Position: Home page » Blockchain » How will blockchain define world 6

How will blockchain define world 6

Publish: 2021-04-27 13:02:55
1. The definition of Chongqing jinwowo analysis blockchain technology is as follows:
1. Blockchain is a distributed database (system) placed in a non secure environment
2. The blockchain uses cryptography to ensure that the existing data cannot be tampered with
3, the blockchain uses consensus algorithm to reach consensus on new data
the system with the above three properties is blockchain.
2. At present, blockchain technology is mainly applied in smart contract, identity authentication and asset transaction

in addition to solving the security problem, blockchain technology can also change the following areas:

1. In the future, music right distribution is likely to enter the stage of blockchain, removing the intermediate link, so that musicians can get more direct income. In the past, record companies or the Internet were required to increase user stickiness. There were a lot of fees in the middle of promotion or song playing, but not many were really given to the authors, because the original right was still in the hands of several major record companies

2. Writing right is the same. For example, you may have to find a publisher before. This right can't be sold many times, and the money given to the author is also very small. With blockchain technology, all users need to pay the right fee to the author, not limited to a single publisher. Previously, Mr. Li Xiaolai did the press one project, which is mainly aimed at right distribution

3. The Internet of things and blockchain technology will combine to proce the blockchain Internet of things (Biot). Blockchain Internet of things can greatly rece the risk of hacker attacks. With the help of blockchain Internet of things, it may be as convenient as mobile phones to obtain warehouse sensor data

Kevin Kelly's book out of control has become the wind vane of the development of the Internet. In his later book necessity, he also mentioned that "technology has a preference in nature, which makes it move in a certain direction. On the premise that other conditions are the same, the physical and mathematical principles that determine the development of science and technology will favor certain specific behaviors

the development of blockchain technology is an "inevitable" trend, and bitcoin and some valuable digital currencies are only proced because of one of the needs. Today's blockchain is like the Internet in 1994. The development of the times will screen out the best technology and procts. It's just a matter of time

now there are too many "pseudo blockchain" projects focusing on blockchain, because too many people blindly invest in them without understanding. I want to make a fortune in this market. Those people are aiming at leeks that enter the coin circle without learning anything. They casually make small packages on the open public chain, issue a coin, hold a roadshow and want to circle a group of people to come in. They want to run after they circle money. In fact, they have no actual technical content and can't solve any practical problems.
3. The technology behind bitcoin has established a reliable account book, which has changed many people's lives. Its significance goes far beyond the scope of cryptocurrency
1. When Honran police rushed into Mariana Catalina Izaguirre's home one day in 2009 and wanted to expel her, she had lived in this shabby house for more than 30 years. Unlike her neighbor, Mariana Catalina Izaguirre even has a government housing certificate, but unfortunately, according to the information from the local government housing authority, the housing department and another person, the "homeowner", applied to the court for an expulsion order, and finally Ms. lzaguirre was forced to leave
this kind of wrangling is very common all over the world e to unclear registration or missing records. The lack of housing ownership protection is also the source of injustice. It has also become difficult to use houses or land as collateral for financing
bitcoin can make such problems disappear. Bitcoin is a "smart" currency based on encryption algorithm. We should pay more attention to the technology behind bitcoin: blockchain. It means more than money or cash. It creates a way of accounting to solve mutual distrust
that's why politicians consulted Factom, an American start-up that provides a prototype for land registration based on regional chains, to clean up Honran property institutions. Greece is also interested. It has no proper land registration policy. Only 7% of the land is right on the map
2. Blockchain and other similar "distributed account book" applications can be extended to prevent diamond theft and supermarket pipeline. NASDAQ Exchange will soon use blockchain system to record transactions of private enterprises. British banks dislike technological civilization, but it seems to be stimulated: in its research report last year, it wrote that distributed accounting is a great innovation and will have a profound impact on the financial instry
politicians think further: when partners and the left gathered in this year's ouishare Fest in Paris to discuss how grassroots enterprises have shaken big data companies such as Facebook, the regional chain appeared in every speech. In the dream of freedom in the world, more government regulations are replaced by private contracts between indivials - encryption algorithms will strengthen themselves
the blockchain was conceived by Satoshi Nakamoto, the amazing and so far the only confirmed founder of bitcoin - "completely equivalent electronic currency," he wrote in an article published in 2008. In order for it to be like money, bitcoin has to be transferred from the account it is fighting for, and can be consumed twice by the same person. In order to realize the dream of a decentralized system like Nakamoto, bitcoin must avoid any dependence on third parties, such as banks hidden behind ordinary payment systems
blockchain can replace the third party. It can hold the transaction history of each bitcoin and provide evidence of any person at any time. Distribution systems can be replicated in thousands of computers - the "nodes" of bitcoin - everywhere in the world, and can be made public. But even with such openness, it is still credible and safe. The complexity of the mathematical algorithm and the computational brute force cracking built in its "consensus mechanism" - the node agrees to upgrade the blockchain process according to the bitcoin circulation - ensure this
for example, Alice wants to pay Bob for rental services. They all have bitcoin wallets - software that goes directly to the blockchain, not to the web like a browser, but doesn't identify users in the system. When Alice's wallet began to apply, the transaction started, and the blockchain began to change to show that Alice's wallet was less and Bob's was more

