Abstract: Some embodiments provide an independent authentication system for authenticating entities that have registered accounts across different online service providers on behalf of the service providers. The authentication system maintains a database of previously verified entity information. A service provider requests authentication by providing the authentication system with unverified and basic identifying information used by an entity when registering with the service provider. The authentication system attempts to match the registration information against previously verified information for a known entity. When a match is found, the authentication system generates a series of challenge questions. The questions are submitted to the entity through the service provider and answers are processed in order to authenticate the entity.

Abstract: Some embodiments provide an independent authentication system for authenticating entities that have registered accounts across different online service providers on behalf of the service providers. The authentication system maintains a database of previously verified entity information. A service provider requests authentication by providing the authentication system with unverified and basic identifying information used by an entity when registering with the service provider. The authentication system attempts to match the registration information against previously verified information for a known entity. When a match is found, the authentication system generates a series of challenge questions. The questions are submitted to the entity through the service provider and answers are processed in order to authenticate the entity.

Abstract: Some embodiments provide an accurate and real-time account of an entity's verification status and credibility from transaction data. Some embodiments verify the entity's operational status by aggregating transaction data involving the entity and by determining if the transaction data satisfies some threshold number of transactions within a given time frame. If the threshold is satisfied, the entity is verified to be active and operational and have a “pulse”. The pulse can be used to scrub directories or marketing lists. Some embodiments derive the entity's credibility by monitoring for increases or decreases in the transaction data, wherein increases or decreases can be identified from changes in the transaction volume, changes in average transaction price, and/or changes in price of a good or service from one monitored interval to another. Some embodiments derive entity credibility by comparing those changes to changes in one or more competitors' transaction data.

Abstract: Some embodiments provide an independent authentication system for authenticating entities that have registered accounts across different online service providers on behalf of the service providers. The authentication system maintains a database of previously verified entity information. A service provider requests authentication by providing the authentication system with unverified and basic identifying information used by an entity when registering with the service provider. The authentication system attempts to match the registration information against previously verified information for a known entity. When a match is found, the authentication system generates a series of challenge questions. The questions are submitted to the entity through the service provider and answers are processed in order to authenticate the entity.

Abstract: Some embodiments provide an independent authentication system for authenticating entities that have registered accounts across different online service providers on behalf of the service providers. The authentication system maintains a database of previously verified entity information. A service provider requests authentication by providing the authentication system with unverified and basic identifying information used by an entity when registering with the service provider. The authentication system attempts to match the registration information against previously verified information for a known entity. When a match is found, the authentication system generates a series of challenge questions. The questions are submitted to the entity through the service provider and answers are processed in order to authenticate the entity.