联想s5为什么叫区块链呢,联想s5为什么叫区块链技术

近年来，随着区块链技术的发展，联想s5也推出了区块链版本，因此被称为“区块链手机”。那么，联想s5为什么叫区块链呢？

首先，要了解区块链技术。区块链技术是一种分布式账本技术，它利用数字签名和密码学的原理，将信息分散地存储在不同的节点上，从而实现信息的安全性和不可篡改性。由于区块链技术具有去中心化、安全性、不可篡改性、可信赖性等特点，它已经成为当今最重要的技术之一。

联想s5采用了区块链技术，为用户提供了更安全的数据存储和传输服务，以及更可靠的身份验证机制。它还支持多种数字货币，可以为用户提供便捷的数字货币交易服务，从而帮助用户实现财富多元化。

此外，联想s5采用了高端安全技术，可以为用户提供安全可靠的信息存储和传输服务，同时还支持多种数字货币，可以实现财富多元化。

总之，联想s5之所以被称为“区块链手机”，是因为它采用了区块链技术，可以为用户提供更安全的数据存储和传输服务，以及更可靠的身份验证机制，同时还支持多种数字货币，可以实现财富多元化。因此，联想s5被称为“区块链手机”，是非常合理的。

❶ What is different about Lenovo s5, the first blockchain mobile phone?

Lenovo S5 is equipped with a deeply optimized, innovatively upgraded ZUI 4.0 operating system and original Android applications In the third state, this industry-first "process quick freezing" function allows Android phones to run in iOS mode for the first time. Targeting the culprit of Android phone lags - applications running in the background, "process quick freezing" can not only speed up the CPU by 25 %, the memory is released by 30%, and when the paused application is enabled again, the previous state can be directly restored, which not only makes the phone as smooth as the iPhone, but also makes the user's application switching experience more convenient.
In addition, Lenovo S5 pioneered the dual-domain isolation and full-domain encryption secure space - "Z space", innovatively solving industry problems of payment security, protected by 17 patents, full-scenario payment, and no dead-end protection to comprehensively protect users. The security of accounts, passwords and online shopping, and supporting the latest blockchain technology (ChainNova) from the bottom up, make the future of Lenovo mobile phones more than just imagination. This means that Lenovo may become the leader in the future direction of smartphones and take the lead in the intelligent direction of mobile business.

❷ Blockchain mobile phones may be the biggest joke this year. What exactly is a blockchain phone?

In January 2018, Candy Phone officially released the so-called Candy Genesis version of the blockchain phone; and on March 16, Changhong Mobile released a self-proclaimed The world's first blockchain mobile phone R8 Kirin; then on March 20, when Lenovo Mobile announced its return to the Chinese market, it released a new phone S5. At the same time, Chang Cheng said mysteriously at the press conference that this is also a new phone. A blockchain mobile phone.

Whether blockchain mobile phones have a future, you will only know:

On the one hand, blockchain mobile phones are a hot spot that both smartphone manufacturers and blockchain project parties want to take advantage of. Concept, on the other hand, blockchain mobile phones have also been proven to have development space and application scenarios worth imagining.

On August 27 this year, China Telecom’s Blockchain and Digital Economy Joint Laboratory released the “Blockchain Smartphone White Paper in the 5G Era” at the 2019 China International Intelligent Industry Expo.

The white paper points out that currently blockchain mobile phones have not yet been widely produced. Most existing blockchain mobile phone merchants use blockchain wallets to hype market hot spots and have not made breakthroughs in blockchain technology. This has resulted in the poor performance of existing blockchain phones, thus hindering their widespread use in the market. The white paper also proposes several scenarios that 5G blockchain mobile phones can be combined with, including financial applications, digital identity authentication, supply chain traceability applications, judicial applications and express delivery applications.

Digital identity authentication: Use the decentralization of blockchain technology to conduct ID authentication to verify user identity. This authentication identity can be added to all interfaces, so there is no need to worry about forgetting the username and password of each website.

Financial applications: Mobile phones can automatically record credit information with the help of blockchain program algorithmsinterest. When a lending relationship occurs, the bank can directly complete the credit retrieval through digital identity authentication. At the same time, customer information and transactions will also be recorded on the blockchain as a voucher.

