Why should proving one payment mean showing someone everything else in your wallet? You paid me yeah, I need to know the money came from a legitimate source I don't need to know how much else you have, who you paid last week or where the rest of your funds came from. That's the whole idea behind SafeSend by @Americanfort_io They're building a way to prove the source of funds with zero-knowledge proofs, while keeping the rest of that financial history private. You can selectively disclose what actually needs to be verified and the payment doesn't disappear into a pool either but the recipient still knows who sent it.