坪山茶业集团区块链招聘,坪山茶业集团区块链产业园

近日，坪山茶业集团正式启动区块链招聘，并于2020年底前建立区块链产业园，以推动区块链技术的发展。

坪山茶业集团是一家以茶叶种植、加工和销售为主的综合性企业集团，主要产品包括铁观音、碧螺春、普洱茶等。坪山茶业集团致力于把茶叶行业的传统经营模式与新技术结合，推动茶叶行业的智能化、互联网化和智慧化发展。

坪山茶业集团正在积极招聘各类区块链技术人员，主要包括区块链应用开发工程师、区块链技术研究员、区块链产品经理等。这些技术人员将被集中到坪山茶业集团的区块链产业园，专注于研究和开发区块链技术，以满足坪山茶业集团在茶叶行业的智能化、互联网化和智慧化发展方面的需求。

坪山茶业集团的区块链产业园将是一个集研发、培训、营销和服务于一体的综合性园区，专注于智能茶叶行业的发展，为企业和技术人员提供一个技术创新、创业合作的平台。

坪山茶业集团正在积极推动区块链技术的发展，充分利用区块链技术的优势，推动茶叶行业的智能化、互联网化和智慧化发展，为茶叶行业的发展注入新的动力。坪山茶业集团正在积极招聘各类区块链技术人员，欢迎所有有志于投身区块链技术领域的人才加入！

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1. What is the specific workflow of blockchain?

Blockchain is a distributed database system participated by nodes. Its characteristic is that it cannot be changed. , cannot be forged, we can also understand it as an accounting system. It is an important concept of Bitcoin, a copy of the complete Bitcoin blockchain, recording every transaction in it. Through this information, we can find the value of each address at any point in history.

The blockchain is composed of a series of data blocks generated using cryptographic methods. Each block contains the hash value of the previous block, starting from the genesis block and connecting to the current block. Blocks form a block chain.

2. What are the large domestic blockchain companies?

The large domestic blockchain companies include Xinchen Technology, Yinjiang Shares, Great Wall of China, Radio and Television Express, and Hundsun Electronics wait.

1. Xinchen Technology

The company's current main business is application software development business, software and hardware system integration business and professional technical service business. In recent years, Xinchen Technology has been more bold in its attempts at innovation. The company has made certain progress in the application of new technologies such as cloud computing, big data, artificial intelligence, and blockchain in the financial industry. The domestic letter of credit business system based on blockchain technology has been successfully launched in banks and is expected to gradually become a new growth point for the company's software solutions business.

2. Yinjiang Co., Ltd.

The company mainly provides intelligent system engineering and services to users in transportation, medical, construction and other industries. "Elite" has conducted multiple follow-up reports on Yinjiang Shares. This company has made in-depth development in smart cities in recent years, covering all aspects of urban residents' lives including transportation, medical care, construction, environment, energy, education, and finance.

The company is a key software enterprise within the national planning layout, a key high-tech enterprise in the National Torch Plan, one of the top 100 enterprises in China's software business revenue, one of the top 100 high-tech enterprises in Zhejiang Province, and one of the top 100 high-tech enterprises in China according to Forbes in 2010. One of the top 100 small and medium-sized enterprises with potential, a unit with outstanding contributions to China's informatization construction in the past 30 years of reform and opening up, and one of the companies with the highest comprehensive business qualifications and the most comprehensive types in the domestic industry.

5. Hundsun Electronics

On June 1, 2016, the Financial Blockchain Cooperation Alliance was established in Shenzhen, and Hundsun Electronics was one of the 25 founding members. Use blockchain technology to implement a digital bill system based on the alliance chain.

