I like to test popular projects before taking them seriously. I look for weak points and claims that fail under pressure.
I expected $SIGN to break fast. It did not. The main idea works. You can verify without exposing and prove without revealing. The two blockchain layers are carefully designed. The private Hyperledger handles sensitive government data. The public chain handles other operations. This solves problems that ZK proofs alone cannot.
The deployments are real. Sierra Leone launched a live national digital ID system. UAE deployed not just announced. The money is real too. $15M revenue per year. Over $4B distributed through TokenTable. $32M raised from Sequoia and Binance Labs.
The only challenge is sovereignty. Shared systems give influence to whoever sets the standards. Technology cannot solve this alone.
I looked for cracks. I found a project that already solved most of them. $SIGN is built to last.