杭州世界区块链大会时间,2021杭州世界区块链大会

2021年，杭州世界区块链大会将于4月16日至18日在杭州举行，本次大会将拓展三个相关关键词，分别是：区块链技术、智能合约、去中心化财富管理。

区块链技术是一种分布式数据库技术，它在网络上保存了一个链式记录，由一系列的区块组成，每个区块都包含一些有关账户余额、交易记录等信息。每个区块都有一个唯一的哈希值，它是由上一个区块的哈希值和本区块的信息组成，因此每个区块都是独一无二的。这种技术具有去中心化、安全性、不可篡改等特点，可以用来记录财务交易、存储数据等。

智能合约是一种特殊的电子合约，它是由计算机程序控制的，可以自动执行合约条款中规定的条件和动作。智能合约可以替代传统的合约，它可以自动执行合约中规定的条件，无需人为介入，从而提高了合约的执行效率。此外，智能合约还可以支持多方合作，比如多方共同参与的金融交易，可以让双方合作更加安全、高效。

去中心化财富管理是一种新型的财富管理模式，它是基于区块链技术的一种分布式财富管理方式，它不需要任何中心化机构来管理，而是通过去中心化的方式来管理财富，这样可以更好地保护用户的财富安全。去中心化财富管理可以利用区块链技术提供分布式的财富管理服务，可以更好地保护用户的财富，避免被任何一方控制，从而更好地保护用户的隐私。

2021年杭州世界区块链大会将为参会者提供一个深入探讨区块链技术、智能合约和去中心化财富管理的平台，让参会者更加深入地了解这三个关键词，掌握更多的知识，从而更好地发挥区块链技术在金融科技领域的作用。

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A. Mars Line | Tencent Virtual Bank has obtained a Hong Kong license and is preparing a blockchain virtual bank

Mars Finance APP reported that on November 8, the Second World Blockchain Conference was held in Wuzhen. The conference focused on blockchain, digital assets, central bank digital currency, AI, 5G and other topics, and discussed the application implementation, technological frontiers, industry trends and hot topics of blockchain.

Cai Yige, general manager of Tencent's blockchain business, delivered a keynote speech on "Entering the New Era of Digital Assets" at the meeting, revealing that Tencent Virtual Bank has obtained a Hong Kong license and is preparing for a blockchain virtual bank. Banking Team.

He said that blockchain is still in the early stage of the explosion of applications. In the large-scale implementation of applications, the blockchain itself is no longer the bottleneck, but the gateway and auxiliary technology from off-chain to on-chain. is the key, which requires integration with cutting-edge technologies such as the Internet of Things and artificial intelligence.

He also mentioned that the Hong Kong government has begun to regulate digital virtual asset transactions, which has given enough attention to blockchain and digital assets, which is good for the entire industry. Currently, Tencent has digital asset practices in supply chain finance and improving the efficiency of asset and capital allocation, such as its cooperation with McDonald's in supply chain finance and Tencent's own development of blockchain electronic invoices.

B. What does blockchain bring to the metaverse?

Now, the concept of "metaverse" has become a rare concept in the blockchain encryption industry A touch of color.

Blockchain metaverse concept projects such as Axie Infinty, My Neighbor Alice, Sandbox, and Decentraland have been greatly sought after by the market. Whether it is on-chain land bidding, crypto asset prices, or the number of active users, All have created amazing growth in this weak market.

Although many of the above-mentioned Internet applications do not strictly conform to the concept of the Metaverse, the Metaverse is not only popular in the encryption circle, but is also popular in the traditional Internet circle.

In April this year, the Metaverse Google search index soared to the highest point. Domestic and foreign game companies and capital swarmed in, jointly contributing to the explosion of the "Metaverse" market. Therefore, many people also This year is called the "First Year of the Metaverse".

