ibm区块链技术,区块链蓝皮书2020

IBM 区块链技术是一种分布式数据库技术，可以用于构建可信赖的可信赖的数据网络。IBM 区块链技术可以帮助企业实现更快捷、更安全的数据交换，从而提高业务效率，提升客户体验。IBM 区块链技术的最新蓝皮书2020，收集了最新的区块链技术趋势，以及它们如何为企业提供更多的价值。本文将介绍智能合约、侧链和Hyperledger Fabric三个与IBM区块链技术相关的关键词。

智能合约（Smart Contract）是一种计算机程序，可以自动执行合同的条款，以实现自动执行的协议。它可以用来实现自动执行的交易，从而减少交易中的风险。智能合约可以用来实现复杂的业务流程，如财务报表的确认、财务交易的记录、投票结果的确认等。IBM 区块链技术可以帮助企业实现更高效、更可靠的智能合约，从而提高企业的业务效率。

侧链（Sidechain）是一种与主链相关联的链，可以用来存储和传输数据。与主链不同，侧链可以为特定应用程序提供更高效的数据传输。IBM 区块链技术可以帮助企业构建可靠的侧链，以满足企业的特定需求。例如，企业可以使用侧链来存储和传输数据，以提高企业的数据安全性，并减少数据传输的延迟。

Hyperledger Fabric是一种开源的区块链框架，由 IBM 开发，可以帮助企业构建可靠的分布式应用程序。Hyperledger Fabric 具有高性能、可扩展性和安全性，可以帮助企业实现更快捷、更安全的数据交换，从而提高业务效率。Hyperledger Fabric 具有灵活的授权模型，可以帮助企业实现更安全的身份验证，从而提高企业的数据安全性。此外，Hyperledger Fabric 还支持多种数据模型，可以帮助企业更好地管理数据，从而提高企业的业务效率。

以上就是IBM区块链技术蓝皮书2020中关于智能合约、侧链和Hyperledger Fabric三个关键词的介绍，IBM 区块链技术可以帮助企业实现更快捷、更安全的数据交换，从而提高业务效率，提升客户体验。通过使用IBM区块链技术，企业可以更好地管理数据，从而提高企业的业务效率。

请查看相关英文文档

Ⅰ Hot! Create and play with your own blockchain in 5 minutes

Blockchain is developing so fast this year! From an unfamiliar concept at the beginning, it has now taken off in various industries. A single spark has the potential to start a prairie fire. I really hope I can have my own blockchain to practice with! But how can one person and one computer set up a blockchain environment? The blockchain is so popular that it is not easy to say that I love you!


Don’t Worry! The editor has been addicted to blockchain and smart contracts and can’t extricate himself! Now I will take you step by step to start from scratch and create your own blockchain in 5 minutes! ~
The SuperVessel platform developed by IBM China Research Institute provides a blockchain development and testing environment for blockchain enthusiasts and developers. Through this platform, users can create multi-node blockchains based on Hyperledger Fabric for free and super quickly, and play with smart contracts on their own chains.
----
0.
Preparation
All you need is your local browser!
1. Register an account
Access the public beta address of SuperVessel blockchain service: 8800/bc.
Click the Log in button in the upper right corner, click Register in the pop-up window, fill in your email and password and submit. At this time, it is recommended to check the activation email in your mailbox and activate your account (Editor's tip: It doesn't matter if you activate lazily, but some advanced services must be activated before they can be used).
2.
Quickly create your own blockchain
After registration is completed, return to the homepage and click on the huge GIVE ME A BLOCKCHAIN ​​(Give me a blockchain!) button. Select the Consensus Plugin (consensus plug-in) and Size (number of blockchain network nodes) you want in the pop-up box.
Editor's note: Currently there are two consensus plug-ins officially provided by Hyperledger Fabric: noops and pbft.
After clicking Submit, you will get your own blockchain in a few seconds and automatically enter the monitoring panel. That’s right, getting your own blockchain is that simple!
After entering the monitoring panel, you can see that the left side is the smart contract management panel, including the management and deployment of smart contracts; the right side is the network panel, which displays the applied blockchain network status, topology, and connections between nodes. Latency information, etc. are clear at a glance; click the telescope icon in the upper right corner to monitor the log information of each node in real time. The bottom is the blockchain panel, which shows the overall situation of the current blockchain. In the initial state, there is only one block.
3. Deploy and use smart contracts
Next, the editor will teach you how to deploy smart contracts in your ownDeploy and use smart contracts on the blockchain.
Under the Smart Contracts tab of the smart contract management panel, 2 smart contracts are listed as examples, namely map and chaincode_example02. The map contract can store key-value pairs, and the chaincode_example02 contract can simulate transfers and queries between two people.
Editor's note: The codes for these two sample contracts can be found in the Hyperledger Fabric source code.
Take the deployment and use of the chaincode_example02 contract as an example:
Deploy the contract
Click the Deploy button corresponding to the chaincode_example02 contract, and fill in the initialization value of the contract, including the contract name, initial function, and initial parameters. The initial function of the contract is init, and the initial parameters need to be filled in according to the format, such as ["a", "100", "b", "200"], which means registering two people a and b, giving them 100 units and 200 units respectively.
Click the Deploy button and the contract will be deployed in your blockchain. The process will take about 20 to 40 seconds. When a new block appears on the blockchain panel, it usually means that the contract has been deployed.
Call the contract
After the deployment is completed, view the deployed contract instance under the My Deployment tab of the smart contract management panel.
Click the Invoke button below the Action to call the smart contract, and fill in the called method name and corresponding parameters (the method names and parameters of different contracts have different meanings, which are related to the content of the contract). For this contract, call the invoke method name and fill in the parameters ["a", "b", "50"], which means a transfers 50 units to b.
After clicking Submit to complete the call, you can view the blockchain situation and a new block will be generated.


