Pith. sign in

Paper Citation Record · LEDGER

Exact vacuum solution with Hopf structure in general relativity

As of 10 August 2026, this Paper Citation Record lists 10 of 10 outbound references and 1 inbound Pith citation observation for arXiv:2506.20878.

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

pith.paper-citation-record.v1
2506.20878 v1

Coverage vector

measured 10 of 10 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-06T22:53:31.505501Z

measured 11 of 11 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-10T06:31:04.303077+00:00

measured 1 of 1 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-06T15:28:43.031605Z

measured 0 of 1 external citation measurements

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

Source: pith, observed 2026-08-06T15:28:43.952080Z

Reference resolution

10 of 10 outbound references displayed

  • verified exact2
  • verified fuzzy3
  • unresolved5
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 32d58c36-2e18-4ca5-ada8-4f9a0b4332e8 · outbound

This paper cites Hopf, Über die abbildungen der dreidimensionalen sphäre auf die kugelfläche, Math.

Exact vacuum solution with Hopf structure in general relativity Hopf, Über die abbildungen der dreidimensionalen sphäre auf die kugelfläche, Math

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-06T22:53:33.279664Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:30.505931Z digest=sha256:429a3eccdabf25bcc89f251a7a3e1bd541863afdf93872834816f6684e55a9ea

Observation a1397deb-a30e-4ad1-a7df-eddb251a59d6 · outbound

This paper cites Urbantke, The Hopf fibration—seven times in physics, J.

Exact vacuum solution with Hopf structure in general relativity Urbantke, The Hopf fibration—seven times in physics, J

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-06T22:53:33.035271Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:30.573980Z digest=sha256:58f1b06a2ddb5210e727323f9e654887498cae56dd67e33db7fb71521a6d3070

Observation dca2ce5b-65e3-4feb-ab45-3a7799a4d95e · outbound

This paper cites an unresolved cited work.

Exact vacuum solution with Hopf structure in general relativity Unresolved cited work

Reference 3

Resolution
unresolved
raw_fallback, observed 2026-08-06T22:53:32.682753Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:30.658637Z digest=sha256:32a7559155bc7edb22726b6ab47f657adb556b33665e96fe84f454b6b26b76f8

Observation 63c49ea2-a8b6-4363-b0e7-426b5ebd02de · outbound

This paper cites Tying knots in light fields.

Exact vacuum solution with Hopf structure in general relativity Tying knots in light fields

Reference 4

Resolution
verified exact
local_arxiv, observed 2026-08-06T22:53:32.087829Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:30.796814Z digest=sha256:e71401607c38d62beda716c2b864c95c36d634de291ebd99a19354bac167a4a0

Observation eb2c83a2-cee1-4da6-b3b9-7c390420e94d · outbound

This paper cites Simple description of generalized electromagnetic and gravitational hopfions.

Exact vacuum solution with Hopf structure in general relativity Simple description of generalized electromagnetic and gravitational hopfions

Reference 5

Resolution
verified exact
local_arxiv, observed 2026-08-06T22:53:31.831053Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:30.927905Z digest=sha256:cb7b987b29d9f81a6b4a9bfef7c1c6384b2e8b13cd91e39228d94a1a71b6fecd

Observation 57cd077f-4ae6-40e6-ac58-7fa52ff16903 · outbound

This paper cites Anti-Self-Dual Spacetimes, Gravitational Instantons and Knotted Zeros of the Weyl Tensor.

Exact vacuum solution with Hopf structure in general relativity Anti-Self-Dual Spacetimes, Gravitational Instantons and Knotted Zeros of the Weyl Tensor

Reference 6

Resolution
unresolved
no resolver link, observed 2026-08-06T22:53:30.987093Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T22:53:30.987093Z digest=sha256:e85a0563bc2a3893edfae95bead1a07180b6bce4df51998642a7b4c06ebaa365

Observation 968b6d8f-1086-453a-8d6a-b502a3515cb1 · outbound

This paper cites an unresolved cited work.

Exact vacuum solution with Hopf structure in general relativity Unresolved cited work

Reference 7

Resolution
unresolved
no resolver link, observed 2026-08-06T22:53:31.087951Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T22:53:31.087951Z digest=sha256:fd8d1d6a68ed23694238cf709856c893816324f09e3780a45fd1d18dfc1ec3b5

Observation e234b6f2-fde5-4ac4-8e14-2e8adac41b76 · outbound

This paper cites an unresolved cited work.

Exact vacuum solution with Hopf structure in general relativity Unresolved cited work

Reference 8

Resolution
unresolved
no resolver link, observed 2026-08-06T22:53:31.217565Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T22:53:31.217565Z digest=sha256:ef039e373c1315ab1a37695b83d7dff61e4ab378d02555f260f45b98763afd7c

Observation 138776fb-ae25-42cb-98f5-3fb30cbc404e · outbound

This paper cites Second Order Scalar Invariants of the Riemann Tensor: Applications to Black Hole Spacetimes.

Exact vacuum solution with Hopf structure in general relativity Second Order Scalar Invariants of the Riemann Tensor: Applications to Black Hole Spacetimes

Reference 9

Resolution
unresolved
no resolver link, observed 2026-08-06T22:53:31.384401Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T22:53:31.384401Z digest=sha256:52927b976ff0109502ea30dcc9a85d0c92da8a2c519a18d84533921c9a91c4ce

Observation 3b7d980c-2441-4ea0-839a-7ea84d3b965b · outbound

This paper cites Stephani, D.

Exact vacuum solution with Hopf structure in general relativity Stephani, D

Reference 10

Resolution
verified fuzzy
raw_fallback, observed 2026-08-06T22:53:32.355724Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T22:53:31.505501Z digest=sha256:f7feb0015992ea1ac45030e4385eabda0e195576ff25386c4b7613260bb40957

Pith citing papers

Observation bfddb3cc-e589-4c80-94d3-1c5064a69953 · inbound

Ultrarelativistic limit of the Kerr theorem cites this paper.

Ultrarelativistic limit of the Kerr theorem Exact vacuum solution with Hopf structure in general relativity

Reference 12

Resolution
verified exact
local_arxiv, observed 2026-08-06T15:28:44.087400Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-10T06:31:04.303077+00:00.

source=pdf_text observed=2026-08-06T15:28:43.031605Z digest=sha256:2e85d42f5105f8d4589a36f2c7b32570e617d4474c9620436b025d957c76905b