{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:KY4LWFXGWFNRCKI6VQ7VJRKYNK","short_pith_number":"pith:KY4LWFXG","schema_version":"1.0","canonical_sha256":"5638bb16e6b15b11291eac3f54c5586abb2f6e2032e9d2608d5ee60e01fb80c1","source":{"kind":"arxiv","id":"1903.02087","version":1},"attestation_state":"computed","paper":{"title":"Probing pulsar scattering between 120 and 280 MHz with the MWA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"B. W. Meyers (ICRAR Curtin), F. Kirsten (Chalmers University), J.-P. Macquart (ICRAR Curtin), N. D. R. Bhat (ICRAR Curtin), S. E. Tremblay (ICRAR Curtin), S. M. Ord (CSIRO)","submitted_at":"2019-03-01T14:57:50Z","abstract_excerpt":"The high sensitivity and wide frequency coverage of the Murchison Widefield Array allow for the measurement of the spectral scaling of the pulsar scattering timescale, $\\alpha$, from a single observation. Here we present three case studies targeted at bright, strongly scattered pulsars J0534+2200 (the Crab pulsar), J0835-4510 (the Vela pulsar) and J0742-2822. We measure the scattering spectral indices to be $-3.8\\pm0.2$, $-4.0\\pm1.5$, and $-2.5\\pm0.6$ for the Crab, Vela, and J0742-2822, respectively. We find that the scattered profiles of both Vela and J0742-2822 are best described by a thin s"},"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":"1903.02087","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-01T14:57:50Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"bcf746ebbf24ff91f500fc5566131c32e635a75d2edf2132b54126e10bf06764","abstract_canon_sha256":"5fad53d5d4a45729ba07dbd3b7b0de0beff7472ee8ad1ee5886069e0939d4eb9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:30.096074Z","signature_b64":"xA1jxiE7f9XPhTrqXAAH29opf2bQVQgMA3F9qRLDuT3yTorOecSviT4APbMhIA6kgTtMa6/cBO6QaUUkSkM1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5638bb16e6b15b11291eac3f54c5586abb2f6e2032e9d2608d5ee60e01fb80c1","last_reissued_at":"2026-05-17T23:48:30.095281Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:30.095281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing pulsar scattering between 120 and 280 MHz with the MWA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"B. W. Meyers (ICRAR Curtin), F. Kirsten (Chalmers University), J.-P. Macquart (ICRAR Curtin), N. D. R. Bhat (ICRAR Curtin), S. E. Tremblay (ICRAR Curtin), S. M. Ord (CSIRO)","submitted_at":"2019-03-01T14:57:50Z","abstract_excerpt":"The high sensitivity and wide frequency coverage of the Murchison Widefield Array allow for the measurement of the spectral scaling of the pulsar scattering timescale, $\\alpha$, from a single observation. Here we present three case studies targeted at bright, strongly scattered pulsars J0534+2200 (the Crab pulsar), J0835-4510 (the Vela pulsar) and J0742-2822. We measure the scattering spectral indices to be $-3.8\\pm0.2$, $-4.0\\pm1.5$, and $-2.5\\pm0.6$ for the Crab, Vela, and J0742-2822, respectively. We find that the scattered profiles of both Vela and J0742-2822 are best described by a thin s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02087","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":""},"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":"1903.02087","created_at":"2026-05-17T23:48:30.095427+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.02087v1","created_at":"2026-05-17T23:48:30.095427+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02087","created_at":"2026-05-17T23:48:30.095427+00:00"},{"alias_kind":"pith_short_12","alias_value":"KY4LWFXGWFNR","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"KY4LWFXGWFNRCKI6","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"KY4LWFXG","created_at":"2026-05-18T12:33:21.387695+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.08106","citing_title":"The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey--IV. Survey update and an atlas of 205 non-recycled southern pulsars","ref_index":69,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK","json":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK.json","graph_json":"https://pith.science/api/pith-number/KY4LWFXGWFNRCKI6VQ7VJRKYNK/graph.json","events_json":"https://pith.science/api/pith-number/KY4LWFXGWFNRCKI6VQ7VJRKYNK/events.json","paper":"https://pith.science/paper/KY4LWFXG"},"agent_actions":{"view_html":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK","download_json":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK.json","view_paper":"https://pith.science/paper/KY4LWFXG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.02087&json=true","fetch_graph":"https://pith.science/api/pith-number/KY4LWFXGWFNRCKI6VQ7VJRKYNK/graph.json","fetch_events":"https://pith.science/api/pith-number/KY4LWFXGWFNRCKI6VQ7VJRKYNK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK/action/storage_attestation","attest_author":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK/action/author_attestation","sign_citation":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK/action/citation_signature","submit_replication":"https://pith.science/pith/KY4LWFXGWFNRCKI6VQ7VJRKYNK/action/replication_record"}},"created_at":"2026-05-17T23:48:30.095427+00:00","updated_at":"2026-05-17T23:48:30.095427+00:00"}