At the upcoming 2021 World Blockchain Conference, there will also be a dialogue between big names about the Metaverse and NFT. At that time, Yao Dajun, deputy dean of the School of Intermedia Art at the China Academy of Art, and Guosheng Several experts, including Song Jiaji, Dean of the Securities Blockchain Research Institute, Tao Rongqi, founder of Metaverse Capital, will discuss the future development opportunities of Metaverse.

C. How is Dr. Xu Gang of the blockchain doing now?

When asked about the changes since he entered the blockchain,Xu Gang said: "It makes me busier, and communicating and learning with people makes me younger." At the same time, he also said that the blockchain industry is more challenging and requires full energy and keenness at all times. vision, but there will also be more sense of accomplishment and gain. Therefore, when asked about his experience in decompressing, Xu Gang told the author to "think independently". He believes that whether it is through listening to music, playing games, traveling, vacationing, etc., the ultimate goal is to calm down and calm down everything. Problems can be solved easily. Therefore, facing difficulties with meditation and a smile is the best way to solve them.
Those who accomplished great things in ancient times not only had extraordinary talents, but also had perseverance. Although the chain and currency circles are still in a state of panic, throughout the interview process, Xu Gang still showed his firm confidence in the future of blockchain, because he firmly believes that today's blockchain will be like the original Internet. It will transform from an era that everyone doubts to an era that everyone can't leave, and it will penetrate into every aspect of people's lives. As the saying goes, "It's hard work but you can only find gold after blowing all the sand."

