Import digital currency

1.

digital currency is likely to change the current world monetary pattern and become the mainstream of currency in the future

the essence of money is a tool to measure the price, from the most primitive shells, later copper coins, gold and silver, and now paper money. They do not have the value attribute, but when people give it the value measurement standard, it acts as a tool to measure the value. They are credit currencies. It is because of the strong credit endorsement of the state that the public recognizes them as the medium of goods exchange

this also means that you can go out later without anything. As long as you have money in your digital currency, you can buy anything you need. Later, with the development of the Internet of things, everything will be connected, and your clothes, shoes and bags may become the carrier of digital currency

at present, digital currency is still in the exploratory stage, and its use is still to download app, and then use it. Recently, Shenzhen has issued several rounds of red packets, each user can get 200 yuan red packets, which can be used in designated shopping malls, supermarkets, restaurants and many other places, and some enterprises use it to pay wages, and large-scale pilot will be implemented in the future

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2. With the rapid rise of bitcoin, digital currency has entered an era of barbaric growth. At present, there are nearly 1000 kinds of digital currency or procts under the banner of digital currency listed on various trading platforms, and it is said that there are nearly 5000 kinds of procts waiting for the exchange. Hehe, this is the best time and the worst time. It should be said that among so many procts, there must be some outstanding ones who will eventually stand out, become technology leaders and instry benchmarks, and start another wave of miracle of making wealth. However, most digital currency procts will eventually be eliminated, or even become laughingstock and scam. In fact, it seems that many of them are scams now

in the mixed market, how to practice a pair of eyes to identify the authenticity, this paper provides several perspectives for your reference

First, technical basis. The value of bitcoin does not lie in its price, but in its technical basis - blockchain, also known as distributed ledger technology. It is an Internet database technology, characterized by decentralization, openness and transparency, so that everyone can participate in database records. This paper is not a popular science article, and does not do too much entanglement on the technical explanation. But you need to understand the basic characteristics of blockchain. The first is decentralized and intermediary trust. There is no backstage, no manipulation, and no need for a third party. The second feature is its stability, reliability, persistence and security. Because it is a distributed network architecture, no central node can be attacked, so it has stronger stability, reliability and persistence in the overall technical layout. At the same time, the consensus mechanism does not need the entry of a third party, but through a technology, a previously scheled technology to achieve the completion of the whole transaction. The third is the openness, transparency and non tamperability of the transaction. So when we look at digital currency, we must look at its technical basis. Only when the technical basis is in line with the actual digital currency can it have investment value

Second, trading platform. Investment in digital currency is inseparable from the trading platform, so it is very important to choose a reliable trading platform. A good trading platform should have the following characteristics. First, it is fair and impartial. All traders are treated equally without any discrimination, regardless of the size of the transaction volume or the geographical location. In particular, as an exchange, it can not issue money. How can it be fair and just to be a referee and an athlete? Second, freedom of advance and retreat, without artificial barriers and obstacles. Free registration, free use (not transaction costs). There are no restrictions on the freedom of deposit and withdrawal. Your own money is up to you. What needs to be pointed out here is that today's exchanges are all unregulated. They are also in a period of barbaric growth. Like digital currency, there will surely be outstanding people who will become the benchmark after the waves, and there will also be runners who will leave behind a lot of chicken feathers

Third, monetary characteristics. It refers to the characteristics of a digital currency. A look at scarcity, that is, its circulation. Bitcoin is 21 million. There are many behind it. There are tens of billions and hundreds of billions of bitcoin. If the amount of bitcoin is too large, it is difficult to pry. Second, the theme is the entry point and application basis of a digital currency, from which we can see the social responsibility and existence of the digital currency. Nowadays, there are various themes, such as tips, watching Japanese AV, keeping virtual pets, naming planets, symbiotic economy, and so on. Different people have different opinions, but human society still has common basic values. As an investment, we should firmly grasp this point

Team background. The spirit of enterprise is the embodiment of human spirit. What a liar opens can only be a liar company. Therefore, in the face of a digital currency, it is also important to understand the background of its creative team members. What is the common goal of the team? What are the common interests? Which stage of development is currently in? This seems to be a bit difficult, but because we have the Internet, we can still do it, just don't believe what he said

digital currency investment, in the final analysis, is a technological activity, the key lies in learning and communication. Finally, the value of bitcoin lies in that it has led an era and successfully carried out a popular science ecation for the people on earth. In the future, the dominant digital currency will be the kind of digital currency that covers the world and is endorsed by the common value (such as gold), at least at a certain stage

the Internet will not die out, and digital currency will eventually move towards standardization and orthodoxy. As an investor, are you ready

