{"as_of":"2026-08-22T07:51:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:44f28a603585ec644d4a967eb73bac29b674c5974386a7297276925db1157c84","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":"2026-08-15T21:16:32.255383Z","state":"measured"},{"denominator":13,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":13,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-22T06:32:14.747728+00:00","state":"measured"},{"denominator":1,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":1,"source":"paper_references, paper_reference_links","source_observed_at":"2026-05-08T10:08:23.857683Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"arxiv_reference","source_observed_at":"2026-05-11T20:11:09.702346Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"cited_work":{"arxiv_id":"2505.11552","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2505.11552","snapshot_observed_at":"2026-07-22T03:21:56.692570Z","title":"Gsprec: Temporal-aware graph spectral filtering for recommendation","venue":null,"work_id":"c64c54cc-0cdd-4512-b1db-6fd2eaa76000","year":2025},"citing_paper":{"arxiv_id":"2604.22549","last_updated":"2026-04-24T13:39:51Z","snapshot_observed_at":"2026-08-16T03:48:03.001638Z","submitted_at":"2026-04-24T13:39:51Z","title":"ASPIRE: Make Spectral Graph Collaborative Filtering Great Again via Adaptive Filter Learning","version":1},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-05-08T10:08:23.857683Z"},"links":{"cited_paper":"/paper/2505.11552","citing_paper":"/paper/2604.22549"},"observation_digest":"sha256:52e16e284c43f4e793dff78a4bfa93296792442986509cf51aa1a4d2a2f182f7","observation_id":"b8a7e447-9159-48a7-88f4-fee4838f0873","resolution":{"observed_at":"2026-07-22T03:21:56.692570Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2505.11552/citation-record","integrity":"/paper/2505.11552/integrity","json":"/paper/2505.11552/citation-record.json","paper":"/paper/2505.11552"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-15T21:16:32.447977Z","title":"The netflix prize.Proceedings of KDD Cup and Workshop 2007, pp","venue":null,"work_id":"eb304966-c413-475d-99e5-b00f16cdd8ab","year":2007},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.200203Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:fc97fc929cf657f3b1b815d5e0dcc1fcc1185e15f725d28f358bc2fac61b821c","observation_id":"0a432bb6-41d1-4c5f-85c5-d7871bb8b339","resolution":{"observed_at":"2026-08-15T21:16:32.452630Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.351352Z","title":"The degree matrix DS =diag(S (d)1n) will have non-negative diagonal entries","venue":null,"work_id":"b35ca38d-62b1-410c-92de-8ae490f13956","year":1997},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.245190Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:b1b933150f4f1c734b246c72670336c380166b82b06054fab39ca08d8dd10b11","observation_id":"08631088-2416-4642-9c18-0ff61afd5ca9","resolution":{"observed_at":"2026-08-15T21:16:32.357112Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.336276Z","title":null,"venue":null,"work_id":"6d53c46c-cd8f-49d5-b6c8-5982d157e80c","year":2004},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.250149Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:656556f58999f119a20d7745f6a045c19903f8959dc7672dc92e722e7227426e","observation_id":"732fc22b-c19e-417d-b0e8-8a7fd7f8e547","resolution":{"observed_at":"2026-08-15T21:16:32.340856Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.366647Z","title":"Frequency- aware graph signal processing for collaborative filtering","venue":null,"work_id":"c0e74813-c8ed-4095-b62f-068295df462c","year":2025},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.240742Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:1c5d43b1d406c55bf5898695cf59369f63ba9cd205c125b694baddcb22fcfdfc","observation_id":"32ec3e37-2212-4fad-a7a4-84af99292c2b","resolution":{"observed_at":"2026-08-15T21:16:32.370937Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.322695Z","title":null,"venue":null,"work_id":"2b6bf4e5-b70b-443f-a322-7810a44e6f55","year":2011},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.255383Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:25ed158ccea61bee946d40f0c309c2aea209cfcbc67a191eeb0be980f53eb808","observation_id":"98a86384-c0be-4e61-a9d9-cb9d4cf95722","resolution":{"observed_at":"2026-08-15T21:16:32.326890Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.225905Z","title":"Justifying recommendations using distantly-labeled reviews and fine-grained aspects","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2006,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.225905Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:4f074d95a6b0dd449d80327f53f7898c9b12610da71fd968d130a6bd0817fb6f","observation_id":"2804530c-4710-466c-9a0e-e04464cd2635","resolution":{"observed_at":"2026-08-15T21:16:32.225905Z","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":"2026-08-15T21:16:32.434241Z","title":"Retagnn: