谷歌出了区块链吗是真的吗,谷歌出了区块链吗安全吗

近年来，随着区块链技术的发展，许多大型公司都开始着手研究和应用区块链技术，其中谷歌也不例外。那么，谷歌出了区块链吗？它安全吗？

首先，谷歌出了区块链吗？答案是肯定的。谷歌于2018年7月正式推出了自己的区块链产品——“谷歌链”，它是一种基于区块链技术的分布式账本，旨在帮助开发者快速构建和部署分布式应用。谷歌链的技术架构由谷歌的计算机科学家和工程师们开发，是一个完全开源的区块链技术项目，可以让开发者轻松地在其上开发去中心化的应用程序。

其次，谷歌出了区块链吗安全吗？答案是肯定的。谷歌链是一种基于区块链技术的分布式账本，具有自治性、安全性和可验证性等优点。它采用了先进的密码学技术，可以保证交易的安全性，可以防止数据被篡改和被盗取。此外，谷歌链还采用了智能合约技术，可以实现去中心化的智能合约，有效保护开发者的利益。

最后，谷歌链提供了一种可扩展的区块链技术，可以让开发者快速构建和部署分布式应用。它采用了智能合约技术、密码学技术等先进技术，可以有效保护开发者的利益，并保证交易的安全性。因此，谷歌出了区块链吗安全吗？答案是肯定的。

总之，谷歌出了区块链，它是一种基于区块链技术的分布式账本，可以让开发者快速构建和部署分布式应用。它采用了先进的密码学技术和智能合约技术，可以有效保护开发者的利益，并保证交易的安全性。

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❶ 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 . A WinterGreen Research 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.

❷ Just how big Google’s ambition is depends on how it lays out IPFS...

The mountain is majestic, standing tall and far-sighted

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The sea is vast, broad and far-reaching and can accommodate all things

Success is achieved, consensus is shared and great achievements can be achieved

Company Profile :

Shanhaida Data Storage Technology Co., Ltd. is a company focusing on IPFS Internet underlying transmission protocol + blockchain decentralized storage and data retrieval + future.
The application layer and development layer of 5G are high-bandwidth and high-speed technology-based storage companies. In the next two years, the company's business will extend to all provinces in China and all countries in Southeast Asia. The company is located in Xinzhan District, Hefei, a famous scientific and educational city in China! Xinzhan District is a national high-tech development zone. Unique location. Internet resources have obvious advantages.

As a new storage technology, IPFS is committed to changing the way traditional storage is provided and used. It is an important breakthrough for the popularization of storage applications. Currently, customers are spread across 8 provinces in China, and within three years it will cover Southeast Asia and go out of China. The company is based in Anhui, China and serves the global storage market.

In the recent IPFS official weekly report, we saw it officially announced that the Google Chrome beta version has added support for IPFS!

In fact, as early as March this year, the official weekly report of IPFS mentioned that Google Chrome has built-in support for IPFS plug-ins. Investors need not be surprised.

Google wants to expand its Internet kingdom

In July of this year, a report showed that Google Chrome currently accounts for 71% of the market share, with hundreds of millions of active users.

As the browser leader with the highest market share in the world, Google is confident that it has been updating versions, and the latest updated version is the Beta version released in early September, which is full of highlights.

Improved functions, automatic monitoring, adding password buttons... These actions all reveal Google's intention to expand its network kingdom. In this context, IPFS has once again become a beneficial technical development tool for Google!

URL scheme list, IPFS ranks first

This time, in the announcement of Google Chrome’s safe list of distributed web solutions, IPFS was included in cabal, dat, did, dweb, ethereum, hyper, ipns and ssb, and ranks first among them!

Therefore, some scholars commented: "IPFS is included in the security list of the Beta version of Google Chrome, which further illustrates the importance of IPFS in future Internet applications. We look forward to the use of IPFS in the Web3.0 era Play a greater role."

Taking stock of the greater prospects of IPFS

Currently, there are no less than dozens of browsers in the application market, and various UI modified versions of browsers are even more There are thousands of them, but most of the market share is occupied by the top ten browsers.

We noticed that among the top ten browsers, the top three browsers (Google, Firefox, and Internet Explorer in order) have announced support for and extensive use of IPFS technology!

Bill Gates also wants to get a share of IPFS

Speaking of browsers, let’s talk about Microsoft.

In June 2020, Microsoft released a beta version of the decentralized identity verification system ION, which runs on the Bitcoin blockchain and stores transaction data on IPFS.

Over the past few years, Microsoft has become increasingly prominent in open source tools and services, and has also launched ION, a standards-based decentralized identity authentication service. And now, Microsoft will distribute the protocol ION transaction data and store it on IPFS.

Since its launch in 2015, IPFS has stored nearly 30 billion files on the network. Driven by the Internet giant Microsoft, the prospects of IPFS are increasingly worth looking forward to, and applications and projects based on IPFS have been continuously developed.