3. The issue of bitcoin is determined by the block height, that is, the distance from the No. 0 block of Genesis. Now when the number is reached, the total amount of bitcoin should be limited. After this village, there will be no store. If the miners dig a block but don't receive the reward of the block, the bitcoin will be destroyed forever

coinbase transaction is a special transaction that generates bitcoin "out of thin air". Only miners can write this kind of transaction, and the number of generated bitcoin is limited by rules (new currency reced by half for every 210000 blocks + transaction fee for this block)

however, the rules do not stipulate that the miner must take away all the rewards that can be taken, and can choose not to take them

therefore, a mine pool connected with the RSK side chain has made a bug before, forgetting to take away the reward and occupying a pit in a block for nothing, which is equivalent to destroying the corresponding amount of bitcoin, making the total amount of bitcoin decrease a little bit permanently

in addition, to spend a bitcoin, you only need to specify the transaction ID and output serial number

as like as two peas in multiple blocks repeatedly write identical coinbase transactions, the transaction ID is also repeated.

therefore, this kind of situation also occupies the pit of a block in vain, and permanently destroys the corresponding amount of bitcoin

it seems to me that this is still a security vulnerability, so the new version of bitcoin software later banned the writing of repeated coinbase transactions. But until now, there has been no ban on miners not getting their e rewards

generally speaking, a coin is controlled by a private key. If a coin is transferred to an address where no one knows the private key, it will be destroyed

if the owner does a good job in security, and the private key is not disclosed and cannot be guessed, but he accidentally loses the private key, it is equivalent to destroying all the coins he owns

there are only some special circumstances that require intentional destruction of coins

one is irreversibly converted into another kind of currency, such as the contract currency XCP attached to bitcoin and wormhole cash WHC attached to BCH

the second is to save certificates and data on the chain, such as the time stamp: panbiao.com/2013/08 /

and the crowd funding of the original Ethereum founding team: zhuanlan.hu.com/p/29

the private key is essentially a big number. Whoever knows this number can control the currency on the corresponding address. So the private key must be generated with reliable random number, otherwise it may be guessed and stolen

compared with the token, the address is the hash of the public key. There is no way to judge whether an address has a corresponding public key and private key (even if the public key is known, the corresponding private key cannot be known). Therefore, even if it is explicitly the address of "burned" token, the system does not prohibit the transfer in

strictly speaking, what locks the currency is a small program (script). This program takes the input as the public key and digital signature. First, check whether the public key hash is consistent, and then check whether the digital signature is valid. If it is valid, it will be verified and transfer is allowed; Otherwise, it will be judged that the transaction is illegal and refuse to package into the chain

it is the whole node software that explains and executes this program. It can be said that the software code of the whole node specifically defines a coin

however, the current situation is very embarrassing. Most miners do not run the whole node, only a few mines are running. The vast majority of users do not run the whole node, even if they run the whole node, they can only perform verification, no computing power, no block.

4. If you want to make profits, people will directly ask for your principal. There are more than n such platforms. Once you go in, no one will listen to you.

5. Big trading platforms such as hotcoin pro, Xigu and OK are more reliable, because they usually take the initiative to eliminate bad money into the market in order to maintain public praise. For example, fire coin Pro only has 100 digital currencies on line. Although some potential God coins may be eliminated, generally speaking, they still have a bottom in mind.

6. If you want to invest in digital currency
the advice to you
is to carefully consider
because digital currency is not stable at present
most of them rely on speculation to follow suit
there will be no news soon
so the investment risk is very big
it's better not to participate in it

7. It is wrong to say that China's digital currency comes from the people, because it comes from the present. Science.

9. The application scope of online token is generally limited to the consumer items of the issuing company, such as q-coin, which can only purchase value-added services (such as red diamond and yellow diamond) and online game consumption (such as flying car and dazzling dance) under Tencent
at present, virtual currency only has the value of speculation and collection, and there are not many real instries that accept virtual currency payment