turn the currency into gold (and not, say, end the gold standard). And if you trust your government enough to do that, today's system isn't much more of a stretch: trusting the government to keep the value of your currency "relatively stable" without any particular commodity attached to it.

      And commodity prices are subject to wild swings too, you know.

      --
      The World Wide Web is dying. Soon, we shall have only the Internet.
    6. Re:How secure by sjames · · Score: 2, Insightful

      Agreed, but it's got thousands of years track record.

    7. Re:How secure by Anonymous Coward · · Score: 5, Funny

      how do these big fat women always find the exact center of a doorway or an aisle so that no one can get around them

      Practice. If they get too close to any wall their gravity might collapse it towards them.

    8. Re:How secure by Anonymous Coward · · Score: 3, Interesting

      All money is virtual. Direct barter is the only thing that isn't, and even then only after the transaction has been completed. Precious metals are no different. The price of gold has gone up to 4x what it was a decade ago and it can drop again just as quickly. Clearly it isn't a reasonable, stable store of value. Also, traditionally the value of gold and other precious metals has generally been explicitly set by nations laws. For example the one sixteenth rule for the value of silver to the value of gold. So, although precious metals may have intrinsic value (the corrosion resistance of gold, its malleability and decent conductivity make it useful in many applications in small amounts, and silver is the most conductive metal and is vital in a number of chemical processes such as traditional photography) that has little relation to their traditional value, which has always been artificial. Sure, it's rare, but there are plenty of rare things in the world and some of them are considered valuable and others no-one cares about.

    9. Re:How secure by smash · · Score: 2, Insightful

      i would say that any currency is backed by the goods and services one can buy with it.

      this is find and dandy if it is a fixed quantity of goods and the currency is bound to that by law. eg, the gold standard.

      in the current situation with the us dollar (world's "reserve currency", lol) being backed in this manner by thin air, there is nothing to stop the government simply creating more to get themselves out of debt (inflation) thus reducing the value of goods your single dollar can buy (what you SEE as inflation).

      --
      I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
    10. Re:How secure by smash · · Score: 2, Insightful

      The price of gold has only gone up when measured in fiat dollars. What has really happened is that the value of your dollars (and the rest of the worlds fiat money) has gone down. The resources/labour expended (real cost) to extract an ounce of gold hasn't changed that dramatically in the past decade.

      --
      I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
    11. Re:How secure by Teancum · · Score: 3, Informative

      i would say that any currency is backed by the goods and services one can buy with it.

      the one way to make sure a currency is usable in daily trade is for it to be accepted as tax payment by local government.

      More correctly, any fiat currency (to clarify things... as opposed to a commodity-based currency such as a gold, silver, or grain backed currency) is based upon the faith of those who participate in and use that currency to buy goods and services with it in the future.

      That is a huge deal and is much different than simply the mere ability to buy goods and services. A government could collapse, the currency could be devalued, or that faith in general could be broken through a variety of other means.

      Perhaps the most significant example of a faith-based currency (faith in the currency, not based upon religion) was the Iraqi Dinar. After the fall of Saddam Hussein, there were many people who thought that it was going to collapse just as other currencies issued by governments that no longer exist have also collapsed. The Nazi German Mark and the Confederate Dollar are both examples of currencies that inflated in value to infinity (aka became worthless). In the case of the Iraqi Dinar, the Iraqi people were both not exactly pleased with the American occupation, and there really wasn't anything to replace the currency. Surprisingly, due to scarcity (no more money was being printed as the government bureaus making the money were destroyed) and a desire by the Iraqi people to continue on economically, the Dinar actually increased in value. In other words, the Iraqi people continued to have faith in that currency to buy future goods and services.

      While certainly governments getting involved with deliberately inflating currency can destabilize that currency, it is also true that at least for awhile a currency can remain stable due to the faith of the people possessing that currency to buy something with it in the future.

      It should also be noted that this is true not just for fiat currencies "in the real world" but it also applies to virtual economies in video games and MMORPGs. Surprisingly even a single-player video game can still have this impact, where a player may hoard or spend with abandon any virtual money found based upon the principle that either the money is plentiful (or without stuff to buy) or of significant value based upon the supply of that money and the potential to obtain things with it. In the case of multi-player games, it becomes a huge issue if virtual markets open up for exchange of goods and "services".

    12. Re:How secure by nomadic · · Score: 2, Informative

      It doesn't matter what you can use it for, so long as it is a FINITE resource and isn't easily replicated. . .That gold is a result of human labour and resources spent

      A lot of worthless minerals are hard to extract I'm sure. What you're saying sounds even worse than just arbitrarily saying gold is valuable, you're saying all this work went into essentially creating something that is not really that valuable, and that work somehow added to the value?

    13. Re:How secure by sjames · · Score: 2, Funny

      That would add new worlds of meaning to getting screwed by the used car dealer.

    14. Re:How secure by Anonymous Coward · · Score: 2, Insightful

      Agreed, but it's got thousands of years track record.

      So why not base/fix the currency on sex?

      because then it would be just like copyright, a model of artificial scarcity that does not reflect the economic reality. that is women are about 52% of the population so there is no shortage of pussy. they selectively and deliberately withhold it to artificially inflate its value sort of like any other cartel. unless you think the RIAA is a great organization that benefits all of mankind then you can see what is wrong with this.

      incidentally that is why average women are so offended at "slutty" women - not because they are so moral but because women who do not subscribe to the artificial scarcity model threaten to devalue pussy for all women, just like new competition in a monopolistic marketplace, and this cannot be easily tolerated by the members of this cartel. thus the stigma of being called a "slut" is a barrier to entry for would-be competitors who are not members of the unwritten cartel. that cartel is not a conspiracy but is arranged by the female instinct to raise the cost of sex. a little evolutionary psychology will explain most of this except that the religion of political correctness has watered it down a bit, no one wants to admit how ruthlessly manipulative women tend to be in any close relationship or how oblivious they are to this fact.

      anyway you do not want to base a currency on this model of whimsical and artificial manipulation. a currency should reflect the economic reality as closely as possible and the female domination of sex makes this impossible to use sex as a basis. besides, the thing about currency is that one dollar spends just as well as any single other dollar. sex does not work this way. sex with a beautiful woman would not be as "current" (spendable) as sex with an old fat sow.

      in summary, this is just a really bad idea.

