New pending patent applications are published by the USPTO on Thursdays. Both of today's Spotlight Applications continue our theme of blockchains (smart contracts, distributed ledgers) and rights management broadly construed. Assigned to T-Mobile, the first application discloses techniques for content delivery systems that use blockchain to manage content. Assigned to British Telecom (GB), the second application discloses techniques for controlling access to a digital asset specifying how an artefact is to be rendered.
20210027265, "Content delivery systems that use blockchain to manage content," assigned to T-Mobile.
A content delivery network uses blockchain to manage content. In various implementations, the content delivery network may specify access rights to content in a blockchain network and allow a content access device to access content when the blockchain network is unavailable using a local copy of the blockchain and reconciling upon reconnection. In some implementations, the content delivery network may track storage of available content in a blockchain and use the blockchain to provide different copies of requested items when the different copies can be provided faster, more efficiently, at a lower cost, and so on. In yet other implementations, the content delivery network may record changes to properties of content in a blockchain and evaluate received disputes by using the blockchain to determine whether a change to the properties of the content occurred prior to the dispute.
20210029123, "Access control for digital assets," assigned to British Telecom (GB)
A computer implemented method of controlling access to a digital asset specifying how an artefact is to be rendered, the method including receiving the digital asset and an indication of a first transaction in a decentralized sequential transactional database; verifying the digital asset by evaluating a digital hash of the asset to compare with a hash stored in the first transaction and, responsive to the verification, securely storing the digital asset; generating a second transaction in the database to indicate the availability of the digital asset for rendering the artefact; receiving a request to access the digital asset by a requesting renderer, the request including an indication of a third transaction in the database; accessing the third transaction and responsive to a determination that the third transaction indicates that the requesting renderer is authorized to access the digital asset for rendering the artefact, securely communicating the digital asset to the requesting renderer.