D. Blockchain can be defined

On March 12, 2018, the Hangzhou Municipal Science and Technology Commission, Hangzhou Financial Affairs Office, Xiaoshan District People’s Government, The 2nd All Things Growth Conference, co-sponsored by the Hangzhou Daily Newspaper Group and organized by the Hangzhou Venture Capital Association and Hangzhou Bank, was held in the press conference hall of the Hangzhou International Expo Center. Babbitt and Bytom founder Chang Chai made the " The future can be predicted and blockchain can be defined" keynote speech.
The following is the content of the speech:
Good morning everyone, I am very happy to be invited to do such a sharing. The theme I shared is "The future can be predicted and blockchain can be defined."
I used to be a science fiction writer and wrote some science fiction novels in college. At that time, science fiction was still a very niche group and very few people read science fiction novels. Later, I had a post that is now very popular. In 2011, a college student asked on Zhihu: If you have 6,000 yuan for investment and financial management, what advice do you have? The advice I gave him at that time was to buy Bitcoin. . Now it seems that this is a piece of advice worth 20 million. Of course, it is a sad story because the subject did not buy Bitcoin in the end. It is also a sad story for me, because many people in the novel I wrote I haven’t read it, but this advice is often mentioned. In recent years, people have been sending me private messages asking me which coins to buy. However, I am not an expert in investment and financial management. Our company is engaged in blockchain.
Babit established the website in 2011 and established the company in 2014, so we may be the first batch of blockchain companies in China. On what basis do we judge that blockchain technology may be popularized or survive in the future?
This would like to mention a science fiction novel I once wrote in college called "The Art of Slaying Dragons". The computer-themed novel was written in 2007. It tells the story of how hackers can completely exploit the huge amount of computing resources on the Internet in the cloud era.After the novel was published, it was criticized by many readers. They thought that the novel seemed unreal and questioned that the hacker's ability was beyond ordinary people's imagination.
But now it seems that this novel is not an exaggeration at all. Why? Because in the cloud era, the abilities between people will be disproportionately amplified. In reality, the abilities between people may be a kind of The normal distribution is just like a person's height and weight, but on the Internet, people's ability and influence will be disproportionately amplified. It is a combination of the Matthew effect + the long tail effect.
The core ideas of this novel are two points. The first point is that cloud computing will amplify people's abilities, and the improvement of computing power will amplify people's abilities. The second point is that computing is power. So when a new thing like Bitcoin comes out, it seems that the world written in my novel is becoming a reality. When Bitcoin was introduced to China from 2008 to 2010, many people had already heard of Bitcoin, but did not pay attention to it. In fact, to understand a thing like blockchain, some knowledge background is needed.
In addition, I would like to introduce a book, which is "Out of Control" written by Kevin Kelly. This book was written in the 1990s, but this book is very prophetic. One of its chapters introduces the cryptocurrency Pioneers, but these pioneers later became martyrs, what was the reason for their failure? In fact, blockchain needs to be based on three core technologies, and these three technologies are gradually maturing. The first technology is asymmetric encryption. In 1985, elliptic curve function encryption was already very mature, but unfortunately it was implemented in a centralized way. What are the risks of centralization? That is, when issuance If the currency company collapses or the founder is arrested, or the central server is attacked, it will cause the system to collapse, so it failed later. In 2000, someone began to introduce peer-to-peer technology into cryptocurrency for the first time, taking the lead in realizing distributed cryptocurrency. However, it also failed later. The reason is very simple, that is, there is no way to find a way to solve double payment (the same money is used). twice). It was not until 1997 that Adam Baker proposed proof of work. In 2004, Halfini expanded this technology into a reusable proof of work, so the 2008 Bitcoin white paper was successfully published.
And the carefully designed technical solutions in Bitcoin later seemed to be very advanced. For example, in 2014, Snowden revealed that elliptic curve function encryption is unsafe because the US National Security Agency has set up a backdoor in this encryption standard, giving the NSA an unknown method to weaken this curve. , at that time many people exclaimed that Bitcoin was dead and that the system might collapse, but later Satoshi Nakamoto did not use the encryption standard promulgated by the National Security Agency, but used a very rare curve.
To give another example, after hashing twice, a quantum computer cannot threaten the Bitcoin address and cannot decipher the Bitcoin private key from the address. What’s even more interesting is that Satoshi Nakamoto also usedA change mechanism is such a weird transaction method. The change mechanism is that the remaining balance of each transaction is transferred to a new address. Now it seems that this is actually done to prevent quantum computers, because Bitcoin transactions only have Its public key will be exposed on the blockchain during the transaction. You only need to transfer the remaining money to a new address during each transaction. In fact, your public key will not be exposed on the blockchain. on the chain.
So judging from so many details, it can be said that Satoshi Nakamoto is a bit like a person who is extremely careful, so many people think that he is not a person, but an organization.
I just mentioned why the proof-of-work mechanism was introduced to the blockchain and Bitcoin, and this cryptocurrency was successful? Because the proof-of-work mechanism is actually hash calculation. Why is calculation so important to the blockchain? ?I can give a very easy-to-understand proof through such a table.
This table shows that the real world and the digital world are actually in a mirror relationship. The real world can also be called the atomic world. In the real world, things are randomly distributed and random. In the digital world, everything is generally Pseudo-random. In the real world, there are no two identical leaves. Everything on the Internet can be copied. In the real world, it is a normal distribution. In the digital world, it is a power law distribution. It is the Matthew effect + long tail effect. . In the real world, things are competitive resources, which are exclusive resources. For example, if I own a microphone or a glass of water, others cannot own it. All resources in the digital world are non-competitive resources. For example, I transfer a document to another person, but in fact, this document cannot be transferred like a book in reality, because this document may be saved infinitely in my computer or other storage media. A copy, so based on such a mirror relationship, we can ask the question, why is it so difficult to copy exactly the same thing in the real world? This question can be turned into whether you can create a perfect crystal in reality, you can create A perfect crystal can actually copy exactly the same thing, but the third law of thermodynamics tells us that if you want to create a perfect crystal, you need absolute zero, and you have to invest a huge amount of energy. In turn, through this symmetrical thinking, we can This raises the question that in the digital world, that is, on the Internet, it is very difficult to prevent something from being copied and to achieve such competitive resources. To achieve such a competitive resource, a huge amount of personnel consumption is required, which is computing. The more computing power invested, the higher the barrier against double spending, which is why computing matters.
