区块链连接起来的是,区块链接啥意思

区块链是一种分布式账本技术，它由一系列的区块组成，每个区块都包含了一些信息，并且用一种数学方式与上一个区块相关联，形成一个安全的链条。它可以被用于记录和存储数据，以及进行资金流转。本文将着重介绍区块链技术连接起来的三个关键词：去中心化，共识机制和加密算法。

去中心化：去中心化是区块链技术的核心特性，它是指没有中心化的组织结构，也就是没有一个中心节点来控制整个网络。在区块链网络中，每个节点都是自治的，没有一个节点可以控制其他节点，也没有中心服务器来处理所有的交易。这种去中心化的结构使得区块链网络能够更加安全，因为攻击者无法控制整个网络，即使攻击者成功攻击了一个节点，也无法控制整个网络。

共识机制：共识机制是区块链技术的另一个核心特性，它是指网络中的节点可以通过一种特定的算法来协商一致，达成共识。这种算法可以是工作量证明（Proof of Work），这是比特币网络中使用的算法；也可以是权益证明（Proof of Stake），这是以太坊网络中使用的算法。这种共识机制使得网络中的节点可以达成一致，从而确保网络的安全性，同时也可以避免网络中的节点发生分歧。

加密算法：加密算法是区块链技术中的另一个重要特性，它是指网络中使用的加密技术，可以保护网络中的数据不被篡改。常用的加密算法有SHA-256，RSA，AES等。这些算法可以用来保护网络中的数据，并且可以防止攻击者篡改网络中的数据。同时，这些算法也可以用来确保网络中的节点之间的信息安全，从而确保网络的安全性。

以上就是区块链技术连接起来的三个关键词：去中心化，共识机制和加密算法的介绍。它们是区块链技术的核心特性，可以为区块链网络提供安全性，从而保护网络中的数据不被篡改。

Ⅰ What is blockchain

What is blockchain? What changes will it bring to your future life?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of Bitcoin, it is a series of cryptographic methods related to each other. Each data block generated contains a batch of Bitcoin network transaction information, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

In fact, the original English version of the Bitcoin white paper does not appear in the word blockchain, but uses chain of blocks. In the earliest Chinese translation of the Bitcoin white paper, chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.

The Cyberspace Administration of China issued the "Blockchain Information Service Management Regulations" on January 10, 2019, which will come into effect on February 15, 2019.

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-transformable. Fake distributed ledger.

So in conclusion, this is undoubtedly a new technology that changes life. In the future, the production activities of the entire society will be carried out with blockchain as the underlying logic. Many things We all have it at our fingertips, and with the integration of artificial intelligence and big data, we can easily handle things that may seem cumbersome now, such as some securities market transactions and intelligent matching of financial management activities.

To put it simply, blockchain is a network computing center that integrates people, property, machines, and goods, and packages them into a whole; putting it on an infrastructure to run.

II What is Blockchain

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is an important concept of Bitcoin.

It is essentially a decentralized database, and as the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each block of data contains a The information of batches of Bitcoin network transactions is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

(2) What is the blockchain linked to? Extended reading

Characteristics of the blockchain:

1. Certificate storage

The "non-tamperable" feature of blockchain provides a solution to the problem of "certificate storage" in economic and social development. As long as it can be ensuredIf the information and data on the chain are authentic, then the blockchain can solve the problem of "storage" and "certification" of information.

For example, in the field of copyright, blockchain can be used to store electronic evidence, which can ensure that it is not tampered with, and can link original platforms, copyright bureaus, judicial agencies and other parties through distributed ledgers, which can The banquet greatly improves the efficiency of Yinxin Bank in handling infringements.

2. Sharing

The "distributed" characteristics of the blockchain can break through the "data barriers" between departments and achieve information and data sharing. Different from centralized data storage, the information on the blockchain will be distributed to each node through point-to-point broadcasting, and all information can be "truthfully recorded" through "whole network witness".

ⅢWhat is blockchain

Blockchain has been relatively popular recently. When people talk about blockchain, they will associate it with Bitcoin, but blockchain is blockchain. Bitcoin is Bitcoin, and the two are completely different. Although many people have heard of blockchain, they do not understand what blockchain is. What does blockchain mean?

Blockchain refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness. Many people still don’t understand decentralization. Decentralization means that there is no central ledger in the blockchain. Everyone has the opportunity to participate in accounting. Everyone is the center, and everyone in the system has a ledger. When it comes to blockchain, everyone will mention Bitcoin, because blockchain is the underlying technology of Bitcoin and is mainly used in Bitcoin. Blockchain is like a large database ledger that records all transaction records. , and the updated accounting content will be sent to all system class users.

