واژهنامه
SHA-256
۱۴۰۵/۸/۱۹
SHA-256 is a cryptographic hash function from the SHA-2 family. It was designed by the US National Security Agency and published by NIST in 2001. It turns any data into a fixed 256-bit value, and even a tiny change in the input completely changes the result.
SHA-256 in mining
Bitcoin uses SHA-256 (applied twice) for its proof-of-work: miners keep changing the block header and hashing it until the result is below the target set by the network difficulty.
Other coins on SHA-256 include Bitcoin Cash, Bitcoin SV, eCash, Fractal Bitcoin and DigiByte (one of its algorithms).
Hardware
SHA-256 is mined only on ASICs: processors and graphics cards are millions of times slower at it. The best-known ASIC makers are Bitmain (Antminer) and MicroBT (WhatsMiner).
