{"as_of":"2026-08-20T05:49:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:26d86b421c8c6789946a8b35674460fa25ed420a3ffb20bc9ee62664e0fe2025","coverage":[{"denominator":33,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":33,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T11:15:52.634152Z","state":"measured"},{"denominator":33,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":33,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-19T06:32:44.657259+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/1908.09559/citation-record","integrity":"/paper/1908.09559/integrity","json":"/paper/1908.09559/citation-record.json","paper":"/paper/1908.09559"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T11:15:53.287407Z","title":"Bellissard.: K-theory of C∗-algebras in solid state physics","venue":null,"work_id":"e7a5c34b-b20f-4322-acbe-5e4e1e6adcea","year":1986},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.466678Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:d854cfd513566bcb96b25993296dc521f048b25f7478f4ef395a6720c6cd6144","observation_id":"ae14e5f4-b433-4359-a340-55b5f2fe7423","resolution":{"observed_at":"2026-08-14T11:15:53.292754Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.269919Z","title":"Bellissard, A","venue":null,"work_id":"2cf6e4f8-650f-48fa-8620-f1dd3c1ca98a","year":1994},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.472584Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:5ffa7a2fa2799e43a713eb2fbd1ea334175b0a1b59b112e98d2343a92746bc69","observation_id":"f4f73aa9-3143-4ba8-bbd6-6cc733d15ab3","resolution":{"observed_at":"2026-08-14T11:15:53.275629Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.251765Z","title":"Coburn, R.G","venue":null,"work_id":"348b8cc1-2896-4d65-a6ad-0645d7dde514","year":1971},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.477491Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:f433c7afa6bc1949614f5767af8042a70d08d6582fe03d46aa3634939744c6e9","observation_id":"360ea4db-39fa-4c11-b337-1b8465e2cf5f","resolution":{"observed_at":"2026-08-14T11:15:53.258601Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.236557Z","title":"Connes.: Non-commutative differential geometry","venue":null,"work_id":"5383cf38-d159-4d97-a1b4-064880d2cde2","year":1985},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.482326Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:e3e4a4b3ef4ad2c9b4450433d3193bb393b50cc9a88300ffe1134e43e1c7c11d","observation_id":"f77379e3-450b-4e95-acfa-72a76482fdcb","resolution":{"observed_at":"2026-08-14T11:15:53.241344Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.208753Z","title":"Cuntz.: Semigroup C∗-algebras and toric varieties","venue":null,"work_id":"a7755235-db5f-48f9-b7bf-01e605e0a1ff","year":2017},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.488847Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:7190c9f0589f37175dd85dca01bec2467b87e05098cc16fbc0d52d5d85003613","observation_id":"d3a6081e-ad32-439a-9421-f853c45c9be7","resolution":{"observed_at":"2026-08-14T11:15:53.216290Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.190310Z","title":"Ding et al.: Experimental Demonstration of Acoustic Chern Ins ulators","venue":null,"work_id":"85c492c1-a562-49d1-a014-64ab4ea1abd0","year":2019},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.494145Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:e4b0ae7bdec7716b61789bf6e133976c8de983e16c9507d734ec203dfd1d92fb","observation_id":"fe3a2df1-adf5-490b-b88e-07a5d4298c64","resolution":{"observed_at":"2026-08-14T11:15:53.195578Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.172833Z","title":"Douglas, R","venue":null,"work_id":"45ea5c80-e087-4588-b152-26a989741f35","year":1971},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.500452Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:1ba4ff93e17ab2540b236170cd376ad581d9c48651e9ad6a45effbdf8107bcfa","observation_id":"8a9db185-b1df-4c00-9323-da7fb508ad6b","resolution":{"observed_at":"2026-08-14T11:15:53.177682Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.154145Z","title":"Fr¨ olich, G.M","venue":null,"work_id":"11c3e00e-7ee6-4c33-97a9-e2a1ae7a3804","year":2000},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.506645Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:26c53a58c39df4342247da36ccc1a1017cfffc80758b5b9df1290217e23b80ee","observation_id":"ccae19c2-ed4b-4aec-b48d-0f9c59e6c63c","resolution":{"observed_at":"2026-08-14T11:15:53.161413Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.135855Z","title":"parity