Digital currency needs technology

1. Step 1: build a digital token system
this is very simple. The code of bitcoin is public, and it is a kind of counterfeit currency after a simple change; ethereum's technology is open source. You can find a program to issue a coin on Ethereum's public chain. Now most of the counterfeit coins are on the public chain of Ethereum, and the distribution of tokens is also directly in Ethereum's wallet, which is very convenient
Step 2: find someone to endorse
if the project can be implemented, it is possible to find a real influential tycoon, and by the way, it can also get an angel round to do marketing. If the project is air money, it may be a grassroots tycoon. In any case, now that the coin circle is just emerging, many "tycoons" are actually grassroots. If you can't, you can send candy directly by virus marketing
Step 3: prepare a white paper
this has to be written on the top. For high-quality coin, vision, code, planning, team and so on need to be well written, which takes a lot of time. But for air coin, it's OK to find a professional agent directly, and it can be written in one day
Step 4: promote marketing
find all kinds of coin circle media to advertise, or get a virus activity to invite candy delivery, so as to brush up the popularity
Step 5: love Western Europe
with a certain degree of popularity, you will begin to love Western Europe directly. Good projects are very simple, and they are often looted in a small scale. It doesn't matter if the air currency can't attract people. It's easy to find the agent investment channel to help you package the project
Step 6: contact the exchange
generally, they try their best to go to a well-known exchange. If there is no angel round, you can only take the money from aisio. It's not good. It's OK to go to an easy exchange
Step 7: public offering
once you are on the stock exchange, you will have enough confidence to speak. At this time, we can continue another wave of public offering. Anyway, what we give out are tokens, which can also attract more attention from the market
Step 8: go online
once the funds are sufficient and the quality of the project is good, there will be more mainstream exchanges. Once the mainstream exchange is finished, this is a reliable project
at present, ICO in our country has been banned, so we can only conct private placement.

2. digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy. Digital currency is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form. Digital currency is a kind of venture capital. Some people can make profits in this market, while others can make losses in this market. To make money, digital currency can be invested by mining and trading on the platform. Digital currency has price fluctuation and is investable in theory

warm tips: the above explanations are for reference only, without any suggestions. There are risks in entering the market, so investment should be cautious. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
response time: December 2, 2020. Please refer to the official website of Ping An Bank for the latest business changes
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3.

Generally speaking, there are not many technologies available for blockchain development. The mainstream development languages are generally divided into the following four types. Different development languages require different timely configuration. You can also visit the blockchain development language selection.

first, go language is selected for development. The high concurrency of go language is very suitable for blockchain development

Secondly, C + + language and C + + technology are mature and fast

Thirdly, Java language

Four is, node, JS

4.

From 2015 to 2017, the price of bitcoin increased from more than $100 to $17000, a 100 fold increase. Today, the market value of various numerical currencies is more than 700 billion US dollars. The myth of their benefits is not nonsense

but there are many things behind the chaotic digital currency. You may ask why air currency can be listed on the stock exchange? It's very simple. The exchange also has to charge a part of the fee. Raise the price and then sell it to make money. So the question is, how to identify air currency

first of all, you need to look at the projects behind the digital currency and see what their team background is. Generally speaking, teams without experience in the instry tend to earn money, but how much experience do they have? It is better to be able to participate in the construction of Ethereum and bitstock communities. Such a team is often more reliable. This requires investors to have a certain screening ability to identify good or bad

secondly, there is no way to implement many projects. How can we identify them? In addition to the ability of the team, we also need to see the feasibility, which requires us to systematically learn the knowledge of bitcoin and blockchain. For example, Zhu Jiawei, the COO of fire coin network, learned the blockchain from 0 to 1, and clearly described the development process of bitcoin and blockchain in the form of audio and text. Besides, don Tapscott and Alex Tapscott's "blockchain revolution" are worthy of careful taste

moreover, the bubble of digital money is very large nowadays. In the bubble, it is not difficult to make money, but the key is not to be greedy. Long term holding is not good, but it can be operated in a short term. You can make money if you want. However, the key is that people are all profit-making and greed is their nature. Therefore, many people do not accept what they see. They originally made money, but later they lost everything. The gain is not worth the loss. Therefore, it is necessary to control greed

5. Digital currency platform development needs professionals to be responsible for, but now digital currency technology has matured, the difficulty of development has become very simple, has become a standardized technology. Today's digital currency technology is not the highlight, but the application scenario of this kind of digital currency
the birth and popularity of bitcoin all over the world depends on the concept, which is in the foreword of the times. However, bitcoin has been preconceived and cannot be replaced by other digital currencies. Although some counterfeit currencies were popular for a while later, they slowly went down in the end, only bitcoin strengthened. Puyin is another shortcut, as a standard system of digital currency appears, behind the endorsement of related tea assets, its value is recognized by the society.

6. Digital currency refers to the currency based on digital technology. QQ currency is also called digital currency. Virtual currency refers to cryptocurrency, which is built on the blockchain technology. The security depends on you. You must be optimistic about the project application. GJ is not allowed to do it because ordinary people do not have the ability to separate projects, so it is across the board.

7. In fact, the technical systems corresponding to various digital currencies are quite different
moreover, the development of digital currency is still immature.

8.

