Paper Citation Record · LEDGER

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness

As of 18 August 2026, this Paper Citation Record lists 44 of 44 outbound references and 1 inbound Pith citation observation for arXiv:2606.09981.

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

pith.paper-citation-record.v1
2606.09981 v1

Coverage vector

measured 44 of 44 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-06-27T15:35:00.982605Z

measured 45 of 45 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-18T06:34:40.430872+00:00

measured 1 of 1 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-06-29T02:24:28.604288Z

measured 0 of 1 external citation measurements

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

Source: pith, observed 2026-07-01T18:15:58.134006Z

Reference resolution

44 of 44 outbound references displayed

verified exact36
verified fuzzy0
unresolved1
parse uncertain0
malformed identifier0
metadata mismatch7

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 932232ec-756f-4519-bf8c-0a45f7301300 · outbound

This paper cites A., et al.\ 2018, , 854, 1, 42.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness A., et al.\ 2018, , 854, 1, 42

Reference 1

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.223267Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 6ccde0d6-0f39-4ae7-bb69-82cfdbb2a32e · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 2

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.219896Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 02572d53-935a-4a83-9cf0-d40cb64f0d7d · outbound

This paper cites A., Clayton G.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness A., Clayton G

Reference 3

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.221611Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 61f2fdfa-980e-4c2e-bb06-32ff88d9c0fb · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 4

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.224976Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 297080a8-6674-4047-b4cf-6ee42536a4af · outbound

This paper cites Observational characteristics of accretion onto black holes.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Observational characteristics of accretion onto black holes

Reference 5

Resolution: metadata mismatch; local_arxiv, observed 2026-06-27T15:41:01.219720Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation b228907e-5031-4faa-92e1-31f41122198d · outbound

This paper cites C., Alston, W.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness C., Alston, W

Reference 6

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.214251Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 8e8c0546-1ac0-4983-9ad2-ddd873602920 · outbound

This paper cites 2014, SSRv, 183, 121, doi: 10.1007/s11214-014-0071-5.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness 2014, SSRv, 183, 121, doi: 10.1007/s11214-014-0071-5

Reference 7

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.298742Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 8a189a18-06ee-4670-a715-44e9311f09c8 · outbound

This paper cites an unresolved cited work.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Unresolved cited work

Reference 8

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.292864Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 0508a424-71cc-454f-b8c8-bfd69110cb13 · outbound

This paper cites Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Reference 9

Resolution: verified exact; local_arxiv, observed 2026-06-27T15:41:01.292671Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 27aa9cde-15f2-481b-bb3b-17874bb53f68 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 10

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.294381Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 5908601f-486b-4571-91b3-d8c74cc0a5bf · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 11

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.290405Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 4bc760f8-0286-4ae7-bc30-b6811f579638 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 12

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.288127Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation cc3afccd-b67d-4d09-b90a-3b422dcd9617 · outbound

This paper cites , keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness , keywords =

Reference 13

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.275455Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 0528211e-362b-468e-8598-c99fe4de5f64 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 14

Resolution: metadata mismatch; doi, observed 2026-06-27T15:41:01.277196Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 5ab76790-e8ea-447b-9857-c3c610107e5d · outbound

This paper cites M., Halpern, J.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness M., Halpern, J

Reference 15

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.279340Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 8adf278a-7a1e-400b-8030-57d9344988be · outbound

This paper cites M., Halpern, J.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness M., Halpern, J

Reference 16

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.283368Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation e445aa2b-78c1-4192-af9d-948de3b0d1a8 · outbound

This paper cites L., Wang, W.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness L., Wang, W

Reference 17

Resolution: unresolved; no resolver link, observed 2026-06-27T15:35:00.982605Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 784f12cb-dffa-4160-aed1-a381e6446601 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 18

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.277992Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation bb53b920-cdec-41e6-b0c4-0ce48a97fbb5 · outbound

This paper cites N., et al.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness N., et al

Reference 19

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.286128Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 82213523-1bf0-446e-a41e-bd7c2230b19b · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 20

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.272100Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 54e847f5-0db3-4811-960b-2a45e3c62d20 · outbound

This paper cites N., Hall, P.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness N., Hall, P

Reference 21

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.259074Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation b4237756-bfd1-48a9-a35a-8f889d3d38de · outbound

This paper cites Astronomy and Astrophysics , author =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Astronomy and Astrophysics , author =

Reference 22

Resolution: metadata mismatch; doi, observed 2026-06-27T15:41:01.262616Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 7796390d-2f7a-44aa-a904-38ee6627df79 · outbound

This paper cites L., Ivezic, Z., Kochanek, C.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness L., Ivezic, Z., Kochanek, C

Reference 23

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.257372Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation ff652b52-bf12-42ed-9294-b6965b73d37c · outbound

