otp slotDuring manufacturing, YubiKeys are confured with a Yubico OTP (in the short-press slot), and the OTP secrets are uploaded to YubiCloud. This enables out-of-the-box OTP authentication.A short touch (1,25 seconds) will output an OTP based on the confuration stored in slot 1, while a long touch (3,5 seconds) will output an OTP based on