Understanding of blockchain

1. Because at this stage, all the right issues in China are in an exploratory stage, and the system is not yet complete, so the blockchain can not solve the right problem.

2. The definition of Chongqing jinwowo analysis blockchain technology is as follows:
1. Blockchain is a distributed database (system) placed in a non secure environment
2. The blockchain uses cryptography to ensure that the existing data cannot be tampered with
3, the blockchain uses consensus algorithm to reach consensus on new data
the system with the above three properties is blockchain.

3. The essence of blockchain is a distributed ledger. For example, the bank system is also the account book, which has a complete set of information system to store various transaction information such as access, loan, exchange and so on. Blockchain has several keywords:
1. Distributed: ledger is not only stored in one place, but in many places
2. General ledger: you can determine that you are not necessarily a machine stored general ledger through the network, but you can at least obtain the general ledger from the network
3. Decentralization: "distributed" is not a general distribution, but a decentralized distribution. No one can control and tamper with it, its accounting rules are based on some designed mathematical method to account for all rights. How to test, how to use, are in accordance with an open method to complete, so in essence is an account book
coin Ying China is the first to introce blockchain into the crowdfunding instry, making crowdfunding more open, transparent and simple.

4. Let me tell you this. Those who say no pumping are hooligans! There's no pie in the sky. Development of a mining software needs a lot of time, energy, financial and material resources, and then said free to you, and do not have any benefits, do you believe it? A lot of software with the slogan of free pumping, in fact, pumping than no one is low! For example, Changsha miners! Some tests do not require pumping, but the power of stealing calculation is higher than that of pumping! So, it is said that the mining software without pumping, give up decisively!

5. EM is a relative measure

EM is a measure based on typesetting conversion, which defines 1em as the height of capital letters of reference font. For consistency with other metrics, CSS defines 1em as the height of the character box. The size in EM is a decimal or multiple of the reference font size. Therefore, 2em and 200% are the same, and. 75em and 75% represent the same size

you write 2em, which is 200%. Of course, you can't see the effect. If you use 0.2em, you can see the effect.

6. The simple one is that e-money is not the traditional cash, but the transaction of data and data. No matter how you transfer or how you trade, the cash is in the bank, and the bank's money is invested, which is very helpful to the economic development and the dominant direction of money in the future. However, there are also shortcomings. E-money is very easy for the financial sector to cause economic bubbles. The same financial effect is doubling the financial effect. That is to say, funds have a circulation function in numbers, but in terms of banks, the cash they are holding has an additional effect on the circulation of electronic money in the society. It will inevitably rece the circulation of cash and RMB in the market, which will easily lead to inflation and price rise.

7.

At present, with the rapid development of science and technology, the situation is surging. If you and I are a little lazy, we may be out. No, the new blockchain is coming. Since the beginning of this year, blockchain has become one of the hottest knowledge points in the field of science and technology, and has become increasingly prominent in the fields of digital finance, Internet Governance and big data computing

blockchain technology also has broad application prospects in the military field, which is very likely to quietly subvert the future war

this is not Xiaole's boasting“ There is nothing more important about the three armed forces than secrecy. " We should know that in the future information battlefield, confidentiality is the key to win or lose the war. Because the blockchain system has many characteristics such as information independence, confidentiality and integrity, it can realize the perfect combination of data storage and data encryption. After being attacked, it also has strong recovery ability, and can protect highly sensitive data, which is of great help to win the war

according to the information collected by Xiaole, some countries are planning to build blockchain information platform and begin to study the application potential of blockchain in several scenarios such as military satellites and nuclear weapons; An international organization is currently evaluating the performance of blockchain technology in military logistics, Internet of things and other fields

if bitcoin and other digital currencies are blockchain 1.0 applications, blockchain 2.0 is the "smart contract" that provides a strong guarantee for network transaction data security. There will be 3.0 in the future, from Dao (blockchain self consistent organization), DAC (blockchain self consistent company) to blockchain society

"cultivate new kinetic energy with informatization, promote new development with new kinetic energy, and create new brilliance with new development." I believe that blockchain, the "new kinetic energy" of science and technology, will bring us more surprises: "one machine in hand, I have it in the world", "trade autonomy", more extensive sharing, and the optimal life mode... Blockchain technology will create a more honest, convenient, and efficient Era of big data

content source: Liberation Army Daily

8. No way. It's the same as the ticket