Block chain technology Boao

1. blockchain technology uses mathematical methods to achieve distributed accounting and solve the trust problem, so as to complete the decentralization, which will bring far-reaching influence in many fields such as communication, finance, Internet of things, government management and so on
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the nodes participating in the calculation record the main chain or part of the main chain
a block contains the following three parts: transaction information, hash formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.

2. The following points are the characteristics of the blockchain summarized by jinwowo group:

1 - Decentralization: because the blockchain relies on each node to achieve system maintenance and ensure the authenticity of information transmission, it is based on distributed data storage without centralized management by a certain center, Therefore, the attack and tampering of a node will not affect the healthy operation of the whole network

2-DE Trust: the establishment of a connection between any two nodes does not need to trust each other's identity, and the data exchange between the two sides does not need the basis of mutual trust. Since all nodes in the network can act as "supervisors", there is no need to worry about fraud

3 - extensible: blockchain is an underlying open source technology, on which various kinds of extension, decentralized and distrusted applications can be realized<

4 - anonymization: the two sides of data exchange can be anonymous, and the nodes in the network can exchange data without knowing each other's identity and personal information

5 - Security and reliability: because the activities between any nodes are supervised by the whole network, and the database adopts distributed storage, for hackers, first, they can't disguise and cheat, Second, we can't control the network only by conquering a node.

3. Recently, the hottest investment is bitcoin. From financial tycoons to ordinary people, they are talking about the surge of bitcoin. Bitcoin is a kind of blockchain. I believe there are still many people who don't know much about blockchain, so today we will explain in detail what blockchain is? How to search blockchain technology patents? What is blockchain? More than 10000 years ago, human beings began to learn to use shells as an intermediary for exchanging materials, and later developed into currency. With the development of network, the circulation of digital currency has graally replaced the traditional currency, and now people's payment methods have undergone unprecedented changes. The emergence of encrypted electronic currencies such as bitcoin, Ethereum and litecoin has further prompted the whole financial system to face up to and start thinking about transformation. However, there is an important technical support behind the development of encrypted e-money which is not affected by the traditional financial system;; Block chain. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system. How to search blockchain technology patents Blockchain Revolution & sup1; A book has mentioned that blockchain is a public database, which records all transaction information and can effectively prevent tampering; It is a distributed system, which does not store on a specific server or node, but scattered in countless nodes on the network, each node only retains part of the information; It is a kind of consensus agreement, which follows a mechanism together. As the underlying technology behind cryptocurrency, including identity authentication, medical record preservation, market forecasting, asset trading, etc., blockchain is graally applied. To observe the patent applications related to global blockchain technology, the author suggests that you should refer to the definitions of block chain, distributed ledger and smart contract to expand your search conditions, rather than only limited to the patents using the word block chain. What is blockchain? How to search blockchain technology patents? If you have more questions about patent inquiry, you can continue to pay attention to Bajie intellectual property or contact us by telephone.

4. I have summarized the following two characteristics:
1. Block chain technology is a decentralized consensus mechanism to maintain a complete, distributed and tamper proof ledger database. It can enable the participants in the blockchain to achieve a unified ledger system without establishing a trust relationship. 2. Renren blockchain technology service platform does not need to develop one click to create its own blockchain system to quickly build blockchain infrastructure; One click to complete the development and deployment of blockchain applications; To provide your customers with open, transparent and credible services.

5.

On the morning of May 28, a special actor played Mao Zedong to participate in the 2018 Boao Asian blockchain forum. The video was forwarded in the circle of friends. In his speech, the actor said, "I thank you in the name of Mao Zedong.". According to the information of the organizer, the organizing committee includes panda capital and other investment institutions, and the activity is supported by Martian finance and other blockchain media. Beijing News reporter learned that panda capital and Mars finance and economics issued clarification statements afterwards, saying that they did not participate in the activities or cooperate with the forum. At the same time, the Organizing Committee announced that the actor's speech does not represent the organizing committee, but is only a part of the performance

according to the notice on prohibiting the use of the image of Party and state leaders for commercial promotion issued by the State Administration for Instry and commerce, it is prohibited to use and display the image and inscription of Party and state leaders (including those who have left or died) on commodities and their packages, as well as any form of expression involving the name of Party and state leaders; It is forbidden for enterprises to use the name and image of the party and state leaders to carry out any form of commercial propaganda and promotion activities. They are not allowed to use the images and inscriptions of the party and state leaders (including those who have left or died), or use special actors to promote procts or services with the image of the leaders

content source: Beijing News

6. In September 2016, the international organization for Standardization (ISO) established the Technical Committee on blockchain and Distributed Accounting (ISO / TC 307), which is responsible for formulating international standards in the field of blockchain and distributed accounting. In March 2017, China Institute of electronic technology standardization undertook ISO / TC 307 domestic technical counterpart. In December 2019, the Ministry of instry and information technology organized the preparation of the National Technical Committee for standardization of blockchain and distributed accounting technology, and the undertaking unit of the Secretariat is China Institute of electronic technology standardization. At present, China Institute of electronic technology standardization is responsible for testing the blockchain system to see if it meets the blockchain standards. After passing the test, relevant certificates will be issued. Shenzhen blockchain instry will accelerate the development of standardization. On June 11, 2020, the fourth China blockchain development competition and the Guangdong Seminar on blockchain national standards and system testing standards were held in Shenzhen. The first blockchain standardization evaluation workstation that can professionally apply for and test national standards was set up in Shenzhen.

7. From April 18 to 21, the Boao Forum for Asia 2021 annual meeting was held at the Boao Forum for Asia International Conference Center in Hainan. During the meeting, Li Bo, vice president of the people's Bank of China, held a speech at the Boao Forum for Asia & lt; Digital payment and digital currency; When making a video speech at the sub forum, he talked about the supervision of bitcoin and stable currency, and made a clear definition of bitcoin; Bitcoin is an encrypted asset and an investment option. It is not a currency, but an alternative investment& rdquo; He believes that encryption assets may play a major role in the future as an investment tool or alternative investment. As an investment tool, many countries, including China, are studying its regulatory environment

The cross-border payment of digital currency is not an easy task. The cross-border payment of digital currency is not only a technical problem. Each country has its own macro-control needs. It is necessary to ensure the independence of monetary policy and do a good job in anti money laundering and anti-terrorism financing. In addition, the exchange rate system of each country is not the same. We should also respect the monetary sovereignty of central banks, not pursue a particular currency; To rule the world;. It is necessary to build a healthy ecosystem and form a special payment corridor in order to control the possible impact of the pilot project within a controllable range, or slow down its possible impact. As far as the specific implementation methods are concerned, there are three ways in the meeting. One is to make different central bank digital currencies compatible with each other, that is to say, different systems can be connected; One is to establish some interconnection lines to create a more closed-loop system. Different central bank digital currencies can establish seamless connection through different interfaces and interfaces; There is also a most radical approach, that is, to create an integrated system to accommodate different central banks' digital currencies and put them into the same operational framework

However, in the future, digital currency and cash will be in parallel and graally replaced for a long time. When the era of digital currency really comes, people will carry less and less cash, travel more and more safe, poverty alleviation more and more accurate, corruption more and more difficult to escape, and thieves more and more difficult