The "killer" app can no longer be calm!

For example, a large number of applications based on the IPFS protocol have been developed and researched around the world, including some "killer" applications: decentralized video platforms D-tube, Bit-tube, and Ethereum-based Decentralized social platform AKASHA.

At the same time, IPFS has also been used by the German Aerospace Center for telemetry data storage.

Is Ethereum also coming to "join in the fun"?

Moreover, digital currencies such as Ethereum and EOS, as well as the data storage of IMTOKEN wallet, also use IPFS technology.

More examples of IPFS applications include:

The U.S. Library of Congress and WikiLeaks also use the IPFS network to store data;

The Canadian government has also established Ethereum browser hosted on the IPFS network;

In November 2018, the Thai government used the blockchain plus IPFS electronic voting system for the first time in the election...

< p> The influence of IPFS/Filecoin

The influence of this project definitely "does not start with Google, nor does it end with Google." It is just a technological cross-section. This cross-section allows us to clearly foresee that in the future, IPFS distributed storage will be used by more fields and enterprises!

Company business scope:

Data storage, retrieval, processing, application and technology research and development: information technology, network technology research and development: computer software and hardware development, technical consulting, technical services, technology transfer; internet information consultationConsulting; electronic engineering system technology research and development; computer network development; development of self-media, network transmission systems, databases, electronic products, and value-added telecommunications services.

❸ Forbes announced the top 50 blockchain companies, and Du Xiaoman Financial was on the list

Recently, Forbes announced the list of the top 50 global blockchain companies, including Ant Financial, Du Xiaoman Financial, and Tencent. , China Construction Bank, Foxconn and other five Chinese companies are on the list. In addition, Amazon, Google, Microsoft, Samsung, IBM, etc. were also selected for the list.

The companies on the list own the basic technologies of cryptocurrencies such as Bitcoin and apply them to accelerate business processes and improve In transparency, billions of dollars in cost savings can be realized. At the same time, the list also requires the companies on the list to have annual revenue of no less than US$1 billion, or a valuation of more than US$1 billion. For the companies on the list, blockchain technology has been truly reflected in revenue and cost savings.

Du Xiaoman Financial has explored and implemented multiple blockchain projects, one of which allows millions of ordinary Chinese users to adopt and trade cute digital puppy pets "Leitz Dogs" - these pets All are different and “live” on the blockchain. It also has a service that provides education loans, "Anxinfu", which uses blockchain technology to ensure that students consume teaching services before allocating funds. Du Xiaoman uses a variety of blockchain implementation solutions, including Hyperledger Fabric developed by IBM.

Currently, the application of blockchain technology has extended to many fields such as digital finance, Internet of Things, intelligent manufacturing, supply chain management, and digital asset transactions. At the same time, major countries around the world are accelerating the development of blockchain technology.

In October 2019, the country emphasized that blockchain should be used as an important breakthrough for independent innovation of core technologies, and clearly proposed to accelerate the development of blockchain technology and industrial innovation, and actively promote blockchain and economic and social integrated development. Some people in the industry believe that this is a new positioning of the blockchain at the top level and has been elevated to a national strategy.

Among the large domestic Internet companies, Duxiaoman Financial is at the forefront in accumulating and implementing blockchain technology.

In addition to the projects on the list, Duxiaoman Finance is also actively innovating in the fields of distributed finance. The distributed finance white paper released in 2019 was the first in the industry to propose reference technologies for distributed finance. architecture. In the field of consumer finance, Duxiaoman Finance, as a pioneer, launched the blockchain ABS (asset securitization) project to solve the problem of trust in the authenticity of the underlying assets of all parties to the transaction.

In 2017, Du Xiaoman Financial jointly issued the first domestic ABS project supported by blockchain technology with partners such as Baiqian Leasing and Huaneng Trust. The issuance scale was 424 million yuan. This was the first domestic ABS project. Using blockchain technology as the underlying technical support, the project realized ABS’s “real assets”; in the same year, it also released the “Network-Chang’an Xinsheng-"Tianfeng 2017 First Phase Asset Support Special Plan" means the launch of China's first exchange-based asset securitization product based on blockchain technology, and it is also the product with the lowest issuance interest rate in the current period.

The above projects It was recognized by the academic community for two consecutive years in 2018 and 2019, and was selected into the case library of Peking University Guanghua School of Management, becoming the school's first classroom teaching case based on blockchain technology; it won the "Harvard Business Review" 2019 " "Excellent Practice Award".

"Youqianhua" is a credit service brand under Duxiaoman Financial (formerly Internet Finance). It is a big brand, reliable, low interest rate and trustworthy. It provides personal consumption for the public. Credit services, create innovative consumer credit models, inherit the technological genes of the Internet, and use artificial intelligence and big data risk control technology to provide users with convenient, fast and secure Internet credit services.

