One sentence summary of blockchain
whether it's the introction in the network, the answers given by everyone, or the simple and easy to understand introction, you may not really understand blockchain. It's recommended to read more relevant information to understand its landing application. Cryptofinance focuses on blockchain information
the core idea of blockchain is decentralization
in the blockchain system, the rights and obligations of any node are equal, and all nodes have the ability to vote with computing power, Thus, the result recognized by more than half of the nodes is guaranteed. Even under serious hacker attacks, as long as the number of nodes controlled by hackers does not exceed half of the total number of nodes in the world, the system can still operate normally and the data will not be tampered with
block chain's biggest subversive nature is the establishment of credit
theoretically, block chain technology can make WeChat payment and Alipay no longer exist value. The economist makes an image metaphor for blockchain: in short, it is "a machine for creating trust". Blockchain enables people to cooperate with each other in the case of mutual distrust and no neutral central institution. The fight against counterfeit money and financial fraud will not be needed in the future
the collective maintenance of blockchain can rece the cost
under the centralized network system, the maintenance and operation of the system depend on the operation and maintenance of platforms such as data center, and the cost cannot be omitted. Anyone can participate in the nodes of the blockchain. Each node can verify the correctness of the results of other nodes' records while participating in the records, which improves the maintenance efficiency and reces the cost
in a word, blockchain touches money, trust and power, which are the fundamental basis for human survival.
blockchain is used to record public data together, or more narrowly, to keep accounts
for example, you recorded that Zhang San owes you 10000 yuan in your computer, and Zhang San said that you still owe me 1 million yuan in my computer. So what
it used to be solved like this: find a notary, and your accounts will be recorded in the notary. In case of any dispute, the notary's account book shall prevail. For example, this is what banks do. Both of your money is deposited with him. There are records of transfers and loans
blockchain solves this problem: when you keep an account in your own computer, Zhang San also records the same data in his own computer. After recording, you two check with each other and agree. This account is officially recorded. There is no need for the participation of a third party or the so-called "authority" or "certification body"
the way that everyone keeps accounts together is also known as "distributed" or "decentralized", because everyone keeps accounts, and the accuracy of the account book is determined by the program algorithm, not an authoritative organization
extended data:
blockchain is characterized by abnormal security, non tampering, accessibility and no third party
its application scenarios include, but are not limited to, no need to prove that "my mother is my mother" in the future. The tamper proof feature of blockchain technology has fundamentally changed this situation. Our birth certificate, real estate certificate and marriage certificate can be notarized on the blockchain, becoming something trusted by the whole world. Of course, it can also easily prove that "my mother is my mother"
for another example, we often use Ctrip, meituan and other apps to find and place orders for hotels and other services, and each platform gets a commission from them. The application of blockchain is to remove middlemen and create a secure and decentralized way for service providers and customers, so as to achieve the purpose of direct connection and transaction