    15. Re:How secure by nomadic · · Score: 2, Funny

      I think it is well-established that the currency of choice for post-apocalyptic civilizations is bottle caps.

    16. Re:How secure by CuriHP · · Score: 2, Insightful

      The value of gold has not remained fixed either. It is subject to supply and demand like any other commodity. The cost to extract it is only the supply side of that equation. The demand side can fluctuate wildly. The price of gold has gone both up and down when measured in fiat currencies.

      --
      If it's not on fire, it's a software problem.
    17. Re:How secure by jthill · · Score: 5, Insightful

      Tying fiscal policy to the amount of shiny stuff we can dig out of the ground is far sillier.

      If the amount is fixed, then as the economy expands the available value per coin increases and prices drop: instant, guaranteed deflation, getting worse as the rate of value growth increases. If you want to sell something new into a stable economy, everyone else has to drop their prices to make room for you.

      Fiat currency may require us to appoint agents to keep the money supply and the value supply roughly in sync, but at least it provides the mechanism to do it. With the ooooh-pritty-shiny-stuff system, so appealing to people who can't think when there's pritty shiny stuff in sight, money and value are absolutely guaranteed to get out of sync, badly. very fast, with no remedy at all. Unless of course the economy is totally stagnant, with no new wealth being created. Yeah, that's what we want.

      --
      As always, all IMO. Insert "I think" everywhere grammatically possible.
    18. Re:How secure by jesset77 · · Score: 2, Informative

      In Snowcrash, after hyperinflation the federal govermnet had to post threatening signs in the restrooms about how defacing currency is illegal, specifically because the toilet paper cost more per square foot than the bills. :S

      --
      People willing to trade their freedom of expression for temporary entertainment deserve neither and will lose both.
    19. Re:How secure by MyFirstNameIsPaul · · Score: 4, Interesting

      What is the problem with deflation? In the U.S. we had deflation for over a century and it worked out quite well. (Spiral deflation is only theoretical - it has never happened.) Hard currency has been used for thousands of years and there are no indications that any economy has resorted to mass saving or hoarding. People generally enjoy spending money and growing their wealth; it's human nature.

      Inflation, on the other hand, is the root of much evil. It has utterly crushed economies and created conditions ripe for mass-murdering, genocidal tyrants to come to power. Deflation has never done such a thing.

      Money makes trade between two parties much easier because without some form of currency we would have to rely on a Coincidence of Wants. It also acts as a method of informing producers what consumers are desiring, generally in a way that is much more efficient than centralized control.

      There is nothing wrong with interest, per se. It allows those with capital an opportunity to increase wealth and those without capital an opportunity to create wealth. Both parties win.

      Increasing taxes generally has the effect of reducing economic activity (Laffer Curve). Using taxes to control the money supply would have the effect of destroying production.

      The concern of the solvency of the lender should only be for the interested parties. However, in your example of fractional-reserve lending this can really only be practiced with paper currency. In order to make a loan, the currency must be provided. If a bank has $10 of deposits and wishes to make $15 in loans, it must find the extra $5 from some place. In the case of a hard currency, it must find another party to provide the $5, but in the case of a paper currency, it simply gets the money from the central bank at some interest rate that is probably at a rate below what the market would demand for that money.

      Inflation, even a 'small' amount, has the effect of encouraging malinvestment. When people know that come time to retire, that $10,000 they added to their savings this year is only going to be worth $5000 when they retire, they know that they must put this money some place to protect it from inflation. But people are generally poor at choosing places to invest their money, and they are downright awful when they feel pressured to do so. They invest in stocks that don't give dividend yields; they invest in real estate and have no idea why. In short, they invest in things that are beyond their understanding because they feel pressured to do so. OTOH, if there were instead a small amount of deflation, convincing people to part with their money would be considerably more difficult. Since the average person could be confident in knowing that a penny saved is truly a penny earned, not some fraction thereof, they would stick with what they know, and the economy would grow more efficiently.

      It is the paper currency that is the root of evil. Many try to speak of it as if is some new concept; the next evolutionary step after gold, but fiat currency systems have been around for thousands of years, and every society that ever engaged this policy has gone bankrupt, including Ancient Rome.

      --

      I once took an excursion to Reddit, and later HN. Unlimited up/down voting sucks when dealing with a hive-mind.

    20. Re:How secure by Myopic · · Score: 5, Interesting

      For fifty years, the only valid currency has been crude oil. All national currencies trade against the cost of a barrel of oil. What makes you like gold? It's just soft yellow metal. You can't fill your gas tank with gold. Military might (which is the backing for most national currencies) is certainly more useful than your silly gold.

    21. Re:How secure by Teancum · · Score: 3, Insightful

      Most people don't understand economics other than having the largest pile of money compared to their neighbors (or complaining that their neighbor has a bigger pile than they do). Wealth creation isn't generating the money itself, but rather what you can do with that money in order to get others to do things for you. If you don't understand that distinction, then it is a hopeless cause at trying to understand economics at its most basic form.

      Wealth is ultimately the blood, sweat, and tears of somebody working their behind off to make something, and all of the rest of money flows from that effort. There may be physical materials involved along the way, but you are paying either directly or indirectly for somebody to extract those materials, to shape it and mold it or do something with it. The currency then becomes a more or less averaged value of whatever it is that you are doing compared to what everybody else is doing. Yes, governments can get in the way via taxes and subsidies to screw the system up and give incentives and disincentives for certain kinds of activities... and to suck up some of that wealth by the "rulers" of that society in exchange for hopefully some civil tranquility, but it all ends up being an exchange of goods (made with labor) or services (simply paying for somebody's time more directly).

