How does the blockchain education platform achieve value transfer

Lead: 　　 Our lives are inseparable from the Internet all the time. Our usual food, drink and fun can be achieved through the Internet. We chat online, order takeaways, watch online dramas, book train tickets... so to speak,...
Our lives are inseparable from the Internet all the time, and our usual food, drink and fun can be achieved through the Internet. We chat online, order takeaways, watch online dramas, book train tickets... It can be said that the emergence of the Internet has greatly improved The characteristics of people's life, real-time interaction, resource sharing, and beyond time and space, allow many people to experience shopping, chatting, food, entertainment and other convenient life without leaving home.

However, after the Internet has experienced the development period and the outbreak period, it gradually began to encounter bottlenecks. Some people even said that the Internet has begun to enter the second half. At this time, people have placed the hope of the next round of relay running on the blockchain.

Trust is the foundation of blockchain technology, and supporting value is the biggest highlight of blockchain technology and its greatest significance. The existing Internet network solves the communication problem, and realizes the end-to-end information transmission in the form of information copy, and breaks through the information asymmetry barrier. However, it is difficult to guarantee and confirm the uniqueness of the subject value carried on the information. For the first time, blockchain technology integrates existing technologies such as cryptography and distribution to realize the transmission of information while ensuring the uniqueness and transmission of the value of the subject above the information. And even more commendable is that on the basis of value transfer and confirmation, on the virtual online network of blockchain, it can be considered to create value and realize a more concise and safe value closed-loop network. Blockchain is of great significance to various industries, and it is very obscure for ordinary people. It is very necessary to establish a new decentralized knowledge education platform that is decentralized, efficient, and information neutral, while protecting personal information. .

A distributed blockchain knowledge sharing platform built on BQ makes all this possible. It will become a "decentralized" point-to-point direct communication sharing platform economy. The application of blockchain distributed ledger technology encourages community participants to be decentralized. The management and operation of the platform, apply the automatic compliance of smart contracts to respect the government and community city supervision regulations, and take into account inclusiveness, compliance and law compliance and efficiency. How does the BQ knowledge education platform realize the value transmission of information?

1. Resource storage layer

In view of the problems existing in the sharing process of domestic blockchain knowledge popularization education resources, adopting the blockchain network topology DHT and drawing on the blockchain consensus verification technology, BQ designed the blockchain knowledge popularization education based on blockchain Resource sharing framework, as shown in Figure 1.

Although the block data in the blockchain cannot be tampered with, the blockchain itself has security vulnerabilities. For example, Bitcoin clearly stipulates that only 51% of the nodes can effectively tamper with the block data. This is one of the vulnerabilities-2018, Bitcoin Gold (BG) suffered an illegal attack. The attacker controlled most of the computing power in the network and illegally earned more than 18 million US dollars.

Based on the above analysis, the resource storage layer adopts the "block" + "chain" storage link method to protect resource property rights: the resource supplier encapsulates the blockchain knowledge popularization education resources into blocks waiting for verification (the basic data in the block such as (Table 1), then, the system links the block to the main chain from the genesis block to the previous block, and at the same time backs up the data in the block chain to each node-each node has the same " "Account book" records all the data on the blockchain. The block contains basic information such as timestamps, resource providers, etc. These information clarify the ownership of resources. In the event of infringement disputes, the node can act as a "witness".

Second, the resource evaluation layer

The resource evaluation layer adopts a decentralized evaluation method to form a co-evaluation alliance system; the evaluator reaches a consensus on resource quality evaluation in the network based on the evaluation indicators. However, the instability of the network, the failure of basic equipment, hacker attacks, etc. will cause network delays, crashes, and resource interception. This study defines these problems as general Byzantine problems. To this end, BQ uses a PBFT algorithm that can tolerate some Byzantine nodes and is suitable for the alliance chain to ensure effective feedback of the evaluation results.

3. Resource interconnection layer

Resource interconnection layer selects DHT based on Kademlia (hereinafter referred to as "Kad") protocol, so that the resource pools between colleges can be interconnected and visited together. The technologies to realize DHT are Tapestry, CAN, Chord, Kad. Compared with the other three technologies, Kad uses a unique XOR algorithm (XOR) as the basis for distance measurement, and establishes a new topology structure to improve the routing query speed.

At the macro level, the Internet completes the transfer of value through the guarantee records of centralized institutions, and the blockchain completes the transfer of value through smart contracts. "Smart contract" is equivalent to "centralized agency", the smart contract is executed by the machine, and the centralized agency is finally executed by the person. Compared with the two, the machine is more efficient, the machine is not prone to error, the machine is more credible, and humans may be fraudulent because of bribery and other factors.

At the micro level, the information spread on the Internet can be copied and pasted at will. The information spread on the blockchain will add an ownership to each information, so that the ownership can be spread, that is, value transfer. Adding ownership to information is actually achieved through key technology in cryptography.

Blockchain IQ's five major application scenarios:

BQ community application, including community question and answer, community live broadcast, community information, community game, community application allows users to quickly integrate into the BQ community, learn and understand the latest blockchain knowledge and technology, and obtain a certain BQ return.

BQ teaching platform integrates the teaching system, student management system, knowledge sharing system, evaluation system and other systems required by the teaching scene. The diversified teaching platform allows users to obtain a better learning experience.

BQ aggregation platform will integrate multiple teaching systems of the teaching platform, and at the same time combine with BQ community applications to allow users to obtain better and richer blockchain information and blockchain knowledge.

BQ decentralized copyright exchange, in the future, a large amount of knowledge content data will be born and stored on the BQ main chain, and its copyright belongs to the original author and is protected by ecology. Use smart contract clusters to create a decentralized content copyright exchange to realize the free trading of content copyrights. The transaction information is automatically uploaded to the chain, and the permanent records cannot be tampered with.

BQ blockchain search engine intelligent system, BQ uses decentralized technology to create the world's first shared education platform, is an intelligent blockchain search engine system, distributed search engine blockchain.

This is also one of the main reasons why we are optimistic about the development of blockchain technology. Or to put it another way, instead of saying that we are optimistic about blockchain technology, it is better to say that we are optimistic about the prospects of the value internet. Blockchain technology is one of the most competitive tools in the current value internet.