How big is bitcoin data block

1.

There are only 21 million bitcoins

"graphics card mining" is a joke. In fact, it is running a specific algorithm to generate bitcoin through a large number of calculations

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extended materials:

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

unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. 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 21 million

bitcoin can be cashed and converted into the currency of most countries. Users can use bitcoin to buy some virtual items, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life items

on February 26, 2014, Joe Manchin, a Democratic senator from West Virginia, issued an open letter to a number of regulatory authorities of the US federal government, hoping that the relevant authorities would pay attention to the status quo of bitcoin's encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency

from 12:00 noon on January 24, 2017, China's three major bitcoin platforms officially began to collect transaction fees

2.

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

3. A block size of bitcoin is 1MB. There is no limit on the size of each transaction. A block can generally contain 2000-3000 transactions.

4.

1. During the first phase of the interstellar war, players only need to place the hang up location in the first and second levels of each map, and they will get a crystal ore as well as props. Because the first and second levels can get props once an hour, So players can get 24 crystal ores in one day, and 24 * 7168 crystal ores in seven days

2. During the activity period, players only need to open any treasure box in the mining area to a certain extent to get the crystal ore reward, which is divided into five grades

3. Electronic competition Wallet: ring the activity period, you can get rewards when you recharge to a certain amount, among which you can get crystal ore bag when you recharge more than 30 yuan, and you can get 100 crystal ore when you open the crystal ore bag

accumulatively support 50 crystal ores to obtain: honor fragment * 1000, detonator * 5, troll statue * 5, mysterious stone * 1

5. In fact, we don't need to worry about the fairness and security of this trading platform, the privacy of user data, the transparency of platform rules, and the stability and reliability of the trading system. This platform is very professional and there will be no problems. Thank you for your approval of my reply. I wish you all the best

6. At present, the data capacity of bitcoin blockchain continues to grow. Now it's about 10g. When many friends install the system, Disk C is not set very large. Are you worried that disk C will explode one day. Now learn how to do data migration with me First, close bitcoin client)

1. Find bitcoin's data folder< br />
XP---C:\ Documents and Settings\ username\ Application Data\ Bitcoin

vista,win7---C:\ Users\ username\ AppData\ Roaming\ Bitcoin
(Note: appdata is hidden, set to show hidden files.)

2. Cut this bitcoin folder to other drives with large space, such as disk E

3. Edit the bitcoin shortcut on the desktop, the following line to the "target" column, and then save it:

& quot; C:\ Program Files\ Bitcoin\ bitcoin-qt.exe" - datadir=e:\ Bitcoin

now, double-click the bitcoin shortcut on the desktop, the client will start, and your C disk will be saved, releasing space successfully.

7. I think this is the biggest problem of BTC at present. The current transaction volume is still very small. If the transaction volume increases by 100 times, the client data will become a headache, that is, the transaction volume does not rise. If the wallet keeps rising and reaches the P level, synchronization will become impossible. The designer of BTC has considered this problem, but it's a pity that the problem has not been solved after he left.

8. The historical data of bitcoin wallet is relatively large
generally speaking, the historical data of bitcoin wallet includes all the historical information about bitcoin transactions; But for indivials, they generally only need to download historical data related to their bitcoin
now there are more bitcoin wallets in the form of online wallets; Indivial users only need to register their account information to manage their wallets. In this way, indivial users basically do not need to consider the historical data of bitcoin wallet.

9. After the announcement of this up and down

news, bitcoin once hit a high of 123 against the US dollar. According to the data of Mt. GOx, the bitcoin international trading platform, the bitcoin dollar exchange rate rose from $112 to more than $122 from the 18th to the 20th, up about 9%. There was the same market reaction in China. On the 18th, the domestic bitcoin exchange rate broke through the 600 yuan mark, rose 5% to 629 yuan on the 19th, and slowed down on the 20th.