Development cost of digital currency
the tamper proof blockchain technology can solve the data forgery of traditional centralized game services and the risk of game user data leakage at one time, which makes AOCO subvert the traditional rules of the game instry, directly connect the components of the whole game ecological chain with a decentralized structure, and realize asset docking, circulation and storage.
blockchain development needs to be determined according to the development methods and functions. Customized development is expensive, and it will be very expensive if there are many and complex functions, Therefore, this specific price can only be expressed in a specific scheme.
there are many kinds of blockchain digital wallet apps. For example, online applications can be divided into many kinds, including full node wallet, light wallet and centralized wallet. In addition, they can be divided into single chain wallet and Multi Chain Wallet, while offline applications can be divided into paper wallet and hardware Wallet
the development costs of different types of blockchain digital wallets are very different. For example, the development costs of single chain wallets and Multi Chain wallets are different because of the different system types used in the development. It can be known that the development of Multi Chain wallets is more difficult, because the quotation will be much higher than that of single chain wallets.
we can go to the mine for half an hour every day through shigongtou. Although it's only a short half hour, it's the fastest way for novice players to earn Yuanbao. Because the difficulty of each level is different, it's recommended that players of level 35 or so can go to the third floor of the mine, while those of level 35 or below can go to the second floor of the mine, As for the first floor, because the shipment is too rubbish, it is not recommended that you go to mine
after entering the mine, we will find a large number of zombies around you. The zombie level of the third level is level 40. As long as our combat power is not too low, we can solve them very easily. Then we need to find a safe place to speed up mining. Here we recommend novice players to choose the corner, where we are not easy to be found by other players, It's only 2 zombies that can be refreshed at most once around, which is very easy for us to solve.
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 toolsthe 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 recordsbut 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: