阿里区块链怎么赚钱,阿里区块链app叫什么

阿里区块链怎么赚钱？这是近几年风靡全球的热门话题，也是许多投资者关心的话题。本文将介绍三个与阿里区块链相关的关键词：区块链资产管理、区块链应用和阿里区块链app。

区块链资产管理是指通过区块链技术和分布式账本技术来实现资产管理的一种新型服务。它可以将资产的数据、流程和资金进行有效管理，形成一个安全、可信、可追溯的管理系统，实现资产的安全存储和可控分发。阿里区块链资产管理平台可以帮助企业实现资产的安全管理，解决传统资产管理中的安全性、可信性和可追溯性问题，提高企业的经营效率。

区块链应用是指利用区块链技术来开发的应用程序。目前，区块链应用已经遍及各个领域，包括金融、电子商务、物流、政府管理等。阿里巴巴是全球最大的B2B电子商务平台，也是一家领先的区块链应用企业。它的主要产品包括区块链贸易金融、区块链物流追踪、区块链支付等，可以有效提高企业的经营效率，提升客户体验。

阿里区块链app叫什么？这是一个很常见的问题。阿里区块链app叫“阿里区块链”，它是阿里巴巴集团推出的一款全新的区块链应用。它可以帮助用户更好地理解区块链技术，掌握区块链的最新动态，更快速地获取区块链技术的市场信息，实现投资收益的最大化。此外，它还可以帮助用户发现最新的区块链应用，更好地参与区块链行业的发展。

以上就是关于阿里区块链怎么赚钱的三个相关关键词：区块链资产管理、区块链应用和阿里区块链app叫什么的介绍。阿里区块链技术的发展为投资者提供了一个安全、可信、可追溯的投资环境，让投资者可以更轻松地获取投资收益。

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Ⅰ How to interpret blockchain in the simplest way

Everyone hears the word blockchain every day recently, so what is blockchain? Explanations such as "distributed, difficult to tamper, and consistent storage" are too technical and dry. Let me give you some popular science here: Blockchain is mainly designed to solve the trust problem between individuals who do not trust each other.

To give a popular example: It is said that Lao Li and Lao Wang live in the same village. Lao Li is a little short of money recently and wants to borrow some money from Lao Wang. As for Lao Wang, he was worried about what would happen if he defaulted on the loan after borrowing money from Lao Li, so he called in the "highly respected" village chief. But thinking about it, the village chief couldn't be trusted either. The village chief had even stolen other people's sweet potatoes in the past! what to do?

The blockchain method is: After Lao Wang borrowed 1,000 yuan from Lao Li, he then used a loudspeaker to shout in the village, "I, Lao Wang, borrowed 1,000 yuan from Lao Li today. Everyone Record it quickly." So everyone in the village recorded it in their own account books and kept it carefully. This is good, Lao Li can't rely on him anymore. Even if there are dishonest people in the village, there are still many good people. Lao Li can't find everyone in the village to secretly erase his loan records. In this way, the blockchain solved the trust problem of borrowing money between Lao Wang and Lao Li, who did not trust each other.

Before the emergence of blockchain, how did we solve the problem of trust between individuals who did not trust each other? It's simple, just find a "witness" who is "highly respected" and trusted by both parties, such as the village chief in the story, such as Alipay between the buyer and seller, such as the notary office, etc. However, it is possible that such "witnesses" may not always be honest, so the blockchain simply allows everyone to act as a witness.

Lao Wang is relieved, but Lao Li has a headache! Lao Li has to wait until everyone in the village has recorded the money before he can get the money lent to him. There is no uncle or aunt in the family who is slower. Therefore, there is still a certain distance between blockchain and application, and efficiency issues need to be significantly improved.

Recall how you usually trade with others: you can choose a beautiful dress in a physical store, confirm that the other party’s clothes are of good quality, and the other party confirms that your money is real money. , then we will pay and receive the goods face to face.

What if we are thousands of miles apart and neither know nor trust each other but still want to trade? Then there needs to be a third party that we all trust, which is the so-called consensus mechanism. For example: you can complete the transaction through a third-party witness guarantee on Taobao. The money is first given to Alipay - Alipay collects the payment and lets the seller deliver the goods - the seller delivers the goods - you confirm receipt - Alipay then gives the money to the seller.

However, what if this centralized organization does evil, and Dad Ma tears up the account books and refuses to admit that you gave the money, or joins forces with the seller to defraud you of money?

Or the government lent you 1 million and finally paid it back by issuing extra currency.Your money has shrunk from 1 million to 10,000, and you have to bear the loss of inflation. What should you do?

Is there a third party that is not controlled by any government or organization, can complete arbitration in an open and transparent manner, has records that will not be tampered with, and has no risk of running away?

Don’t worry, our protagonist’s blockchain technology solves this problem - the transactions between you can be witnessed by everyone in this blockchain system, and it will be recorded in everyone’s small ledger. Your deal. If B denies receiving money from A, or if A says that he borrowed 300 yuan, passers-by A, B, B, and D will question him. How exactly is it done?

1) The system issues a small ledger to everyone, so that everyone has the right to keep accounts. We call it distributed accounting.

2) In order to encourage everyone to help others keep accounts, the system code is set to reward tokens such as Bitcoin to the keepers. In order to prevent a group of people from being blocked in keeping accounts, the tokens are also set to There are only a limited number of A, B, C and D who need to be calculated through the mechanism specified by the system. Only the fastest and best calculation can obtain the right to keep accounts. After recording, it is broadcast to everyone through the system. Everyone copies the same ledger. This is obtained through calculation. The reward process is called mining, and passers-by A, B, C and D who keep accounts are the miners.

3) One day, A, who originally recorded the transaction, Game Over, but the ledger still exists in other people's ledgers. Neither A nor B can deny it. We have written in code how to arbitrate and distribute, without the need for banks, governments, enterprises and other centralized organizations to serve as third-party witnesses (decentralization), and the direct point-to-point (P2P) transaction method is called decentralization.

4) The system packages multiple transactions into blocks and links them in chronological order to become the final ledger that everyone has. This is the blockchain technology

In fact, the block chain The simple understanding of blockchain as a ledger is only the simplest interpretation. If each of its characteristics is separated, it can be applied in many fields.

Now the traditional financial industry, securities firms, and investment institutions are rushing to enter the Internet of Things, games, storage, copyright, anti-counterfeiting, credit reporting, payment, prediction markets (gambling, etc.), communities and many other fields. The exploration and application of blockchain has already begun.

The Internet allows everything to be connected. Can blockchain make everything connected trustworthy?

Let me explain the blockchain using the natural stones of heaven and earth:

All science, philosophy, morality... heaven and earth are included. Every thing and every culture is related to the Taoism of heaven and earth.

Blockchain naturally cannot escape the fate of heaven and earth: that is, smooth, random, infinite, and impermanent.

It is this strange stone, and the overall data movement on its surface. First, the whole is intangible. Second, the lines and points adhere to a pattern: the path of impermanence. That is to say, every line and every point they pursue is not a closed goal or a limited purpose. I can understand it better when I say this: when a painter paints a chicken, it has a purpose and an ending, while strange rocks, when created by nature, have no ending. Therefore, the phase is not closed, and the line and point data are not terminated. The technology of block connection is this way of destiny. Impermanence is invisible and has no end. (No centralization means formlessness, no closed form, no closed structure, no closed mind... just like "stone" to do things).

Confucius Lingshi Museum in Qufu, Shandong

Hello everyone, I am Pippi. I will use a few life examples to explain to you what blockchain is?

A decentralized, tamper-proof, distributed storage data block linking system that uses encrypted information as the link address is called blockchain

This thing is originally There are many high-tech composite products that cannot be simplified. No matter how simple it is, it takes a long paragraph, and it may not be clear.

The strict definition of blockchain refers to the design based on cryptography technology. Consensus mechanism, a distributed database technology in which multiple nodes in a peer-to-peer network jointly maintain a continuously growing, chained list ledger constructed of timestamps and ordered record data blocks. This technical solution allows any number of nodes participating in the system to calculate and record all information exchange data in the system for a period of time into a data block (block) through cryptographic algorithms, and generate the fingerprint of the data block for linking ( chain) and check the next data block, all participating nodes in the system jointly determine whether the record is true.

