Paper Citation Record · LEDGER

Quasar Main Sequence: a line or a plane?

As of 16 August 2026, this Paper Citation Record lists 32 of 32 outbound references and 0 inbound Pith citation observations for arXiv:1908.04990.

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

pith.paper-citation-record.v1
1908.04990 v3

Coverage vector

measured 32 of 32 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T13:32:16.769838Z

measured 32 of 32 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

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

Source: cited_works

Reference resolution

32 of 32 outbound references displayed

verified exact0
verified fuzzy16
unresolved16
parse uncertain0
malformed identifier0
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 3322d5d1-0b4a-408d-b4e8-05b29b9e1bfb · outbound

This paper cites E., Hough, D.

Quasar Main Sequence: a line or a plane? E., Hough, D

Reference 1

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.229718Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 50a265fc-fed4-4172-85a1-0267eaf1373d · outbound

This paper cites A., Czerny, B., Lasota, J.

Quasar Main Sequence: a line or a plane? A., Czerny, B., Lasota, J

Reference 2

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.626673Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 396b7c33-2017-4713-a997-c5a6cbbd4654 · outbound

This paper cites 2017, MNRAS, 464, 385.

Quasar Main Sequence: a line or a plane? 2017, MNRAS, 464, 385

Reference 3

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.631807Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 64eec3a0-c83d-4ab9-b16e-0bd03a43625c · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 4

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.636706Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 97894e52-73ee-4019-9e6f-117fbc1ba846 · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 5

Resolution: unresolved; raw_fallback, observed 2026-08-14T13:32:17.185521Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation daf27f4e-04dc-43ed-a7c1-408c98ed5bd4 · outbound

This paper cites M., Netzer, H., Lira, P., Trakhtenbrot, B., & Mej ´ıa-Restrepo, J.

Quasar Main Sequence: a line or a plane? M., Netzer, H., Lira, P., Trakhtenbrot, B., & Mej ´ıa-Restrepo, J

Reference 6

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.169660Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation f49d09db-21c6-4bad-9518-543cc826ac64 · outbound

This paper cites M., Netzer, H., Lira, P., Trakhtenbrot, B., & Mej ´ıa-Restrepo, J.

Quasar Main Sequence: a line or a plane? M., Netzer, H., Lira, P., Trakhtenbrot, B., & Mej ´ıa-Restrepo, J

Reference 7

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.150209Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation dd90f4e7-8413-4d4f-a77e-8186bedad80d · outbound

This paper cites M., & Vestergaard, M.

Quasar Main Sequence: a line or a plane? M., & Vestergaard, M

Reference 8

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.134526Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 22267ee9-6d8b-4772-830d-be4fce190ec7 · outbound

This paper cites 2019, ApJ, 882, 138.

Quasar Main Sequence: a line or a plane? 2019, ApJ, 882, 138

Reference 9

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.119700Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 4660c91e-a6a7-426f-a4c7-e28d26da5511 · outbound

This paper cites 2017, Frontiers in Astronomy and Space Sciences, 4, 1.

Quasar Main Sequence: a line or a plane? 2017, Frontiers in Astronomy and Space Sciences, 4, 1

Reference 10

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.104347Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 676648fa-24c0-46a9-b96d-e20a90c95717 · outbound

This paper cites J., & Jones, A.

Quasar Main Sequence: a line or a plane? J., & Jones, A

Reference 11

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.089295Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 1660afe1-8afc-4b41-ba0d-9a8204fad1dd · outbound

This paper cites 2005, ApJ, 629, 61.

Quasar Main Sequence: a line or a plane? 2005, ApJ, 629, 61

Reference 12

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.675601Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 507f1ad4-c5e5-467e-a7fa-c6012c14b35b · outbound

This paper cites J., Schmidt, G., et al.

Quasar Main Sequence: a line or a plane? J., Schmidt, G., et al

Reference 13

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.063435Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 1dcb9f28-c834-40da-9763-92190559ccb5 · outbound

This paper cites 1998, AJ, 115, 2285.

Quasar Main Sequence: a line or a plane? 1998, AJ, 115, 2285

Reference 14

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.685061Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 25daa0ba-6e4e-4765-8074-05076196cbd0 · outbound

This paper cites 2018, Frontiers in Astronomy and Space Sciences, 5, 28.