What is blockchain technology

In layman’s terms, blockchain technology is a way for all people to participate in accounting. All systems have a corresponding database. If the database is compared to an account book, then the person who keeps the accounts is very important. These databases currently keep their own accounts. For example, Alibaba is responsible for the Taobao account book, and WeChat is responsible for the accounting. The ledger is kept by Tencent. But in the blockchain system, everyone has the opportunity to participate in accounting. The system will select the person with the best and fastest accounting, record his content on the ledger, and send the content of the ledger to everyone in the system. Personal backup allows everyone to have the same ledger, ensuring that the accounting process is transparent. There is no central ledger, which greatly improves security. In the past, it was difficult for two parties who did not trust each other to conduct transactions. For the security of transactions, a third-party platform was needed, and blockchain technology solved the credit problem of user transactions. People can complete transactions without a third-party intermediary. Bitcoin The underlying technology of currency transactions uses blockchain technology, so many people associate Bitcoin with blockchain. It is precisely because Bitcoin has been very stable for many years that people pay attention to its underlying technology. People abstract the underlying technology of Bitcoin and call it blockchain technology.

IV What is blockchain and how to simply understand blockchain technology

What is blockchain

Blockchain is an encryption algorithm through point-to-point transmission. A new technology, there are countless points in the blockchain, each point represents a user, and transactions occur between points, the transaction records will be directly uploaded to the block, and the data in the block will be linked in chronological order. It starts with blockchain.

1. Blockchain is also called a distributed ledger. The ledger records the transaction records of all nodes. Each node needs to maintain the development of the blockchain, supervise whether the transactions are legal, and can also work together to Transaction testimony.

2. Encryption technology. The transaction information in the blockchain is public, but personal information has been encrypted. There is no need to worry about the leakage of personal information. Only with the individual's authorization can the other party Personal information is queried and the security of personal information is guaranteed.

3. Consensus mechanism. Every node in the blockchain trusts each other. Every user can trade with confidence because the data cannot be tampered with and every transaction must be legal and will not There is a possibility of fraud.

4. In scenarios where smart contracts and blockchain technology are applied, intelligent matching can be used. For example, insurance claims can be automatically settled.

How to simply understand blockchain technology

Blockchain technology can be understood in this way. Xiaohei and Xiaobai are both nodes in the blockchain. Borrowing 1,000 yuan is a transaction, and the data will be stored in the block. At this time, Xiaobai broadcasts to everyone that Xiaohei borrowed 1,000 yuan from him, and Xiaohei also broadcasts that he borrowed money from Xiaobai. He borrowed 1,000 yuan from Xiaobai. Everyone heard the news. On the repayment day, Xiaohei said that he had not borrowed 1,000 yuan from Xiaobai. At this time, everyone came out to testify to Xiaobai that Xiaohei had indeed borrowed money. 1,000 yuan.

In the above example, Xiao Hei and Xiao Bai are equivalent to the two nodes of the blockchain. Borrowing money is a transaction. As long as the transaction is made, transaction data will be generated and uploaded directly to the block. The data in the block is public. Not only can you see it, but everyone in the blockchain can see it. This ensures that Xiaohei will not breach the contract and say that he did not borrow the money. Everyone in the block will supervise Xiaohei. To repay the money, it ensures the legality of the transaction and mutual trust between each node.

IV What is blockchain

1. Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each The data block contains information about a batch of Bitcoin network transactions and is used to verify the validity of the information (anti-counterfeiting).) and generate the next block.
2. "Blockchain" It can not only record every transaction, but can also be programmed to record almost everything of value to humans: birth and death certificates, marriage certificates, ownership deeds, degree certificates, financial accounts , medical history, insurance claims, ballots, food sources, and anything else that can be represented by a code. Each block is like a hard disk that saves all the above information and then encrypts it through cryptography technology. The saved information cannot be tampered with.

VI What exactly is blockchain? Which blockchains have physical applications

What is blockchain?

Official definition: Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission consensus mechanism encryption algorithm, etc. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.

Vernacular understanding: A block is to package all the data generated within a time period in chronological order. Generally, the length of a block is 10 minutes, which means that within 10 minutes, all the data on the Internet will The data is packed into a complete package, and this complete data package is called a block. The blockchain links these data packages in order to form a structure, and cryptographically ensures that it cannot be tampered with or forged to form a distribution. ledger, this is the blockchain.

It seems that everyone has a preliminary knowledge and understanding of the blockchain. So whether the blockchain has any practical application in daily life, the answer is yes, the current practical application There are mainly the following aspects. Of course, I may not know some of them. Friends are welcome to leave messages to add.

