Thunder blockchain information
< Introction to cognition & gt Download link is attached at the end of the article)
new economy blueprint and guide
publication time: 2016
recommendation: this book is mainly for programmers. Combined with API programming, we can tell you the principle and usage of cryptocurrency, as well as how to develop related software. For non programmer readers, the first few chapters of this book are still applicable as in-depth introction of bitcoin. Book download
(1) The underlying platform of the blockchain is a domestic independent and controllable blockchain platform developed by the science and technology of the blockchain. With the characteristics of high performance, high availability, scalability, easy operation and maintenance, strong privacy protection, and hybrid storage, the platform cooperates with the data sharing and security computing platform bitxmesh, the blockchain open service platform filoop, the supply chain finance platform filolink, and other platforms The deposit service platform filoink and the smart contract security R & D platform meshsec can better support the applications of enterprises, governments, instry alliances and other instries, and promote the efficient circulation of value among multiple institutions
(2) JD chain is the underlying framework of enterprise level blockchain independently developed by JD, and its birth marks that JD has started the construction of "Zhizhen ecology" based on the baas platform of blockchain and the underlying chain of "jdchain". Relying on the "one key deployment" capability of multiple optimization implementation, JD Zhizhen chain service platform has achieved the leading second level blockchain node deployment. In addition, it also has the core advantages of open compatibility with a variety of underlying, enterprise level dynamic networking and other mature applications. The timely launch of JD Zhizhen chain will effectively promote the large-scale implementation of enterprise level blockchain applications in various instries, and promote the construction of China's and global trust economy
(3) thunderchain is a blockchain application project independently researched and developed by netxin technology under thunderchain, which has high concurrency and second level confirmation capability of millions of TPS. Based on the research and development of high-performance blockchain procts, Xunlei has built an open platform of Xunlei chain, which helps enterprises or indivial developers to deploy smart contracts, easily realize the proct and service on the chain, and make the application development of blockchain more convenient
(4) Jingtong blockchain
Jingtong blockchain is the core underlying technology of Jingtong technology's blockchain with independent intellectual property rights. It is an effective decentralized Internet trading network based on blockchain technology, which adopts layered design (5 layers) underlying platform and multi language intelligent contract system, and has realized cross chain function. It has multi-level, all-round and one-stop service capabilities such as private chain, cloud chain and alliance chain. The layout of instry and regional ecology has taken shape
in addition to the above blockchain procts, there are community led LTC, cosmos, iota, Neuros, nuls, MOAC, etc., and enterprise led ripple, stellar, Weizhong bcos, network xuperchain, Huawei, Ping'an, Wanxiang, ant financial services, Zhongan, Bubi, matrix element, secret ape, zhongxiangbit, complex beauty, Shanghai Lianjing, etc
extended data:
blockchain is far more than a technology, which involves the spirit of "multi-party cooperation". In modern society, a lot of things must rely on everyone's cooperation to achieve 1 + 1 & gt; But we should try our best to avoid the problem of "information asymmetry" in cooperation
therefore, members of the alliance should keep accounts and share data together, and make everything public to eliminate "information asymmetry", so as to protect everyone's interests and make the business environment develop healthily. Honest work will get e benefits, if cheating will naturally be known to all. Technology is the foundation to help achieve this pattern. This is the more important "blockchain thinking"
so what is bitcoin? First of all, remember that bitcoin is an electronic currency based on P2P and cryptography. Peer to peer transmission (P2P) means a decentralized payment system. Unlike most currencies, bitcoin does not rely on a specific currency institution. It is generated by a large number of calculations based on a specific algorithm. Cryptography is used to ensure the security of all aspects of money circulation
with this concept in mind, we can understand the wonders of bitcoin through an application scenario:
in a second grade class of primary school, in order to encourage students to study hard, Mr. Wang ranked after each exam, adding three little red flowers to the top 10, and adding one little red flower to 10-20, The last five minus a little red flower each time... The change of little red flower is recorded by the monitor Yang Yang. The number of little red flowers can be exchanged for animation books or beautiful stationery in the class bookshelf
in fact, in real life, the responsibility of the bank is the same as that of the monitor Yang Yang - they are all bookkeeping (except that Yang Yang records little red flowers and the bank records money). Pay wages, the bank to your account plus 5000 yuan; Buy a bottle of shampoo minus 20 yuan; One year deposit plus interest of 100 yuan; Transfer is to subtract 1000 from your account and add 1000 to the other's account...
