A decentralized procedure that includes network validation, consensus techniques, and cryptographic encryption is used to validate a cryptocurrency transaction. A transaction is broadcast to the network and bundled into a block when a user starts it. Its legitimacy is confirmed by miners (in Proof of Work) or validators (in Proof of Stake), who check digital signatures and make sure the sender has enough money. The transaction becomes unchangeable after it has been verified and published to the blockchain. Without the need for a central authority, this approach keeps the network intact and stops double-spending.