Query Contract
After the call is completed, you can query the contract execution results. Still under the My Deployment tab, click the Query button under Action to query the smart contract, and fill in the query method name and corresponding parameters. If you select the query method name and fill in the parameter ["a"], it means querying the current unit of a.
After clicking Submit, you can see that the current unit of a is 50. You can try query b again!
OK, then you can continue to operate the contract, observe the blockchain situation, or deploy a new smart contract, such as map, on the blockchain. For ease of use, the method names and parameter formats for deploying, calling, and querying contracts are all filled in by default. You only need to select a method name and change the parameters as you like! See if you can play with the chainHow long~
4. Upload and test your own private smart contract
In addition to the two public smart contracts currently provided, you can also upload and test your own private contract! Private contracts can only be seen by you.
Click Import private smart contract under the Smart Contracts tab.
After filling in the contract name and description, and uploading the contract code file, click Import to complete the upload.
Then the contract I uploaded will appear in the Smart Contracts list and can be deployed, called and queried as before.

Ⅱ Coin Bank Bitcoin Stability IBM Proposes Blockchain Commercial Application Principles

According to the transaction data of OKCoin, a well-known domestic Bitcoin exchange platform, yesterday (April 10) After the market opened, the currency price briefly reached a new high of 7330 and then began to show an obvious decline. The price fluctuated all the way down, but the overall decline was limited, and the lowest only dropped to the 7180 line in early trading today. As of press time, the currency price was last trading around 7250.

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Transaction data of OKCoin, a well-known domestic Bitcoin exchange platform

OKCoin analysts said that at the daily level, yesterday’s daily The line closes the small spindle line with a slightly longer shadow line. The upper part continues to be suppressed by MA60, causing the high pressure to fall back. MA5 is still in an upward state and forms an effective support for the price. The space between pressure and resistance further shrinks; 4 hours At the 1-hour level, the moving average system (5, 10, 20) once again tends to stick to the winding operation, and the low point moves upward unchanged, but the high point cannot effectively reach a new high; at the 1-hour level, the price shows a narrow and weak oscillation trend, and the trading volume The contraction is obvious, and the MACD Express Line (DIF) has a tendency to cross the zero axis.

In terms of industry, OKCoin learned that blockchain or distributed ledger technology is rapidly entering enterprises. Just like the Internet revolutionized communications in the 1990s, blockchain may become transformative for commercial transactions. technology. In the supply chain and logistics industry alone, this technology could save billions of dollars every year, drastically reducing delays and failures. The potential impact is far-reaching, with the World Economic Forum stating that reducing barriers to the development of international supply chains could increase global GDP by almost 5% and total transaction volume by 15%.

