Patent ID: 11924524
Assignee: ROVI GUIDES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A system for securely distributing metadata using a blockchain, the system comprising:
control circuitry of a content creator computing device configured to:
generate a block for a distributed blockchain ledger, the block comprising an encrypted metadata item of a media asset;

communication circuitry of the content creator device configured to:
transmit, at a first time, the block for storage in the distributed blockchain ledger, wherein a copy of the distributed blockchain ledger is stored by the content creator device and a content distribution device;

wherein the control circuitry of the content creator device is further configured to:
generate a smart contract comprising: a decryption key for the encrypted metadata item and an identifier of the content distribution device; and

wherein the communication circuitry of the content creator device is further configured to:
transmit the smart contract for storage in the distributed blockchain ledger, wherein the smart contract is configured to be automatically executed at an execution time, to provide to the content distribution device with the decryption key for the encrypted metadata item, and wherein the execution time is selected to be later than the first time and before a time when the content distribution device that is configured to stream the media asset to end user devices is scheduled to update an Electronic Programming Guide (EPG) or Over-The-Top (OTT) streaming website with the metadata of the media asset.