{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:GTXN5KFXFKNJBQGVMAAOTLANAA","short_pith_number":"pith:GTXN5KFX","schema_version":"1.0","canonical_sha256":"34eedea8b72a9a90c0d56000e9ac0d003fabf9a58c9b18e28dcce5152a1d57d8","source":{"kind":"arxiv","id":"2201.04245","version":1},"attestation_state":"computed","paper":{"title":"Modelling annual scintillation arc variations in PSR J1643-1224 using the Large European Array for Pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"A. Corongiu, A. Melis, A. Possenti, B. W. Stappers, C. G. Bassa, D. J. Reardon, D. Perrodin, G. H. Janssen, G. Mall, H. Hu, I. Cognard, J. Antoniadis, J. W. McKee, K. J. Lee, K. Liu, L. Wang, M. B. Mickaliger, M. Burgay, M. Gaikwad, M. Pilia, O. Wucknitz, R. A. Main, R. Concu, R. Karuppusamy, S. A. Sanidas, S. Chen, T. Sprenger, W. W. Zhu","submitted_at":"2022-01-11T23:48:49Z","abstract_excerpt":"In this work we study variations in the parabolic scintillation arcs of the binary millisecond pulsar PSR J1643-1224 over five years using the Large European Array for Pulsars (LEAP). The 2D power spectrum of scintillation, called the secondary spectrum, often shows a parabolic distribution of power, where the arc curvature encodes the relative velocities and distances of the pulsar, ionised interstellar medium (IISM), and Earth. We observe a clear parabolic scintillation arc which varies in curvature throughout the year. The distribution of power in the secondary spectra are inconsistent with"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2201.04245","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-01-11T23:48:49Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"06c6a7ed54ed2134359a44faa5a08325670e12d9b5429df62b46cb5b09684c47","abstract_canon_sha256":"602f5e39ccf08f4d6e7359667921c110a2c69b77b8c1c677cd60edd10850b704"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:51:39.138533Z","signature_b64":"6fQtXNOxPNJRiZy0HxQucKeYMIqu1OE1r97VqWQtccOQRowIKQcs4Si0si2+KbITDPOtX9JIPZ3f/7KNgUyJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34eedea8b72a9a90c0d56000e9ac0d003fabf9a58c9b18e28dcce5152a1d57d8","last_reissued_at":"2026-07-05T03:51:39.138050Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:51:39.138050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Modelling annual scintillation arc variations in PSR J1643-1224 using the Large European Array for Pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"A. Corongiu, A. Melis, A. Possenti, B. W. Stappers, C. G. Bassa, D. J. Reardon, D. Perrodin, G. H. Janssen, G. Mall, H. Hu, I. Cognard, J. Antoniadis, J. W. McKee, K. J. Lee, K. Liu, L. Wang, M. B. Mickaliger, M. Burgay, M. Gaikwad, M. Pilia, O. Wucknitz, R. A. Main, R. Concu, R. Karuppusamy, S. A. Sanidas, S. Chen, T. Sprenger, W. W. Zhu","submitted_at":"2022-01-11T23:48:49Z","abstract_excerpt":"In this work we study variations in the parabolic scintillation arcs of the binary millisecond pulsar PSR J1643-1224 over five years using the Large European Array for Pulsars (LEAP). The 2D power spectrum of scintillation, called the secondary spectrum, often shows a parabolic distribution of power, where the arc curvature encodes the relative velocities and distances of the pulsar, ionised interstellar medium (IISM), and Earth. We observe a clear parabolic scintillation arc which varies in curvature throughout the year. The distribution of power in the secondary spectra are inconsistent with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.04245","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2201.04245/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2201.04245","created_at":"2026-07-05T03:51:39.138107+00:00"},{"alias_kind":"arxiv_version","alias_value":"2201.04245v1","created_at":"2026-07-05T03:51:39.138107+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.04245","created_at":"2026-07-05T03:51:39.138107+00:00"},{"alias_kind":"pith_short_12","alias_value":"GTXN5KFXFKNJ","created_at":"2026-07-05T03:51:39.138107+00:00"},{"alias_kind":"pith_short_16","alias_value":"GTXN5KFXFKNJBQGV","created_at":"2026-07-05T03:51:39.138107+00:00"},{"alias_kind":"pith_short_8","alias_value":"GTXN5KFX","created_at":"2026-07-05T03:51:39.138107+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2512.10795","citing_title":"Reaching diffraction-limited localization with coherent PTAs","ref_index":35,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA","json":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA.json","graph_json":"https://pith.science/api/pith-number/GTXN5KFXFKNJBQGVMAAOTLANAA/graph.json","events_json":"https://pith.science/api/pith-number/GTXN5KFXFKNJBQGVMAAOTLANAA/events.json","paper":"https://pith.science/paper/GTXN5KFX"},"agent_actions":{"view_html":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA","download_json":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA.json","view_paper":"https://pith.science/paper/GTXN5KFX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2201.04245&json=true","fetch_graph":"https://pith.science/api/pith-number/GTXN5KFXFKNJBQGVMAAOTLANAA/graph.json","fetch_events":"https://pith.science/api/pith-number/GTXN5KFXFKNJBQGVMAAOTLANAA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA/action/storage_attestation","attest_author":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA/action/author_attestation","sign_citation":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA/action/citation_signature","submit_replication":"https://pith.science/pith/GTXN5KFXFKNJBQGVMAAOTLANAA/action/replication_record"}},"created_at":"2026-07-05T03:51:39.138107+00:00","updated_at":"2026-07-05T03:51:39.138107+00:00"}