Thanks to some sleuthing by Dana, David E. and Nga, a mystery has been unraveled. According to SCP:
“To request the cataloging of a single open access title not part of any specific collection send the request via the CDL Help Desk (firstname.lastname@example.org). Provide the URL for the resource and a statement requesting SCP cataloging. Note, these “unreviewed” cataloging requests are of lowest cataloging priority and will be done as resources are available.”
Artists of the World Online / Allgemeines Künstlerlexikon Online contains authoritative, up-to-date biographical information on more than one million artists, A-Z, from antiquity to the present with world-wide coverage for painters, graphic artists, sculptors, architects, designers, photographers, video and installation artists, artisans, etc. Important historical sources Thieme-Becker/Vollmer, the Nürnberger Künstlerlexikon and the Lexikon der Künstlerinnen are also included. New articles are published immediately and the content is regularly updated and expanded. In addition to the biography, articles contain information on the artist’s creative work, art historical significance, a selection of works with locations, exhibitions, and bibliographical references. Full-text searching is available.