anomaly","venue":null,"work_id":"86787417-99a5-482c-a514-29411fe1e1fa","year":1988},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.511632Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:d79b21959ff63b31499aa1e676e3e1a6ee992422a1b4b1bdb0d83e3559af593c","observation_id":"f664c8d7-d0b3-4029-9be3-b40953f17bb4","resolution":{"observed_at":"2026-08-14T11:15:53.142891Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.106982Z","title":"Hayashi.: Topological invariants and corner states for Hamilt onians on a three-dimensional lattice","venue":null,"work_id":"ed067884-8668-4868-8125-e35453197cae","year":2018},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.516301Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:6a0d5839bd78470db422416d7040ac6b1df89ab98480e5f159bd40ccc7d60f26","observation_id":"fb7a5ebb-f1ce-467d-b872-7393c83c042a","resolution":{"observed_at":"2026-08-14T11:15:53.117307Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.084367Z","title":"Hayashi.: Toeplitz operators on concave corners and topolo gically pro- tected corner states","venue":null,"work_id":"024024cc-72a8-4ce8-9f0e-c15161530467","year":2019},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.520811Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:9f43409d8f5ca5cf54c03636509b3c15af88e7c2efcc9260d92b298dfa2a3031","observation_id":"2fd90d71-d320-4164-9e81-5c2b4801b510","resolution":{"observed_at":"2026-08-14T11:15:53.091878Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.066496Z","title":null,"venue":null,"work_id":"f7c1662d-9e5f-44e0-ac20-539fd271f9d5","year":1988},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.525949Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:9ff00b1f2ad5852a2c4278a0337db95263e740bb1145d5bf31dd2c5c0bf24dc2","observation_id":"234471e5-ab7c-41c7-87c8-63768ec7904e","resolution":{"observed_at":"2026-08-14T11:15:53.072675Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.048314Z","title":"Jiang.: On Fredholm operators in quarter-plane Toeplitz algeb ras","venue":null,"work_id":"72a73e58-cac2-4063-a2d9-ae8d5d1c4f80","year":1995},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.531235Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:35b72687ac46e6278de4bd6ebf0acb604ab90e41c8a9b366c3cad4c478fa0016","observation_id":"7e1f993e-9d6d-4e97-bdf3-9ab15e1de073","resolution":{"observed_at":"2026-08-14T11:15:53.053660Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.032135Z","title":"Jotzu et al:","venue":null,"work_id":"2e644a51-b582-4e59-b75b-9a645b9f1e2a","year":2014},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.536079Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:6b8e13415de4ee40f2d1f0540767177b5eca1f01985714e8a3cb328d8b1b05b9","observation_id":"6914f574-d0e6-402b-aad3-1a3db2a7369e","resolution":{"observed_at":"2026-08-14T11:15:53.037180Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:53.010948Z","title":"Kellendonk, T","venue":null,"work_id":"e24a17fa-055c-4e8f-9fb6-6ca0eafb9697","year":2002},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.540637Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:6b71f3ca31d1c09ad452b2eb0a4d71137bcb575308947e3a09c175d7e0039577","observation_id":"d28ce5af-5f33-4301-99f4-1d41dc6db63b","resolution":{"observed_at":"2026-08-14T11:15:53.017739Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.993284Z","title":"Klembt et al.: Exciton-polariton topological insulator","venue":null,"work_id":"66d67bb1-f6be-444b-9251-7cf4f611a565","year":2018},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.546278Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:dd2b47cdba9c9d8fcc24becca4d10620856e18f22bb7b4a2859d16419a8d1f69","observation_id":"8b2b6ed1-a751-4538-84ac-dd6f5297fe3f","resolution":{"observed_at":"2026-08-14T11:15:52.998728Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.974361Z","title":"Loring.: The torus and noncommutative topology","venue":null,"work_id":"8e94fa80-8f11-4565-aeff-e2f616bb722e","year":1986},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.551327Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:0ae5c49d33102c552b9522f3ae444f2d665dd0a27e77f3b07a97ff26ce1419ec","observation_id":"4d1dda81-ca78-4d87-979c-8d0d9d1cb7ef","resolution":{"observed_at":"2026-08-14T11:15:52.979323Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.956685Z","title":null,"venue":null,"work_id":"e5d8fac9-be26-4263-9508-bde852cb17c7","year":2014},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.555944Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:753620884da26fe80044b6413637cddf5922102b46ad7854f89c45e9b171a078","observation_id":"a16b9860-5fe1-4c2d-93a9-5fffc3042789","resolution":{"observed_at":"2026-08-14T11:15:52.962081Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1904.13051","last_updated":"2020-06-21T14:20:18Z","snapshot_observed_at":"2026-08-14T16:39:41.075016Z","submitted_at":"2019-04-30T05:07:41Z","title":"Good