      It really makes no difference in the long run between a fiat currency and a commodity currency anyway. Both require acts of faith, and the medium is relatively neutral in terms of whatever it is that you are trying to obtain above and beyond the pile of money in the first place. Even gold requires faith that somebody will accept it in the future, and it has the additional problems of extreme weight and being useful only for major transactions (due to its high intrinsic value). Any concentration of gold also requires couriers and potentially body guards and other sorts of security that end up simply costing more money than it is worth. It is also placing faith that the gold won't be devalued at some point in the future.

      If, for example, somebody discovers a gold nugget on an asteroid that is the size of a house and can relatively cheaply bring it to the Earth, it would cause the gold markets to crash real hard. Gold would still have some value afterward, but it wouldn't be pretty for those who have invested large amounts of their labor into gold.

    22. Re:How secure by MrNaz · · Score: 3, Interesting

      I wrote about the problems in the Eurozone that arise from having conflicting monetary and fiscal policies in a blog entry linked to below. Basically put, the Eurozone forces member states to have materially identical monetary policies due to the unified currency and centralized state banking. Under such circumstances, nations are unable to compensate for national situations using fiscal policy alone, and their attempt to do so is a large part of what has landed Europe in the fiscal mess they're currently in.

      http://www.mrnaz.com/?s=publish-blog&entryid=208

      --
      I hate printers.
    23. Re:How secure by Z34107 · · Score: 2, Insightful

      Deflation did not "work out quite well." It absolutely sucked for farmers (which, when we had deflation, was basically everyone.) You had to take out a bank loan to purchase seed up front; you would pay your loan back with interest after harvest.

      Deflation makes those loans a raw deal - you might pay $1200 on a $1000 loan, but each of those dollars is worth more after a growing season's worth of deflation. Because of deflation, you pay the bank much more in constant dollars.

      I'm also not sure why massive deflation is a solution to people not knowing how to save or invest money.

      --
      DATABASE WOW WOW
    24. Re:How secure by Toonol · · Score: 2, Insightful

      Hm. I'd think that anything you designate as a currency basis will go UP in demand, making it HARDER to obtain. The current price of gold is not where it is purely because of the demands of industry and the jewelers. Its status as a pseudo-currency is inflating the price.

      Maybe an ideal currency would be finite, but have no great value other than its value as such? That way, we aren't impeding lives by making a value item more difficult to obtain.

      Scraps of paper with a certain logo on them would suffice, I suppose, if we could ENSURE the supply would remain finite.

    25. Re:How secure by smash · · Score: 2, Interesting

      I'm not sure why you're laughing at the US dollar's status as the world's reserve currency,

      Because when it was on the gold standard, this was a reasonable idea.

      When nixon axed the gold standard, and the rest of the world DIDN'T revoke the reserve currency status, we affectively gave the US/US Government a blank cheque with regards to how much money they can print.

      However, recent events have brought this to light, and you can bet your arse that china, et al won't continue buying T-bills for much longer.

      And when they stop, the US economy is fucked.

      --
      I run: Windows, OS X, Linux, FreeBSD. Just because you have a hammer, doesn't mean everything is a nail.
    26. Re:How secure by ribuck · · Score: 2, Funny

      They can be washed...

      That would be money laundering.

    27. Re:How secure by Teancum · · Score: 2, Interesting

      State-based (and territory-backed) currencies existed in the United States well into the 19th Century and even partly into the 20th Century in the case of the Alaskan Gold Rush. It was something directly tied to a lack of liquidity and the fact that the economies of those regions needed an extra jump start to get something going.

      Usually state-backed currencies in the 19th Century had a one to one relationship with the U.S. Dollar, so it wasn't as big of a deal. The Federal Reserve wasn't established until 1913, and has always been built around the concept of electronic funds transfers... starting with the telegraph.

      There was "cheating" involved with private and state notes and it has caused other sorts of problems with them including bank runs and panics, particularly when the money couldn't be paid back to the commodity (usually gold) or federal currency that it represented.

      America hasn't always had a central bank, and arguably it isn't needed either on the principle it may do more harm than good. That, however, is the subject of a whole other thread or better yet another story.

  2. uhhh.... by girlintraining · · Score: 2, Insightful

    and the moment it's cracked the world economy collapses? Nah. Pass.

    --
    #fuckbeta #iamslashdot #dicemustdie
  3. Wow, that looks entirely legit! by Anonymous Coward · · Score: 5, Informative

    The Wikipedia article (beyond the fact that the article is on the most unreliable data source outside of a Soviet propaganda factory) is sourced entirely to bitcoin.org. This /. article is sourced entirely to Wikipedia and to....bitcoin.org.

    So it's slashvertising AND garbage. Three cheers for kdawson.

    1. Re:Wow, that looks entirely legit! by Tisha_AH · · Score: 5, Funny

      Pshaw! The only true reliable source of information is the guy who appears on late night television with that goofy suit with $ signs all over it who talks about getting free money from the government.

      It must work, look at how many politicians we have.

      Compared to that guy, Wikipedia is still in diapers.

      --
      Tisha Hayes
  4. /.ed already, FAQ at sourceforge by Anonymous Coward · · Score: 3, Informative
  5. Ummmmmmm by Immostlyharmless · · Score: 2, Insightful
    Does anyone understand this at all? It's slashdotted already so can someone explain what

    nodes burn CPU cycles searching for bundles of coins, broadcasting their findings to the network.

    means? This sounds like something I would do in an RPG? Where does it find these 'bundles of coins'? Am I just being obtuse about all of this? O_O

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

      New currency can be generated by solving difficult math functions (cryptographic functions)

      Since these functions take a certain amount of energy (electricity) to complete, the value of the currency is driven towards the price of electricity.

      It's similar to mineral mining: on average you have to spend a certain amount of time and effort to mine a certain amount of gold, and this tends to set bounds on the value of the gold.

