Blockchain technology has emerged as a revolutionary force in the digital world, disrupting traditional industries and reshaping the way we perceive data security and transaction integrity. At its core, blockchain is a decentralized ledger that records transactions across multiple computers so that the record cannot be altered retroactively without the alteration of all subsequent blocks and the consensus of the network.
Blockchain operates on the principle of a distributed database, where each participant in the network has a copy of the entire ledger. This decentralized nature ensures that no single entity has control over the data, making it highly secure against hacking and fraud. Each block in the chain contains a list of transactions, and once a block is added, it cannot be altered or deleted, ensuring the integrity of the data.
The process of adding a new block to the blockchain is known as mining. Miners use their computing power to solve complex mathematical problems, and the first to solve the problem gets to add the new block to the chain. This process is called Proof of Work (PoW), and it is what secures the blockchain. Once a block is added, it is linked to the previous block, creating a chain of blocks, hence the name \