1. Bitcoin payment system
When you go shopping in the mall, you say you have 1000 yuan on you. It actually means that you have 1000 yuan in cash in your pocket. This cash is tangible, and when you spend it, it will be actually transferred.
So, you said that you have 654.38+00,000 in your bank account. What is this 654.38+00,000? This 1 ten thousand is actually a number. You know, the money in the account has increased and decreased, which is the change of this number. Your money is actually abstract at this time.
When you make a consumption and transfer the money to others. To achieve it by program is essentially to subtract a number from your own account and add a number to someone else's account. This thing is done by the bank. If your account happens to be in the same bank, then this transaction only happens inside this bank. For a bank, its total assets will not change.
If your two accounts are opened in different banks, there will be a transfer of funds between banks at this time, which will eventually be completed by the central bank's payment and clearing system. The central bank subtracts a number from the account of Bank A and adds a number to the account of Bank B..
In principle, all transactions are realized through such addition and subtraction. All economic activities of human society are based on such a system.
The data of all banks are collected by the central bank for centralized processing, so we call it a centralized payment system. Each bank's own clearing system can be regarded as a subsystem of the system.
So what is the essence of this payment system? In fact, it is just an account book that has been added and subtracted.
Bitcoin's payment system is actually similar, and it is essentially an account book.
For example, if you want to show off your wealth now, you can take a screenshot of your bank account. If the sun doesn't shine, people will call you bragging when you say you have money. People trust banks, but they won't trust you.
Your friend sent you a sum of money, and the number in your account increased. What is the essence of this number? Is that the bank admits that you have money. If the bank doesn't admit it, the money actually doesn't exist.
So in the final analysis, how much money you have is to be recognized by the bank payment system. Banks are centralized third parties.
The bitcoin payment system is similar. How many bitcoins do you need to be recognized by the blockchain network?
What is a blockchain?
A cartoon makes you understand in seconds.
Blockchain technology refers to a way for all people to participate in bookkeeping. There is a database behind all systems. You can think of the database as a big ledger. At present, we keep separate accounts.
Because there is no centralized intermediary, making everything run automatically through preset programs can not only greatly reduce costs, but also improve efficiency. And because everyone's account books are the same, it can ensure that the account book recording process is open and transparent.
Blockchain technology is the underlying technology of Bitcoin. Bitcoin has been running very stably for many years without the operation and management of any centralized organization, so some people noticed its underlying technology and abstracted it, calling it blockchain technology or distributed ledger technology.
A report released by Santander, Spain's largest bank, shows that if blockchain technology is used in global banks around 2020, it will save about $20 billion a year. Such data is enough to illustrate the tremendous changes and breakthroughs that the "blockchain" has brought to the traditional financial sector.
Cloud computing is usually defined as providing dynamically scalable and usually virtualized resources through the Internet, but it is usually a centralized organization that provides a cloud computing platform. The network composed of blockchain generally has no specific organization, so blockchain is closer to the definition of distributed computing system and belongs to a kind of distributed computing.
Q coins are a centralized electronic currency, including the total amount and distribution method, which are controlled by Tencent. The total amount and distribution method of bitcoin are preset by programs and encryption algorithms and run on multiple nodes around the world. No one or organization can modify it, nor is it under the control of any individual or organization. Q coins are generally called electronic money, or corporate tokens. Call Bitcoin digital currency or Encrypted digital currency.