公开(公告)号：US20210029123A1

公开(公告)日：2021-01-28

申请号：US16766437

申请日：2018-11-20

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： Iain MONTEATH ,  Joshua DANIEL ,  Jonathan TATE

IPC: H04L29/06 ,  G05B19/4099 ,  G06F16/18

Abstract: 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.