Blockchain decentralized distributed ledger

1. What is blockchain? Application of blockchain technology

what is a blockchain? In essence, blockchain is a decentralized distributed ledger database, which is the underlying technology of bitcoin, and is associated with bitcoin. The blockchain itself is actually a series of data blocks generated by the use of cryptography, each of which contains the information of effective confirmation of multiple bitcoin network transactions

whenever an encrypted transaction occurs, miners with strong computing power in the network begin to use the algorithm to decrypt and verify the transaction, creating new blocks to record the latest transaction. New blocks are added to the end of the original blockchain in time order, and the account book will keep growing and extending

through the complex setting of public key and private key, the blockchain network will broadcast all the transaction books of the whole financial network in real time, distribute the transaction records to each client in real time, and ensure that everyone can only modify their own property. Of course, there are other people's transaction records in the account book. Although you can see the numerical value and the corresponding transaction address (which is basically composed of a long piece of disordered letters and numbers), you can't know the real identity of the trader without using other technical means

what is a blockchain? Since last year, the concept of blockchain has become popular, especially in some developed countries. Blockchain is also known as subversion, which is very popular all over the world. Blockchain will be the first to impact the financial instry, and then will affect a wider range of economic fields. The prediction is based on several core characteristics of blockchain: decentralization, distributed ledger, point-to-point transmission, tamper proof, etc. Because the birth of blockchain is quite magical, and its development is also concerned with the rise of bitcoin in the world, many people will confuse the relationship between blockchain and bitcoin. Some people think that blockchain is a parent-child relationship with bitcoin, while others think that blockchain was born after bitcoin. But in fact, blockchain is the underlying supporting technology of bitcoin, which can be compared with TCP / IP protocol in the Internet. From a certain point of view, bitcoin can be regarded as the first practical application of blockchain generated simultaneously with blockchain

Application of blockchain technology? Since its establishment, Bubi blockchain has been focusing on the R & D and innovation of blockchain technology and procts. It has a number of core technologies, and has made substantial innovation in many aspects, forming a number of core technological achievements, such as: mathematically proven distributed consensus technology, fast large-scale account book access technology, multi chain general ledger technology supporting business form expansion The interconnection technology between heterogeneous blockchains. On April 25, "gege integral" introced the integral system into the concept of blockchain, opened up by multiple parties, issued and exchanged integral, and promoted the circulation of integral. All cooperative institutions can jointly participate in transaction verification, account book storage and real-time settlement; The third-party payment platform of the enterprise points issuer makes the points in and out more flexible. Bubi has developed its own basic blockchain service platform, which has been applied in equity, supply chain, credit and other fields. Bubi has been committed to building an open value circulation network with the core of decentralized (polycentric) trust, so that digital assets can flow freely

what is a blockchain? Application of blockchain technology? We can use bitcoin to describe several application prospects of blockchain. Bitcoin can be said to be a decentralized currency or asset. Every bitcoin can be traced back and found by everyone at any time. This application prospect means that if the transactions between people can return to the original form of barter from the current monetary value measurement method, then the measure of value is no longer legal currency, but bitcoin or other virtual currencies or virtual assets generated by the blockchain, The benefits of the current sharing economy are just the tip of the iceberg. If this traceability, query and tamper proof feature of bitcoin is applied to credit record system, identity authentication system or property right authentication system, many things like "is this house my property?"“ Whether I am unmarried or married "will not exist at all. According to the current development trend, blockchain will not only reshape all aspects of money market, payment system, financial services and economic form, but also change every field of human life.

2. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is essentially a decentralized database
for example, if you are a woman, every time your boyfriend says something disgusting to you or promises to buy something for you, you immediately record it and send it to you and all his friends, classmates, colleagues, as well as various groups and circles of friends, so that he can no longer resist. This is called blockchain
the core advantage of blockchain technology is decentralization, which can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the high cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

3. That's a good question. Let me give you an example. For example, when I deposit 100 yuan in the bank, the data of this deposit is only recorded in the bank's database, which can't be obtained by others, namely "central bookkeeping". The blockchain is a distributed accounting, a new information recording technology, and it is "encrypted" and "distributed". The data does not exist in a center, but is stored once on the computer of the whole network. For example, if I transfer 100 yuan to you, I will shout to all the computers in the whole network. Let's record the accounts together, that is, "Distributed Accounting".

