Notes from building Identizen: protocol decisions, product thinking, and what we learned shipping device-based identity.https://identizen.comenhttps://identizen.com/blog/human-approval-for-agentshttps://identizen.com/blog/human-approval-for-agentsAgents act with your credentials and nobody can prove you agreed to any specific action. The fix is not a new protocol. It is a phone, a piece of text, and a signature.Sun, 06 Sep 2026 00:00:00 GMTGeorge Rioshttps://identizen.com/blog/sign-up-without-accountshttps://identizen.com/blog/sign-up-without-accountsThe first objection to accountless identity is practical. A business needs a name, an email, and a billing address. Here is how a site gets all of that, and why the sign-up form gets shorter, not longer.Sun, 06 Sep 2026 00:00:00 GMTGeorge Rioshttps://identizen.com/blog/what-the-phone-actually-signshttps://identizen.com/blog/what-the-phone-actually-signsApprove with Face ID hides a precise claim. Here is the exact set of bytes the phone signs, why each field is there, and what that makes impossible.Sun, 06 Sep 2026 00:00:00 GMTGeorge Rioshttps://identizen.com/blog/why-the-phone-is-the-identityhttps://identizen.com/blog/why-the-phone-is-the-identityPasswords are secrets you share. Passkeys are keys someone else syncs. Identizen starts from a simpler place — the device in your pocket already is you.Tue, 01 Sep 2026 00:00:00 GMTGeorge Rios