Welcome to ecash zaps: we throw random checks at you from no-name banks and consider a photo of them as “proof of zap”
Also your money is on the nostr! (wait… it’s on a custodian… what benefit does this have again over nostr login to a custodian) nostr:note1rp9n3pzrsawk2t6kqr8rhkrh527m93y7aph0aqah9ghtw9hgat9qgv6tcx