This paper cites M., et al.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness M., et al

Reference 24

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.260714Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation a76f4f22-d8f4-4f9f-b94f-841bde94f9b0 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 25

Resolution: metadata mismatch; doi, observed 2026-06-27T15:41:01.288312Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 0577d3df-dafe-48f6-a5bc-1f9c2e9a4bea · outbound

This paper cites The Zwicky Transient Facility: Data Processing, Products, and Archive.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness The Zwicky Transient Facility: Data Processing, Products, and Archive

Reference 26

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.298212Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation e2139625-f904-4c95-9ad5-95428edbc055 · outbound

This paper cites M., Koerding E., Knigge C., Uttley P., Fender R.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness M., Koerding E., Knigge C., Uttley P., Fender R

Reference 27

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.251101Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 6d7c7b0f-92e0-4417-be87-4a9e3b2de6d7 · outbound

This paper cites and Shibahashi , H.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness and Shibahashi , H

Reference 28

Resolution: metadata mismatch; arxiv_id, observed 2026-06-27T15:41:01.253595Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 3dfbd7af-9ebc-47b0-8286-1b92fa92f4b5 · outbound

This paper cites 2019, A&A, 632, A109, doi: 10.1051/0004-6361/201936911.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness 2019, A&A, 632, A109, doi: 10.1051/0004-6361/201936911

Reference 29

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.247828Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 3502975f-3d9e-40ed-888f-1cb53329161e · outbound

This paper cites doi:10.1093/mnras/sty1989 , Eprint =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness doi:10.1093/mnras/sty1989 , Eprint =

Reference 30

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.249341Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation b4d97a18-dfc5-492f-885e-be68979afb44 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 31

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.255289Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation efb18a18-356d-4354-8944-3662215f42f5 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 32

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.251272Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 89b4e958-0f34-45e7-87b3-a03afed487dc · outbound

This paper cites Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds

Reference 33

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.246154Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation c5bfea06-2af7-4634-ba95-f081daba98a7 · outbound

This paper cites , archivePrefix = "arXiv", eprint =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness , archivePrefix = "arXiv", eprint =

Reference 34

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.244339Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 5afbd7aa-92dd-4b6c-8477-fd34473a7837 · outbound

This paper cites T., Strateva, I., Brandt, W.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness T., Strateva, I., Brandt, W

Reference 35

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.234641Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation d5cf9226-7a84-44d7-925f-3b8a65ae6ac8 · outbound

This paper cites , eprint =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness , eprint =

Reference 36

Resolution: metadata mismatch; doi, observed 2026-06-27T15:41:01.245023Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 18556950-e917-4789-8dc7-0877403df7d4 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 37

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.246868Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 4255886e-ccc4-4a4e-9697-3f67df8a45af · outbound

This paper cites 2023, A&A, 677, A111, doi: 10.1051/0004-6361/202346024.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness 2023, A&A, 677, A111, doi: 10.1051/0004-6361/202346024

Reference 38

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.240531Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 19202cff-487e-4fb0-b1c7-42282f2d85f3 · outbound

This paper cites M., Gallo, L.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness M., Gallo, L

Reference 39

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.232810Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 0c1bef55-0cdd-45ec-af71-2659544420fd · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 40

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.252942Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation ef11efd1-6e1b-40e4-b696-51aeb0f93412 · outbound

This paper cites keywords =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness keywords =

Reference 41

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.273839Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 09cbccd7-0754-4c4d-891d-14bd7a9d3caa · outbound

This paper cites X-ray variability of SDSS J000532.84+200717.4: from a normal state to an X-weak state.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness X-ray variability of SDSS J000532.84+200717.4: from a normal state to an X-weak state

Reference 42

Resolution: metadata mismatch; local_arxiv, observed 2026-06-27T15:41:01.286325Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 61a61224-f512-410e-b40c-7784b24f728a · outbound

This paper cites N., Luo, B., et al.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness N., Luo, B., et al

Reference 43

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.297113Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Observation 3e62c3a7-1514-471c-ba0c-a4cae1a0111a · outbound

This paper cites Handbook of X-ray and Gamma-ray Astrophysics , year = 2022, editor =.

The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness Handbook of X-ray and Gamma-ray Astrophysics , year = 2022, editor =

Reference 44

Resolution: verified exact; doi, observed 2026-06-27T15:41:01.300370Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.

Pith citing papers

Observation 0d364906-92f5-4d8d-8d52-43f67dcf6a11 · inbound

In-flight calibration of the Wide-field X-ray Telescope on board the Einstein Probe cites this paper.

In-flight calibration of the Wide-field X-ray Telescope on board the Einstein Probe The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness

Reference 30

Resolution: verified exact; local_arxiv, observed 2026-07-01T18:15:58.135581Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.