Hi!

show us that over 4 million dollars were already invested by the founders - > You're very welcome to visit one of our offices, we can show you the account books personally.
show us your past track of progress of tech advance -> Like the demo video of Channels app (https://www.youtube.com/watch?v=Ec3LzMjyN38) and the intellectual property rights documents published on https://exscudo.com/ico/?
there must be great tech ready to go for 4 years and 4 millions spent already -> again, please refer to section 'Documents' on our ICO page for verification.