Where is Cryptocurrency data stored?

Ethereum itself can be used as a decentralized storage system , and it is when it comes to code storage in all the smart contracts. … Due to these constraints, we need a different chain or methodology to store large amounts of data in a decentralized way.

Ethereum nodes store its binary data in a key-value storage system called LevelDB . Ethereum is a decentralized blockchain platform where full nodes store its own version of full blockchain data required to validate transaction blocks.

Blockchain does not store any of its information in a central location . Instead, the blockchain is copied and spread across a network of computers. Whenever a new block is added to the blockchain, every computer on the network updates its blockchain to reflect the change.

As I mentioned in the introduction, Ethereum has three types of places to store data: storage, memory, and stack . Storage is for permanent data which stick to contract. Memory is a volatile data that exists during a function call. Stack is a stack data storage that EVM has.