Blockchain manager Li
what is centralization
the so-called centralization means "ownership" or ownership by the company. For example, Tencent's q-coin, which is issued by Tencent, is a kind of centralized electronic currency, including the total amount and the issuing method, is supervised and controlled by Tencent. You can use it, trade and go shopping, but you always have to operate in the framework of Tencent, and the final right of interpretation belongs to Tencent
the issuing mode of bitcoin is preset by the program and encryption algorithm, and runs on multiple nodes all over the world. No one or organization can modify it (everyone has his own account book, so it is impossible for one person to control everyone's account book at the same time. If there is such a technology, why should it be so complicated, If you want to blackmail money into your account, you will be the richest man in the world. There is no one left, And it is not controlled by any single person or organization
take an example: for example, Lao Zhang borrows 100 yuan from Lao Li, but Lao Li is afraid that he will default, so he asks the village head to do notarization and write down the account. This is called centralization. But if you don't find the village head, you can use the loudspeaker to shout in the village: "I Lao Li lent Lao Zhang 100 yuan! Please put it in the account book. "We all put this account in our own account book. This is called decentralization
anyone who transfers money between them will release information through loudspeakers. After receiving the information, everyone will record the transaction in their own account book. With distributed ledgers, it doesn't matter if Lao Zhang or Lao Li's ledgers are lost, because Lao Zhao, Lao Ma, Lao Wang and other families have ledgers
the main advantages of blockchain are that it does not need intermediary participation, the whole process is open and transparent, and the cost is low, and the data security is high
at present, blockchain is in a stage where everyone talks about blockchain, but can't perceive its actual technical charm. Since 2017, it has graally come into our sight, and we have graally realized that bitcoin is more fierce than real estate speculation (the price of mining machinery has skyrocketed! The news is on the screen But I still don't know
so, in which fields can blockchain be applied, what kind of changes will it bring to our future life
the core key: everyone has an account book, everyone has an account book, and the information recorded in each person's account book is consistent and synchronous, and the information is completely transparent. If it is fake, it will be the public enemy of the whole people, which greatly increases the cost of data fraud
core key 2: decentralization, which does not need a central system to manage data, prevents some people from changing data and damages the interests of the majority of people
Application:
1. Account security and privacy protection: currency transfer, exchange, payment system. Blockchain can help prevent data manipulation and fraud, prevent distributed denial of service attacks (DDoS), and effectively protect users' network privacy. Key words: anti counterfeiting, anti-counterfeiting, loan payment
2. Copyright regulation and interest disputes: for example, when a song is downloaded, from the author to the procer and then to the singer, they can get payment in real time through the blockchain, without having to wait for a long time like the traditional way, or even get no reward e to right disputes. Instead of waiting for publishers to provide royalty checks, creators can freely control the process from publishing to payment through blockchain application. Key words: real time receipt, no property dispute
3. Internet of things + artificial intelligence: the intelligent devices in the Internet of things based on the blockchain will be used to monitor the real-time situation of urban infrastructure such as bridges, roads, power grids, etc. the blockchain can connect these intelligent devices together for unified management to help them monitor more efficiently. This will help people better understand how to build a smart city in the future. Key words: unified monitoring, intelligent city
4: proof of existence: in life, once you are asked to prove that you are you, that your mother is your mother, that you have never been married, that the house belongs to you, and so on, things seem very simple. Once it falls on you, it is a great trouble. The application of blockchain technology can perfectly solve the above embarrassment. At that time, all the information that belongs to you will be recorded accurately and can not be tampered with. No one has the right to change it. When the technology develops to a certain stage, birth certificate and marriage certificate may be recorded on the blockchain. Keywords: no keywords
in addition to the application scenarios mentioned above, blockchain technology can also be applied to e-commerce, data storage, logistics and other fields. As long as we grasp the characteristics of blockchain technology, it will become easy to understand.
blockchain is actually two words, block and chain. Every bill is a block, which is linked together to form a blockchain.
first, at the beginning of bitcoin's operation, Xiaoming was given 200 yuan, and it was stipulated that whoever recorded the account first could get 10 yuan (this is the consensus mechanism, which encourages everyone to agree to do the same thing), Then give you a lot of blank bills, once a transaction occurs, you can fight for bookkeeping
1 one day, Xiao Ming gave Li Si 100 yuan (that's the deal). Then Xiao Ming could roar in the crowd and I gave Li Si 100 yuan (and sign his name). When you hear this, you can fight for bookkeeping.