3. Popular explanation of what blockchain is

Question 1: What is blockchain? Can you explain the principle of 10-point blockchain in plain language: Go Centralized distributed accounting system
The core of blockchain technology is that all currently participating nodes jointly maintain transactions and databases. It makes transactions based on cryptographic principles rather than trust, so that any two parties who reach an agreement can Conduct payment transactions directly without the involvement of a third party.
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Technically speaking, a block is a data structure that records transactions, reflecting the flow of funds for a transaction. The blocks of transactions that have been reached in the system are connected together to form a main chain, and all nodes participating in the calculation record the main chain or part of the main chain. A block contains the following three parts: transaction information, hash hash formed by the previous block, and random number. Transaction information is the task data carried by the block, specifically including the private keys of both parties to the transaction, the number of transactions, the digital signature of electronic currency, etc.; the hash formed by the previous block is used to connect the blocks to realize the past The order of transactions; random numbers are the core of transaction completion. All miner nodes compete to calculate the answer to the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for update, thus completing a transaction.
1.1 What is Blockchain
Blockchain (BlockChain) refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness. This technical solution mainly allows any number of nodes participating in the system to associate and generate a series of data blocks (blocks) using cryptographic methods. Each data block contains all the information exchange data of the system within a certain period of time, and generates The data fingerprint is used to verify the validity of its information and chain to the next database block.
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In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. Behind all systems there is a database, which is a big ledger. Then who will keep this ledger becomes very important. At present, it is whoever owns the system who keeps the accounts. Each bank’s account books are kept by each bank, and Alipay’s account books are kept by Alibaba. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are new transaction data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write the recorded content to the ledger, and Send the contents of the ledger during this period to all other people in the system for backup. In this way, everyone in the system has a complete ledger. Therefore, this data becomes very safe. A tamperer needs to modify more than half of the system node data at the same time to truly tamper with the data. Such tampering would be extremely costly, making it nearly impossible. For example, Bitcoin has been running for more than 7 years. Countless hackers around the world have tried to attack Bitcoin, but so far there have been no transaction errors. It can be considered that the Bitcoin blockchain has been proven to be a safe and reliable system.
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1.2 Why is there blockchain innovation?
Human beings need to communicate during their activities, and communication is based on information. In the past, information circulation was not convenient enough to satisfy market participants. There is a demand for information, so intermediaries and centers are born. This centralized system has high costs, low efficiency, value dispersion, and "trustHowever, due to technical and environmental factors, this system continued to operate for many years until the emergence of the Internet. The starting point of the first generation of the Internet was the TCP/IP protocol, which was to execute all nodes on a network The open code for peer-to-peer transmission of information in a unified format makes the basic values ​​of freedom and equality required by the global unified market programmatic, protocol-based and executable. The Internet eliminates low-value and high-cost intermediate chains and decentralizes Achieving low-cost and high-efficiency global information transmission.
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However, the first generation of the Internet did not solve the credit problem of information. Activities that can be decentralized on the Internet must be activities that do not require credit endorsement. Credit guarantee must be activities involving centralized third-party intermediaries. Therefore, Internet technology that cannot establish global credit has encountered great obstacles in its progress - people cannot use decentralized methods on the Internet. Participate in any value exchange activities. To realize value exchange, people still need third-party intermediaries based on credit (such as banks, clearing agencies, exchanges). The global centralized credit system still has high operating costs, low efficiency, and vulnerability Issues such as attacks and destruction. For example, the legal currencies of various countries have different credit values ​​and incompatible clearing systems, which adds a lot of cost to global trade.
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Therefore, what the second generation Internet must break through is: how Establish global credit in a decentralized manner? Let... >>

Question 2: What is blockchain? What does it mean in popular terms? What is China's attitude towards blockchain? What can blockchain do? Blockchain, a great technology that accompanied the birth of Bitcoin, is currently being used in the financial field to significantly reduce transaction costs and improve efficiency, which is enough to excite Wall Street. However, this is just the tip of the iceberg. , its potential application prospects are very broad, and it will subvert all aspects of our lives in the future.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. . One of the most basic characteristics of Bitcoin is decentralization. In recent months, financial giants have gradually begun to pay attention to this technology of Bitcoin, and have used this technology in non-monetary fields, such as stock trading and election voting. Etc. (1) Art Industry
Artists can use blockchain technology to declare ownership, issue numberable, 100% editions of their works, in digital form for any type of artwork. There is even a Trading market, artists can buy and sell through their websites without any intermediary services.
(2) Real estate industry
Use blockchain technology to solve various problems that everyone faces when participating in real estate , including the naming process, land registration, agency intermediary, etc.
(3),Insurance Industry
The financial industry has always been the most sensitive to advanced technology. Traditional banking and securities industry giants have been involved in the booming blockchain venture capital investment since 2014, with total global investment reaching US$1 billion within two years.
(4) P2P wallet
Personal assets can be traded through this P2P wallet in the future without going through any central institution, such as Bitcoin.
Most blockchains are in their infancy, mainly overseas. There are very few good domestic blockchain projects, so it is not recommended for any non-professionals to invest in blockchain projects. If you are very interested in blockchain technology and have a technical or financial background, it is recommended that you consider starting a business in this area. In terms of the blockchain protocol system, the lowest layer is the underlying technology of the blockchain, including the technical protocols of the blockchain, as well as some platform routing and basic algorithms; in the middle layer, some application interfaces and some credentials must be solved Issuance and verification, including some industry platform services, big data analysis, etc. This is a very rough classification, and there should be more detailed classifications; the top ones are some applications of blockchain, including finance Some applications and some applications in other aspects, the Internet of Things and so on.
Introduction to Bubi Blockchain
Bubi Blockchain has been focusing on the research and development and innovation of blockchain technology and products since its establishment. It has a number of core technologies and has achieved substantial results in many aspects. Radical innovation has resulted in a number of core technological achievements, such as: mathematically provable distributed consensus technology, fast large-scale ledger access technology, multi-chain general ledger technology that supports business expansion, and interconnection technology between heterogeneous blockchains. wait. On April 25, "Gege Points" introduced the concept of blockchain into the points system, jointly opened it up with multiple parties, issued and redeemed points, and promoted the circulation of points. Each cooperative institution can jointly participate in transaction verification, ledger storage, and real-time settlement; the third-party payment platform of the enterprise points issuer makes the entry and exit of points more flexible. Bubi has developed its own basic blockchain service platform, which has been applied in equity, supply chain, points, credit and other fields. Bubi has been committed to building an open value circulation network with decentralized trust as the core, allowing digital assets to flow freely.
A simple understanding of blockchain is a technology at the bottom of Bitcoin, which is also a peer-to-peer electronic cash system that can realize peer-to-peer value delivery. We should distinguish between Bitcoin, Bitcoin blockchain, blockchain and blockchain. Blockchain technology and other concepts. In countries with relatively developed finance in the past, finance and blockchain technology have a long history, and the legislation of digital currencies and blockchain networks is also very important. With the advent of the financial era, large financial institutions are studying blockchain technology. They have their own teams and conceptual technologies. Slowly, banks in various regions are also participating in digital currency discussions. The application and support of this technology are not only that. The influence of blockchain on enterprises is also huge. For larger domestic enterprises, Bubi Blockchain is also appliedIn various fields such as equity, supply chain, points, etc., major domestic financial institutions and enterprises have taken a fancy to the value of new industries and developed their own blockchain platforms. Blockchain has instantly become a new innovative industry in China. In terms of overseas internationalization, the United States has already obtained 15 blockchain patents at the end of last year compared to China. Blockchain financial applications are entering a new stage in an all-round way. Various applications will become more and more in-depth, and related changes will also become more and more profound. It has attracted more and more attention and will form a huge new trend... >>

