Paper Citation Record · LEDGER

Universal Interferometric Signatures of a Black Hole's Photon Ring

As of 13 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 35 inbound Pith citation observations for arXiv:1907.04329.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
1907.04329 v2

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measured 0 of 0 reference resolution

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measured 35 of 35 standing notices

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Source: scholarly_work_events, retraction_status_cache, observed 2026-08-13T06:32:02.005865+00:00

measured 35 of 35 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-12T14:40:04.082150Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: arxiv_reference, observed 2026-07-04T04:59:35.921956Z

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Outbound references

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Pith citing papers

Observation bfe204c8-d5a8-40e3-8c67-4b7ff5898897 · inbound

Influence of Observer Inclination and Spacetime Structure on Photon Ring Observables cites this paper.

Influence of Observer Inclination and Spacetime Structure on Photon Ring Observables Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 18

Resolution: unresolved; no resolver link, observed 2026-08-12T14:40:04.082150Z

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Observation d5812461-2d50-427a-9e07-5d024acdde1d · inbound

M87: a cosmic laboratory for deciphering black hole accretion and jet formation cites this paper.

M87: a cosmic laboratory for deciphering black hole accretion and jet formation Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 137

Resolution: unresolved; no resolver link, observed 2026-08-11T19:13:04.538899Z

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Observation 87f33b06-3a44-4317-be65-b07ca016a3e5 · inbound

Bounds for Lyapunov exponent of circular light orbits in black holes cites this paper.

Bounds for Lyapunov exponent of circular light orbits in black holes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 19

Resolution: unresolved; no resolver link, observed 2026-08-11T16:21:20.055182Z

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Observation 4f623724-d3ba-41cb-8751-d38e464a0207 · inbound

Towards a Non-singular Paradigm of Black Hole Physics cites this paper.

Towards a Non-singular Paradigm of Black Hole Physics Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 219

Resolution: unresolved; no resolver link, observed 2026-08-10T21:15:41.377074Z

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Unavailable: canonical work link unavailable.

Observation 6d4f2435-04a1-4e82-a270-db388ca5a0b8 · inbound

Method for Determining the Parameters of a Ring-like Structure from the Visibility Function Shape cites this paper.

Method for Determining the Parameters of a Ring-like Structure from the Visibility Function Shape Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 14

Resolution: unresolved; no resolver link, observed 2026-08-09T10:16:07.970556Z

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Unavailable: canonical work link unavailable.

Observation 646dea3a-dd9e-49b6-a911-f9222e4d5eb7 · inbound

Analyzing Deflection Angles and Photon Sphere Dynamics of Magnetically Charged Black Holes in Nonlinear Electrodynamic cites this paper.

Analyzing Deflection Angles and Photon Sphere Dynamics of Magnetically Charged Black Holes in Nonlinear Electrodynamic Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 119

Resolution: unresolved; no resolver link, observed 2026-08-08T23:50:42.893399Z

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Unavailable: canonical work link unavailable.

Observation 5afd7557-0567-45f2-8f42-a21c3f9393d0 · inbound

Modified theories of gravity at different curvature scales cites this paper.

Modified theories of gravity at different curvature scales Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 286

Resolution: unresolved; no resolver link, observed 2026-08-08T12:50:18.254091Z

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Unavailable: canonical work link unavailable.

Observation 0c6372c5-cad0-4004-a50d-36805a668d86 · inbound

Testing Extended Theories of Gravity via Black Hole Photon Rings cites this paper.

Testing Extended Theories of Gravity via Black Hole Photon Rings Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 22

Resolution: unresolved; no resolver link, observed 2026-08-07T13:46:30.606156Z

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Observation e73f2b95-58d4-4703-a1c9-a5ef8792936d · inbound

Black hole spectroscopy: from theory to experiment cites this paper.

Black hole spectroscopy: from theory to experiment Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 270

Resolution: verified exact; arxiv_id, observed 2026-05-12T01:31:23.767855Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 7d8dbb72-9fb6-4971-b37e-c3144d8f66b8 · inbound

Photon rings in a holographic toy model cites this paper.