So since the real world and the digital world have such a mirroring relationship, the blockchain can actually be understood as the reverse machine of the printing press. I like to use such a very vivid metaphor to define the blockchain as the printing press. Reverse process.
Why is the printing press so great? In fact, before the birth of the printing press, human knowledge and information were competitive resources. St.Whether it is classics or martial arts secrets, they are all competitive resources. However, after the birth of the printing press, this knowledge and information became a non-competitive resource that can be copied on a large scale, or the marginal cost of copying is almost equal to 0, so there is a future. In the information revolution, with the Internet, the Internet is actually an enhanced version of the printing press. But the problem with the Internet is that it is difficult to transfer competitive resources in the digital world. This is also the reason why some cryptocurrency pioneers failed in the 1990s. Blockchain solves this problem. It is the first to realize competitive resources on the Internet. The first competitive resource is of course Bitcoin, which is the first domino to be erected. After the first card falls, we can imagine that the second and third cards will fall as long as they have value attributes. They are all very suitable for using blockchain for registration and circulation, because the Internet is suitable for things with information attributes, so we say that the Internet is an information transmission protocol, and blockchain is a value transmission protocol. In fact, all resources with value attributes are It is very suitable to be combined with the blockchain.
So I don’t think the blockchain will replace the Internet. The blockchain itself is a parallel world of the Internet. It is to do some things that the Internet cannot do, so it may propose many business models. In my opinion, it is not It is unrealistic. For example, it combines things with information attributes and business scenarios with blockchain. In fact, I think it is not that appropriate, because scenarios with information attributes are suitable for the Internet, and only scenarios with value attributes are suitable for "blockchain." +".
Let’s further deepen the mirroring relationship between the Internet and blockchain. The carrier of the Internet is often software, and the carrier of blockchain is generally protocols. Software needs to apply for patents to establish its own patent barriers. On the contrary, with blockchain, most blockchain projects are open source, and you are very welcome to copy it. The code does not need to establish such patent barriers or moats. The main body of software development is usually a company, and the main body of blockchain development is often a community or foundation, which is a very loose organizational form. Software requires constant iterative upgrades, but iterative upgrades of protocols are very difficult, so they are generally very stable, because protocol upgrades require the approval of the consensus of the entire network, which is of course very, very difficult. That’s why there are so many Bitcoins. The software can be maintained and updated, and the protocol is that it cannot be shut down after it is started, and it runs 24 hours a day. Based on this kind of thinking, we can solve many doubts in our hearts. For example, in 10 years ago, many experts or big names in the investment community believed that although Bitcoin was a pioneer, it would not necessarily have the last laugh. How to prevent being defeated by latecomers? This is a typical Internet thinking. Internet thinking regards Bitcoin as a software. Through technological upgrades, latecomers may catch up, just like the browsers in the 1990s. Later, the early browsers were defeated by the newcomers. But in fact, Bitcoin cannot be regarded as a kind of software, but a protocol. The method of implementing this kind of blockchain is already a minimum feasible solution, and there is not much room for optimization.
Many people understand blockchain asThe fifth paradigm revolution, because it is based on the summary of technological updates in the past few decades, is that such a paradigm revolution, a leap-forward revolution, will be completed approximately every two years. The 1970s were mainframes, the 1980s were PCs, the 1990s were the Internet, the 2000s were the mobile Internet, and the blockchain was born in the 10s. The trend behind this is actually a trend of decentralization. Mainframes are used in scientific research institutes or military institutions. PCs have entered families. The Internet has entered tens of millions of people. Mobile Internet has pervaded the world. In all aspects of life, blockchain has become more decentralized, and there is no longer even a central server. There is another detail here, that is, the time of the blockchain was calculated from January 1, 1970. Why does it have such a feature? In fact, it is because many programming languages ​​are derived from Linux systems, and Linux is derived from mainframes. , so it has the imprint of such an era invisibly.
In fact, there is a deeper evolutionary law behind it, such as the three stages of asset evolution. The evolution of assets can be divided into three stages. The first stage is the confirmation of asset rights, which is the equityization of assets and the confirmation of asset rights. It can then be transferred as a whole, so it's kind of like the solid stage of the asset. The second stage is asset securitization. After securitization, the assets can be divided and transferred, and their liquidity is obviously stronger. It is a bit like the liquid stage of assets. The liquid stage also has its limitations. For example, the business requires a container. , this container is the platform for assets, and assets still cannot flow across platforms. Only after the assets are blockchainized, that is, after the assets are put on the chain, will they truly enter a gas phase, because everyone can manage assets through their own private keys, whether it is Equity, income rights, debts, intellectual property rights, etc., as long as they are assets with this value attribute, they are suitable for registration and circulation using the blockchain, so they are no longer limited by the platform, because everyone can complete it through their own wallet. The process of asset transfer does not require a centralized authority or a centralized trading place. More broadly, many people have summarized the stages of blockchain evolution. The first stage was in 2009 with Bitcoin as the Representing the stage of cryptocurrency to solve value transfer matters, it can be understood as the 1.0 of blockchain. In 2017, the era of issuing virtual assets through smart contracts emerged, represented by Ethereum, which can be understood as the 2.0 of blockchain. We believe that we will enter the third stage in 2020, using smart contracts to issue physical assets or help real assets to be put on the chain. The blockchain will eventually move away from the virtual to the real and serve the real economy. So Babbitt is doing the third stage, which is our prediction of the future development trend of the blockchain.

