Paper Citation Record · LEDGER

Cosmic Birefringence Test of the Hubble Tension

As of 22 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:1909.04621.

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

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 3 of 3 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-22T06:32:14.747728+00:00

measured 3 of 3 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-08T11:46:48.859688Z

measured 0 of 1 external citation measurements

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

Source: arxiv_reference, observed 2026-07-01T16:45:51.229597Z

0 of 0 outbound references displayed

External citation measurements

No source-named external measurement is stored.

No outbound reference observations are available for this paper version.

Observation f9725b8b-f3e8-4c71-a2d4-4f9b7ec94927 · inbound

Reference 112

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 869bcf8c-c551-4c0f-b87b-813771a03f42 · inbound

Reference 44

Resolution: unresolved; no resolver link, observed 2026-08-08T11:46:48.859688Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 217015be-359f-4a63-a4c7-a70a3264dc90 · inbound

Reference 45

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.