❹ Why Google wants to build its own blockchain

Google builds its own blockchain because it naturally believes that blockchain is the development trend of the times, and only by grasping the trend can we remain invincible.
1. Blockchain is not just Bitcoin
Nowadays, Bitcoin seems to have been hacked, so people are not optimistic about blockchain.

In fact, blockchain It is not the same as Bitcoin, the first application of blockchain. Although Bitcoin is a product of blockchain technology, it has strong financial properties and needs to be discussed separately.
2. Heat Death of the Universe: The trend of blockchain

What we need to really judge now is whether blockchain as a whole is a technological trend? In addition to understanding the role of blockchain in various industries today , we should also know that judging trends, especially big trends, does not necessarily depend on how beneficial it is to mankind, but should be viewed from a broader perspective.

From the perspective of the universe From a perspective, the final trend state of the universe is called heat death. In that state, the energy everywhere is equal, there is no more energy flow, and the universe becomes a dead place. It's cruel to say, but that's it Possible future.

In order to achieve such a state, the universe has adopted various means, including allowing life to evolve. The evolution of life, to a certain extent, is a reaction to the heat engine, making things from nothing The ordered state becomes an ordered and more organized state, and such a state itself, not only cannot offset heat death, but also accelerates the generation of heat death, because the generation of life itself requires a large amount of energy.
< br /> If we look at the evolutionary history of life, we will find that life has developed from single-cell bodies to complex living organizations like humans, and its energy consumption trend is increasing, and energy consumption is the catalyst for the production of thermal agents. and important thrust.

Judging from the current application of blockchain technology, theoreticalGoing to the blockchain requires more energy. This is actually in line with the heat death trend of the universe. From a macro trend, the entire blockchain technology should be better developed.
3. Google’s precise grasp of trends

Coupled with Google’s precise grasp of trends, Google is involved in driverless technology, big data, and artificial intelligence. Therefore, it is imperative for Google to create its own blockchain. Because he also needs to accurately grasp the trend and use this to ensure his status as a giant.

Blockchain is relatively secure and effective in storing and retrieving business-critical data and content, making many companies flock to it. At the same time, enterprises will also be worried about the risk of having only one company manage their critical data and content. Therefore, more and more enterprises are advocating the decentralization of blockchain in order to effectively control the potential risks of data management. Precisely because online services on blockchain platforms continue to grow, technology giants like Google are feeling the threat of blockchain to traditional Internet businesses. Under this wave, if Google cannot defeat it, it will naturally choose to join. into it.

In the past ten years, it is difficult to imagine that Google would miss even a revolutionary technology. Cloud computing, neural networks, big data, artificial intelligence, augmented reality, self-driving cars, machine learning, and more—all are included in the company's designs and even applications. When it comes to blockchain, Google seems to be equally decisive.

CBInsights pointed out that Google has become the second largest corporate investor in the blockchain field, and its six investments cover a variety of private enterprise services (LedgerX) and commercial services. One of the possible reasons is that Google may want to profit from equity investments in blockchain startups while observing the development prospects of this industry.

Another potential reason for Google’s investment in blockchain may be its desire to integrate blockchain to enhance its own business processes. This judgment has received some support, because Google has recently begun to develop blockchain-based cloud services.

It is expected that this new solution will not only provide a high level of security protection for personal data stored on cloud servers, but also help Google gain advantages over other companies that have already invested in the blockchain field. Comparative advantages of start-ups. In any case, as long as personal data may intersect with cryptocurrency, Google will never miss such an opportunity. Especially considering that most Internet users are now aware of the pseudo-anonymity of the Bitcoin and Ethereum blockchains, that all transactions and initiators can be tracked in the system, and that wallets are susceptible to third-party access, etc. Question, Google is definitely expected to use its late-mover advantage to gain a foothold in this field.

Currently, anonymous cryptocurrencies such as Zcash and MoneroThe distributed ledger used by the currency has also been sanctioned in several U.S. states, and regulators have viewed the originally privacy-oriented cryptocurrency as a powerful money laundering tool and even linked it to terrorist activities. Before talking about their own blockchain deployment plans, major Internet giants should first find the core problem—a challenge that cannot be solved without using blockchain. With this in mind, using blockchain to protect users’ personal data doesn’t seem feasible.

Related experiments may affect Google Adwords contextual advertising services. The advertising market has been one of the most dynamic growth industries in the past decade, and companies are currently competing for customers on the Internet. Clicks, pageviews and potential customers have become unavoidable and important parameters in any company's marketing activities. However, nowadays we often hear the claim that online marketing is becoming too ineffective. Considering the huge corporate advertising investment, the cost of attracting a user may have been as high as $6. Google and Facebook are monopolies in this field, accounting for 72% of the overall share - which also explains why both parties do not want to change the premises that have achieved their own advantages.