    2. Re:Ummmmmmm by noidentity · · Score: 2, Insightful

      I love how the Wikipedia article just assumes you know what the hell this is or how it would serve as money. Unless this currency is like gold or silver where the quantity in existence is essentially fixed, I'm not interested, since it'll be subject to inflation, and thus price inflation. We already have tons of currencies to choose from if we want monetary inflation.

    3. Re:Ummmmmmm by xaxa · · Score: 3, Interesting

      I've installed the software (from Sourceforge) and I still don't really understand it.

      I have an address to receive payments (1D3ojVLNgD7D5WEKdq37m291N3Cai5CHTU) but it seems I'll have to wait a while to generate a "coin" myself. When that's done I don't know what I'll do with it -- how could I spend it? Why would you accept it?

    4. Re:Ummmmmmm by HungryHobo · · Score: 4, Insightful

      In practice the quantity of gold/silver/etc available is not fixed.

      Tomorrow someone builds better mining equipment and suddenly there's 5 times as much available.

      A ship loaded with a significant quantity sinks over the mid atlantic trench?
      well in practice it has gone beyond where humans can practically access it and so might as well no longer exist.

      Alternatively someone might build some kind of Von Neumann machine which can extract your precious metal from seawater or mine asteroids and suddenly the value of your precious metal would drop close to zero.

      Whenever someone invents a cheaper way to mine gold you're going to experience price inflation as the gold in your safe becomes less valuable.

      gold is only special to people who delude themselves that it's somehow special.
      Food, clean water, tools, feminine hygiene products, useful information.
      If you're convinced fiat currencies are going to collapse these are what you should be filling your underground bunker with, not some shiny metal which will only be worth anything if people believe it has any intrinsic value.

    5. Re:Ummmmmmm by thegarbz · · Score: 2, Insightful

      gold is only special to people who delude themselves that it's somehow special.

      Yet in practice it has a more stable history than any fiat currency. You theory that gold is not fixed is correct, but that doesn't change the fact that it is far more reliable than a currency backed by the decisions people make. Gold takes energy and effort to get out of the ground. Creating bigger and better machines takes time and effort. Essentially this forces the market itself to be very slow. Compare that to a currency which has an intrinsic rarity based entirely on someone's decision to print money. Look how well that turned out for Zimbabwe, where the solution to inflation was to print a few extra zeroes on the end of the note.

      Also in your post apocalyptic world Gold will always have an intrinsic value. Whoever has the food and clean water is also likely to have a wife who wants something shiny. Gold has been a desired element since 3000BC, it is still a desired element today not only for fashion (gold plated iPads), but also for its chemical properties such as resistance to acid (gold plated Hastelloy is used quite extensively in the chemical industry).

      The only delusion here is not realising that gold is special because the people make it special, and that hasn't changed in 5000 years.

    6. Re:Ummmmmmm by noidentity · · Score: 2, Interesting

      There's nothing wrong if a ship full of gold sinks. It increases the value of gold. The problem is massive inflation, as all fiat currencies have or will experience. Gold mining is a tiny fraction of the current amount of gold held by people, so it doesn't have any noticeable effect.

  6. Re:uhhh.... exactly by Tisha_AH · · Score: 4, Funny

    Bitcom... Backed by the Greek treasury.

    --
    Tisha Hayes
  7. With Scale Will Come Gov Intervention by cmholm · · Score: 4, Insightful

    As someone pointed out, this article is light enough on source material that it may count as more of a slashvertizement. That said, if Bitcoin, or any micropayment and/or e-cash plan scales beyond a certain level, it's gonna attract both criminals and government interest and intervention, much as age-old Islamic halawa got a lot more notice when used by gangs like Al-Qaeda.

    --
    Luke, help me take this mask off ... Just for once, let me butterfly kiss you with my own eyes.
  8. soory does not make sense by mjwalshe · · Score: 2, Funny

    >>Analysis of energy usage indicates that the market value of Bitcoins is already above the value of the energy needed to generate them, indicating healthy demand.

    This does not mean anything - it strikes me this is the internet version of the guy we used to have in the UK who walked up and down oxford street with a placard warning against the dangers of lust and passion caused by fish, meat, bird, cheese, egg, peas, beans, nuts and sitting,

    Presumably later on they start talking about the Gold Standard, Jews and the Illuminati.

  9. Value Estimation is Wonky by Cylix · · Score: 2, Interesting

    A base value for bitcoins is assumed to be the energy used to create it. The system itself appears to be far more profitable when operating at am exchange entity or trader. ie, the ability to control the effective value of the coin in question. Which lends the whole process to feeling more like a pyramid scheme than anything else. Now, if you wanted a lossy system that was anonymous and had morally bankrupt exchange locations it would be useful anywhere an anonymous transaction is a must.

    On the flip side, because wealth is always being generated for free, a purpose built rig which excels at generating coins more efficiently would essentially be a living cash machine. This would in effect mean that the coin itself has no actual value. It's worthless because it cannot be returned to the previous state. This is somewhat important to me when a system is based on the trade of goods.

    In terms of actual exchange it introduces to much latency to ensure the transaction is actually valid. In terms of instant gratification the whole thing begins to break down.

    The good news is that anybody is certainly free to use it. Unfortunately, because anyone can print money (even small amounts) I'm not going to be giving up any of my items today.

    --
    "You should always go to other people's funerals; otherwise, they won't come to yours." -- Yogi Berra
  10. kdawson strikes again! by Jack9 · · Score: 3, Insightful

    Could we just get a random reddit submitter instead? Please?

    --

    Often wrong but never in doubt.
    I am Jack9.
    Everyone knows me.
    1. Re:kdawson strikes again! by Rick+Richardson · · Score: 2, Interesting

      Uncheck any author name to exclude their stories from your Slashdot homepage.

      x CmdrTaco        kdawson       x samzenpus
      x Soulskill     x StoneLion     x timothy

    2. Re:kdawson strikes again! by amirulbahr · · Score: 3, Interesting

      Any idea how to do this for the Slashdot RSS feed?

