Contacts
Save who you pay, and verify the encryption key they publish for private notes. Once a key is pinned, you'll be warned the moment it changes — which is how you'd catch a substituted key. This list lives only on this device and is never sent to us.
Meeting someone in person?
Show them your verification code and have them scan it. That establishes your key over a channel we're not part of — the one way to rule out a substituted key outright.
No contacts yet. Add one above, or hit “Save as contact” after sending a payment.
Fingerprints are a short hash of someone's public key. Comparing one out of band — over a call, in person, anywhere that isn't this app — is what proves you're encrypting to the real person and not to a key our own directory handed you. Your contacts stay on this device; use Export to keep a backup.