In order to best obtain the value of blockchain technology, IBM recommends technology users in supply chains and important industries such as finance, retail, and energy to deeply understand the core elements of this technology.

1. Blockchain contains the potential to transform trade, transactions and business processes

There are two concepts at the bottom of blockchain, "business network" and "ledger". Put together, blockchain is a smart, immutable way to conduct trade, transactions and business processes. Network members conduct asset transactions through a ledger that is visible to all members. The ledger is synchronized in the network, and when assets are exchangedBefore it can be easily recognized and recorded on the blockchain, all members need to confirm the transaction information of tangible and intangible assets. This consensus helps achieve legitimacy and transparency, even if the transaction parties are not familiar with each other.

2. As the blockchain network develops, its value will be reflected in the ecosystem

As a business network, blockchain can include different types of participants. The number of participants in a blockchain network, the value of the assets to be traded, and the need to provide various qualifications and authorizations to participants all make it important for technology adopters to pay attention to the differences between "permissioned" and "permissionless" blockchain networks. . The realization of the real value of blockchain relies on the development of business networks. The powerful ecosystem enables business networks to easily reach the critical majority, allowing users to build new business models and transform transaction processes.

3. Blockchain can greatly improve business visibility and trust

Blockchain can reduce transaction settlement time from days to seconds, and all participants can browse . The technology can also reduce exorbitant costs and eliminate the need for third parties, especially middlemen, to verify transactions. Because blockchain is built on the concept of trust, it can reduce the risk of illegal activities in the payment network and eliminate fraud and cybercrime.

Speed, cost-effectiveness and transparency are among the greatest benefits that blockchain can bring to enterprises and enterprise ecosystems. For example, IBM, Walmart and Tsinghua University are using blockchain technology to solve food safety threats. Blockchain allows supply chain participants to see the same records and can narrow down the source of contamination.

Ⅲ Does blockchain have development prospects in the future?

A series of large companies such as Tencent and Alibaba are all trying to share and seize the blockchain cake. Do you think it has any development prospects? Of course there is! Below are the top ten predictions of the China Academy of Information and Communications Technology on the global blockchain. I hope it will be helpful to you! !

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From the current market media information, we can see that blockchain information has occupied the major media landscape. It is not an exaggeration to say that it is in the center of the storm. The appropriate metaphor is that it is in the center of the storm.

Why does the blockchain become so popular all of a sudden? Let’s talk about the currency circle. For example, a mainstream currency actually appeared a few years ago, but because the single value direction is not recognized by people, it is not It is worth entering the public eye. After several years of skyrocketing, it seems that some potential human nature has suddenly been activated. It is similar to buying a house. Everyone cannot understand it. It is tempting, explodes, and then activates greedy human nature. Then the information exploded all at once. Seeking knowledge is what everyone wants. Knowing what currency isHow it came about, how it created the coin. So this is how the term blockchain was discovered.

Back to the topic, there is a difference between the currency circle and the blockchain. The currency is just an extension of the blockchain, and the blockchain is the underlying development structure of the currency. Blockchain uses code architecture to build a data distribution architecture similar to a spider web. The information in each link is a storage node, which is different from the previous centralized information storage centers. If you want to modify one of the links, other storage information nodes do not allow it, and you cannot modify the underlying information. This kind of storage center Optimized information distribution is theoretically safer and has better information flow. Just like a house, the framework determines the layout of the house and the comfort of lighting. The principle of building the code architecture is also critical. The specific architecture of the blockchain There is currently not much reference information to what extent the utilization value can be achieved, but large companies have begun to make plans. Judging from the current popularity of the currency circle, the financial attribute field of blockchain is more attractive than other fields. .

The development prospects of the future blockchain are certain. If you want to understand the prospects of the blockchain field, you still need to have a deeper understanding of what the big guys in the current blockchain field are doing. For example, a certain investment giant What are V people doing using blockchain? The direction they are taking has set the benchmark for the development of this field to a certain extent.

I still advise that there are risks in certain coins, so do it and cherish it.

The prospects are great

Blockchain is called the next generation of disruptive core technology, and some scholars believe it will redefine the world. Our government also supports blockchain technology. All its codes are transparent and each personal information is stored on a separate chain. Compared with the current leakage of personal information, the emergence of blockchain will effectively solve this problem. Question, secondly, there are many other applications of blockchain, private messages that need to be understood!

