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① Is Hainan Xuanji Blockchain Technology Co., Ltd. listed?

Hainan Xuanji Blockchain Technology Co., Ltd. is listed. Hainan Xuanji Blockchain Technology Co., Ltd. (hereinafter referred to as Xuanji Technology,) is a high-tech enterprise focusing on the research and application of blockchain technology. The company is located in Haikou National High-tech Industrial Park. It is a high-tech enterprise that is a key incubator of Haikou National High-tech Zone. The company's office address is located in Haikou National High-tech Zone. Internet industry online games, cultural and sports online games R&D and production, online games operation (including network) Game wet simulation market release), etc. Xuanji Technology has a strong blockchain technology team, experienced in Weifu's blockchain and Shenzi's shareholder records. Recently, Xuanji Technology’s 4TB half-unit has entered the market launch stage. This platform is an innovative application platform based on block town technology. At the time of the historical opportunity of the Hainan Free Trade Zone (Hong Kong-Sichuan) construction, Xuanji Technology actively participated in the research and application of blockchain technology. Based on self-blocking technology, Xuanji Technology created a basic block Key Technology’s ATE platform.

② What is blockchain

In the simplest terms, blockchain is a distributed ledger.


The following is the process of our bank debit card transaction:

You can swipe the card to purchase goods in the store.

The merchant sends a statement to your bank to obtain The agreed upon amount.

Your bank will verify that you may have authorized the purchase.

The bank wires the money to the merchant.

Finally, the bank This information is recorded in its ledger.

There's a lot of technology involved here, but that's basically it. The last step is important - the bank records all the transactions made by its customers. This ledger goes all the way back to the bank The first transaction made.

This ledger is kept, maintained and regulated by the bank. You can read it in your online bank account but cannot change it. The bank has full control. If it Decide to make a change and there's nothing you can do about it.

Crucially, if a hacker has access to a bank's ledger, that could cause a lot of problems. They could change the account balance so that it looks like Some transactions never happened, etc.

This is why distributed ledgers are so cool.

Blockchain network visualization

If a bank operated on a distributed ledger, each member of the bank would have a copy of the ledger, and whenever any member of the bank made a purchase, they would tell every other member of the bank.

Each member will validate the transaction and add it to the ledger (the added records are called "blocks"). This has some important benefits, as there is no centralized authority that can manipulate records. Hackers accessing one ledger won't be a big problem because other ledgers can easily verify it.

On the other hand, it requires a lot of work. In short, the second system is blockchain (at least in financial scenarios).

As mentioned above, blockchain is a decentralized list of transactions. If I send Xiao Ming 2 Bitcoins, I send a message to everyone in the network saying "I am sending Xiao Ming 2 Bitcoins" and they all record the transaction.

The future of blockchain, how will it change our lives?

One thing that is important about blockchain is that it is a public resource and no one really owns it because everyone owns it.

Blockchain is not just science fiction. We don’t need to understand the mechanism behind this technology, but you do need to understand that it may completely change our lives in the next 20 years.

This may sound bold, but remember, 20 years ago we were browsing the Internet on Netscape, using state-of-the-art Motorola flip phones, and buying our first DVD players. At that time, if we imagined that a computer could be held in our hands and that we could buy cars, make payments, and watch movies, it would have been considered a fantasy.

Although the impact of blockchain may not be as obvious as the Internet, nor as tangible as mobile phones, blockchain will effectively solve many worries in daily life. Such as intermediaries cheating people, transaction delays, etc. In our current lives, middlemen are everywhere and we take them for granted as a part of life. If one day these intermediaries cease to exist, you will find that the world will become a different place.

Imagine that by 2040, blockchain may become a mature and widely used technology. When one day you can't live without the blockchain just like you can't live without the Internet now, you will be surprised to find that this decentralized accounting technology has simplified the complexity and become a part of your lifestyle

③ How to successfully publish a short blockchain video

Once a blockchain video is uploaded to the chain, it cannot be changed. The changes will be invalid. Once the video on Baopin.com is uploaded to the chain, it cannot be deleted.了

④ Blockchain-What is Blockchain? Jindian Bixin can understand Blockchain

Blockchain-What is Blockchain? Can Jindian Coin News understand the blockchain?

