A payment on the Neptune Cash chain is a sealed record plus a proof, and nodes check the proof instead of the record. The chain does not store who paid whom or how much. Coins arrive locked inside envelopes that no one can open or alter, and a zero-knowledge proof shows that every rule was followed. If it holds, the payment is valid. Nothing about the sender, the receiver, or the amount had to be published to make that work.
There is now a page on this site that explains the rest of the system the same way: Technology. Neptune Cash is built on ideas that take some unpacking, and the page exists to do exactly that: to make the technology understandable and digestible for anyone curious about how it all works.
The page is also honest about the edges: what is shipped today, what is still on the roadmap, and where the headline claims have precise boundaries. It stops where the real documentation starts: the official docs and the whitepaper go deeper. If something is unclear or wrong, say so on the forum; corrections are genuinely welcome.