Blockchain cannot feel its own existence

1.

blockchain is a term in the field of information technology. In essence, it is a shared database. The data or information stored in it is characterized by "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects

on January 10, 2019, the state Internet Information Office issued the regulations on the management of blockchain information services. In October 24, 2019, ring the eighteenth collective learning of the Central Political Bureau, general secretary Xi Jinping stressed that "block chain as an important breakthrough in core technology and independent innovation", "accelerating the development of block chain technology and instrial innovation". "Blockchain" has entered the public field of vision and become the focus of social attention

on December 2, 2019, the word was selected into the top ten catchwords of "biting words" in 2019

extended data:

Application of blockchain Finance:

since 2016, the major financial giants have also carried out blockchain innovation projects to explore the possibility of applying blockchain Technology in various financial scenarios. In particular, Puyin group took the lead in creating a "blockchain +" standard digital currency

standard digital currency refers to the process of assets identification, evaluation, right confirmation and insurance completed by a third party organization, which is written into the blockchain through careful digital algorithm to form the standard corresponding relationship between assets and digital currency, which is called standard digital currency

in order to realize the great leap forward development of blockchain finance, promote the new development of China's economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that has been struggling for generations, Puyin group will hold the Guiyang strategic development ceremony of Puyin blockchain finance in Guizhou on December 9, 2016

the meeting will discuss the realization of digital circulation of assets by blockchain, the financial transaction mode of blockchain, and the application of blockchain services and social public instry. This conference will mark the beginning of the application of blockchain finance and the change and development of the new financial ecology

2. What we need to do is to strengthen our self-learning. If we want to make effective investment, the most important thing is to have a deeper understanding of the knowledge of blockchain and form our own recognition mode through practice, so as to improve our judgment ability.

3. Yes, blockchain is a high-risk project.

4.

Since 2017, the concept of blockchain, which has been popular all over the society and the world, is still heating up, attracting people and social funds; Boost bitcoin, as well as similar network "encrypted digital currency" (such as ether coin, Wright coin, etc.) price rise, created a lot of "overnight rich" myth. The argument that digital currency and blockchain will subvert tradition and profoundly change the world is constantly rising. The start-up and development of blockchain seems to be coming like a roaring sea, but it is more and more concentrated in coin making and speculation, and more and more trapped in the thinking and paradigm of "bitcoin blockchain" of mining and coin making

in the case that bitcoin must be exchanged with fiat money and must join the network trading platform and other auxiliary links in order to play a greater function, the characteristics of bitcoin blockchain such as area center and disintermediation may have serious problems. In the real world, if the transfer of monetary assets is operated through the bitcoin blockchain system, it will actually increase the intermediary link rather than disintermediation. Moreover, because the bitcoin system is highly anonymous and deliberately evades supervision, it is difficult to fully meet the requirements of anti money laundering and anti-terrorism transportation. On the contrary, many new serious problems may arise, Many arguments about bitcoin and blockchain are difficult to hold

those unseen pain points

the so-called labels of bitcoin blockchain, such as "decentralization", "democracy, equality and freedom", can not stand scrutiny; The truth is that if it puts too much emphasis on "decentralization", it will affect efficiency; Bitcoin has not yet become a real currency; The ICO type fund-raising method is not concive to the development of blockchain... But when people enthusiastically pursue blockchain like faith, they can not see these "pain points":

first, bitcoin blockchain is difficult to build a decentralized, democratic and equal society

bitcoin blockchain system envisages the establishment of an equal and democratic world for all participants, but in fact, the core team of coding maintenance and the main forces involved in mining and operation are not so equal and democratic. Due to the influence of computer computing power, the mining and acquisition of bitcoin are not equal as advertised. As a result of competition, the opportunities of mining and acquiring bitcoin are more and more concentrated on a small number of mining pools or nodes with powerful computing power. However, more and more people are involved in mining, consuming resources, but they may not be able to obtain bitcoin. This makes bitcoin more occupied by a few people, and will enhance its voice or influence on the adjustment of network rules

secondly, there are strict conditions for bitcoin blockchain to "de trust" and "de mediate" point-to-point transactions

5. At present, there are still many problems in the practical application of blockchain technology, such as low performance, less transaction frequency per unit time, lack of technology application ecological environment, lack of relevant application cases and fraud in the name of blockchain.

6. Qihuan not only provides power exchange, but also provides maintenance services. Qihuan app uses blockchain technology to track the data of trams, batteries and power exchange cabinets to provide services!

7. I choose Chinese currency! Low operation delay, idle can also save money mining EOS, very suitable.

8. Can solve, bit box is a good application proof

9.

Characteristics of blockchain

one of the four characteristics of blockchain: tamper proof

the most easily understood characteristic of blockchain is tamper proof

tamper proof is based on the unique account book of "block + Chain": the blocks with transactions are added to the end of the chain in time order. To modify the data in a block, you need to regenerate all blocks after it
one of the important roles of consensus mechanism is to make it almost impossible to modify a large number of blocks at high cost. Take the blockchain network (such as bitcoin and Ethereum) with workload proof as an example, only with 51% of computing power can all blocks be regenerated to tamper with data. However, the destruction of data is not in line with the self-interest of players with large computing power. This practical design enhances the reliability of data on the blockchain
generally, the transaction data in the blockchain ledger can not be "modified", it can only be "modified" through the new transactions that are approved. The process of correction will leave traces, which is why the blockchain can not be tampered with. Tampering refers to changing or misinterpreting by means of forgery
in today's common files and relational data, unless a special design is adopted, the system itself does not record modification traces. Blockchain ledger adopts a design different from that of files and databases. It draws on the design of ledger in reality, that is, to retain the traces of records. Therefore, we can not "modify" the account book without leaving traces, but can only "modify" the account book (see Figure 2)

Figure 6: bitcoin is centralized in the organization and logically centralized

when we imagine the future organization, the ideal prototype in our mind is often bitcoin organization: completely decentralized autonomous organization. But in practice, for the sake of efficiency and advancement, we will move closer to the centralized organization and finally find a suitable balance point

nowadays, in the blockchain projects that are created and issued through the smart contract of Ethereum and run in a community or ecological way, the ideal state of many projects is similar to the bitcoin organization, but the actual situation is between the completely decentralized organization and the traditional company

when we discuss the fourth feature of blockchain, which is decentralized self-organization, we are actually going out of the code world, involving human organization and collaboration. Now, various discussions and practical explorations have also revealed the significance of blockchain beyond technology: it may serve as an infrastructure to support human proction organization and collaborative change. This is another example of the complete isomorphism between blockchain and Internet. Internet is not only a technology, it has changed people's organization and collaboration

in general, Ethereum has brought blockchain into a new stage. When discussing Ethereum, if we want to summarize two key words, they are smart contract and token; If I can only say one, I will choose "Tong Zheng". I would rather look for its meaning from the history of the Internet and repeat the previous analogy: as a token of value, its role is similar to HTML. With HTML, what kind of website to build depends entirely on our imagination

10. There is a misunderstanding here. We all think that the technology is advanced and difficult to understand. It is difficult for us to understand the technology of non professional technicians, let alone use it to judge whether a project is worth investing or not. In fact, the technology is not so difficult to understand. The underlying technology of the blockchain is more of a kind of mathematical logic, which takes time to understand. However, it does not need the programming foundation, and ordinary investors can understand it. We can all make value investment by looking at technology.