The spacing width of dowel bars is 10 mm

one end of the dowel bar is fixed in one side plate, and the other end can slide in the adjacent side plate. Its function is to transfer traffic load between two pavement slabs and prevent platform staggering, increase the stress transfer between adjacent concrete blocks, so as to prevent uneven settlement of concrete pavement caused by large local stress of concrete pavement, and transfer stress to make adjacent concrete blocks bear stress together

In the calculation, it is assumed that other parameters remain unchanged and the size of the foundation is graally enlarged, and the stress of the slab is graally stable with the increase of the size of the foundation until the stress converges

through a lot of trial calculation, the calculation size of the foundation is finally determined as 5.0 M × 7. 0 m × 7. 0 m 75 m in width; The length of slab is generally 4.0 m, 5.0 M and 6.0 M. The length of dowel bar is 450 mm, which is set along the joint center line of concrete slab, and the joint width is 10 mm

< H2 > extended data:

contact stress between dowel bar and concrete

the diameter of dowel bar is 32 mm and the length of embedded concrete is 22 cm. The distribution of various contact stresses at the interface between dowel bar and concrete along the length direction of dowel bar is shown in Figure 6. In Figure 6, the horizontal axis is the distance from the center of the seam gap (or the midpoint of the dowel bar). For example, "0" represents the position of the seam, "5" represents the position of the dowel bar 5 cm in the loaded plate, and "5" represents the position of the dowel bar 5 cm in the unloaded plate

the stress distribution along the length direction of the dowel bar is as follows: the maximum contact stress between the dowel bar and concrete is at the joint. With the increase of the distance from the concrete joint, the stress value decreases rapidly, and it is close to 0 at both ends of the dowel bar. In the range of about 8 cm from the joint, all kinds of contact stress values are relatively large. The warping or arching of concrete slab under the action of temperature gradient will lead to the bending of dowel bar

9. Fictitious, pyramid scheme fraud, do not believe that the virtual currency is illegal

10.

Why develop digital currency? From the perspective of the central bank, there are six advantages:

first, to improve the convenience and transparency of economic transactions; second, to rece the high cost of the issuance and circulation of traditional paper money; third, to better support economic and social development; fourth, to help the comprehensive realization of Inclusive Finance; fifth, to rece money laundering, to promote the development of the economy and society Sixth, improve the central bank's control over money supply and circulation

steps of digital currency development:

the first step,

first, we need to download the source code of a blockchain system from git, such as choosing the backbone code of bitcoin to download the relevant source code

At the same time, prepare the corresponding compiling environment (c + + is recommended in Linux) and install the corresponding development environment and tools

the second step and

code all need to be compiled, so you need to prepare the compilation environment and tools, download the environment compilation tools, configure

system environment variables, QT environment and other files, and compile commands are described in detail in the files in ITC source code

however, the construction of the system and development environment, program compilation and other processes are cumbersome, so it is not recommended for ordinary users to make their own. For developers, it may take 2-3 days to install and configure for the first time

the third step,

take bitcoin development as an example, it is the development environment of Q. after downloading the source code and configuring the environment, open the source code of the bitcoin core in qtcreator, configure relevant files and compilers, and start to try to compile the client of the bitcoin core

Step 4,

transform into your own digital currency, open each source file, find the corresponding local adjustment parameters, such as adjusting

the number of coins in each block, the total output, the adjustment difficulty, and so on. Then the most critical point is to change the name to your own currency

name as you want, and don't forget to replace the related icons in the resource folder. If all goes well, after re compiling, your new coin will be invented successfully

for the development of this digital currency, the technology is relatively professional, so it is better to have a professional team to assist

framework for digital currency development:

1. Build Ethereum private chain test environment and public chain node environment configuration

2. Ethereum transaction and confirmation principle

3. Ethereum JSON RPC interface

4. Ethereum transfer and withdrawal principle

5. The server connects Ethereum public chain interface, and its own server stores business data, Public chain storage transaction anonymous data

6, private key security processing

the following is the development code example:

for example, the common digital currency wallets in the market are:

app class: kcash Imtokenweb: myethereumwallet Google browser plug-in: metamask

one of the most commonly used is imtoken

blockchain transaction technology concept:

let's take a look at how blockchain transaction is handled with bitcoin as an example. In order to send a certain amount of bitcoin to another wallet, you need the following information: the address to send the funds to your wallet, the amount of cryptocurrency you want to send

the ID of the recipient's wallet

each transaction is signed with a unique confidential private key. Once the payment is signed by the sender, it becomes publicly available. The transaction still needs to be confirmed so that the payee can get the money. In order to confirm the transaction, it is necessary to generate a new chain block

these blocks are generated by complex mathematical calculation to find the unique key. It takes 10 minutes to create a new block, and the person who finds the key gets a certain amount of coins as a reward. Once a new block of the chain is created, it is not possible to remove it from the database or change the information in some way. Therefore, blockchain transaction is final and irreversible

three core advantages of digital currency:

first, digital currency is a fair currency

digital currency has no specific issuing institution, is not issued by a country, only depends on a specific algorithm, which means that digital currency can not be manipulated by manipulating the number of issues, so digital currency is a free, non-state currency

we can see that there are many countries that directly recognize the virtual currency, so if there is a demand, it needs a trading platform

many investors who want to build a virtual currency trading platform now, why can't they go to these areas to build a trading platform? Building a virtual currency trading platform is a good business opportunity, isn't it

Second, the security factor of digital currency is higher.

although the emergence of paper money facilitates the transactions in our daily life, there are risks of being stolen and received. Although e-money can avoid these risks, there will be new problems such as theft and swiping

digital currency can avoid the above problems. And broadcast every transaction record on the network. Yes, all nodes save all the currency circulation information, so that any node can easily find the currency circulation before the transaction

Thirdly, the transaction of digital currency can realize anonymous transaction. Although you can query the flow information of each account according to the local complete transaction records

but we can't know who the owner of this account is, and no one has the ability to manipulate the digital currency on other people's accounts, which protects the privacy of users

if you also hold trading digital currency, foreign exchange gold, crude oil, contract Futures: