{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:MDYD3HBKHAJLBPRPT57ZDVADKD","short_pith_number":"pith:MDYD3HBK","schema_version":"1.0","canonical_sha256":"60f03d9c2a3812b0be2f9f7f91d40350ee210d554638eca5311c520f5ab13efd","source":{"kind":"arxiv","id":"1310.8033","version":1},"attestation_state":"computed","paper":{"title":"Multi-Epoch Very Long Baseline Interferometric Observations of the Nuclear Starburst Region of NGC 253: Improved modelling of the supernova and star-formation rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Emil Lenc, Hayden Rampadarath, John S. Morgan, Steven J. Tingay","submitted_at":"2013-10-30T05:44:48Z","abstract_excerpt":"The results of multi-epoch observations of the southern starburst galaxy, NGC 253, with the Australian Long Baseline Array (LBA) at 2.3 GHz are presented. As with previous radio interferometric observations of this galaxy, no new sources were discovered. By combining the results of this survey with Very Large Array observations at higher frequencies from the literature, spectra were derived and a free-free absorption model was fitted of 20 known sources in NGC 253. The results were found to be consistent with previous studies. The supernova remnant, 5.48-43.3, was imaged with the highest sensi"},"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":"1310.8033","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-30T05:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"97599b29c16da947542f2da9315951bc3cddf598beeff6a8cf473a657effc18f","abstract_canon_sha256":"a51898f2eccf66329f334c6ca341057d3110c474999746726af54e46893a6193"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:47.474964Z","signature_b64":"JasdfN/2kTvzJD3Xb0Uc3Ys39UN6P9r3fTlouZ+t8J2jsrSNEE2wqqkhSX+B/yOBrwxZCaUf8/b+rZ4jJld2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60f03d9c2a3812b0be2f9f7f91d40350ee210d554638eca5311c520f5ab13efd","last_reissued_at":"2026-05-18T01:46:47.474232Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:47.474232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-Epoch Very Long Baseline Interferometric Observations of the Nuclear Starburst Region of NGC 253: Improved modelling of the supernova and star-formation rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Emil Lenc, Hayden Rampadarath, John S. Morgan, Steven J. Tingay","submitted_at":"2013-10-30T05:44:48Z","abstract_excerpt":"The results of multi-epoch observations of the southern starburst galaxy, NGC 253, with the Australian Long Baseline Array (LBA) at 2.3 GHz are presented. As with previous radio interferometric observations of this galaxy, no new sources were discovered. By combining the results of this survey with Very Large Array observations at higher frequencies from the literature, spectra were derived and a free-free absorption model was fitted of 20 known sources in NGC 253. The results were found to be consistent with previous studies. The supernova remnant, 5.48-43.3, was imaged with the highest sensi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8033","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":"1310.8033","created_at":"2026-05-18T01:46:47.474367+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.8033v1","created_at":"2026-05-18T01:46:47.474367+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8033","created_at":"2026-05-18T01:46:47.474367+00:00"},{"alias_kind":"pith_short_12","alias_value":"MDYD3HBKHAJL","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_16","alias_value":"MDYD3HBKHAJLBPRP","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_8","alias_value":"MDYD3HBK","created_at":"2026-05-18T12:27:52.871228+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD","json":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD.json","graph_json":"https://pith.science/api/pith-number/MDYD3HBKHAJLBPRPT57ZDVADKD/graph.json","events_json":"https://pith.science/api/pith-number/MDYD3HBKHAJLBPRPT57ZDVADKD/events.json","paper":"https://pith.science/paper/MDYD3HBK"},"agent_actions":{"view_html":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD","download_json":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD.json","view_paper":"https://pith.science/paper/MDYD3HBK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.8033&json=true","fetch_graph":"https://pith.science/api/pith-number/MDYD3HBKHAJLBPRPT57ZDVADKD/graph.json","fetch_events":"https://pith.science/api/pith-number/MDYD3HBKHAJLBPRPT57ZDVADKD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD/action/storage_attestation","attest_author":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD/action/author_attestation","sign_citation":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD/action/citation_signature","submit_replication":"https://pith.science/pith/MDYD3HBKHAJLBPRPT57ZDVADKD/action/replication_record"}},"created_at":"2026-05-18T01:46:47.474367+00:00","updated_at":"2026-05-18T01:46:47.474367+00:00"}