{"type":"rich","version":"1.0","author_name":"npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgyd","author_url":"https://nostr.ae/npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgyd","provider_name":"njump","provider_url":"https://nostr.ae","html":"📅 Original date posted:2012-11-27\n📝 Original message:\u003e That hash would then be reported via some secure channel outside of bitcoin's\n\u003e domain.\n\nOK, I see. I guess that could be a reasonable fallback for the case\nwhere you have a secure channel.\n\n\u003e I don't understand what the relevance of multi-factor is to invoices?\n\nYes, exactly. It's about paying who you think you're paying (when you\nconfirm on a second uncompromised device)."}