the network needs to change through several stages in this process. When the application passes through multiple nodes in the network, check the ledger to confirm whether Alice has the bitcoin she wants to spend. If everything looks ok, the specific node will instruct miners to bundle Alice's request to connect with other similar reputable transactions, and create a new mole in the blockchain
this involves decomposing the mole into a series of data of specified length by encrypting a hash function (see chart). Like many encryptions, this hash is a one-way street. Data can be dispersed, but conversely, it is impossible to aggregate data from dispersion. But even though hash doesn't hold data, it's still unique. Changing the entry mole in any way - changing the transaction with a simple number - hashing will be different
3. Along with other data, hash will be placed in the first place (header) of the development mole. The first one then becomes the basis of practical mathematical puzzles, again involving hash functions. Puzzles can only be solved by tests and errors. Through the Internet, miners is experimenting with hundreds of millions of possibilities to find answers. When a miner finally finds out the answer, other nodes will quickly check (go one-way again: it's hard to solve, but it's easy to check), and each node will confirm the solution, and then upgrade to the blockchain. The first hash will be the confirmation line for the new mole, which is now part of the account book. Alice pays Bob and all other transactions in the mole are confirmed
in the decryption phase, three things are introced to greatly enhance the security of bitcoin. One is chance. You can't predict which miner will solve the puzzle, so you can't predict who will upgrade the blockchain at a given time, except that it must be the most diligent miner, not other random slackers. It makes cheating difficult
the second point is history. Each new first part contains the hash function of the first part of the previous mole, and it contains the hash function of the last part, so it goes back and forth to the starting point. This association makes the mole a circular chain. Starting with all the data in the account book, it's a small matter to regenerate the top of the latest mole. Despite making a change anywhere - even back to one of the earliest moles - the first changed mole will be different. This means the same for the next mole, and all the later moles. The account book will not pass through the latest mole identifier and will be rejected
is there a solution? Imagine Alice changing her mind to pay Bob and trying to rewrite history so that bitcoin will still be in her purse. If she is a capable miner, she can solve the urgent puzzle and make a new version of blockchain. But in the time she does, the rest of the network will have extended the original blockchain. Nodes will always work in the longest version of the blockchain. This rule prevented two miners from finding a solution at the same time and led to worse consequences in the chain than temporary forks. It also prevents cheating. In order for the system to accept her new version, Alice needs to extend it faster than anyone else. Not being able to control more than half of the computers - the technical term is "51% attack" - should not be possible
4, not to mention the possibility of subverting the above network, another deep-seated question is: why do you want to be a member of this network? The answer is the third "decryption" step, and there are rewards. Each new block has a new bitcoin, and the person who solves the puzzle will get 25 bitcoin rewards, about $7500
all the above ingenious designs are not the real attraction of bitcoin. Its value lies in instability and unpredictability, as shown in the figure below, but the total amount of bitcoin is fixed. The mechanism of blockchain also works well. According to a website called blockchain.info, on average, more than 120000 transactions are added to the blockchain every day, which means about $75 million in transactions. At present, there are 380000 blocks, and the size of this account book is nearly 45gb

most of the data in the blockchain is bitcoin, but it is not necessary. Mr Nakamoto has also created a distributed system and written a related explanation. Technology geeks call it: open platform. This platform imitates the Internet, including operating systems such as Android or windows. Developers can develop applications based on the basic functions of blockchain without anyone's permission. Chris Dixon of Andreessen Horowitz, which invests in bitcoin startups, said: this kind of network will eventually become a public database. It is understood that Andreessen Horowitz has invested in coinbase, a bitcoin wallet company, and 21, a bitcoin hardware equipment company for the public
at present, the application based on blockchain has three major fields. The first is to complete all suggestions through blockchain. Colo, a start-up company, is betting that in this model, they have developed an algorithm to "Polish" some small bitcoin transactions, so that they can represent such transactions as securities and precious metals
to protect the validity of land or house signature has become a typical application in the second category. Bitcoin transactions will add the signature to the account book of the blockchain. Everledger, a start-up company, protects luxury goods in this way. For example, they record the texture attribute of a gem in the blockchain data. If the gem is lost, it can provide the most intuitive proof. Onename stores personal information in a similar way; Note that this kind of application is not pure bitcoin transaction, so you need to give more trust first. For example, you need to tell the application developer some accurate information about yourself
the third kind of application has greater ambition, and "smart contract" can automatically detect whether there are various environments in which it can take effect. This is because bitcoin can be programmed so that it can be available or unavailable in special situations
lighthouse, founded by Mike Hearn, a well-known bitcoin engineer, is a decentralized crowdsourcing project. If enough money goes into the project, then everything starts. If the goal is not reached, it stops. Heran believes that his project can be cheaper and more independent than those of his friends who use bitcoin
5. According to Albert Wenger of USV, a New York venture capital company, the emergence of distributed ledgers has opened up an almost new quadrant of possibilities. This company has invested in a number of decentralized companies, such as openbazaar, which provides P2P transactions. In addition to cheering for the blockchain, some people question its security and scalability. Blockchain is very suitable for bitcoin, but in some niche applications, it can't support the use of millions of users
although Nakamoto's blockchain design has proved to be invincible so far, academic research also believes that it is almost impossible to do bad things on the blockchain without controlling 51% of the whole blockchain. In the past, bitcoin players were limited to a small circle. Today, bitcoin mining is controlled by various big bitcoin pools, where small miners share their efforts and get rewards
another concern is the environment. In order to get more bitcoin, the miners are more interested in computing power
4. The traditional centralized institutions occupy most of the social resources, they are the collectors and monopolists of market information and make profits. Blockchain will let all this become the past, and the future will be an era of information sharing
the book "blockchain: blueprint and guide to the new economy" (New Star Press, January 2016), written by Melanie Swann, founder of blockchain Science Research Institute, points out that blockchain plays the same role in trust as the Internet in information. Like the early Internet, blockchain has the potential to innovate everything, and blockchain is the source of power for the fourth generation of instrial revolution. Melanie also constructively proposed the possibility of using blockchain to automatically track all digital behaviors and create a decentralized digital information base for identity verification, so as to provide services traditionally provided at the national level with lower cost and more efficiency
at present, international giants such as Microsoft, Tencent, Wanda, Goldman Sachs, JPMorgan Chase and Dell are all testing blockchain projects, and small and micro enterprises such as European crowdfunding have become the first to eat crabs.
5. Blockchain refers to a distributed and shareable public account book that can be trusted through consensus mechanism and checked by each participant. However, no centralized single user can control it. It can only be revised according to strict rules and open protocols<

features:
1. Decentralization
in current system design or application development, central server is considered to realize all information exchange and data storage. But in the blockchain, through the construction of distributed architecture and open source protocol, all participants participate in data recording and verification, and then send them to each node through distributed propagation. Even if some nodes are attacked or damaged, the integrity and information update of the whole database will not be affected, which means that each participating node is "self-centered"

2, to trust
in traditional Internet mode, it is through the trusted central node (such as the housing registration system) or the third party channel (such as Alipay) to carry out the matching verification and trust accumulation, so it can not achieve the center of value transfer.