Question 3: What is blockchain technology? What exactly is blockchain? What is blockchain? 1. Data blockchain is an important concept in the Bitcoin financial system. It records transaction record data on the entire Bitcoin network, and these data are shared by all Bitcoin nodes. Through the data block, we can query each transaction record. A look at the history of Bitcoin transactions. 2. Example: There are three persons A, B, and C. All funds of A and B are kept by C. And every financial transaction must be recorded by C. Now assume that A and B each have 1 million in custody of C. Then: A spends 80,000 yuan to B, then C's account book record will subtract 80,000 yuan from A's name, and add 80,000 yuan to B's name. If B transfers 50,000 yuan to A, C will add 50,000 yuan to A's name and subtract 50,000 yuan to B's name in the account book. A spends 50,000 yuan to B, then C's account book record will subtract 50,000 yuan from A's name, and add 50,000 yuan to B's name. 3. The role of the data blockchain is similar to that of C’s account record book. It records the user’s ownership of Bitcoin and the records of all users’ Bitcoin transactions. It’s just that this “account record book” is recorded by the mining software of every Bitcoin miner on the network. If a Bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin’s “account record book” is called the data blockchain. All data blockchains on the network form Bitcoin’s distributed network database system. 4. The essence of data blockchain technology is a decentralized and distributed structure of data storage, transmission and certification methods. It uses data blocks to replace the current Internet's dependence on central servers, so that all data changes or transaction items are recorded. On a cloud system, the self-certification of data during data transmission is theoretically realized. In a far-reaching sense, this transcends the traditional and conventional information verification paradigm that relies on a center and reduces the cost of establishing global "credit." This point-to-point verification will produce a "basic protocol", which is a new form of distributed artificial intelligence and will establish a new interface and shared interface between human brain intelligence and machine intelligence.

Question 4: What is blockchain: This explanation of blockchain is more understandable. Blockchain refers to a technology that collectively maintains a reliable database through decentralization and trustlessness. plan.
In layman’s terms, blockchainTechnology refers to a way for all people to participate in accounting. There is a database behind all systems. You can think of the database as a big ledger. Then who will keep this ledger becomes very important. Currently, whoever owns the system keeps the accounts. Tencent keeps the accounts of WeChat, and Alibaba keeps the accounts of Taobao. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are any data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write his recorded content into the ledger, and record this Within a period of time, the contents of the ledger are sent to all other people in the system for backup. In this way, everyone in the system has a complete ledger. In this way, we call it blockchain technology.
Blockchain technology has become the darling of the financial community in China and has become a hot topic. Domestic Puyin Group has launched Puyin, a tea-based digital currency.

