Abstract: A system and method for managing digital identities that in an aspect provides an identity governance service that enables a Web2 architecture user identity to be verifiably linked with a Web3 architecture user identity, and records the verified and signed association of the two identities on a blockchain or similar data block record. Then, either of these digital identities may be employed to execute a digital event or transaction, and where action by an agent of the user may also be taken on behalf of the user in an authentic manner. Recovery of lost digital keys can be achieved in an aspect without reliance on centralized digital authorities.

Abstract: A system and method for automated ad to ad space matching is provided. In some aspects the system and method generate automated digital ad content and modify the same in view of an ad in the context of an ad campaign whereby an analytics unit determines the resulting quantitative performance metrics or objective function resulting from the matching and the content generation steps of the invention. Generation and modification of publisher ad space is also provided in a cross-coupled concurrent fashion that optimizes a goal of the ad placement and promotion. An immutable authenticated environment using blockchain blocks records and provides transparent attribution of the promotion and contents.

Abstract: Among other things, a method performed by a certification authority includes receiving a request from a first entity for the first entity to conduct cryptocurrency transactions. The request includes information identifying the first entity and a public key of the first entity. A digital signature of the public key of the first entity is generated using an encryption key of the certification authority. A certification associated with the first entity is stored. The certification includes the digital signature and the public key of the first entity.