Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
4G: Pure fourth-order gravity
As of 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 1 inbound Pith citation observation for arXiv:1807.06432.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-21T06:32:19.484+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-14T10:14:30.576618Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-08-14T10:14:30.669949Z
Reference resolution
0 of 0 outbound references displayed
- verified exact0
- verified fuzzy0
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
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 8685219e-b64e-4574-b181-fc274e5236d6 · inbound
Testing the Schwarzschild metric in a strong field region with the Event Horizon Telescope cites this paper.
Testing the Schwarzschild metric in a strong field region with the Event Horizon Telescope 4G: Pure fourth-order gravity
Reference 69
- Resolution
- metadata mismatch
- local_arxiv, observed 2026-08-14T10:14:30.675585Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.