Shanghai BTC plant
The remitter will pay bitcoin directly to the other party according to the address of the payee through the computer or smart phone
after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed
the bitcoin peer-to-peer network stores all transaction history in the "blockchain". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. In fact, blockchain is a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history
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users can buy bitcoin, and at the same time, they can "mine" bitcoin by using computers to perform a large number of calculations according to the algorithm. When users "mine" bitcoin, they need to use the computer to search for 64 bit numbers, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, then they will get 25 bitcoins
from 2012 to 2014, bitcoin swept the world, and graally formed the "virtual currency" instry chain represented by bitcoin. This is a change in the financial instry and a new proct of the combination of the financial instry and the Internet. It represents a financial milestone in the new era and marks a new chapter in the history of the Internet. Bitcoin fund is one of the derivative procts represented by bitcoin in the era of "virtual currency"
according to the relevant news reports of Fuhui China, bitcoin fund will be open for operation in the autumn of 2014. Fuhui bitcoin fund, as the world's first operation mode of mutual benefit and win-win with financial management mode, is original and full of temptation and challenge
bitcoin was invented by "Zhongben cong" in 2009, Using the computing power of the chip, the boring and repetitive process of constantly "hash collision" in the blocks generated by the bitcoin system to win the bookkeeping right and thus obtain the system reward of bitcoin is vividly called "mining" in the bitcoin instry, and the professional staff engaged in this work are called "in the first few years of bitcoin operation, An ordinary laptop can play the role of "mining". However, the entry of Chinese miners has completely broken the balance of this situation. Relying on professional mining machines designed and made in China, they staged one after another bitcoin world computing power arms race, raising the threshold of "mining" tens of thousands of times
Bitcoin is a kind of electronic currency / network virtual currency
bitcoin: also known as "bitcoin", is a kind of network virtual currency. Internet users can use bitcoin to buy some virtual goods, such as clothes, hats, equipment, etc. in online games. Internet users can also use bitcoin to buy real goods
on February 26, 2014, Joe Manchin, a Democratic senator from West Virginia, issued an open letter to a number of regulatory authorities of the US federal government, hoping that the relevant authorities would pay attention to the status quo of bitcoin's encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency
from 12:00 noon on January 24, 2017, China's three major bitcoin platforms officially began to collect transaction fees
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currency features:
1, decentralization: bitcoin is the first distributed virtual currency, the whole network is composed of users, and there is no 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
advantages of bitcoin:
1, it is completely decentralized, without issuing institutions, it is impossible to manipulate the number of issues. Its distribution and circulation are realized through open-source P2P algorithm
2, anonymity, tax exemption and supervision free
3, robustness. Bitcoin is completely dependent on P2P network and has no distribution center, so it cannot be shut down externally. Bitcoin price may fluctuate and collapse, and many governments may declare it illegal, but bitcoin and its huge P2P network will not disappear
4, borderless and cross-border. Cross border remittance will go through layers of exchange control agencies, and the transaction records will be recorded by many parties. But if you trade with bitcoin, enter the digital address directly, click the mouse and wait for the P2P network to confirm the transaction, a lot of money will pass. It does not go through any regulatory agencies and will not leave any cross-border transaction records
5, Shanzhai people are difficult to survive. Because bitcoin algorithm is completely open source, anyone can download the source code, modify some parameters, recompile, and create a new P2P currency
but these counterfeit currencies are very fragile and vulnerable to 51% attacks. Any indivial or organization, as long as it controls 51% of the computing power of a P2P currency network, can manipulate transactions and currency value at will, which will be a devastating blow to P2P currency
many counterfeit coins die in this link. The bitcoin network is robust enough. If you want to control 51% of the computing power of the bitcoin network, the number of CPUs / GPUs required will be astronomical
the weakness of bitcoin
1, the fragility of trading platform. The bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
2, the transaction confirmation time is long. When bitcoin wallet is first installed, it will consume a lot of time to download historical transaction data blocks. While bitcoin transaction, in order to confirm the accuracy of data, it will take some time to interact with P2P network, and the transaction will be completed only after the whole network is confirmed
3, the price fluctuates greatly. Due to the intervention of a large number of speculators, the price of bitcoin for cash fluctuates like a roller coaster. Making bitcoin more suitable for speculation rather than anonymous trading
4, the public did not understand the principle, and the traditional financial practitioners resisted. Active netizens understand the principle of P2P network and know that bitcoin has no legal person to manipulate and control
but the public doesn't understand, and many people can't even distinguish between bitcoin and q-coin“ "No issuer" is the advantage of bitcoin, but in the view of traditional financial practitioners, "no issuer" currency is worthless
How to evaluate Li Xiaolai, a New Oriental teacher who is worth 10 billion by bitcoin
according to the self claim and related description, Li Xiaolai has the following aura:
China's richest man of bitcoin
one of the most domestic holders of bitcoin
New Oriental master
author of many best sellers
famous angel investors, etc.
