Digital currency of dark net

1.

"Dark network" refers to the hidden network. Ordinary netizens can't search and access through conventional means. They need to use some specific software, configuration or authorization to log in

main features

1. Simple access

as long as you master the basic "wall crossing" technology, you only need to set up the computer and download small software to access the "dark network" by hiding your identity. In addition, the "dark network" development organization has also released access software on the smartphone platform to facilitate "dark network" access

2, strong anonymity

"dark network" uses distributed, multi node data access method and multi-layer data encryption to design encrypted IP address for each data packet for communication. In order to obtain the online records of "dark network", we must crack the encryption system used by "dark network"

3. Hidden money flow

the main payment method of illegal transactions in "dark network" is "bitcoin", which is a kind of virtual electronic currency, and is composed of 64 bit digital network domain names with association. Bitcoin does not need the personal information of the buyer and the seller. It gives consideration to both efficiency and security at the technical level. It ensures the convenience of the transaction and the confidentiality of the identity of the two parties

4, ideological confusion

the "dark net" itself is formed by a group of liberals and anarchists, many of whom are against non liberalism or against government. In addition, the US government deliberately promotes the situation, which makes the freedom inclination of the "dark net" very obvious

extended data

dark network is a scientific research project initiated by the U.S. military and implemented in 2003, which is the famous tor project. The main purpose of its research and development is to provide services for Internet users to hide their own identity. Because of this feature,

the dark network has two sides. On the one hand, it can be used to protect the privacy of Internet users, on the other hand, it can be used by criminals to hide criminal traces or engage in other malicious acts

2.

"Gold and silver are not money naturally, but money is gold and silver naturally." this is a sentence Marx said about money

How to understand? In fact, it is very simple that money is the inevitable proct of the development of human life. In the earliest stage, gold and silver were only used as a kind of metal or a kind of ordinary commodity to exchange things. However, with the development of society, people find that gold and silver are easy to separate, easy to preserve, easy to carry and other advantages, so the suitability of gold and silver as currency is reflected, and naturally evolved into currency

What about bitcoin

3.

Bitcoin as a new thing, its existence has its value application, but it is only limited in its era. So if we look at the big time cycle, there are only two forms of bitcoin in the future. One is hidden in the long river of history, and the other is in the era of digital currency, which can lead to the existence of this special value of borderless and creditless endorsement. At that time, a bitcoin may be worth hundreds of thousands of dollars

up to now, bitcoin has been born for more than 10 years, and there have been four big bull markets in these 10 years, but the mission of bitcoin has been achieved to a certain extent, that is, a currency without borders and value endorsement has formed a certain consensus, and led the blockchain technology to the world. So far, the price of bitcoin has been maintained at around us $12000, which is a certain amount different from its previous record high of US $20000. However, whether it can set off a bigger blockchain bull market in the future still needs to wait< br />

4. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
on December 17, 2017, bitcoin reached an all-time high of $19850. On July 27, 2020, bitcoin broke through the $10000 mark again [2]<
Chinese name
bitcoin
foreign name
bitcoin
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encrypted digital currency
circulation platform
Network
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Nakamoto Tsung
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what is the single bitcoin selected
01:07
from the transaction of things In 2008, the global financial crisis broke out. On November 1 of the same year, a person who called himself Satoshi Nakamoto published the white paper bitcoin: a peer-to-peer e-cash system [6] on the P2P foundation website, stating his new idea of e-money bitcoin came out. On January 3, 2009, bitcoin Genesis block was born
there are three bitcoins in total
compared with legal tender, bitcoin does not have a centralized issuer, but is generated by the calculation of network nodes. Anyone can participate in the manufacture of bitcoin, and it can circulate all over the world. It can be bought and sold on any computer connected to the Internet. No matter where they are, anyone can dig, buy, sell or receive bitcoin, And in the transaction process, foreigners can not identify the user's identity information. On January 5, 2009, bitcoin, which is not controlled by the central bank and any financial institutions, was born. Bitcoin is a kind of digital currency, which is composed of a series of complex codes generated by computer. The new bitcoin is made by preset program
whenever bitcoin comes into the view of mainstream media, mainstream media always ask some mainstream economists to analyze bitcoin. Earlier, these analyses always focused on whether bitcoin was a scam. Now the analysis is always focused on whether bitcoin can become the mainstream currency in the future. The focus of the debate is often on the deflationary nature of bitcoin[ 7]
many bitcoin players are attracted by the fact that bitcoin can not be added at will. Contrary to the attitude of bitcoin players, economists have a polarized attitude towards the fixed amount of 21 million bitcoin
Keynesian economists believe that the government should actively regulate the total amount of money, and use the tightness of monetary policy to timely fuel or brake the economy. As a result, they believe that bitcoin's fixed aggregate currency sacrifices its adjustability, and worse still, it will inevitably lead to deflation, thereby harming the overall economy. Austrian economists hold the opposite view. They think that the less the government intervenes in money, the better. The deflation caused by the fixed amount of money is not a big deal, even a sign of social progress
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. Bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network will get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer[ 6]
in 2009, when bitcoin was born, block rewards were 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[ 3]
bitcoin is a virtual currency with limited quantity, but it can be used to cash out: it can be converted into the currency of most countries. You can use bitcoin to buy some virtual items, such as clothes, hats, equipment, etc. in online games. As long as someone accepts it, you can also use bitcoin to buy real-life items
on February 25, 2014, the opening price of "bitcoin China" was 3562.41 yuan. By 4:40 p.m., the price had dropped to 3185 yuan, down more than 10%. According to the historical market data of the platform, on January 27, 2014, 1 bitcoin could be exchanged for 5032 yuan. This means that in less than a month on the platform, the price of bitcoin has dropped by 36.7%
on September 9 of the same year, the US e-commerce giant eBay announced that Braintree, its payment processing subsidiary, would start accepting bitcoin payments. The company has entered into a partnership with coinbase, a bitcoin trading platform, to begin to accept this relatively new means of payment
although the eBay market trading platform and paypal business do not accept bitcoin payment, Braintree customers such as airbnb, a travel house rental community, and Uber, a car rental service, will be able to start accepting this virtual currency. Braintree, whose main business is to provide payment processing software to enterprises, was acquired by eBay in 2013 for about $800 million
on the evening of January 22, 2017, fire coin, bitcoin China and okcoin announced on their respective official websites that in order to further curb speculation and prevent drastic price fluctuations, all platforms will start to collect transaction service fees from 12:00 noon on January 24, and the service fees will be charged at a fixed rate of 0.2% of the transaction amount, and the active transaction and passive transaction rates are the same[ 8] On May 5, according to the latest data of okcoin, the price of bitcoin has just set a new record, reaching a high of 9222 yuan by the time of publication. From 12:00 noon on January 24, China's three major bitcoin platforms officially began to collect transaction fees. On September 4, the central bank and other seven ministries and commissions announced that China banned virtual currency trading
on December 17 of the same year, bitcoin reached an all-time high of $19850
on November 25, 2018, bitcoin broke the $4000 mark and then stabilized at more than $3000[ 9] On November 19, cryptocurrency resumed its decline, and bitcoin fell to the $5000 mark for the first time since October 2017, e to BCH's hard bifurcations and the regulatory authorities' enhanced scrutiny of the initial token issue (ICO)[ 9] At 4:30 a.m. on November 21, the offer of bitcoin on the coinbase platform fell below $4100, a 13 month low
in April 2019, bitcoin broke the $5000 mark again, reaching a new high in the year[ 10] On May 12, bitcoin broke through $7000 for the first time in nearly eight months[ 11] On May 14, according to the offer of coin market cap, bitcoin stood at $8000, up 14.68% in 24 hours[ 12]
on June 22 of the same year, the price of bitcoin broke through the $10000 mark. Bitcoin prices fluctuated around 10200, rising nearly 7% in 24 hours[ 13] On June 26, the price of bitcoin broke through $12000, a 17 month high since January last year[ 14] In the morning of June 27, the price of bitcoin was close to $14000, reaching a new high of the year[ 15]
on February 10, 2020, bitcoin broke through $10000. According to trading data, bitcoin's price rose more than 3%, breaking the psychological limit of $10000 for the first time since October 26 last year[ 16]
on March 12, according to the data of bitstamp, the cryptocurrency trading platform, the lowest price of bitcoin dropped to US $5731 at 19:44[ 17]
on May 8, bitcoin broke through the $10000 mark, a new high since February[ 18]
from 8:00 a.m. on May 10, the unit price of bitcoin fell by thousands of dollars from $9500 in half an hour, with the lowest price falling below $8200 and the highest price difference exceeding $1400[ 19]
at 6 p.m. on July 26, bitcoin rose rapidly for a short time, reaching a maximum of 10150.15usdt, with a maximum increase of more than 4% within the day. This is the first time since June 2, 2020 that bitcoin has exceeded the $10000 level[ 2]
bitcoin has been "forked" more than 100 times in two years. How about those forked coins now
a financial book
like 67
reading 6113
it's easy to be attacked by hackers and ask for bitcoin! Network threat has been related to the life and death of enterprises<
heart of rock
Zan 18
reading 1886
I bet that bitcoin will never die out
entrepreneurial state
Zan 96
reading 15000
visiting bitcoin mine in Xinjiang
Huchou net
Zan 27
reading 4553
overseas mining rise: batch construction of us factories, On November 1, 2008, a self styled Satoshi Nakamoto published a bitcoin white paper, bitcoin: a peer-to-peer electronic cash system, on the P2P foundation website, stating his new idea of electronic money bitcoin came out
Wang yuexinyi, Professor of mathematics at Kyoto University, was born on January 3, 2009. Bitcoin uses distributed ledger to get rid of the constraints of third-party institutions, which Nakamoto calls "blockchain". Users are willing to dedicate the computing power of CPU and run a special software to be a "digger", which will form a network to maintain the "regional chain". In the process, they also generate new money. Business is also extended on this network. Computers running this software are scrambling to solve the problem of irreversible code, which contains several business data. The first miner to deal with the problem will get a 50 bitcoin reward, and the relevant trading area will join the chain. As the number of "miners" increases, the difficulty of each puzzle also increases, which keeps the proctivity of bitcoin in each trading area at about 10 minutes
in 2009, Nakamoto designed a digital currency, namely bitcoin. The booming bitcoin market has gone up and down, and the identity of its founder "Nakamoto" has always been a mystery. Rumors about "the father of bitcoin" involve from the US National Security Agency to financial experts, and also give bitcoin a mysterious aura
according to foreign media reports, computer scientist Ted Nelson released a video on the Internet on Sunday, saying that he has determined that the founder of bitcoin is Shinichi Mochizuki, a professor of mathematics at Kyoto University. The founders of bitcoin have always used