Supply chain traceability application: The blockchain timestamp existence proof mechanism can solve the uniqueness of participating data in the supply chain system, achieve effective accountability and anti-counterfeiting, and integrate procurement, production, logistics, sales and supervision. link. In terms of judicial applications, blockchain mobile phones can ensure the authenticity and uniqueness of electronic data. The electronic data generation, storage, extraction and verification system based on blockchain are difficult to be tampered with. Therefore, it will be of great help to confirm the authenticity of Internet behavior and the validity of the law.

Express delivery industry application: Through the digital signature and public and private key encryption of blockchain mobile phones, the security of delivery information can be ensured, and inquiries can also be completed on the chain. In addition, the entire circulation record of the item can be traced through the blockchain mobile phone. Once counterfeit goods, counterfeit claims and other issues are discovered, they can be traced.

These five directions all mean that blockchain mobile phones can take advantage of the non-tamperable, open and transparent security features of blockchain technology to bring convenience to users.

When the 5G network, which has the advantages of high speed, low power consumption, and massive connections, encounters blockchain technology, it can reduce errors and forks caused by network delays, increase node participation, and decentralize assistance areas. The shorter blocking time of the blockchain may bring considerable impetus to improving the reliability and scalability of the blockchain network itself, and play a greater role in the above application scenarios.

In the era of mobile Internet, mobile phones, as smart hardware terminals, have helped people realize the vision of a digital cashless society, replacing the use of wallets, bank cards, bus cards, etc. The new blockchain trend has arrived, and in 5g With the support of technology, can blockchain mobile phones become a "super species" that can solve more problems such as blacklist updates and recording transaction certificates faster and more conveniently, instead of being just a gimmick product? Will more powerful manufacturers join in R&D? Worth the wait.

Note: Some people also say vividly that in fact, the mahjong we are familiar with is also a blockchain concept.

According to expert speculation, the prospects of blockchain are very broad. Blockchain can be used to encrypt and prevent counterfeiting in any activities related to credit. But no one knows when society will develop to this ideal state and when blockchain will show its full potential. Internet search results - Blockchain mobile phones. Also, please use more Internet searches to increase your awareness!

❸ What is the concept of blockchain? What exactly is blockchain? Read it in three minutes!

On October 25, 2019, Xinwen Broadcast sent a very important signal: the country must vigorously develop blockchain. After that, blockchain has become an Internet celebrity, and the figure of "blockchain" is floating in the streets and alleys. In fact, many technology companies have already deployed blockchain technology.

Although blockchain is very popular, many people do not know much about blockchain.

What is blockchain?

Let’s first take a look at how Du Niang explained it. Network display: Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Why is blockchain called blockchain?

The blockchain is linked by blocks one by one, and the blocks are storage units one by one, which record the communication information of each block node. The blocks are much like the records of the database. Writing data every time creates a block. With the expansion of information exchange, one block continues with another, and the result is called a blockchain.

What are the characteristics of blockchain?

Blockchain mainly has the following characteristics:

1. Decentralization: In the blockchain system, every node has equal rights. and obligations, there is no central control here. Decentralization has well established trust relationships with each other. Although there is no central management organization, people can collaborate with each other and trust each other. This mainly applies blockchain distributed ledger technology.

2. Openness: Blockchain data is open to everyone. Except for some encrypted information that is not open, everyone can check the data here.

3. Independence: The entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without any human intervention.

4. Security: Blockchain has a certain degree of security and cannot be tampered with. Because everyone in the blockchain system has the same ledger, if someone wants to tamper with it, it is possible to forge a non-existent record only if they control more than 51% of the accounting nodes. Of course, this is basically impossible. This is mainly due to the core technology of the blockchain: the consensus mechanism. The consensus mechanism has the characteristics of "the minority obeys the majority" and "everyone is equal".

5. Anonymity: Many people think that if the blockchain is so open and transparent, will we lose privacy? In fact, no, although the transaction information in the blockchain is open and transparent, the identity information of the account is encrypted and can only be accessed with authorization.

Now let me tell you a story to help you better understand the blockchain.

There are three people in the family, mom, dad, older brother and younger brother. Last year, my father was in charge of the family's account books. He was responsible for all the family's income and expenses alone.

