Is the bitcoin key that my friend sent me useful

1. A friend got bitcoin. Bitcoin itself is normal, and anyone can register it. In fact, he is using your account to make money. There is nothing against the law. As long as you buy and sell coins in a regular way, the platform is still trustworthy. If you refuse to buy and sell coins regularly, will you be banned, So there's nothing against the law. You think too much.

2. Huawei's cloud service, which is stable, reliable, safe, reliable, sustainable and innovative, will become the "black land" of the intelligent world, and promote the realization of the inclusive service of "affordable, good and reliable". As the base, Huawei cloud provides a powerful computing platform and a more easy-to-use development platform for Huawei's full stack and full scene AI strategy.

3. 1. Wallet encryption is to store the private key automatically. 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 the change mechanism of bitcoin payment (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. 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.

5. A market price of several thousand yuan.. Please call the address of XXXXXX and I'll identify the authenticity for you. ~ (joking)

you think it is similar to gold in nature, you just take it as gold<

different from gold:
it is more scarce than gold and can not appear out of thin air
it's easier to segment than gold, which can be divided into 0.00x bitcoins for easy trading
it is easier to preserve than gold and less prone to chemical reaction
it is more convenient than gold trading. You can trade and send virtual currency directly online.

6. Bitcoin is tradable. You can either sell it or get it back. Because this trade is very volatile. In other people's hands, the price has increased, sold it to you, and bought it back to you at a low price, you don't know. And now the price is very expensive, a bitcoin is more than 10000 yuan.

7. Take Hufu exchange as an example, select the corresponding currency in my assets. If you need to transfer it to others, you can withdraw the money and ask others to send you the recharge address. You can fill in the recharge address in the withdrawal, just like bank card transfer
if you want to transfer in, you can choose to recharge and send the recharge address to others, so that others can fill in your recharge address at the withdrawal place.