{"as_of":"2026-08-18T09:32:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:35e26534558636fe8ffb6ea3343fb9c6719eba12803a3fb6085fdaebf083ec48","coverage":[{"denominator":0,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":5,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":5,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-18T06:34:40.430872+00:00","state":"measured"},{"denominator":5,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":5,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T14:23:04.237153Z","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":"2026-07-04T07:29:39.310196Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2106.05977","snapshot_observed_at":"2026-08-10T14:23:04.237153Z","title":"Brivio, O.J.P","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2501.15500","last_updated":"2025-06-03T15:08:50Z","snapshot_observed_at":"2026-08-13T20:51:21.499167Z","submitted_at":"2025-01-26T12:16:55Z","title":"Analysis of axion-like particles in a top-quark pair production at the CLIC","version":2},"reference_index":104,"source":"pdf_text","source_observed_at":"2026-08-10T14:23:04.237153Z"},"links":{"cited_paper":"/paper/2106.05977","citing_paper":"/paper/2501.15500"},"observation_digest":"sha256:f0e1113f8bac98d66bbf66975a3d9e31a1a7e7bbd6a6f3f6754da19bc9e4388c","observation_id":"392d5bab-6865-4d3a-8103-1b5729921ea2","resolution":{"observed_at":"2026-08-10T14:23:04.237153Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2106.05977","snapshot_observed_at":"2026-08-07T15:17:25.957334Z","title":"Unitarity constraints on ALP interactions,","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2505.15884","last_updated":"2025-05-21T18:00:00Z","snapshot_observed_at":"2026-08-17T17:58:48.831085Z","submitted_at":"2025-05-21T18:00:00Z","title":"String Theory and Grand Unification Suggest a Sub-Microelectronvolt QCD Axion","version":1},"reference_index":129,"source":"pdf_text","source_observed_at":"2026-08-07T15:17:25.957334Z"},"links":{"cited_paper":"/paper/2106.05977","citing_paper":"/paper/2505.15884"},"observation_digest":"sha256:4d56b9ef9ebd4b89f29c049bf16f6927a3d44a71406b319e0863395af965f46a","observation_id":"2da77756-7c5b-4990-8bd3-d9e627e536b9","resolution":{"observed_at":"2026-08-07T15:17:25.957334Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2106.05977","snapshot_observed_at":"2026-08-04T09:47:55.989463Z","title":"Brivio, O.J.P","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2510.13953","last_updated":"2026-07-18T09:58:36Z","snapshot_observed_at":"2026-08-13T17:17:50.875804Z","submitted_at":"2025-10-15T18:00:02Z","title":"Positivity and partial wave unitarity bounds on ALP theories via amplitude methods","version":2},"reference_index":57,"source":"pdf_text","source_observed_at":"2026-08-04T09:47:55.989463Z"},"links":{"cited_paper":"/paper/2106.05977","citing_paper":"/paper/2510.13953"},"observation_digest":"sha256:0ebe8f3c1f5643d7d66145c485d1fca9b8b6508f30a44ff8d543fd2ebc686ed9","observation_id":"db6edf26-2cde-485b-913e-e178828d6a7c","resolution":{"observed_at":"2026-08-04T09:47:55.989463Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions","version":2},"cited_work":{"arxiv_id":"2106.05977","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":"2106.05977","snapshot_observed_at":"2026-07-04T07:29:39.310196Z","title":"Unitarity constraints on ALP interactions,","venue":null,"work_id":"05e0dad8-d91f-4626-9c62-0eb12dd93113","year":2021},"citing_paper":{"arxiv_id":"2606.21650","last_updated":"2026-06-19T18:00:00Z","snapshot_observed_at":"2026-08-13T07:59:28.346911Z","submitted_at":"2026-06-19T18:00:00Z","title":"Quantum Gravity Cutoff from Axions: A Type IIB Landscape Study","version":1},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-06-26T13:22:57.662072Z"},"links":{"cited_paper":"/paper/2106.05977","citing_paper":"/paper/2606.21650"},"observation_digest":"sha256:2272ab894b1b5eb676788eef7d3001cbaaa448370de00d1587e69687a78b575e","observation_id":"31d5c65a-e147-45ff-9951-a8cab86fa492","resolution":{"observed_at":"2026-07-04T07:29:39.311490Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-18T06:34:40.430872+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2106.05977","snapshot_observed_at":"2026-08-01T07:02:17.229602Z","title":"Brivio, O","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2607.21712","last_updated":"2026-07-23T18:00:21Z","snapshot_observed_at":"2026-08-15T15:41:16.957233Z","submitted_at":"2026-07-23T18:00:21Z","title":"ALP pair production at the LHC","version":1},"reference_index":140,"source":"pdf_text","source_observed_at":"2026-08-01T07:02:17.229602Z"},"links":{"cited_paper":"/paper/2106.05977","citing_paper":"/paper/2607.21712"},"observation_digest":"sha256:ace4c925c1c8449edd0313f6fc2f2277cfb38677a3846b1d03b3092a7b25504b","observation_id":"a4b8737a-fc71-408d-8d4b-e266b60d9e2d","resolution":{"observed_at":"2026-08-01T07:02:17.229602Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"links":{"evidence":"/evidence","html":"/paper/2106.05977/citation-record","integrity":"/paper/2106.05977/integrity","json":"/paper/2106.05977/citation-record.json","paper":"/paper/2106.05977"},"outbound":[],"paper":{"arxiv_id":"2106.05977","last_updated":"2021-09-24T16:21:01Z","latest_version":2,"primary_category":"hep-ph","snapshot_observed_at":"2026-08-17T16:53:27.935802Z","submitted_at":"2021-06-10T18:00:02Z","title":"Unitarity constraints on ALP interactions"},"reference_resolution":{"displayed":0,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":0,"verified_exact":0,"verified_fuzzy":0},"total_outbound_references":0},"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":"2026-08-18T06:34:40.430872+00:00","source":"crossref"},{"observed_at":"2026-08-18T06:34:34.496301+00:00","source":"retraction_watch"}],"thesis":"As of 18 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 5 inbound Pith citation observations for arXiv:2106.05977."}