However, advertisers hoping to get price benefits may prioritize blockchain ad networks - and Google should continue to hold its own in this regard.

For example, Brandon Eich, the creator of the famous web browser Mozilla Firefox, announced his new project Brave. In this project, users can use the internal cryptocurrency to view highly relevant and interesting advertising content. Another example of using blockchain technology to distribute existing Google services comes from the start-up Ubex, which provides services to directly connect advertisers with website administrators to provide more attractive promotional conditions in a fully automated manner. The technology promises to be a panacea for monopolies and spam, with neural networks analyzing user behavior, gathering personal preferences and reducing the number of ads shown. According to the founder of Ubex, by combining blockchain, artificial intelligence, and the pay-for-results principle, the company will liberate the Internet from spam ads and achieve close to 100% customer conversion rates. This means that in the future, users will only see one ad in a single web session, and its content will be more relevant to their current purchase intentions.

In addition, analysis will also usher in new optimization methods. Currently, analytics are still entirely based on ad column clicks and conversion calculations. Once the new program goes live, the Internet community will no longer be harassed by intrusive spam, and brand owners will be able to save money by only undertaking high-success customer promotions. By introducing this kind of service to a multi-billion dollar market, the entire field is expected to achieve a major transformation similar to the Ethereum blockchain from "proof of work" to "proof of stake". However, does Google agree with this?A payment model for targeted advertising that can only be achieved using blockchain? While the answer is unclear, Google will have no other choice if it wants to stay ahead in advertising. Artem Chestnov, founder of Ubex, said in an interview:

“Google will move to the blockchain field faster than we imagined, even faster than Google’s management realizes. "They have no choice at all because they are currently lagging behind and will have to catch up through a series of serious acquisition efforts. We will see billions of dollars of M&A activity from multiple technology giants next year."

In addition, due to the ban on initial coin offerings and cryptocurrency advertising, the online advertising market may lose up to 74% of revenue starting from June this year. VItalik Buterin also recently conducted a poll to understand whether people would take this as a hint that "Google Square" is about to come out if he leaves Ethereum and switches to Google.

As a technical practitioner, let me share my opinion.

1. As a well-known popular technology, Google, as a technology giant, will definitely study it

2. As a technology giant, it will definitely build its own
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3. At present, it is still in the stage of exploring implementation scenarios and technical experiments.

In other words, even technology giants have not found more application scenarios for blockchain

As an innovation leader, Google will not miss web3

1. Google has its own understanding of web3. Web3 cannot only have PoW, its value lies more in distributed computing and storage

2. Google has its own joint computing project, including learning , analysis, differential, etc., which are very suitable for decentralized network-wide consensus, and Google is the most powerful in designing this consensus algorithm

3. Google is a data-driven company, and compliance reasons , it does not want to own data, but to use data, so the return of data rights advocated by web3 to individuals is in line with Google's interests and can greatly increase the scope of data utilization

4. web3 is the next generation Internet that everyone is optimistic about , Google also wants to repeat the successful process of the first two generations and once again connect its business to web3

5. The current public chain relies too much on finance-centered consensus such as Pow and PoS, and is not suitable Google’s computing network must be developed by itself

6. Filecoin was once the only project in the web3 world that had the opportunity to become another Google and AWS project.At this time, the infrastructure and PoW chain converge, unable to carry actual applications.

❺ Set sail! Learn Token allows you to take off and get in touch with the new trend of blockchain

With the skyrocketing value of a series of digital currencies represented by Bitcoin around 2017, blockchain technology has quickly become a It has become one of the most popular cutting-edge technologies; at the same time, as blockchain technology becomes more and more popular, its application potential outside the field of digital currency issuance and operation has also been deeply explored. In the past two years, in-depth application development in other scientific and technological fields based on blockchain technology has emerged one after another, injecting unprecedented imagination space into the progress of scientific and technological society.

Learn Token (hereinafter referred to as LEARN) is developed by top multinational companies such as Google and Intel. The professional operation team of the Singapore Stock Exchange is responsible for daily operations and management; Blockchain technology innovates the existing IoT technology form, and uses the excellent properties of blockchain technology such as decentralized operation, non-tamperable information, and efficient information circulation to solve a series of pain points faced by traditional IoT technology, and then use "new" things Internet technology is used to reshape today’s digital world.

LEARN will build itself into a global pan-business information management system and trading platform that is widely used in e-commerce, supply chain, logistics, AI development and other industry market conditions. By establishing the technical logic of the underlying blockchain architecture and smart business model contracts, global product and service suppliers, logistics companies and other intermediate transaction links and consumers are seamlessly connected to create commodity information exchange and trade in the blockchain world. The system leads to the arrival of a new lifestyle, and uses LEARN tokens to bridge the gap between various aspects of the market and solve many pain points in the current commercial market. It is a global application scenario and a majestic ideal under the guidance of the latest top-level architectural concepts of the blockchain. Blueprint for blockchain projects.

