Bitcoin duration
It was officially born on January 3, 2009
since 2015, the future of bitcoin has become more and more uncertain. On the one hand, bitcoin fell as much as 55.55% against RMB last year; In 2015, bitcoin fell by more than 30% against the RMB in the first half of January alone
bitcoin's "falling" reflects the "self-healing" of its value after "fanaticism" to a certain extent. According to statistics, in 2013, bitcoin rose from 1 ∶ 13.59 to 1 ∶ 731, with an annual increase of 5300%. This speculative driven inflation has affected the virtual currency property on which bitcoin relies
on the one hand, no country has defined it as a legal currency. On the other hand, in 2014, the US dollar rose significantly, and the prices of oil and bulk commodities fell correspondingly. The price trend of bitcoin is the same as that of the latter, becoming part of the asset allocation of some speculators, which highlights that its asset attribute is far greater than the monetary attribute
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Security and credit risk have also become the reasons for the decline of investor confidence. Mt. GOx, once the world's largest bitcoin exchange, claimed in March last year that it had lost all its assets e to hacker attacks. Recently, it was revealed that its lost bitcoin was probably e to internal system manipulation
the regulatory environment of bitcoin is not optimistic, and Russia, Thailand and other countries have begun to implement strict control on it. In addition, the global stock market performed well last year, resulting in the diversion of bitcoin investment funds, and the crazy "mining" activities also rapidly increased the supply of bitcoin, which may lead to a trend of oversupply in the short term, leading to a sharp drop in the price of bitcoin
it's been a long time. How do you prove that it's a fraud and how to collect the evidence are all problems.
The total number of bitcoins is 21 million
in 2009, when bitcoin was born, block reward was 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25
when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million
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monetary characteristics
1. Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom
2. Global circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself
4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution
5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay
6. Cross platform Mining: users can explore the computing power of different hardware on many platforms
Bitcoin is a kind of network virtual currency. Bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system. Assuming that the mining computing power is 100 mhash / s and the total computing power is 4000 ghash / s per day, 3600 bitcoins can be g out every 24 hours
China's computing power has accounted for more than 75% of the world, that is to say, 75% of bitcoin in the world is made in China. How long does it take to dig a bitcoin
bitcoin used to be very good at "digging", which can be done by ordinary computer CPU, and it can automatically "solve problems" by downloading software. But with the rise of currency price, more and more people want to "solve the problem", and the difficulty of mining is also increasing. Now, the amount of computation needed to dig a bitcoin is beyond the reach of ordinary people. Ordinary computers can't afford it
instry insiders said that in 2014, 100 bitcoins were generated from 500000 yuan of electricity charge per day, and the cost of electricity charge alone was 5000 yuan per coin. But now, the same cost has more than doubled, and the electricity cost of each bitcoin is as high as 10000 yuan
in the generation mechanism of bitcoin, mining reward is decreasing. At the beginning of the birth of bitcoin, the miners could get 50 bitcoins for each page of the ledger, and then 25 bitcoins for each page of the ledger, decreasing in turn. It's like digging gold. At first, it's more and less. The time point at which each new reward is reced by half is called half bitcoin proction
assuming that the mining computing power is 100 mhash / s, the total computing power is 4000 ghash / s per day in 2014, and 3600 bitcoins are g out every 24 hours
now, we can understand the difficulty of bitcoin digging in this way, which is equivalent to 100 million dice throwing numbers less than 100 million and 50 million. Whoever throws them first will get the bookkeeping right. At this point, 1050 million is a hash value. The process of throwing dice is called hash collision. The unit of mining power is the number of hash collisions per second
at present, the computing power of bitcoin in the whole network has reached 2.36 billion hash collisions per second, which is equivalent to the number of water droplets in more than 200000 50 meter long standard swimming pools. But even with such a large amount of computing power, it will take about 10 minutes to hit a hash value that meets the requirements
in 2012, bitcoin's output was halved for the first time, and in July 2016, bitcoin's output was halved for the second time. At present, 12.5 bitcoins are awarded for recording one page of account book. The next halving will take place around 2020, and the total number of bitcoins will not increase by 2040, with a total of 21 million
Related videos: how long does it take to dig a bitcoin
this depends on the CPU computing time of your computer, and on your network speed. If you use an ordinary home computer or a personal mobile phone. You don't have to get a bitcoin a year
unless there are more powerful mining machines. Of course, it will cost more. Unless you don't invest in mining machines, you invest in illegal software. Let these illegal software invade other people's computers and mobile phones. Other people's computers and mobile phones do a lot of bitcoin computing and mining. In this way, the cost of mining machine, electricity, flow, heat dissipation and so on are saved. But we need to know that this is a violation of national laws. This will also allow other people's mobile phones to carry out a lot of calculations after power on, encroach on other people's memory, and make other people's mobile phones scrapped earlier< br />
isn't this idea for fear that the world will not be in chaos? No, no, it's a cruel reality. If we look back at the birth of bitcoin, we will find that the root cause of bitcoin is that the US subprime mortgage crisis has spread to the whole world, resulting in the disorder of the world's economic system, and various countries have issued money printing policies, giving birth to bitcoin, such a "devil of the world". The inventor Nakamoto told economists all over the world, In fact, you can still play like this
bitcoin actually allows people to return to a credit controllable system, but it's too far ahead of time and leads to too big a step. Therefore, from the current point of view, bitcoin is more similar to gold and other safe haven assets. This kind of image is just a superficial likeness. Bitcoin has many scientific and technological advantages in its essence, but it can't play e to many restrictions for the time being. Therefore, if bitcoin wants to rise rapidly, it still depends on the "instability" of the economic system
this kind of thing has happened before. The Bank of Cyprus incident once pushed bitcoin soaring. Now, if there is another "second in Cyprus", I believe bitcoin will have a chance
is this a dream? No, the financial system at this stage has exposed various kinds of crisis. Russia's economy seems to be collapsing because of the fall of crude oil price, a lot of local debts in China can't be paid off, the government is playing hard to cut interest rates and reserve requirements, and the European debt crisis is getting worse and worse... Today's society is in the information age and the Internet age, If the spark can't be fixed, light the powder keg
the possibility of a rapid outbreak of economic crisis still exists, but no one can say for sure. Who knows whether the world will be transformed into a fast lane for a long time and will not be sick again? Marx said that economic crisis will appear periodically in capitalist society, but when will the next big outbreak take place
maybe in more than ten years, maybe in the next second, heaven or hell, there is no way to check.
