Lei Jun blockchain
blockchain is an important concept of bitcoin. It is essentially a disintermediated database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography
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
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the evolution mode of blockchain is as follows:
& 9642; Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0 - Implementation of distributed applications in various instries
blockchain features:
1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system
2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work
The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of the blockchain are extremely high5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit
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
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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
cryptoclones is a digital blockchain game with collection value based on Ethereum blockchain. Using ether money to adopt clowns can be resold, and they can also be used to breed a new generation of clowns with strange shapes. They can also be cultivated to work and earn money, which makes the digital collection of clowns more sustainable and playable
the blockchain pet was originally caused by the fire of crypto kitties. It is the first digital game based on blockchain Technology launched by Ethereum. Each pet is unique and cannot be copied in the world. It is understood that Chuangshi cat was even fired to tens of millions of dollars
as a blockchain pet with great sustainability and playability, the future development prospect of ether clown can not be underestimated!
according to the official introction of Xiaomi, it applies blockchain technology and can "provide users with network value". The specific use method is very simple. Users only need to bind a WiFi. The devices connected under the WiFi will provide "growth factor" for users. The more devices connected, the more "growth factor" provided
the so-called "growth factor" can help users get "rice grain". After getting "rice grain", users can exchange it for corresponding prizes. Because the "WiFi chain" is still in the testing stage, only part of the playing methods are open. During the testing period, Xiaomi provided exchange items such as encrypted rabbit and f code[ 1]
in this app, there are two key terms - "growth factor" and "rice grain". Let's start with "growth factor
", as long as a device is connected to the binding WiFi, it can obtain growth factor, and its main function is to calculate how many "rice grains" it can obtain every day“ The concept of "rice grain" is much easier to understand. It is a bit like virtual currency, which can be used to exchange prizes. However, Tang mu, vice president of Xiaomi ecological chain, said on his microblog that "rice grain is not money, but the smallest decentralized accounting unit."
and all these rewards need "rice grains". According to the introction, rice is a reward for every WiFi node, which can be used for consumption and exchange. All rice grains will be recorded on an open and transparent blockchain. Once they are owned, they cannot be copied, modified or destroyed. In addition, the total amount of rice grains is limited, which makes it more difficult to obtain with the passage of time, and the early participants have more advantages
How do users get "rice grains"? We need growth factors. Growth factor is not only the measurement factor of WiFi node contribution, but also the influence factor of rice grain. The more WiFi node contribution, the more growth factor, the more rice grain harvested
the daily yield of rice grains is fixed, and the rice grains are allocated according to the proportion of the user's current growth factor value in the whole network
suppose that the total number of rice grains distributed every day is C, and the rice grains received by the user every day is c * the sum of the current growth factors of the user / all the growth factors of the user
understanding devices in WiFi nodes can contribute growth factors. The more connected devices, the more growth factors.
Xiaomi has no cryptocurrency, just a blockchain pet rabbit, not a virtual currency
IAC researches blockchain to realize the payment between global advertisers and members