Wannier bases in Hilbert modules associated to topological insulators","version":2},"cited_work":{"arxiv_id":"1904.13051","doi":null,"metadata_source":"pith","pith_arxiv_id":"1904.13051","snapshot_observed_at":"2026-08-14T11:15:52.718892Z","title":"Good Wannier bases in Hilbert modules associated to topological insulators","venue":"math-ph","work_id":"2f1e7636-0915-4865-b125-7226b5437f3b","year":2019},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.561881Z"},"links":{"cited_paper":"/paper/1904.13051","citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:17f54b581062351568e0c578d902019968b06059d770bbb7f2b8f53a6de67c84","observation_id":"6b04fecc-2dd1-4f31-aac0-891a935b14b1","resolution":{"observed_at":"2026-08-14T11:15:52.727001Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2001.08339","last_updated":"2021-10-05T15:16:41Z","snapshot_observed_at":"2026-07-31T18:23:55.417700Z","submitted_at":"2020-01-23T01:57:33Z","title":"Cobordism invariance of topological edge-following states","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2001.08339","snapshot_observed_at":"2026-08-14T11:15:52.567203Z","title":"Ludewig, G.C","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.567203Z"},"links":{"cited_paper":"/paper/2001.08339","citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:585ee757c4e4ff59e10aec9956b63ee4764f1c27f6327d27cd7a8059be34b035","observation_id":"3f24386a-9dbe-4e0e-a36b-5627ac09eb66","resolution":{"observed_at":"2026-08-14T11:15:52.567203Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1712.02952","last_updated":"2019-04-26T05:27:36Z","snapshot_observed_at":"2026-08-14T20:05:38.815438Z","submitted_at":"2017-12-08T06:15:18Z","title":"Topological phases on the hyperbolic plane: fractional bulk-boundary correspondence","version":4},"cited_work":{"arxiv_id":"1712.02952","doi":null,"metadata_source":"pith","pith_arxiv_id":"1712.02952","snapshot_observed_at":"2026-08-14T11:15:52.672217Z","title":"Topological phases on the hyperbolic plane: fractional bulk-boundary correspondence","venue":"cond-mat.str-el","work_id":"27c4acce-cfcd-4ee8-aacc-c2528543e719","year":2017},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.572504Z"},"links":{"cited_paper":"/paper/1712.02952","citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:0213ec8c5604b6f85b0f73a155e6ca01a49cbc1a5918c3b9989f5414d4bb0dec","observation_id":"6413ee30-9dfc-4ad4-8117-b2daf7ef666d","resolution":{"observed_at":"2026-08-14T11:15:52.679844Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.940108Z","title":"Nash et al.: Topological mechanics of gyroscopic metamater ials","venue":null,"work_id":"f5d5db9b-3f28-472a-848b-2478916e24c8","year":2015},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.577175Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:ac530573d64e1ae47134e3e85233a0e059e7f23a2fcf21dca6c0f1a09eadf3ae","observation_id":"e1bd2d88-9324-4866-97df-58a313df0f0e","resolution":{"observed_at":"2026-08-14T11:15:52.944995Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.923820Z","title":"Neeb.: Toric varieties and algebraic monoids","venue":null,"work_id":"5e6ac524-1416-4290-8faa-7b3fa04a30be","year":1992},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.581251Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:9a99b0756a430bbefa3e5cae2e05f77800d01a053d01c669fa51597572d0fca3","observation_id":"b8f237a5-f9c1-4a4a-865a-8934258350d6","resolution":{"observed_at":"2026-08-14T11:15:52.928973Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.905393Z","title":"Park.: The index theory of Toeplitz operators on the skew qu arter-plane","venue":null,"work_id":"de7e2252-a9c3-42bf-a9e8-aca64f219377","year":1988},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.587012Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:a4efb45fba3edfcc9922ad75d6af6ed5ad4171d774050123a23bdac1ea1729b2","observation_id":"d8413c64-856c-4af0-9c75-14ea3d5da790","resolution":{"observed_at":"2026-08-14T11:15:52.911433Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.885016Z","title":"Park.: Index theory and Toeplitz algebras on certain cones in