The current public misunderstanding about blockchain is mainly due to the state’s jurisdiction over digital currencies. The emergence of digital currencies has greatly threatened legal tender. The state has no control over this uncontrollable currency. Supported! However, if digital currency can be effectively popularized in the future, this decentralized currency will be even better than legal currency in terms of security and cost.

Based on the above personal opinions, if you are interested in blockchain and digital currency, please feel free to discuss in private!

Judging from the current situation, it is relatively simple for major Internet companies to test blockchain application functions and is still in its infancy. The real potential application space of blockchain (finance, government affairs, medical care, etc.) is still huge, and it will take time to slowly explore it. In the short term, it does not yet have the conditions for large-scale implementation. However, recently, major Internet companies have frequently deployed blockchain technology, which has played a positive role in cultivating and promoting blockchain in my country's market. Especially in the A-share market, it has attracted strong attention from investors. China Merchants Securities believes that through the conduction of major Internet companies, the development of blockchainThe audience will gradually expand from niche players to the general public.

The current trend is good.

1. Distributed ledgers improve social efficiency.

2. Certain industries can reduce the need for intermediaries.

3. The development of storage and computing performance may bring more industry opportunities.

Bitcoin can solve these problems, and Bitcoin is BSV.

To be honest, the prospects are very good! If you want to talk about digital currencies like Bitcoin, I think the prospects are not great now. Firstly, because mining is now very difficult and it is basically difficult for individual users to mine it, but because the volatility is too high and the water level is too high. Deep down, investment is basically about losing more and making less. The money that can be made is miners and exchanges.

But blockchain is different. Blockchain is a technical and knowledge-based thing. It can be used in many aspects, such as shopping transactions, transportation and logistics, finance, insurance and many other aspects. It can be applied. Not many banks are now cooperating with Internet companies to develop blockchain.

Therefore, blockchain should have good application prospects in the future, mainly because the technology itself has many advantages and has a wide range of applications.

Blockchain definitely has development scenarios! Blockchain technology can be applied in many fields, including finance, insurance, and shopping transactions. And due to the advantages of the blockchain itself, decentralization, asymmetric encryption, etc. are a good way to solve the current trust problems in people's production and life. The future prospects of digital currency may not be great, but I think blockchain has huge room for development.

Qianzhan believes that China’s blockchain market will maintain rapid growth, with a compound annual growth rate of 73% in market size from 2021 to 2026. The market size in 2026 will reach US$16.368 billion, and in the next 20 years , China’s blockchain industry market size is expected to reach the trillion level.

China’s blockchain industry market is developing rapidly

From 2017 to 2020, large IT Internet companies have deployed blockchain, start-ups have entered a blowout mode, and the industry scale has continued to expand. According to IDC According to the data, China's blockchain industry has experienced changes from a market size of US$85 million in 2017 to an industry scale of US$561 million in 2020.

In terms of the number of enterprises, in 2020H1, my country provided blockchain professional technical support, products, solutions and other services, and the number of new blockchain enterprises with input or output reached 303, a year-on-year increase of 274.07 %.

The number of China’s blockchain patents accounts for a large proportion of the world, and the industrial agglomeration effect is beginning to show.

From the perspective of the global competition landscape, my country’s competitive advantages in the blockchain industry are relatively high.To be obvious. Judging from the number of patents, according to data from the "Global Enterprise Blockchain Invention Patent Ranking in the First Half of 2020" released by IPRdaily, the world's authoritative third-party intellectual property agency, and the incoPat Innovation Index Research Center, the TOP 100 companies mainly come from 14 countries and regions. , China accounts for 46%, followed by the United States accounting for 25%.

As an important carrier for the development of blockchain industrial clusters, local governments are accelerating the construction of blockchain industrial parks. Judging from the location distribution of industrial parks, there are a large number of blockchain industrial parks in cities such as Beijing, Shanghai, Hangzhou, Guangzhou, Chongqing, Qingdao, and Changsha, forming a Bohai Rim agglomeration effect dominated by Beijing and Shandong, with Zhejiang and Shanghai , the agglomeration effect of the Yangtze River Delta dominated by Jiangsu, the agglomeration effect of the Pearl River Delta dominated by Guangdong, and the agglomeration effect of Hunan, Guizhou, and Chongqing dominated by Chongqing and Hunan. In the future, China's blockchain industry is expected to accelerate development relying on the aggregation effect.