3. Timestamp
blocks are generated by packaging all the information (including data and code) generated in a certain period of time. The index information of the previous block is included in the page capital of each next block, and the chain is formed by end-to-end connection. Therefore, the addition of block (Complete History) and chain (complete verification) forms a time stamp (which can trace the complete history). It stores all the historical data in the system, provides retrieval and search functions for each data, and can trace the origin and verify each data by means of blockchain structure<

4. Asymmetric encryption
blockchain is an asymmetric encryption algorithm through the mathematical consensus mechanism, that is, a "key pair" is used in the process of encryption and decryption, and the two keys in the "key pair" have the characteristics of asymmetry: first, only the other key can be decrypted after one key is encrypted; Second, after one of the keys is public, other people can't work out another key according to the public key.
6. Following yesterday's content, after bitcoin has been graally accepted by people, blockchain, a new technology born out of bitcoin technology, has graally entered people's vision. So what is the operation principle of blockchain technology? Why do Internet tycoons think this technology will redefine the world? Let's take a look at the second blockchain topic brought by today's turong

in recent years, blockchain technology is experiencing rapid development and has attracted more than one billion US dollars of investment. In our opinion, the most important thing is that the blockchain is coming into the vision of financial institutions, large enterprises and government decision-makers, and there is a trend of economic change triggered by "grassroots forces"

Stock Exchange: in December 2015, NASDAQ first used blockchain technology in indivial stock dealers, and its partner chain.com first used LINQ, a trading platform based on blockchain technology, when issuing shares to a private investor, which was officially developed by Nasdaq and chain.com

accounting and auditing institutions: Recently, PwC has started to set up its blockchain technology team, and started to investigate the potential application of the blockchain technology by PwC customers, as well as to promote the understanding of the technology in the financial instry. Before that, its two peers, Deloitte and Ernst & young, had already announced their entry into the blockchain. Deloitte said in an interview with coindesk that it is trying to apply blockchain technology to the automatic auditing of clients and the consulting services on applications of crowdsourcing (companies freely outsource to non-specific public networks).
7. The tide of science and technology changes, pushing the wheel of human society rolling forward. Looking back on the past, human society has experienced mechanical revolution, electrical automation revolution, electronic information revolution and Internet technology revolution. Each revolution has had a profound impact on our proction and life style; Looking to the future, whether blockchain can stand on the top of the new wave and bring great changes to the politics, economy, culture and life of human society, let's wait and see
just as the Internet has changed our way of life, blockchain may subvert the existing instries. For example, intellectual property protection is the best example. Intellectual property protection is a problem all over the world, but it can be easily solved by using blockchain technology. The best example is the content publishing platform decent, which takes advantage of the non tamperable features of blockchain.
8. Blockchain is the underlying technology of bitcoin, which refers to a series of data blocks generated by using cryptographic methods. Each data block contains the information of all bitcoin network transactions in the past ten minutes, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block. Compared with the traditional technology, blockchain represents a new decentralized technology based on P2P. It can store transaction data safely without the audit of any centralized organization, because this process is completely completed by the whole network. In addition to the financial field, blockchain technology can also be widely used in various fields
taking financial transactions as an example, in today's network structure, there is a centralized organization similar to the exchange and clearing center as the data processing center. Through the blockchain technology to solve the trust problem between network nodes, implement the mismatch of time and space, provide a widely connected, decentralized distributed cloud network. Each transaction is checked by these nodes together, so that there is no need to complete it with the help of credit intermediaries such as banks and exchanges Sohu)
bitcoin, Ruitai coin, Laite coin and other digital currencies are also procts of blockchain technology.
Hot content
Inn digger Publish: 2021-05-29 20:04:36 Views: 341
Purchase of virtual currency in trust contract dispute Publish: 2021-05-29 20:04:33 Views: 942
Blockchain trust machine Publish: 2021-05-29 20:04:26 Views: 720
Brief introduction of ant mine Publish: 2021-05-29 20:04:25 Views: 848
Will digital currency open in November Publish: 2021-05-29 19:56:16 Views: 861
Global digital currency asset exchange Publish: 2021-05-29 19:54:29 Views: 603
Mining chip machine S11 Publish: 2021-05-29 19:54:26 Views: 945
Ethereum algorithm Sha3 Publish: 2021-05-29 19:52:40 Views: 643
Talking about blockchain is not reliable Publish: 2021-05-29 19:52:26 Views: 754
Mining machine node query Publish: 2021-05-29 19:36:37 Views: 750