$SIGN and the Hidden Side of Zero-Knowledge
Zero-knowledge proofs look perfect:
prove something without revealing the data.
But there’s a catch.
They don’t decide what gets asked
only how you answer.
In systems like $SIGN, the verifier sets the rules.
One proof reveals nothing.
But many small proofs, over time, can still shape a pattern.
So privacy isn’t just about hiding data anymore…
it’s about who controls the questions.
$SIGN protects the answer.
The real power is in defining the requirement.