The blockchain financial field is the most widely used

my country's blockchain industry applications are mainly distributed in finance, supply chain, traceability and hardware, accounting for nearly 65%. According to the "Blockchain Blue Book: China Blockchain Development Report (2019)", there are nearly 28,000 blockchain companies in the country. Among them, about 1,000 blockchain companies have been put into production, accounting for only 3.6%. They are mainly concentrated in developed eastern regions such as Beijing, Shanghai, Guangdong, and Zhejiang.

The market capacity of the blockchain industry is expected to reach trillions in the future

Blockchain technology is a key direction for China’s new generation of independent innovation breakthroughs in information technology, and contains huge space for innovation. In the fields of chips, big data, cloud computing and other fields, innovation activities are becoming increasingly active, and innovation elements are constantly accumulating. The application of blockchain technology in various industries continues to deepen, which will give rise to a large number of new technologies, new products, new applications, and new models.

China focuses on accelerating the transformation of its economic development model, pays more attention to the improvement of economic quality and people's living standards, and uses new generation information technology, including blockchain technology, to transform and upgrade traditional industries and enhance the quality of traditional industries. Develop quality and efficiency, and improve the level of smart social management, public services and home life.

The huge market demand in the future will bring rare development opportunities and broad development space to blockchain technology. Researchers compiled and analyzed that China’s blockchain market will maintain rapid growth, with a compound annual growth rate of 73% in market size from 2021 to 2026. The market size in 2026 will reach US$16.368 billion, and in the next 20 years, China’s blockchain market will The industry market size is expected to reach the trillion level.

—— For more data, please refer to the "China Blockchain Industry Market Foresight and Investment Strategic Planning Analysis Report" by the Qianzhan Industry Research Institute

At present, the country also strongly supports the development of blockchain technology, hoping to apply it to various fields, so now some large companies, such as Tencent, AlibabaLi, NetEase, and the Internet are all involved. It is still in the development stage, and we can look forward to it in the future

The blockchain economy cannot be simply understood as various virtual currencies. The essence of the blockchain is to solve the problem of the authenticity of information. With issues of confidentiality and non-tampering, (everyone involved is a recorder of information, and everyone is just a link in the entire information chain), it more effectively solves the issues of privacy and integrity, so the scenarios and prospects for its application are Vast and promising. (But it should not become a paradise for scammers)

IV What are the practical applications of blockchain technology in recent years

The blockchain financial field is the most widely used

my country’s blockchain industry applications are mainly distributed in finance, supply chain, traceability and hardware, accounting for nearly 65%. According to the "Blockchain Blue Book: China Blockchain Development Report (2019)", there are nearly 28,000 blockchain companies in the country. Among them, about 1,000 blockchain companies have been put into production, accounting for only 3.6%. They are mainly concentrated in developed eastern regions such as Beijing, Shanghai, Guangdong, and Zhejiang.

——For more data and analysis, please refer to the "Forward-looking Industry Research Institute" China Blockchain Industry Market Prospects and Investment Strategic Planning Analysis Report".

IV IBM launches a blockchain pilot to simplify the bank guarantee process

Technology giant IBM launched a pilot of a blockchain platform aimed at simplifying the bank guarantee process.

In a press release shared with Cointelegraph on July 3, IBM said the pilot was launched in partnership with four Australian financial services companies.

The pilot, called Lygon, is backed by IBM, Australia and New Zealand Banking Group Ltd, Commonwealth Bank, property operator Scentre Group and Australia's first bank Westpac. Starting from the 4th, the pilot group’s retail property leasing customers will have a trial run for eight weeks.

Essentially, Lygon is a blockchain-based platform that digitizes the issuance and management of bank guarantees in the retail property leasing sector. According to the release, digitizing processes will reduce the risk of fraud, reduce potential errors, and increase transparency and security.

Once the pilot is complete, Lygon plans to expand the range of digital bank guarantees it supports and start offering these guarantees to other industries. Didier Van Not, general manager of corporate and institutional banking at Westpac, said: “We have created a blockchain-based platform to digitize the bank guarantee ecosystem. The pilot will use Distributed ledger tested on real-time transactions to prove the technology is commercially viable. Digital transformation to improve customer experienceA great example. ”

So far, IBM has launched many enterprise blockchain products. Last month, Brazilian bank and financial infrastructure service provider CIP officially launched blockchain using Hyperledger Fabric in cooperation with IBM. Chain ID platform. It aims to verify digital signatures using mobile devices.

