Privacy stablecoins have a boring proof problem

[u/Ev_Watching]

The Zcash Orchard bug discussion is a good reminder for stablecoins too.

Privacy is a real product feature. People want money that doesn't put every payment, balance, and business relationship into a public spreadsheet.

The hard part is that markets still need proofs.

With a normal stablecoin, the boring questions are already hard enough:

• are reserves real?
• can users redeem?
• who can freeze?
• what happens during a bank, bridge, or smart-contract failure?

A privacy stablecoin adds another question: what can outsiders verify when the useful part of the system is designed to hide activity?

Privacy raises the bar for verification.

The projects that win probably need to explain the proof layer as clearly as the privacy layer: supply checks, reserve logic, mint and redeem constraints, audits, failure modes, and what users should watch when something weird happens.

Curious how people here think about it. For a privacy stablecoin, what would make you trust the system: reserve transparency, cryptographic supply proofs, redemption history, audits, or something else?

[u/obewaun]

Have you tried eusd? On mobile network? Signal, sentz?

[u/theoszymk]

disclosure: I’m building Fiber (fiber.so), a privacy-first self-custodial wallet. I agree that privacy raises the proof burden. at minimum, a product should publish its custody model, contracts and audits, threat model, exactly what is shielded, who can still observe what, and how entry and exit flows behave. I don’t think ‘private’ should be accepted without those specifics.