2 because Wang Wu remembers quickly, he yells in the group when he finishes it first, and I remember well. This is Wang Wu, and he sends the bill to others. Wang Wu remembers very well, and there is no mistake after confirmation (Li Si signed his name), so Wang Wu gets a reward of 10 yuan, Then everyone put the bill on the last page of their books& lt; There can be multiple transactions at a time & gt
3 Wang Wu likes the glory of the king. He always likes a hero, demacia, but it costs 25 yuan, but Wang Wu only costs 10 yuan, which is obviously not enough. Wang Wu starts to think that I can keep my own account. Anyway, I can't see anything from the account book. Soon, Wang Wu got another chance to keep accounts. Besides keeping good records of other accounts, Wang Wu added one. Wang Wu gave Tencent 25 and then announced it in the group
4 while Wang Wu was waiting for demacia, Li Si carefully looked at the bill and found that it was all his own signature, no problem. However, Li Si found that Wang Wu had only 10 yuan to pay for the bill, so he refused. Similarly, everyone refused
5 Wang Wu's plan failed at the cost of wasting a lot of energy without rewards
the above basically explains the process of regional chain,
is the above explanation clear? Do not understand the place, you go to ask, lieyun finance it
Blockchain is divided into coin circle and chain circle. Coin circle is based on investment, mainly issuing and trading virtual currency, while chain circle focuses on technology development, focusing on Application in enterprise units
the vast majority of people rush to speculate in currency. The golden age of speculation in currency starts from 11 years to 18 years. At present, the price of valuable currency is too high, and the risk of speculation is greater than the income, but even if the risk is very high, it is within the acceptable range
perhaps in the near future, through blockchain technology, there will be a globally recognized digital currency in the global market, which can be used for global circulation transactions. Therefore, in order to analyze and predict the future of blockchain technology, we need to understand the categories of technology and services from various aspects
the MLM currency of blockchain will collapse on the day when the capital chain breaks as the underlying technology of bitcoin, "blockchain" is like a distributed database ledger. With the price of virtual currency based on blockchain technology such as "bitcoin" soaring, ordinary investors are increasingly interested in blockchain and digital currency
Li Xuyang, head of Tencent's security and anti fraud laboratory, said that there are more than 3000 MLM platforms using the blockchain concept. The reporter's inventory of recent cases found that "blockchain + fraud" mainly has three "routines"
extended data
with the sharp rise and fall of bitcoin and the explosion of the concept of "blockchain", many pyramid schemes under the banner of "blockchain" also appear frequently
putting on the "new vest" of blockchain, the "old routine" immediately incarnates another "new shortcut" of "Chinese aunts" in pursuit of "financial freedom" and "big pits" worth hundreds of millions. Experts suggest that relevant departments establish a joint supervision and joint strike mechanism, improve the ability of risk investigation, and timely cool down the excessive speculation chaos of "blockchain"
blockchain technology is a technology solution that does not rely on a third party and stores, verifies, transmits and communicates network data through its own distributed nodes. Therefore, from the perspective of financial accounting, some people regard the blockchain technology as a distributed, open and decentralized large-scale network bookkeeping book. Anyone can use the same technical standards to add their own information at any time, extend the blockchain, and continuously meet the data entry needs brought by various needs
generally speaking, blockchain technology refers to a way for the whole people to participate in bookkeeping. There is a database behind all the systems. You can think of the database as a big ledger. So it's very important who keeps this account book. At present, whose system will keep accounts, wechat's account book is Tencent's account book, and Taobao's account book is Ali's account book. But now in the blockchain system, everyone in the system can have the opportunity to participate in bookkeeping. If there is any data change in a certain period of time, everyone in the system can conct bookkeeping. The system will judge the person who has the fastest and best bookkeeping in this period, write the content of his records into the account book, and send the content of the account book to all other people in the system for backup. In this way, everyone in the system has a complete account book. This way, we call it blockchain technology