Question 5: Explain in an easy-to-understand manner what blockchain is. Blockchain can be understood as a database system in a sense. The development of blockchain can be divided into 1.0 and 2.0
1.0 is represented by Bitcoin, and its main application is virtual currency or digital currency application. The blockchain at this time can only be used for simple digital currency transactions.
2.0 is represented by the now popular ethereum (Ethereum) and the upcoming hyperledger. The blockchain at this stage can not only meet the corresponding digital currency transactions, but also use smart contracts to customize currency or asset transactions. If we use the database analogy, the emergence of smart contracts can be understood as allowing users to define functions or stored procedures in the database and call and execute them.
Different from traditional databases, the blockchain introduces consensus mechanism, incentive mechanism, p2p (network), hash and other specific elements, making it open, decentralized and non-tamperable. characteristic.

Question 6: What is blockchain? Can anyone explain it in simple terms? Blockchain is the underlying technology of Bitcoin. It is like a ledger that records all transactions. It is decentralized. What is decentralization? For example, when you buy something on Taobao, you place an order and pay in Alipay. Alipay will not transfer the money to the seller until you receive the goods. Alipay is the third party in that center. Without it, it means decentralization, just like buying things offline. If you pay with one hand and get the goods with the other hand, there is no third party.
The blockchain itself is a series of cryptographically related data blocks generated.
Look carefully to see if it looks like a ledger. The pieces one by one are blocks, and connected together they are the blockchain.
Many companies are developing this technology. Our companyAlso, its prospects are incredible. For details, you can go to our official website and hope to adopt it, thank you

Question 7: What is blockchain technology? What is blockchain? How to explain the concept of blockchain? People in each industry have different understandings, and relevant explanations are gradually emerging due to more and more real-life applications. With the popularization of this blockchain technology, the related results are getting bigger and bigger. If we want to understand this technology, we must have an in-depth understanding of reality.
In the past six months, the concept of blockchain has gradually become popular in China, and a blockchain whirlwind has taken off in the financial circle. Blockchain has attracted the attention and favor of more and more people in the industry due to its unique technical advantages. Blockchain technology, which is decentralized (or multi-centered), highly transparent, cannot be tampered with, and has no single point of failure, is entering the field of vision of financial institutions and enterprises. It has at least been used in digital currency, payment exchange, registration and settlement, Digital assets, traceability and anti-counterfeiting, supply chain, Internet of Things and many other fields have moved from theoretical discussions to practical applications.
"Blockchain" was first introduced with "Bitcoin" released in early 2009. Blockchain has become the basic protocol and technical application for the launch, recording, and circulation of Bitcoin. Although Bitcoin has been controversial since its inception and cannot even be regarded as a "currency" by governments and monetary authorities, the blockchain technology used in Bitcoin has been recognized by governments, including governments and monetary authorities. extensive attention.
Why has blockchain become a rapidly heating up hot technology and topic?
The most important of these may be that the launch of Bitcoin based on blockchain technology has opened up a new relationship with traditional society ( The exploration and attempt of brand-new technologies and rule systems such as Internet user identity verification, wealth confirmation, transaction records, notarization and verification, which have little connection with offline) and are fully applied in the online world (online), provide people with the opportunity to adapt to the Internet society. Development provides alternative paths and unlimited imagination.
Judging from its application in Bitcoin, blockchain is a set of new network blocks (BLOCK, also called communities) formed by combining encryption technology with the Internet. Bitcoin configuration, netizen identity verification, and Bitcoin (value) confirmation formed by mining, Bitcoin transaction records, and extended encryption of Bitcoin cross-block flow (value transfer) (added block and transaction time identification, etc. Internet protocol rules and accounting (Ledger) system including block chain, full encryption, mutual authentication, etc., including factor) registration and verification. Precisely because Bitcoin is not a substitute for offline legal currency, but is issued and managed by non-legal currency authorities, mainly imitating the model of gold, and is completely new and decentralized protected and supported by basic Internet protocols and strict encryption technology. Internet currency (virtual currency) has thus formed a new set of currency rules and systems that are different from and not subject to real social laws, andAnd can be bought, sold or exchanged with fiat currency. It has been more than 8 years since Bitcoin was launched. There has been no record of funds or user information being stolen. Its security has been verified, and its efficiency and cost of fund settlement also have obvious advantages. This has made people's confidence in the blockchain technology used in Bitcoin continue to increase, and people have become more and more aware that although blockchain is a technology and protocol pioneered and applied by Bitcoin, the blockchain Chain is not the same as Bitcoin, and its application is by no means limited to Bitcoin. The application of blockchain can be decentralized or centralized; it can be a public chain model or a private chain model. Therefore, after Bitcoin, blockchain technology is also constantly developing and innovating, and constantly exploring new application fields, especially in the financial field.
The reason why blockchain is valued highly by more and more people is because the development and widespread application of the Internet have caused more and more economic exchanges and transaction activities to be conducted online, and the online world (or online world) society) is rapidly expanding, enriching and active, and online transactions must solve the efficiency and security protection issues of the parties' identity verification, value verification, transaction records, inspection and verification, etc., and require strict intermediaries and agreements (rules or constitutions). In this regard, traditional thinking and customary practices are to follow the development trajectory of the transfer of offline transactions to online and push the common rules and practices of the real (offline) society to the online (network) society. However, in practice, it is increasingly It is difficult to adapt to the needs of online transactions.
For example, for the identity verification of the parties, the natural choice is to use the information on the identity documents protected by the laws of various countries as the basis, and then add account or transaction passwords, as well as facial recognition, iris, fingerprints and other biometrics to conduct online transactions. Verification, but this method first makes the citizen identity information in the cross-border interconnected online world subject to the administrative jurisdiction of real society... >>

