Blockchain is a digital ledger that records transactions in a secure and transparent way. Instead of being controlled by a single bank or institution, blockchain is decentralized — meaning many computers (nodes) maintain the network together.
Every transaction is stored in a “block,” and each new block connects to the previous one, forming a chain. Once information is added to the blockchain, it cannot be changed or deleted, which makes it highly reliable.
Key Advantages:
Decentralized: No single authority controls it.
Secure: Uses cryptography to protect data.
Transparent: Anyone can verify transactions.
Immutable: Data cannot be altered once recorded.
Blockchain technology is the foundation of cryptocurrencies like Bitcoin, Ethereum, and many others, and it is also used in areas such as finance, supply chain, gaming, and identity verification.