blockchain technology is considered to be the most disruptive technological innovation since the invention of the Internet. Relying on the ingenious distributed algorithm of cryptography and mathematics, it can make the participants reach a consensus without the intervention of any third party center on the Internet where the trust relationship cannot be established, and solve the problem of reliable transmission of trust and value at a very low cost
bitcoin peer-to-peer network stores all transaction history in "blockchain". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. After bitcoin transaction data is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed
blockchain is public on the network and can be queried in every offline bitcoin wallet data. The lightweight bitcoin wallet uses online confirmation, that is, it will not download the blockchain data to the device storage
digital currency is easy to be regarded as a new currency by traditional financial institutions, but in fact, the significance and value of its underlying technology is far greater than its monetary attribute. Taking bitcoin as an example, it is generally regarded as a kind of point-to-point digital currency, but from the technical level, it is actually a point-to-point decentralized network platform, which relies on the blockchain technology. Digital currency is a global peer-to-peer network platform based on blockchain technology. Represented by bitcoin, the application of blockchain in the field of digital currency is also known as blockchain 1.0 [1].
No, blockchain is the underlying technology, and virtual currency is mostly developed or derived from this underlying technology
Mr. Yuan Wang is engaged in the development of digital asset blockchain system. If necessary, you can search "Mr. Yuan Wang" on the Internet to find detailed communication.
Dongyang Public Security Bureau of Zhejiang Province immediately started the investigation and found that Qiao was not the only one who suffered losses. Through efforts, the police of the special task force determined the identity of the manager of the GBL trading platform and implemented the pursuit in time. The first case of fraud on bitcoin trading platform in China was solved
lawyer analysis:
Zhang Yanlai, senior special researcher of China e-commerce research center and lawyer of Zhejiang Jin law firm, believes that virtual currency is not a new concept. Q-coin and online game currency have long been known by people. However, the emergence of bitcoin once again makes people realize the power of virtual currency. Compared with the traditional q-coin, the biggest feature of bitcoin is that it does not have a unified issuing agency. The generation of bitcoin completely depends on computer algorithms, and anyone can participate in the issuance of bitcoin
this makes it difficult to trace the source of bitcoin, which makes it a real virtual currency. The anonymity, cross-border and other Internet genes of bitcoin make people see a new form of currency that may circulate in the future society, so the pursuit and use of bitcoin also continued to rise in 2013. Some foreign governments have recognized the legal status of bitcoin. In China, some online stores have begun to use bitcoin for trading. Restaurants that accept "bitcoin" consumption have appeared in Beijing. The first "bitcoin" investment fund in China is also being raised. After the Ya'an earthquake, one foundation has received a total of 65 bitcoin donations, with a market price of about 50000 yuan
of course, money laundering, fraud, gambling and so on will follow. This case is a typical case of fraud under the banner of bitcoin trading. As the first case of bitcoin fraud in China, the public security organs have also concted in-depth study and understanding of the professional knowledge related to bitcoin, and finally cracked the case. On December 5, 2013, the people's Bank of China, the Ministry of instry and information technology and other five ministries and commissions issued the notice on prevention of bitcoin risk, which first made it clear that bitcoin does not have the status of legal tender, and required financial institutions and Payment institutions not to price procts or services with bitcoin. The central bank believes that there are three risks in bitcoin Trading: high speculative risk; High risk of money laundering and being used by criminals or organizations. In the future, the future of bitcoin is not clear, especially in sovereign countries, which will take a prudent and conservative attitude towards currency, which involves financial order and national security. Therefore, the public should also raise enough risk awareness.