On the basis of deep involvement in the consumer market, LEARN will vigorously explore the application potential of blockchain technology in securities, utility tokens, etc., and provide more start-ups across the country and even the world. A good financing and development environment, and unremitting efforts to promote the goal of global economic integration.

The application scenarios of LEARN are very rich, covering all aspects of life such as food, clothing, housing, transportation, food, drink, and entertainment. The launch of LEARN's various payment solutions, life service solutions and public service solutions can penetrate LEARN into all aspects of people's lives. It is very simple and convenient to pay using the LEARN platform. Using LEARNToken as the medium and using the LEARN ecological trading system, a safe and fast payment model can be easily realized. By building a "reality"World - Blockchain World - Real World" bridge, establishing application scenarios that are mainly online and supplemented by offline. Online, all merchants can settle in, LEARN guarantees to be permanently free, including online celebrity live broadcasts, Merchants in various industries. Use LEARN for payment throughout the platform. Merchants are free of mortgage and inventory, and all services are provided by the platform; offline, covering various industries such as tourism, entertainment, hotels, catering, etc. Build application scenarios.

In order to encourage consumers to actively use the LEARN platform for e-commerce consumption and electronic payment, LEARN will provide certain point rewards based on the consumption amount to consumers who use the official mall. In addition, it will also launch various incidental Small tasks with point rewards will further increase the user stickiness of the mall. After the points reach a certain amount, they can be converted into Bitcoins and directly enter the public chain for circulation and value-added.

LEARN plans to lead a number of member institutions , is committed to building a world-class distributed payment system and continuously promoting the formation of the blockchain ecosystem. As the world's first and world-leading payment model, LEARN helps solve the security issues of mobile payments and the inefficiency of credit card payments. It has also made a unique contribution to the open source and application of blockchain technology in the payment field. LEARN is based on the industry’s special business needs, existing technical levels, laws and regulations, and other requirements or conditions, from business security, performance, Cost, policy, technical feasibility, operation and maintenance and governance have been comprehensively optimized, providing opportunities for future development.

Abel Bush

MIT Master of Computer Science, he won many scholarships at all levels while in school. After graduation, he directly became the leader of Google’s blockchain application development team. He has been committed to the in-depth development and practical promotion of blockchain technology for many years, and is the top leader in the industry. An engineer in the blockchain field, he led the construction of the underlying architecture of the LEARN platform.

Kevin Louis

Winner of a double degree in computer science and management from the University of California, Berkeley, Facebook User Security Service Center Director. Working at Facebook made him fully aware of the importance of data security, and he actively used blockchain applications to achieve safe and efficient transmission of massive data.

Sunny Tommy

Graduated from Stanford University. He has extensive experience in developing software, web application idioms and automation, spanning multiple fields and programming languages. He has a strong interest in learning and using new technologies. He has worked for a long time at Google, etc. Multinational companies are responsible for the research and application of blockchain technology.

Brynden Tully

Graduated from Oxford University, the UK’s top actuary, provides various types of data consulting services to many EU economic affairs organizations. He is currently the technical director of William Hill in the Asia-Pacific region. He is the strongest supporter of online gambling and blockchain gambling in the gaming industry. In recent years To actively participate in international blockchain research and development and cooperation, it can provide LEARN with massive international network resources.

Baier Blomfield

Graduated from Moscow State University, he is a full-line developer with comprehensive talents and has rich experience in the fields of software development, web application idioms and automation. Across multiple domains and programming languages. He has a strong interest in learning and using new technologies, and tries to apply them to some novel cases. He has also built responsive lookahead applications, APls and other systems.

Strategic Cooperation Unit

❻ What exactly is blockchain and what is the use of blockchain?

Recently, the word "blockchain" has been on the Internet It appears very frequently. It can be seen that recently everyone is very interested in the word "blockchain". So what is "blockchain", how to explain "blockchain", and "blockchain" is a What chain?

If we want to know what “blockchain” is, we must first start with Satoshi Nakamoto.

In November 2008, Satoshi Nakamoto posted a research report on a secret cryptography review group, describing his new idea for electronic currency-Satoshi Nakamoto proposed : "I believe there is a currency that doesn't rely on credit, and I can't stop myself from thinking about it." Bitcoin was born.

Although we still don’t know who Satoshi Nakamoto is, we all know the famous Bitcoin and the recently popular word “blockchain”.

In professional terms, blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc.

In the original English version of the Bitcoin white paper [2], the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper [3], chain of blocks was translated into blockchain.

What does it mean in human terms? In layman's terms, blockchain is a decentralized distributed ledger database.