Question 8: Easy to understand Explain clearly what is blockchain. The English name of blockchain is Blockchain. Block literally means block, block, and chain means chain, chain. Therefore, together they are translated into blockchain.
1. Use cryptography technology to encrypt and decrypt so that records cannot be tampered with. Common blockchain encryption methods include hash algorithm, RSA algorithm, elliptic curve algorithm, etc.;
2. The huge amount of calculation needs to be supported by a reasonable reward mechanism. Because every transaction must be recorded, Bitcoin’s blockchain has more than 60 gigabytes so far. Every new transaction requires confirmation of the information related to the trading account to ensure that the transaction is valid. The huge amount of calculation requires a computer with powerful computing power to complete.
In order to encourage the participation of powerful computing power, Bitcoin provides two rewards: one is to issue a certain number of Bitcoins to these computers every day; instead, all transfer fees are awarded to these computers.some computers. (The technical term for these computers is "mining machines", and the people who hold the mining machines are called "miners".)
Biying China is working hard on the digitization of assets and has launched the digital currency crowdfunding platform Biying China.

Question 9: What is the so-called "blockchain"? Blockchain itself is a tool called decentralization and trustlessness. For example, when you graduate from university, the current practice is to have a certificate recognized and issued by an authoritative agency as your certificate. This setting is more troublesome, because this is a piece of paper, and paper can be forged, so there will be various gaps. The issuing authority is also a person, and there will be various gaps in the middle. As long as it is related to people, whoever There are various possibilities related to media. The blockchain provides a great opportunity. As soon as you graduate, you will have a record on the blockchain. No one can change this record. This thing exists objectively. You, as a physical existence , and then as a data existence, the blockchain was born. In this case, anyone who wants to check where you graduated can easily solve the problem. This is similar to the big data often involved in social networking (WeChat) and payment platforms (Alipay, Yibao).

Question 10: What does blockchain mean? Regarding blockchain, I think you have already seen the concept on the Internet. Let me explain it based on my understanding!
First, let’s talk about its characteristics: 1. Openness and transparency 2. Decentralization 3. Anonymity 4. Information cannot be tampered with, eliminated 5. No trust cost
Blockchain is like a public ledger , everyone has the right to record and read, and everyone will jointly supervise to ensure its accuracy, and the recorded content will be permanently saved, and can only be added but not deleted! However, as the number of blocks continues to increase, costs will increase and efficiency will decrease. (I’m not sure whether technology can be used to make up for this. I hope someone who understands technology can point it out.)
Blockchain is divided into public chain, private chain, and alliance chain. Public chain: accessible to everyone, everyone has read and write permissions, completely open, transparent and decentralized. Private chain: Open to individuals or institutions, in which the owner of the private chain can set various permissions to make it partially centralized. Alliance chain: Open to specific organizations or groups, it is also "partially decentralized". According to the ledger at the beginning, members can view and transact, but cannot record and confirm bills, or require permission from the alliance. (The latter two do not have cost and efficiency issues)
Regarding blockchain, countries have begun to recruit talents in this area. For this, you can search online for "Central Bank Recruiting Digital Currency R&D Personnel". In addition, you can increase your understanding of blockchain by understanding its existing applications. What we usually refer to generally refers to public chains. Currently, those used abroad include Bitcoin, Ethereum and other domestic blockchains. Chain
1. Open and transparentNote: Every piece of data is verified by everyone and can be viewed by everyone at any time.
2. Decentralization: For example, when we shop on Taobao, we conduct transactions through the intermediary Taobao, and blockchain allows both supply and demand parties to directly contact each other for direct transactions through blockchain technology.
3. Anonymity: No personal privacy information is required to complete transactions on the blockchain, only your unique alphanumeric signature is required.
4. Information cannot be tampered with or deleted: Once the data has been verified and recorded, no one has the authority to modify it, let alone delete it!
5. No trust cost: The trust crisis in reality will not appear in the blockchain. Transactions in the blockchain do not require you to trust the other party. Only when both of you have enough "digital assets" to trade can it be carried out, and Under the supervision of the entire network, transactions will not be broken. If you have no idea about the cost of trust, just think about how many intermediaries there are in your city, or just think about Jack Ma, and you will know how big the cost of trust is.
I am still learning more about blockchain. I am Li Ailin. If you have any questions, you can discuss and learn together!

