Priority application of blockchain Technology
what is centralization
the so-called centralization means "ownership" or ownership by the company. For example, Tencent's q-coin, which is issued by Tencent, is a kind of centralized electronic currency, including the total amount and the issuing method, is supervised and controlled by Tencent. You can use it, trade and go shopping, but you always have to operate in the framework of Tencent, and the final right of interpretation belongs to Tencent
the issuing mode of bitcoin is preset by the program and encryption algorithm, and runs on multiple nodes all over the world. No one or organization can modify it (everyone has his own account book, so it is impossible for one person to control everyone's account book at the same time. If there is such a technology, why should it be so complicated, If you want to blackmail money into your account, you will be the richest man in the world. There is no one left, And it is not controlled by any single person or organization
take an example: for example, Lao Zhang borrows 100 yuan from Lao Li, but Lao Li is afraid that he will default, so he asks the village head to do notarization and write down the account. This is called centralization. But if you don't find the village head, you can use the loudspeaker to shout in the village: "I Lao Li lent Lao Zhang 100 yuan! Please put it in the account book. "We all put this account in our own account book. This is called decentralization
anyone who transfers money between them will release information through loudspeakers. After receiving the information, everyone will record the transaction in their own account book. With distributed ledgers, it doesn't matter if Lao Zhang or Lao Li's ledgers are lost, because Lao Zhao, Lao Ma, Lao Wang and other families have ledgers
the main advantages of blockchain are that it does not need intermediary participation, the whole process is open and transparent, and the cost is low, and the data security is high
at present, blockchain is in a stage where everyone talks about blockchain, but can't perceive its actual technical charm. Since 2017, it has graally come into our sight, and we have graally realized that bitcoin is more fierce than real estate speculation (the price of mining machinery has skyrocketed! The news is on the screen But I still don't know
so, in which fields can blockchain be applied, what kind of changes will it bring to our future life
the core key: everyone has an account book, everyone has an account book, and the information recorded in each person's account book is consistent and synchronous, and the information is completely transparent. If it is fake, it will be the public enemy of the whole people, which greatly increases the cost of data fraud
core key 2: decentralization, which does not need a central system to manage data, prevents some people from changing data and damages the interests of the majority of people
Application:
1. Account security and privacy protection: currency transfer, exchange, payment system. Blockchain can help prevent data manipulation and fraud, prevent distributed denial of service attacks (DDoS), and effectively protect users' network privacy. Key words: anti counterfeiting, anti-counterfeiting, loan payment
2. Copyright regulation and interest disputes: for example, when a song is downloaded, from the author to the procer and then to the singer, they can get payment in real time through the blockchain, without having to wait for a long time like the traditional way, or even get no reward e to right disputes. Instead of waiting for publishers to provide royalty checks, creators can freely control the process from publishing to payment through blockchain application. Key words: real time receipt, no property dispute
3. Internet of things + artificial intelligence: the intelligent devices in the Internet of things based on the blockchain will be used to monitor the real-time situation of urban infrastructure such as bridges, roads, power grids, etc. the blockchain can connect these intelligent devices together for unified management to help them monitor more efficiently. This will help people better understand how to build a smart city in the future. Key words: unified monitoring, intelligent city
4: proof of existence: in life, once you are asked to prove that you are you, that your mother is your mother, that you have never been married, that the house belongs to you, and so on, things seem very simple. Once it falls on you, it is a great trouble. The application of blockchain technology can perfectly solve the above embarrassment. At that time, all the information that belongs to you will be recorded accurately and can not be tampered with. No one has the right to change it. When the technology develops to a certain stage, birth certificate and marriage certificate may be recorded on the blockchain. Keywords: no keywords
in addition to the application scenarios mentioned above, blockchain technology can also be applied to e-commerce, data storage, logistics and other fields. As long as we grasp the characteristics of blockchain technology, it will become easy to understand.