However, on the day of Double Eleven, my mother, who has always been frugal, wanted to buy herself a beautiful piece of clothing on a certain online store. When she checked the account book, she found something was wrong. Logically speaking, in addition to bank deposits and financial management,The whereabouts of some of my money and my family's daily consumption money are all in this account book, but no matter how I look at it, nothing is right. Some consumption is clearly not recorded, but is recorded.

Later, my father took the initiative to confess that he couldn’t help but buy a pack of cigarettes.

Later, my mother changed her strategy and the whole family kept accounts. Everyone recorded their monthly consumption expenditure in their own account books. Whenever there was a transaction or consumption at home, my mother would shout, "Book it," and everyone would record the transaction in their own books. This is the decentralized accounting model, where everyone is the center and everyone has a ledger.

The previous accounting model for dad was centralized accounting. If dad wanted to do something alone, it would be difficult for anyone to see it. The decentralized accounting model has solved the problem of centralization very well. The disadvantage of bookkeeping is that it is very difficult for dad to tamper with the books.

For example, if my father wants to take some money from the ledger and secretly buy cigarettes, the amount of money is limited, and if he wants to take the money, he has to change the ledger, but he only tampered with his own ledger. No, he had to change the accounts of three people including himself. And this is undoubtedly more difficult than reaching the sky.

So, many times my father had the idea of ​​smoking, but he had no choice but to give up the idea due to the current situation.

Are blockchain and Bitcoin the same thing?

In fact, blockchain and Bitcoin are not the same thing. It is just the underlying technology of Bitcoin. Bitcoin is the first digital currency applied by blockchain.

In 2008, Satoshi Nakamoto first proposed the concept of blockchain. In the following years, it became a core component of the electronic currency Bitcoin, serving as a public account book for all transactions. Blockchain was first applied to Bitcoin.

The origin of blockchain is to solve the problem of trust, and one of the most successful applications of blockchain is digital currency. Bitcoin is arguably the most successful application of blockchain so far.

What are the applications of blockchain?

The application of blockchain is actually very wide. In addition to digital currency, the future applications of Bitcoin are still very extensive. Blockchain technology has been widely used in different industries. Such as product traceability, copyright protection and transactions, payment and settlement, Internet of Things, digital marketing, medical care, etc., promoting different industries to quickly enter the "blockchain+" era.

1. Payment and clearing: Blockchain can abandon the role of transit banks, realize point-to-point payment, reduce transit fees, and accelerate fund utilization.

2. Product traceability: For example, if we buy a piece of clothing on a certain store, we can see the past and present life of this piece of clothing.

3. Securities trading: Traditional securities trading requiresThe four major agencies coordinate their work, which is inefficient and costly. Blockchain technology can independently complete one-stop services.

4. Supply chain: Introducing blockchain technology into the supply chain system, synchronizing information within the system can control all links, better complete division of labor and collaboration, and facilitate subsequent accountability.

5. Intellectual property rights: With copyright on the chain, our photographic works, musical works, literary works, etc. will become our information, and the ownership of the information will be confirmed and become our property.

❹ A brief explanation of what “blockchain” means

Answer: 1. The connotation of blockchain

Blockchain is distributed data New application models of computer technologies such as storage, point-to-point transmission, consensus mechanisms, and encryption algorithms.

2. Characteristics

1. Decentralization.

Blockchain technology does not rely on additional third-party management agencies or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, through distributed accounting and storage, each node realizes information self- Validate, deliver and manage.

2. Openness.

The foundation of blockchain technology is open source. In addition to the private information of the parties to the transaction being encrypted, the blockchain data is open to everyone. Anyone can query the blockchain data through the public interface. and develop related applications, so the entire system information is highly transparent.

3. Independence.

Based on consensus specifications and protocols, the entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without any human intervention.

4. Security.

As long as you cannot control 51% of all data nodes, you cannot arbitrarily manipulate and modify network data. This makes the blockchain itself relatively safe and avoids subjective and artificial data changes.

5. Anonymity.

Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and information transfer can be done anonymously.

❺ What is blockchain technology? What exactly is blockchain?

In a narrow sense, blockchain is a Time sequence combines data blocks into a chained data structure in a sequential manner, and is cryptographically guaranteed to be a distributed ledger that cannot be tampered with or forged.

Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, and uses cryptography to ensure data transmission and access. It is a new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data securely.

