How to run BTC node
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.
1, bitcoin trading, you have to find a dedicated online trading platform for bitcoin. With this trading platform, we can buy and sell bitcoin freely on the trading platform
2. As long as you have time and pay attention to the real-time market of bitcoin, you can learn to play bitcoin. In fact, this method is very simple, that is, buy low and sell high
3. 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
Introction to bitcoin:
1. The concept of 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
2. Bitcoin is a kind of P2P digital currency. Peer to peer transmission means a decentralized concept of bitcoin, which was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software and P2P network are designed and released
3. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
4. 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 a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation
5. The decentralized feature 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
6. 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< 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 relevant institutions would pay attention to bitcoin's current situation of encouraging illegal activities and disrupting the financial order, and require that actions be taken as soon as possible to completely ban the electronic currency
2. China has banned the issue and use of bitcoin
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bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system.
In terms of operation, bitcoin is actually a decentralized ledger on the Internet
1. Centralized account book (bank)
the bank is a centralized account book, and the account book is stored in the central database of the bank, which reads:
Zhang San's a account balance is 3000 yuan, Li Si's B account balance is 2000 yuan...
when Zhang San wants to transfer 1000 yuan to Li Si's B account through a account number:
a Zhang San goes to the bank, Submit the transfer request to the bank
b the bank confirms Zhang San's identity by means of bank card password, and checks whether Zhang San's a account number has enough balance
C after passing the check, the bank adds a transfer record: account number a transfers 1000 yuan to account number B,
and modifies the balance: account number a balance = 3000-1000 = 2000 yuan, account number B balance = 2000 + 1000 = 3000 yuan
2. Decentralized account book
suppose there is such a small village where the big family does not rely on the bank, but records who has how much money with their own account book, Everyone's account book says:
Zhang San's a account balance is 3000 yuan, Li Si's B account balance is 2000 yuan...
when Zhang San wants to transfer 1000 yuan to Li Si's B account through a account,
Zhang San roars: attention, I use a account to transfer 1000 yuan to Li Si's B account
b villagers near Zhang San listened to Zhang San's voice and checked whether Zhang San's a account had enough balance
C after passing the check, the villagers write on their account books: account a transfers 1000 yuan to account B,
and modify the balance: account a balance = 3000-1000 = 2000 yuan, account B balance = 2000 + 1000 = 3000 yuan
d the villagers near Zhang San tell the distant villagers about the transfer, and pass it on until everyone knows about the transfer, so as to ensure the consistency of everyone's account books
3. Decentralized ledger (bitcoin)
bitcoin users run bitcoin client software on their computers. Such a computer is called a node
a large number of node computers connect with each other to form a peer-to-peer network like spider web
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when Zhang San wants to transfer 1 bitcoin to Li Si's account B through account a, and when Zhang San wants to transfer 1 bitcoin to Li Si's account B through account a,
Zhang San broadcasts transfer transaction requirements to surrounding nodes: account a transfers 1 bitcoin to account B, and signs with the private key of account a
(the private key of account a can be simply understood as the password of account A. as long as you know the private key of account a, you can use the bitcoin on account a)
the nodes around Zhang San check the authenticity of the transaction signature through the public key of account a, and check whether Zhang San's account a has enough balance
C after passing the check, the node writes: account a transfers 1 bitcoin to account B,
and modifies the balance: account a balance = 3 bitcoin - 1 bitcoin = 2 bitcoin, account B balance = 2 bitcoin + 1 bitcoin = 3 bitcoin
Thed node broadcasts the transaction to the surrounding nodes and transmits it to all nodes until all nodes receive the transaction
the decentralized public ledger of bitcoin is called blockchain. This is the simplest description of the operation of bitcoin. Of course, the actual operation of bitcoin is far more complex than this
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.
1, spot trading
spot trading and stock trading are almost the same, buy low and sell high, earn the middle price difference! However, bitcoin is a T + 0 mode, trading anytime and anywhere, and there are no opening, closing, suspension and many other restrictions. It is open to trading 365 days a year
2. Futures trading is often referred to as contract trading. I believe most people can't resist the temptation of contracts. Contracts can be long and short, and can also be leveraged. The maximum support is 100 times, which indirectly magnifies the benefits and risks by 100 times, because human nature is inherently greedy. However, the difficulty coefficient of making money in the contract is high. Because bitcoin fluctuates greatly, it is possible to burst the position in an instant. Therefore, futures trading should be cautious
3. Option trading
the nature of option trading is the same as that of spot trading, i.e. expected call to buy up, expected put to buy down
since the nature of options and spot is the same, what is the difference between them? Simple comparison:
for example, bitoffer, the first bitcoin option in the world, has no margin, no handling charge and no exercise
(the only option in the world that doesn't need to exercise)
1. For spot, it costs US $7500 to buy a bitcoin
2. For option, it costs US $5 to buy a bitcoin option
when bitcoin rises from 7500 to US $8000, the spot earns us $500 and the option earns us $500
the benefits of the two are the same, but the cost difference is 1500 times
this is the case with options, which is the same as the spot calculation of profit space, except that you don't need to pay the full amount, just need to pay a little deposit Different from the traditional European options)
4. ETF fund trading
ETF is usually called trading open-end index fund, which is a very popular financial derivative in the traditional financial market. Bitoffer's launch of bitcoin ETF fund increases the fixed leverage on the original basis, because there are a certain number of futures contract positions behind the proct
What's the difference between bitcoin ETF and spot< In this year's bitcoin proction rection, in theory, X2
2. Mining machinery needs to be upgraded, in theory, X2
3. The current price of bitcoin is 7500x4 = US $30000 (expected price after next year's proction rection)
ring this period, the return comparison between holding spot money and ETF fund is as follows:
1, Up to 15 times (compound interest calculation)
there is no doubt that bitcoin ETF is the best investment choice!
1) new transactions broadcast to the whole network
2) each node brings the received transaction information into a block
3) each node tries to find a workload proof with enough difficulty in its own block
4) when a node finds a workload proof, it broadcasts to the whole network
5) if and only if all the transactions contained in the block are valid and have not existed before, other nodes agree with the validity of the block
6) other nodes indicate that they accept the block, and the method of indicating acceptance is to follow the end of the block, create a new block to extend the chain, and regard the random hash value of the accepted block as the random hash value that is faster than the new block
hope to help you.