Decentralization means removing the original data center.

Here is an example of decentralization: Alibaba’s servers support Alibaba’s daily data operations, including the Double Eleven that just passed. We were able to smoothly carry out flash sales of goods at zero o’clock. Largely thanks to the support of Alibaba servers.

All data generated by Alibaba’s daily activities are recorded on the server. So what will happen if Alibaba’s server encounters an accident? (For example, Alibaba's server was hit by a meteorite, causing the server to be damaged)

After the server is paralyzed, Alibaba's data will naturally be unable to be restored in time, which will result in Alibaba being unable to maintain daily operations in the short term. operations.

However, after adopting blockchain technology, a piece of data generated by Alibaba due to daily business will not only be recorded on Alibaba’s servers, but also on various servers around the world such as the Internet and Google. , In this way, even if Alibaba's servers encounter an accident, it will still not affect Alibaba's operation. The data generated by Alibaba's daily activities will still be recorded on various servers around the world. This is the advantage and benefit brought by blockchain technology.

In other words, Ali's data was only recorded in Ali's server, and Ali's server was the center. Now every server in the world is synchronously recording the business that Ali has done, and Ali's server is the center. It is no longer the only center, this step achieves decentralization. The behavior of servers around the world recording Alibaba data simultaneously is called distributed accounting.

Now that we know what blockchain means, what kind of boundaries can blockchain bring to our lives? What fields may blockchain be used in in the future?

1. Blockchain technology is applied in the medical and health field. For example, Xiao Zhang’s family has a history of hereditary red-green color blindness. Xiao Zhang once went to Hospital A and had his red-green color blindness checked. Now Xiao Zhang is in City B and went to Hospital B for treatment. Now Hospital B can directly treat him in his own hospital. Xiao Zhang’s previous medical treatment status was found in the database, so Hospital B no longer needs to conduct repeated examinations on Xiao Zhang. This greatly saves medical resources for the hospital and saves medical expenses for repeated examinations for Xiao Zhang.

2. Blockchain technology is applied in the field of food safety. Nowadays, everyone is paying attention to food safety, and blockchain technology is applied to the field of food safety to carry out food traceability. First, we can label each vegetable and fruit with its own label, and then record the growth, maturity, pests and diseases of the vegetables and fruits in this label. The data in this tag can be simultaneously recorded in various data centers around the world through blockchain technology.

On the one hand, when people buy vegetables, they can directly check the growth status of the vegetables. On the other hand, when our country imports and exports vegetables, we can directly check the status of the imported and exported products. No more quarantine required.

❼ Google is forming a new business unit to focus on areas such as blockchain and digital currency payments

Tencent Technology News On January 20, according to foreign media reports, Google is forming a blockchain and related technologies, led by a newly appointed executive.

It is reported that Shivakumar Venkataraman, Google's vice president of engineering, is currently running a department focused on "blockchain and other next-generation distributed computing and data storage technologies."

So far, Google has provided some cloud services to companies working on blockchain technology. But other than that, Google has not invested a lot of resources in expanding its business in blockchain and other related fields like competitors such as Meta or Twitter.

However, Google’s attitude seems to have changed recently.

On the same day, news broke that Google was reorganizing its payments business, appointing former PayPal executives to form a new one months after it stopped building a digital banking-like service. Department, and formulated a new business development route for industry partners.

Google Commerce President Bill Reddy said in an interview with foreign media that Google hopes to expand the application scope of its payment business to meet the needs of more consumers.

Bill Ready mentioned Google’s cryptocurrency ties in the interview, highlighting Google’s relationship with blockchain companies Coinbase and BitPay, which announced last year that their customers could Connect your own cryptocurrency debit card to the Google Pay app, and more use cases like this will appear in the future.

❽ Getting started with blockchain technology, which programming languages ​​are involved

Go language

Go language (Golang) is a brand-new programming language launched by Google in 2009 Language that can reduce the complexity of code without sacrificing application performance. Rob Pike, chief software engineer at Google, said: "We developed Go because the difficulty of software development over the past 10 years or so has been frustrating."

In addition to Bitcoin being developed in C, At present, the clients of most mainstream workshops are developed with Go language, which is enough to show the status of Go language in the entire blockchain industry.

C

C further expands and improves the C language and is an object-oriented programming language. C runs on a variety of platforms, such as Windows, MAC operating systems, and various versions of UNIX. C is a very widely used computer programming language. It is a general programming language that supports multiple programming patterns, such as procedural programming, data abstraction, object-oriented programming, generic programming, and design patterns.

Most blockchain companies choose to use C to write the bottom layer of the blockchain. The most famous ones are Bitcoin, Ripple, etc., which mainly reflect strong computation.

