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Paper Citation Record · LEDGER

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics

As of 19 August 2026, this Paper Citation Record lists 5 of 5 outbound references and 0 inbound Pith citation observations for arXiv:1909.00257.

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

pith.paper-citation-record.v1
1909.00257 v7

Coverage vector

measured 5 of 5 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T06:02:15.123852Z

measured 5 of 5 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-19T06:32:44.657259+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

5 of 5 outbound references displayed

  • verified exact1
  • verified fuzzy3
  • unresolved1
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation b03f250e-ee94-492b-95da-12c4cc95d9c1 · outbound

This paper cites An introduction to Topological Data Analysis: fundamental and practical aspects for data scientists.

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics An introduction to Topological Data Analysis: fundamental and practical aspects for data scientists

Reference 1

Resolution
unresolved
no resolver link, observed 2026-08-14T06:02:15.106265Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T06:02:15.106265Z digest=sha256:9d740c0337250542de245c0d0a8a437383d6d49fa44fb3014bb7b51ad67e5ba3

Observation b2d90a72-9d33-4977-9b7d-921d430c8e1a · outbound

This paper cites Topological persis- tence and simplification.

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics Topological persis- tence and simplification

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T06:02:15.194848Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.

source=pdf_text observed=2026-08-14T06:02:15.112913Z digest=sha256:efc86a1153498132f4a67d1fd404588b1edaf43b9e1b969a6f36d3adb9a8ea36

Observation 3747049b-cfed-40d5-b978-8b1851e948a7 · outbound

This paper cites Introduction.

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics Introduction

Reference 4

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T06:02:15.173664Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.

source=pdf_text observed=2026-08-14T06:02:15.120555Z digest=sha256:da2bd1c9338b32b1194ea5a6ca0da4ddf262728e2d3c2b8ef63afdd2d0bdd88e

Observation 97dd2c5c-3327-4bec-8ae2-306078450518 · outbound

This paper cites Towards a new approach to reveal dynamical organization of the brain using topological data analysis.

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics Towards a new approach to reveal dynamical organization of the brain using topological data analysis

Reference 551

Resolution
verified exact
doi, observed 2026-08-14T06:02:15.162768Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.

source=pdf_text observed=2026-08-14T06:02:15.123852Z digest=sha256:c8949e6c399d3c61ece16f751785707bc86862ce58c64e83456fcd121579940d

Observation c45930a1-efeb-4b7e-9c1c-aed5c48192fa · outbound

This paper cites Clustering and classification of time series using topological data analysis with applications to finance.

Mapping Firms' Locations in Technological Space: A Topological Analysis of Patent Statistics Clustering and classification of time series using topological data analysis with applications to finance

Reference 1236

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T06:02:15.184344Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.

source=pdf_text observed=2026-08-14T06:02:15.116893Z digest=sha256:335e5bf06c31352cc7f2a614bfa5ae570680587316a0a5d26f77ee396e6bf4a8

Pith citing papers

No inbound Pith citation observations are available.