4. Is blockchain a pyramid scheme? Is blockchain a disguised pyramid scheme?

Blockchain is a new technology and is not a disguised pyramid scheme. It is just claimed by many pyramid schemes to be "district schemes". "Blockchain" actually does not have any technology, it is just a pyramid scheme in the name of "blockchain". The country has issued multiple announcements to crack down on this type of pyramid scheme. The following is Xinhuanet's report on blockchain MLM:

Blockchain is not equivalent to virtual currency, and there are also security risks. Behind the popularity, there are exaggerated hype with "ulterior motives". Only by removing the flashiness can the blockchain return to its true application value.

Invest 80,000 yuan and it will become 800,000 yuan in three months? Shenzhen police uncovered a huge fund-raising fraud case. Under the guise of blockchain concepts and 10 times earnings, thousands of investors have fallen deeply into it, with the amount involved reaching 307 million yuan. Under the "mysterious veil" of the blockchain, criminals have taken advantage of the opportunity to use their tricks, and the blockchain has become a "signature" for economic crimes such as fraud and pyramid schemes.

Why has the blockchain been repeatedly “misused” by illegal activities such as pyramid schemes and fraud? Apart from being “unclear”, what is the “function” of blockchain technology itself? Since the beginning of this year, with the increased supervision and the cooling of the currency speculation trend, new opportunities have been brought to the development of blockchain. How is the implementation of blockchain commercial "applications" now? Reporters from "Lookout" News Weekly recently conducted an investigation into this.

When the three-month "fund release period" promised by the trading platform expired and the staff started "kicking" people in the QQ group, Tang Haiyan, who lives in Bao'an District, Shenzhen, realized that she might have been cheated. .

Previously, Tang Haiyan invested 80,000 yuan to buy a virtual currency called "Puyin Coin" under the introduction of a classmate. “The other party said that this currency is the most advanced blockchain technology at the moment, with Tibetan tea as collateral, and showed me the ‘technical white paper’. II don’t understand blockchain, so I didn’t read it carefully. ”

Although she doesn’t know much about blockchain or virtual currency, Tang Haiyan is full of expectations for the high investment returns. She told reporters that the company that issued the “Puyin Coin” will regularly press on the virtual currency. Split at a ratio of 1 to 10, which means that each split will increase the value of the "common silver coins" in the hands of investors by 10 times. After one split, her investment of 80,000 yuan is equivalent to buying When you reach 800,000 yuan worth of "common silver coins", you can get huge profits by selling them on the trading platform.

According to the rules of the trading platform, the newly purchased "common silver coins" cannot be traded immediately and must be traded on the platform The "release period" could only come after three months of freezing on the platform. However, when the three months passed, Tang Haiyan not only did not wait for his assets to double, but the 80,000 yuan frozen on the platform could not be used for transactions.

“Other investors began to question the authenticity of this investment in the QQ group. As a result, the company staff kicked these investors out one by one, which made me feel bad. ” she said.

Facts also proved Tang Haiyan’s intuition. At the end of March 2018, the Shenzhen police detected a huge fund-raising fraud case, with the defrauded funds reaching 307 million yuan. In this case, the Shenzhen general public involved Yin Blockchain Group Co., Ltd. uses the "blockchain + Tibetan Tea" model to issue virtual currency and rob public deposits. Tang Haiyan is one of thousands of victims.

Shenzhen Police The investigation found that the company claimed that investors could buy and sell "Puyin Coins" on the virtual trading platform "Jubi.com" to earn the price difference

. In fact, the change in its buying and selling price was The company used investors' investment funds for behind-the-scenes operations, and once raised the price of "Puyin Coin" from 0.5 yuan to 10 yuan, allowing investors to taste some sweetness. When a large number of investors entered the market, the company used malicious Manipulating the price trend of "common silver coins" to continuously cash out will eventually lead to the "common silver coins" in the hands of investors being worthless.

Since 2018, engaging in fraud and pyramid schemes under the banner of blockchain has become a "Routines" commonly used in new criminal methods. In April 2018, Jinan police shut down a pyramid scheme gang under the guise of "western development", "national poverty alleviation", "original stocks", "blockchain" and "e-commerce". More than ten main suspects were arrested, more than a hundred accounts involved were frozen, and more than 300 million yuan of funds involved were seized.

Jinan police introduced that Huileyi E-commerce Company used the reason that the country is vigorously developing the big data industry. , designed fake virtual disks on the Internet, and released various virtual currencies such as so-called "treasure coins" and "precious coins".

They first used gifts as a guise to give gifts to newly joined MLM personnel. A certain amount of virtual currency, each priced at tens of yuan, is then artificially manipulated to increase the value of the virtual currency to more than 100 yuan or even hundreds of yuan, attracting people who do not know the truth to join, and finally fluctuates through the so-called "depreciation" cycle of virtual currency. Carry out "cutting leeks" over and over again, and finally achieve the goal of reaping the benefits.legal interests.

