rich1.0npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgydhttps://nostr.ae/npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgydnjumphttps://nostr.ae📅 Original date posted:2012-11-27 📝 Original message:> Further, the inclusion of x509 is not really needed in the spec - you don't need to sign the invoice with an x509, you can use the payment key. No, the point of using X509 certs is to get a verified identity (a domain name) on the receipt, this is needed for multi-factor authentication. You can't do that without some kind of third party asserting to an identity.