Specifies an agent specialist responsible for shaping the expression in an appropriate format. Often the primary agent responsible for ensuring the quality of the representation. The curator may be different from the author (pav:authoredBy) and creator of the digital resource (pav:createdBy). The curator may in some cases be a software agent, for instance text mining software which adds hyperlinks for recognized genome names. The date of curating can be expressed using pav:curatedOn - note however in the case of multiple curators that there is no relationship in PAV identifying which agent contributed when or what. If capturing such lineage is desired, it should be additionally expressed using PROV relationships like prov:qualifiedAttribution or prov:wasGeneratedBy.