What is the Bitcoin transaction process ？What does a public key private key mean ？

Digital signature ：To prove that you are the owner of the Bitcoin you want to send ，Transactions must be signed using your private key through the encryption process

If you want to send some money to your friends ，In traditional banking systems ，You may use a banking app or website to transfer money ，The bank will handle everything behind the scenes 。However ，You can send Bitcoin without a central agency like a bank 。Bitcoin transaction process ensures transactions are legal 、Safe and transparent 。So what is the Bitcoin transaction process ？

one 、Bitcoin transaction process

Create a transaction ：When you send Bitcoin ，You will create a transaction from your digital wallet 。This transaction includes the sender's address （Public Key ）、The address of the recipient （Public Key ）、Number of Bitcoins to be sent ，And the transaction fees you are willing to pay to miners 。

Digital signature ：To prove that you are the owner of the Bitcoin you want to send ，Transactions must be signed using your private key through the encryption process 。This is called digital signature 。Keeping your private key confidential is crucial ，Because it's like your digital password 。

Broadcast and confirmation ：Once signed ，Transactions will be broadcast to the Bitcoin network ，and enter the memory pool ，It's like a waiting room waiting for a confirmed transaction 。Miners can select transactions from memory pools to form new blocks 。The first miner who solves a complex mathematical problem can create the next block 。The miners who win the game broadcast their new blocks ，Other network members will confirm this new block 。

Transaction completed ：Once confirmed ，The new block will be added to the blockchain copy of each network participant 。Transactions in a new block are considered confirmed 。However ，The usual practice is to wait for at least six confirmations （Add six more blocks after the block containing your transaction ），I think the transaction is final 。This is to ensure that transactions are not reversed or double-payed if the blockchain has a temporary fork. 。

two 、Public and private keys

Public Key ，Also known as Bitcoin address ，is a randomly generated sequence of letters and numbers ，Its functions similar to an email address or a social media site username 。As the name implies ，They are public ，So it's safe to share with others 。In fact ，When you want someone to send you Bitcoin ，You must provide your Bitcoin address 。The private key is another sequence of letters and numbers ，It is also randomly generated 。However ，Private keys are like passwords for emails or other accounts ，Must be kept confidential 。Never share your private key with anyone ，Unless you 100%Trust them won't steal from you 。

three 、Summarize

This is how Bitcoin transaction process is ，For private and public keys you just need to think of your Bitcoin address as a transparent safe 。Others can see the contents inside ，But only those who have private keys can unlock the safe ，Access to the funds 。