Blockchain is a general term for technical solutions similar to NoSQL (non-relational database). It is not a specific technology. Blockchain technology can be implemented through many programming languages ​​and architectures. . There are also many ways to implement blockchain. Common ones currently include POW (Proof of Work), POS (Proof of Stake), DPOS (Delegate Proof of Stake), etc.

The concept of blockchain was first proposed in the paper "Bitcoin: A Peer-to-Peer Electronic Cash System" by the author who calls himself Satoshi Nakamoto (Satoshi Nakamoto) individual (or group). Therefore, Bitcoin can be regarded as the first financial payment in the blockchain.applications in the field.

[Popular explanation]

No matter how big the system or how small the website, there is usually a database behind it. So who will maintain this database? Under normal circumstances, whoever is responsible for operating the network or system will maintain it. If it is a WeChat database, it must be maintained by Tencent's team, and Taobao's database must be maintained by Alibaba's team. Everyone must think that this approach is natural, but this is not the case with blockchain technology.

If we imagine the database as a ledger: Alipay, for example, is a typical ledger, and any change in data is an accounting type. We can think of database maintenance as a very simple accounting method. The same is true in the world of blockchain. Everyone in the blockchain system has the opportunity to participate in accounting. The system will select within a period of time, maybe within ten seconds, or maybe ten minutes, to select the person with the fastest and best accounting during this period. This person will do the accounting, and he will combine the changes in the database during this period with Changes in the ledger are recorded in a block. We can imagine this block as a page of paper. After confirming that the record is correct, the system will link (chain) the data fingerprint of the past ledger to this paper, and then This piece of paper is sent to everyone else in the entire system. Then the cycle starts over and the system looks for the next person who can do the accounting quickly and well, and everyone else in the system gets a copy of the entire ledger. This also means that everyone in this system has exactly the same ledger. This technology is called blockchain technology, also known as distributed ledger technology.

Since everyone (computer) has exactly the same ledger, and everyone (computer) has exactly the same rights, there will be no problem due to a single person (computer) losing contact or going down. The entire system collapses. Since there are exactly the same ledgers, it means that all data is open and transparent, and everyone can see the digital changes in each account. Its very interesting feature is that the data in it cannot be tampered with. Because the system will automatically compare, it will consider the account books with the largest number of the same number as the real account books, and the small number of account books with different numbers as others are false account books. In this case, it makes no sense for anyone to tamper with their own ledger, because unless you can tamper with most of the nodes in the entire system. If the entire system has only five or ten nodes, it may be easy to do, but if there are tens of thousands or even hundreds of thousands of nodes, and they are distributed in any corner of the Internet, unless someone can control most of the computers in the world , otherwise it would be unlikely to tamper with such a large blockchain.

[Elements]

Combined with the definition of blockchain, we believe that it must have the following four elements to be called a public blockchain technology. If it only has the first three points elements, which we will consider privateBlockchain technology (private chain).

1. Point-to-point peer-to-peer network (peer-to-peer power, physical point-to-point connection)

2. Verifiable data structure (verifiable PKC system, non-tamperable database)

3. Distributed consensus mechanism (solve the Byzantine generals problem and double payment)

4. Nash equilibrium game design (cooperation is an evolutionarily stable strategy)
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[Characteristics]

Combined with the definition of blockchain, blockchain will realize four main characteristics: decentralized, trustless, Collectively maintained (Collectively maintained), reliable database (Reliable Database). And the four characteristics will lead to two other characteristics: open source (Open Source) and privacy protection (Anonymity). If a system does not possess these characteristics, it will not be considered an application based on blockchain technology.

Decentralized: The entire network has no centralized hardware or management organization. The rights and obligations between any nodes are equal, and the damage or loss of any node will not affect it. operation of the entire system. Therefore, the blockchain system can also be considered to have excellent robustness.

Trustless: Each node participating in the entire system does not need to trust each other for data exchange. The operating rules of the entire system are open and transparent, and all data contents are also public. , therefore within the rule range and time range specified by the system, nodes cannot and cannot deceive other nodes.

Collectively maintain: The data blocks in the system are jointly maintained by all nodes with maintenance functions in the entire system, and these nodes with maintenance functions can be participated by anyone.

Reliable Database: The entire system will be divided into databases so that each participating node can obtain a copy of the complete database. Unless more than 51% of the nodes in the entire system can be controlled at the same time, modifications to the database on a single node are invalid and cannot affect the data content on other nodes. Therefore, the more nodes and stronger computing power participating in the system, the higher the data security in the system.

Open Source: Since the operating rules of the entire system must be open and transparent, for the program, the entire system must be open source.

Privacy protection(Anonymity): Since there is no need for mutual trust between nodes, there is no need to disclose the identity between nodes, and the privacy of each participating node in the system is protected.

[One of the meanings of blockchain: solving the Byzantine Generals Problem]

The core problem solved by blockchain is not “digital currency”, but the problem of information asymmetry and inconsistency. Under a certain environment, how to establish a "trust" ecological system that satisfies the occurrence and development of economic activities. This problem is called the "Byzantine Generals Problem", also known as "Byzantine Fault Tolerance" or the "Two Armies Problem". This is a difficult problem faced when information machines interact in a distributed system, that is, any point in the entire network When nodes cannot trust the other party they are communicating with, how can they create a consensus basis for secure information exchange without worrying about data being tampered with. Blockchain uses an algorithmic proof mechanism to ensure the security of the entire network. With it, all nodes in the entire system can automatically and securely exchange data in a trustless environment. For more introduction, please see "Bitcoin and the Byzantine Generals Problem".

[The second meaning of blockchain: realizing cross-border value transfer]

At the beginning of the birth of the Internet, the earliest core problem to be solved was information production and transmission. We can transfer information through the Internet It can be quickly generated and copied to every corner of the world with a network, but it still cannot solve the value transfer and credit transfer. The so-called value transfer here refers to a method that everyone in the network can recognize and confirm, accurately transferring a certain part of the value from a certain address to another address, and it must be ensured that when the value is transferred, the original address is reduced The transferred portion, while the new address increases the value transferred. The value mentioned here can be a monetary asset, or some kind of physical asset or virtual asset (including securities, financial derivatives, etc.). The results of this operation must be recognized by all participating parties, and the results cannot be manipulated by any one party.

There are also various financial systems in the current Internet, and there are also many payment systems provided by government banks or third parties, but they still rely on centralized solutions. The so-called centralized solution is to put all value transfer calculations on a central server (cluster) through the endorsement of a certain company or government credit. Although all calculations are automatically completed by programs, this centralization must be trusted. person or institution. In fact, through centralized credit endorsement, credit can only be limited to certain institutions, regions or countries. It can be seen from this that the fundamental problem that must be solved is credit. Therefore, the core issue of value transfer is transnational credit consensus.

In such a complex global system, it is difficult to establish a global credit consensus system out of thin air.The political, economic and cultural conditions are different, and it is almost impossible for the companies and governments of two countries to completely trust each other. This means that whether it is endorsed by the credit of individuals or corporate governments, even if the exchange of value between countries is It can be done, but at a huge time and economic cost. But in the long history of mankind, no matter how different the religion, politics and culture of each country are, the only thing that can reach consensus is mathematics (basic science). Therefore, it is no exaggeration to say that mathematics (algorithms) is the greatest common denominator of global civilization and the basis for the greatest consensus among human beings around the world. If we use mathematical algorithms (programs) as endorsement, all rules are based on an open and transparent mathematical algorithm (program), which can allow all people with different political and cultural backgrounds to gain consensus.

[Future Development]

The Internet will make global interactions closer and closer, accompanied by a huge trust gap. Currently, the existing mainstream database technology architecture is private and centralized. On this architecture, the problems of value transfer and mutual trust can never be solved. Therefore, blockchain technology may become the next generation database architecture. Through decentralized technology, it will be possible to complete the huge progress of mathematical (algorithm) endorsement and global mutual trust on the basis of big data.

