{"as_of":"2026-08-16T22:17:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:d417137c1260a24b14bf2eb6429a607b1559cbb0819a6183b8e1a68cafe08df4","coverage":[{"denominator":12,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":12,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T13:57:33.739448Z","state":"measured"},{"denominator":12,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":12,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-16T06:30:59.297886+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/1908.04104/citation-record","integrity":"/paper/1908.04104/integrity","json":"/paper/1908.04104/citation-record.json","paper":"/paper/1908.04104"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.889393Z","title":"In: Proceedings of the Symposium on Graph Drawing (GD'96), LNCS, vol","venue":null,"work_id":"f4dc9c46-c8f5-499d-9dc1-1b85c991b81d","year":1997},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":1,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.694863Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:4a80b80bfc0a4804d0e51586062baa22bcceb9274a6cf04f273b32776a5558b4","observation_id":"f0a6257b-5bcb-4530-a5ba-8c68e4e6290a","resolution":{"observed_at":"2026-08-14T13:57:33.893762Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.874729Z","title":"Software Engineering 19(3), 214--230 (1993)","venue":null,"work_id":"71fad66e-254c-469c-85fc-479a499ed3ed","year":1993},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":2,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.700151Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:de6882f0bc5f79cddf63e64dbd09bd625252c94f91e7fe1035a2fcfa9a9abfc3","observation_id":"07539065-dd55-44ed-9ceb-8a42fe1f790e","resolution":{"observed_at":"2026-08-14T13:57:33.881344Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.704293Z","title":"In: Goodrich, M.T., Kobourov, S.G","venue":null,"work_id":null,"year":2002},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":3,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.704293Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:aba3faf8b61247aa8311141970e3e1c0a89def0511c003705002e73fe4823cd8","observation_id":"4be5fc6c-82ad-472d-84d2-28eea0e53cda","resolution":{"observed_at":"2026-08-14T13:57:33.704293Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.860798Z","title":"u egg, U., von Hanxleden, R.: Compact layered drawings of general directed graphs. In: Hu, Y., N \\","venue":null,"work_id":"4679317d-e77e-465c-810e-718a5f289ba3","year":2016},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":4,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.708390Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:1f9643e0f3979e8c3f987247d2754ef001bff77b08d82b9898fc0b662cfa5852","observation_id":"8cec4909-febd-42fe-a89b-a4992150d957","resolution":{"observed_at":"2026-08-14T13:57:33.865736Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1007/s10288-017-0364-0","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.792534Z","title":"4OR 16(3), 295--309 (Sep 2018)","venue":null,"work_id":"41716ab2-0d68-4eab-a98f-7ff683abef25","year":2018},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":5,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.712761Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:a599fd1c88239f99b88724e61ae70ddda2b3e5f9556bb565ad52db775a41f4a7","observation_id":"ff06f282-d097-4366-b3df-c2f072e101ff","resolution":{"observed_at":"2026-08-14T13:57:33.797602Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.847435Z","title":"u egg, U., Ehlers, T., Sp \\","venue":null,"work_id":"424dc186-bcff-427f-9341-4e4047c70c56","year":2015},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":6,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.716890Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:9c956c1955e3f6380ce7e36c8376f46a2fffe18f694d2d41753c02c56efdbb6f","observation_id":"72db8302-6a21-40b4-8fa5-b3a90b08d600","resolution":{"observed_at":"2026-08-14T13:57:33.851553Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.835339Z","title":"u egg, U., Ehlers, T., Sp \\","venue":null,"work_id":"ae575c73-824b-4ca2-82ef-d4dd7715a2e5","year":2016},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":7,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.720875Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:27f2ea5db335e10a9a939e4a9f1ac9d7d884a2612faae3513519d4cebbc4f566","observation_id":"0e9d716a-3177-4f9a-9a91-7071118b1184","resolution":{"observed_at":"2026-08-14T13:57:33.839095Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.724815Z","title":"uegg , U., Ehlers , T., Sp\\","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":8,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.724815Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:60faf7d367360539f9cb43fac579406013da7d21271315b57ee83c3cbafbd417","observation_id":"727cda9c-f3ed-4941-9e97-3435d06a849e","resolution":{"observed_at":"2026-08-14T13:57:33.724815Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.823917Z","title":"IEEE Transactions on Systems, Man and Cybernetics 11(2), 109--125 (Feb 1981)","venue":null,"work_id":"6839a38a-ea59-41e5-aa5c-6a3661e25773","year":1981},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":9,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.729146Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:fd7b7b2d0933734ff5118acb81ce8e44bb4676fbd54b1204c9ad1ba4252dad22","observation_id":"1f22db09-8f7b-4180-9cfa-2de29fdfa47f","resolution":{"observed_at":"2026-08-14T13:57:33.828152Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.732828Z","title":"Journal of Computer and System Sciences 10(3), 384--393 (1975)","venue":null,"work_id":null,"year":1975},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":10,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.732828Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:77ca347e19f24ee287bc19ca969b5995d8e3a53af891a2a13915a7e2fbdf5cc0","observation_id":"ce8c4d08-3961-4fcd-a8ed-af5561f798f8","resolution":{"observed_at":"2026-08-14T13:57:33.732828Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.736028Z","title":", \" * write output.state after.block = add.period write","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":11,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.736028Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:61e0a523c35f7967e364f32ad832677142237078b09471c8c897d0ae2c568f1d","observation_id":"ba9c2e75-c7c6-496a-b538-bb82880ed92f","resolution":{"observed_at":"2026-08-14T13:57:33.736028Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T13:57:33.739448Z","title":"write newline","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem","version":1},"reference_index":12,"source":"arxiv_source","source_observed_at":"2026-08-14T13:57:33.739448Z"},"links":{"citing_paper":"/paper/1908.04104"},"observation_digest":"sha256:671a68a9cec96d13b80b354def433da0c51fba84a2652499df78ba6cd89d305c","observation_id":"ab5034ea-3380-4ddb-941f-0fcd3feb2a43","resolution":{"observed_at":"2026-08-14T13:57:33.739448Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"paper":{"arxiv_id":"1908.04104","last_updated":"2019-08-12T11:59:42Z","latest_version":1,"primary_category":"cs.DS","snapshot_observed_at":"2026-08-16T03:37:19.819213Z","submitted_at":"2019-08-12T11:59:42Z","title":"A Natural Quadratic Approach to the Generalized Graph Layering Problem"},"reference_resolution":{"displayed":12,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":5,"verified_exact":1,"verified_fuzzy":6},"total_outbound_references":12},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-16T06:30:59.297886+00:00","source":"crossref"},{"observed_at":"2026-08-16T06:30:54.164669+00:00","source":"retraction_watch"}],"thesis":"As of 16 August 2026, this Paper Citation Record lists 12 of 12 outbound references and 0 inbound Pith citation observations for arXiv:1908.04104."}