Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 19 inbound Pith citation observations for arXiv:2008.03879.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-09T06:31:02.800959+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-08T16:43:59.999133Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-07-04T04:59:36.080582Z
Reference resolution
0 of 0 outbound references displayed
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External citation measurements
No source-named external measurement is stored.
Outbound references
No outbound reference observations are available for this paper version.
Pith citing papers
Observation 80467e47-b737-4f10-92c1-ede882a021b0 · inbound
Infinite-dimensional symmetries in plane wave spacetimes cites this paper.
Infinite-dimensional symmetries in plane wave spacetimes The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 23
- Resolution
- metadata mismatch
- arxiv_id, observed 2026-05-09T07:21:28.532815Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation c15a6130-8ac5-4435-851a-9e337793956d · inbound
Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes cites this paper.
Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 85
- Resolution
- verified exact
- arxiv_id, observed 2026-05-16T13:37:57.095152Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation a69ceafa-06c3-4df5-b17b-9160fad18337 · inbound
Light rings, gravitational lensing, and ISCOs of exotic compact objects in Einstein-scalar-Maxwell theories cites this paper.
Light rings, gravitational lensing, and ISCOs of exotic compact objects in Einstein-scalar-Maxwell theories The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 46
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T20:23:15.950495Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 7fe0396b-e041-491f-9121-25d6018c284e · inbound
Strong-deflection expansion of the deflection angle near a degenerate photon sphere cites this paper.
Strong-deflection expansion of the deflection angle near a degenerate photon sphere The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 12
- Resolution
- verified exact
- arxiv_id, observed 2026-05-15T14:46:08.116571Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation af550413-2d36-4298-be82-85d917d5f951 · inbound
Probing Lorentz-violating effects via precession and accretion disk images of a rotating bumblebee black hole cites this paper.
Probing Lorentz-violating effects via precession and accretion disk images of a rotating bumblebee black hole The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 93
- Resolution
- unresolved
- no resolver link, observed 2026-07-13T15:01:53.533153Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation ffa8942c-4f00-4ab6-8566-9a3145626236 · inbound
Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field cites this paper.
Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 27
- Resolution
- verified exact
- arxiv_id, observed 2026-05-10T09:08:26.074549Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 4ee63c4e-1404-4aa4-ad1d-b4472799970c · inbound
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics cites this paper.
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 75
- Resolution
- verified exact
- arxiv_id, observed 2026-05-11T20:01:09.429849Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 2a722770-d97e-43aa-a781-642c9a60cb04 · inbound
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics cites this paper.
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 75
- Resolution
- verified exact
- arxiv_id, observed 2026-05-11T04:41:01.452103Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation f0322dfc-9f3d-403f-aef9-af9dc6b2fd17 · inbound
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics cites this paper.
Photon Propagation and Black Hole Imaging in Kruglov Nonlinear Electrodynamics The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 75
- Resolution
- unresolved
- no resolver link, observed 2026-07-12T18:30:37.013457Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation a8422f28-949e-48c6-8521-cae201559f25 · inbound
Optical Appearance of the Kerr-Bertotti-Robinson Black Hole with a Magnetically Driven Synchrotron Emissivity Model cites this paper.
Optical Appearance of the Kerr-Bertotti-Robinson Black Hole with a Magnetically Driven Synchrotron Emissivity Model The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 12
- Resolution
- verified exact
- arxiv_id, observed 2026-05-12T06:36:23.580119Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation 0917b221-060e-4496-9c3d-d0cdd6c530cd · inbound
A perturbative geometric approach for photon spheres, massive particle surfaces and black hole shadows with mass variations cites this paper.
A perturbative geometric approach for photon spheres, massive particle surfaces and black hole shadows with mass variations The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 15
- Resolution
- malformed identifier
- arxiv_id, observed 2026-06-28T19:52:35.796513Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation a39a49ef-a5b9-4c63-abb4-74b90c699b6e · inbound
Constitutive birefringence and critical curves in the rotating Garc\'ia--D\'iaz black hole cites this paper.
Constitutive birefringence and critical curves in the rotating Garc\'ia--D\'iaz black hole The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 66
- Resolution
- verified exact
- arxiv_id, observed 2026-07-04T04:59:36.082370Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation c87e2da8-6c91-4b64-9e55-657be0c48d4f · inbound
Polarization-dependent observational signatures of Weyl-coupled photons around a black hole cites this paper.
Polarization-dependent observational signatures of Weyl-coupled photons around a black hole The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 43
- Resolution
- unresolved
- no resolver link, observed 2026-07-14T10:10:18.422736Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation baaca335-ad6f-4a48-a13f-c33de76f7627 · inbound
Regular black holes with Minkowskian cores: causal structure and observational degeneracy cites this paper.
Regular black holes with Minkowskian cores: causal structure and observational degeneracy The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 68
- Resolution
- unresolved
- no resolver link, observed 2026-07-14T09:49:12.477717Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8e06a7c0-1f73-4d0c-b6dd-0f397779e04f · inbound
Regular black holes with Minkowskian cores: causal structure and observational degeneracy cites this paper.
Regular black holes with Minkowskian cores: causal structure and observational degeneracy The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 78
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T07:17:49.231889Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 56834e8e-8322-478b-afdc-e5d873bc974d · inbound
Evaporating cosmologically coupled black holes cites this paper.
Evaporating cosmologically coupled black holes The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 14
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T03:35:48.087827Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation c72359d8-7014-45c5-b97c-e82ca1415689 · inbound
Dark matter environments and safeguards for spacetime inference from horizon scale interferometry cites this paper.
Dark matter environments and safeguards for spacetime inference from horizon scale interferometry The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 80
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T03:10:33.737029Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation bd925e42-83ad-41d2-bf1a-bf6ab294d9c6 · inbound
Junction Conditions, Radial Stability, Thermodynamics, Optical Geometry and Appearance of Polymer-Quintessence Thin-Shell Wormholes cites this paper.
Junction Conditions, Radial Stability, Thermodynamics, Optical Geometry and Appearance of Polymer-Quintessence Thin-Shell Wormholes The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 61
- Resolution
- unresolved
- no resolver link, observed 2026-07-30T18:14:20.906961Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation afc2c353-78f2-4561-9f17-d9c8744bec4b · inbound
The glow of eternal black holes cites this paper.
The glow of eternal black holes The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity
Reference 47
- Resolution
- unresolved
- no resolver link, observed 2026-08-08T16:43:59.999133Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.