4. Bookkeeping means mechanisms such as distributed bookkeeping, collective agreement and intelligent consensus. Blockchain technology presents information processing characteristics such as centralization, open sharing, authenticity and reliability, which has aroused increasing attention and application in the financial field, especially in the field of Internet finance. There are many blockchain system development companies. Blockchain technology development enterprises like Renren chain are reliable. You can learn more about them

5. Chongqing jinwowo analysis is based on distributed bookkeeping, collective agreement and intelligent consensus mechanism. The information characteristics of blockchain technology, such as decentralization, open sharing, authenticity and reliability, once attracted great attention. Among them, the characteristics of decentralization are particularly popular, and the attention to decentralization has existed since the birth of blockchain.

6. Chongqing jinwowo network: decentralization, which is different from the traditional way of centralization. There is no center, or everyone is the center; Distributed ledger database means that the recording method is not only to store the ledger data in each node, but also to share and the data of the whole ledger synchronously. At the same time, blockchain also has the characteristics of disintermediation and information transparency.

7. Q: What is blockchain technology? A: Blockchain technology can be understood as a public accounting mechanism. It is a technical solution rather than a specific proct. The basic idea is to establish a set of public account books on the Internet, in which all users in the network keep accounts and check accounts together, so as to ensure the authenticity and non tamperability of information. The reason why it is called "blockchain" is that the structure of blockchain storage data is composed of a chain of "storage blocks" on the network. Each block contains all the information exchange data in the network within a certain period of time, and the chain continues to grow over time. Q: What is the relationship between blockchain and bitcoin? A: Bitcoin used to be one of the most successful applications of blockchain technology. Specifically, the blockchain is a series of data blocks generated by the use of cryptography Association, and each data block contains the information of effective confirmation of multiple bitcoin network transactions. It can be said that bitcoin is a "killer application" of blockchain idea. Blockchain is the underlying technology of bitcoin, but its role is not limited to bitcoin. Q: What are the technical features of blockchain? A: Based on open source software and peer-to-peer network, blockchain can bring more advantages than traditional network in currency related fields such as transaction payment. These advantages include: decentralization, no need to trust the system, disintermediation, tamper proof, encryption security. Q: How does blockchain technology improve the authenticity and non tamperability of data? A: The newly added data blocks are linearly added to the end of the original block in chronological order, which constitutes the blockchain. In this process, the data is distributed in each computer. This decentralized storage method improves the authenticity and non tamperability of the data. When a transaction occurs, users all over the world can act as regulators. If we do not recognize the legitimacy of the transaction, the transaction cannot be concluded, and the data on the blockchain is maintained by us collectively. Q: Is there any potential defect in such a brain burning "blockchain"? A: Blockchain also has some defects to be solved, such as security risks, work efficiency and resource consumption. Since the supervision of blockchain depends on all nodes in the network, theoretically speaking, if you master more than 50% of the computing power of the whole network, you will be able to successfully tamper with and forge blockchain data. Secondly, e to the distributed storage, each node in the blockchain needs to keep a database, and any transaction in the network needs to be authenticated and recorded by other nodes, so the efficiency of the system is low. Finally, because the operation of the blockchain relies on the computing power contributed by the network nodes, these computing power do not proce actual social value, so it is generally considered that these computing power resources are "wasted". Application of blockchain in various fields when blockchain technology is published, many people think it is possible to realize DAC. DAC (full name) can be translated into distributed autonomous system, which refers to an organization system that runs autonomously without intervention and management through a series of open and fair rules. DAC has many forms. It may be a digital currency, a system or an entity, or even a driverless car. This kind of organization system can provide valuable services for customers in the form of currency transfer (such as bitcoin), asset transaction, domain name service, or any other business model. Therefore, through the idea of information sharing, blockchain technology is likely to bring profound changes in cost rection and security improvement to various instries. Application scenarios that existing blockchain technology can achieve: proof of existence can be used to confirm rights in the field of Internet finance, that is, blockchain can really realize "proving your mother is your mother". The smart contract guarantees the validity of the contract, such as the generation required by the electronic signature law; Reliability of methods for storing or transmitting data messages; The reliability of the method of maintaining content integrity; The reliability of the method used to identify the sender. The blockchain of the Internet of things can solve the problem of the coding standard interaction interface of the Internet of things. When an e-signature is signed by identity verification, the signature data is only under the exclusive control of the signer. Any changes to the e-signature after signing can be found, and any changes to the content and form of the data message after signing can also be found. The market forecasting community, August, is an example. Anyone can access and use August anywhere in the world, which may bring unprecedented liquidity and trading volume to the market. Asset trading NASDAQ OMX Group Inc is testing blockchain technology, which NASDAQ believes has the opportunity to transform traditional