I don't think I understand it :). I will give you an example:
I put the question in my post, and the answer is a word: book. I would like to avoid people copying the answer, so they should use a hash mechanism (https://hivetools.up.railway.app/answers/) to hide the real answer. After some time I would like to choose the winner from the comment which consists of hashed word: book.

So I understand this wrong ?