In Xi'an, the local police also successfully cracked a huge online pyramid scheme under the banner of blockchain. According to the police, the criminal suspect Zheng paid a high salary to organize network platform administrators Zhang, Li and other 9 people. Since March 28, 2018, he has used collective pyramid schemes and online pyramid schemes as means to sell coins at a price of 3 yuan each. Sell ​​virtual "Datang Coins" on the "Consumption Era" online platform and control the appreciation rate;

At the same time, hold promotion meetings in multiple cities at home and abroad to attract members, and set up There are 28 levels of agents in charge. In just 18 days, the gang has developed more than 13,000 registered members. It has been found that the case involves 31 provinces, municipalities, and autonomous regions across the country, and the funds involved are as high as 86 million yuan.

The "Tencent 2017 MLM Situation Awareness White Paper" released by Tencent Security Joint Laboratory stated that in recent times, various overseas capital disks, virtual currencies, ICO (blockchain project initial public offering of tokens) Financing) projects emerge in an endless stream, which hide many risks such as illegal issuance, false projects, cross-border money laundering, fraud, pyramid schemes, etc., causing a large amount of funds to flow overseas. Once they collapse, run away, or lose contact, investors often have no way to complain and lose money. recover. For example, Baichuan Coin, Mark Coin, Beta Coin, Dark Coin, etc.

Reporters from "Lookout" News Weekly conducted interviews in Guangdong, Shandong, Shanghai and other places and learned that most people know that the concept of blockchain is very popular, but they are "uninformed" about the specific functions of blockchain. There are different opinions: some people think it is used for "investment and financial management" and "buying and selling currency", while others think it is "a major invention of the same magnitude as the steam engine". Some entrepreneurs are gearing up to seize this "once-in-a-lifetime opportunity to get rich."

Many people in the industry said that it is precisely because people have many misunderstandings about blockchain that criminals have the opportunity to fish in troubled waters and mislead investors.

First, blockchain is not equal to virtual currency. As of the end of last year, the number of domestic ICO participants and total transaction volume had doubled. A large number of digital currency exchanges have fled overseas, and the agency investment model has involved more ordinary people in high-risk investments.

Many industry self-media and famous speakers have formed interest alliances with issuers, digital exchanges, etc. to endorse the "Air Coin" project platform and create public opinion. In December last year, the People's Bank of China and nine other departments characterized ICOs as "suspected of illegal fund-raising, financial fraud, pyramid schemes and other illegal and criminal activities."

During the interview, many people told our reporter that the existence of tokens has built a set of equity mechanisms for the development of blockchain technology. This mechanism is indispensable for stimulating the prosperity of blockchain applications. of. "Market practice in the past five years has proven that blockchain applications without equity mechanisms are like computers without Internet connectivity and a market economy without currency. The application scenarios and development speed are greatly reduced." said an investor in Shanghai. .

In fact, tokens represented by Bitcoin are only one of the earliest products to verify blockchain technology.There is no equivalence between them, and the existence of tokens has had an obvious negative effect on the development of the blockchain.

At present, more and more people in the industry are beginning to think about whether the development of blockchain must rely on the issuance of tokens to achieve incentives. Guo Dagang, secretary-general of the Beijing Internet Finance Industry Association, told this reporter that the so-called incentive mechanism is just a theoretical basis for project parties to issue tokens.

Secondly, blockchain is not omnipotent and there are risks in its security. Blockchain is generally considered to be able to achieve three functions:

First, the data stored on the blockchain cannot be tampered with or forged, and the data has high credibility and credibility; second, The entire transaction process is traceable, enabling accurate tracking of responsibilities; third, smart contracts embedded in the blockchain can be automatically executed based on the contract, thereby improving work efficiency and reducing the risk of default. The industry generally believes that blockchain has broad application prospects in finance, logistics, trade and other fields.

In fact, blockchain is not omnipotent, and its functions also have many limitations. It is generally believed that based on its cryptographic characteristics, if you want to tamper or forge on the blockchain, you theoretically need to control more than 51% of the nodes to achieve it. When there are enough nodes in the blockchain, this trust creation mechanism with widespread public participation will be difficult to tamper with.

However, in reality, digital currency exchanges are frequently attacked or even stolen. On June 20, 2018, South Korea's Bithumb exchange announced on its official website that the exchange was attacked by hackers and cryptocurrency worth 35 billion won, or approximately US$32 million, was stolen.

Ji Xinhua, known as China's first generation "hacker", said that the blockchain will continue to face attacks, and the process of uploading data to the chain is prone to information leakage. Some people in the industry are also worried that once the super computing power of quantum computing is realized, it will also have a direct impact on the blockchain.

