Large amounts of data are hosted in the cloud,
and cloud providers must guarantee its authenticity
and integrity to all users. Verifying the point of origin
for multisourced data is a challenge. It’s further
challenging when data are hosted with high velocity
(for example, data from millions of sensors continuously)
Preserving integrity over time when there’s
a large user base demands more scalable solutions.
For this problem, provenance-based solutions and
graph-based integrity validation models for big data
need to be researched