E. Please download the full text of "2018 Hangzhou Blockchain Industry Report" for free from Baidu Netdisk resources, thank you~

"2018 Hangzhou Blockchain Industry Report" Report》Network disk pdf latest full set download:
Link: https://pan..com/s/10pDxblhmqUhQ4y3JNBDeSw

?pwd=rzy8 Extraction code: rzy8
Introduction: In order to understand the technological innovation and application implementation of the blockchain industry in Hangzhou, promote With the development of the blockchain industry in Hangzhou, under the guidance of the leaders of the Finance Office, the Hangzhou Blockchain Technology and Application Federation organized the Shuqin Technology Blockchain Research Institute to jointly write the "2018 Hangzhou Blockchain Industry Report" Work.

In order to fully understand the situation, Hangzhou Blockchain Technology and Application Federation formed a special research team on May 28, 2018. After spending three months conducting research on nearly 30 blockchain companies in Hangzhou (nearly 20 of which were field surveys), the team mastered a large amount of first-hand information. After more than two months of writing and repeated revisions, the report was finally completed in early November.

F. How Liu Cixin, Chang Chai and Ji Shisan "crossed borders" in Wuzhen

Liu Cixin, the author of "The Three-Body Problem", confirmed to attend the World Blockchain As soon as the news of the conference (Wuzhen) came out, it immediately hit the circle of friends. The "cross-border" branch venue also attracted much attention. Fans could no longer contain their excitement and were eager to know more. Today we are going to find out and take you closer to this mysterious "cross-border".

The big names attending the "cross-border" sub-venue include:

Chang Chai

Founder of the Future Affairs Administration, CEO of the Future Affairs Administration, Guoke Co-founder of .com, science fiction author, science fiction science event host, and founder of the Asia Pacific Science Fiction Conference. A former Xinhua News Agency reporter for ten years, he is good at reporting in the field of science and technology. He has won the China Journalism Award, the American Association for the Advancement of Science Young Science Journalist Scholarship, and the Chinese Academy of Sciences Science Star Award.

On the afternoon of June 30, Chang Chai and Da Liu will have a conversation. The two Galaxy Award winners will compete with each other, so remember not to blink! Ji Shisan’s speech sharing is equally exciting. Is it as unique as his personal experience? Xiao Lei will announce his outlook for the market in the second half of the year at the scene. Will he succeed in predicting it again? At the same time, we were fortunate to have Ji Shaoting as the host. After 10 years as a media person, she transformed into a goddess in the science fiction world. The scene when she regained the microphone is worth remembering.