As a specific distributed access data technology, blockchain technology uses multiple nodes participating in calculations in the network to jointly participate in the calculation and recording of data, and mutually verify the validity of their information. (anti-counterfeiting). From this point of view, blockchain technology is also a specific database technology. The Internet has just entered the era of big data, but from the current point of view, big data is still in a very basic stage. But when it enters the blockchain database stage, it will enter the big data era of real strong trust endorsement. All data here has acquired indestructible quality, and no one has the ability or need to question it.

Perhaps we are now at a major turning point - the early stages of a major transition that is almost as profound as the changes brought about by the Industrial Revolution. Not only are new technologies exponential, digital and combined, progress and changes, but more surprises may be ahead of us. In the next 24 months, the planet will grow more computing power and record more data than it has in all of history combined. In the past 24 months, this value increase may have exceeded 1,000 times. This digital data information is growing faster than Moore's Law. Blockchain technology will not only be used in the field of financial payments, but will expand to all current application areas, such as decentralized Weibo, WeChat, search, renting, and even taxi-hailing software may appear. Because blockchain will allow humans to collaborate on a large scale in a trustless manner without geographical restrictions.

Blockchain is a technology based on which many applications have been produced, includingAccording to all industry businesses related to information, Bitcoin is one of the most well-known applications. The popular explanation of blockchain is that if you buy a lipstick online, you first find the product you like and place an order with the seller. You first give the money to the intermediary platform. After the seller ships the goods and the buyer confirms receipt, the intermediary platform then transfers the money. Transfer it to the seller, because of the trust issue, both buyers and sellers rely on the intermediate platform, and the blockchain, as a decentralized distributed ledger database, focuses on removing this intermediate platform while solving the trust issue at the same time. In the blockchain, everyone has their own ledger to record everything that happens. If a seller takes money but does not deliver the goods during the transaction, this record will exist permanently and cannot be modified, and there is no need to interact with each other. To exchange information, the blockchain world will select the person's ledger that records the fastest and best quality at the same time node to copy, send and connect in series, and finally stack it up to form a block.

When everyone talks about virtual currencies, they often cannot do without the concept of blockchain. So what is the magic of blockchain?

Blockchain is an underlying technology, essentially a decentralized distributed ledger database. It sounds very high-end and out of reach, but it is actually very easy to understand.

For example, if you want to buy something on Taobao, the first thing you usually have to do is to open Taobao, find the product you want, place an order and pay the money to Taobao, which is the transaction intermediary. Taobao will pay the seller after receiving the goods and confirming receipt. This was originally just a transaction between me and the seller, but it has an additional "center", namely Taobao.

During the transaction process, this "center" has unlimited power and can even modify the bill at will. Therefore, the “center” often needs a strong backend to endorse it.

So, a man named Satoshi Nakamoto wanted to get rid of this center with infinite power. He wanted to create a decentralized system in which everyone is the center and everyone is the center. Have the authority to keep accounts. So, he created Bitcoin.

In the Bitcoin system, everyone has a small ledger to record every transaction that occurs. A transaction is only valid after being confirmed by a majority of people. If the seller doesn't deliver the goods, everyone's little ledger will record it, leaving him nowhere to escape.

At this time, you may have questions. Since it is just a public ledger, why is it called a blockchain? This involves the issue of consensus. The blockchain system is a system composed of many "centers". The entire blockchain belongs to all individuals participating in accounting. At this time, new problems arise. A system must be in order to survive in the long term. If the bookkeeper can act recklessly regardless of the cost, it may happen that he originally just bought a mobile phone, but received a Tesla instead.

So, Satoshi Nakamoto invented a consensus method called PoW. This method increases the cost of bookkeeping for bookkeepers and prevents them from doing evil easily. PoW uses cryptography to require bookkeepers to compete for computing power to obtain accounting rights. The first bookkeeper to calculate the result can obtain the accounting rights of a block packaged from several transactions. At the same time, you will receive certain tokens as rewards. This is what we commonly call "mining".

Now that the bookkeeper has recorded a block containing several transactions, the system needs to be organized and sorted. It is impossible to have countless blocks distributed in the system in an orderly manner. So it is necessary to link all blocks end to end in chronological order. At this time, the blockchain was born. The core of blockchain is technology.

II Blockchain is an interlocking computing system

Blockchain is an interlocking computing system

Blockchain The chain is an interlocking computing system. The blockchain is an interlocking distributed computing system. The blockchain is an interlocking computing system. The blockchain technology uses the "block" "Chained data structure" to verify and store data

Blockchain is an interlocking computing system 1

Blockchain is an interlocking computing system

< p> Blockchain is an interlocking distributed computing system; from an application perspective, blockchain is a distributed shared ledger and database, which is decentralized, cannot be tampered with, leaves traces throughout the process, and can be traced , collective maintenance, openness and transparency and other characteristics.

The operating environment of this article: Windows 7 system, Dell G3 computer.

Blockchain is an interlocking distributed computing system.

What is blockchain?

From a technological perspective, blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming. From an application perspective, simply put, blockchain is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency. These characteristics ensure the "honesty" and "transparency" of the blockchain and lay the foundation for creating trust in the blockchain. The rich application scenarios of blockchain are basically based on the ability of blockchain to solve the problem of information asymmetry and achieve collaborative trust and consistent action among multiple subjects.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. 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 A block of data contains a batch of BitcoinsNetwork transaction information is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

In the original English version of the Bitcoin white paper, the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper [9], 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.

As an important breakthrough for independent innovation of core technologies, the security risk of blockchain is regarded as a major shortcoming that currently restricts the healthy development of the industry. Frequent security incidents have sounded the alarm for the industry. To embrace blockchain, we need to accelerate the exploration and establishment of a security system that adapts to the blockchain technology mechanism.

Type

Public Blockchain

Public Blockchains (Public Block Chains) refer to: any individual or Any group can send transactions, and the transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. The public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of all major bitcoins series are based on the public blockchain. There is only one blockchain corresponding to this currency in the world. .

Consortium (Industry) Blockchains

Industry Blockchains (Consortium Block Chains): Multiple pre-selected nodes are designated within a certain group as bookkeepers, and each block The generation is jointly decided by all pre-selected nodes (the pre-selected nodes participate in the consensus process). Other access nodes can participate in transactions, but do not participate in the accounting process (it is essentially still managed accounting, but becomes distributed accounting, and the pre-selected nodes How much and how to decide the bookkeeper of each block becomes the main risk point of the blockchain), anyone else can make limited inquiries through the open API of the blockchain.

Private Block Chains

Private Block Chains: Only use the general ledger technology of the blockchain for accounting. It can be a company or an individual. With exclusive write access to the blockchain, this chain is not much different from other distributed storage solutions. Traditional finance is trying to experiment with private blockchains, while applications of public blockchains such as Bitcoin have been industrialized, and application products of private blockchains are still being explored.

Features

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 realizesInformation self-validation, delivery and management. Decentralization is the most prominent and essential feature of blockchain.

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

Independence. Based on consensus specifications and protocols (similar to various mathematical algorithms such as the hash algorithm used by Bitcoin), 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 the need for any human intervention.

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

Anonymity. Unless required by legal regulations, technically speaking, the identity information of each block node does not need to be disclosed or verified, and information transfer can be carried out anonymously.

The blockchain is an interlocking computing system 2

The role of the blockchain

1. Data storage in the blockchain: block chain data structure

In terms of data storage, blockchain technology uses "blockchain data structure" to verify and store data. What does the blockchain structure mean? We can think of it as an iron chain. Each link can be regarded as a block. Many links are linked together to form a blockchain.

The difference from ordinary stored data is that on the blockchain, the data in the next block includes the data in the previous block.

2. Data update in the blockchain: distributed node consensus algorithm

In terms of data update, blockchain technology uses "distributed Node Consensus Algorithm" to generate and update data.

