Influence of World War on BTC
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC
BTC (business to customer)
also known as B2C, e-commerce according to a classification of trading partners, that is, commercial institutions to consumers of e-commerce. This form of e-commerce is generally based on the network retail instry, mainly with the help of the Internet to carry out online sales activities
B2C mode is the earliest e-commerce mode in China, marked by the formal operation of 8848 online mall. B2C means that enterprises provide consumers with a new shopping environment through the Internet - online store, where consumers shop online and pay onlinebecause this mode saves the time and space of customers and enterprises, and greatly improves the transaction efficiency, especially for busy office workers, this mode can save valuable time
two BTB (business to business)
also known as B2B, refers to a kind of Internet market, which is the marketing relationship between enterprises. It combines the intranet with customers through B2B website, and provides better service for customers through the rapid response of the network, so as to promote the business development of enterprises. In recent years, B2B develops rapidly and tends to be mature
three otos (online to offline)
also known as o2o, namely "online to offline". The core of the business model of oto is very simple, which is to bring online consumers to real stores, pay online to buy offline goods and services, and then enjoy offline services
extended materials:
e-commerce is a business activity with information network technology as the means and commodity exchange as the center; It can also be understood as the activities of trading activities and related services in the form of electronic transactions on the Internet, intranet and value-added network. It is the electronization, networking and informatization of all aspects of traditional business activities
e-commerce usually refers to a wide range of business and trade activities all over the world, in the Internet open network environment, based on Browser / server application mode,
buyers and sellers do not meet each other to carry out a variety of business activities, to achieve consumer online shopping, online transactions and online electronic payment between merchants, as well as a variety of business activities, trading activities Financial activities and related integrated service activities are a new business operation mode
governments, scholars and business people in various countries have given many different definitions according to their own status and different angles and degrees of participation in e-commerce. E-commerce is divided into ABC, B2B, B2C, C2C, B2M, M2C, B2A (B2G), C2A (C2G), o2o, etc
At the same time, network marketing is also a proct of e-commerce, and for network marketing, it is necessary to make a good network marketing plan before doing it, so as to facilitate the implementation of the plansince October 1, 2018, the Ministry of finance, the State Administration of Taxation, the Ministry of Commerce and the General Administration of customs have jointly issued the new regulations on tax exemption for e-commerce export enterprises in the comprehensive pilot zone of cross border e-commerce
the dream fund is an entrepreneurial business selection. In the process of holding, there is BTC, which is to let the contestants manage a manageable tennis club, and finally see who wins the most profitable
refer to:
1. Business plan audition - Top 50
in the first stage of selection, the full version of the business plan will be selected
the selection will be completed by the senior judges of the organizing committee, and the judges will give professional comments on some of the projects. In the first stage, a total of 50 teams and indivials providing excellent business plans are selected to participate in the next round of selection
2. The selection of prospective entrepreneurs: 50 in 30
this stage is divided into three parts: business plan evaluation, on-site propaganda and on-site defense. The shortlisted 50 teams will be divided into three groups, each of which will give lectures on campus according to their own business plans in three universities, and receive questions from the jury at the same time. The organizing committee will publish the shortlist of 50 teams on the official website of "Dream Fund", as well as the grouping situation of the shortlist, the time and place of campus publicity, and the time of submitting the demonstration text of the business plan. In the second round, 30 indivial teams will be selected to enter the final election of "Dream Fund" and "BTC (BOT Tennis Club) top 10 entrepreneurial stars"
3. "BTC star of entrepreneurship" general election - 30 into 10
"BTC star of entrepreneurship" selection is divided into three parts: business plan propaganda, on-site defense, talent show. BTC star will finally select 10 team indivials. At the same time, the "online public version" business plan with the highest network support rate as of the day of the runoff was announced. The indivial team was selected as the "Internet popularity star"<
4. BTC Star Award Ceremony
all the top 30 team indivials will be invited to participate in the "Dream Fund" award ceremony: the top 30 team indivials (excluding the top 10 venture stars) must send one representative to participate in the "Dream Fund" award ceremony, and all the top 10 venture stars will participate in the award ceremony. BTC star will be honored, awarded and signed at the ceremony
at the ceremony, the "lunky star" was selected as the winner of the live camera lottery. The ceremony will present prizes to the 30 shortlisted indivials
5. BTC Star Training
in December, the Organizing Committee of "Dream Fund" will set up an expert group to conct special, targeted and targeted training for BTC star in terms of tennis club operation. During the training period, BTC star will be assessed regularly, and the qualified team will start "Dream Fund" to operate the club with 50000 yuan< BTC venture star will officially launch BTC tennis club on January 1, 2011. After the start of the club, the Organizing Committee of "Dream Fund" will have an expert group to provide advice and help for the club. The club must submit the income and expenditure report and operation analysis to BOT every month. Bot will supervise the operation of the club from time to time
the management right of the tennis club operated by the winning team / indivial using the 50000 fund belongs to the winning team or indivial, and the ownership belongs to the sponsor.
