Blockchain Expert Committee

1.

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

2.

The 2018 global media blockchain summit was held in the financial hall of the Hong Kong Stock Exchange on the 19th. Focusing on the development prospects and instry trends of blockchain, a number of participating media made suggestions on deepening the cooperation of media blockchain and promoting the healthy development of the instry, and jointly announced the establishment of the global media blockchain alliance

According to the introction, the alliance will provide an open access mechanism for media members to integrate resources and build a reliable media blockchain platform. At the meeting, the global media blockchain alliance released the "Hong Kong initiative", advocating the media to disseminate advanced ideas, encourage ecological innovation, and continuously provide high-grade and high-quality information and services in the information dissemination of blockchain

Yu Guoming, executive director of School of Journalism and communication of Beijing Normal University, pointed out at the summit that only through full development of media blockchain can a more sound and good media ecology be formed. Mainstream media should consciously assume social responsibility in the development of media blockchain and become organizers and builders of promoting technological progress and business innovation

Ding Laibin, Secretary General of global media blockchain alliance, said that blockchain technology is expected to bring new social changes and needs to take care of its healthy development. In terms of public opinion supervision in the field of blockchain, the media should give full play to its role, tap instry value, crack down on instry fraud, and make good contributions to the development of blockchain instry

from fenghuang.com

3.

Blockchain technology has the advantages of being difficult to tamper with and easy to trace. It can play a role in identity information management, trust mechanism construction, and credit information chain of small and micro enterprises

here is an example of a bank in Nanping:

e to the outbreak of online business, the original offline signing method has been unable to meet the needs of the rapid change of the banking business, and the bank's digital construction is imminent, but the bank's risk control department has strict compliance requirements:

< UL >

online business data sensitive privacy, Is the transmission secure

does the electronic signature have legal effect

can electronic evidence be accepted by the court

< / UL >

these concerns have become obstacles for banks to introce e-contracts and carry out business digital transformation

after adopting the unique ENA initiative forensics patent technology of the "real hammer" trusted electronic evidence platform, a bank in Nanping, through the clean server of the notary office, online carries out real-time preservation, storage and certification of the electronic data of the target system, records the whole process of the electronic data from generation, transmission to storage, and finally the notary office issues the forensics preservation report with official seal, The effectiveness of the documents is notarial documents, which can be directly accepted by the court. Because the report is issued by the notary office, it has more credibility than the self certification of the third-party E-contract platform, which solves the concerns of the risk control department of the bank at one stroke. The whole process is online and automated, and the front-end customer operation has no perception

at the same time, combined with the back-end case system of "real hammer" and the outsourcing execution service, the bank realized the rapid dispute resolution of Internet business. It not only ensures the compliance and effectiveness of the electronic contract signing process, but also solves the problem that the bank cases are scattered all over the country and the cost of legal business trip is high; The litigation cycle is long and there is no efficient disposal channel

4. It's mainly about bringing together enterprises who are interested in blockchain and have ideas
it can form an instrial chain. Recently, the SMIC blockchain launched by Changsha high tech Zone is to recruit enterprises to join the chain, so that enterprises can get together.

5. 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.

6. Bitcoin is a kind of network virtual currency, which can buy real-life goods

it is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals

in 2013, the US government recognized the legal status of bitcoin, which led to a sharp rise in the price of bitcoin. In China, on November 19, 2013, a bitcoin was equivalent to 6989 yuan

7. Hello, the blockchain sector was founded in October 2017 by Yi Chen, a blockchain preacher, senior investment analyst, master of economics and senior marketing expert
blockchain instry: focusing on the blockchain instry, adhering to the consensus concept of blockchain community, we strive to provide blockchain enthusiasts with objective, scientific and third-party perspective of blockchain content information services.

8. It depends on the needs of the instry. Different instries also have differences in demand selection. Cooperation must pay attention to the strength and effect of the team. Through Baker chain, blockchain procts have good effect. At the same time, they provide technology and project after-sales service