{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:M2TDMJCL5HUCE6Z67QV5JXSFCR","short_pith_number":"pith:M2TDMJCL","schema_version":"1.0","canonical_sha256":"66a636244be9e8227b3efc2bd4de4514484a980797c698be2dfb6ddddb0180ba","source":{"kind":"arxiv","id":"1504.03236","version":2},"attestation_state":"computed","paper":{"title":"A Warp in Progress: H I and Radio Continuum Observations of the Spiral NGC 3145","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bruce G. Elmegreen, Curtis Struck, Debra M. Elmegreen, Elias Brinks, Michele Kaufman","submitted_at":"2015-04-13T16:08:36Z","abstract_excerpt":"We present VLA H I and 6 cm radio continuum observations of the spiral NGC 3145 and H I observations of its two companions, NGC 3143 and PGC 029578. In optical images NGC 3145 has stellar arms that appear to cross, forming \"X\"-features. Our radio continuum observations rule out shock fronts at 3 of the 4 \"X\"-features. In the middle-to-outer disk, the H I line-profiles of NGC 3145 are skewed. Relative to the disk, the gas in the skewed wing of the line-profiles has z-motions away from us on the approaching side of the galaxy and z-motions of about the same magnitude (about 40 km/s) towards us o"},"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":"1504.03236","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-13T16:08:36Z","cross_cats_sorted":[],"title_canon_sha256":"df4ed25e24fde0cb4a5d78be2bd3d8cebc88ffeb93e0c999d26227d1ce8d4f21","abstract_canon_sha256":"4fc9e93c6f012c06daf5c7e9b9f66907f98a32d1848baf4c50464a1b52c21e0a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:10.534275Z","signature_b64":"Qjb1YLMZHK8O7O8qgvOBTT2NRl0GjmjV9qvQ0IbE7ViuIY7U5KcX0CjXo1jwMsg9YAmHFflhFE42yvNHBi38DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66a636244be9e8227b3efc2bd4de4514484a980797c698be2dfb6ddddb0180ba","last_reissued_at":"2026-05-18T01:35:10.533725Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:10.533725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Warp in Progress: H I and Radio Continuum Observations of the Spiral NGC 3145","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bruce G. Elmegreen, Curtis Struck, Debra M. Elmegreen, Elias Brinks, Michele Kaufman","submitted_at":"2015-04-13T16:08:36Z","abstract_excerpt":"We present VLA H I and 6 cm radio continuum observations of the spiral NGC 3145 and H I observations of its two companions, NGC 3143 and PGC 029578. In optical images NGC 3145 has stellar arms that appear to cross, forming \"X\"-features. Our radio continuum observations rule out shock fronts at 3 of the 4 \"X\"-features. In the middle-to-outer disk, the H I line-profiles of NGC 3145 are skewed. Relative to the disk, the gas in the skewed wing of the line-profiles has z-motions away from us on the approaching side of the galaxy and z-motions of about the same magnitude (about 40 km/s) towards us o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.03236","kind":"arxiv","version":2},"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":"1504.03236","created_at":"2026-05-18T01:35:10.533814+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.03236v2","created_at":"2026-05-18T01:35:10.533814+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.03236","created_at":"2026-05-18T01:35:10.533814+00:00"},{"alias_kind":"pith_short_12","alias_value":"M2TDMJCL5HUC","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_16","alias_value":"M2TDMJCL5HUCE6Z6","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_8","alias_value":"M2TDMJCL","created_at":"2026-05-18T12:29:29.992203+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/M2TDMJCL5HUCE6Z67QV5JXSFCR","json":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR.json","graph_json":"https://pith.science/api/pith-number/M2TDMJCL5HUCE6Z67QV5JXSFCR/graph.json","events_json":"https://pith.science/api/pith-number/M2TDMJCL5HUCE6Z67QV5JXSFCR/events.json","paper":"https://pith.science/paper/M2TDMJCL"},"agent_actions":{"view_html":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR","download_json":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR.json","view_paper":"https://pith.science/paper/M2TDMJCL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.03236&json=true","fetch_graph":"https://pith.science/api/pith-number/M2TDMJCL5HUCE6Z67QV5JXSFCR/graph.json","fetch_events":"https://pith.science/api/pith-number/M2TDMJCL5HUCE6Z67QV5JXSFCR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR/action/storage_attestation","attest_author":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR/action/author_attestation","sign_citation":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR/action/citation_signature","submit_replication":"https://pith.science/pith/M2TDMJCL5HUCE6Z67QV5JXSFCR/action/replication_record"}},"created_at":"2026-05-18T01:35:10.533814+00:00","updated_at":"2026-05-18T01:35:10.533814+00:00"}