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Patent US10592639
Issued 2020-03-17
Blockchain-based Shadow Images To Facilitate Copyright Protection Of Digital Content
A client platform supports digital rights management. The client platform comprises a digital rights management (DRM) engine which, when executed, enables the client platform to monitor download operations performed by the client platform and to obtain a shadow image for a digital content item from a DRM blockchain, in response to an operation to download the digital content item from a remote source. The shadow image comprises a hash of the digital content item and copyright policy settings to indicate security constraints for the digital content item. The client platform may automatically determine whether the copyright policy settings for the digital content item allow modification of the digital content item. A user may be allowed to create a modified version of the digital content item only if the copyright policy settings allow modification of the digital content item. Other embodiments are described and claimed.
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- 1. A client platform to support digital rights management, the client platform comprising:
a processor; at least one machine-accessible storage medium responsive to the processor; and a digital rights management (DRM) engine in the machine-accessible storage medium, wherein the DRM engine, when executed by the processor, enables the client platform to:
monitor download operations performed by the client platform;
in response to an operation to download a digital content item from a remote source, obtain a shadow image for the digital content item from a DRM blockchain, wherein the shadow image comprises (a) a hash of the digital content item and (b) copyright policy settings to indicate security constraints for the digital content item;
after obtaining the shadow image for the digital content item, automatically determine whether the copyright policy settings for the digital content item allow modification of the digital content item; and
enable a user of the client platform to create a modified version of the digital content item only if the copyright policy settings allow modification of the digital content item.
- 8. An apparatus to support digital rights management, the apparatus comprising:
at least one non-transitory machine-accessible storage medium; and a digital rights management (DRM) engine in the machine-accessible storage medium, wherein the DRM engine, when executed by a processor of a client platform, enables the client platform to:
monitor download operations performed by the client platform;
in response to an operation to download a digital content item from a remote source, obtain a shadow image for the digital content item from a DRM blockchain, wherein the shadow image comprises (a) a hash of the digital content item and (b) copyright policy settings to indicate security constraints for the digital content item;
after obtaining the shadow image for the digital content item, automatically determine whether the copyright policy settings for the digital content item allow modification of the digital content item; and
enable a user of the client platform to create a modified version of the digital content item only if the copyright policy settings allow modification of the digital content item.
- 15. A method to support digital rights management, the method comprising:
at a client platform, monitoring download operations performed by the client platform; in response to an operation to download a digital content item from a remote source, obtaining a shadow image for the digital content item from a DRM blockchain, wherein the shadow image comprises (a) a hash of the digital content item and (b) copyright policy settings to indicate security constraints for the digital content item; after obtaining the shadow image for the digital content item, automatically determining whether the copyright policy settings for the digital content item allow modification of the digital content item; and enabling a user of the client platform to create a modified version of the digital content item only if the copyright policy settings allow modification of the digital content item.
