Use your certification key
If you certified before and saved your key, enter it here. This browser will then carry the same certification — on a laptop, a second phone, or a private window.
There is no account and no password, because either one would mean Euthyna knew who you are. A key is just something you hold. Nothing here can say whose it is.
What a key does, and what it costs
Using your key on a second device does not give you a second vote. Every decision counts you once, however many browsers you use — the count is tied to the person certified, not to the browser. That also means anyone you give your key to votes as you, and once they have used it on a decision, you cannot. Keep it as you would a key to your house.
Keys cannot be looked up or resent. Euthyna does not know who you are, so there is nobody who could find yours. If it is lost, certifying again takes a new letter.