Hash

A hash is the result of a piece of data being put through a special algorithm. A hashing algorithm essentially compresses data of any size down into an almost-unique alphanumeric string of text. This is an important function in crypto because a blockchain is an immutable record of transactions. Cryptographic hashing will flag attempts to change something, even when there are huge amounts of data. If someone tried to alter a transaction in a block on the blockchain, they’d have to alter every consecutive transaction too, since each transaction refers to its predecessors. This makes cheating practically impossible. Different cryptocurrencies use different hashing algorithms.

Hash (Wikipedia)

Look up hash in Wiktionary, the free dictionary.

Hash, hashes, hash mark, or hashing may refer to: