Blockchain achievement indicators

1. Moving average, Ma for short, originally means moving average. Because we make it linear, it is generally called moving average, Ma for short. It divides the sum of the closing prices of a period by the period. For example, the daily Ma5 refers to the sum of the closing prices in five days and then divided by 5. Moving average was proposed by Joseph E. Granville, a famous American investment expert, in the mid-20th century. Moving average theory is one of the most widely used technical indicators today. It helps traders to confirm the existing trend, judge the trend that will appear, and find the trend that is about to reverse<

MACD is called the moving average of similarities and differences, which is developed from the double index moving average. The fast line dif is obtained by subtracting the slow index moving average (ema26) from the fast index moving average (ema12), and then 2 × Fast line dif-dif's 9-day weighted moving average (DEA) obtained MACD column. The significance of MACD is basically the same as that of double moving average, that is, the dispersion and aggregation of fast and slow moving average represent the current long short state and the possible development trend of stock price, but it is more convenient to read. When MACD turns from negative to positive, it's a buy signal. When MACD turns from positive to negative, it's a sell signal. When MACD changes from a large angle, it means that the gap between the fast moving average and the slow moving average widens very quickly, which represents the change of a market trend.

2. It should be. After all, China is so big. Other domestic blockchain + financial applications need to be official and large-scale. Now Bank of Changsha has a cooperation with a public platform of SMIC blockchain, which seems to be a blockchain loan for small enterprises.

3.

Blockchain is an important concept of bitcoin. It is essentially a disintermediated database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography

broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code

extended data:

the evolution mode of blockchain is as follows:

& 9642; Blockchain 1.0 - digital currency

▪ Blockchain 2.0 - digital assets and smart contracts

▪ Blockchain 3.0 - Implementation of distributed applications in various instries

blockchain features:

1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system

2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work

The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of the blockchain are extremely high

5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit

4.

From the perspective of technology and architecture, I will tell you my understanding of blockchain in common language

what is blockchain? In a word, blockchain is a storage system. To be more specific, blockchain is a distributed storage system without an administrator and each node has all the data

What are the common storage systems like

first, how to ensure high availability

the common storage system usually uses "rendancy" to solve the problem of high availability. As shown in the figure above, if the data can be copied into several copies and rendant to multiple places, high availability can be guaranteed. The data in one place is hung, and there is data in other places. For example, the master-slave cluster of MySQL is the same principle, and the raid of disk is also the same principle

two points need to be emphasized in this place are: data rendancy often leads to consistency problems

1. For example, in the master-slave cluster of MySQL, there is actually a delay in reading and writing, which means there is a inconsistency in reading and writing in a short period of time. This is a side effect of data rendancy

The second point is that data rendancy often reces the efficiency of writing, because data synchronization also consumes resources. If you add two slave libraries, the write efficiency will be affected. The common storage system is to use rendancy to ensure the high availability of data

so the second question, ordinary storage system, can write more

the answer is yes, for example, take this graph as an example:

in fact, MySQL can do a master-slave synchronization of al masters, master-slave synchronization of al masters, two nodes can be written at the same time. If you want to do a multi room multi live data center, in fact, multi room multi live data synchronization. What we should emphasize here is that multi-point writing often leads to the consistency problem of writing conflicts. Take MySQL as an example, suppose that the attribute of a table is self incrementing ID, then the data in the database is 1234 now. If one of the nodes writes and inserts a piece of data, it may become 5, and then these 5 pieces of data are synchronized to another master node, Before synchronization, if another write node inserts a piece of data, a piece of data with self incrementing ID of 5 will be generated. Then, after the generation, synchronize to another node, and the synchronized data will conflict with the two local 5's after it arrives, which will lead to synchronization failure and write consistency conflict. This problem will occur in the case of multi-point writing

how to ensure consistency in multi-point writing

the reform "Swan class" gives you more technical work

5. The reason why blockchain is deceiving is that many funds and air coins are under the banner of blockchain to recruit people to "cut leeks" to cheat money. Therefore, if you want to make investment, you should be careful of this. If you just want to know, I will some information I found to you. The following content comes from the network and my personal opinions, so it is only for your reference< The br / > Bobbi block is actually a panoramic life service application of block chaining, which applies block chain's underlying technology, artificial intelligence technology and panoramic VR space technology to build block chain ecosystem. It can be used for personal safety wallet tools (aggregating UnionPay, Alipay, WeChat payment, PayPal, and bank card payment). You can also set conditions for the other party to receive
for enterprises or groups, they can make use of the Bobbi panoramic blockchain as an intelligent ERP management system, put the enterprise's information and services into the panoramic space, and display their blockchain encrypted procts in the panoramic block. They can also establish their own blockchain distribution system through the intelligent contract, so as to truly realize the integrated operation of proct promotion and drainage, user experience and authentic proct sales
let's talk about my personal opinion. In recent years, blockchain has a trend of combining with different popular technologies, such as AI + blockchain, AI + blockchain and so on. This blockchain is panoramic technology + blockchain, so it is also an innovation to comply with the trend. Anyway, it seems that the concept of panoramic + blockchain is their idea, You can see the proct application or landing project corresponding to their concept. If the concept and proct application do not match, it is a gimmick. If not, it is not a fraud blockchain. The rest depends on your own understanding and judgment
very attentive answer, if you think it is helpful, please take it, thank you!

6. Loudi City has developed a number of application platforms, including the basic network platform of government blockchain, the information sharing platform of real estate blockchain, the registration service platform of instrial and commercial tax blockchain, and the competitive storage platform of blockchain state-owned funds. Moreover, the 2021 Internet Yuelu summit will also be held in Loudi from 16 to 17 this month, which is undoubtedly the best affirmation for them.

7. It is very difficult for investors to understand the professional technical indicators, but they can start from understanding the team: a blockchain project does not have a core technology bull, so the future development of the project should be carefully considered. In addition, we need to see if the background of the characters is real. Don't just listen to the boast of the project person. As long as you search more on the Internet, you will basically understand his situation. Academic qualifications can be directly checked on the official website of the University. If the background is exaggerated or fake, think twice about the project. Finally, we can try the application of this project platform first. If a platform has not developed its own wallet. Or in the process of use often appear all kinds of problems. Then the technical team of the project should focus on the assessment again.