[Infrastructure]

Generally speaking, the blockchain systemThe system consists of data layer, network layer, consensus layer, incentive layer, contract layer and application layer. Among them, the data layer encapsulates the underlying data blocks and related basic data and basic algorithms such as data encryption and timestamps; the network layer includes distributed networking mechanisms, data dissemination mechanisms, and data verification mechanisms; the consensus layer mainly encapsulates network nodes Various consensus algorithms; the incentive layer integrates economic factors into the blockchain technology system, mainly including the issuance mechanism and distribution mechanism of economic incentives; the contract layer mainly encapsulates various scripts, algorithms and smart contracts, and is the core of the blockchain The basis of programmable features; the application layer encapsulates various application scenarios and cases of the blockchain. In this model, the chain block structure based on timestamps, the consensus mechanism of distributed nodes, economic incentives based on consensus computing power, and flexible programmable smart contracts are the most representative innovations of blockchain technology.

Extended information:

[Blockchain core technology]

Blockchain mainly solves the trust and security issues of transactions, so it addresses this issue Four technological innovations:

1. Distributed ledger means that transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, so they all Can participate in supervising the legality of transactions and can also jointly testify for them.

The uniqueness of blockchain's distributed storage is mainly reflected in two aspects: First, each node of the blockchain stores complete data according to the block chain structure. Traditional distributed storage generally stores The data is divided into multiple parts for storage according to certain rules. Second, the storage of each node in the blockchain is independent and has equal status, relying on the consensus mechanism to ensure the consistency of storage, while traditional distributed storage generally synchronizes data to other backup nodes through the central node.

No node can record ledger data independently, thus avoiding the possibility of a single bookkeeper being controlled or bribed to record false accounts. Also because there are enough accounting nodes, theoretically speaking, the accounts will not be lost unless all nodes are destroyed, thereby ensuring the security of the accounting data.

2. Asymmetric encryption and authorization technology. Transaction information stored on the blockchain is public, but account identity information is highly encrypted and can only be accessed with authorization from the data owner. , thus ensuring data security and personal privacy.

3. The consensus mechanism is how all accounting nodes reach a consensus to determine the validity of a record. This is both a means of identification and a means of preventing tampering. Blockchain proposes four different consensus mechanisms, which are suitable for different application scenarios and strike a balance between efficiency and security.

The consensus mechanism of the blockchain has the characteristics of "the minority obeys the majority" and "everyone is equal". "The minority obeys the majority" does not entirely refer to the number of nodes, but can also be the computing power and the number of shares. Or other characteristic quantities that the computer can compare. "Everyone is equal" means that when nodes meet the conditions, all nodes have the right to propose consensus results first.The result is directly recognized by other nodes and may eventually become the final consensus result.

4. Smart contracts. Smart contracts are based on these trustworthy and non-tamperable data and can automatically execute some predefined rules and terms. Take insurance as an example. If everyone's information (including medical information and risk occurrence information) is true and trustworthy, it will be easy to automate claims settlement in some standardized insurance products.

In the daily business of insurance companies, although transactions are not as frequent as those in the banking and securities industries, the reliance on trusted data continues unabated. Therefore, the author believes that using blockchain technology from the perspective of data management can effectively help insurance companies improve their risk management capabilities. Specifically speaking, it is mainly divided into risk management of policyholders and risk supervision of insurance companies.

Blockchain-Network

❻ Confidential chip mobile phone, is blockchain mobile phone a real technology or a hot topic?

It has been popular for four times so far Blockchain has become a hot topic in the past few months. From capital enthusiasm to self-media, now hardware manufacturers are also planning to get a share of the pie.

As of April 12, the Lenovo blockchain mobile phone S5 has been on sale for about 20 days. This thousand-yuan machine mainly applies "blockchain" protection technology to ensure payment security. In addition to Lenovo S5, Candy S11 and Changhong R8 Kirin are also labeled as blockchain phones and claim to have blockchain wallet, mobile mining and other functions.

According to many technicians and industry insiders in the blockchain industry, the above-mentioned blockchain concept mobile phone does not clearly state what specific blockchain technology is used, and the so-called encryption function is unclear. Its technology is also used in ordinary mobile phones. And because the computing power of mobile phones is completely difficult to match that of mining machines, "mobile mining" is not realistic.

But it is not unfeasible to apply blockchain to fields such as mobile phones and other smart hardware. "If it is clear how to integrate the blockchain into the hardware, how many nodes there are, and what kind of consensus mechanism and encryption methods are used, it will make the public more convinced." Cao Yin said.

