A simple explanation using a shared Google Sheet that no one can secretly change.
Imagine a Google Sheet that records every transaction. This sheet is shared with thousands of people around the world.
This shared, permanent, transparent Google Sheet is basically what a blockchain is.
You open your wallet and enter the amount and the recipient’s address.
Your wallet sends the request to the network with your digital signature.
Thousands of computers verify you have the coins and haven’t double-spent them.
Verified transactions are grouped into a block and added permanently to the chain.
Each block contains the hash of the previous one — creating an unbreakable chain.
Blockchain is a transparent, permanent, and decentralized digital ledger. It removes the need to trust any middleman because the rules are enforced by mathematics and thousands of independent computers.