Starting with the private key

1. If you want to invest, you need to understand. Then make a decision

bitcoin is an e-money payment system based on the global network
bitcoin is an e-money system based on the global decentralized network system, without the participation of central banks and third-party institutions, with a fixed total amount. Bitcoin has the characteristics of payment system and currency at the same time. Global network nodes are maintaining the bitcoin network all day<

English: bitcoin currency symbol: abbreviation: BTC or XBT

Introction to bitcoin by wiki
different from traditional currency, bitcoin's operation mechanism does not rely on the support or credit guarantee of central bank, government and enterprise, but on the network agreement reached with seed files in the network, which is a decentralized and self-improvement monetary system, Theoretically, it ensures that no one, institution or government can control the total amount of bitcoin or create inflation. Its total amount of money graally increased at the designed rate, and the increase rate graally slowed down, and finally reached the limit of 21 million in 2140<

Introction to bitcoin in network
bitcoin is based on a set of cipher codes and generated by complex algorithms. This rule is not interfered by any indivial or organization and is decentralized; Anyone can download and run the bitcoin client to participate in the proction of bitcoin; Bitcoin uses electronic signature to realize circulation, and checks repeated consumption through P2P distributed network. The generation and consumption of each bitcoin will be recorded through the P2P distributed network and informed to the whole network. There is no possibility of forgery. Bitcoin does not rely on specific currency institutions to issue, it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction<

Introction to bitcoin in interactive network
bitcoin is an electronic currency proced by open source P2P software. Bitcoin does not rely on specific currency institutions to issue, it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction<

the difference between bitcoin and bitcoin
it should be noted that

in English, the words bitcoin and bitcoin represent two concepts of payment network and monetary unit

bitcoin starting with capital B represents bitcoin network system or bitcoin network protocol, which is a payment system based on decentralized network

you can simply understand bitcoin as a public accounting system built on the Internet and not manipulated by any third party. Bitcoin, which starts with lowercase B, refers to the digital currency (e-money, e-cash, cryptocurrency) built on bitcoin network. Bitcoin is the payment accounting unit built in bitcoin payment system. We call bitcoin the network system that proces bitcoin<

in Chinese, bitcoin and bitcoin are both called bitcoin without distinction in many places

its main features are as follows:
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< 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 required 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 in the end, a small transaction fee 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. Bitcoin is not completely anonymous
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learning bitcoin studybtc

it will take some time to protect privacy when using bitcoin. All bitcoin transactions are publicly and permanently stored in the network, which means that anyone can view the balance and transaction records in any bitcoin address. Unless the bitcoin holder discloses personal information ring the transaction, the bitcoin address will not be associated with the real identity of the bitcoin holder. This is why it is recommended that bitcoin holders use multiple bitcoin addresses; In fact, you should create a new address each time to receive bitcoin. This is especially important when using bitcoin in public places, such as on websites. In addition, you can also consider using tools like tor to hide your IP address from being recorded. Learning bitcoin

7. Bitcoin is still experimental

bitcoin is an experimental new currency in active development. Although its experimentality is diminishing with its increasing usage, remember that bitcoin is a new invention, exploring ideas that have never been tried before, so no one can predict the future of bitcoin.

2. 34 digits, starting with L

3. The private key of bitcoin wallet is a string of codes, which is very long. It is not 12 words, let alone (34 strings at the beginning of 1).

4. In order to make it easier for new people to understand, sister coin will use some metaphors. Although she is not strict, she will understand better
the private key is like your bank card password
the address of bitcoin wallet is like your bank card
as long as you have the bank card and password, anyone can withdraw money from ATM
the address of bitcoin wallet is public, which means that everyone else has your bank card, so your bank card password (private key) becomes very important at this time
once your key is disclosed, others can transfer your bitcoin

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5. Bitcoin is an electronic coin proced by open source P2P software. Digital coin is a kind of network virtual asset. Bitcoin is also paraphrased as "bitcoin.". Bitcoin is based on a set of cipher codes and generated by complex algorithms. This rule is not interfered by any indivial or organization and is decentralized; Anyone can download and run the bitcoin client to participate in the proction of bitcoin; Bitcoin uses electronic signature to realize circulation, and checks repeated consumption through P2P distributed network. The generation and consumption of each bitcoin will be recorded through the P2P distributed network and informed to the whole network. There is no possibility of forgery.

6. I'll give you my address (address). You can find my zip code (public key). You can write to me with my zip code (public key) + address. The mail will be sent to my mail cabinet. I'll open the mail cabinet (private key) with the key I have. The key of express cabinet is stored in my wallet (wallet)
1. The mail cabinet is stolen (the database is stolen)
2. The key is stolen (the private key is stolen)
3. Knowing my home address (the public key is stolen), the lock of the mail cabinet is opened violently (the private key is cracked violently).

7. I remember that the book said that if a new address is generated, the old address can also be used. Is it for security or something? I forgot to generate a new address.

8.

The private key of bitcoin wallet cannot be viewed online. Bitcoin exists on the platform. To download core or classic is the real wallet, and then you can view it

[description of private key of bitcoin wallet]:

1. Wallet encryption refers to automatically encrypting and storing the wallet with private key. The official bitcoin client supports wallet encryption since version 0.4.0. The encrypted wallet will prompt you to enter your password every time you pay. If the password is wrong, the client will refuse to pay

2. If you replace it with the earliest backup wallet (wallet. DAT), you can still trade normally. Considering the principle of bitcoin, it can be concluded that as long as there is a private key (wallet), you can prove that you are the legitimate owner of the wallet. No matter whether you encrypt or delete the wallet (the core is the private key corresponding to an address), you can't deny it

3. When backing up the bitcoin wallet, you should also pay attention to the existence of bitcoin payment change mechanism (for example, if you send 50 BTC in a complete 100 BTC to an address, the system will send 50 BTC to the other party's address, and return 50 BTC to a new address of your client, which will not be directly displayed in your address list)

4. After sending bitcoin to other addresses 100 times or using 100 different addresses to receive bitcoin, please back up your wallet again, otherwise the returned and received bitcoin will be lost forever. In addition to encrypting wallets, users can also generate offline paper wallets and brain wallets

9. The private key is a confidential block of data that, through an encrypted signature, proves that you have the right to spend bitcoin from a specific bitcoin address. Each bitcoin address has its own unique private key. If you are using wallet software, your private key is stored in your computer; If you are using an online wallet, your private key is stored on a remote server; The private key can't be disclosed, because with it, you can spend the bitcoin in its corresponding bitcoin address--- Token network forum.

10. A string of generated encryption keys