Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)hpmailerpublished in(发表于) 2013/12/1 2:37:08 One dollar against us $ 1000， bitcoin is the case，
One against the $ 1000 coins-coins is so, Bitcoin-IT information One dollar against us $ 1000, bitcoin is the case
In a short time, coins become the focus of world attention, ten months ago, a bitcoin per dollar the price of $ 13, and now even the $ 1000 – coins seem to have been very difficult to go back to such a low price. Those people who collect coins wages and sell coins to buy young, now estimated to have eyebrow smile away.
For many people, the coins is a very mysterious new words. What the heck is it? Why is it so crazy? Wired compiled a layman's article explaining in detail the bitcoin the meaning behind the words.
Bitcoin is a digital asset, controlled by the computer and storage, flows in the network. But it is not only an asset, it is also a way to pay, just like PayPal or a credit card, it allows you to hold, but it also allows you to spend it in other places, or exchanged, using methods like email is as simple.
Bitcoin has often been a feature mentioned is "anonymity". The most striking example, is closed for the last month "the Silk Road" Web site, which is famous for its illegal drug trade. But not as mysterious as gangster in the movie deal, its transaction system is available for public viewing, all Exchange of the coins are public, such transparency in economic activities, giving a new sense of confidence.
In addition, easily overlooked, is bitcoin international. It can not only support illegal transactions in currency, ignoring the differences of country, easier cross-border payments. Bitcoin controlled by open source software, it is based on a complex set of mathematical rules, and supervised by the people. As the software runs on hundreds of thousands of computers around the world, bit by bit, changes must be made up of the software we all agree will be done.
At this point, bitcoin is a form of currency on the Internet.
Is bitcoin features above, but its mode of operation, and how the sources then?
Five years ago, personal/collective pseudonym of Satoshi Nakamoto released bitcoin software systems over the network. This software is designed to be capable of running on many machines on a network built by, can also run on personal computers. Run bitcoin software systems, and is also known as "bitcoin miners".
The distributed software able to generate something new, small quantities of coins. These coins are to address a long list of numbers, store known as blockchain online ledger (ledger). Bitcoin number coins designs of slow growth, to encourage people to become "bitcoin miners", so that steady development of the system.
When the system is "dig" up new bitcoins, these coins will be assigned to the "miner". Then, miners are recording this record, go to the and add them to the blockchain, and as compensation, "the miner" can occasionally be a little more coins. Now, every hour the system will reward "miners" 6 times, and 25 coins at a time, but the frequency of this prize will change over time.
Why does bitcoin has value? Because people's needs, like dollars or Yen, or as if Africa 3,000 years ago people used shells in Exchange for something. It is worth mentioning that, bitcoin is limiting supply, although the system has been built coins, but the amount of bitcoins will stop when I reach 21 million. Stop when the system is already predesigned 2140 "dig it".
Such designs are not monetary value to be some centralization of institutions, such as affected by the Federal Reserve, led to a sharp decline. When the system does not generate a new money, then each value of the coins would increase with increased demand, this approach is similar to the deflation. However, because the coins are designed to provide smaller units into 100 million shares (known as Satoshis), it is still very easy to distribute.
Each bitcoin owner has a copy of the encryption "key", only the secret key associated with the public accounts on the Internet after the bitcoin can be known. Bitcoin's account is a complicated mix of strings, such as "1DTAXPKS1Sz7a5hL2Skp8bykwGaEL5JyrZ". You can think of it as E-mail address. If someone were to send you coins, then he'd need this address.
It can be seen from the preceding paragraph, quantity of coins is not important, and that key is very important, if you lost the key, how many "digs" how many coins are in vain. Bitcoin on the Internet Exchange, the secret key is also an essential role, the system must be inspected only after key license exchange.
Those "bitcoin miners" built coins machines, is composed of the bitcoin network itself, they check every transaction. Since the bitcoin system built on a complex mathematical calculations, secret key, and the account numbers did not increase between the two sides, then the transaction will be rejected.
Shield spear, encryption systems can be overcome, and software behind the bitcoin system there may be cracks, let someone else slipped in. However, from birth to the present, coins have been fairly rigorous tests, and it looks quite safe.
For bitcoin holder,, how to manage your bitcoin account address and secret key a bit of trouble. However, the line has a number of known as "wallet" program, to help people trace bitcoin records. You can program computers, cell phones and even the development of website using "wallet".
Have a "wallet", send coins to others, as well as the bitcoin process becomes much easier. On the Web, you can sell a pizza, and then set the use coins to pay. You can donate coins to others. However, more important is that bitcoin can be dealing with the real world – has a mobile version of "wallet", after the meal, wiped his mouth, picked up the phone to scan the QR code on your desktop, you can pay.
Spoken so much, how to get more coins you care more about the problem, is it?
First of all, you need to have a "wallet", which you can get from blockchain.info, and also includes a mobile version. When you have a "wallet", the where can I get bitcoins? Bitcoin transactions from some Web sites get, in the United States can go to Coinbase, BTC in China can China or something like that. Of course, if you want to make large bitcoin transactions or on Mt.Gox or Bitstamp, but you must first pay a large sum of cash, international online transactions can be expensive and time consuming.
When trading, you can be anonymous. However, if you use services such as Coinbase or Mt.Gox, to be provided by a bank account, and audit information. While other bitcoin transactions Web site, LocalBitcoins, allows people to submit personal information and transactions.
However, it is two people meet online and private deals. Because no matter your credit card or bank transactions, all of which are reversible, but coins are not. Bitcoin transactions with others, need to be very careful, which is why many people like to exchange coins for cash partly responsible. Therefore, bitcoin transactions, it is best to choose a place to meet, for a private transaction, you can launch on the Bitcoin Meetup date.
To get coins, "dig it" is a traditional way. This means that your computer will become the bitcoin P2P trading network of one of the nodes, your machine will be running a bitcoin on open source software. In the past, you can just use their own computers to "dig", but now with bitcoin prices rising, "digging" into an arms race-the professional players have targeted design of hardware equipment, as well as flexible and scalable compute resources.
Now, 25 gold coins equivalent to 5,000,003 the number 1 second the machine operation. More images are, this is equivalent to 150 times of the world's most powerful supercomputers. Since joining "dig it" game an increasing number of people/companies, hardware equipment used by more and more strong, this meant coins growing hard to dig. Therefore, the spirit of energy and money-saving starting point, or not to "dig it" way to save coins.
While the bitcoin system security is very high, but still need to be careful about the "wallet" and "secret key" file was stolen by others--because of the bitcoin transactions cannot be reversed, validation of the key documents relating to coins account, so be careful.
Before a hacker named bitcoins invade a "wallet" website input.IO, has been well received by 1.2 million dollars worth of coins. And these coins disappear and cannot be recovered. Therefore, numerous compare professional bitcoin holder, replace the words "purse" and "secret key" Save external hard drive inside, once the transaction is completed, unplug from your computer hard drive, from network world.
Some people even put their coins transfer assets to the real world, such as key logging in on a piece of paper.
The good news is that, theoretically bitcoin ledger who voted in your bitcoin can be found. You can stare at, to see who used your bitcoin address to trade, and if you pass found associated with it, and will be able to know who is the thief. However, this has only just begun to explore ways, so don't expect it.
1个能兑1000美元，比特币是这么回事 - 比特币,Bitcoin - IT资讯1个能兑1000美元，比特币是这么回事
一时之间，比特币成为全球瞩目的焦点，十个月之前，一枚比特币的价格可兑13美元，而现在甚至可以兑1000美元——比特币似乎已经很难再回到这么低的价格上。那些领取比特币工资的人，以及卖掉房子买比特币的少年，现在估计已经眉笑颜开。
对于许多人来说，比特币还是一个很神秘的新词。它到底是什么？为什么那么疯狂？连线整理了一篇深入浅出的文章，详细解释比特币这个词语背后的意思。
比特币是一种数字资产，由计算机控制和储存，能够在网络中流动。但它不仅是一种资产，它还是一种支付的方式，就好像支付宝或这信用卡一样，它允许你持有，但也允许你在其它地方把它花出去，或者是交换，使用方法就好像发邮件一样简单。
比特币常被人提及的一个特点是“匿名性”。最显著的例子，是上个月被关闭的“丝路”网站，它以进行非法的毒品交易闻名。但不像电影里黑帮交易那样神秘，其交易系统是可以公开浏览的，所有比特币的交换都是公开的，这种透明度给在经济活动中，给人一种新的信任感。
另外，容易被人忽视的，是比特币的国际性。它不光可以为非法交易提供货币结算的支持，还无视国别的差异，进行方便的跨境支付。比特币由开源软件所控制，它基于一套复杂的数学规则运作，而且由人来监督。由于软件在全球成千上万台电脑上运行，软件的一点一滴的改动都必须由大家所同意才可以进行。
目前来看，比特币就好像是一种货币形式的互联网。
以上是比特币的特点，但它的运作形式，以及来源是怎样的呢？
五年前，化名为Satoshi Nakamoto的个人/集体在网络上发布了比特币软件系统。这个软件被设计为能够运行在许多机器所构建的网络上，也能运行在个人的电脑上。而运行比特币软件系统的人，也被称为“比特币矿工”。
这套分布式软件能够生成一些新的、小批量的比特币。这些比特币都以一长串数字地址，储存在线上被称为的blockchain的总账（ledger)里。比特币的设计让比特币数量缓慢成长，以鼓励人们成为“比特币矿工”，让系统稳步前进发展。
当系统“挖”了新的比特币，这些比特币将分配给“矿工”们。然后，矿工记录下这个记录，并把它们加到blockchain里去，而作为补偿，“矿工”能够偶尔能得到稍微多一点的比特币。现在，每一个小时系统就会奖励“矿工”6次，每次25个比特币，但这个奖励的频率会随着时间变化。
为什么比特币是有价值的？是因为人们的需求，就好像美元或日元，或者就好像非洲三千年以前人们用贝壳来交换东西。值得一提的是，比特币是限制供给的，尽管系统一直在生成比特币但，但比特币的数量将在达到2100万枚的时候停止。系统已经预先设计好在2140年时停止“挖矿”。
这样的设计是为了货币价值不会被一些中央集权的机构，比如美联储所影响，导致急剧地下滑。而当系统不在生成新的货币，那每一枚的比特币的价值就会随着需求的增加而增加，这种方式类似于通货紧缩。不过，由于比特币在设计上可以分成1亿份更小的单位（被称为Satoshis），它仍然非常容易分发出去。
每个比特币的拥有者都拥有一份加密的“秘钥”，只有这份秘钥与互联网上的公开账户相关联了之后，比特币才能为人所用。比特币的账户是一串复杂难名的混合字符串，比如“1DTAXPKS1Sz7a5hL2Skp8bykwGaEL5JyrZ”。你可以把它视为E-mail地址。如果别人要寄比特币给你，那他就需要这个地址。
从上一段话也可得知，比特币的数量多寡不重要，而那份秘钥非常重要，如果把秘钥弄丢了，那么多少“挖”了多少比特币都是白搭。在互联网的比特币交换当中，秘钥也是必不可少的角色，系统必须检验秘钥之后才许可双方交换。