Every time a new block is generated (that is, when data is updated), it needs to be approved by more than 51% of the nodes in the entire network through an algorithm to form a new block. To put it bluntly, it is voting. More than It can be generated with the consent of half of the people, which makes the data on the blockchain non-tamperable.

At this point, we can understand the blockchain as a ledger that everyone can keep accounts. Then the consensus algorithm is an accounting method that everyone discusses, votes for, and agrees on.

3. Data maintenance in blockchain: cryptography

Blockchain uses cryptography to ensure the security of data transmission and access, and the cryptography principles it applies Mainly include hash algorithm, Merkle hash tree, elliptic curve algorithm, Base58, etc. These principles, in fact, ensure the security of data on the blockchain through a series of complex operations and conversions.

4. Data operations in blockchain:Smart contract

A smart contract is a commitment agreement defined and automatically executed by a computer program. To put it bluntly, it is a set of transaction rules executed by code.

Just like when you buy Coke from an automatic retail machine, click the purchase button, and a bottle of Coke will automatically drop out for you after payment. The outstanding advantage of smart contracts is that they largely avoid a series of problems caused by trust.

2. The role of blockchain

From the definition of blockchain, it is not difficult to see that one of its major characteristics is trustworthiness. The most important thing is that it also has the ability to Features such as centralization, non-tamperability, traceability, and anonymity.

These characteristics determine that it can be applied to many industries, solve the pain points of these industries, and empower the real economy. This is why blockchain is gradually recognized.

According to China Economic Net, Li Guangqian, a researcher at the Information Center of the Development Research Center of the State Council, said, "The application of blockchain in China has extended from the financial field to the physical field, including electronic information storage, copyright management and transactions, products Traceability, digital asset trading, Internet of Things, intelligent manufacturing, supply chain management and other fields." Blockchain technology has begun to deeply integrate with the real economy industry, forming a number of "industrial blockchain" projects, ushering in the industrial blockchain" A great era when a hundred flowers bloom.

Next, we will list several areas of blockchain application to help everyone understand the role of blockchain in our lives.

1. Product traceability

In my country, e-commerce giant JD.com and Ant Financial, a subsidiary of Alibaba, have some implementation in blockchain product traceability. E-commerce companies use open blockchain service platforms to help companies deploy anti-counterfeiting traceability of goods, which has been widely used in milk powder, health products, rice and other products. In 2018’s “Double 11”, more than 150 million products from hundreds of countries and regions were traceable through blockchain.

2. E-Government

Based on blockchain technology, it can solve the pain points faced by traditional e-government and add government, financial, regulatory and other institutions into the blockchain ecosystem. Enable data sharing. Based on the traceability of blockchain, it can ensure that data security is not tampered with; at the same time, since in the blockchain system, it is each node that maintains data security, this makes government affairs more open and transparent, and facilitates supervision.

According to a report by Chain Tower Think Tank, there are currently 17 blockchain e-government applications in my country, involving seven major segmented scenarios: government auditing, digital identity, data sharing, public supervision, electronic bills, Electronic certificate deposits, export supervision, etc.:

3. Electronic invoices

Blockchain electronic invoices have become the application scenario with the most application cases of blockchain technology.

On August 10 last year, “the world’s first blockchain electronic invoice” was launched in Shenzhen, with Tencent Financial Technology as the underlying technology provider. one yearSince then, Shenzhen has issued 8 million blockchain electronic invoices, and more than 5,300 companies or institutions have opened blockchain invoices.

These enterprises or institutions cover a wide range of areas, including banks, subways, taxis, finance and insurance, retail, real estate, tourism, hotels and restaurants, etc. People only need to carry their mobile phones and rely on the payment records on their mobile phones to issue blockchain invoices at any time.

4. Supply chain finance

The core of finance is "credit". Whether it is a loan or financing, it is inseparable from "credit". The "decentralization" idea provided by the blockchain is the most appropriate technology to solve the trust problem. The distributed storage model can promote the sharing of credit information among commercial banks and core supply chain enterprises, and provide enterprises and banks with efficient and convenient information transmission channels.

3. The new wave of blockchain has begun, and there is a huge talent gap

We can find that blockchain is penetrating into our daily lives. In recent years, we have seen that many universities around the world have opened blockchain-related courses. Blockchain learning and education have become a general trend, which also reflects the current market demand for blockchain talents.

Ⅲ How far is Ant Chain from replacing electronic contracts?

As an Alibaba company named by Jack Ma himself, but has not yet completed the name change on the Internet, Ant Chain does seem a bit Too low-key.

In that era when everyone must be called Bitcoin and everyone wants to do ICO, Ant Chain seems a bit out of place.

1｜Ant Chain has accumulated more than 50 application scenarios

In 2015, Alibaba established a blockchain interest group internally and used its spare time to build a public welfare blockchain , Ant Blockchain was born.

Even in the hottest era of ICO in 2017, Ant Chain did not pay attention to the noise from the outside world. It has been silently exploring the application of blockchain, and has successively launched authentic traceability, cross-border remittances, etc. Products and services accumulate technical foundation.

Ant Chain is moving forward in the unaccompanied darkness and making its own way, very much like Alibaba Cloud in 2009.

Data source public data compiled by China Software Network

In 5 years, Ant Chain has accumulated more than 3,000 patents, and officially announced that it has more than 50 application scenarios, with an average daily increase of Chained 100 million times, it has become the largest blockchain application company in the world. Let those ethereal on-chain fantasies of 2017 shine into reality.

According to the research of China Software Network, Ant Chain is currently at least in supply chain finance, joint risk control, asset management, financial leasing, blockchain contracts, traceability services, electronic licenses, bill circulation, invoice circulation, and Information data service platform, remote bidding, blockchain copyright, digital logistics, digital warehouse receipts, joint marketing,There are relatively large-scale applications in 24 scenarios including points marketing, Jifenbao, digital product collaboration network, professional qualification certification services, donation traceability, time bank, pension charity, prescription circulation, and health services. With the help of the "open alliance chain" established this year and the scale effect of the entire Alibaba family of enterprises, Ant Chain has reduced the cost of on-chain for small and medium-sized enterprises from millions to thousands.

Data source: public data compiled by China Software Network

Whose face will be hurt the most by such a large, comprehensive, broad and widespread slap?

2｜Ant Chain aims at electronic contracts

What applications will Ant Chain replace? The first unlucky one must be the electronic contract.

Since the promulgation of the Electronic Signature Law of the People's Republic of China in 2005, national departments and agencies such as the National People's Congress, the State Council, the Ministry of Transport, the Ministry of Housing and Urban-Rural Development, and the National Immigration Bureau have successively formulated many laws, regulations, and Standards have greatly promoted the development of the electronic contract industry. At the same time, electronic contract manufacturers such as e-sign, Fada, Shangshangshou, Trust, and Contract Lock were spawned.

Data source: public data compiled by China Software Network

According to public data statistics, the electronic contract market has been growing year after year. As of the end of 2019, the cumulative number of electronic contracts signed by eSignature has reached 10.5 billion times, with the average daily signing volume exceeding 20 million times. However, its main application scenarios are still concentrated in purchase and sale contracts of consumer terminals, transaction contracts with external enterprises, labor and social security document contracts related to human resources, as well as internal approval and certification documents within the enterprise.

Data source public data compiled by China Software Network

The country promotes relevant norms and standards, and also promotes the four major elements of legal compliance: true will, true identity, The original text and signature have not been changed.

The traceable, tamper-proof, and partially decentralized solutions provided by blockchain's distributed ledger technology are naturally adaptable.

Data source public data compiled by China Software Network

In the environment of commercial transactions, there are often a large number of multi-node and complex process businesses, which often show linear relationships. Before these nodes Insufficient trust, repeated information confirmation and communication will cause a lot of efficiency losses. Distributed ledger technology is currently the best technical solution in this regard.

As soon as electronic contracts were born, they encountered blockchain. These two things, which were born almost at the same time, suddenly found a natural fit in 2020.

3｜Will Ant Chain completely replace electronic contracts?