Thirdly, the popularity of blockchain is not entirely true. Data shows that from the end of 2017 to the beginning of 2018, more than 300 self-media companies mainly focused on ICO projects appeared, which became an abnormal phenomenon worth noting.

(4) Pingshan Tea Group Blockchain Extended Reading:

On August 24, 2018, the China Banking and Insurance Regulatory Commission website released a risk A reminder to remind the general public to guard against illegal fund-raising in the name of "virtual currency" and "blockchain".

The original text is as follows:

"Risk Tips on Preventing Illegal Fund-raising in the Name of "Virtual Currency" and "Blockchain""

China Banking and Insurance Regulatory Commission, Central Network The Office of Information Technology, the Ministry of Public Security, the People's Bank of China, and the State Administration for Market Regulation remind:

Recently, some criminals have issued so-called "virtual currencies" and "virtual assets" under the banner of "financial innovation" and "blockchain". ""Digital assets" and other methods absorb funds and infringe on the legitimate rights and interests of the public. Such activities are not really based on blockchain technology, but are hyping the concept of blockchain to illegally raise funds andThe reality of pyramid schemes and fraud mainly has the following characteristics:

1. Networking and cross-borderization are obvious. Relying on the Internet and chat tools for transactions, and using online payment tools to receive and disburse funds, risks have a wide scope and spread quickly. Some criminals rent overseas servers to build websites, essentially carry out activities for domestic residents, and remotely control illegal activities.

Some individuals claim in chat tool groups that they have obtained investment quotas for high-quality overseas blockchain projects and can invest on their behalf, which is most likely a fraudulent activity. Most of the funds for these illegal activities flow overseas, making supervision and tracking very difficult.

2. Strong deception, temptation and concealment. They use hot concepts to create hype and fabricate numerous "high-level" theories. Some even use celebrity V's "platform" propaganda, and use airdrops of "candy" as temptations, claiming that "currency values ​​only rise but not fall" and "the investment cycle is short. "High returns, low risks", which is highly deceptive.

In actual operation, criminals illegally make huge profits by manipulating the price trend of so-called virtual currencies behind the scenes and setting profit and withdrawal thresholds. In addition, some criminals also issue tokens in innovative forms such as ICO, IFO, and IEO, or conduct virtual currency speculation in the form of IMO under the banner of the sharing economy, which is highly concealed and deceptive.

3. There are various illegal risks. Through publicity, criminals use "static returns" (profits from currency appreciation) and "dynamic returns" (profits from offline development) as bait to attract the public to invest funds, and induce investors and development personnel to join in, constantly expanding the capital pool. , with characteristics of illegal fund-raising, pyramid schemes, fraud and other illegal activities.

Such activities use "financial innovation" as a gimmick, but are essentially a Ponzi scheme of "borrowing new and repaying old", making it difficult to maintain long-term capital operations. The general public is requested to view the blockchain rationally, do not blindly believe in promises made by the public, establish correct currency concepts and investment concepts, and effectively improve risk awareness; they can actively report to relevant departments any clues about illegal crimes discovered.

5. What are the current problems and challenges faced by smart contracts based on blockchain?

Jinwowo Group analyzes the following problems faced by smart contracts based on blockchain: :
1-Security issues: One of the key issues is security and trust. Smart contract systems are designed to be a trustless environment, which means that errors that occur cannot be corrected;
2-Privacy issue: A major challenge in effectively using the blockchain is that the blockchain provides complete transparency;
3-Unexpected scenario problem: Smart contracts sound very good, but how to correctly and appropriately handle contract execution in unexpected scenarios is a problem.

6. What does blockchain mean and how to understand it?

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

Blockchain, BitcoinAn important concept, it is essentially a decentralized database, and as the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each data block contains a batch of Bitcoin network Transaction information is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

Notes

1. Blockchain Originated from Bitcoin, on November 1, 2008, a person claiming to be Satoshi Nakamoto published the article "Bitcoin: A Peer-to-Peer Electronic Cash System", which elaborated on P2P network technology, encryption technology, The architectural concepts of electronic cash systems such as timestamp technology and blockchain technology mark the birth of Bitcoin.

Two months later, the theory came into practice, and on January 3, 2009, the first genesis block with serial number 0 was born. A few days later, block number 1 appeared on January 9, 2009, and was connected to the genesis block number 0 to form a chain, marking the birth of the blockchain.

2. In order to realize the great leap forward development of blockchain finance, in order to promote the new development of China’s economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that generations have been striving for, Puyin Group launched the On the 9th, a Puyin Blockchain Finance Guiyang Strategy Release Ceremony was held in Guizhou. At the meeting, the digital circulation of assets through blockchain, the blockchain financial transaction model, and the application of blockchain services and social public industries will be discussed. Explore.