A hash is a mathematical function that turns a set of data into a short string of random numbers and letters. Hashes in cryptocurrencies serve as unique identifier for transactions.
I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.