Original title: China's blockchain instry market status and development trend analysis in 2019, widely used to accelerate the construction of Digital China. Basically, a relatively mature instrial chain has been formed. With the promotion of national policies and the increasing demand of downstream application fields, the market scale of China's blockchain instry is constantly developing, the regional concentration is high, and the instrial cluster effect is obvious. With the increasing maturity of blockchain technology, the blockchain instry is entering the 3.0 stage as a whole. It has a good performance in finance, logistics, right protection and other fields, and has made great contributions to promoting China's digital construction and accelerating the process of Digital China
instrial chain analysis of blockchain instry: there are many downstream application fields with huge development potential
from the perspective of instrial chain, China's blockchain instry includes upstream hardware, technology and infrastructure; Midstream blockchain application and technical services
application fields of downstream blockchain. The upstream hardware, technology and infrastructure mainly provide the necessary hardware, technology and infrastructure support for blockchain application. The hardware equipment includes mining machinery, ore pool, chip manufacturer, etc; General technologies include distributed storage, decentralized transaction, data service, distributed computing and other related technologies
the downstream application fields include the combination of application blockchain technology and existing instries, mainly including financial instry, logistics instry, right protection, medical health, instrial energy and many other fields. As an emerging technology, blockchain has many downstream application fields and great development potential
the application and service of midstream blockchain includes the construction of infrastructure platform and the provision of technical service support. The construction of infrastructure platform is divided into general infrastructure chain and vertical domain infrastructure chain; Technical service support includes technical support and service support. Similar to upstream technology, technical support is responsible for providing buyers with a series of technical support based on blockchain procts, such as blockchain security protection; Service support includes a series of services such as digital asset trading place, digital asset storage, media community, etc
instry chain analysis of blockchain instry Most of 360 and other enterprises use their own financial companies to apply blockchain technology to launch a new mode of blockchain + finance and broaden the application scenarios of blockchain technology
With the continuous development of China's blockchain technology and the continuous expansion of blockchain application fields, China's blockchain instry will become the forefront of global technology development and open up a new international competition track in the future2. Blockchain has become a new hot spot for innovation and entrepreneurship, and technology integration will expand new application space
3. Blockchain will be widely implemented in the real economy in the next three years and become an important support for the construction of Digital China
4. Blockchain creates a new platform economy and opens a new era of sharing economy
5. Blockchain accelerates the process of "credible digitization" and drives finance to "move from virtual to real" to serve the real economy
The blockchain supervision and standard system will be further improved, and the instrial development foundation will continue to be consolidatedA: the main application fields of blockchain technology are finance, Internet of things and logistics, public service, digital right, insurance and public welfare
First, in the field of finance,
blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields
Second, the Internet of things and logisticsblockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management
Third, in the field of public service, blockchain is closely related to people's proction and life in the fields of public management, energy and transportation. However, the centralization of these fields also brings some problems, which can be transformed by blockchain Fourthly, in the field of digital right, through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works and ensure the authenticity and uniqueness of ownership In the field of insurance, insurance institutions are responsible for fund collection, investment and claim settlement, and often have higher management and operation costs Sixth, the data stored on the public welfare fieldblockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision
- original title: market analysis of China's blockchain instry in 2019: enabling various instries to accelerate the application landing, there will be two opportunities for future applications
2019 - blockchain "mainstream application year"
since August 2018, the electronic invoice of blockchain was issued for the first time in Shenzhen. So far, it has issued more than 6 million electronic invoices, with an amount of 4 billion yuan, and has access to more than 5300 enterprises, Covering more than 110 detailed instries. In addition to the field of electronic invoice, blockchain has also been successfully implemented in many project scenarios, such as supply chain finance, legal deposit, cross-border payment, etc.
at the recent "thousands of people watching fire" conference of blockchain instry, the reporter of economic daily learned that in 2019, the technology implementation and application has brought blockchain into the "mainstream application year". On the one hand, many Internet giants have a solid technical foundation, on the other hand, they actively explore more valuable scenarios to find development opportunities in the enabling real economy
"blockchain technology can play the role of anchoring, sharing and increasing trust in the whole social information flow, making the chaotic information credible. Compared with the past, this is a" qualitative leap. " Zhang Kaixiang, chief architect of Weizhong bank's blockchain, said, "risk control and business rules design based on trusted data can improve efficiency, rece risks and rece operating costs." He pointed out that as a connector, it is not meaningful for a single enterprise to operate the blockchain, and it is more meaningful to share it as an open source solution to realize the ecological co construction of the instry
"we have been exploring and practicing open source, starting from the underlying technology platform and combining with the scenes of finance, instry, Internet of things, culture and entertainment, to jointly build an open, transparent and efficient technology and instrial community. Open source ecology helps to activate the creativity of the instry. We will continue to start from the open source community and improve a complete set of systems such as system construction and skills training, so as to benefit more people. "
in 2019, the market scale of China's blockchain instry will exceed 100 million yuan
China's blockchain instry is still in its infancy, but with the continuous support of national policies, the continuous progress of instry technology and the increasing demand of downstream application fields, China's blockchain instry is expected to continue to maintain high-speed growth. According to the statistical data of in depth analysis report on business model innovation and investment opportunities of China's blockchain instry published by foresight Instry Research Institute, the market scale of China's blockchain instry was less than 6 million yuan in 2011, and the market scale of China's blockchain instry increased by 32 million yuan by 2017, By 2018, the market scale of China's blockchain instry has reached 67 million yuan, always maintaining a rapid growth rate of more than 80%. It is predicted that the market scale of China's blockchain instry will exceed 100 million yuan in 2019, and that in 2022, driven by policy support and downstream demand, the market scale of China's blockchain instry is expected to exceed 450 million yuan
market size statistics and growth forecast of China's blockchain instry from 2015 to 2022
data source: the audited enterprise asset confirmation, registration and circulation records, etc., sorted out by foresight Instry Research Institute, are stored on the platform in the form of traceability. Based on this, banks can carry out fast financing and loan business, save the cost of guarantee and other links, greatly improve the efficiency, and make the risk of financing and loan controllable as a whole
electronic data storage is an important application field of blockchain technology.
