Blockchain will replace Gaokao

1. Is this the college entrance examination?

2. The relationship between blockchain and big data is not very big. The main purpose of big data is to manage massive data, and the core of blockchain is to achieve high security and high reliability of data without centralized intermediary accounting. Therefore, blockchain and big data do not conflict with or replace each other. They are completely different solutions for data in different scenarios. Black horse programmers are the first to offer blockchain technology courses. It's quite shocking to see the lecturer lineup. Now I'm more concerned about this high-tech. if you are interested, you can go to the free audition. Anyway, there is no charge.

3. The subversive characteristics of blockchain lie in the following four aspects: first, transparency. The data record of the blockchain system is transparent to the nodes of the whole network, and the update operation of the data record is also transparent to the nodes of the whole network, which is the basis of the trustworthiness of the blockchain system. Because the blockchain system uses open source programs, open rules and high participation, the data records and operation rules of the blockchain can be reviewed and traced by the nodes of the whole network, with high transparency< Second, openness. The blockchain system is open. In addition to the fact that the private information of the parties directly related to the data is always encrypted, the data of the blockchain is open to all (except the blockchain system with special permission requirements). Anyone or participating nodes can query blockchain data records or develop related applications through the open interface, so the information of the whole system is highly transparent< Third, information can not be tampered with. Once the information of the blockchain system is verified and added to the blockchain, it will be permanently stored and cannot be changed (except for private blockchain systems with special change requirements). 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, so the data stability and reliability of the blockchain are extremely high
Fourth, decentralization. Decentralization is the most basic feature of the blockchain, which means that the blockchain no longer depends on the central processing node and realizes the distributed recording, storage and updating of data. In the traditional centralized network, attacking a central node can destroy the whole system, while in a decentralized blockchain network, attacking a single node cannot control or destroy the whole network. More than 5% of the nodes in the master network are just the beginning of gaining control. 2019 is the first year for the commercial application of blockchain technology, and the stimulation of favorable policies will make the development of blockchain technology more stable
with the application of blockchain technology graally penetrating into many fields such as digital finance and Internet, we have a clearer understanding of the value of blockchain
blockchain has formed a situation of global competition, and all countries are seizing the development opportunities, let alone China; Therefore, there is no doubt that blockchain has become a national strategy.

4. Because the 21st century is an era of science and technology leading the trend, the virtual world has begun to reconstruct the whole real world, and the information internet is bound to transfer to the value Internet. Therefore, the blockchain has emerged as the times require, followed by the operation of the water quantum community. The team of water quantum community is composed of elite experts in blockchain and financial fields in the United States, Taiwan, Malaysia and China. Including a number of senior technical experts: former chief architect of Microsoft Technology Center, former senior manager of Microsoft Greater China Technical Service Department, former senior consultant of Microsoft financial services, global blockchain technical expert team, etc., we can say that we have absolute say in blockchain.

5. There is a future, but some projects are hyped up. Two days ago, Zhu Jiawei, the COO of fire coin group, gave a speech at Lakeside University. You can refer to it“ Blockchain is an ongoing proctivity revolution. We should seize the opportunity of the times. But we should also have a clear and scientific understanding of the principle and role of blockchain. If we overestimate the role and prospects of the block chain, excessive speculation and blindly follow suit will inevitably lead to bubbles. "

6. This is theoretical, that's why people ask questions about mining with galaxy, but it's hard to be true! The difficulty of mining will graally increase, and it will be found that the input and output are not very different.

7. Blockchain is a good thing, but it will change some instry technologies in a large area
decentralization
will hurt the interests of others
will make others unemployed
the data that can be deleted can not be deleted
and most enterprises can not use blockchain

8. Blockchain is the underlying technology of bitcoin. You can think of blockchain as a distributed database for storing bitcoin transactions. In the whole network, each node will have a complete blockchain

blockchain technology has realized the key characteristics of tamper proof, decentralization, anonymity, security and reliability. Now more and more instries choose to use blockchain technology. For example, NASDAQ has adopted blockchain technology to realize LINQ, a private equity trading platform. It is more secure, and the transactions stored in the blockchain can not be tampered with, that is to say, once written, it is impossible to be modified. In the future, the application of blockchain will be very wide, and all aspects can be applied to blockchain technology. For example, in the future, schools can store the electronic version of Graation Certificate in the blockchain, which will not be tampered with. Employers can check the authenticity of students' graation certificate by querying the information in the blockchain.