What is Blockchain? How is it used in cryptocurrency? 

Blockchain finds mention in the context of cryptocurrencies, NFTs, DeFi and the metaverse. But what is blockchain and what is its role in Web3? Find out here. 

In layman terms, blockchain is a ledger. A record of sorts. What sets it apart is the fact that data on a blockchain ledger cannot be tampered with. Data once entered cannot be changed. 

In slightly technical terms, blockchain is a decentralised peer-to-peer network. In simple terms, it is a shared database; a distributed, immutable ledger.  

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