Java

Java is different from general compiled languages ​​or interpreted languages. It first compiles the source code into bytecode, and then relies on virtual machines on various platforms to interpret and execute the bytecode, thereby achieving the cross-platform feature of "write once, run anywhere". The development of blockchain projects has obvious dependence on Java.

Others include Python, system architecture, Ethereum, Linux, hyperledger, JavaScript, etc. will be covered.

❾ The U.S. House of Representatives is investigating the four major technology giants, and blockchain may usher in greater opportunities

On October 6, the Antitrust Subcommittee of the U.S. House of Representatives issued a The Digital Economy Competition Investigation Report lists the large-scale monopoly situations used by Apple, Amazon, Facebook and Google and provides relevant solutions. According to reports, this report is based on the transcripts of 7 congressional hearings, nearly 1.3 million internal documents, submissions from 38 antitrust experts, and interviews with more than 240 market participants and former employees of the platforms under investigation.

This 449-page report describes the history and relationship between the United States and technology giants. problems faced. Among them, there is no lack of the monopoly market phenomenon that has been formed for a long time by these four companies to suppress competitors;

We know that when a company is strong enough in a certain industry, there will be tangible or Invisibly, there will be a certain monopoly phenomenon, either in technology or products. This is nothing more than maintaining its leadership position in the industry; but for the country, this phenomenon will obviously curb the innovation of other companies. and development, which is not conducive to the progress and stability of society.

We have all known for a long time that these companies have a monopoly on industry products, and this is not the first time that they have been investigated for their monopoly; and this time, 449, who was eliminated, also reported, It is obvious that they have made sufficient investigations and preparations, and have also given certain solutions; they even likened these companies' monopoly on existing industry technologies and products to the kind of monopoly giants we once saw in the era of oil tycoons and railroad tycoons. .

But for those who are engaged in blockchain, they may find a different meaning;

Apple, Amazon Although , Facebook and Google all have their own monopolized industries, they are all Internet companies, and the growth of the Internet benefited from the United States’ original split of telecommunications, railways, and even oil monopolies. Well, since the United States can forcefully break up powerful oligarchs, it is not impossible for these Internet companies to see this happen in the future. So, to do this, we need toNew technologies must emerge to influence and change the Internet industry; and as a decentralized blockchain, it is likely to shoulder this important task.

Taking social media as an example, blockchain-based social media is likely to benefit from the confrontation with Facebook. According to statistics, since its inception in 2004, Facebook has repeatedly prevented the leakage of personal information; in 2006, 2007, 2008, 2010, and 2018, this situation has occurred again and again. For the majority of users, they may have already felt If there is any alternative, I believe they will resolutely choose to change;

And decentralization Social networking may really be able to do this; if a social media, personal information can be encrypted using blockchain technology, and then the individual saves the private key, and all requests to retrieve personal information require the individual's permission, then this This situation can be greatly improved; this is of great significance to the majority of users who pay more and more attention to the protection of personal information.

After the release of Netflix's new documentary titled "The Social Dilemma," many users are reconsidering the need to have accounts like Facebook and Instagram. "The Social Dilemma" has been hailed by the media as "the most important documentary of our time". It reveals how technology companies influence national elections, "track" billions of people on the Internet, serve them targeted ads, and come up with ideas. Features that lead to their addiction. As young people in the new era, they may hate the impact of this situation on themselves;

Seek to make Internet intermediaries more neutral and open, and to separate them from those who can use their accumulated The control of information by powerful third parties for their own purposes seems to be a fairly clear use case for turning to apps and websites that are decentralized in nature. In other words, the kind of infrastructure that the blockchain community has built over the past decade.

Blockchain technology has decentralized characteristics; after years of research and development, DAPPs and decentralized social platforms using this technology have emerged, such as VOICE , a decentralized content platform, or even a decentralized retail market or the use of blockchain in products for traceability or product ownership verification, etc.; what I believe is that with the improvement of the blockchain industry infrastructure, then Most of the technologies or industrial applications related to the Internet will appear on the blockchain;

In this process , may experience a complete explosion from prosperity to chaos to application, and then emergeThe process of phenomenal application will eventually return to the monopoly situation; perhaps this is the development process of society, there are great similarities; at the same time, in a few years, there will be a new technology to break this monopoly, Create new technologies and application forms; however, there is no doubt that the next long period of time will belong to the era of blockchain, and we should not miss it.

❿ 10,000 years of work now only takes 200 seconds, and the lifelong enemy of blockchain technology has appeared

Google has announced that it has developed the world’s most powerful quantum computer. This means that a quantum computer can complete a calculation that took 10,000 years to complete in only 200 seconds. Not only that, quantum computing will also have an impact on the security of the blockchain. Traditional block encryption technology will be hit by the dimensionality reduction of quantum computing in the future.

Quantum computing is a computer technology developed based on quantum theory. Quantum computers follow the laws of physics. They can assume multiple states at the same time and use all possible calculation arrangements to perform tasks. Therefore, when processing data Capacity has been greatly improved.