5. For bitcoin, don't invest any more. It's a complete gamble. Remember, don't participate, especially at this stage. The threshold itself is very low. Bitcoin is not money. It can be divided into any large unit, such as 0.0000015 bitcoin. I don't know when the concept of bitcoin was changed into bitcoin. It can be worthless at any time

6.

According to the report, the roller coaster price fluctuation of bitcoin is unpredictable. It reached an all-time high of $20000 in December last year, and then fell to $10000 within one month

According to a new research report released by

Research Institute canaccord genesis, the historical price of bitcoin shows that after several months of integration, the price of bitcoin will continue to rise rapidly for several weeks

In fact, bitcoin is not the only one. Ethereum, the second largest digital currency, has risen by 56% in two weeks after falling to a low of $565 on February 6

7. Calculation ability is the basis of mathematics. To solve mathematical problems, we must first pass the calculation, and pay attention to the calculation. I am Mr. Wang, focusing on primary school mathematics, sharing problem-solving strategies, promoting interesting mathematics, providing family counseling suggestions, welcome your attention. Computing power is not innate. Basic algorithms are graally acquired after primary school. It takes a lot of time to master the four basic operations of addition, subtraction, multiplication and division. Only after the students establish the real number concept system can they carry out the abstract addition and subtraction symbolic operation. The level of operation ability is reflected in the accuracy, speed and flexibility of operation. The following detailed explanation, for your reference<

to cultivate mathematical computing ability
first of all, it should be clear that the learning of mathematical computing content is a systematic and continuous system. Taking the calculation content of primary school as an example, the learning sequence is as follows:

① the number concept system

the calculation of number is basically deepened with the expansion of number field. From the addition and subtraction method within 20 in grade one to the addition and subtraction method within 10 000 in grade three, the larger number in grade four, integer concept has been basically formed and accompanied by the emergence of decimal concept system, The fifth grade is the key stage of the development of the concept of fraction

from integer to decimal to fraction constitutes the cognitive process of primary school students' number concept development, including the size of number, the comparison of number, cardinal number and ordinal number, odd number and even number, digit number, the combination and decomposition of number, which are the preparation for calculation learning<

② the accuracy and speed of operation

learning sequence determines that each stage of computational learning is very important, which is the foundation of the next stage, and consolidating the foundation is the necessary condition for improving the mathematical computing ability. First of all, the operation must be correct, which is the premise, which requires various kinds of operation practice. The third grade must take ensuring 100% accuracy rate of calculation as the practice goal. Only when the accuracy rate of calculation develops, can we further improve the speed. If the basic oral calculation reaches a perceptual formula, we can get the answer immediately

the higher the grade is, the smaller the proportion of basic computing in cognitive resources is. Computing is a kind of program. Only by turning computing into mathematical facts and extracting them at any time can we put more cognitive resources on more complex problems

there is no shortcut, only diligent practice<

③ flexibility of calculation

don't learn some skills training projects of single integer operation. The flexibility of calculation is reflected in children's enlightenment and application of calculation theory. For example, the first grade's method of rounding up ten is the Enlightenment of rounding up the idea of first calculation. If you don't experience the rules and calculation theory, you can't refine the mathematical thought

the higher the grade is, the more flexible the calculation is. To understand and flexibly use the law of simple calculation is actually a thinking process to reasonably deal with the calculation, so that the calculation can achieve a fast and flexible state. The fourth grade is the key stage of quick calculation and skillful calculation of integers. For example, Mr. Wang's fourth grade extracurricular mathematics knowledge of the calculation section

only by contacting with different types of questions, can we make all kinds of skillful thinking and methods to integrate, and the flexibility of calculation is the key to reflect the level of mathematical calculation ability.