Role of Bitcoin Miners

Bitcoin mining is that the process of adding transaction records to Bitcoin's public ledger of past transactions.
This ledger of past transactions is called the blockchain because it may be a chain of blocks.
Bitcoin mining is used to secure and verify transactions to the rest of the network.

Within the bitcoin networks, there are a group of people known as Miners. The role of miners, there was a process and ensure transactions to chain together the block of transaction.
These minors use very powerful computers that are specifically designed to mine bitcoin transaction.
They are doing this by actually solving math problems and resolving cryptographic issues because every transaction must be cryptographically encoded and secured.
These mathematical problems make sure that the data is secure and nobody is tampering with the data.
Additionally, for this task, the minors are paid in bitcoins, which is that the key component in bitcoin. In Bitcoin, you can't create money as like you create regular fiat currencies such as Dollar, Euro, and Yuan. The bitcoin is made by rewarding these minors for his or her add solving the mathematical and cryptographical problems.

How is the Bitcoin Blockchain built ?

The role of a minor is to create the blockchain of records that forms the bitcoin ledger.
These ledgers are called blocks, and every block contains all the various transactions that have taken place.
A replacement block is added in every 10 minutes as a new Bitcoin Transaction takes place. So, the minors process these different transactions, they build the block, and when a block is confirmed, it gets added to the blockchain.
The bitcoin blockchain provides a permanent record of all bitcoin transactions to the beginning.