I did some research on Datareum . There is company registered in London on Jorge Perez name , but can't find any other information .
Speaking about 20M usd partnership with assern asia then i see that website was made like 1-2 days ago before partnership announcement =D So my conclusion is they didn't raise any funds or raised really small amount and made fake partnerships to get people involved in ICO , but didn't work out as expected
I also heard like that that this project had many problems, it was very regrettable with an interesting concept but they only took advantage of the ICO. projects like this that make investors worried.