Decentralized bookkeeping
for your question, subtract the mean from each measurement.
De flow means that all social resources can be aggregated and distributed with one click
in a system with many nodes, each node has a high degree of autonomy. Nodes can connect with each other freely to form a new connection unit. Any node may become the stage center, but it does not have the mandatory central control function. The influence between nodes will form a nonlinear causal relationship through the network
This kind of open, flat and equal system phenomenon or structure is called decentralization 
extended materials:
compared with the previous Internet (WEB 1.0) era, today's Internet (Web 2.0) content is no longer proced by professional websites or specific groups, but by the participation of the whole Internet users and the creation of equal power levels. Anyone can express their views on the Internet or create original content to proce information together
with the diversification of network service shape, the decentralized network model becomes more and more clear and possible. After the rise of Web2.0, the services provided by Wikipedia, Flickr, blogger and other network service providers are decentralized. Any participant can submit content, and Internet users can create or contribute content together
for example, if you are a woman, every time your boyfriend says something disgusting to you or promises to buy something for you, you immediately record it and send it to you and all his friends, classmates, colleagues, as well as various groups and circles of friends, so that he can no longer resist. This is called blockchain
the core advantage of blockchain technology is decentralization, which 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 high 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.
Decentralized bookkeeping makes blockchain assets open, transparent and unable to cheat ~
the third feature of blockchain assets is decentralized bookkeeping
the transfer you give to others will not be delayed for several days because the bookkeeping institution is on holiday; Not because the bookkeeping institutions want to make profits, so they have to pay high fees; More will not be because of accounting institutions cheating, and suffer losses
because its bookkeeping is carried out by the whole network. The account book that you transfer to others will not be unified because of the loss of the account book data here or there, because the account book is jointly maintained by the whole network, and every node has a backup
the third feature of blockchain assets is decentralized bookkeeping
the transfer you give to others will not be delayed for a few days because the bookkeeping agency is on holiday; Not because the bookkeeping institutions want to make profits, so they have to pay high fees; More will not be because of accounting institutions cheating, and suffer losses
because its bookkeeping is carried out by the whole network. The account book that you transfer to others will not be unified because of the loss of the account book data here or there, because the account book is jointly maintained by the whole network, and every node has a backup. If you transfer 0.5 coins to fire coin Niuniu, you two can look at the record data of the whole network together: whether it has arrived, several confirmed, etc., which is very transparent and fair.
decentralization obviously means indivial independent cashier management.
in the bitcoin network, the miners of the whole network participate in the competition of computing power. The miners with high computing power (also known as mining speed, that is, the ability of the computer to generate hash collisions per second) have stronger computing power and are easier to obtain the right to keep accounts. The miners who successfully seize the right to keep accounts are responsible for keeping accounts and synchronizing the account information to the whole network, In return, the miners will receive a new bitcoin reward generated by the system
for example, there is a gold mountain in front of us. The total amount of gold is 1000 tons, but there are a lot of sand and stones in it. When you are alone, it is easy for you to dig gold, but when more and more people are mining, the remaining gold will be less and less, and the mining cost will be higher. So at this time, we compare the mining speed, that is, the calculation power
as the price of bitcoin on the "currency exchange" rises, more and more people compete for the bookkeeping rights of bitcoin in order to obtain bitcoin, and the difficulty of computing power in the whole network increases exponentially.
this is the consensus issue of bitcoin. In other words, how to achieve decentralization at the same time, let the nodes of the whole network reach a consensus and keep the consistency of all accounts? This is a problem that the decentralized system could not solve for a long time in the past
Nakamoto Tsung proposed the solution of proof of work. It stipulates that the person who pays the most calculation work has a better chance to obtain the final bookkeeping right. His bookkeeping results will be recognized by the whole network. How to measure the calculation workload? Bookkeepers need to spend computer power to solve a problem called hash function. This problem can only be guessed one by one through computer enumeration. The stronger the calculation power, the easier it is to guess the right answer. Once a lucky bookkeeper finds the answer, he will get the right to keep accounts. And get a bitcoin reward. Everyone should listen to his accounting results and start new records on his basis
to put it simply, more is more. The harder you work, the luckier you are. POW solves the problem of mutual distrust nodes reaching consensus, and is considered to be the ancestor of all consensus mechanisms. It makes bitcoin a truly decentralized autonomous system.