Quasar Main Sequence: a line or a plane? 2018, Frontiers in Astronomy and Space Sciences, 5, 28

Reference 15

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.037311Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation c265072e-9241-44f6-85f2-085917b9ebfa · outbound

This paper cites & Sulentic, J.

Quasar Main Sequence: a line or a plane? & Sulentic, J

Reference 16

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.020766Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation fadf7012-2012-482f-b1c6-31366369f68f · outbound

This paper cites W., Zwitter, T., Dultzin-Hacyan, D., & Calvani, M.

Quasar Main Sequence: a line or a plane? W., Zwitter, T., Dultzin-Hacyan, D., & Calvani, M

Reference 17

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:17.004465Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 40c15031-dc59-4cf7-ba98-3d4ebb03c31a · outbound

This paper cites 2003, Monthly Notices of the Royal Astronomical Society, 342, 422 Mej´ıa-Restrepo, J.

Quasar Main Sequence: a line or a plane? 2003, Monthly Notices of the Royal Astronomical Society, 342, 422 Mej´ıa-Restrepo, J

Reference 18

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:16.988021Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 5632a6f5-6a10-43d8-84c9-9e2f45b6849a · outbound

This paper cites P., et al.

Quasar Main Sequence: a line or a plane? P., et al

Reference 19

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.708848Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation cd8e742d-5e17-4826-ac7f-0baec423a5b2 · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 20

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.713523Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 9063f992-fe08-4539-a176-596f671a80ea · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 21

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.718290Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 3252288c-34d5-4ec8-a9a1-cc3c7d821fb2 · outbound

This paper cites S., & Peeples, M.

Quasar Main Sequence: a line or a plane? S., & Peeples, M

Reference 22

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:16.940922Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 6221d9ad-e6ae-4d3c-8de5-c8aec13927f5 · outbound

This paper cites 2011, MNRAS, 411, 2223.

Quasar Main Sequence: a line or a plane? 2011, MNRAS, 411, 2223

Reference 23

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.727796Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 654d4974-9a53-4f30-a48e-a6ec6ca6ff06 · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 24

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.732444Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation df48ccbd-d1af-4318-8148-939c405ce25c · outbound

This paper cites I., Popovi´c, L.

Quasar Main Sequence: a line or a plane? I., Popovi´c, L

Reference 25

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:16.904662Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 766a9940-1db8-4c90-8bad-d043d1e1168f · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 26

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.741579Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 36004737-57d6-48ec-96e5-afa4b7546feb · outbound

This paper cites T., Strauss, M.

Quasar Main Sequence: a line or a plane? T., Strauss, M

Reference 27

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:16.879280Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation f3c69a9c-2981-4200-8b74-df53ace6949e · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 28

Resolution: unresolved; raw_fallback, observed 2026-08-14T13:32:16.861947Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 37e7bcb1-5c40-426c-9332-16459b0b0f6a · outbound

This paper cites W., Bachev, R., Marziani, P., Negrete, C.

Quasar Main Sequence: a line or a plane? W., Bachev, R., Marziani, P., Negrete, C

Reference 29

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.755648Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 127bb69a-aa57-470b-9c66-47d2e7e831c9 · outbound

This paper cites W., Zwitter, T., Marziani, P., & Dultzin-Hacyan, D.

Quasar Main Sequence: a line or a plane? W., Zwitter, T., Marziani, P., & Dultzin-Hacyan, D

Reference 30

Resolution: unresolved; no resolver link, observed 2026-08-14T13:32:16.760573Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation d13bd2d0-3d13-4e69-829e-9462d519e6a4 · outbound

This paper cites an unresolved cited work.

Quasar Main Sequence: a line or a plane? Unresolved cited work

Reference 31

Resolution: unresolved; raw_fallback, observed 2026-08-14T13:32:16.823023Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Observation 0b2cfcbe-f640-4f25-8f0f-cee18ad00fab · outbound

This paper cites J., et al.

Quasar Main Sequence: a line or a plane? J., et al

Reference 32

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T13:32:16.806991Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.

Pith citing papers

No inbound Pith citation observations are available.