Is there a quantity of bitcoin

1.

The total number of bitcoins is 21 million

in 2009, when bitcoin was born, block reward was 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million

extended data

monetary characteristics

1. Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom

2. Global circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin

3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself

4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution

5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay

6. Cross platform mining: users can explore the computing power of different hardware on many platforms

2. The total amount remains unchanged. It's easy to understand that the total number of bitcoins will not change. Developers are public, but they don't have private ones.
but they can be divided down, and there's nothing hard to understand. I have 1 yuan in my wallet. I can also say that I have 10 Jiao, 100 Fen, 1000 Li, 10000 milli, 100000 silk, 1000000 Hu, 10000000 micro. No matter what the unit of measurement is, I will neither become richer nor buy more, nor have any impact on the economy.

3.

One of the most special currencies is undoubtedly bitcoin. The biggest characteristic of bitcoin is that the quantity is limited! Moreover, bitcoin supporters believe that one of the advantages of bitcoin is that the number of bitcoins is fixed{ RRRRR}

although bitcoin is limited, there is no need to worry about the problem of insufficient use, because bitcoin, as an electronic currency, is too easy to be divided. For example, in our real life, 10 yuan banknotes can be changed into 10 pieces of 1 yuan banknotes, and 1 yuan banknotes can be changed into 10 pieces of 1 jiao banknotes. Limited by the real currency, it's hard for you to find 1 Fen banknotes now, let alone tear 1 Fen banknotes into 10 pieces. But bitcoin is different. In the current data structure of bitcoin, the smallest unit is 0.00000001 bitcoin, that is & lt; 1 Cong & quot;, On top of that, there are micro bits (0.000001 bitcoin). If necessary in the future, bitcoin can also consider smaller partition units. Money can be divided into small pieces, which means it's easier to circulate, so bitcoin is limited and no problem

4.

The concept of 21 million

bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system

bitcoin is not issued in unlimited quantity, which is different from most currencies. Bitcoin does not rely on a specific currency issuer. But according to the specific algorithm, through a large number of calculations. Its circulation is controlled by software algorithms. The total number is 21 million

extended materials:

generation principle

starting from the essence of bitcoin, the essence of bitcoin is actually the special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique[ 10] In the metaphor of RMB, bitcoin is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million

to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start. After completing the installation of bitcoin client, you can directly obtain a bitcoin address. When others pay, you only need to paste the address to others, and you can pay through the same client. After installing the bitcoin client, it will distribute a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. Unfortunately, if the hard disk is completely formatted, personal bitcoin will be completely lost

5. The total amount is 21 million, about one block is proced every 10 minutes, and the number of bitcoins in each block is 12.5 after being halved twice, that is to say, 12.5 bitcoins are proced every 10 minutes

6. Bitcoin, the process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million.

7. According to the legendary algorithm, bitcoin has an upper limit of 21 million. But you know the algorithm. Although it's very difficult to make adjustments in theory, if you (the legendary top trading institutions with trillions of wealth) really want unlimited, it's a matter of minutes

theoretically, 2100 trillion, or 250.899. In terms of selecting this value, this number is far less than 264-1, which is the largest integer that can be stored in the form of standard integer in a computer. If it exceeds that value, the bitcoin value will return to zero like a odometer

but this is only theoretical, just theoretical. Just like the previous IP address regulations, no one expected that V4 would be used up so quickly. Now it is necessary to use V6. This so-called "maximum integer that can be stored in the form of standard integer" may be broken by the technology upgrade one day a year later, followed by the collapse of the whole bitcoin computing.

8. Yes, the total number of bitcoins is 21 million, and the mining was completed in 2140. Bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system.

9. There is no such thing. 0.0001 bitcoin is still a relatively large unit. According to the rules, the minimum unit of bitcoin is one eighth of ten. So just let it go. And a few more zeros< br />