In March this year, five Japanese banks collaborated to launch a financial services infrastructure based on IBM distributed ledger technology.

VI The future development prospects of blockchain

1. Blockchain has become the forefront of global technological development and opened up a new track for international competition. Blockchain will become a new type of technology that further accelerates the development of the digital economy. Key infrastructure will lead a new round of technological and industrial changes in the world and become the "source" of technological innovation and model innovation. The world's major developed countries will further pay attention to blockchain technology, intensively introduce relevant policy plans, and increase industry Support and guide to enhance the competitiveness of the country’s blockchain technology and industry.
2. The digital currency bubble gradually cools down. As the concept of blockchain technology spreads and becomes more popular, more and more people will realize that Bitcoin is not the same as Bitcoin. In the blockchain, various air coins will be gradually eliminated, and blockchain technology innovation will return to a more rational track. Technical features such as decentralization, multi-party collaboration, and anti-calculation tampering will be highly valued by relevant industry fields, and some Blockchain applications will continue to emerge in industries with strong innovation capabilities combined with industry characteristics.

Ⅶ "Blockchain Project Development Guide" epub download and online reading, please ask for Baidu Netdisk cloud resources

"Blockchain Project Development Guide" (Narayan Prusty) e-book network disk download for free online reading

Link: https://pan.. com/s/1cqx_pWVTN0cgwqqQCLeMRg Extraction code: 4apl

Book title: Blockchain Project Development Guide

Author: Narayan Prusty

Translator: Zhu Xuantong

Douban score: 5.7

Publisher: Machinery Industry Press

Publication year: 2017-12-8

Number of pages: 198

Introduction:

Blockchain is one of the most disruptive emerging information technologies in the past decade. It is developing in a completely new way. Establish the foundation of trust, arbitration, and recording of human transaction processes. This book has 9 chapters. It first introduces basic concepts such as decentralized applications and DApps, and based on this, it explains popular DApps such as Bitcoin, Ethereum, and Hyperledger. Secondly, Based on the analysis of the working principle of Ethereum, the author introduces the writing method of smart contracts and introduces the application method of web3.js. Finally, the above knowledge is used to carry out wallet services and smart contracts.Creation of specific applications such as deployment platforms, betting apps, enterprise-level smart contracts, and alliance blockchains.

About the author:

Author: (India) Narayan Prusti Translator: Zhu Xuantong Translator: Yan Ying Translator: Dong Ning

Narayan Prusti, who created an MP3 search engine at the age of 18, is a multi-tasking developer, focusing on blockchain and JavaScript, tending to use Ethereum, Bitcoin, Super Classification, IPFS, etc. to build decentralized applications. The scalable applications he writes are widely used in startups, enterprises and government departments in India, Singapore, the United States and other countries. Narayan Prusty currently works for the Emirates National Bank’s blockchain enterprise in Dubai. He is the author of "Learning ECMAScript 6" and "Modern JavaScript Applications". Zhu Xuantong holds a master's degree from Tsinghua University and is a doctoral candidate at the Institute of Quantitative and Technical Economics of the Chinese Academy of Social Sciences, focusing on technical economics and management research. Has extensive working experience in government and international organizations. Yan Ying, Ph.D. from Fudan University, is a researcher in charge of Microsoft Research Asia and the head of Coco Blockchain China. She focuses on research on blockchain technology, big data analysis, databases and cloud computing. Dong Ning is the CEO of ChainNova, the director of the Financial Technology Research Center of the New Generation Information Technology Institute of Peking University, the former head of IT economics for IBM Greater China, and the founder of the IBM blockchain community.