  11. Obvious flaw: by tomhudson · · Score: 4, Interesting

    from wiki

    Whenever a Bitcoin user makes a transaction, their node broadcasts the transaction to the network of nodes. When transaction data is received through a node, the node begins a proof-of-work calculation in an attempt to create a block containing the transaction. All nodes essentially race to create a block, as the first one to create a block gets Bitcoins as a reward. Once a node successfully creates a block, it broadcasts the block to the network. Other nodes receive the block, perform a proof-of-work check, and add it to their chain if it is valid. As more transactions occur, blocks are created and added ad infinitum. The longest proof-of-work block chain is acknowledged to be the oldest and most reliable account of the online transactions.

    This mechanism is claimed to be virtually tamper-proof. For an attacker to manipulate the record, he must outpace all of the other nodes on the network to produce the longest proof-of-work.

    The assumption that the longest one is the oldest and most reliable is invalid, Since anyone can peer, there's no reason that a peer can't fake itself as 20, 30, 100 peers, and, working on a very fast machine, produce a longer chain quickly than an older peer.

    1. Re:Obvious flaw: by antifoidulus · · Score: 3, Insightful

      Shhhh...you'll disrupt their feelings of self-righteousness!

    2. Re:Obvious flaw: by Anonymous Coward · · Score: 2, Interesting

      Simple - it means that they are wasting processor power instead of allowing the machines to either go into sleep mode or do some useful grid computing type work. Basically they spin the processor very hard trying to generate a "coin". Unfortunately since all the nodes do this but only one gets it, it basically comes down to "let's waste a lot of power". Stupid idea.

    3. Re:Obvious flaw: by tomhudson · · Score: 2, Interesting

      All he has to do is take the current longest - which the network provides, then have his own local botnet add 3 or 4 more from local peers, then broadcast have the 4 peers broadcase all 4 - including the desired one, which will be longer. Duh!

    4. Re:Obvious flaw: by tomhudson · · Score: 2, Interesting

      Other people have since posted links that back me up - including a link from the authors:

      The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes

      This only works in some alternate universe where botnets don't existg.

      Further:

      To modify a past block, an attacker would have to redo the proof-of-work of the block and all blocks after it and then catch up with and surpass the work of the honest nodes. We will show later that the probability of a slower attacker catching up diminishes exponentially as subsequent blocks are added.

      The reverse is also true: Honest nodes will have to redo the proof-of-work of the block and all blocks after it and then catch up with and surpass the work of the attacker nodes. Not possible if the attacker nodes have a lower latency (and a botnet can be configured that way).

      Nodes always consider the longest chain to be the correct one and will keep working on extending it.

      So as soon as an attacker pushes a longer chain, it will be assumed to be correct. Error from a bad base assumption made by naive programmers living in an ivory tower.

      the verification is reliable as long as honest nodes control the network, but is more vulnerable if the network is overpowered by an attacker. While network nodes can verify transactions for themselves, the simplified method can be fooled by an attacker's fabricated transactions for as long as the attacker can continue to overpower the network.

      Botnets FTW.

      Summary: Bitcoin is worthless.

  12. Re:Inflation at the speed of Moore's Law by BlueSTARS · · Score: 5, Informative

    I've been involved with the Bitcoin project for a while, and there are steps in place to prevent this. Essentially, the network tries to maintain block generation at a rate of six blocks per hour (one every 10 minutes) by checking every 2856 blocks (nominally 2 weeks) if the rate was too high or too low. At that point, all nodes adjust their hash target such that it gets more or less difficult to generate blocks. The net result is that more nodes or faster nodes can only really influence the market for 2856 blocks. There is discussion about reducing this number to lower that time, as well. If you'd like to discuss this with some Bitcoin participants, drop by the IRC channel: #bitcoin-dev on Freenode. I'm Lachesis on IRC.

  13. Bitcoin IRC by BlueSTARS · · Score: 2, Interesting

    The webmaster is resizing the host at Rackspace now. The site should be back up soon. Until then, feel free to come talk with the Bitcoin community about this on IRC: #bitcoin-dev on Freenode.

  14. Paging Whoopi Goldberg by YrWrstNtmr · · Score: 2, Informative

    Can we have another round of Flooz, please?

  15. Still creating artificial scarcity? by lennier · · Score: 5, Insightful

    So this system requires CPUs to burn scarce, real electricity in order to generate virtual electronic tokens whose only purpose is to simulate the scarcity of rare metals, so that we can continue to use the old 'exchange value' economic model in the realm of information where by definition, it does not apply.

    This seems like basing an economy on burning one's food crops to prove wealth and using the ash to buy things. I'm sure it would 'work', for some definition of work, but it doesn't seem particularly... efficient. Or sensible. Granted, humans do indulge in self-destructive behaviour, but do we really have to port all our bad habits into the digital world?

    Is there some actual upside to this system which I'm not getting?

    --
    You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    1. Re:Still creating artificial scarcity? by forkazoo · · Score: 4, Informative

      What they SHOULD be doing is generating currency by doing computational WORK for another node that will act as an employer. The currency can be in denominations of estimated processor cycles or whatever. Valuation is the big issue. There are still a lot of issues to work out, but at least it would make more sense than just burning cycles to create arbitrary crypto tokens.

      But, then what does the "employer" pay with? If the only medium of exchange is barter of CPU cycles, then the employer would have to work on some problem the employee needs computed while the employee works on some problem the employer needs computed. The two sides could just work on their own problem to exactly the same accomplishment. By generating some arbitrary medium of exchange, you can increase the liquidity of a market, which is basically zero in a barter system with only a single good. Without some liquid capital to get things moving at the start, you don't have anything interesting happening.

  16. Re:uhhh.... exactly by blackest_k · · Score: 3, Interesting

    couldn't find anything on the 60's but this page from 2009 was interesting.

    http://www.brianrwright.com/Coffee_Coaster/01_Columns/2009/090609_Liberty_Dollar_Game_On.htm

    with the currency being made of precious metal and not being legal tender the worst that happens is you go for scrap value.

