Paper Citation Record · LEDGER

Quantum principal component analysis

As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1307.0401.

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 2 of 2 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-08T06:32:00.761636+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-07T14:15:00.003329Z

measured 0 of 1 external citation measurements

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

Source: pith, observed 2026-08-06T21:43:13.110538Z

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 b7027a09-1168-43ba-8787-aa29839905cc · inbound

Reference 71

Resolution: unresolved; no resolver link, observed 2026-08-07T14:15:00.003329Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 9be78695-1cda-4370-9697-c1b6f2bf73aa · inbound

Reference 21

Resolution: verified exact; local_arxiv, observed 2026-08-06T21:43:13.177039Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.