the provisions of the Supreme People's Court on Several Issues concerning the trial of cases by Internet courts, which came into effect in September 2018, clearly states that electronic data storage can be solved by blockchain and other technical means. Xiang Dan, vice president of bibox digital asset trading platform, said that electronic data deposit is an important application field of blockchain technology“ Blockchain technology has the characteristics of preventing tampering, leaving traces in the event, post audit and security protection, which is concive to improving the credibility and authenticity of electronic evidence. The combination of blockchain and electronic data storage can rece the cost of electronic data storage, improve judicial efficiency and enable judicial business. For example, the contract management based on blockchain has been applied in many Internet courts. "
according to Zhou Jianrui, co founder of coinword, a trusted content community, the application of electronic data storage based on blockchain can also help deepen the reform of "release management and service" and improve administrative efficiency. In Beijing Haidian District and other pilot areas, blockchain technology is playing the role of efficient data sharing, secure transmission and credit support. When applied in the field of government affairs, it can realize real-time data sharing of various departments and effectively assist window personnel and examination and approval personnel to quickly verify the authenticity of materials. For example, the public security, civil affairs, housing management and other departments "on the chain", in dealing with real estate transactions can be fast and accurate, "one key" verification of multi-party information, greatly saving social costs
there will be two opportunities for the application of blockchain
because the social recognition of blockchain is not high, the people who understand and use blockchain are still very limited, and the penetration of blockchain into the real economy still needs a graal process. " Yuan Yuming, CEO of fire coin China, introced that they used the open, transparent and tamper proof characteristics of blockchain to explore a new path of art traceability and anti-counterfeiting by means of high-precision full pixel scanning and archiving; By constructing the trust mechanism in the multi-party cooperation scenario, the integral information platform for multi-party participation and resource sharing is developed“ Next, there will be two opportunities for blockchain application:
one is training. With the entry of enterprise giants one after another and the continuous penetration of the real instry, more people will learn about blockchain through training, which will become a new market demand
the second is to provide consulting and technical solutions to more traditional enterprises to help them penetrate the blockchain into more traditional fields and promote the consumption rection, efficiency enhancement, transformation and upgrading of the real instry. "
at present, China's blockchain instry mainly focuses on computing infrastructure, radiates digital currency, and derives to the penetration process of blockchain application. Infrastructure includes chip miner, mine pool and cloud computing power. Digital currency, wallet and exchange constitute the monetary system. Asset authentication, financial services and charity form a rich application ecology. From the development trend, the mining machine has experienced CPU, GPU, FPGA, until now through ASIC chips to customize mining, we can see from the mining machine calculation force curve that the mining machine calculation force has been in a soaring trend.
how to find it<
first press "m" to change the map type to cave
the place with deep color on the map is the mine cave, and the place with light color indicates high altitude.
if you can't see the mine cave, it means there is no cave in a certain depth, then you can try to dig down for a period of time, and generally you can see the mine cave
now what you need to do is to find a small mine - because what you need to do is not to dig, but to find a center for your mine
it would be better if you could get some coal
when you get to the mine cave, you'd better not dig the mine first, which may cause you to fall into a big mine cave
don't act rashly after you find the mine cave, check the whole cave first, and insert the torch. Seal all entrances to the ground
you can make a workbench first
you can also consider making a box, but I don't recommend that unless you have enough wood
you have to wait here for the next day unless you have a bed
on the second day, the first thing is to get out of the cave and build a cabin above your mine cave. It should be fully equipped with boxes, furnaces and fires. It's better to have a bed and a door. It's also necessary to figure out with the mine cave, but it's necessary to put a trap door to prevent monsters from climbing up in the middle of the night
you can do these things in a day
on the third day, you will start mining. First of all, you should take a good wooden manuscript (if you have stone, you can use stone manuscript), torch, food, wooden sword, and bow and arrow
and some stone and wood
of course, if there are stones, first integrate stone manuscript and stone sword< In the early stage, there were two kinds of most important ores:
coal mine and iron mine
iron ore is a necessary tool for making iron tools
if you want to excavate from your mine, you'd better make a door to separate your mine from other mines
the best shape of the excavated mine is 2 * 2 square type
if monsters are found, they should be eliminated in time, especially JJ monsters
remember, don't go into the big mine blindly, and don't go into the underground Canyon or abandoned mine.
