SHA256 is a one-way hashing function. Which means that feeding that sentence into SHA-256 and it starting with the characters in that sentence is very unlikely chance.
They probably wrote a script that tacked on a bunch of random letters and numbers to a sentence, then hashed it via brute force until it returned a hash that started with the exact same thing that the sentence said.
This is similar to how Bitcoin's proof of work algorithm.
They probably wrote a script that tacked on a bunch of random letters and numbers to a sentence, then hashed it via brute force until it returned a hash that started with the exact same thing that the sentence said.
This is similar to how Bitcoin's proof of work algorithm.