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A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange using cryptography to secure the transactions and to control the creation of additional units of the currency. Cryptocurrencies are a subset of alternative currencies, or specifically of digital currencies.

A blockchain is an append-only digital ledger storing a set of time-ordered transactions grouped in blocks that are linked together using cryptographic hashes.

Topics related to blockchain and cryptocurrency.

Web3 is a proposed iteration of the internet that would be built upon the blockchain, allowing for decentralized ownership and access to information online.