Ethereum develops its own virtual currency

According to Beijing time on October 24, Jeff garzik is one of the few key developers of bitcoin's underlying software, so he knows the shortcomings of bitcoin's blockchain at his fingertips. So he decided to create a better digital currency

he named the currency metronome and said it would be the first virtual currency to be used on different blockchains

this mobility means that if a blockchain dies e to developers' infighting or no one is using it, metronome users can transfer their money to other places. Kajik said that would help metronome maintain its valuation and ensure its long-term survival. In order to create metronome, kajik founded the start-up company bloq. Metronome will be officially launched at the money 20 / 20 conference in Las Vegas on Tuesday, he said

metronome will be generated and supported by automatic distributed software, which is neither controlled nor changed by anyone. The software will start auctioning metronome currency in December and will retain and use the proceeds from the auction to drive the price of the currency. The rest of the project will be open source, so anyone can develop applications for metronome

bloq will provide developer tools for enterprise users. Of the 10 million metronome coins to be auctioned in December, bloq and other organizations that help create and promote metronome will keep 2 million of them. Every 24 hours, 2880 new metronome coins are born

metronome avoids problems that users often encounter when they want to transfer from one blockchain to another. That is, users must sell one cryptocurrency they own and then buy another. This creates transaction costs and may lose the potential appreciation of the currency sold. With metronome, none of this is a problem

when users want to transfer metronome to another blockchain, they will get a digital receipt. They can then send the receipt to another blockchain and add metronome to that blockchain

The monetary gold and silver Bureau of the people's Bank of China issued the "risk warning on issuing or promoting digital currency in the name of the people's Bank of China". In the risk warning, the central bank stressed: our bank has not issued legal digital currency, nor authorized any institutions and enterprises to issue legal digital currency, and there is no promotion team. At present, the so-called "digital currency" in the market is not legal digital currency. The central bank stressed that the so-called "digital currency" launched by some institutions and enterprises and the so-called promotion of the central bank's issuance of digital currency may involve pyramid selling and fraud

if you are interested in more anti fraud information, you can pay attention to my "Laohan anti pyramid scheme", which will continue to update the inside routines and reveal the secrets of pyramid scheme. I hope you can be more vigilant and stay away from the pyramid scheme

In my opinion, we can start with mainstream value currencies such as BTC now. Judging from the trend of BTC in the past year, it is basically at the bottom now. Even if it is possible to fall further, it will not fall too much. Ten years of history shows that BTC is certainly valuable, and BTC will definitely appreciate in the future. After all, it is the gold of the currency circle, which is rare and has the greatest consensus. The above is just a personal statement and does not constitute an investment proposal. Investment should be cautious! Finally, I declare that if you lose money by investing in virtual currency, I will not bear any legal responsibility

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

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

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

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: