Thanks for a detailed explanation.

I'm curious why is the method so to calculate and pay interest once a transaction occurs. Also, Normally when locking something, interest should occur automatically. But in our case one need to do transaction each 30 days to be able to collect interest. I guess it looks bit complicated for a new user.

Secondly, Why is there a 30 days period? can it be short or longer or daily? How it would affect the overall mechanics. Of course shorter time period will give more compounded results.