The mechanism of mineral refresh in the original God is 72 hours (3 days) refresh. Four people form a team to dig the mine, and rotate every day. They can also dig all the mines of four people at one time, once every 4 days. But they still have to go to the blacksmith's place to make iron every day. Crystal ore is refreshed every 3 days, white iron ore is refreshed every 2 days, and iron ore is refreshed every 1 day
for the mining mechanism, there is no upper limit (or the upper limit is very high) for mining every day after the public beta, but the weapon experience materials obtained by forging in different ways at the blacksmith every day have a common upper limit of 300000 (equivalent to 120 crystal minerals, except weapons), which means that iron ore, white iron ore and crystal ore share the upper limit
extended data:
it is suggested that three people should take turns to dig one person's world's mine a day; Suppose we dig a on Monday; Dig B on Tuesday; Dig C on Wednesday; Thursday dig a; By analogy, there will be mines every day. Similarly, Xiaobian suggests that the resources with a brush of 48 hours should be mined once every three days
in the game of the original God, the more advanced the ore, the longer the refresh time. For example, for low-grade ore such as iron ore, the refresh rule is once a day; Pyrite, yeposhi and perlite are refreshed every two days, while crystal ores are refreshed every three days
1. Blockchain plus supply chain finance nowadays, the supply chain of most commodities, from providing raw materials to manufacturing finished procts, will involve several upstream and downstream small and medium-sized enterprises; And these enterprises are facing the pressure of unlocking supply chain working capital. Supply chain finance means that banks and other financial institutions make systematic financing arrangements for all member enterprises of the supply chain, so as to form a win-win situation between the core buyer enterprise and the supplier: the buyer optimizes the working capital, and the supplier generates additional operating cash flow, so as to minimize the risk of the whole supply chain. The traditional supply chain finance has three pain points: 1. Information can not be shared, low efficiency, poor credibility; 2. The circulation of bills is inconvenient, the settlement of contracts is slow, and there are often capital risks; 3. Credit cannot be transferred and financing is difficult. Blockchain can achieve the following functions: 1. Core enterprises, multi-level suppliers and financial institutions share transaction data, a / R and a / P data and protect business privacy; 2. The circulation of enterprise creditor's rights, automatic settlement of funds, and acceleration of enterprise payment and repayment; 3. The payment commitment of core enterprises is transferred between multi-level suppliers and financial institutions to transfer the credit of core enterprises
2. Blockchain traceability in the field of commodity traceability, the combination of blockchain and Internet of things technology can trace the whole process of commodity circulation, so as to avoid illegal vendors making use of the information asymmetry in the commodity chain to proce fake and shoddy goods. To prevent some participants from tampering with data or falsely claiming the loss of information when it is not concive to their own situation, resulting in the difficulty of proof and accountability. In addition, blockchain traceability can break through the information islands in different links of the supply chain and improve the cooperation efficiency of the supply chain
3. Blockchain helps the blockchain technology of medical services to open up many links, such as hospital prescription, pharmacist prescription review, drug distribution, drug payment, process supervision, etc. Through the distributed storage of blockchain and the accurate matching of information on the chain with patients, we can ensure the one-time dispensing effectiveness of prescriptions, eliminate prescription modification or abuse, and facilitate supervision. In the future, patient information, prescription information and drug circulation information can be encrypted and desensitized through blockchain technology, which can open up more medical application scenarios
4. The integration of blockchain and IOT instrial Internet at the 5th World Internet Conference, the supet instrial Internet platform, which integrates the Internet of things and blockchain technology, was selected as the world's leading Internet technology achievements and became the only award-winning instrial Internet platform
in addition, blockchain data sharing, blockchain judicial chain, blockchain charity, trusted digital content right services, etc. In such instries as government, finance, instry and logistics, health care, retail and Internet, block has a wide range of business application scenarios.