The development path of Ant Chain is similar to that of Alibaba Cloud. Both were born and developed out of internal needs, and then transitioned to meet external needs to become a star business.

Starting from tracing Ant Charity’s project donations, it can range from managing Tmall’s cross-border products to providing supply chain financial services to internal companies, to protecting Taobao’s image copyrights and paying social security, electricity and water bills on Taobao products. They have thoroughly found corresponding external needs.

It has begun to be applied in scenarios such as cold chain food management, tracing external payments, government finance, public welfare fund management, shipping port logistics and warehousing management, chip financing leasing, blockchain prescriptions, blockchain invoices, etc. .

Finally, we have achieved a little explosion in blockchain charity and a lot of flowering.

If Alibaba Cloud has solved the efficiency problem of cloud computing, then Ant Chain can be said to have solved the value problem of cloud computing. Ant Chain has opened up the physical world and the cloud world, and realized the digitization of assets and data. Breaking the ice on the boundaries of capitalization.

But in the final analysis, the cost cannot be avoided. Due to the complexity of blockchain technology, developing a blockchain application is a luxury for many companies. Developing a blockchain application requires investing millions of dollars, and it also requires connecting upstream and downstream to build an enterprise ecosystem. The time and energy behind it cannot be underestimated.

This is the same for Ant. It has spent huge sums of money to build a blockchain application platform. In recent years, it has applied for more than a thousand patents every year. It will eventually need to be commercialized. Now through its ecological alliance, "open "Consortium Chain" directly reduces this threshold cost to thousands, which is almost consistent with the charges of electronic contract companies. It is a devastating blow to electronic contract companies.

Whether it is its consensus algorithm performance index (TPS) of more than 100,000 times/second, or the recently released all-in-one software and hardware and end-to-end trusted environment, the technical indicators of Ant Chain have ranked first in the world. Yiqi Juechen, far surpassing international alliance chains such as Fabric, Quorum and Corda. Combined with Alibaba's strong business capabilities and government BD capabilities, it will never take more than 5 years to completely replace the current electronic contract form.

With the release of the Ant Chain all-in-one machine, the cost of enterprise on-chain is expected to be further reduced, and further optimization performance will be achieved in terms of deployment time, transaction speed, consensus delay, and accelerated cryptographic operations.

4｜How will blockchain contracts develop next?

What will happen to the current blockchain electronic contracts in the future? We look at the development of blockchain applications from four levels: business, industry development, products, and technology:

1) At the business level, judging from the current application scenarios, there are still many blank areas with " The potential of "on-chain" needs to be developed. At present, it is very compatible with the financial industry. It can connect with other financial businesses such as banking, insurance, and securities industries, and is expected to be further integrated with RPA.

2) From the perspective of industry development, not only Ant Chain, but also the pursuer Tencent Blockchain are trying to build an ecology and develop allianceschain. The alliance chain can greatly improve transaction efficiency and reduce transaction costs because of its "multi-centered" characteristics and the advantages of independent controllability, privacy protection, and high efficiency.

3) From the product level, the blockchain products of major manufacturers are all moving towards platform-oriented, whether it is Ant Chain’s BaaS platform or Tencent’s “TrustSQL”, they are all moving in the direction of platforms. Walk. In the future, small and medium-sized manufacturers can choose to join the SaaS camp of Internet giants, establish their own advantages in specific fields, and move in the direction of "small but beautiful".

Future on-chain applications are expected to provide users with diverse deployment models and product forms to meet personalized user needs. However, cross-chain data exchange and the adaptability of technology and data from different chains will be a challenge for these platform-based enterprises.

4) Since the development of blockchain, the three generations of public chains represented by BTC, ETH, and EOS have made varying degrees of sacrifices in terms of efficiency, security, and centralization. Although Ant Chain The technology is advancing by leaps and bounds, but these three mutually restricting indicators are still important problems that require continuous breakthroughs and are indispensable.

As the amount of data on the chain increases, this problem will become more and more obvious. It remains to be seen whether the current payment ability of Ant Chain customers can cover the costs.

IV How will blockchain define the era we are currently living in?

There will be no lengthy technical science popularization today.
In one sentence, if Internet technology solves communication problems, blockchain technology solves trust problems.
This trust mechanism allows everything to run automatically through preset procedures. In the process without intermediary participation, the efficient and transparent transaction method reduces security costs and improves data security. This strict The algorithm further ensures the authenticity, accuracy, transparency, traceability and non-tamperability of the data.
The core significance of blockchain for today's era is that for the first time, humans have built trust relationships on the basis of technology. The advantages of speed, efficiency, low cost, transparency, and relative fairness have also been applied to various industries. field, amplifying its advantages.
Tencent, Alibaba, Internet, IBM, Intel, Microsoft and other well-known companies have joined the blockchain. Google’s blockchain investment roadmap is mainly aimed at banks and financial institutions, hoping that they can use their own solutions to Optimize large-scale commercial projects; on January 5, Facebook founder Mark Zuckerberg announced that his 2018 personal annual challenge plan is to use "encryption technology and encrypted digital currency" to transform the platform and apply decentralized technology to Facebook services.
In the past two years, Microsoft has cooperated with well-known blockchain projects (such as Ethereum, R3, Xiaoyi, etc.) to vigorously develop its blockchain business; IBM is one of the first large companies to adopt blockchain . WinterGreenResearch's report pointed out that IBM has occupied 32% of the blockchain products and services market with a total scale of more than 700 million US dollars; including MOVA, which is fully imported and controlled by Greenland Group, and applies blockchain technology to price control. These all reflect the revolutionary changes that blockchain has brought to today's era, and there are endless possibilities.

IV Full analysis of Alipay’s mysterious blockchain product “Open Alliance Chain”, the era of universal access to the chain is here

The mysterious blockchain product that Ant has announced for many days has finally been unveiled.

On April 16, Ant officially announced its new blockchain product "Open Alliance Chain". The "Open Alliance Chain" claims to be a universal chain-linking product that "doesn't require a chain and can be uploaded quickly and at low cost" mainly for small and medium-sized enterprises and developers. It focuses on helping developers quickly deploy and develop blockchain-related applications.

According to Ant Blockchain Jin Ge, the "Open Alliance Chain" began testing in December last year. After more than three months of public testing, it has accumulated thousands of customers and developers (active ratio More than 10%), dozens of DApps have been built on the product.

This official announcement also heralds that the "Open Alliance Chain" will officially move from public beta to commercialization.

Lowering the threshold is an eternal topic in blockchain development.

Previously, when various Internet giants entered the cross-border blockchain field, they were willing to start with BaaS services.

BaaS services mainly focus on providing developers with a complete set of development tools to lower the threshold for developers to build their own alliance chain system.

How is the "open alliance chain" that emphasizes further lowering the entry threshold realized?

The biggest difference between "open alliance chain" and BaaS services is that developers can use the blockchain without purchasing servers or building nodes.

Specifically, small and medium-sized developers can directly access the blockchain and carry out on-chain business through the IDE, smart contract development templates, DApp development assistants, and other components provided by Ant Blockchain.

Jin Ge, general manager of the Ant Blockchain Platform Product Department, gave an example of traceability scenarios:

"Open Alliance Chain" is actually a product between a public chain and an industry alliance chain. But in terms of form, it is more inclined to the industry alliance chain.

There are also differences between "open alliance chains" and industry alliance chains. The customer levels and business models they cover are different.

In terms of customer level differences, industry alliance chains cover top customers, such as listed companies or leading companies similar in size to listed companies, which have greater influence in the industry. The "open alliance chain" covers small and medium-sized customers with small revenue and some developers.

In terms of business model differences, industry alliance chains are more project-basedThe implementation period is long and the project volume is over one million. "Open Alliance Chain" emphasizes a ready-to-use, on-demand pricing model with a low threshold.

At the press conference, Jin Ge also made a detailed analysis of the five major capabilities of the "open alliance chain":

Overall, the "open alliance chain" Currently we are adopting a low-cost, low-threshold pricing service model.

