{"type":"rich","version":"1.0","title":"Niel Liesmons wrote","author_name":"Niel Liesmons (npub149…g722q)","author_url":"https://yabu.me/npub149p5act9a5qm9p47elp8w8h3wpwn2d7s2xecw2ygnrxqp4wgsklq9g722q","provider_name":"njump","provider_url":"https://yabu.me","html":"So let's say: \n- I set up a group chat for my normie friends (Uncle Jimming a relay+blossom server for them). \n- I run a lightning node (Alby Hub style) \n- I run a #cashu mint on top of it\n\nHow do I now: \n1. only let that private group use the mint?\n2. maximize privacy?\n\nIs there some kind of \"Proof Of Group Member\" that they can share?\nIs there a way for me to run the mint in \"Blind Mode\" or something (and prove it to them!)?"}