Novice first of all to know how to calculate your cost, recharge, trading, cash, there are fees. At least you can understand the K-line. There are a lot of people on the K-line. You can look at it casually and understand it. You need to be risk aware. Bitcoin is a high-risk and high profit investment. It may double overnight, or BMW may become a bicycle overnight. At the beginning, we suggest a small amount of investment
but it's hard to get bitcoin for indivial mining, so it's basically large-scale mining, and you need to cooperate with the mine pool. So if you still want to make money by mining, at present, the most suitable mining method is cloud mining or mining machine hosting. After all, the era of single person mining is over
Heavy weight! What kind of information is released behind the people's Daily's re evaluation of special currency
April 18, 2018
as the wind vane of policy, people's Daily has a self-evident influence on all walks of life. On April 16, people's Daily published a comment on bitcoin and other digital currencies, to the effect that it is difficult to ban digital currencies completely, and landing payment should be opened. For a time, it triggered a big discussion on policy risk in the currency circle. Why did people's daily comment on bitcoin again? Does this mean that China will lift the ban on bitcoin? Today, I'd like to analyze the information hidden behind the people's daily article
therefore, it is boldly predicted that there can only be one form of bitcoin and blockchain enterprises in the future, that is, the form of Instrial Park supported by the state. As the saying goes, bitcoin is not a good blockchain if it does not solve the employment rate. At present, the whole market is not mature, and the state will not prohibit OTC trading for the time being. However, with the increasing economic risks, the supervision of the currency people will be more and more strict
masturbation is a self defiling behavior. This is an unnatural behavior that exists in both sexes. The perpetrator can molest his body without passing others. Through various unclean fantasies, they intend to imitate and obtain the supreme happiness of the senses. Masturbation is vulgar and shameful in modern history Here, even for a brief moment, desire and fantasy drown morality and principle; Strong self-consciousness breaks through the wasteland of sexual desire and enters into a luxurious world imagined by masturbators themselves. For a long time, masturbation has been hovering between social disdain and self satisfaction
masturbation is a bad habit of civilized society, and the only way to escape self-restraint mechanism and seek happiness: masturbation can't be stopped and restrained, when men and women are completing their sexual enlightenment, then masturbation is used to relieve sexual desire and "rape their own bodies." The medical profession has summed up a long list of symptoms caused by masturbation, including tuberculosis, epilepsy, papules, madness, general emaciation, and premature death. Masturbation is "far more terrifying than smallpox."
the consequences of masturbation will be as described in the Bible - death. Death is not God's punishment, but comes from the twisted nature of masturbation. In a sense, masturbation and other subsequent behaviors have largely confirmed Freud's theory that it is easy to commit a crime, but it is difficult to erase the mark of crime. The idea that masturbation will not be detected and punished is a complete illusion
whatever the reason, masturbation is a very popular behavior, because people who inlge in masturbation do not know that they are carrying out wrong behavior, and think that this kind of behavior is not constrained by conscience and society, and will not lead to serious consequences. So masturbation is a pleasure of falsehood, a reversal of reality, so it is dangerous and needs to be strictly prevented. Masturbation is a kind of harm to health, reason and marriage, even to self pleasure
it can be seen that ignorance is an important reason for the widespread masturbation. As a result of debauchery, loneliness and boredom, or through the guidance of peers, some young people begin to learn to inlge themselves by masturbating, but they don't know that this behavior is not only wrong, but also extremely harmful. One reason for ignorance is that masturbation is not known. Other unclean behaviors are often detected, while masturbation is not. People who masturbate don't need to feel shame or guilt, and they won't be restricted by traditional morality
masturbation, a "deceptive vice", is "the most harmful of all behaviors". James Paget, Queen Victoria's doctor, wrote in 1879 that the harm of masturbation is actually a form of sexual hypochondria. Dr. Paget also deplores this behavior. Masturbation, he said, is a sinful act, "dirty, unclean, morally corrupt, and abandoned by both man and God."“ Playing with your body "and so on
masturbation is a sign of self depravity and self despair. This new sexual vice is more attractive to people than any other behavior. It's particularly worrying because people who engage in this kind of behavior think they can go unpunished - "masturbation in particular" is not easy to detect. All men and women are more likely to succumb to masturbation than other sexual vices
a case experienced by Professor Frederick Hoffman of Harley University in Germany. Professor Hoffman is famous for the theory of "essence Qi". He believes that there is a fluid like "essence Qi" in the human body, which is transmitted from the nerves to the muscle tissue and maintained in a state of contracture. This view is widely spread, and that masturbation e to excessive loss of "essence", so it will lead to mandibular relaxation, weakness and other symptoms
masturbation is the total negation of all good things in human sexual life, which causes serious consequences and is the root of all evils, moral corruption and deviance. Fowler, a skull physiologist in the 19th century, wrote a book, which said that masturbation is "the sin of sin, the evil of evil", which will lead to countless "sexual corruption, impotence, various diseases and moral corruption, the total number of which is far more than the sum of other abnormal sexual behaviors". Although Fowler does not deny that this kind of behavior proces self pleasure, others do not. Dr. Kellogg, the founder of the cereal Kingdom and the founder of the famous health care reform movement in the United States, believes that masturbation is the worst of all human sexual quirks. He made no secret of his aversion to masturbation. He called masturbation "the great enemy of mankind" a more "abominable evil" than the "ugly act" of private sex trading
Lord badenberg, the founder of the boy scout movement, said that if this "obscene" behavior becomes a habit, it will soon "destroy people's body and spirit". Those unfortunate people who are tortured by this kind of behavior will eventually be doomed to "enter the madhouse". In the foreword of another widely circulated pamphlet, the leader of the boy scouts in the United States warned that he had witnessed a boy about 12 years old who had to be sent to a madhouse for excessive masturbation. There is almost no cure for the disease. Even older boys are not immune
the book warns everyone that improper playing with private parts will lead to mental disorder, which should be resisted by any normal male. Girls were warned more seriously. If they masturbate, they will have a complete mental breakdown. They will not only be sent to a madhouse like boys, but also be likely to die early. The pamphlet was highly recommended by the president of the Social Health Association of the American women's Club Federation
it is immoral to let the serious consequences of lack of sexual restraint spread, and such a harmful behavior, that is, the unnatural behavior of masturbating to obtain satisfaction, is by no means the solution to the problem. Masturbation is a kind of "depraved behavior deviating from social morality". It does not bring "spiritual relief" to the perpetrators. On the contrary, it makes the perpetrators "physically and mentally damaged, and even lead to mental disorders". The consequences of masturbation are "heinous."