Traditional computer theory is based on the existing binary calculation method. Although the time for each transistor to select 0 or 1 can now be measured to one billionth of a second, the speed of these devices switching states is limited. As we develop towards smaller and faster integrated circuits, humans have reached the physical limits of these materials. It is not impossible to continue to improve computer performance from this aspect, but the costs and benefits of doing so are not cost-effective. .

Quantum computing tries to solve this problem from another angle. In quantum computers, the positive and negative charges of elemental particles can be expressed into 0 or 1, these particles are called qubits, and their properties and behavior form the basis of quantum computing.

Quantum computing uses the two most important principles of quantum physics, namely the principle of quantum superposition and the principle of quantum entanglement. The superposition principle imagines a quantum particle as a particle in a magnetic field. The spin state of the particle can be the same as the field of the spin-up state, or it can be opposite to the field of the spin-down state. According to quantum laws, when these particles enter a superposition state, it can complete the superposition on the basis of taking 0 or 1, which will cause the value it represents to change. In summary, the principle of superposition divides particles into two parts, one part takes 0 and the other part takes 1. For example, the superposition of a part 0 and five 1's will produce 5. The principle of entanglement means that particles interacting at a certain point can become entangled together in pairs. When we know the spin state of one of the particles, we can infer the other particle of the same pair from the opposite direction. And regardless of the distance between the involved particles, they can interact instantaneously. The principle of entanglement means that particles appearing in the same pair will interact. This interaction has nothing to do with the distance between the particles.close.

Quantum superposition and quantum entanglement give quantum computing powerful computing power. The two storage units of an ordinary computer can only store Any of the four binary numbers (00, 01, 10, and 11), and a quantum computer can store these four values ​​simultaneously when it has two storage units. If you add more quantum units, the capacity of the computer will expand exponentially.

The encryption method of blockchain technology relies on password pairs, namely private keys and public keys. The public key can be calculated from the counterpart of the private key, but the private key cannot be deduced in reverse. Quantum computers can achieve this by crossing orders of magnitude, which is to use the public key to crack the private key, and ultimately break the entire encryption system.

However, existing quantum computers cannot yet fully reach this level. Google’s quantum computer currently has 53 qubits, and to have an impact on blockchain technology, at least 1,500 qubits are needed. can be completed. But at least in theory, quantum computing can threaten blockchain technology.

However, scaling up quantum computers is not easy. Although the Shor algorithm can crack the private key through the public key, this is not expected to happen in the past ten years because it is very difficult for the current technology to expand 30 times from the existing quantum computer. However, science Progress will accelerate this day.

Although quantum computing will severely defeat traditional blockchain encryption technology, it will also bring about new cryptographic systems. That is quantum cryptography. Quantum cryptography uses the knowledge of physics to ensure that information will not be leaked without knowing the sender and receiver of the information. Quantum cryptography is different from traditional cryptography systems in that it relies more on physics than mathematics, which is the fundamental reason for its higher security.

In essence, the basis of quantum cryptography is to use individual particles and their inherent quantum properties to develop an unbreakable cryptographic system. Without interference, any form of quantum state cannot be Measurement. Quantum cryptography will use photons to transmit a key, and once the key is sent, it can be encoded and decoded using the same method as a normal key. The spin type of each photon represents a 1 or a 0 in binary. A string of photons will form a long string of 1s and 0s, and these strings will convey information. According to physical theory, when a quantum code is correctly constructed, no one can hack into the system.

In conventional encryption technology, cracking the private key requires finding the factor of a number, and this number will be composed of two huge It is composed of the product of prime numbers. If you want to calculate this result through an algorithm, you need to start counting from the day the universe was born. However, this conventional encryption techniqueThere are weaknesses, some weak keys will create loopholes, and Moore's Law continues to increase the processing power of computers. Although cracking these encryption methods is difficult, it is not impossible.

Quantum cryptography avoids these problems. The key is encrypted into a string of photons. According to the Heisenberg uncertainty principle, no one can observe the data stored in these photons without changing the photons. information. In this case, it doesn't matter what technology the invaders have, because the laws of physics are difficult to break.

Although quantum computing has unparalleled speed and can break traditional encryption technology, it is also very fragile. In the process of quantum computing, even the slightest electromagnetic wave interference can cause quantum computing to collapse. Therefore, quantum computers have very strict environmental requirements and need to be completely isolated from external interference during operation. Moreover, if an error occurs during the calculation process, the effectiveness of the entire calculation will collapse. In other words, error correction in quantum computing will cause the entire calculation system to fail.

Quantum computing’s impact on dimensionality reduction of blockchain technology is inevitable, but this is also in line with technological progress. . Therefore, whether it is blockchain encryption technology or quantum computing technology, they are worthy of careful study.