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Paper Citation Record · LEDGER

Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 21 inbound Pith citation observations for arXiv:2106.00683.

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

pith.paper-citation-record.v1
2106.00683 v1

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 21 of 21 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-09T06:31:02.800959+00:00

measured 21 of 21 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-07T13:46:30.411164Z

measured 0 of 1 external citation measurements

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

Source: arxiv_reference, observed 2026-06-29T14:13:30.778296Z

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 c9502183-ba5a-4968-b5e7-7c524b6d7bea · inbound

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

Testing Extended Theories of Gravity via Black Hole Photon Rings Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 20

Resolution
unresolved
no resolver link, observed 2026-08-07T13:46:30.411164Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-07T13:46:30.411164Z digest=sha256:dd83a759ae7693f5f6c08d99b282eb033734ce45916dc163e42778583221b38d

Observation 07be8668-a4c0-4dd2-b673-419fa938e1de · inbound

Perturbations of Plane Waves and Quadratic Quasinormal Modes on the Lightring cites this paper.

Perturbations of Plane Waves and Quadratic Quasinormal Modes on the Lightring Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 76

Resolution
unresolved
no resolver link, observed 2026-08-05T10:55:29.885586Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-05T10:55:29.885586Z digest=sha256:f46eda38841d7e535473494f68b6a8b447f5a05175449dbfba5ec76b72311d85

Observation 790b0862-f7e3-4f8e-a4b5-c9f475f77261 · inbound

Imaging and Polarimetric Signatures of Konoplya-Zhidenko Black Holes with Various Thick Disk cites this paper.

Imaging and Polarimetric Signatures of Konoplya-Zhidenko Black Holes with Various Thick Disk Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 26

Resolution
metadata mismatch
arxiv_id, observed 2026-05-18T06:12:26.019991Z

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.

source=pdf_text observed=2026-05-18T06:11:22.058415Z digest=sha256:4293301c0721063a6c16973bd338d0a1cd955c060236bec036fe5d18ecf6a7b0

Observation dee5648b-6b5f-4748-b425-61197cc37661 · inbound

Critical phenomenon inside asymptotically flat black holes with spontaneous scalarization cites this paper.

Critical phenomenon inside asymptotically flat black holes with spontaneous scalarization Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 32

Resolution
verified exact
arxiv_id, observed 2026-05-25T07:40:28.992308Z

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.

source=pdf_text observed=2026-05-25T07:38:49.408156Z digest=sha256:4be11581b6e5b23c8f360a541677f00248a5e2038c2f54123591b79970bd0375

Observation 2c12b01c-fe73-4fe9-9f2b-e10f9916b548 · inbound

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

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 86

Resolution
verified exact
arxiv_id, observed 2026-05-16T13:37:57.090576Z

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.

source=pdf_text observed=2026-05-16T13:33:18.133767Z digest=sha256:0288b230a1ceb061ce5be61c03a229c47627bf2852fa0a61c500fcad3d2396a2

Observation 9474fbb5-3921-4c56-af76-202ee3d2bedb · inbound

Observational Signatures of Rotating Ay\'{o}n-Beato-Garc\'{i}a Black Holes: Shadows, Accretion Disks and Images cites this paper.

Observational Signatures of Rotating Ay\'{o}n-Beato-Garc\'{i}a Black Holes: Shadows, Accretion Disks and Images Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 78

Resolution
verified exact
arxiv_id, observed 2026-05-15T08:35:19.022413Z

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.

source=pdf_text observed=2026-05-15T08:32:21.730679Z digest=sha256:de8399e6a8e2bd8af08ccaa9f94ea85b54683eb518b3fc316e3b83e9e28ae0fd

Observation 03416d9c-3d8b-4257-9eb6-8b2fa13150e0 · 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 Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 102

Resolution
unresolved
no resolver link, observed 2026-07-13T15:01:53.533153Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-07-13T15:01:53.533153Z digest=sha256:40d507d1c107bbb977eff688154459e61ca8051e37e8dcd4b0ae63deada78f06

Observation e2e522b1-7f2b-4e54-9f34-7c8d3ea86158 · inbound

Unveiling Inner Shadows and Polarization Signatures of Rotating Einstein-Gauss-Bonnet Black Holes cites this paper.

Unveiling Inner Shadows and Polarization Signatures of Rotating Einstein-Gauss-Bonnet Black Holes Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 57

Resolution
verified exact
arxiv_id, observed 2026-05-11T05:45:58.070715Z

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.

source=pdf_text observed=2026-05-10T17:57:51.874808Z digest=sha256:f9fbae97fea6490c3165b570e773af5baf631f1d2ce5fa94fe921541cadd04c6

Observation 38f7384f-5f57-4455-be90-b2b17c37bced · inbound

Optical images of Kerr-Sen black hole illuminated by thick accretion disks cites this paper.

Optical images of Kerr-Sen black hole illuminated by thick accretion disks Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 76

Resolution
metadata mismatch
arxiv_id, observed 2026-05-11T06:30:58.327344Z

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.

source=pdf_text observed=2026-05-10T17:37:55.554203Z digest=sha256:5fc11cb615b2df6433bdb4a7bc444ba188aa4ba1950d1b9f97badfee7a1a126e

Observation ea560b53-72f2-461f-be3e-6a95e4d45bd6 · inbound

Probing Kalb-Ramond gravity with charged rotating black holes: constraints from EHT observations cites this paper.