From the official website, it can be seen that the open alliance chain provides users with two versions: professional version and enterprise version. The product has three pricings, each priced at 100 yuan/month (professional version, for test-type novice developers) , 999 yuan/year (professional version, for developers who really need to access the blockchain), 4888 yuan/year (enterprise version, for enterprise-level developers with relatively high-frequency transactions).

The enterprise version is suitable for high-frequency scenarios such as games, social networking, bills and people's livelihood, and public welfare, while the professional version is suitable for low-frequency scenarios such as copyright contracts, organizations, and traceability.

Both the professional version and the enterprise version can enjoy the basic services provided by the open alliance chain. In addition to the price, the biggest difference between the two is that the TPS of the professional version user rights is ≤ 10, and the monthly available fuel is 1 billion; Enterprise The TPS available for users' rights is ≤100, and the available fuel per month is 100 billion. In addition, the first 100 enterprise version users can also obtain the creation product status of the "open alliance chain".

In addition to lowering the threshold, large companies are always willing to create scenarios when it comes to blockchain. The evolution from BaaS to "open alliance chain" is also a manifestation of giants attracting more developers by lowering the threshold to feed back application scenarios.

According to reports, the current main application scenarios on the open alliance chain are mainly 2C services, involving game interaction, public welfare traceability, copyright, bills and people's livelihood, etc.

It is easier for customers with their own scenarios to form a relatively stable group.

The follow-up plan of "Open Alliance Chain" is also closely related to the implementation of blockchain scenarios.

Jin Ge also introduced the three-point future plan of "Open Alliance Chain":

1. Create more valuable industry scenarios based on existing customers, and hope In the future, we can expand more blockchain service providers in small and medium-sized enterprise industries, such as education, retail, agriculture, medical care, cultural tourism and other industries, and contribute more scenarios;

2. The Ant Industry Alliance Chain Provide it to customers on an on-demand pricing basis;

3. Gradually add more industry alliance chain technologies, such as digital identity, cross-chain, and cloud integration capabilities, to the open alliance chain according to the market pace Go inside to further lower the development threshold for developers and solve technical problems.

VI Blockchain will follow the same journey as the Internet in the future and can truly change the world

Once upon a time, cryptocurrency was the most popular among peopleIn their eyes, it is a money game that will not produce any value. Some people even hail Bitcoin as the world's largest tulip scam. For example, Chen Sijin is well known to everyone.

More radical people compare Bitcoin to being disgusting and contrary to human civilization. This is Munger’s exact words.

But with the implementation of cryptocurrency applications, facts have spoken louder than words.

For example, we can see the reality: NFT combined with traditional works of art can be auctioned for a sky-high price of 69 million US dollars; DEFI has created a decentralized financial market of more than one trillion; NFT game Axie Infinity The total revenue in a single day has exceeded 40 million US dollars, which is three times more than Honor of Kings. I don’t believe that traditional games are not salivating. There is also web3.0 which is very worth looking forward to.

Every step of cryptocurrency from DeFi-NFT-Metaverse-Game to now web3.0 has impressed traditional capital. So we're seeing some very exciting changes.

I saw a report that after Alibaba, Tencent has also launched NFT, and will sell 300 digital collectible NFTs in the first phase.

Although facing policy restrictions, it may not be possible to trade, but it brings positive signals to the market. Blockchain technology is not air!

Do you still believe this is a complete scam?

Some people say: Using blockchain technology to revolutionize the Internet may be the theme of this bull market.

Decentralization allows the profits of Internet applications to be equally distributed and shared prosperity. I personally believe this with a high probability.

I believe that implementation and application are the ultimate goals of blockchain development. The development of technology can allow the cryptocurrency trading market to get out of the traditional bull-bear cycle, allowing this market to truly bid farewell to the fate of harvesting leeks.

Because the mentality of currency speculation is abandoned, cryptocurrency can be used as a productive capital investment. I think this is the voice of some people in the currency circle, and it also includes many big guys.

If the mentality and goals of market participants have changed because of the greater application of cryptocurrency, there may be a change in the past history.

It is increasingly felt that the blockchain will follow the same journey as the Internet in the future and can truly change the world.

The market has been rising for several consecutive days. We say that there is no market that only rises but never falls. Now market confidence is slowly recovering. Investors will still worry when there is any disturbance.

Jiang Zhuoer’s article “Do not support deep bears in the era of excessive flooding” clearly stated that even if this round is a bear market, is also a short bear market, that is to say, it is not a bear market that lasts for more than a year.

Of course, Jiang Zhuoer’s views come not only from a very detailed analysis of the market, but also from the impact of the general environment and climate, such as the substantial increase in the social acceptance of Bitcoin and the era of excessive water release after the new crown. Investors have decided that there will be no deep bear in 2014/2018, and the remaining script is nothing more than a double-headed bull market in 2013 or a monkey market in 2019. To be honest, although Jiang Zhuoer had no choice but to become an emotional blogger on Weibo, I personally admire his long-term value investment views on cryptocurrency. And most people also report that its success rate in predicting the market is extremely high.

From the data on the chain, both whales and retail investors are buying in large quantities.

Market confidence is also recovering, with the greed index returning to above 0.5.

If the bull market restarts in the second half of the year, every adjustment should be an opportunity for us to buy low.

Even if the worst happens, it will still be a short bear as Jiang Zhuoer said, and there is nothing to be afraid of. Maybe I'm a little optimistic.

Let’s take a look at the trends of Bitcoin and Ethereum

The market of Bitcoin continued to fluctuate downward yesterday, with prices under pressure around 41500 and 40400 respectively. Although there were subsequent rebounds out, but the upward momentum is beginning to weaken. It fell below and moved downward again during the day. It is now close to the lower track of the support area mentioned yesterday. The trend has gone up to the 40,000 line and is under pressure. The highs are constantly moving downwards. The early gains are giving up. If the lows are refreshed again in the future, the price will retrace within the day. 38,000 first-line risk.

Looking at the four-hour chart, the Bollinger Bands are open, the price is running in the middle and lower rail areas, the trend remains weak and oscillating, the moving averages are in a downward posture, and the short-term range is constantly moving downwards. If the follow-up The low of 38690 has been refreshed, and the price is expected to test further downwards. I hope you will be prepared in advance. The current trend is fluctuating downward, so when the market does not break through and stabilize at 40,000 during the day, it is recommended that short orders are the main idea, and long orders are supplemented. The upper side suppresses and focuses on the vicinity of 40,000. The rebound allows short orders to be entered nearby, with stop loss at 404,500 and take profit at the 39,300-38,900 area. If it falls below the short-term support of 38690, you can consider short positions and take profit at about 400 points. Consider the 38,000 line for long orders during the day, stop loss at 37,700, and take profit at the 38,500-38,700 area.

Let’s take a look at Ethereum:

Affected by the market yesterday, the upward trend was interrupted, and the price came under pressure to the 2700 line. Although it rebounded many times in the future, No breakthrough has been made. When the trend rebounded to 3660 during the day and came under pressure, the bullish sentiment began to weaken and the trend returned.It is expected that the market will continue to fluctuate for a period of time, and the range will focus on the 2500-2700 area.

Looking at the short-cycle hourly chart, the market is under pressure and has pulled back during the day. The current trend is fluctuating around the mid-track. The long and short sides are relatively stalemate. The short-term trend is relatively stalemate, and there is no sign of breaking, so the market is expected to fluctuate. It will continue, we can operate high and low during the day. The upper side suppresses and focuses on the vicinity of 2665, and allows short orders to enter the market. Stop loss is 2700, and take profit is below 2600. The support below will focus on the vicinity of 2560. If there are long orders nearby, consider entering the market. Take profit above 2620.

#BTC[超话]# #欧易OKEx# #digital currency#

Ⅶ What are the capitals that specialize in investing in the development of blockchain technology

Foreign capital investment in blockchain technology development mainly includes Microsoft and Facebook, while domestic capital investment in blockchain technology development mainly includes some Internet capital companies such as JD.com, Alibaba, and Tencent. Because blockchain technology is still sought after by many people in the market, and this technology will also have very large economic value in the future, many Internet companies will invest in blockchain technology and develop it as a standing business of the company. Once the company When encountering a relatively large business crisis, blockchain technology can help companies survive the crisis, so many companies have made plans to research blockchain technology.

