Org life body blockchain
The strict definition of blockchain refers to the distributed database technology that multiple nodes in peer-to-peer network jointly maintain a continuously growing list ledger constructed by time stamp and orderly record data blocks through consensus mechanism based on cryptography technology. This technical solution allows any number of nodes in the participating system to calculate and record all the information exchange data in the system in a period of time to a data block through cryptography algorithm, and generate the fingerprint of the data block for linking the next data block and checking. All participating nodes in the system jointly determine whether the record is true
blockchain is a technical solution similar to NoSQL (non relational database). It is not a specific technology, and can be implemented through many programming languages and architectures. There are many ways to realize blockchain, including pow (proof of work), POS (proof of stake), dpos (delegate proof of stake), etc
the concept of blockchain was first proposed in the paper "bitcoin: a peer-to-peer electronic cash system" by indivials (or groups) who call themselves Satoshi Nakamoto. Therefore, bitcoin can be regarded as the first application of blockchain in the field of financial payment
< H2 > [popular explanation]no matter how big the system or how small the website is, there is a database behind it. So who will maintain this database? In general, who is responsible for the operation of the network or system, then who is responsible for the maintenance. If it is wechat database, it must be maintained by Tencent team, and Taobao database is maintained by Alibaba team. We must think that this way is natural, but blockchain technology is not
if we think of the database as a book, for example, Alipay is a typical account book. Any change of data is bookkeeping. We can think of database maintenance as a very simple way of accounting. In the world of blockchain, everyone in the blockchain system has the opportunity to participate in bookkeeping. The system will select the fastest and best bookkeeper in a period of time, maybe within ten seconds or ten minutes. The bookkeeper will record the changes of the database and the account book in a block. We can think of this block as a page. After the system confirms that the records are correct, the system will record the changes of the database and the account book in a block, It will link the fingerprint of the past account book to this paper, and then send this paper to everyone else in the whole system. Then, over and over again, the system will look for the next person with fast and good bookkeeping, and everyone else in the system will get a of the whole ledger. This means that everyone as like as two peas in the system is called Blockchain. It is also called distributed account technology. P>
as like as two peas (computer) have identical accounting books, and everyone has the same rights, they will not collapse e to the loss of contact or downtime of a single person. As like as two peas, the data is transparent and everyone can see what changes are in every account. Its very interesting feature is that the data can't be tampered with. Because the system will automatically compare, it will think that the same number of books with the largest number are real books, and a small number of books with different numbers are false books. In this case, it's meaningless for anyone to tamper with his own account book, because unless you can tamper with most nodes in the whole system. If there are only five or ten nodes in the whole system, it may be easy to do so. However, if there are tens of thousands or even hundreds of thousands of nodes and they are distributed in any corner of the Internet, unless someone can control most computers in the world, it is unlikely to tamper with such a large block chain
< H2 > [elements]combined with the definition of blockchain, we think that we must have the following four elements to be called public blockchain technology. If we only have the first three elements, we will consider it as private blockchain Technology (private chain)
1, peer-to-peer network (power equivalence, physical point-to-point connection)
2, verifiable data structure (verifiable PKC system, non tampering database)
3, distributed consensus mechanism (Solving Byzantine general problem, solving double payment)
4 Game design of Nash equilibrium (cooperation is the strategy of evolutionary stability)
combined with the definition of blockchain, blockchain will realize four main characteristics: decentralized, trustless, collective maintenance and reliable database. And the other two will be derived from the four characteristics Features: open source Privacy. If a system does not have these characteristics, it can not be regarded as an application based on blockchain technology
Decentralized: there is no centralized hardware or management organization in the whole network. The rights and obligations of any node are equal, and the damage or loss of any node will not affect the operation of the whole system. Therefore, it can also be considered that the blockchain system has excellent robustnesstrustworthiness: there is no need to trust each other when participating in the data exchange between each node in the whole system. The operation rules of the whole system are open and transparent, and all data contents are also open. Therefore, within the specified rule range and time range of the system, nodes cannot and cannot cheat other nodes
collective maintenance: the data blocks in the system are maintained by all the nodes with maintenance function in the whole system, and these nodes with maintenance function can be participated by anyone
reliable database: the whole system will enable each participating node to obtain a of the complete database in the form of sub databases. Unless more than 51% of the nodes in the whole system can be controlled at the same time, the modification of the database on a single node is invalid, and the data content on other nodes cannot be affected. Therefore, the more nodes and computing power in the system, the higher the data security in the system
Open Source: since the operation rules of the whole system must be open and transparent, the whole system must be open source for the program