What kind of wonderful chemical reaction will "science fiction + blockchain" produce? Let us enter the science fiction world in the blockchain, think together, and see the future together!

G. Who is the spokesperson of the "Chinese aunt" who plays in the blockchain?

In the morning of April 25, Bitcoin rose by more than 700 US dollars or 7% in 24 hours, refreshing The highest level since March 12 is $9,580. Analysts pointed out that the entry of groups such as Chinese "aunts" may also have a certain impact on the recent rise in Bitcoin prices. Judging from recent blockchain-related conferences, the number of participants, who were mainly born in the 1990s, has been clearly felt by the number of "aunts" and "uncles".

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Second, the investment market is not very healthy. At the end of 2017, my country's elderly population over 60 years old exceeded 240 million, accounting for 17.3% of the total population. The "Healthy China 2030" Planning Outline shows that in 2015, my country's average life expectancy reached 76.34 years, will reach 77.3 years in 2020, and will reach 79.0 years in 2030. China is still rapidly aging on the road. There are more and more wealthy elderly people. With the strengthening of financial supervision, P2P and other projects cannot be purchased. It is difficult to speculate on real estate in the stock market. Money is being poured into phantom new technologies such as blockchain. field, it’s just a matter of time. If you don’t buy health care products and don’t play with blockchain, is there a better outlet for a large amount of idle funds?

Don’t demonize “Chinese aunts”, they are just shadows of this era. No matter how stupid you are when you play with the blockchain, it is still much better than a Ponzi scheme or a pyramid scheme. And what we need to reflect on is: after the teasing is over, what else can you do if you ask them to take the money?

Content comes from NetEase News

H. Has the information economy become the main engine of Hangzhou’s economic development?

On December 3, the 4th World Internet Conference The conference arrived as scheduled, where cutting-edge Internet concepts and technologies converged, and the world's attention once again focused on Zhejiang. The Internet has become infrastructure in China, changing cities and our lives. Hangzhou, as the "leader" of China's Internet, has undergone earth-shaking changes in recent years.

I. The specific time, location and activities of the 2019 Hangzhou Yunqi Conference

Hold time: September 25th - September 27th< br />Location: Yunqi Town International Convention and Exhibition Center
On September 25-27, 2019, the Alibaba Cloud Conference will be held in Yunqi Town, Hangzhou. The Cloud Conference is a global event hosted by Alibaba Group The top science and technology conference brings together the most powerful minds of the era, depicts the development trends and blueprints of new technologies, and presents a panoramic view of the booming technology ecosystem such as cloud computing, big data, and artificial intelligence.
From 2015 to 2018, the Yunqi Conference series of events has attracted more than 100,000 on-site participants and tens of millions of online participants. This year's Yunqi Conference invited many outstanding start-ups in the fields of big data, machine vision, and artificial intelligence to participate, including Megvii Technology, Wanglian Technology, Aibee, etc.

J. The World Internet Conference is held in Zhejiang, where is the venue?

The World Internet Conference is held in Zhejiang, and the venue of the conference is Expansion Hall A of the Internet Light Expo Center in Wuzhen pavilion. The World Internet Conference is held every year in Wuzhen, Zhejiang Province. It is a water town in the south of the Yangtze River with convenient transportation and is also related to big data.

1. World Internet Conference

The exhibition date of this year’s World Internet Conference is November 22nd to 24th, 2020. The exhibition location is located in Hall A of the Expansion Hall of the Internet Light Expo. The organizers of this World Internet Conference are the Cyberspace Administration of China, the Ministry of Science and Technology, and the Ministry of Industry and Information Technology., Zhejiang Provincial People's Government, and the undertaking units include Zhejiang Provincial Department of Commerce, Science and Technology Department, Communications Administration, Tongxiang Municipal People's Government and other units.

Today, the rapid development of the Internet has brought a lot of convenience to people. Equipment such as self-driving test vehicles, all-in-one fundus screening machines, and intelligent posture assessment products are constantly being used. Innovation. Dear friends, have you been to Wuzhen?