Blockchain UI
according to Xiao Wang, the concept of blockchain as a service (baas) is mainly proposed by Microsoft and IBM. To put it bluntly, it is actually a new type of cloud service, a cloud service combined with blockchain technology. For example, Microsoft's azure cloud computing platform and IBM's bluemix garage cloud platform all provide blockchain as a service baas
blockchain as a service (baas) is a space created by enterprises such as Microsoft and IBM from their own cloud service network to run a blockchain node. Compared with ordinary nodes and exchange nodes, the main purpose of baas nodes is to quickly establish the development environment they need, and provide a series of operation services based on blockchain, such as search query, transaction submission, data analysis, etc. these services can be centralized or decentralized to help developers verify their concepts and models faster. The service of baas node is reflected in: it is more instrumental and easy to create, deploy, run and monitor blockchain.
Ma Huateng: blockchain, line; ICO, no way
at the two sessions, Ma Huateng said that the topic of blockchain has been very hot recently, and even some people teased that the Internet before blockchain was "classical Internet". Although blockchain technology is innovative, how to make good use of this technology is another problem
in Ma Huateng's view, blockchain technology can be applied in many fields, especially in the aspect of the uniqueness of digital authentication objects. Just like a file or bill in reality, blockchain technology can be used to ensure that they cannot be copied or tampered with. Compared with traditional IT technology in the past, blockchain has epoch-making significance in truly simulating the uniqueness of documents and receipts in real society
Ma Huateng thinks that there are still many risks in doing digital currency ICO. "If everyone can issue digital currency freely with blockchain technology, it will cause a lot of regulatory problems," he said
for example, the golden red envelope project in the 2017 Spring Festival internal test is Tencent's attempt to record users' digital assets with blockchain technology. In addition, Tencent also uses blockchain technology to rece the problem of information asymmetry
in addition to finance and public welfare, Tencent also reached a cooperation with Intel in September 2017, announcing that both sides will jointly develop blockchain technology to improve the security protection capability in the Internet of things scenario
core analysis:
1. Transparency, 2. Openness, 3. Information can not be tampered with, 4. Decentralization,
5. Detailed analysis
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
1. In a narrow sense, blockchain is a kind of chained data structure composed of data blocks connected in sequence according to the time sequence, and it can not be tampered with and forged by cryptography
2. Broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code.
Public chain, also known as "public chain", refers to the blockchain that anyone in the world can enter the system at any time to read data, send confirmatory transactions and compete for bookkeeping. The public chain is generally considered to be "completely decentralized", because no indivial or institution can control or tamper with the reading and writing of data in it. In terms of application, blockchain public chain mainly includes bitcoin, Ethereum, super ledger, most counterfeit currencies and smart contracts. The ancestor of blockchain public chain is bitcoin blockchain, which has the following characteristics:
1, open source code
upload the code to GitHub, and everyone can get complete blockchain data by downloading, Accept the test of the public
2, complete decentralization
anyone can become a node, each node is open, everyone can participate in the calculation of the blockchain, any node is not permanent, but phased, and any center is not mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain. Anyone can participate in the consensus process. The consensus process determines whether a block can be added to the blockchain and the exact current state. Everyone can get financial reward from it, which is proportional to their contribution to the consensus process. These public chains are generally considered to be "completely decentralized"
3. Developing decentralized applications
through this public chain, developers can easily develop centralized applications. Public chain can protect the rights and interests of users from the influence of program developers
blockchain is the core supporting technology of digital cryptocurrency system represented by bitcoin. The core advantage of blockchain technology is decentralization. It 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 common high cost, low 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.
Ma Yun: I want to know what bitcoin can bring to the society
at the two sessions, Ma Yun... Oh, sorry, Comrade Ma Yun who doesn't want to wear a red hat didn't attend the two sessions
In November 2017, Alibaba, ant financial services and xiong'an signed a strategic cooperation agreement to build a "digital xiong'an blockchain implementation platform". At present, ant financial services has provided blockchain landing application technology in the rental field in xiong'an. It can be said that xiong'an has become the first pilot field of Ali in the overall implementation project of blockchain technologyMusk's main purpose is to promote bitcoin better. He has promoted bitcoin to the outside world many times before it is well known that musk likes bitcoin. He not only uses his own money to buy bitcoin, but also uses bitcoin as the reserve capital currency of his company. This time, musk changed his nickname to currency master, obviously in order to better promote bitcoin. Musk also said earlier that it would consider receiving bitcoin to trade Tesla in the future. It is also driven by musk that the price of bitcoin has been rising since last year, reaching record highs repeatedly
For blockchain messages, bitcoin is to blockchain what e-mail is to the Internet. As we all know, e-mail for the first time in the history of human information dissemination and exchange realizes the function of timely, free and verifiable sending data to anyone else in the world. Both the sender and the receiver can save copies of the data sent in e-mail. However, the e-mail data copies retained by both parties also become an inherent defect of online value transfer, because both parties have their own value. Therefore, it is necessary to ensure that the value is not double paid by the existence of third-party institutions, such as banks, stock exchanges, clearing centers or notaries. As an internet protocol, bitcoin can transfer value to each other instantly and safely without the existence of intermediary organizations such as credit granting third party, which reces transaction cost and improves transaction efficiency. Xiaobian now arranges the schematic diagram of blockchain technology and related technical principles for you
literally, blockchain is a distributed account book system composed of a series of data blocks generated by cryptographic methods. Each data block contains a large amount of transaction information, which is used to verify the validity of its information and generate the next block. These blocks are arranged in the order of generation, and each block is a node
the remarkable feature of blockchain is that there is no third-party supervision as a central server, and the transaction information in the block cannot be changed. The information contained in the block can be financial transactions or any other digital transactions, including documents. The success of the Internet business model, which has dominated the business world of human society for a long time, depends on the third-party financial institutions as credit granting institutions to process and mediate electronic transactions. The role of the third-party credit granting institutions is to verify, protect and save transaction records
However, there are still a large number of fraulent online transactions, which need to be mediated by a third party, resulting in higher transaction costs. Bitcoin, based on blockchain technology, uses encryption to prove, rather than credit a third party, so that all parties willing to trade can achieve online transactions through the Internetevery transaction can be protected by digital signature and sent to the "public key" of the receiver who uses the sender's "private key" for digital signature. The owner of bitcoin, namely cryptocurrency, needs to prove the ownership of its "private key" in order to consume and trade online. The receiving party uses the sender's "public key" to verify the digital signature on the transaction, that is, the ownership of the other party's "private key"
each transaction is broadcast to each node in the bitcoin network and recorded in the public ledger after verification. Moreover, before each transaction is recorded in the public ledger, it needs to verify its validity. Therefore, the verification node needs to ensure two things before recording each transaction: that is,
(1) consumers have the signature authentication of their encrypted electronic currency
(2) there are enough encrypted e-money in consumer accounts
Figure 1 shows the transaction process and principle based on blockchain technology
I hope this answer will help you