Difficulties of digital currency

1. Absrtact: blockchain technology is the underlying technology of bitcoin. Without any centralized organization operation and management, bitcoin has been running very stably for many years (perfectly for seven years), and there has been no problem (no missing account). Therefore, some people have noticed its underlying technology and abstracted bitcoin technology, which is called blockchain technology, Or distributed ledger technology
what is centralization

the so-called centralization means "ownership" or ownership by the company. For example, Tencent's q-coin, which is issued by Tencent, is a kind of centralized electronic currency, including the total amount and the issuing method, is supervised and controlled by Tencent. You can use it, trade and go shopping, but you always have to operate in the framework of Tencent, and the final right of interpretation belongs to Tencent

the issuing mode of bitcoin is preset by the program and encryption algorithm, and runs on multiple nodes all over the world. No one or organization can modify it (everyone has his own account book, so it is impossible for one person to control everyone's account book at the same time. If there is such a technology, why should it be so complicated, If you want to blackmail money into your account, you will be the richest man in the world. There is no one left, And it is not controlled by any single person or organization
take an example: for example, Lao Zhang borrows 100 yuan from Lao Li, but Lao Li is afraid that he will default, so he asks the village head to do notarization and write down the account. This is called centralization. But if you don't find the village head, you can use the loudspeaker to shout in the village: "I Lao Li lent Lao Zhang 100 yuan! Please put it in the account book. "We all put this account in our own account book. This is called decentralization
anyone who transfers money between them will release information through loudspeakers. After receiving the information, everyone will record the transaction in their own account book. With distributed ledgers, it doesn't matter if Lao Zhang or Lao Li's ledgers are lost, because Lao Zhao, Lao Ma, Lao Wang and other families have ledgers

the main advantages of blockchain are that it does not need intermediary participation, the whole process is open and transparent, and the cost is low, and the data security is high

at present, blockchain is in a stage where everyone talks about blockchain, but can't perceive its actual technical charm. Since 2017, it has graally come into our sight, and we have graally realized that bitcoin is more fierce than real estate speculation (the price of mining machinery has skyrocketed! The news is on the screen But I still don't know

so, in which fields can blockchain be applied, what kind of changes will it bring to our future life

the core key: everyone has an account book, everyone has an account book, and the information recorded in each person's account book is consistent and synchronous, and the information is completely transparent. If it is fake, it will be the public enemy of the whole people, which greatly increases the cost of data fraud

core key 2: decentralization, which does not need a central system to manage data, prevents some people from changing data and damages the interests of the majority of people

Application:

1. Account security and privacy protection: currency transfer, exchange, payment system. Blockchain can help prevent data manipulation and fraud, prevent distributed denial of service attacks (DDoS), and effectively protect users' network privacy. Key words: anti counterfeiting, anti-counterfeiting, loan payment

2. Copyright regulation and interest disputes: for example, when a song is downloaded, from the author to the procer and then to the singer, they can get payment in real time through the blockchain, without having to wait for a long time like the traditional way, or even get no reward e to right disputes. Instead of waiting for publishers to provide royalty checks, creators can freely control the process from publishing to payment through blockchain application. Key words: real time receipt, no property dispute

3. Internet of things + artificial intelligence: the intelligent devices in the Internet of things based on the blockchain will be used to monitor the real-time situation of urban infrastructure such as bridges, roads, power grids, etc. the blockchain can connect these intelligent devices together for unified management to help them monitor more efficiently. This will help people better understand how to build a smart city in the future. Key words: unified monitoring, intelligent city

4: proof of existence: in life, once you are asked to prove that you are you, that your mother is your mother, that you have never been married, that the house belongs to you, and so on, things seem very simple. Once it falls on you, it is a great trouble. The application of blockchain technology can perfectly solve the above embarrassment. At that time, all the information that belongs to you will be recorded accurately and can not be tampered with. No one has the right to change it. When the technology develops to a certain stage, birth certificate and marriage certificate may be recorded on the blockchain. Keywords: no keywords

in addition to the application scenarios mentioned above, blockchain technology can also be applied to e-commerce, data storage, logistics and other fields. As long as we grasp the characteristics of blockchain technology, it will become easy to understand.

2. At present, large enterprises are still facing some of the same international payment problems. The transaction speed is slow, the cost is high, once there is any error, it is difficult to trace the payment. In order to solve this problem, many enterprises will use digital currency to settle accounts, or use digital currency to pay for procts and exchange national currencies through digital currency. Using blockchain technology to make real-time payment for enterprise customers, these payments do not need expensive third-party verification, and the settlement can be completed in a few seconds. At present, few enterprises like Yingtang Zhongchuang apply blockchain technology to the development of digital currency system. Developers and engineers need to design systems that can adapt to changes.

3. Bithub is a virtual currency trading platform in South Korea and the world. It has a high degree of trust. On August 19, the daily trading volume exceeded 15 billion yuan, and by the end of November, the total trading volume reached 360 billion yuan. It attracts the eyes of the world's virtual currency investors with its growing daily trading volume. In addition to quantum chain, bitcoin also has eleven virtual currencies, including bitcoin, bitcoin gold, lightcoin, Monroe and zcash. At present, I mainly trade bitcoin, bitcoin cash and quantum chain here. The recent market of these virtual currencies in bithub is really good! The market price of bitcoin broke through 80000 RMB at the end of November. I really have this wave

4. Different currencies cannot exchange one currency for another through direct transfer on the trading platform. Transfer is the transfer of currency from one account to another, such as the transfer of legal currency account to currency trading account
the BTC in the currency trading account can be exchanged through BTC / BCH trading pairs in the trading interface, that is, BTC can be used to buy BCH.

5. In 2010, Chinese economist Guo Xia pointed out in his book decoding economy (published by Economic Science Press in August 2010) according to the theory of new money (XM), "the mainstream currency of human society in the future will have the characteristics of digital currency, electronic currency and global currency."“ The future world currency will be a consistent digital currency system in the world. "“ The mainstream currency in the future will be bitcoin, which is convenient for economic activities on the Internet. "“ New economics should take the research on new money as the focus of monetary economy research. " Bitcoin and virtual digital currency are popular all over the world. The fact that the Central Bank of China has set up the digital currency Research Institute confirms the above prediction of the new economic theory