Yes, very much
let's take an example:
get up a little hungry in the morning and go out to buy a pancake to eat
the pancake seller said: 0.000001 bitcoin, please pay
You say: OK. 0.000001 bitcoin has been paid, please confirm After1 minute: please confirm
After2 minutes: please confirm
After3 minutes: please confirm
After10 minutes: please confirm
As a result, the boss finally confirmedjust now, because your blockchain fork is confirmed to be invalid, the transaction was unsuccessful. Please pay 0.000001 bitcoin again
you said: mlgb, it's too hard. But I have already eaten it. I can't help it. Pay again. Please confirm
After1 minute: please confirm
After2 minutes: please confirm
After3 minutes: please confirm
After10 minutes: please confirm
As a result, the boss finally confirmedjust now, because your blockchain fork is confirmed to be invalid, the transaction was unsuccessful. Please pay 0.000001 bitcoin again
you say: boss, I'm wrong. Shall I spit out the pancakes for you
So it can't be used At present, everyone is short selling Write an article tomorrow and tell us about it. See my blog: Tech help - Xiaocui says blockchain: how does bitcoin's Curse of wealth justify itself24 hours a day.
1 this question is very important. The foreign exchange market is different from the stock market. It has no exchange and is a discrete global trading mode. The essence of the foreign exchange market is the inter-bank market, that is, the market in which the world's major banks trade with each other. Because the trading volume between them is very large, ordinary investors can not participate in it, so there is a platform business. These platform providers build a bridge between retail investors and the interbank market. When retail investors place an order, they are actually trading with the platform business, and the platform business uses the funds of retail investors to trade with the bank. So, it is the platform that provides you with margin service, and the margin will stay on the platform for the time being. As for the economic line you mentioned, it is actually a secondary agent. They are the agents of platform companies, so they charge more commissions
2 your reasoning is a little complicated, so you should try to use the common measurement standards of foreign exchange instry for calculation. Take Europe and the United States as an example, assuming that the exchange rate is 13000, we call one ten thousandth of the exchange rate 1 point. One hand contract is US $100000. Suppose our account is US $10000 and the margin is 1%. Now we buy a first-hand contract with a margin of $1000. At this time, the margin balance is $9000. If the exchange rate drops by one point, our balance will decrease by 10 US dollars. If the exchange rate drops 900 points, the margin balance becomes zero. These changes are reflected in your account, and they are all immediate
in fact, when the margin balance is close to zero, it is generally about 10 points, that is, about $100, the platform will force you to close the position, that is, the so-called burst position. At this point, you have about $1100 left in your account. In actual transactions, margin is used to prevent sudden major changes in the market price, generally will not be used. Therefore, there is no need to worry about platform providers
however, in order to win customers, the mainstream platforms often adopt more radical methods. When the margin balance is zero, they still keep the position of retail investors and start to lose margin. Take the above example as an example, the margin balance begins to turn negative. For every 1 point decline in the market, the margin decreases by $10. When the margin remains about 10 points, that is, about $100, the platform will forcibly close the position. At this time, the account balance is only about $100, which is a complete burst
I think the above answers your third question at the same time
4 if you buy Canada Japan, platform vendors actually need to use US dollars as a bridge to exchange for two times, so the gap between Canada and Japan is the sum of Canada and the United States and Japan, or even larger. However, as a retail investor, you don't have to think too much about it. It's all the work of the platform Shang Dynasty. You just need to know that if you add one day fluctuation point, 0,1 contract fluctuation is 1 / (0.01 * US Japan exchange rate) US dollars
however, it is worth mentioning that the euro / yen exchange rate in the cross section is quite special, because the trading volume is very large, it is often direct trading, and it does not need to be mediated by the US dollar, so the currency spread is relatively small on many platforms
I hope I can help you.