Write the complete number
Write the SPSN in uppercase and keep all the dashes, for example SPSN-1-000001-9. Do not shorten it or change any part of the number.
Inside and alongside the publication
Place the SPSN on a copyright or publication-information page, in an e-book’s details, on the publication’s web page, or in catalogue and distribution records. Keep it close to the title, edition and format it identifies.
Share the public record
Share the public page at selfpublishing.sn/spsn/[SPSN]/, or ask readers to use the SPSN lookup. This page is the official place to check the number, its status and the publication details.