Z2","venue":null,"work_id":"7b25cdec-56a9-4b7c-af4b-e733aea09d8a","year":1990},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.591926Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:291009c928b97faa14f4a662accaa580b0e0396ef6df698317dd000bbafd0b7f","observation_id":"77eb9625-748c-48a8-af9b-e3e558b1f17d","resolution":{"observed_at":"2026-08-14T11:15:52.891283Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.867987Z","title":null,"venue":null,"work_id":"c288b8c1-e6fd-49ca-8cb0-3d6a81263352","year":1991},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.597056Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:8008e73f0a1c7c4eafe6f148ca4970264f119553eb1a2994e2a7646459ef2358","observation_id":"ef4f5791-eb11-49d0-90ea-f53bd5d2902b","resolution":{"observed_at":"2026-08-14T11:15:52.873178Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.850342Z","title":"Prodan, H","venue":null,"work_id":"7e07d0c2-dff6-405f-99cc-cbbd734a92ff","year":null},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.602520Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:de1ef48acf239bcd2f3fc9a254c312fe2272a39056b06b97cb9fa77e68f33691","observation_id":"e15ca803-353a-4313-aab6-e21558d3dd12","resolution":{"observed_at":"2026-08-14T11:15:52.855319Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.831988Z","title":"Rechtsman et al.: Photonic Floquet topological insulators","venue":null,"work_id":"d267fcf4-ac57-4865-9363-af077f048f0a","year":2013},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.607745Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:8d76f351b2e192320558013fe0f16208c2fd8a9a57a5382fdd0237453f2af042","observation_id":"3e74daf4-d4f3-4cd1-9745-350d6656f2e5","resolution":{"observed_at":"2026-08-14T11:15:52.838723Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.812753Z","title":"Roe.: Partitioning non-compact manifolds and the dual Toeplit z prob- lem","venue":null,"work_id":"be3fb524-a2cd-4bfe-9882-5147a6d11984","year":1989},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.613159Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:abfdbbf053b3c6c2dd3b41975d274a2ad48a1dfa813919c7745aba7af3d78a1e","observation_id":"b7cb1d21-b724-4385-9bee-04119fafa301","resolution":{"observed_at":"2026-08-14T11:15:52.819347Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.795069Z","title":"Rørdam, F","venue":null,"work_id":"9b0f7410-445a-42ff-a907-4f5b3d18d051","year":2000},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.619407Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:50c6af9942b1e4c21bbe63e98f9e733986881da3d4354a3867c76cec35d5ed5a","observation_id":"085ddc3b-5530-4dcc-97bf-94a45e4807ed","resolution":{"observed_at":"2026-08-14T11:15:52.800974Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.775451Z","title":"Rieffel.: C∗-algebras associated with irrational rotations","venue":null,"work_id":"987c9e32-a5c8-4b9e-81a6-f7f08c580feb","year":1981},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.624298Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:3bed17c5c24fc75cc819eae99f36667abdef201a2ae256ffa918deee4b991d05","observation_id":"f551ca36-c27f-4e9b-9cfc-dcc46fc0a4b4","resolution":{"observed_at":"2026-08-14T11:15:52.780987Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.756658Z","title":"S¨ usstrunk, S.D","venue":null,"work_id":"8be8f2d9-5c0e-4bdb-b66c-d70b5d900697","year":2015},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.629212Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:26e5714cba4e2248372b7c3fe0e3275d2c4c55f4776bba67c5168bd83cee46ce","observation_id":"994072b1-5d71-43be-830b-a44dbf8e586b","resolution":{"observed_at":"2026-08-14T11:15:52.762235Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+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":"2026-08-14T11:15:52.739418Z","title":"Wegge-Olsen.: K-theory and C∗-algebras: A Friendly Approach","venue":null,"work_id":"b5231f22-4c3d-4b6e-a45a-8c14b3271053","year":1993},"citing_paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states","version":3},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-14T11:15:52.634152Z"},"links":{"citing_paper":"/paper/1908.09559"},"observation_digest":"sha256:17b5de0cb319fd1ce29a833fdeef70f8603865f9a213103216dab90a46689cd1","observation_id":"7ad8653c-fdf7-4dfb-af36-a242d66fdb4f","resolution":{"observed_at":"2026-08-14T11:15:52.744995Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-19T06:32:44.657259+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"1908.09559","last_updated":"2020-06-28T07:32:26Z","latest_version":3,"primary_category":"math-ph","snapshot_observed_at":"2026-08-16T03:37:40.501043Z","submitted_at":"2019-08-26T09:34:37Z","title":"Edge-following topological states"},"reference_resolution":{"displayed":33,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":4,"verified_exact":2,"verified_fuzzy":27},"total_outbound_references":33},"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":"2026-08-19T06:32:44.657259+00:00","source":"crossref"},{"observed_at":"2026-08-19T06:32:39.956319+00:00","source":"retraction_watch"}],"thesis":"As of 20 August 2026, this Paper Citation Record lists 33 of 33 outbound references and 0 inbound Pith citation observations for arXiv:1908.09559."}