3 quick questions:
1. Has the pubkey of my Keyhotee Found ID been sent to bind in genius block later? Suppose I have finished the alpha register process.
2. Do I need to backup my Keyhotee private key now?
3. If need, How should I backup it?
If you remember all the information you entered in your profile form, then there is nothing else you need to remember. If you DO want to back things up then your stretched_seed file which is encrypted with your password is what you want to backup.
As this is an alpha test, it would be nice to know if people can successfully recreate their profile from memory alone.