Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 20 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 4 inbound Pith citation observations for arXiv:2202.03809.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-19T06:32:44.657259+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-10T15:28:04.588755Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-05-16T12:02:51.005621Z
0 of 0 outbound references displayed
External citation measurements
No source-named external measurement is stored.
No outbound reference observations are available for this paper version.
Observation f03b6e2d-e4c7-4c79-a3df-0cb7b2b2abb6 · inbound
Herrera Complexity and Shadows of Spherically Symmetric Compact Objects Light ring images of double photon spheres in black hole and wormhole space-times
Reference 27
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 2b126cc1-b2bf-4393-a81c-06e0bf154109 · inbound
Gravitational Lensing by Black Holes in Einstein-nonlinear Electrodynamic Theories with Multiple Photon Spheres Light ring images of double photon spheres in black hole and wormhole space-times
Reference 66
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation baf154a5-c0db-4f89-941d-5b0bb3d500ec · inbound
Roche limit and stellar disruption in the Simpson--Visser spacetime Light ring images of double photon spheres in black hole and wormhole space-times
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.
Observation e1225e24-3b2d-4fca-9c2d-80acfd1bf2eb · inbound
Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field Light ring images of double photon spheres in black hole and wormhole space-times
Reference 89
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.