Every link below is a live, indexable page referencing sickopsychofilms.com, carried by the 20261004023355 archived snapshot. Googlebot crawls this page and follows each outbound link to index the third-party pages too.
GSC "Request Indexing" is property-scoped, so third-party URLs can't be requested directly. This on-domain snapshot page is the mechanism: it is indexable and its outbound links carry the crawl to each backlink.