Retrieve the event↔dimension membership links — which events qualify or contribute to each actor's Sovereign Capability Profile (SCP) capability dimensions. Filter by actor (e.g. "US", "CN", "GB" — note GB, not UK), dimension (D1–D7), or event_id. Each link carries its link_type (qualifying_contributor = establishes the dimension vs capability_area = contributes to it), attribution (specific | general), and entity (the named asset, on qualifying links only); its identity and lifecycle — link_id (the stable handle, CL-{ACTOR}-{Dn}-{eventID}.{sequence}), created, scp_register_version (the register cycle it was assessed in), assessed_under (the methodology version in force at that assessment, which may be older than the dataset's current one), status, and on retired links status_changed; and at full tier qualification_basis, rationale and note (the deep qualification analysis), status_reason (the assessed reasoning for a retirement), and provenance (construction-cohort marker). Sole-vs-multiple basis is derivable by counting qualifying_contributor links per actor×dimension (1 = sole; >1 = one of several) — links are never flattened to qualifies:yes/no. Active links are returned by default; retired links are never restored, and a relationship assessed afresh enters as a new link at the next sequence. Pass include_retired to receive the archive alongside the active links. The response carries a metadata block — totals by type, per-actor and per-dimension distributions, active/retired status_counts, met-dimension coverage figures, and the dataset's generation date and revision history — identical on both tiers; last_updated dates the most recent revision. For the higher-order signatures built from these links, use get_capability_signatures.