masturbation is the most terrible of all sexual instincts. The basic purpose of sexual intercourse is to breed healthy offspring, so masturbation will not only have fatal consequences on the indivial's reproctive capacity, but also harm the society. There was such a warning in a western sexual health guide that once people "violate the laws of nature", they will lose their reproctive capacity forever. Masturbation is not only harmful to the muscles and nervous system, but also morally debilitating for those reckless teenagers who practice it. Therefore, the guide suggests that in this era of indivialism, people must realize that only they can achieve self salvation
Professor Stanley hall, President of Clark University (the first university in the United States to invite Freud to give a lecture), who can be regarded as the originator of adolescent psychological research, once said that "masturbation is the most heinous behavior" and "the most tragic aspect of human weakness, and the culprit of a series of neurological and cardiovascular diseases". This remark is still popular with many people. In his view, masturbation is the root of all major crimes, whether social or personal
the fundamental problem of masturbation lies in its self satisfaction. It makes it possible for people to fantasize about unrestrained sexual enjoyment without anyone or anything, because all the necessary things - desire and satisfaction - exist in the indivial itself“ The masturbator always has the necessary means, tools and motives to carry out this crime. "“ There is no reason, as long as you have this idea, you can arbitrarily allow your body to be manipulated by pornographic desire; It's fantasy, not nature, that dominates them. "The consistent practice of preventing a certain evil from happening - avoiding temptation
masturbation, which is completely caused by internal behavior, has almost no effect at all. On the contrary, masturbation is generally considered rampant because of its incomparable attractiveness and no way to restrict it. Moreover, since masturbation is always carried out by indivials in private, for some people, it seems to be the only vice that can escape social condemnation without punishment
this "dirty and disgraceful trick" not only makes the body weaker, but also makes the brain more and more ll. This kind of behavior of self satisfaction pollutes people's brain very early. "Masturbation, an indivial vice, has become a public hazard for all mankind."
for masturbation, we need to constantly criticize, condemn and warn. We should not only rely on external restraint force, which has no effect on this kind of evil behavior, but also self-restraint through our own sense of shame and guilt. This sense of shame and guilt is cultivated by constant ecation. In essence, masturbation, once acquired, is addictive. Therefore, this kind of behavior needs constant criticism and condemnation. Masturbation is often compared to smoking. In order to satisfy the endless self desire, people who inlge in these two kinds of bad habits will fall deeper and deeper
because there is no other vice that is more alluring and easier to carry out than masturbation. It can be implemented quietly without any external force, and the chance of masturbation always exists. It is not monitored by the public at all, because it is quite easy to be unknown. What's more, in the real world, the methods that are usually used to prevent evils have no effect on prostitution, and the laws of hindrance and inertia do not apply
since masturbation is often carried out alone and in private, it is entirely possible for this kind of evil behavior to imprison people's soul. It is too late for masturbators to realize the harmfulness of this evil habit. They try their best to get rid of this bad habit, but they always fall into it again. Masturbation, like drugs, makes masturbators addicted and unable to extricate themselves. Like heroin and other lethal drugs, masturbation will make countless innocent people become addicts step by step
masturbation is completely caused by people's inner desire, only shame and guilt
BTB (business to business), also known as B2B, refers to a kind of Internet market, which is the marketing relationship between enterprises. It combines the intranet with customers through B2B website, and provides better service for customers through the rapid response of the network, so as to promote the business development of enterprises. In recent years, B2B develops rapidly and tends to be mature
the main reason is that the objects are different< br />
network virtual currency generally includes game currency and digital currency
digital currency generally refers to bitcoin, Leyte coin, dogcoin and project crowdfunding token of European crowdfunding platform.
