Hash Definition - Glossary

Hash is a fixed-size output from variable input via cryptographic algorithm; essential in blockchain security and data integrity.

Hash is a cryptographic function that transforms input data of any size into a fixed-length string of characters. This output, often called a "hash value" or "digest," is unique to each unique input. Even a slight change in the input produces a vastly different hash. Hashing is fundamental in blockchain technology, ensuring data integrity and security. It enables quick data verification and is crucial for maintaining the immutability of blockchain transactions. In crypto exchanges, hashes validate and secure transactions, enhancing trust and reliability in the system.