Photon rings in a holographic toy model Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 6

Resolution: unresolved; no resolver link, observed 2026-08-07T05:29:37.866860Z

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Unavailable: canonical work link unavailable.

Observation f51d7818-80ef-4a36-9728-bbb67532b3b5 · inbound

Semi-analytical Study on the Polarized Images of Black Hole due to Frame Dragging cites this paper.

Semi-analytical Study on the Polarized Images of Black Hole due to Frame Dragging Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 4

Resolution: unresolved; no resolver link, observed 2026-08-05T18:08:33.157080Z

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Observation e4fb13ad-4d7d-4283-8001-52d1f696aaf5 · inbound

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes cites this paper.

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 82

Resolution: verified exact; arxiv_id, observed 2026-05-16T13:37:57.115361Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 2b21a322-225c-4098-892d-3e067556d45f · inbound

Black Hole Mergers as the Fastest Photon Ring Scramblers cites this paper.

Black Hole Mergers as the Fastest Photon Ring Scramblers Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 27

Resolution: unresolved; no resolver link, observed 2026-08-02T18:36:40.617286Z

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Unavailable: canonical work link unavailable.

Observation ad1d4bbf-5a4b-46db-b7ff-12a893f0462b · inbound

Critical Behavior of Photon Rings in Kerr-Bertotti-Robinson Spacetime cites this paper.

Critical Behavior of Photon Rings in Kerr-Bertotti-Robinson Spacetime Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 58

Resolution: unresolved; no resolver link, observed 2026-08-02T17:32:16.211169Z

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Unavailable: canonical work link unavailable.

Observation ab65542a-3043-49bf-97ef-28f65d7b18f0 · inbound

Observational constraints on nonlocal black holes via gravitational lensing cites this paper.

Observational constraints on nonlocal black holes via gravitational lensing Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 88

Resolution: verified exact; arxiv_id, observed 2026-05-10T14:15:29.656164Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 93c14518-f8f0-4d3f-99b0-7ff08d6498f6 · inbound

GRMHD accretion beyond the black hole paradigm: Light from within the shadow cites this paper.

GRMHD accretion beyond the black hole paradigm: Light from within the shadow Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 36

Resolution: verified exact; arxiv_id, observed 2026-05-10T10:04:06.813748Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 3b1a08ec-4428-42e2-b87a-539f55048458 · 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 Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 31

Resolution: verified exact; arxiv_id, observed 2026-05-10T08:27:51.969440Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 41ab774b-f277-4d38-b813-655f1f961016 · inbound

Strong-field signatures of a regular black hole in an Einasto dark matter halo cites this paper.

Strong-field signatures of a regular black hole in an Einasto dark matter halo Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 12

Resolution: verified exact; arxiv_id, observed 2026-05-11T23:01:22.323937Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation f3d3a6a6-2243-45b0-940e-26d64497713d · inbound

A note on methods for computing the critical curve of Kerr-like black holes cites this paper.

A note on methods for computing the critical curve of Kerr-like black holes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 16

Resolution: verified exact; arxiv_id, observed 2026-05-11T16:16:06.684844Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 989c9446-9e47-49b6-a1ea-38e5b24ca390 · 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 Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 6

Resolution: verified exact; arxiv_id, observed 2026-05-12T06:31:29.558262Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 85b6d36f-4eb8-4c72-a59a-a9e616f2a734 · inbound

Light Propagation Prescriptions for Black Hole Movies cites this paper.

Light Propagation Prescriptions for Black Hole Movies Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 21

Resolution: verified exact; arxiv_id, observed 2026-05-14T20:19:28.409023Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation af6a52f9-9935-48f0-a25d-9c48aadf23d7 · inbound

Ringdown and lensing of triple systems cites this paper.

Ringdown and lensing of triple systems Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 118

Resolution: verified exact; arxiv_id, observed 2026-05-21T01:59:23.173432Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 8fc2c746-ae2b-4f90-8d11-094e98ae1ab2 · inbound

Ringdown and lensing of triple systems cites this paper.

