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Reverse-OTP phone verification over WhatsApp

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SMS OTPs introduce user friction and incur costs with each code sent. Phone-Verif reverses this process. Instead of receiving a one-time password, users tap a pre-written WhatsApp message to transmit an authentication token. This action confirms their ownership of the phone number. Since the user initiates the verification, repeat logins and two-factor authentication do not generate charges per attempt. The result is reduced cost, minimal friction, and a familiar interface. Imagine phone verification without the need to send an OTP.

Launched

July 22, 2026Week 20

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