What Is a Nonce in the Context of PoW?
A nonce (Number only used once) is a random or pseudo-random number that miners adjust millions of times per second to find a valid block hash. The miner combines the block header data with the nonce and hashes the entire string.
The goal is to find a nonce that results in a hash that meets the current network difficulty target (e.g. starts with a certain number of zeros). It is the variable that miners iterate through to perform the Proof-of-Work.