Ⅷ "Blockchain Technology Guide" epub download and online reading, please ask for Baidu network disk cloud resources

"Blockchain Technology Guide" (Zou Jun ) E-book network disk download for free online reading

Link:

Password: u31i

Book title: Blockchain Technology Guide

Author: Zou Jun

Douban score: 6.4

Publisher: Machinery Industry Press

Publication year: 2016-11-1

Number of pages: 254

Content introduction:

Chapter 1-2 is the basic and introductory content, focusing on the introductory introduction to blockchain and explaining some basic concepts of blockchain . This book introduces the basic knowledge and concepts of blockchain in detail and comprehensively, analyzes the architecture, underlying implementation details and encryption technology of blockchain, and provides a comprehensive interpretation of the popular blockchain with industry application cases, frequently asked questions, etc. Technology implementation and application. Chapters 3-10 focus on the analysis of blockchain architecture and explain the key technologies of blockchain, including cryptography and consensus algorithms; provide Bitcoin development guide and Ethereum smart contract development guide; also introduce HyperLedger and discuss blockchain Common chain problems and typical solutions. Chapter 11 explores the driving force of IT development from the perspective of architectural change and provides insights into the impact of blockchain on future IT development.some prospects.

About the author:

Zou Jun is an expert in the Zhongguancun Blockchain Industry Alliance and has a doctorate in Service Contract (ServiceContract). He focuses on and practices blockchain technology and applications. He is now a researcher at Haina Cloud CTO. Formerly the chief software architect of IBM Australia's financial industry. Specialized in cloud computing, big data, and software-defined storage. A high-end foreign expert from Beijing who has published more than 20 papers in international conference journals.

Zhang Haining is the chief architect of VMware China's cloud native applications, the leader of the Harbor enterprise-level open source container registry project, and one of the earliest technical evangelists in the CloudFoundry Chinese community. He has many years of software development experience. He once served as a senior software engineer at IBM and a senior architect at Sun. Currently focusing on research and development in the fields of containers, cloud computing and blockchain.

Tang Yi, a professor at Guangzhou University and a Ph.D., focuses on network information security, distributed computing, blockchain security and applications, etc. He has developed elliptic curve cryptography software for well-known foreign security companies and won the Cryptotechnology Award. Second Prize for Progress (Provincial and Ministerial Level). He has presided over or participated in the completion of the National Science and Technology and Talent Project Fund work for many times.

Li Lei is an associate professor at Hefei University of Technology and a Ph.D. at Macquarie University. Good at data mining, social computing, and intelligent computing. He has served as a member and organizer of the program committee of IEEE international conferences for many times, and has published more than 40 papers in the fields of social computing and blockchain, which have been cited more than 350 times.

Ⅸ What do you think of the recently released "Blockchain Blue Book China Blockchain Development Report (2018)", the Truedeal project was cited as a case in the Blue Book

I took a look at this, Published by Golden Finance, this blue book is a reference for the industry. It is somewhat similar to a public opinion report. It is not an instruction manual, but it also has some guiding significance.

Ⅹ IBM Walmart applies blockchain technology to prescription drug tracking

IBM, KPMG, Merck and Walmart are joining forces with the FDA to create a proof-of-concept blockchain network. The project, linked to the U.S. Drug Supply Chain Security Act, is designed to help the FDA and other organizations in the drug supply chain develop a blockchain network to identify and track the distribution of prescription drugs.

As the blockchain famous saying goes: it builds trust when you need it most! Mark Treschuk, head of global solutions at IBM, said blockchain could provide an important new approach to further improve trust in the biopharmaceutical supply chain. Blockchain technology can not only provide an audit trail to track drugs in the supply chain, but also track who shares data and who shares it with whom, without revealing the contents of the data itself. Blockchain therefore has the potential to change the way drug data is controlled, managed, shared and acted upon throughout its lifecycle.

IBM has been committed to blockchain technology in recent yearsResearch and development, it has applications in shipping, food, banking, hard disk and other fields. In 2016, Walmart partnered with IBM to apply new food safety to its suppliers, applying blockchain technology to achieve traceability throughout the food supply chain. In addition, IBM and Maersk have formed a joint venture focusing on global trade, aiming to create a blockchain platform to serve trading partners around the world.

China is also establishing new standards for food supply chain safety, relying on the eyes of IBM, Walmart, JD.com and Tsinghua University to use blockchain technology to collect data on the origin, safety and authenticity of food.

The widespread application of blockchain technology will change people’s lives. From wearables to food, it changes people’s understanding of ordinary things. After applying blockchain, ordinary items will be redefined, and consumed items will not disappear out of thin air. Blockchain technology will make a world defined by matter. , truly becomes a digital world, and every seed that disappears on the earth will be remembered forever!