I read the White paper. As I understand it, your service benefits both users and miners?
I might say I don't understand till the end all this system of work with miners.
They privide free memory of their devices to the service and get a reward for it.
Can they use any device for this purpose or there are any restrictions?
The technology behind data storage with IDM makes use of free storage space available on the devices of miners. It is possible to take old and obsolete devices with available memory and use them to safely store information of IDM users and bring revenue to the owners of these devices at the same time.