那些“比特币矿工”用来生成比特币的机器，则组成了比特币交易网络本身，它们检查每一道交易。由于比特币系统构建在复杂的数学计算上，双方的秘钥以及账户的数字没有增加，那么交易就会被拒绝。
有盾就有矛，看上去加密系统也是可以被攻克的，而且比特币背后的软件系统也可能存在裂缝，让别人悄悄溜进来。不过，从诞生到现在，比特币已经经过相当严格的测试，而它看上去相当的安全。
对于比特币的持有者而言，如何管理自己的比特币账户地址以及秘钥稍嫌麻烦。不过，线上有许多被称为“钱包”的程序，能够帮人追踪比特币的记录。你可以在电脑、手机甚至是在程序的开发网站上使用“钱包”。
有了“钱包”，向别人发比特币，以及接收比特币的过程就变得简单多了。在网站上，你可以叫卖一个披萨，然后设置用比特币来支付。你也可以将比特币捐给别人。不过，更重要的是，比特币可以与真实世界进行交易——只要拥有移动版“钱包”应用，吃完饭之后，擦擦嘴，拿起手机扫描桌面上的二维码，就能够支付了。
讲了那么多，如何得到更多的比特币才是你更关心的问题吧？
首先，你要拥有一个“钱包”，这个可以从blockchain.info那里得到，而且还包括手机的版本。当你有一个“钱包”后，从哪里能够得到比特币呢？这个可以从一些比特币交易网站那里得到，在美国可以去Coinbase，在中国可以上BTC China之类的。当然，如果要进行大宗的比特币交易，也可以上Mt.Gox或Bitstamp，但必须首先支付一大笔现金，才能进行昂贵又耗时的国际在线交易。
在交易的时候，你可以匿名。不过，你如果使用Coinbase或Mt.Gox之类的服务，就要提供银行账号，以及审核资料。而另外一些比特币交易网站，比如LocalBitcoins，则允许人们不提交个人资料也能进行交易。
不过，最好还是两人在线下见面，并且进行私下交易。因为不管信用卡还是银行交易，它们都是可逆的，但比特币不是。因此在与别人进行比特币交易的时候，必须非常小心，这也是为何许多人喜欢将比特币换成现金的部分原因。所以，进行比特币交易的话，最好是选择一个地方碰面，进行私下的交易，你可以在Bitcoin meetup上发起约会。
想得到比特币，“挖矿”是传统的方式。这意味着，你的电脑将成为比特币P2P交易网络的其中一个节点，你的机器上将运行着比特币开源软件。在过去，你尽可以用自己的电脑来“挖矿”，但现在由于比特币价格的攀升，“挖矿”变成了一种军备竞赛——专业的玩家拥有者针对性设计的硬件装备，以及可以灵活扩展的计算资源。
现在，25枚比特币相当于要让机器1秒钟进行5百万三次方次数学运算。更形象点的说法是，这相当于世界上性能最强的超级计算机的150倍。由于加入“挖矿”游戏的人/公司越来越多，所使用的硬件设备也越来越强，这意味着比特币日益难挖。因此，本着节约精力和金钱的出发点，还是不要用“挖矿”的方式来攒比特币。
虽然比特币系统安全性很高，但还是要小心自己的“钱包”和“秘钥”文件被别人偷到——由于比特币交易不可逆，秘钥文件又关乎比特币账户的验证，因此一定要小心。
之前有黑客入侵一个名为比特币“钱包”的网站input.io，后，得到了价值120万美元的比特币。而这些比特币就此消失，不可寻回。因此，许多比较专业的比特币持有者，将“钱包”和“秘钥”保存在外接硬盘里，一旦完成交易，就把硬盘从电脑上拔掉，脱离网络世界。
有的人甚至将自己的比特币资产转移到现实世界中，比如说将秘钥记录在一张纸上。
好消息是，理论上比特币总账可以找到是谁投了你的比特币。你可以盯着，看谁用了你的比特币地址来交易，而如果你通过它找到了所关联的人，就能够知道谁是小偷了。不过，这只是刚刚才开始探索的方式，别指望它。
赞