How to build bitcoin node

1. The nodes of bitcoin are software running on the computers of millions of bitcoin users, and millions of bitcoin nodes are interconnected to form a bitcoin network. Bitcoin node software usually includes the following functions:
1) wallet. It's used to store your bitcoin balance. In principle, as long as you have the private key of your own bitcoin address, you can use your own bitcoin
2) verify the transaction or payment. After receiving the transaction, the bitcoin node will use certain algorithms to verify the validity of a transaction. If you only change the balance of bitcoin in your computer, others will not recognize it. Similarly, your wallet will not recognize the transaction changed by others
3) mining. Core wallet can start mining function through a command to join the mining army, while SPV wallet usually can't (SPV is just passing by). However, it is not the node type that hinders home computer mining, but the rapid development of professional mining machines. Compared with ordinary computers, the computing power of ordinary computers is very small. Mining by ordinary computers is like digging your own backyard with a hoe, and then expecting to dig out gold
because of the demand of bitcoin users, bitcoin exchange was born. The exchange provides a place for centralized trading. People put money on the exchange, and the exchange will match and trade together, similar to stocks and securities. Therefore, banning exchanges does not mean banning bitcoin. Bitcoin network cannot be banned. Bitcoin is sent to the exchange's wallet, and all you see is a balance given to you by the exchange. In fact, you no longer have your own bitcoin. Bitcoin network is global. Where there is a network, there will be bitcoin. After the exchange closes, bitcoin will not disappear, but will return to where it should be.

2. Building a mine pool is not so simple, enough servers, enough computing power

3.

Every other time, the bitcoin system will generate a random code on the system node. All computers in the Internet can search for this code. Whoever finds this code will generate a block and get a bitcoin. This process is often called mining

at present, one bitcoin is divided into eight decimal places based on the current data structure, that is, 0.00000001btc. The smallest unit of bitcoin g by miners is 0.00000001btc

generally speaking, bitcoin is like a gold mountain with a total amount of 21 million gold coins. To get it, players need to use the computing power of the computer to calculate a group of numbers according to the existing algorithms

extended data:

unlike all currencies, bitcoin does not rely on specific currency institutions to issue. 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 the use of cryptography design to ensure the security of all aspects of money circulation

the decentralized feature and algorithm of P2P can ensure that it is impossible to artificially control the value of bitcoin by mass manufacturing. 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

4. Bitcoin has no support. As long as someone wants it, bitcoin can be used as a general equivalent and can be used by businesses. It has no value in itself. Bitcoin is not a standard currency. Gold and silver are naturally currencies. It means that gold and silver can be used as a general equivalent and it has value in itself. Bitcoin, in fact, is a credit that supports it, but this credit can be turned into not worth a hair.

5. The reason why blockchain ledger can be decentralized is that all nodes of the network synchronize the ledger with each other and keep consistent. Therefore, blockchain does not need a centralized bookkeeping institution, so what is the node
bitcoin is a kind of point-to-point e-cash system, more directly, node to node. Each transaction is broadcast by the originator to the nodes around it, and then broadcast to the nodes around it after receiving it, and finally spread to the whole network
every bitcoin wallet is a node, and the node with a complete blockchain ledger is called the whole node. In October 2017, there were about 9300 nodes in the bitcoin network, which were responsible for broadcasting and verifying bitcoin transfer transactions. After the transfer transaction occurs, all nodes broadcast to the whole network. After the mining node verifies that the transaction is correct, it will be recorded in the blockchain ledger. The United States, Germany and France have the largest number of bitcoin nodes, with China accounting for about 5% of the world's total nodes Data source: bitcodes. 21. CO) running bitcoin node does not provide any reward, and it does not need the whole node to transfer bitcoin, so the total number of bitcoin nodes only accounts for a small part of the node number.

6. You must have more than two computers. Change the IP of the two computers into each other's intranet IP. Pay attention to whether there is firewall interception. It is recommended to turn off all firewalls for the first time for experiment. As long as you find the link, you can start mining. The wallet needs no old blocks

7. We need professional people to do this

8. Introction: eredi information technology (Beijing) Co., Ltd. was registered in Huairou branch on November 5, 2014. The legal representative is Wang Yan. The business scope of the company includes technology development, transfer, consultation, service and promotion; Software development, etc
legal representative: Wang Yan
time of establishment: November 5, 2014
registered capital: RMB 11.5 million
Instrial and commercial registration number: 110116018131161
enterprise type: limited liability company (invested or controlled by natural person)
address: 2 / F, No. 17, Paradise Street, Yanqi Economic Development Zone, Huairou District, Beijing