Blockchain technology not only has great development potential in the entire Internet transaction market, but also has market value in terms of security. Because with the continuous development of the market, digital money transactions will become the main direction in the future, so people will increase research on digital currency transaction forms, and digital transactions will involve the development of blockchain technology, so many companies are always Seeing the growth point of blockchain technology, we will spare no effort to invest in the research and development of blockchain technology. Once a company can successfully master blockchain technology, I think it will generate considerable economic value.

Ⅷ How to define blockchain and what are the application scenarios of blockchain?

Nowadays, many people think that blockchain is a universal technology that can do anything, which is somewhat different. Blockchain technology is a myth!
Regarding the definition of blockchain technology, American scholar Melanie Swann defined blockchain technology as an open, transparent and decentralized technology in her book "Blockchain: A New Economic Blueprint and Introduction" database.

Definition of Blockchain: Narrow VS Broad

As for the application scenarios of blockchain technology, it is natural to combine the differences between blockchain and other technologies. In terms of system characteristics.

Blockchain technology features include:

Blockchain is a global everywhere, canA database storage system that can operate collaboratively is different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (centralized characteristics). Blockchain believes that anyone with the ability to set up a server can participate. . Nuggets from all over the world have deployed their own servers locally and connected to the blockchain network to become a node in this distributed database storage system; once joined, the node enjoys exactly the same rights as all other nodes and obligations (decentralized, distributed characteristics).

At the same time, those who provide services on the blockchain can perform read and write operations on any node in the system. In the end, all nodes around the world will complete the process again and again according to a certain mechanism. Synchronize in sequence to achieve complete consistency of data in all nodes in the blockchain network.

At the beginning of this year, the term blockchain began to enter everyone’s lives. From national leaders to aunts who dance square dances, everyone knows this term. This term is widely known by Bit Brought by coins.

As we all know, the first few dozen bitcoins could only be exchanged for one pizza. At its peak, it was more than 20,000 US dollars each, which has skyrocketed by more than a thousand times, which has also benefited a large number of wealthy people. Currently, there are blockchain The virtual currency generated by technology is gradually entering into everyone's life, and many people have joined the ranks of currency speculation. I often hear people say that if you buy the right currency a hundred times, a bicycle will become a sports car, and one coin will turn a young model. You can imagine how many of them are involved. Attractive.

Since 2008, various games applying blockchain technology have also become popular, such as development games (Network Letts Dog, 360 Block Cat), mining games (NetEase Planet, Virtual Earth, Gongxinbao), these are attracting everyone to join in the name of blockchain, and of course there are some that are really reliable, which requires everyone to identify them carefully.

The three words "blockchain" were completely ignited during the Spring Festival that just passed, and the limelight overshadowed everything else. Some people said that this is the arrival of a new era, and the past has become classic, and others To say that everything is hype is ultimately a bubble.

In fact, blockchain technology is not a new concept. It has been applied to many industries, such as electronic signatures, as early as the past two years. Recently, the third-party electronic signature platform eShanbao revealed the latest progress of blockchain applications to NewSeed.

Currently, blockchain technology is mainly used in e-signing products for certificate deposit and certificate issuance. The application scenarios include copyright protection and online signing. , web page forensics, phone recording, email storage, etc.

Take the rights protection of online works as an example. Since online rights protection generally adopts the method of collecting evidence after the fact, real-time confirmation of rights is not carried out in the process of evidence generation, so the entire confirmation process is difficult. The authorization process is time-consuming and difficult to obtain evidence.The cost is high, and it is extremely difficult to prove and trace the source. It cannot meet the characteristics of rapid dissemination and large quantity of online works.

eShanbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication and solidifies the information generated during the real-time solidification process. Electronic data, and through the time source service synchronized with the National Time Service Center, online works are stamped with legally valid timestamps to prove that electronic files have not been tampered with in a certain period of time. Blockchain technology can establish point-to-point trust in the network, ensuring that all blockchain nodes can record complete copyright confirmation and transaction records, and can trace their origins, truly realizing anti-repudiation and anti-tampering, and realizing a kind of distribution. trust infrastructure.

Founder and CEO Jin Hongzhou believes that the application of decentralized blockchain technology has greatly improved the efficiency of data storage and certification, and The credibility of the identity of the parties reduces the cost of trust, but it cannot replace the original centralized public key encryption technology. The two should complement each other. Through the combination of the two, it can provide users with real-time and reliable Confirmation plan.

Next, e-Shanbao will also focus on building a smart contract platform based on blockchain technology. Jin Hongzhou said that data storage, Issuing certificates is only a relatively superficial application based on blockchain technology. It is the first step to implement blockchain technology, and the realization of real smart contracts is the second step. "Smart contracts cannot simply be understood as electronic contracts. They refer to a process, from the conclusion of the contract to the confirmation to the final execution." Jin Hongzhou explained.

Through the following limited cases, I hope everyone can understand the actual performance of blockchain technology, thereby stimulating interest in such solutions.

1. Administrative Services

Over the centuries, the roles and responsibilities of public administration have not changed significantly – or rather, what has changed dramatically is actually the size of the data and the specific ways in which public agencies handle it. Although various digital technologies already exist to help collect and process data, issues such as anonymization, portability, and the immutability of large amounts of data remain unresolved.

Sasha Ivanov, founder, entrepreneur and CEO of Waves Platform and Vostok projects, said, "What the public administration currently lacks is a more convenient user experience (UX) for data use. To improve the user experience , we should introduce some kind of layer to it that acts as a trusted public environment that is transparent and can store data anonymously and immutably."

Governments are working on this by launching the U.S. Federal agency and enterprise-level initiatives such as the Federal Blockchain Initiative are gradually confronting the existence of such problems.The United States held its first federal government blockchain forum in July 2017, and the U.S. General Services Administration currently has more than 200 related use case repositories. Ivanov explained, “Distributed systems can really help us build such a reliable environment, improve our big data work, and even integrate all emerging technologies – including artificial intelligence and the Internet of Things. In fact, , whenever we face any kind of technology, it always embodies the sum of certain other technologies."

Now, the system supported by the blockchain can actually work - this This view has been unanimously recognized by all experts and has become the most important theoretical basis. In other words, what we need to do next is create more production-ready solutions.

2. Payment services

The government needs to process transactions, many of which involve the exchange of funds with citizens. Blockchain technology has huge potential application value in reducing the cost of fund transfers - including using new blockchain-based cryptocurrencies as intermediate transaction carriers, or using blockchain as a means of fund transfer, etc. Once a perfect solution is discovered, the business opportunities will be endless - especially for those who need to conduct frequent cross-border or Internet transactions.

The Jasper project was developed by the Bank of Canada to help it further think about how central banks and other financial institutions should implement payment operations between different banks based on distributed ledgers. The Bank of Canada has also developed its own digital currency variant, “CAD Coin,” to test the feasibility of using a national currency on top of the blockchain.

This project brings to an interesting conclusion that we should say no to proof-of-work public chain systems. In a paper titled "Project Jasper: Is a Distributed Batch Payment System Feasible?" the author observed that "Proof-of-work systems are not suitable for such large transaction processing systems because they assume that all transactions in the system are There is a need for openness and observability to a certain extent.”

3. Digitization and intellectual property

Governments are responsible for maintaining copyright records and databases. These records prove ownership of intellectual property. A blockchain-based system would allow artists, performers and writers of all kinds to time-stamp their works and theoretically detect copyright infringements and even keep a permanent record of their rights. In fact, many governments have already taken important exploratory steps in this direction.

Iran recently announced that it will deploy this technology. "Iran Financial Tribune" quoted Morteza Mousavian as saying that "the Digital Media Department of the Ministry of Culture has reached an agreement with a blockchain company to jointly design a system that can be used to protect online copyrights." He also added that "the relevant procedures will Released soon to users in an easy-to-use format."

