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Aug 22,2023

How does blockchain work

How does blockchain work

A blockchain is a distributed database that stores a record of transactions. It is called a "chain" because it consists of a series of blocks that are linked together. Each block contains a record of multiple transactions, and once a block is added to the chain, it cannot be altered or removed.

The key feature of a blockchain is that it is decentralized, meaning that it is not controlled by a single entity (such as a bank or government). Instead, it is maintained by a network of computers that work together to verify and record transactions. This decentralization makes it difficult for any single entity to manipulate the data on the blockchain, which makes it a secure and transparent way to store and transfer information.

Here's how a blockchain works:

  1. A transaction is initiated: When someone wants to transfer something of value (such as money, a digital asset, or a vote), they initiate a transaction. This transaction is broadcast to the network of computers that make up the blockchain.
  2. The transaction is verified: The computers on the network work together to verify the transaction. This typically involves checking to see if the sender has the necessary funds or assets to complete the transaction, and ensuring that the transaction follows the rules set out by the blockchain.
  3. The transaction is recorded: If the transaction is verified, it is added to the blockchain as a new block. This block contains a record of the transaction, as well as a unique code (called a "hash") that links it to the previous block in the chain.
  4. The transaction is completed: Once the transaction is recorded on the blockchain, it is considered complete. The information on the blockchain is public and transparent, so anyone can see that the transaction has occurred.

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