  17. More information by bencoder · · Score: 5, Informative

    Since the site is down and the summary is light on information, let me try and summarise this a bit better, from what I've picked up, so I might be wrong on some of the details):

    Nodes connect to each other in a P2P network.
    The nodes perform hashing problems, attempting to find a number that hashes to a value with a certain number of 0's at the start (binary zero's, aka, the number has to be below a certain value)
    The network assigns bitcoins to those nodes who have found solutions to the hashes.
    After a certain amount of time the difficulty of finding the hashes increases(an extra 0 is added to the hash solution required)
    This increase in difficulty continues until eventually there will be 21million bitcoins and no more can exist.

    We are currently in the inflationary stage, so the supply of bitcoins is increasing. once all 21 million have been assigned, then it will become deflationary, as no new coins can ever be created and coins that are lost are lost forever.

    bitcoins can be divided into 100 million pieces, so the limit of 21 million coins is not a major stumbling block.

    Essentially it's a way to create a decentralised currency with a hard limit on how much is available, ensuring that it cannot be inflated by a central government simply printing more cash or adding some numbers to a computer system.

  18. Awesome... by thestudio_bob · · Score: 4, Funny

    Cool, I can say it will cost you "2 Bits" and people won't stare at me like I'm some sort of old geezer.

    --
    The real Sig captains the Northwestern. This one captains /.
  19. How's that for a disruptive technology? by exley · · Score: 2, Insightful

    Oh that's right... It isn't. But hey, thanks for trying to post something all edgy or controversial or whatever the hell you think it is, kdawson.

  20. Re:uhhh.... exactly by proxima · · Score: 3, Informative

    BTW the Federal Reserve is not part of the government, just as Federal Express is not part of the government. The name is designed to deceive you but the Fed is still a private bank. It's a private corporate monopoly.

    No, the Federal Reserve is part of the government. Its chairperson and its governors are appointed by the President and confirmed by the Senate. It was created by law but was granted substantial independence from political influence. By and large this is seen by economists as a good thing; independent central banks can fight inflation with more credibility if the major branches of government don't have the power to print money. What money the Fed does make -- profits, that is, after paying its own expenses -- the Fed pays back to the Treasury.

    Your analogy to Federal Express is just wrong. You might make an argument for the USPS (at least in a historical context, if not how it exists now), but that is still tenuous. The Fed isn't private in any of the usual aspects: no other shareholders, profits returned to the Treasury, and its management is appointed by the typical President/Senate combo.

    --
    "The universe seems neither benign nor hostile, merely indifferent." --Carl Sagan
  21. Re:uhhh.... exactly by proxima · · Score: 3, Informative

    The Federal Reserve is a private banking institution which is run by government appointees. It is not now nor has it ever been a part of the federal government. They just happen to be the ones that are authorized to represent the Federal Government in that respect.

    You can say that all you want, but to quote the Fed itself:

    The Federal Reserve must
    work within the framework of the overall objectives of economic and
    financial policy established by the government; therefore, the description
    of the System as "independent within the government" is more accurate.

    Congress designed the structure of the Federal Reserve System to give it
    a broad perspective on the economy and on economic activity in all parts
    of the nation. It is a federal system, composed of a central, governmental
    agency--the Board of Governors--in Washington, D.C., and twelve re-
    gional Federal Reserve Banks.

    It is part of the government, but independent of the three branches.

    --
    "The universe seems neither benign nor hostile, merely indifferent." --Carl Sagan
  22. Re:Inflation at the speed of Moore's Law by HungryHobo · · Score: 3, Interesting

    I'm curious- from the sound of this it would be a great way for botnet herders to turn their victims electricity bills into cash(assuming I can swap my bitcoins for regular pay-my-taxes cash somehow). What measures are in place to prevent this?

  23. Re:Inflation at the speed of Moore's Law by daeglo · · Score: 2, Interesting
    Forgive me if this comes across as sarcastic

    If faster computers cause the system to become more complex, thus slowing generation, then wouldn't the older computers become less desirable despite not physically having changed? Mathematically, how would this work out if I created the next "Big Blue", then after joining the network, suddenly I am the only one capable of generating a coin as the bar is raised higher than the peers are capable of reaching??

  24. From the PDF by pem · · Score: 4, Insightful

    The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes.

    Good luck with that...

  25. Also the way you really add value by Sycraft-fu · · Score: 5, Informative

    Is by taking it out of circulation. Most of the gold we've mined isn't used for anything, it is simply inspected and then put back underground, only this time in a hole humans dug that we guard. It is artificial scarcity. The gold is there, it could be used, but it isn't because it is "backing" something. So it sits in a vault doing nobody any good.

    Also, who says finite is good? What happens when the economy grows to the point that you need more gold, but none is to be had. Well then you start experiencing deflation and that is a very bad thing. Deflation is a wonderful way to get people to stop spending, stop lending, and as such to freeze the economy. Remember: Money is only good if you can spend it. Moreover, money is only good if you DO spend it. If everyone hordes money and doesn't spend it, well then what really is happening is people are refusing to trade. That means the economy stalls.

    As you say, gold is only worth what it is because western cultures have an obsession with the shiny stuff and it is used as a hedge. It's real value, in terms of industrial use, is far lower. All those idiots who get gold in preparation for the collapse of society would be sorely disappointed if such a thing ever happened. Gold would be near worthless as it has few uses in a non-industrial society (basically only as decoration) and thus would be worth fuck-all as a currency in a survivalist world. More likely, Metro 2033 has the right answer and bullets would be the closest thing to currency out there (it would mostly just be direct barter).

    1. Re:Also the way you really add value by arb+phd+slp · · Score: 2, Insightful

      Gold would be near worthless as it has few uses in a non-industrial society (basically only as decoration) and thus would be worth fuck-all as a currency in a survivalist world.