Relational temporal attentive graph neural networks for holistic sequential recommendation","venue":null,"work_id":"1e159c9f-41e6-49d5-8262-976399feedbf","year":2021},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2015,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.212417Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:1ee8be7f978b2bdd39f9cdaa14c4e225c4a8686b829a1cfa3ce6ba4825041421","observation_id":"dc06d4fc-68fd-49e2-b46a-fa89d94ce0e3","resolution":{"observed_at":"2026-08-15T21:16:32.438830Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.380661Z","title":"Hierarchical graph signal processing for collaborative filtering","venue":null,"work_id":"37c75d43-e577-4732-b8e5-f5a78da5e119","year":2024},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2019,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.235574Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:76825656c9fde11dfa21121e5c823321067f8e979ccf88df3cd4aa9352de485d","observation_id":"489929f7-0bc5-441e-a768-90ed6f3534b0","resolution":{"observed_at":"2026-08-15T21:16:32.385266Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1511.06939","last_updated":"2016-03-29T14:52:58Z","snapshot_observed_at":"2026-08-15T14:18:11.908702Z","submitted_at":"2015-11-21T23:42:59Z","title":"Session-based Recommendations with Recurrent Neural Networks","version":4},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1511.06939","snapshot_observed_at":"2026-08-15T21:16:32.207334Z","title":"Session-based recommendations with recurrent neural networks.arXiv preprint arXiv:1511.06939,","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2020,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.207334Z"},"links":{"cited_paper":"/paper/1511.06939","citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:d41e9e5985020de84bb4b5839459c57e28ba579f61d6ae28cf77599f9c5d9bee","observation_id":"9e3e2519-4791-4fe8-b34a-c3f2696bfc32","resolution":{"observed_at":"2026-08-15T21:16:32.207334Z","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":"2026-08-15T21:16:32.405018Z","title":"Personalized graph signal processing for collaborative filtering","venue":null,"work_id":"20495070-48d4-4ad2-b8fb-f7648a5f5ab7","year":2023},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2021,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.221453Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:6b40a279f48d8f5ce32f15cffabacc5dce779a137841c7ca48ad3888706ca0ac","observation_id":"c809029e-a5c0-43b0-a7b8-b185e9219518","resolution":{"observed_at":"2026-08-15T21:16:32.409517Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-15T21:16:32.419637Z","title":"Interest-aware message-passing gcn for recommendation","venue":null,"work_id":"1aabee2f-269e-4962-a3c6-ad3bd46910dc","year":2021},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2024,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.216635Z"},"links":{"citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:e39869f373a6ac8e37207c33e8590a67c449cc26cd5a7059546eb71797b5ed93","observation_id":"4420ec67-54c2-4103-b661-7c4ecf75074b","resolution":{"observed_at":"2026-08-15T21:16:32.425062Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"cs/0612077","last_updated":"2019-11-14T15:24:51Z","snapshot_observed_at":"2026-08-15T10:53:26.447217Z","submitted_at":"2006-12-15T20:01:11Z","title":"Algebraic Signal Processing Theory","version":2},"cited_work":{"arxiv_id":"cs/0612077","doi":null,"metadata_source":"pith","pith_arxiv_id":"cs/0612077","snapshot_observed_at":"2026-08-15T21:16:32.289908Z","title":"Algebraic Signal Processing Theory","venue":"cs.IT","work_id":"cf6a1598-1aaf-4458-9dc1-07bb81d246a5","year":2006},"citing_paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering","version":3},"reference_index":2025,"source":"pdf_text","source_observed_at":"2026-08-15T21:16:32.230722Z"},"links":{"cited_paper":"/paper/cs/0612077","citing_paper":"/paper/2505.11552"},"observation_digest":"sha256:aa89eca27cb3f4a397158a1685f70edffc94e7a9d5c7565e372dd1c9359f7971","observation_id":"a3a2998b-3308-4123-9438-af2e8001c93d","resolution":{"observed_at":"2026-08-15T21:16:32.297525Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2505.11552","last_updated":"2026-07-21T08:15:02Z","latest_version":3,"primary_category":"cs.IR","snapshot_observed_at":"2026-08-16T10:40:00.826391Z","submitted_at":"2025-05-15T15:49:56Z","title":"GSPRec: On Improving Item Representations in Graph Signal Processing for Collaborative Filtering"},"reference_resolution":{"displayed":12,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":4,"verified_exact":1,"verified_fuzzy":7},"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":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 12 of 12 outbound references and 1 inbound Pith citation observation for arXiv:2505.11552."}