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Paper Citation Record · LEDGER

A free boundary problem for spreading under shifting climate

As of 16 August 2026, this Paper Citation Record lists 20 of 20 outbound references and 0 inbound Pith citation observations for arXiv:1908.04041.

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

pith.paper-citation-record.v1
1908.04041 v1

Coverage vector

measured 20 of 20 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T14:02:32.680200Z

measured 20 of 20 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 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

20 of 20 outbound references displayed

  • verified exact0
  • verified fuzzy12
  • unresolved8
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 75b60290-fa69-47b6-82eb-15277ebbb9b5 · outbound

This paper cites Berestycki, O.

A free boundary problem for spreading under shifting climate Berestycki, O

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.301527Z

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.

source=pdf_text observed=2026-08-14T14:02:32.501422Z digest=sha256:cd6d07b94b91015b465009f7494f1687eadcc0cbdb3fe436594ab820dbcd3124

Observation 83e5ef39-f0e1-45a9-9249-b1031b3bb0ba · outbound

This paper cites Berestycki and Jian Fang, Forced waves of the Fisher-K PP equation in a shifting environment, J.

A free boundary problem for spreading under shifting climate Berestycki and Jian Fang, Forced waves of the Fisher-K PP equation in a shifting environment, J

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.286415Z

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.

source=pdf_text observed=2026-08-14T14:02:32.511448Z digest=sha256:cd2c441faeaa035582abd334515948321e034f1ff9576df2d0817ddf9998c87e

Observation 4f68174c-8bbe-4beb-87bb-cec04aca3f6e · outbound

This paper cites Bunting, Y.

A free boundary problem for spreading under shifting climate Bunting, Y

Reference 3

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.258452Z

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.

source=pdf_text observed=2026-08-14T14:02:32.517082Z digest=sha256:e7f794b19250ea75469c8dabeb6393b1b87f07669a7940f58595bee911b368b2

Observation 98dae09b-e810-4bfe-aafd-c342078b3eee · outbound

This paper cites Du and Z.

A free boundary problem for spreading under shifting climate Du and Z

Reference 4

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.232522Z

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.

source=pdf_text observed=2026-08-14T14:02:32.523803Z digest=sha256:a6da354ac5ad7b80a45883b25b05433e78792ba76774b1acd75ea209ea71df3e

Observation ef47f917-bba3-48a4-9149-7156184b7f20 · outbound

This paper cites Du and B.

A free boundary problem for spreading under shifting climate Du and B

Reference 5

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.214124Z

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.

source=pdf_text observed=2026-08-14T14:02:32.529217Z digest=sha256:f82d846430338cd38bffd21660e8283d3d769145352adeb1aabffa2693bb3ceb

Observation 9c412d68-1c71-432a-b625-29ff696b0d75 · outbound

This paper cites Du and L.

A free boundary problem for spreading under shifting climate Du and L

Reference 6

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.201184Z

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.

source=pdf_text observed=2026-08-14T14:02:32.534729Z digest=sha256:c2c691ee2720b8ef49d944454d8d5201935b702740a84ab2029607605b9bfaed

Observation bfe94e96-0c71-4f41-8c08-27c2afbd79c6 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 7

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:33.183885Z

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.

source=pdf_text observed=2026-08-14T14:02:32.554187Z digest=sha256:203da105e0a4c517afb94d2940d95a0eda5893ae2b58b2f150106bf9762e8800

Observation d405b908-1234-4d59-95e0-bb5245cb4c33 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 8

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:33.155275Z

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.

source=pdf_text observed=2026-08-14T14:02:32.561833Z digest=sha256:8cd26499320b78a4cd3bf5fb512d4abf6e6b98b8b2a6802ddb132d5d1fd3f08d

Observation 21f75c7a-a24b-49b7-9825-961b6de2e8d7 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 9

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:33.131518Z

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.

source=pdf_text observed=2026-08-14T14:02:32.571233Z digest=sha256:3986cf5d2f3e159c01359f47cfa778734b1d73ad741b31e63294467d8b4113a8

Observation 93224bf8-792d-4fbb-9d23-b23e9e0978e3 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 10

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:33.095499Z

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.

source=pdf_text observed=2026-08-14T14:02:32.576733Z digest=sha256:f9e2aad067e22af64df189a414b5bae7e73c0acf193d618ad03d185f4838bc1b

Observation 7f884264-02bc-4ff7-9a69-17368a65038b · outbound

This paper cites Fey and C.