Block Pioneer animation video helps you understand what is blockchain, easy to understand

What is blockchain, does Maobei belong to blockchain?

Answer: Maobei does not belong to the blockchain, but uses blockchain technology. The characteristic of the blockchain is that everything that happens will be recorded and cannot be deleted or changed.

Blockchain, what is a block

Comprehensive interpretation of blockchain

When talking about blockchain, people always compare it with Bitcoin. On October 31, 2008, a person named "Satoshi Nakamoto" sent an email to a cryptography email group, claiming, "I have been working on a new electronic cash system, which is completely peer-to-peer and does not require Any trusted third party.” He launched a new system using Bitcoin as the transaction currency.

What is blockchain technology? What is blockchain?

Blockchain is a distributed shared accounting technology. What it wants to do is to allow all parties involved to establish a trust relationship at the technical level.

Blockchain can be roughly divided into two levels, one is the underlying technology of the blockchain; the other is the upper-layer application of the blockchain, that is, based on the transformation of the blockchain, Optimize or innovate applications.

What is the core meaning of blockchain? Our understanding is that the core meaning of blockchain is to establish data credit among participants, and to create a single transaction under clear regulations through unilateral confrontation. The ecology of all aspects jointly guarantees complete opportunities. This is a system. This establishment can end the problems before the blockchain. Before the blockchain, it was impossible to achieve new sharing when data was shared, even if it was targeted. It just gives you an interface. After the blockchain is established, the participants can realize the sharing of credit.

What are the underlying platforms of blockchain?

Answer: There are mainly the following categories:

1. Bitcoin. The earliest blockchain development was based on the Bitcoin blockchain network. Since Bitcoin is the most widely used and truly decentralized in the world, in terms of blockchain applications, Bitcoin is the most widely used blockchain in the world. A strong anchor with the greatest authority.

2. Ethereum. It can be said that apart from Bitcoin, Ethereum is currently the most eye-catching blockchain platform. Ethereum is a Turing-complete blockchain one-stop development platform that uses multiple programming languages ​​to implement protocols. It uses a client written in Go language as the default client (i.e., the method of interacting with the Ethereum network, and supports many other language client).

3. IBM HyperLedger. Also called fabric, its goal is to build a super ledger that is jointly maintained by the whole society. Fabric originated from IBM. Its original intention was to serve industrial production. IBM open sourced 44,000 lines of code, which is a great contribution and allows us to have The opportunity is so close to explore the principles of blockchain that are different from Bitcoin.

4. LISK. It is a new generation of blockchain platform that allows the development of JavaScript (Javascript technology again, engineers, take note) and distribution-based decentralized applications using an easy-to-use, full-featured ecological blockchain system.

5. Online recordingBlockchain platform. It is the research and development result of the underlying technology of the Wanglu blockchain and a basic platform capable of commercial delivery. In addition to serving the Wanglu public chain, the Wanglu blockchain platform is also the basic platform for Wanglu to create private chains and alliance chains for customers.

What is blockchain? What is blockchain for digital currencies?

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. Ledger. Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses automated scripts to A new distributed infrastructure and computing paradigm that uses smart contracts composed of code to program and manipulate data.
Nowadays, mainstream digital currencies are basically developed based on blockchain technology. Blockchain is the underlying technology of digital currency. The domestic tea-based digital currency Puyin was developed based on blockchain technology.

What is blockchain

The essence of blockchain is a decentralized accounting system, and Bitcoin is the currency that "exists in digital form" carried on this system. Blockchain is a system behind Bitcoin that consists of credit records and the settlement of credit records.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system [1].
Blockchain is an important concept of Bitcoin. The "2014-2016 Global Bitcoin Development Research Report" released by Huobi.com, Tsinghua University PBC School of Finance Internet Finance Laboratory and Sina Technology mentioned the area. Blockchain is the underlying technology and infrastructure of Bitcoin [2]. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. Blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block< br /> The evolution of blockchain is:
▪ Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0— —IFMChain, blockchain officially links mobile terminals

⑤ The road to listing | There are obstacles and a long road ahead

2018 is the tenth year of the birth of Bitcoin. This year is also the year when blockchain-related companies actively embrace the capital market. Global blockchain giant companies are setting off the first round of listing craze. In this craze,Under the tide, a large number of blockchain companies have shown intentions to go public.

