Nonce
A nonce, short for “number used once,” is a unique value that miners in blockchain systems add to a block’s data during the mining process. Since the data in a block always produces the same hash, miners adjust the nonce to vary the resulting hash, aiming to find one that meets the Proof-of-Work requirement. By incrementing the nonce and repeatedly hashing, they can search for a valid solution without altering the original block information. The nonce is a crucial component that makes blockchain mining possible.