Ringdown and lensing of triple systems Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 118

Resolution: unresolved; no resolver link, observed 2026-08-02T13:41:13.017155Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation d88705cd-cc81-443b-8306-150d43f1d7b0 · inbound

Shadow, acoustic redshift, and transfer observables of Lorentz-violating rotating acoustic black holes cites this paper.

Shadow, acoustic redshift, and transfer observables of Lorentz-violating rotating acoustic black holes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 48

Resolution: verified exact; arxiv_id, observed 2026-06-29T12:53:27.266097Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation e8a69505-7028-4ff1-be2f-648a5e7c5771 · inbound

Black Hole Photon Rings Saturate the Quantum Chaos Bound cites this paper.

Black Hole Photon Rings Saturate the Quantum Chaos Bound Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 13

Resolution: verified exact; arxiv_id, observed 2026-06-29T14:13:30.731805Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation cf72e639-cba0-406e-8278-37eda776bd99 · inbound

Photon spheres in dynamical space-times cites this paper.

Photon spheres in dynamical space-times Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 54

Resolution: verified exact; arxiv_id, observed 2026-07-01T23:56:23.933321Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 0b3a3e32-55b6-448c-b4e3-9e19fa268619 · inbound

Detectability of secondary images from flares near Sgr A* with mock GRAVITY data cites this paper.

Detectability of secondary images from flares near Sgr A* with mock GRAVITY data Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 56

Resolution: verified exact; arxiv_id, observed 2026-07-02T14:17:03.319312Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation d56a2518-1b8a-4167-84c0-484d775c6823 · inbound

Broadened Lensing Rings of Compact Boson Stars: Enhanced Imprint of Accretion Flow in Images and Visibilities cites this paper.

Broadened Lensing Rings of Compact Boson Stars: Enhanced Imprint of Accretion Flow in Images and Visibilities Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 8

Resolution: verified exact; arxiv_id, observed 2026-07-03T12:48:11.492151Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 017bb292-c6f8-4977-a877-bd1e7b264c46 · 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 Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 65

Resolution: verified exact; arxiv_id, observed 2026-07-04T04:59:35.923926Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 6681afef-d1c3-49d0-baba-3531cab1be3f · inbound

On Black Holes Surrounded by Radiation: I. Classical Considerations cites this paper.

On Black Holes Surrounded by Radiation: I. Classical Considerations Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 5

Resolution: verified exact; arxiv_id, observed 2026-07-01T12:45:44.806952Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-13T06:32:02.005865+00:00.

Observation 0ac632a2-2404-41cd-a8a3-a1ca2ef0faff · 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 Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 45

Resolution: unresolved; no resolver link, observed 2026-07-14T10:10:18.422736Z

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Unavailable: canonical work link unavailable.

Observation d1b886db-e642-46a0-ab4d-00cc21bcd4af · 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 Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 63

Resolution: unresolved; no resolver link, observed 2026-08-02T03:10:33.668133Z

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Unavailable: canonical work link unavailable.

Observation 8ebac1cf-7d7e-4b4a-ba73-22d6be645670 · inbound

Signatures of Lorentz violation in bright ring for Sgr A* images by radiation ineffective accretion flows cites this paper.

Signatures of Lorentz violation in bright ring for Sgr A* images by radiation ineffective accretion flows Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 18

Resolution: unresolved; no resolver link, observed 2026-08-06T00:18:28.938779Z

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Unavailable: canonical work link unavailable.

Observation 54e859d5-e4e4-4af4-8b96-562d6283da5b · inbound

The glow of eternal black holes cites this paper.

The glow of eternal black holes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 46

Resolution: unresolved; no resolver link, observed 2026-08-08T16:43:59.993887Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f9e2fec3-d7df-4758-98f0-8cb7cf3ef07e · inbound

Thermal Origin of Black Hole Quasinormal Modes cites this paper.

Thermal Origin of Black Hole Quasinormal Modes Universal Interferometric Signatures of a Black Hole's Photon Ring

Reference 17

Resolution: unresolved; no resolver link, observed 2026-08-11T10:41:13.039446Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.