Financial Industry

Blockchain should be used the most in the financial industry.

For example, in May 2017, OMG (Omise Coin) announced that it would cooperate with Alipay to launch an electronic wallet, integrating the "Alipay" payment solution into its own payment service suite to help local electronics in Thailand. Business merchants accept online payment transactions from Chinese tourists.

Another example is PPT, which is a financial transaction system for bills based on blockchain.

Gaming

The gambling industry entered the blockchain probably last year. Why does gambling favor blockchain? Because blockchain provides a relatively fair betting system. Why? It is relatively fair. As can be seen from the previous introduction, the blockchain cannot be tampered with or forged.

For example, WICC (WikiChain) can realize rich application scenarios such as asset issuance, betting applications, copyright traceability, mutual insurance, decentralized exchanges, and cross-border settlement.

For example, the STX (King of Fighters Token) stox application is designed to provide the full functionality of a prediction market application without the need for any central server. Prediction markets require things like event planning, market production, providing information and analysis to traders, reporting event results, and of course collecting and payingfunctions such as payment.

I believe that if the current lottery industry is built on the blockchain, people will become more and more enthusiastic about buying, because there are too many insider tips that make people give up.

Internet of Things

The Internet of Things still has many applications on the blockchain, because the traceability and immediacy of blocks are very suitable for this industry.

For example, DATA is the concept of the Internet of Things. It is a decentralized p2p network. Data sources can connect to any node in the entire network, then publish data, and the network will immediately send it to subscribers. Horizontal scalability is achieved through sharding pattern. This timeliness and accuracy are very important in IoT applications.

Game industry

For example, GTC (G coin) is a decentralized digital asset based on Ethereum erc20 issued by Game Global. G coin is committed to becoming a universal number in the global game industry. Monetary standards.

For example, MANA is a distributed shared virtual platform. On this platform, users can browse and discover content and interact with other people and entities. Users can also claim ownership of virtual territories through a blockchain-based land ledger. The territory is demarcated by rectangular coordinates (x, y), and its owner can decide the content published on the territory, including static 3D scenes to interactive systems such as games.

There are many other industries. The emperor did not list them one by one, but listed a few representative ones. What is the purpose? It shows that the blockchain is definitely not just a currency transaction, it is a real implementation project, and it is a product of the changes of the times with real practical uses.

The development of human society is actually like the blockchain, it is irreversible and unstoppable. As far as I feel, the blockchain will enter thousands of households sooner or later. Regardless of whether it is bull or bear, hold it in your hands. Value coins and Flush have started quoting digital currencies, which shows that society is accepting it step by step. The power of social development cannot be blocked by any country or person.

VII What is Blockchain

Blockchain is a term in the field of information technology. In essence, it is a shared database and the data or information stored in it , with characteristics such as “unforgeable”, “leaving traces throughout the entire process”, “traceable”, “open and transparent” and “collectively maintained”.

On January 10, 2019, the National Internet Information Reform Office issued the "Blockchain Information Service Management Regulations". On December 2, 2019, the word was selected into the top ten buzzwords of 2019 by "Yi Wen Qi Zi".

ⅧWhat does blockchain mean?

In the narrow sense, blockchain is a distributed system ledger that is difficult to tamper with and difficult to forge. It consists of db blocks in chronological order. The chain franchise algorithm is designed and guaranteed by cryptographic algorithms. In a broad sense, blockchain applications are the use of data asset structures to verify and store information, the use of consensus algorithms of distributed system nodes to generate and refresh data, and the use of cryptographic algorithms.To ensure the security of data transmission and browsing, use intelligent contracts composed of automated scripts, program writing and new distributed infrastructure and calculation methods to use data.

What does blockchain mean?

Blockchain technology is actually equivalent to a decentralized database system, consisting of a long list of db blocks. Each DB block contains a Bitcoin transaction information, which is used to verify the validity of its information and form the next block.

What are the application scenarios of blockchain technology?

The main application areas of blockchain technology include: virtual currency, commodity transaction clearing, data government affairs, verification and anti-counterfeiting label network services and other industries. Ou Sen's block chain is a database technology that links DB blocks in an orderly manner. It is responsible for recording and encrypting file data to ensure that the data cannot be modified or falsified.

Blockchain technology can essentially be a distributed system that is participated in, maintained together, and continuously grown, also known as a distributed shared resource ledger. Each page in the shared resource ledger is a block, and each block is full of transaction details. The anonymity, decentralization, openness, transparency and difficulty in tampering of blockchain have made it favored by enterprises and has been widely used.