Probing Kalb-Ramond gravity with charged rotating black holes: constraints from EHT observations Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 87

Resolution
verified exact
arxiv_id, observed 2026-05-10T13:15:26.463298Z

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.

source=pdf_text observed=2026-05-10T13:14:45.286559Z digest=sha256:94a45074b7d735b9d4e2ad91e08cb3f765ad73d167f72ca8e246fbe0d84350cc

Observation 60c78f88-78ea-4247-9fb9-38f0ee16a82b · 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 Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 64

Resolution
verified exact
arxiv_id, observed 2026-05-10T10:04:06.710804Z

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.

source=pdf_text observed=2026-05-10T10:00:30.314987Z digest=sha256:c61200fc201ade0f7fcbd0b4e625945cc25c3c0eb24308b3e5352d06feec862f

Observation 9833f14f-0f2f-4270-93c1-631195f062cc · inbound

Reshaping the inner shadow of a Kerr black hole by a torn accretion disk cites this paper.

Reshaping the inner shadow of a Kerr black hole by a torn accretion disk Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 49

Resolution
verified exact
arxiv_id, observed 2026-05-11T13:56:02.840701Z

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.

source=pdf_text observed=2026-05-09T23:55:34.813729Z digest=sha256:bf7257c001e3009ee6bd12510f4bbbf8e6e6b1505006842d895bfe6b85b68013

Observation f16e65a6-5c81-4163-a0a7-988b6206320f · 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 Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 45

Resolution
verified exact
arxiv_id, observed 2026-05-11T23:01:22.245967Z

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.

source=pdf_text observed=2026-05-08T01:51:23.065312Z digest=sha256:f7674cf5c1130dcc834c1923ca9486ad9ec68d3d2cbe7dce57df319c1ab88287

Observation 22890194-1386-4b36-b697-9aaa9a2480bf · 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 Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 70

Resolution
verified exact
arxiv_id, observed 2026-05-12T06:31:29.501620Z

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.

source=pdf_text observed=2026-05-12T04:10:20.941850Z digest=sha256:7b9b11d10705fa931f0eaab6dff8d5c77cf8b71d0e8aba74d7a74a4d350f3fb2

Observation 0d9f7691-02cb-41e9-a74a-e1c9b9df482c · inbound

Light Propagation Prescriptions for Black Hole Movies cites this paper.

Light Propagation Prescriptions for Black Hole Movies Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 20

Resolution
metadata mismatch
arxiv_id, observed 2026-05-14T20:19:28.402562Z

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.

source=pdf_text observed=2026-05-14T20:14:39.419190Z digest=sha256:4d4f4ced1d566acfe7bf9b8f5a1faa62febd5f92b6a71312539484c8cb907a3c

Observation b0e5a777-277b-4942-b3c8-1954edd98d9c · inbound

Distorting Kerr Images with Parity-Odd Scalar Hair cites this paper.

Distorting Kerr Images with Parity-Odd Scalar Hair Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 40

Resolution
verified exact
arxiv_id, observed 2026-06-29T11:13:21.073980Z

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.

source=pdf_text observed=2026-06-29T11:05:17.990545Z digest=sha256:b68ec5c5d0958c9c2aad806607f8da9ae61180a7e61ceda266f07b6cbb455be3

Observation cc25868c-30e2-4b35-9281-d7fb1a524069 · inbound

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

Black Hole Photon Rings Saturate the Quantum Chaos Bound Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 12

Resolution
verified exact
arxiv_id, observed 2026-06-29T14:13:30.779446Z

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.

source=pdf_text observed=2026-06-29T06:48:15.636579Z digest=sha256:d5d95e8134b9121ab4638018965a91e66ba6ee3d6ea211af711e5b7c28a71e1f

Observation 2d5c7891-1fbd-44cf-a8e1-2fccf05a40a2 · inbound

Novel extended inner shadow in images of Johannsen-Psaltis black holes with thin accretion disks cites this paper.

Novel extended inner shadow in images of Johannsen-Psaltis black holes with thin accretion disks Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 48

Resolution
unresolved
no resolver link, observed 2026-08-01T14:34:28.905369Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-01T14:34:28.905369Z digest=sha256:8ece05a29648646ee3daba9ded8648ee3a6ce98bc4f7b8bbd0d811e735fd2553

Observation 70191e4a-38ed-43eb-ba9e-91560748e178 · inbound

Plasma-Induced Modifications of the Shadows of Rotating Bardeen Black Holes with Perfect Fluid Dark Matter cites this paper.

Plasma-Induced Modifications of the Shadows of Rotating Bardeen Black Holes with Perfect Fluid Dark Matter Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 8

Resolution
unresolved
no resolver link, observed 2026-08-01T13:23:17.038007Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-01T13:23:17.038007Z digest=sha256:f1cf34dcabaa1b956439ef2675026578e5bb4f2f5ee3ada401ffac8240aecc94

Observation b3cef1cf-a48b-4dfe-803c-ec94b2bc23b7 · inbound

Optical Images of the Braneworld Black Hole Surrounded by an Optically Thin Accretion Disk cites this paper.

Optical Images of the Braneworld Black Hole Surrounded by an Optically Thin Accretion Disk Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 15

Resolution
unresolved
no resolver link, observed 2026-08-03T13:23:56.282811Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-03T13:23:56.282811Z digest=sha256:8d29d3311a2c7661847d03f777b3d2269d16fe113742fd0dc1d4cae527d2f2b5

Observation 16dca896-2513-4615-9fc3-277202452bd0 · 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 Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon

Reference 69

Resolution
unresolved
no resolver link, observed 2026-08-06T00:18:33.948922Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T00:18:33.948922Z digest=sha256:a06bf5142ac9655db9900767d9c303be3e21a56fba968cce519be521ce680bd3