      Fail. Gold was highly valued before the industrial revolution. Further, it wasn't just western cultures who found it valuable (unless you include ancient Egypt and the Ottoman empire as either post-industrial or western states).

      But that was based on historical tradition. There have been several generations born in which the meme of "gold=money" has not been culturally transmitted and it has extinguished. The vast majority of the world population today think of gold as a material for jewelry and electronics. Some people are trying to use modern marketing to re-inject that meme into society, with (as can be seen from the comments here on Slashdot) mostly poor results.

      --
      There's a perfect xkcd for my sig but I'm too lazy to look it up. sudo someone go find it.
  26. Well it is already a bad idea by Sycraft-fu · · Score: 3, Insightful

    If there is a hard limit to the total amount of currency that can exist, then what you have is a situation where the currency will not scale with the economy. That means deflation and there's no faster way to kill an economy than that.

    To me it seems like the people who created it are the same kind of gold standard 'tards who cry on and on about inflation without understanding it. They see inflation as "eating up your savings" (which is doesn't so long as you put them in an interest bearing account) and thus think deflation would just be great. I mean you have more buying power for doing nothing! Wonderful!

    Except it badly fucks over an economy. For one, it simply drives down spending. If you can get something for a dollar today, or two of that something for a dollar next week, it makes sense to wait as long as you can. Non-essential purchases are discouraged since the longer you wait, the more your money gets you. While that sounds like it encourages savings what it really does is screw over trade. Money only works if people spend it. People can have as much money as you want if nobody spends it it is worthless, regardless of the form it takes.

    Then there's loans. The ability to make and receive loans goes to hell in a situation of continual deflation. Unless the loan is extremely short term, it won't work. Take a house loan. This is doable because even with minimal to no inflation, you know you can afford it. You know your cost will not go up in percentage terms. However with deflation? No such luck. In a situation of continual deflation, the amount of money you receive for work will go down with time. As such the payments on a loan will be a larger and larger part of income, growing until you can't afford them. To make it work, the loan would have to be offered with a negative interest. But nobody will do that, they'd simply not loan out their money instead as that is a higher rate of return and is guaranteed. Currently people will make loans because the risk of the loan is balanced against having a positive return.

    I could go on, but deflation is an extremely bad thing in the long run, and with a fix currency supply you have guaranteed it. Sounds like your project needs less gold standard survivalist geeks and more economists. Tell you what, run your idea by Dr. Gerry Swanson, you get him to sign off on it, maybe I'll reexamine it. As it stands now it sounds like an extremely bad idea just from an economics standpoint, never mind any technical arguments.

    1. Re:Well it is already a bad idea by DerekLyons · · Score: 3, Informative

      They see inflation as "eating up your savings" (which is doesn't so long as you put them in an interest bearing account)

      Have you actually checked the rates available on savings accounts from reputable banks lately? Inflation outpaces those by a wide margin.

  27. Re:Inflation at the speed of Moore's Law by Teancum · · Score: 3, Interesting

    I'm trying to get this picture straight: The whole purpose of the blocks and CPU time metric is to get involved with the distribution of the initial set of money, not necessarily that the currency itself necessarily requires massive quantities of computing power.

    BTW, it seems like this coin generation issue is something that can be used as an attack vector, and is a different issue than the problems associated with double spending the money. What kinds of safety protocols or protection protocols are in place to keep somebody from simply "minting" money at will?

    "He ought to find it more profitable to play by the rules, such rules that favour him with more new coins than
    everyone else combined, than to undermine the system and the validity of his own wealth."

    I don't buy this argument, as found in the PDF file about Bitcoin. Mind you, I'm just skeptical here and not trying to say it is impossible to resolve, but I don't see the protocols or transactional security which is dealing with this issue.

    "Although it would be possible to handle coins individually, it would be unwieldy to make a
    separate transaction for every cent in a transfer. To allow value to be split and combined,
    transactions contain multiple inputs and outputs. Normally there will be either a single input
    from a larger previous transaction or multiple inputs combining smaller amounts, and at most two
    outputs: one for the payment, and one returning the change, if any, back to the sender.

    "It should be noted that fan-out, where a transaction depends on several transactions, and those
    transactions depend on many more, is not a problem here. There is never the need to extract a
    complete standalone copy of a transaction's history."

    I'm really curious about this particular issue and how a complete copy of the transaction's history doesn't need to be maintained. Again, it gets to the coining of the money issue, where it would seem as if the transaction trace would have to go back to when the money was coined in the first place. Some sort of planned decay of the history certainly could be used in terms of suggesting that after a certain amount of time it can be presumed that a certain bit of transaction history if valid (using a variety of metrics to make that happen that could even go beyond a pure timestamp measurement). Still, the option to view the full transaction history for what fan outs and inputs were associated with that transaction seems like a critical feature.

  28. Re:uhhh.... exactly by Myopic · · Score: 2, Interesting

    Well, they were told to stop with their "timeshare" currency (if that's what you are talking about), because the Constitution gives the Federal government exclusive prerogative to mint coins, but that's not why they went to jail.

    They went to jail for tax evasion. If you live in America, you have to pay American taxes, even if you make up some phony currency for your transactions. Those people didn't pay their taxes.

    I pretty much agree with all of that. Screw those tax cheats.

  29. Re:uhhh.... exactly by witherstaff · · Score: 2, Informative

    For some interesting reading The Creature from Jekyll Island gives a good background on the creation of the Fed. It is the type of thing that you don't need a tinfoil hat to think it looks like a conspiracy.

    As Forbes magazine Described the founding of the fed : Picture a party of the nation's greatest bankers stealing out of New York on a private railroad car under cover of darkness, stealthily riding hundred of miles South, embarking on a mysterious launch, sneaking onto an island deserted by all but a few servants, living there a full week under such rigid secrecy that the names of not one of them was once mentioned, lest the servants learn the identity and disclose to the world this strangest, most secret expedition in the history of American finance. I am not romancing; I am giving to the world, for the first time, the real story of how the famous Aldrich currency report, the foundation of our new currency system, was written...

