In what developed countries our your services legit?
Datum is legit in all developed countries since all data basically is encrypted in the ecosystem and cleaned from personally identifying information and patterns. Datum is aimed to take back your data, so you can get paid for it while respecting your privacy terms.
Besides, Datum fits well with the new EU GDPR requirements.
How could i sell my data space.
You could sell your data space by running a Storage Node. Technical details and instructions regarding Storage Nodes will be rolled out this month.