The biggest role of blockchain in the securities market is to further promote the digitization of financial assets. In mature securities markets, securities realize the flow of assets in a transparent state under a regulatory environment. Generally speaking, enterprise listing refers to the issuance method of a joint-stock company to the public for the first time.

According to the relevant regulations promulgated by the China Securities Regulatory Commission, the subject qualifications that companies need to meet for listing on the main board include: the issuer should be a joint-stock company established in accordance with the law and legally existing, and the company's continuous operation period should be three years. Above, the company's registered capital has been paid in full, the company's production and operations comply with laws, administrative regulations and the company's articles of association, and comply with national industrial policies.

Generally speaking, blockchain technology is divided into three categories: private chain, alliance chain, and public chain; among them, the private chain only uses the general ledger technology of the blockchain for accounting and has exclusive access to the block. The write permission of the chain is a "centralized" blockchain; the alliance chain is a blockchain whose consensus process is controlled by pre-selected nodes, allowing everyone to read, or only limited to participants, with "Partial decentralization" characteristics; public chains, represented by Bitcoin and Ethereum, are blockchains that can be read and participated by anyone in the world, and are "completely decentralized". For public chains, information is fully disclosed and digital assets can be traded in distributed networks, but the technology is difficult and faces problems such as hard forks and small transaction sizes; private chains are essentially centralized ledgers. This chain is not much different from other distributed storage solutions, and the data security and authenticity are questionable; while the alliance chain can upload and disclose information to the authorized participants according to the project, and the permissions are easy to control, but it cannot realize the transfer of digital assets in the distributed network. trade.

We often say that the biggest risk for blockchain practitioners is "policy risk". This risk is characterized by "instability". This instability is the characteristic of every new thing. A necessary stage.

Judging from the current situation, companies listed in the blockchain field (including those that may be listed in the future or have already been listed) mainly include three categories:

The first is chip development and mining Machine sales companies, such as Canaan, Yibang International and Bitmain; second, encrypted digital currency exchanges, such as Coinbase, which has recently been rumored to be listed next year, and Huobi, which was rumored a few days ago to be listed on a backdoor listing; The third is mining companies. Thanks to low electricity bills and loose policies, most of them are North American mining companies, such as HIVE Blockchain listed on the Toronto Exchange.

Overseas, according to investorideas reports, the blockchain company Blockchain Holdings has been approved to be listed on the Canadian Securities Exchange (CSE). According to information contained on the Canadian Securities Exchange (CSE) and Bloomberg websites, the company was established in 2010 and was formerly known as Khot Infrastructure Holdings Ltd.. Its previous main business was the provision of road and bridge construction and maintenance services in Mongolia.

CSE faces all emerging growth companies, and pays more attention to the growth and prospects of companies to be listed, so the requirements for companies to be listed are lower. For example, the issuing company must have a minimum of 10 Canadian dollars. Ten thousand yuan of working capital is enough; its listing operation cycle is short; and it does not require "tangible net assets" for companies to be listed, etc. In addition, the cost of CSE is lower, both in terms of listing fees and post-listing maintenance fees.

As early as September 2013, the cryptocurrency exchange Allcoin was listed on the CSE. CSE launched an innovative securities clearing and settlement platform using blockchain technology in February 2018. The platform will enable companies to issue traditional equity and debt through tokenized securities, which will be issued through securities-type securities. Securities issuance is provided to investors, which is very consistent with the recent popularity of STO.



Fundamentally, the policy environment (including blockchain and digital currency policies and listing policies) and business compliance are a very important reason.

But from another perspective, almost all regulatory policies currently introduced in our country are aimed at illegal ICO and corresponding virtual currency transactions. As far as "blockchain" is concerned, the country has always It is releasing friendly signals and encouraging the research, development and implementation of blockchain.

Since domestic regulations have strict requirements for company listings, if blockchain projects want to be listed domestically in the future, they must work hard on their internal skills, pay attention to compliance, enhance corporate credit ratings and improve the quality of corporate governance.