A free boundary problem for spreading under shifting climate Fey and C

Reference 11

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.072347Z

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.

source=pdf_text observed=2026-08-14T14:02:32.582140Z digest=sha256:c65ae00c5c96446991f9fe402003fa879f7a9f05d6a5bf0106801a3142477d15

Observation 1766ba9a-61c0-4a4f-a7c4-5da973c43f54 · outbound

This paper cites Gan and P.

A free boundary problem for spreading under shifting climate Gan and P

Reference 12

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:33.032780Z

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.

source=pdf_text observed=2026-08-14T14:02:32.595952Z digest=sha256:9498c4fcd3d62c9dca275851b0fb17eae2929d66b38bf6d3f1a598bbb971bd1b

Observation d8cfd8ab-1571-49f0-a572-9aecb9341920 · outbound

This paper cites Hu and X.

A free boundary problem for spreading under shifting climate Hu and X

Reference 13

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:32.997570Z

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.

source=pdf_text observed=2026-08-14T14:02:32.601955Z digest=sha256:d984228ebf7068f7c842c67a68902cf11689c6e2fec33e9e32a0a927fb983011

Observation 86c88ac6-9898-49c6-a34f-f1513206b10e · outbound

This paper cites Lei and Y.

A free boundary problem for spreading under shifting climate Lei and Y

Reference 14

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:32.974481Z

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.

source=pdf_text observed=2026-08-14T14:02:32.609795Z digest=sha256:3fb0bbb8438647cb40edb42b5c01be66d6c9939976aad0d3bb130d52cbc33261

Observation b69ab0b0-2c9b-463e-8595-32d6987dc227 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 15

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:32.931025Z

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.

source=pdf_text observed=2026-08-14T14:02:32.615957Z digest=sha256:d019d3fe8169cfea4ea50a8e5c1ca0339972a0c2b3358c8d63e22d3763320592

Observation c2c74a99-ca4e-4e02-ae92-bfa2fe134bee · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 16

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:32.894589Z

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.

source=pdf_text observed=2026-08-14T14:02:32.623383Z digest=sha256:1c2fa51c73806c72a4628caa20d1815b5cd93ce4e31091cb3a52a3f6a7da6407

Observation 23deb1ea-0ca6-4c13-8bda-fed45fbddbda · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 17

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:32.866297Z

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.

source=pdf_text observed=2026-08-14T14:02:32.635448Z digest=sha256:818d145fe155e0ca5948df0767c6b273156afba4b9ce274ca07b74a041f67012

Observation ce0539b1-fa13-45d4-b15f-5432260fda01 · outbound

This paper cites an unresolved cited work.

A free boundary problem for spreading under shifting climate Unresolved cited work

Reference 18

Resolution
unresolved
raw_fallback, observed 2026-08-14T14:02:32.828676Z

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.

source=pdf_text observed=2026-08-14T14:02:32.652008Z digest=sha256:2e772166965bc426b41ec879cc20da5117095807e76be0017ccad1dfeb601f7d

Observation 819355b6-d9c0-4956-baea-b3f945183819 · outbound

This paper cites Wang and X.Q.

A free boundary problem for spreading under shifting climate Wang and X.Q

Reference 19

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:32.803842Z

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.

source=pdf_text observed=2026-08-14T14:02:32.665762Z digest=sha256:3c9d06f6ab81fead83c06e4a65a6b3eebdb95fea137df83f39ffd8216a48d756

Observation 6a543a2c-d079-425c-855a-f68f5713d665 · outbound

This paper cites Wang, Existence and uniqueness of solutions of free b oundary problems in heterogeneous environ- ments, Discrete Contin.

A free boundary problem for spreading under shifting climate Wang, Existence and uniqueness of solutions of free b oundary problems in heterogeneous environ- ments, Discrete Contin

Reference 20

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T14:02:32.770136Z

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.

source=pdf_text observed=2026-08-14T14:02:32.680200Z digest=sha256:ea433d3db5ed1b13df0d6ccfe77ac4bb1b8d96ab5957ee32ceb7ac9019a6bacb

Pith citing papers

No inbound Pith citation observations are available.