    When people representing about 1/4 of the world's wealth get together to form a central bank, you know we're going to get screwed.

  30. Time to dust off some old arguments by istartedi · · Score: 2, Informative

    Under the Federal Reserve system, the value of money is controlled by a US organization that's insufficiently transparent. Under a gold standard the value of money is controlled by international traders and mining cartels. This is better... how?

    Gold is "real money". Fine. What people forget is that when you have "real money" and it gets stolen, it's "really gone". That's right. No FDIC insurance for fractions of pennies on the dollar. Instead, theft insurance at rates so high it would effectively negate the inflation protection you seek, plus add administrative costs. Either that, or you roll the dice, but if you get ripped off then... well... see the first part of this paragraph.

    Of course, to solve these problems we could centralize the storage of gold and only trade receipts.... followed by... a bunch of other steps tha got us here in the first place.

    Another aspect of all this: we are several generations removed from the days when metalic standards prevailed. Today's generation buying into the notion of a metalic fix, has no direct experience with the negative aspects of that system. People in the late 19th and early 20th centuries *did* know what metallic systems were like, and they created what we have now to fix that! Now they're dead, and not around to tell you young whippersnappers what it was like.

    --
    For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
  31. It also helps solve a paradox by Sycraft-fu · · Score: 3, Informative

    So we have two seemingly contradictory facts about money:

    1) We need people to save money. They need to keep some money in reserve, to act as a negative feedback mechanism in the event of problems. When people have savings, they can better deal with problems such as job loss and emergencies. In turn this means they put less burden on public services. Also, when people have savings they feel more confident, even during bad times and continue to spend money. Basically, a healthy savings for all people can eliminate problems like the last downturn where there's a massive crisis of faith and people pull back from spending. It can smooth out the economic bumps. As such it is good not just on a personal level, but on a global level.

    2) We need money to move. Money locked in a safe does no good. For money to be useful, it must move around from person to person, business to business. If it sits around, it does nobody any good. If everyone saves a lot and doesn't spend it, well then all they've really done is introduce deflation and hamstring the economy. We need the money moving around, we need it being spent to do any good.

    Hmmm... So what to do about that? Well, what about if instead of locking your money in a safe, you instead give it to a bank, and they loan it out to others? Hey, then we have a system where money can be saved, and yet still used at the same time. Your savings go to increase the money supply elsewhere. It multiplies in a very real sense. Wonderful.

    However, that doesn't work with deflation. The problem with deflation is, as you noted, loans become hard to afford over long periods of time. That means the only way to make them would be with negative nominal interest. Well that doesn't work, even if the real interest is positive. The reason is that you could do better, and get zero nominal interest, simply by not loaning the money. What's more all loans carry risk, so you wouldn't make a loan, even at zero percent nominal interest because there's a risk you would get repaid and thus no loan still has a higher risk.

    Well with inflation, that's not the case. Here your money will lose some value in real terms if you just hang on to it and get zero percent nominal returns. So there is incentive to loan it out, despite taking on some risk. Even if the real return is nothing, you want that. You want your savings to retain their value, so you require a nominal return.

    Deflation is just not good for an economy. Large amounts of inflation aren't either. Really a perfectly flat lien might be the best, no inflation or deflation, but that doesn't seem possible. Looking at historical data it doesn't seem like you can hold it steady state. That being the case, a small amount of controlled inflation is by far a better choice than swings back and forth.

    1. Re:It also helps solve a paradox by Teancum · · Score: 2, Insightful

      Deflation is just not good for an economy. Large amounts of inflation aren't either. Really a perfectly flat lien might be the best, no inflation or deflation, but that doesn't seem possible. Looking at historical data it doesn't seem like you can hold it steady state. That being the case, a small amount of controlled inflation is by far a better choice than swings back and forth.

      I believe that inflation as something good for the economy is a myth that has been perpetuated by those who take advantage of the situation and make a profit off of that inflation. Unfortunately, it has been so ingrained into modern industrial societies for so long that very few if any people really understand just what life without inflation could possibly be like, and too many people do long term financial planning on the presumption of future inflation that any other scenario is seen as foolish or not welcome.

      Yes, deflation stinks if your are borrowing money from a lender that uses compound interest for repayment. With few exceptions, however, most ordinary consumers rarely if ever get any sort of loan at an interest rate which beats inflation, so to suggest that the only way a modern banking system can function is via modest inflation is sort of a red herring too.

      I get the theory that inflation tends to encourage investment, while deflation tends to encourage people putting money into the bank of the master bedroom mattress. It isn't quite as simple as that either, and even with an inflationary monetary policy people still tuck money away in a cookie jar or some other place for temporary safe keeping.

      Inflation tends to favor bankers and people dealing with "financial services" through a variety of means. Since they are also the ones in control of the money supply and the other fiscal management tools, it also implies why their point of view is followed. For more ordinary folks, all they are really interested in is a stable currency and even a little bit of fluctuation isn't necessarily a bad thing.

      For most of the 19th Century, the U.S. Dollar stayed relatively stable compared to the labor needed to get things done. Generally speaking, a dollar paid for a full day's labor of a semi-skilled or unskilled laborer. While there certainly were periods of modest deflation, America was certainly able to grow into a mighty industrial power without the need of constant inflation of the kind that has been dominant in the 20th Century.

      The only times in history when you have seen wild swings of hyper-inflation or huge deflation are usually when the government or some scam artist (often the same but not always) gets involved in the picture and tries to manipulate the currency as a way to make personal profit without having to work. The massive deflation happens usually with something like a Ponzi or pyramid scheme (and related scams) and the scam collapses. Sort of like is happening right now in the U.S. economy, other than the fact that the current U.S. President is also simultaneously spending money on a hyper-inflation model as well. I'm not convinced that those who are trying to perform this balancing act of moderating simultaneously massive deflation through hyper inflation are necessarily going to get the right balance.