financial trading methods into bitcoin like ones. The bitcoin mode of e-commerce can be applied directly. Is it possible for e-commerce to become a "harmonious" market without supervision? Social news magmavc has invested $400000 in getgems (formerly known as gems), a start-up project for decentralized social communications applications. File storage directly impacts and even subverts the traditional cloud computing architecture. Chain, a data API blockchain API service provider, has received a $9.5 million investment led by Khosla ventures. Wall Street's financial companies are investing in blockchain and seizing the beach. Visa, NASDAQ and Citigroup also invested in chain, an old Jinshan blockchain start-up, with a financing amount of US $30 million. In the financial field, what can blockchain do? Specifically, in the financial field, in addition to providing a trading platform for bitcoin, Jiuding investment believes that blockchain technology can also greatly improve various asset trading systems other than the existing digital currency. For example, it plays an important role in the post transaction market proceres such as the liquidation and settlement of financial derivatives, foreign exchange, private equity, energy credit linked investment procts and other assets. In terms of speed, the time required for settlement audit in the U.S. securities market is 2 to 3 days. The application of blockchain technology is expected to rece the settlement audit time from hour level to minute level or even second level, thus recing the settlement risk by 99%, and recing the capital cost and system risk. In the blockchain, transaction confirmation and settlement are carried out at the same time. After the node transaction is confirmed by the system, it is automatically written into the distributed ledger, and the corresponding distributed ledgers of all other nodes are updated at the same time. The automatic operation mechanism can greatly shorten the settlement cycle. In terms of expenses, under the current settlement mechanism, in order to achieve a shorter settlement cycle, it is necessary to increase the settlement cost and initial investment expenses significantly. The emergence of blockchain technology makes it possible to rece the settlement cycle more efficiently and quickly, and rece the transaction intermediate proceres, so as to save a lot of money, which is the market space of the related blockchain instry. In terms of security, the integration of blockchain technology into smart contract technology can process complex derivatives transactions programmatically, making clearing more standardized and automated. The time linear stacking feature of the block itself can help the regulators identify and discover illegal operations. At the same time, the smart contract can change the compliance inspection into automation and minimize the possibility of violation from the beginning of liquidation. The 24-hour uninterrupted operation of blockchain technology can also make the data exchange processing of Pan state exchange more stable and reliable. In addition to securities transaction settlement, blockchain can also be used to register and issue digital asset ownership. Blockchain technology can greatly enhance program automation, while smart contract can write many complex derivatives trading terms into the registration and issuance program supported by blockchain technology. When a transaction occurs, blockchain network can quickly and correctly execute. In November 2015, LINQ, a new blockchain technology project cooperated by Nasdaq and chain, has completed the first private equity transaction using the blockchain based issuance and trading platform. The application prospect of blockchain in the field of accounting has also attracted the attention of a large number of people in the instry. Accounting, auditing and compilation cost a lot for global enterprises and the four accounting firms. Automatic accounting based on blockchain technology can greatly rece the relevant costs. The company does not need to recruit special auditors to audit the account book, and all transactions can be stored in the internal blockchain. Due to the irreversibility and time stamp function of the blockchain, the external auditors and regulators of the four major accounting firms can monitor the company's account books in real time by tracking these blockchains. At the same time, the institutions can greatly rece the dependence on the auditors to audit financial transactions and make the audit business more efficient. With the increasing maturity and application expansion of blockchain technology, blockchain start-ups in developed countries have sprung up. At present, the world's leading blockchain companies generally focus on transaction, payment, clearing, Internet of things and other pain point businesses. Some companies have achieved a certain scale, and have developed a relatively clear business model. At the same time, many companies have extended their business in the blockchain instrial chain, covering payment, transaction, risk control, etc., making full use of the multi-point coordination effect. At present, Jiuding investment is also focusing on the projects and applications of various blockchain technologies.

8. I'm very responsible to tell you that blockchain is definitely not a scam. First of all, the most talked about blockchain is digital currency. Here I want to state that there is no digital currency out at present. As you know, bitcoin, Ethereum, reborn, etc. are all digital encryption codes, and they don't have full purchasing power. At present, they are only in the stage of speculation. Blockchain is widely used in the future It will certainly overturn the existing economic model and affect the way of human life. Compared with the Internet, it will have a qualitative leap. Loser poor want to become a billionaire. This is the best shortcut. If you want to know more, you can continue to ask questions

9. Hello, no one can predict this
if you could predict, you would have become a millionaire
I don't believe in prediction for a long time. The last time I read other people's prediction on the website, I bought it and didn't even match a number

if the landlord really wants to buy it, he should have the right to offer his love
if you buy the same number every day, you will get it one day
PS: the numbers of these things usually don't repeat for several consecutive days. Therefore, it's better not to have your number today too similar to the winning number yesterday

please accept if you are satisfied, thank you