Did you know that zero-knowledge proofs have fascinating applications outside of blockchain? 🤔 Let's go over some: ☢️Imagine two countries sit down to dismantle a nuclear warhead. Each needs to confirm the other is destroying a real one rather than a decoy. Neither will allow an inspection, because the design of the thing is the secret they're protecting. Princeton researchers published a protocol in Nature ( for exactly this. It confirms a warhead matches a known authentic template while revealing nothing whatsoever about what's inside it. And of course, there are many more examples past crypto: 🪪 Government ID Europe's digital identity wallet is rolling out with zero-knowledge techniques built in, so a check can confirm the one fact it needs about you without the verifier collecting everything else printed on the document. 📷 Journalism Confirming a published photograph came from a real camera, and was edited only in ways anyone can check, without the newsroom handing over the original file (that's what Brevis Vera does). 🤖 AI Confirming that the model which answered you is the one you paid for, and that it ran the way it claims. Early, and moving quickly. Underneath all of it sits the same problem. Somebody has to be convinced of one specific thing, and the evidence itself is the part that can't be handed over.