Privacy Protection: since there is no need to trust each other between nodes, there is no need to disclose the identity between nodes, and the privacy of each participating node in the system is protected
Blockchain is a term in the field of information technology. In essence, it is a shared database. The data or information stored in it is characterized by "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects
on January 10, 2019, the state Internet Information Office issued the regulations on the management of blockchain information services. In October 24, 2019, ring the eighteenth collective learning of the Central Political Bureau, general secretary Xi Jinping stressed that "block chain as an important breakthrough in core technology and independent innovation", "accelerating the development of block chain technology and instrial innovation". "Blockchain" has entered the public field of vision and become the focus of social attention
on December 2, 2019, the word was selected into the top ten catchwords of "biting words" in 2019
extended data:
Application of blockchain Finance:
since 2016, the major financial giants have also carried out blockchain innovation projects to explore the possibility of applying blockchain Technology in various financial scenarios. In particular, Puyin group took the lead in creating a "blockchain +" standard digital currency
standard digital currency refers to the process of assets identification, evaluation, right confirmation and insurance completed by a third party organization, which is written into the blockchain through careful digital algorithm to form the standard corresponding relationship between assets and digital currency, which is called standard digital currency
in order to realize the great leap forward development of blockchain finance, promote the new development of China's economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that has been struggling for generations, Puyin group will hold the Guiyang strategic development ceremony of Puyin blockchain finance in Guizhou on December 9, 2016
the meeting will discuss the realization of digital circulation of assets by blockchain, the financial transaction mode of blockchain, and the application of blockchain services and social public instry. This conference will mark the beginning of the application of blockchain finance and the change and development of the new financial ecology
great technology makes the originally complex world simple. In the past few decades, computers, the Internet, smart phones and other high and new technologies have sprung up, making things that once were unimaginable to ordinary people, such as global communications, realistic and simple. At present, in the more complex field of global real estate investment and financing, it is also ushering in a simple change. This benefits from the rise of blockchain technology and the use of smart contracts, and is brought into reality by ETB platform
ETB hopes to link global investors and real estate projects through the investment platform based on blockchain technology and smart contract application, and intuitively present everything of the whole real estate project online, from raw materials, logistics, construction to completion, to operation and income, so as to make real estate investment transparent, understandable and predictable, Any investor can invest in real estate projects in any country, and real estate developers will be able to face investors more directly
let's recall our daily online shopping life: when we meet a certain proct, we will first pay the fee to the trading platform, such as Taobao or Jingdong, and then wait for the merchant to deliver the goods. After we confirm the receipt of the goods, the platform will transfer the fee to the merchant. In this shopping process, the reason why we can trust strange sellers is that we have no choice but to trust the trading platform, otherwise we can't trade. But based on blockchain technology, it doesn't have to be so complicated. For example, on the EIT platform, investors and real estate developers only need to trust their own judgment to interact directly. What EIT needs to do is to strictly review the identity of investors and real estate projects, and provide tokens to ensure the normal progress of platform transactions
If yesterday, the application of blockchain technology was only limited to a few financial fields such as banks, securities and funds, now, blockchain has begun to directly affect the daily life of ordinary people. The emergence of ETB real estate investment decentralized platform and the entry of blockchain into the construction instry have changed our traditional view on real estate investment and financing, Trust and cooperation have become so simple
as the R & D center of bitcoin technology, bitcoin community undertakes the mission of guiding the technological innovation of the whole instry. In the process of continuous evolution of blockchain technology, we find that there are some fatal problems in the whole instry! Blockchain technology including bitcoin! Therefore, we will start to innovate and iterate the current blockchain technology from 2018. The following contents will elaborate the problems encountered by blockchain and how EIT blockchain can solve these problems, and announce the core algorithm of life body blockchain
problem 1: blockchain can't really integrate into the consumption scene
bitcoin's long-term vision is to digitize the existing currency system and make bitcoin the digital core of real currency. However, neither bitcoin nor other blockchain technologies can really achieve this goal. At least until now, all blockchains have only one attribute, namely investment attribute, The main reasons for this problem are actually several technical problems. First, the transaction time of digital currency. The existing blockchain transaction technology can not realize real-time transaction, because at the beginning of the design, we abandoned a lot of time-efficient methods for security and decentralization. It's the biggest problem that currency delivery can't be completed in real time
problem 2: block missing
this problem is a comprehensive problem. The loss of some blocks generally occurs in several cases:
1, account tag loss
2, mining machine tag loss
3, no effective inheritance of the owner
