Paper Citation Record · LEDGER

The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant

As of 16 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 4 inbound Pith citation observations for arXiv:astro-ph/9909260.

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

pith.paper-citation-record.v1
astro-ph/9909260 v1

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 4 of 4 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 4 of 4 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-16T00:16:04.475011Z

measured 0 of 1 external citation measurements

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

Source: pith, observed 2026-07-03T09:57:55.559190Z

Reference resolution

0 of 0 outbound references displayed

verified exact0
verified fuzzy0
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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 2e8defee-5b67-41c9-9375-e9ddcd0a806c · inbound

Caught in the act: interaction-driven evolution in the nearby compact galaxy group Roberts Quartet (SCG0018-4854) cites this paper.

Caught in the act: interaction-driven evolution in the nearby compact galaxy group Roberts Quartet (SCG0018-4854) The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant

Reference 97

Resolution: verified exact; local_arxiv, observed 2026-07-01T04:05:19.733441Z

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 0509881b-af15-40b0-bb8e-8966f29335bb · inbound

Resolved HI and Environmental Dynamics cites this paper.

Resolved HI and Environmental Dynamics The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant

Reference 69

Resolution: verified exact; local_arxiv, observed 2026-07-03T09:57:55.560460Z

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 37dca6b6-826f-4586-b098-fe257ababab7 · inbound

Optical observations on the young Type Ia SN 2021fxy with detached high velocity features cites this paper.

Optical observations on the young Type Ia SN 2021fxy with detached high velocity features The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant

Reference 101

Resolution: unresolved; no resolver link, observed 2026-08-01T17:49:32.123962Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 17a49927-18a2-4783-9502-c98d6518681e · inbound

Evidence for the First Globular Cluster Stellar Stream beyond the Milky Way cites this paper.

Evidence for the First Globular Cluster Stellar Stream beyond the Milky Way The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant

Reference 18

Resolution: unresolved; no resolver link, observed 2026-08-16T00:16:04.475011Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.