What Is a “Hash” in Simple Terms within the Blockchain Context?
A hash is the output of a cryptographic hash function, a fixed-length string of letters and numbers generated from any input data. It acts as a unique digital fingerprint for that data.
Even a tiny change to the input data results in a completely different hash. In a blockchain, the hash of the previous block is included in the current block, creating an unbreakable, tamper-evident link that secures the entire chain.
Glossar
Hash Function
Function ⎊ A hash function is a mathematical algorithm that takes an input of arbitrary size and produces a fixed-size output, known as a hash value or digest.
Digital Fingerprint
Function ⎊ A Digital Fingerprint, often synonymous with a cryptographic hash, serves as a unique, fixed-length representation of an arbitrary block of digital data.
Scrypt Hashing
Algorithm ⎊ Scrypt hashing is a memory-hard key derivation function and proof-of-work algorithm designed to resist attacks from specialized hardware like ASICs.
Cryptographic Hash
Function ⎊ A cryptographic hash is a mathematical algorithm that transforms an input of arbitrary size into a fixed-size string of characters, known as a hash value or digest.