are you surprised? Looking at the background, Li Xiaolai is also a big man, but few people seem to know him well
on the contrary, it is Luo Yonghao, who was mentioned by him, who is well known in the science and technology circle
but Lao Luo never interacted with him after he became famous, whether it was the most beautiful New Oriental period or the most painful mobile phone with a hammer
who is the "richest man of bitcoin in China"? Let's take a look at his history
When Li Xiaolai was a student, he won many awards in computer competitions. In his sophomore year of high school, he participated in a competition held in Jilin Province. He was originally the first to win the competition. Because of a teacher's protest, he was canceled. The top three in this competition were recommended to Tsinghua. Hit by this, he did not play a normal college entrance examination, into Changchun Universityafter graation, I started sales first, and I once worked as a general agent and made a lot of money. But because he was treating his father, he ran out of money
Later, like Luo Yonghao, he went to New Oriental. On the one hand, he became a teacher of English, on the other hand, he published "21 day breakthrough of TOEFL core vocabulary" and other booksthere was nothing special here, until he met bitcoin
In 2011, Li Xiaolai learned that the transaction price of bitcoin exceeded $1. Although he didn't understand why it was so expensive, he bought 2100 coins in the first placewhen bitcoin rose to $24, he decided to "mine" and buy hardware equipment to dig coins. As a result, we didn't succeed this time. We invested more than 600000 yuan in partnership with others and only got more than 100 yuan
However, through this experience, he devoted himself to the field of virtual currency. Since then, there have been continuous acquisitions. Until the end of 2013, the Wall Street Journal mentioned:"a newly established group of bitcoin observers in Beijing said that Li Xiaolai, 41, is one of the most bitcoin holders in China. Li did not want to specify the amount he held, but said he held six figures, with the first digit of one. In other words, the value of bitcoin he holds has exceeded $100 million. "
What is life like after becoming a billionaire According to Li Xiaolai, one is to learn general ecation course, called "seven years", which enables people to learn skills; The other is the business school, which is called "growing together" to learn and share in the instrypublished a book, "seven years is a lifetime", and played a new trick: pay more than 2500 yuan, you can enter a group. What are the advantages of joining this group? Chapter updates of this book will be in this group first
open a column, and open a column "road to wealth and freedom" on the app. Each paying user needs to pay 199 yuan. In 2017, his column users have exceeded more than 100000, that is, he has gained more than 30 million in this column
a person who has already been rich and free can teach "the road to wealth and freedom" on a knowledge payment app with a small audience
It's always fun to think about itmaybe, as Li Xiaolai wrote in his Internet entry, "strive to make some intellectuals rich first"
in fact, Li Xiaolai has not yet shown people the evidence that he owns 10 billion bitcoins, which is very simple and there will be no loss, but he has never done so. Therefore, it is doubtful whether he owns as many bitcoins as the outside world
all the information about his worth of 10 billion bitcoin comes from his unilateral statement to reporters. Around 2013, when bitcoin began to be popular, the financial headlines of major media began to introce the legendary figure who was a former New Oriental teacher. Li Xiaolai told people that he started to be the upstream instry of bitcoin two years ago, renting factory buildings in a place where there is no shit, and using cheap land rent and electricity cost to mine
of course, many people don't buy it. They ask Li Xiaolai to show evidence. They just need to make his wallet public. Because of the encryption design of bitcoin, such display will not affect his financial security at all, but Li Xiaolai always avoids talking about it
because for Li Xiao, no matter whether he has so much money or not, it's his best strategy not to show it publicly, because it will give people a sense of mystery, a sense of shadow wealth, and help him with other businesses
No matter whether he has 10 billion worth of bitcoin or not, Li Xiaolai seems to be a successful person, because he is always on the cusp of the new wave in recent years- - talking about the mining cost of bitcoin -
the first thing to consider is the cost if you want to make money. If the profit is greater than the cost, it is worth doing. We all know how much bitcoin costs, so let's calculate the cost
1. Mining machine cost: the "number" of bitcoin is a problem-solving process, which can't be calculated by human brain alone. Therefore, mining people need to buy mining machines and keep calculating. The more mining machines, the stronger the computing power
2. Electricity charges: mining machines are big consumers of high power. How much electricity does it consume? Let's put it this way. At present, the electricity consumption of bitcoin and Ethereum mining has surpassed Jordan, Iceland, Libya and other small countries, ranking 71st among all countries and regions in the world. You want to cry when electricity is expensive
3. The rent of the place where the mining machine is placed: because the mining machine consumes a lot of electricity, the power supply load of ordinary residential buildings can not be guaranteed at all, so the mining must rent a commercial site separately, and the rent is much more expensive than that of ordinary residential buildings
4. Operation cost: in order to ensure the computing power, the high-power mining machine needs to work 24 hours, which requires someone to maintain it at any time. When the mining machine is in trouble, the cost of hiring someone is required; At the same time, the mining machine is very delicate. If it is too hot or too cold, the vegetables will be stopped. Therefore, the measures of cold air and cold water insulation are needed to help the mining machine run. This is another expense
5. Mining machine update cost: because bitcoin is becoming more and more difficult to dig, the machine that was able to dig a month ago may not be able to dig anything today, and the market will also launch mining machines with greater computing power. The original mining machine is not worth money immediately. If you want to maintain computing power, you need to buy mining machines again
the above bitcoin mining costs all have a marginal effect, that is, the larger the volume is, the lower the corresponding cost will be. Therefore, some super large mines have been built
bitcoin g in the mine will enter the mine pool and be distributed by all participants. Large mines will be built in places where labor and electricity are cheap, such as Venezuela, the legendary miner's paradise, or Iceland, where the climate is favorable and electricity is cheap
as for the cost, everyone will be different. Let's take a look at an average: in 2017, according to the data of elite fixtures, a research institution, Venezuela is the cheapest of 115 mining countries, which is 513 US dollars, while South Korea is the most expensive, which is 26170 us dollars
China's mining cost is US $3172, which is relatively low among 115 countries. However, the cost is an average value. Large mines with low electricity prices must be much lower. If you are a lone ranger, the cost will rise sharply
in a word, if you really want to make money by mining, first of all, unless you are rich enough to build a mine with thousands of machines, you'd better join a mine to dig together. Although you have to share the money, it's still appropriate in the long run because it can greatly rece costs and improve computing power
secondly, whether you dig by yourself or join the mine, you must choose the place with low electricity cost, and the city with abundant hydropower resources is preferred, because hydropower is the cheapest source of power generation in China at present.
bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system.
According to reports, in April this year, Hanshan county power supply company found that the line loss of a section of high-voltage line in Lintou town of Hanshan County suddenly increased, nearly 10 times higher than the normal value. After section by section investigation, the line loss finally pointed to an abandoned factory in Lintou town
it is reported that after verification by the electric power department, Ma madly stole nearly 150000 kwh of electricity in more than one month. Ma was detained for theft. The case is under further investigation
