Local storage of information pedigrees

A method comprising:

• receiving, by a computing device, a request to identify progeny of a primary resource, the primary resource included in a document, wherein the progeny include one or more descendent resources of the primary resource, wherein the descendent resources of the primary resource represent a plurality of resources that derive one or more asserted facts from the primary resource, and wherein a primary identifier is associated with the primary resource, the primary identifier uniquely identifying the primary resource;
• selecting, by the computing device, an association from an index based on primary identifier, wherein the association comprises data associating the primary identifier, a descendent identifier, and a location identifier of the descendent resource, wherein the descendent identifier uniquely identifies a descendent resource, and wherein the association indicates the descendent resource derives an asserted fact from the one or more asserted facts from the primary resource;
• and
• identifying, by the computing device, the descendent resource based on the location identifier of the remote resource.

A client device comprising:

• a selection module configured to receive a request to assemble a pedigree that describes a history of origin of a primary resource, the primary resource included in a document, wherein the requested pedigree of the primary resource represents the history as a set of statements that describe relationships between the primary resource and a plurality of other resources from which an asserted fact of the primary resource was derived,
• wherein the selection module is operable to select a local pedigree fragment included in the document that specifies a first direct relationship between the primary resource and a first resource of the plurality of other resources, wherein the first direct relationship indicates that the asserted fact of the primary resource was derived from data of the first resource;
• and
• an assembly module configured to assemble the pedigree of the primary resource from the local pedigree fragment and output the assembled pedigree.

A client device configured to:

• receive a request to identify progeny of a primary resource, the primary resource included in a document, wherein the progeny include one or more descendent resources of the primary resource, wherein the descendent resources of the primary resource represent a plurality of resources that derive one or more asserted facts from the primary resource, and wherein a primary identifier is associated with the primary resource, the primary identifier uniquely identifying the primary resource;
• select an association from an index based on primary identifier, wherein the association comprises data associating the primary identifier, a descendent identifier, and a location identifier of the descendent resource, wherein the descendent identifier uniquely identifies a descendent resource, and wherein the association indicates the descendent resource derives an asserted fact from the one or more asserted facts from the primary resource;
• and
• identify the descendent resource based on the location identifier of the remote resource.