this problem seems very small, but the impact on the blockchain is fatal, Because after continuous loss, the total number of blocks will be less and less, so the corresponding value will continue to increase. The increased investment driving force of speculators will proce a vicious circle for the healthy and long-term development of a blockchain, and make users unable to trust the whole blockchain
problem 3: decentralized technology operation
bitcoin community exists for the purpose of decentralized technology update, but we can't quickly complete the really good technology update, because most of the cold wallets and mining machines need to accept this iteration update before the technology update can be completed. Bitcoin has no problem in design and fairness, But in fact, we have ignored an important problem - delay! We found that it is almost impossible to complete a technical iteration now, because no one is willing to change. Maybe this is the biggest problem we encounter
EIT's real estate network blockchain will easily solve the above problems
solution 1: time effective consumption scenario transaction
consumption scenario is mainly divided into two levels in the design of EIT - online and offline. First of all, we change our cognition of wallet. The wallet of life is a network version without cold wallet, which is mainly to solve the timeliness of transaction
online transaction: every online application that needs to pay can dock with our wallet API to quickly complete the transaction, and the currency delivery time is 1-3 seconds
offline transaction: for offline payment, we will provide a similar API to the payment tool designers, and complete the development of offline payment tools through the rapid development package. The transaction time is also 1-3 seconds
solution 2: wallet binding mechanism
first of all, we are considering a problem - what is the user's certificate? In the era of mobile Internet, mobile phone is the most timely, accurate and safe voucher for users. Our wallet design is based on the binding of user's mobile phone. Binding mobile phone link can not only effectively solve the problem of account loss, but also effectively solve the inheritance problem
solution 3: decentralized technology
why is it called technology operation here! In fact, the technology update is the operation of the whole system. We have designed a voting mechanism in EIT. All wallets complete the voting process according to a weight system. Through the identification of the weight system, we can quickly and compulsorily complete the update of wallets and mining machine computing power
the future has come. I hope the introction of EIT can truly innovate the whole blockchain instry< br />
Cloud - referred to as " ETB, Chinese bits of Cloud, to solve the problems now block chain technology, by the world' s largest currency in mid-may 2017 miners union launched ETBproject team, lasted six months, ETBby top encryption technology on the basis of succeeding to the good features of the currency of existing problems in innovation, ETBencryption currency a circulation of 21 million pieces, ETBblock using linear algorithm for mining action now, but using bionic property network force inheritance pattern, forming a network of virtual currency property, us to identify each account as a ETB, apply every payment settlement to complete the final payment of housing endings simulation done immediately.
Technology is making great originally complex world becomes simple. No more long, only for decades, the high and new technology such as computer, Internet, smart phones, let ordinary people once unimaginable transactions, such as global communication become reality and simple. At present in the field of more complex global real estate investment and financing, is also usher in a change to the simple. Thanks to block the rise of chain technology and intelligent use of contract, and by the Eit platform into reality.
ETBhope, through technology and intelligent use of investment contract based on block chain platform, link to global investors and real estate projects, and online visual rendering the whole real estate projects, from raw materials, logistics, to the completion of construction, to operation and benefits, etc., let the real estate investment in a transparent and easy to understand, predictable, through the platform of ETB, any investors can invest in real estate projects of any country, developers will also can more directly in the face of investors.
May recall our daily online life: when we phase of a proct, all fees paid to first trading platform, such as taobao or jingdong, and then wait for the businessman shipment, after we confirm receive the goods, the platform to transfer the cost to merchants. In the shopping process, we can believe that the strange sellers, because we have no choice but can only believe that the trading platform, otherwise, cannot trade. And based on block chain technology is not so complicated, in Eit platform, for example, investors and developers only need to believe that your judgment can direct interaction, Eit need to do, just for investors to strict audit status and real estate projects, normal trading platform and provide tokens, guaranteed.
If yesterday, block chain technology application is limited to a few financial sectors such as banking, securities, fund, so now, block chain have begun to directly affect the daily life of ordinary people, the emergence of Eit dispersible in real estate investment platform, as well as the block chain into the construction instry, changed our ideas about traditional in the field of real estate investment and financing, trust and cooperation have been so easy.
As COINS COINS community technology research and development center, at the same time shoulder the mission of the guide the whole instry technology innovation, we are in the process of evolving block chain technology, found that some fatal problems the instry! Including the currency block chain technology! So we started since 2018 to now block chain technology innovation and iteration, the following will be detailed in this paper, the problems and ETB block by block chain chain how to deal with these problems, at the same time announced life block chain core algorithm.
Problem a: block chain can' t really into consumption scene!< br />
The currency' s long-term vision is dig