Trading bitcoin private key

1. 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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2. 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.

3.

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

4. Computers with bitcoin clients are called nodes, and all nodes on the Internet constitute a bitcoin network. Whenever a new bitcoin is generated and traded on a node, the node will broadcast to the nearby bitcoin node, and finally the whole network node will record the transaction information
in the bitcoin network, each node with a client installed has a distributed database to manage bitcoin proction, transaction, query account balance records, and update and record the latest records of changes in the bitcoin system
when you want to send 10 bitcoins to your friends. You need two things, one is the bitcoin address, the other is the corresponding private key. Bitcoin addresses are different from bank accounts. You don't need to sign a bunch of documents to apply for them. They are randomly generated, just a string of letters and numbers. The private key is also a similar string, but this is strictly confidential. The bitcoin address is like a transparent piggy bank. Everyone can see what's in it, but only the person with the private key can open it.
after you send the transaction application, the surrounding nodes will check whether your account has 10 bitcoins. If there are, they will agree to the transaction, and broadcast the message to the nearby nodes, which will be transmitted from one to ten, and from ten to 100, Soon the whole network will confirm the transaction information and write it to the block. Your friend will receive 10 bitcoins, and the transaction will be completed.
if you want to send small bitcoins, in theory, digital currency can be cut infinitely. At present, the smallest bitcoin unit is called "Nakamoto Tsung", which is equivalent to 0.00000001 bitcoins.

5. Each person's wallet has more than one bitcoin address, and each bitcoin address represents a certain number of bitcoins. The bitcoin address is generated through a public key hash (rpiemd + Sha), and the public key is generated by the private key through elliptic curve (ECC). The private key is kept in the bitcoin wallet and should not be disclosed. The public key, together with the bitcoin address, needs to be publicly released through transaction records ring payment transactions, and the effectiveness of payment transactions is verified by the blockchain system.

6. Bitcoin address is used when receiving or sending bitcoin. It is a string composed of numbers and letters

bitcoin is based on cryptography, so its address is anonymous, which greatly ensures the security of the address, and the private key is used to protect the user's ownership of bitcoin

both exist to ensure the security of user accounts.

7.

On July 1, 2002, Russian bus Kiel Airlines flight 2937 (btc2937) originally planned to fly from Moscow, the capital of Russia, to Barcelona, Spain. DHL express company flight 611 (dhx611), the original route is from Bahrain International Airport via Italy's Bergamo International Airport to Belgium's Brussels

two planes collided at 21:35 on (UTC + 8) July 1, 2002 over the Swiss city of ublingen on the Bank of Lake Bodensee in southern Germany. The vertical tail of flight 611 passed the lower left side of flight 2937, and the Tu-154 exploded and disintegrated into two sections

Flight 611 lost control and barely flew 7 km. Two minutes later, it crashed near a mountainside. One of its engines exploded and detached from the wing before the crash. A total of 71 passengers and crew members on the two flights were killed

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extended information:

other heavy air disasters in the world

1. Tenerife air crash, 583 people were killed

in the evening of March 27, 1977, on the runway of Los Rodeo airport in the autonomous Canary Islands off the North African coast of Spain, Two Boeing 747s loaded with fuel and passengers from Royal Dutch Airlines and Pan American Airlines collided. A total of 583 people on the two planes were killed in the flames

2. The air crash of JAL 123 killed 520 people.

the air crash of JAL 123 occurred on August 12, 1985. This Boeing 747-100sr flight, carrying 509 passengers and 15 crew members, is scheled to fly from Tokyo's Haneda airport to Osaka's IDAN airport

3. The air crash of Saudi Arabian Airlines flight 763 killed 349 people on November 12, 1996. The newly taking off flight 763 of Arabian Airlines and flight 1907 of Kazakhstan Airlines collided over chakidari near New Delhi, killing 349 people on both flights. This is the most serious air collision in the world's top ten air accidents

On August 19, 1980, after taking off from Riyadh International Airport, Saudi Arabian Airlines flight 163 reported a fire in the cargo hold. Although the plane successfully turned back, a total of 301 people on board did not survive

May 25th, 1979 is a traditional American holiday, the memorial day of the dead. As one of the busiest airports in the world, O'Hare International Airport is actively transporting tourists to Los Angeles for vacation on that day. However, on that day, after the take-off of American Airlines flight 191, there was a major accident of engine falling off

8. We can't study this thing. It's all done by those digital scientists. We only know how to buy or sell it. If it's stolen by others, it's not caused by ourselves. For example, if you're in the exchange, you can get compensation. If there's a wallet, it's your own business. No one can steal it. Only you know the private key

9. Now there is a very popular mobile live software called pepper, users are very civilized

10. Bitcoin
private key
is a 256 bit
random number
, which is generated by SHA-256 algorithm