⑥ How to make money with blockchain? What is blockchain technology? Looking for video teaching materials

Comprehensive interpretation of blockchain technology

For the market When it is generally believed that blockchain technology is just a technology, the blockchain team of Ant Financial Technology Lab gave a calm explanation: blockchain technology itself is not a specialized technology, but is integrated by many previous technologies. , for example, it includes P2P networks, many nodes, cryptography, and someSomething like consensus. So from this point of view, if we purely use previous technologies, blockchain technology will almost be formed in the end.

⑦ What are the leading blockchain listed companies?

As of August 11, 2021, there are a total of 251 blockchain concept stocks listed on the Shanghai and Shenzhen stock exchanges.

Let me introduce to you the industry leaders:

Yongfu Shares (300712): The company’s business now covers big data, industrial Internet, blockchain, Internet of Things, etc. related to the construction of Digital China field. Guohua Network Security (000004): The company has been actively participating in the ecological construction of the Hongmeng system, and has completed the adaptation work of the Ark compiler and the Hongmeng system, including HAP adaptation work, to ensure the compatibility and interoperability of the products of both parties. Tianyin Holdings (000829): Domestically, the company won the bid for the Beijing Welfare Lottery sales terminal (special equipment) purchase project for the first time, successfully expanding the company's business territory and further improving its industry status; in terms of foreign business, the company signed a contract with the Jamaican National Lottery Operator We have signed a service contract to provide customers with a series of solutions such as software and hardware, and at the same time negotiate specific cooperation matters with partners in the United Kingdom, South Africa, Nigeria, the Philippines and other countries.

4. Visual China (000681): The company is the first platform-based cultural technology enterprise in China to apply Internet technology to copyrighted visual content services.

5. Ping An Bank (000001): With the strategic goal of building "China's most outstanding and world-leading intelligent retail bank", it continues to adhere to "technology leadership, retail breakthroughs, and corporate excellence" Based on the twelve-character strategic policy, we will comprehensively upgrade the new three-year strategic measures and promote business development to a new level.

6. Tongda Electric (603390): In December 2019, the company stated on the interactive platform that its wholly-owned subsidiary owns the software copyright of "Blockchain Multimedia Publishing Platform V1.0".

7. Ren Zixing (300311): Positioned to provide users with Internet space data governance, network and information security, data security and data value-added solutions and services, and assist governments and operators in network and communication digital resources To manage.

8. Tianzhou Culture (300148): The company invested in Tianhe Wenlian to actively deploy blockchain-related copyright certificates, digital content storage and distribution, and cultural innovation applications to promote blockchain technology in culture and publishing. Integrated innovation and integrated applications in business fields such as education, games, etc., to help the development of the blockchain copyright industry.

9. Gaohong Shares (000851): The company is a member of the Blockchain Security Laboratory of the Ministry of Industry and Information Technology. The company's trusted software copyright protection system is based on trusted computing technology, confidential computing technology and operating system security reinforcement technology to comprehensively protect the security of target software; combined with the company's trusted servers and trusted terminals It forms an application all-in-one machine that can be applied to emerging technology application scenarios such as blockchain and AI.

10. Xichuang Medical Benefit (300078): The company has applied blockchain technology in the field of independent third-party data encryption services to protect hospital data assets and patient privacy and solve data security issues in the medical industry. The company will continue to explore the application of blockchain technology in the medical field.

11. Zhongqingbao (300052): The company builds the LeaderChain infrastructure cloud platform based on its independent research and development of LeaderChain blockchain technology, and uses the parent company Zhongqingbao’s expertise in cloud computing, artificial intelligence, Years of accumulation and outstanding advantages in big data, Internet of Things, smart cities and other fields have formed a complete end-to-end blockchain solution through the "profit chain industry/government/city".

12. Dashi Intelligence (002421): The company signed a "Strategic Cooperation Agreement" with Beijing Taiyi Cloud Technology Co., Ltd. and plans to jointly build an open and win-win "Blockchain Intelligent IoT" ecological chain .

The above are my statistics of the leading listed companies in the blockchain. I apologize for the inaccurate statistics. I hope to communicate with you more. Thank you for your attention!