This work is still in the early exploratory stages, but it offers enterprise customers the possibility of preserving records through replication technology. From a theoretical level, companies can use blockchain solutions to conduct financial accounting and discover errors in real time.

4. Welfare distribution

The government has the responsibility to create a level playing field for citizens. Citizens who are chronically poor or economically disadvantaged certainly need government support and assistance to ensure that they are able to sustain themselves and develop. However, welfare distribution is neither simple nor often straightforward. Problems such as corruption and impersonation have been wreaking havoc on various distribution channels within government schemes.

In China, the National Council of Social Security Fund is conducting early research on how to use blockchain technology to improve the delivery of national benefits to citizens. At the same time, India is also taking action. Andhra Pradesh and Telangana are already using blockchain to support their civilian resource supply systems.

It is said that many companies, including Microsoft, are also considering using the same technology. These solutions, which will touch individual employees and functional roles, are expected to gradually appear in small businesses in the near future.

5. Bidding activities

In order to build public infrastructure or provide related services, the government hopes to achieve economies of scale and competitive gains through bidding as much as possible. However, the bidding process is often not fair or transparent. Public procurement has long been a major scene of rampant corruption around the world. Transparency International noted that “many governments will award project contracts to a certain supplier in the absence of fair competition. This allows companies with greater political resources to improperly win over competitors; or companies in the same industry Bids will be negotiated in advance, ensuring that each company gets a share of the tender. This will significantly increase the cost of delivering services to the public - we have found that corruption issues can increase project costs by 50%."

So, how can blockchain technology solve the bidding problem? According to Ivanov, “Unlike decentralized centralized systems, independent ledgers powered by blockchain will be able to improve bidding or anything else that needs to be tracked. Transparency of financial processes. The intervention of blockchain technology will help track the use of funds and ensure that they are paid out as expected and within the allowed time."

Currently, Japan's internal affairs and The Ministry of Communications has announced a blockchain-based bidding system, which means that in industries with serious collusion problems, small and medium-sized enterprises are expected to usher in a more transparent bidding method and brighter development prospects.

Although quite a few of the cases mentioned previously are far from finalized, they do provide many possibilities for companies and governments. The key, of course, is implementation; and we should alsoWhen looking at all this with optimism, that is, although blockchain technology is often misunderstood by people, it is and will eventually find a direction in which it can exert its own energy!

In layman's terms, blockchain is like the Great Wall There are more than a dozen beacon towers on the mountain. If an enemy comes, they will set off smoke. The other beacon towers will know about it and enter a defensive state together. In technical language, it is a distributed ledger. Each node keeps accounts separately. The failure of one or two nodes will not affect the entire network.

How is this distributed network different from the distributed servers of Google Network? Google Network's distributed servers still belong to Google Network and are controlled by their central scheduling algorithm. The distributed nodes in the blockchain do not know each other and have no legal relationship. You can just go offline and shut down if you want, but because of the currency rewards, there will always be someone who will turn on the machine as a new node to support the network.

After the popular and technical explanation, I hope you understand. So the first application scenario is finance. I put my money in Alipay. If Alipay doesn't recognize it one day, there's nothing you can do. But on the blockchain, it is useless if one node does not acknowledge it, because other nodes still have my records. The second is the contract. Nowadays, contracts are made on paper and are easy to be faked. But if they are put on the blockchain, they cannot be faked.

There are more application scenarios. It is recommended to check the top 100 digital Huobi online to understand the corresponding projects behind them and become a blockchain expert. .

Blockchain technology was first used in Bitcoin. Blockchain provides a reliable and trustworthy means of organizing data for cross-subject business scenarios. JD.com is essentially a supply chain company, and blockchain technology will be first used in many scenarios of the supply chain.

Blockchain is a decentralized technology. Blockchain can be applied to all products currently covered by the Internet.

The most popular application industry at present is the financial industry.

An application that has been implemented is product traceability. Alibaba and JD.com are already using blockchain technology to fully trace the origin of some of the products they sell. Consumers can trace the origin of the purchased products. There are also many blockchain applications in the digital advertising industry. Since digital advertising traffic fraud causes losses of tens of billions of dollars every year, there are already blockchain application projects based on digital advertising, such as DCAD, which is based on blockchain. The digital advertising application of blockchain technology mainly solves the problem of traffic fraud

In the future, as the application of blockchain technology becomes more mature, it will be applied in many industries, creating a new ecosystem based on technological trust. Mode

The characteristics of blockchain are distributed accounting and decentralization, but the ultimate goal is to ensure communication between people.There is more equality everywhere. Technology is meaningful only when it serves human values, and technology that meets human value needs will develop. Therefore, blockchain is in line with human pursuit of freedom and equality, so its trend to become mainstream is unstoppable.

Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free and global social platform. Due to decentralization, your chat communication information is peer-to-peer and cannot be viewed by others. In other words, your every word and deed will no longer be recorded and reviewed at any time like it is now on WeChat, QQ, and Facebook, freeing you from the trouble of surveillance.

In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can be completed online and confirmed at multiple nodes, making it difficult (almost impossible) to delete.

At present, blockchain is still in its infancy, and the technology is not mature enough, but it is also a better time to enter.

What is blockchain

If we use non-technical terms to explain blockchain, blockchain is a place where data is stored. However, the data stored in the blockchain is safe and reliable and does not need to be managed by anyone, so In the Internet, a place where data and information are exploding, having such a place would be like a magical treasure.

What can the blockchain do?

If you ask what the blockchain can do, it is better to say what applications require the use of the blockchain. As mentioned earlier, blockchain is a safe place, so wherever data needs to be protected securely on the Internet, blockchain technology needs to be used. For example:

Because the use of blockchain technology can better protect the data of policyholders, in today’s Internet, data is value and wealth, so value protection and value transmission are the future development directions of the Internet. And blockchain technology can really do just that.

If there are any deficiencies, you are welcome to comment and correct me.

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.

The two parties involved in the transaction do not need to know who the other party is, nor do they need a third party for trust endorsement. They only need to trust a common algorithm to establish mutual trust and conduct direct transactions.

Its characteristics are trustlessness and decentralization. The destruction of each node's ledger has no impact on the entire blockchain. The blockchain runs point-to-point payments without a center that may cheat, and the security is greatly improved. Improved, the entire transaction network has changed from a star structure to a point-to-point P2P structure.

In the future, blockchain will be used in many fields and will have a great impact on human life. . From digital currency to securities and financial contracts, medical care, games, artificial intelligence, smartIt can be widely used in energy contracts, Internet of Things, e-commerce, file storage and other fields.

1. Cloud storage

This is the statistics of current cloud storage on the Internet. In terms of volume, Google has the largest volume, which is 8,000PB. So what if we share the idle data on the Internet?

Starlight Cloud builds a blockchain data computing and storage lake through Starlight Chain, with a total storage capacity of 15,000P (approximately 15,728.64 billion G) in the future. This will be more than 10 times that of Alibaba Cloud's 1500PB! It is also more than four times the size of the Taizhou Storage Center, the largest storage lake in the world after expansion.

2. Medical aspects

Using blockchain technology to save personal medical records also retains personal medical historical data, which can be used when seeing a doctor or planning for your own health in the future. Historical data can be called directly. These data are highly private, and the use of blockchain technology also helps protect patient privacy.

Ⅸ What Alibaba has done on the blockchain

Jack Ma: I want to know what Bitcoin can bring to society

At the two sessions, Jack Ma... Oh, sorry, Comrade Ma Yun, who didn't want to wear a red hat, did not attend the two sessions.

So, let’s review Jack Ma’s remarks when evaluating Bitcoin:

In November 2017, Alibaba, Ant Financial and Xiongan Signed a strategic cooperation agreement to build the "Digital Xiongan Blockchain Implementation Platform". Currently, Ant Financial has provided blockchain application technology in the rental field in Xiongan. It can be said that Xiongan has become Alibaba’s first experimental field for the overall implementation of blockchain technology.