Zhao Yongliang, deputy director of the Shandong Blockchain Application Technology Research Institute, analyzed that after the development of smartphones in recent years, they have encountered a bottleneck. For some non-leading traditional manufacturers, there is no new growth. And innovation points, "From this aspect, blockchain mobile phones are more like a gimmick."

❼ What is blockchain technology? Popular explanation of what blockchain is.

Blockchain has been at the forefront since the end of October.

What is blockchain technology

Although blockchain has been around for more than ten years, many people still don’t know much about this technology.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. From an application perspective, blockchain is a distributed ledger.

So, why is the blockchain called the blockchain?

Because the blockchain itself is a series of linked blocks, these blocks are filled with transaction records. The blocks are much like the records of a database. Every time data is written, it is Create a block. With the expansion of information exchange, one block continues with another, and the result is called a blockchain.

What are the characteristics of blockchain technology?

Simply put, blockchain has the characteristics of decentralization, openness, non-tampering, and anonymity.

1. Decentralization:

In the blockchain system, there is no center.

In the blockchain model, it is distributed accounting and storage. Each node self-verifies, transmits, and manages information. Each node is the center, which is decentralization.

2. Openness:

The blockchain system has the characteristics of openness. The data is open and anyone can query the blockchain data and data through the public interface. Develop related applications.

3. Information cannot be tampered with:

In the blockchain system, once the data is written, the tampering cannot be undone unless 51% of all data nodes are controlled. Forge a record that does not exist. Therefore, blockchain technology has a certain degree of security.

4. Privacy and anonymity:

The cryptography technology in the blockchain can effectively achieve identity concealment.

The identity information of each node does not need to be disclosed or verified, and information transfer can be done anonymously. It can only be accessed with the authorization of the data owner, thus ensuring data security and personal privacy.

Xiao Li lent 10,000 yuan to Xiao Wang. Xiao Li found two people in common and Xiao Bai to prove it. This accounting model is a centralized accounting model, and Xiaobai is the center.

However, a year later, when Xiao Li wanted to get the money back, Xiao Wang Shikou denied that he had lent him the money. It turned out that Xiao Wang introduced Xiao Bai’s girlfriend to his company. a job.

This is the disadvantage of centralized accounting.

Xiao Li learned a lesson and gained wisdom. In the future, when someone asked him to borrow money, he said on WeChat in the village that I would lend so-and-so how much money. In this way, everyone in the village knew that Xiao Li How much money did Li lend to whom?

In this way, when Xiao Li asks for debt again in the future, the other party will not deny the issue, because a consensus mechanism has been established in the minds of the people in the village: How much did you borrow from Xiao Li? .

This is the advantage of decentralized accounting.

Because after all, there are many people to testify about this transaction. If it seems to be a fraud, it will be unless more than half of the people in the village are bribed. However, the price is very high.

In fact, these characteristics of the blockchain are all to solve the problem of "trust". The rich application scenarios of the blockchain are also based on the blockchain's ability to solve the problem of information asymmetry. At the same time, Blockchain also helps achieve collaborative trust and consistent action among multiple entities.

What are the applications of blockchain?

In addition to digital currency, there are many application scenarios of blockchain.

1. Medical field

Blockchain helps realize smart medical care, such as going to the hospital to see a doctor. Through the blockchain model, the patient’s medical status, cases, treatment status, etc. are all Clearly visible, saving a lot of medical resources.

2. Copyright field

Blockchain can prove the authenticity and uniqueness of the copyright of works, from the birth to the transfer of audio, video, pictures, text and other works. Can be tracked and recorded, and form tamper-proof information.

3. Logistics field

After applying blockchain in the logistics field, goods can be traced from production to consumption.

4. Food safety

Is blockchain used for food safety? Through blockchain traceability, one can easily trace the past and present life of their food.

5. Securities trading

For example, traditional securities trading requires the coordination of multiple institutions to complete, while the blockchain system can independently complete one-stop transactions. This service can make securities trading simpler and faster.

However, many people have big misunderstandings about blockchain. The biggest misunderstanding is: blockchain = Bitcoin

In fact, blockchain and Bitcoin is not the same thing. Blockchain is the underlying technology of Bitcoin, and Bitcoin is the first application of blockchain.