the biggest difference between the bank and the monitor Yang Yang is that Yang Yang serves you for free, but the bank asks us to collect money, card fee, annual fee, transfer fee... Just look at the number of high-rise buildings and employees in the bank, you can know how much money the bank has collected from us
however, the system of relying on the records of the monitor Yang Yang is not very solid (the bank relies on government intervention), because some students began to make their own little Safflower in order to change more books and stationery. The growth of the number of little safflower has exceeded the purchase speed of bookshelves, and eventually students no longer believe in little safflower
the teacher has come up with another way, instead of using the little Safflower in the form of material object, he has to keep accounts! Each student has his own "little safflower account book", and set up "little safflower account book" in the monitor. When the transaction occurs, students in the monitor's witness, fill in their own books. If a student wants to modify his account book secretly, but he can't match the monitor's general ledger, he will find the problem
such a system solved the problem of students making their own little red flowers. However, it didn't last long, and the monetary system soon collapsed, because one day, a student found that the girls at the same table with the monitor always had endless little red flowers. As for why he wanted to (the disadvantage of central institutions issuing currency)
in view of this situation, teachers once again play their wisdom, as follows:
1) no longer set up a general ledger
2) all the students in the class maintain an account book together. No matter whether there is any change, the account book will be updated every 10 minutes, and all the students will be informed after the update
3) every day after school, all the students who want to keep accounts calculate today's transactions together, and the first student who calculates correctly gets a reward
4) after daily calculation, a transaction can only be recognized if it is consistent with the records of most students
in this way, it is very difficult for someone to modify the account book secretly. He has to check with the account book of the whole class. Only the vast majority (more than half) of the students' accounts can be matched with you (maybe some students have a wrong account), can this transaction be recognized. At the same time, it also aroused the enthusiasm of the students to calculate the accounts, because the students who calculated the first time were rewarded. And this mode is the bitcoin system in which bitcoin exists
in this scenario:
① the little red flower on the ledger is a kind of digital currency, equivalent to bitcoin
② the network composed of the whole class is a P2P network. Each student is equivalent to a node
③ the system composed of students and ledger is like a regional chain
④ there is no "little red flower general ledger" stored in the monitor, which is decentralization
⑤ the students who are calculated first will be rewarded, which is mining< There is a classmate who uses a calculator, which is faster than others. This calculator is equivalent to a miner< If students don't write their own names on their account books, but use their own symbols, this is the embodiment of anonymity
at first, bitcoin was of little value, only his inventor, Nakamoto Tsung, was willing to mine. After Nakamoto quietly g more than 1 million bitcoins, some people finally began to join the mining team. Later, some physical stores and websites began to accept bitcoin payment. With the increasing demand for bitcoin, bitcoin became more and more valuable.
of course, you can withdraw cash from local banks when you receive acceptance in other places you can ask the bank customer service according to the customer service of the bank
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
taking the tourism instry as an example, blockchain applications mainly focus on tourism travel, tourism community reviews, digital identity management, credit consumption management, tracking pilot's professional certificate and qualification, loyalty plan of hotels and airlines, reservation management and consumption points management. In addition, blockchain also has applications in finance, games, entertainment and other fields.
=400 ÷ four thousand × 100% < br > = 10% < br > A: the average price per square meter was reced by 10% at the opening
the people's Bank of China is the central bank, and its responsibility is to formulate and implement monetary policies, prevent and resolve financial risks, and stabilize the financial system. The people's Bank of China does not handle business with enterprises, institutions or indivials. What you said about foreign currency exchange is a specific financial business, which is handled by commercial banks such as the Bank of China. The people's Bank of China does not directly handle this kind of business< Article 2 the people's Bank of China is the Central Bank of the people's Republic of China
under the leadership of the State Council, the people's Bank of China formulates and implements monetary policies to prevent and resolve financial risks and maintain financial stability.