{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:NYWLT6SQ24QOJ4M5H4GE3YJKX3","short_pith_number":"pith:NYWLT6SQ","schema_version":"1.0","canonical_sha256":"6e2cb9fa50d720e4f19d3f0c4de12abedbfc80b76447716b961efdc76fe89c5f","source":{"kind":"arxiv","id":"1404.2620","version":2},"attestation_state":"computed","paper":{"title":"Gas and Stellar Motions and Observational Signatures of Co-Rotating Spiral Arms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daisuke Kawata (1), Jason A.S. Hunt (1), Mark Cropper (1) ((1) MSSL, Robert J.J. Grand (1), Stefano Pasetto (1), UCL)","submitted_at":"2014-04-09T20:18:47Z","abstract_excerpt":"We have observed a snapshot of our N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way-sized barred spiral galaxy in a similar way to how we can observe the Milky Way. The simulated galaxy shows a co-rotating spiral arm, i.e. the spiral arm rotates with the same speed as the circular speed. We observed the rotation and radial velocities of the gas and stars as a function of the distance from our assumed location of the observer at the three lines of sight on the disc plane, (l, b) = (90, 0), (120, 0) and (150,0) deg. We find that the stars tend to rotate slower (faster) behind (at"},"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":"1404.2620","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-09T20:18:47Z","cross_cats_sorted":[],"title_canon_sha256":"8e47478a5d8210e33f38331a928d1b50ac5cbedc28052757f8aab3d9e3d339d3","abstract_canon_sha256":"2fadbf9b57979a856bdef171130e0b188d011937789dbd36a5521ca1dc872cb3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:35.931702Z","signature_b64":"5mN907Y0p3imE+2IUbn+nKrU367TvLTj1mihwmJSr1KHokwV77rMqa8WRUL0+LEvgboeSJEOCOczOcgp1QHoDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e2cb9fa50d720e4f19d3f0c4de12abedbfc80b76447716b961efdc76fe89c5f","last_reissued_at":"2026-05-18T01:43:35.931229Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:35.931229Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gas and Stellar Motions and Observational Signatures of Co-Rotating Spiral Arms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daisuke Kawata (1), Jason A.S. Hunt (1), Mark Cropper (1) ((1) MSSL, Robert J.J. Grand (1), Stefano Pasetto (1), UCL)","submitted_at":"2014-04-09T20:18:47Z","abstract_excerpt":"We have observed a snapshot of our N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way-sized barred spiral galaxy in a similar way to how we can observe the Milky Way. The simulated galaxy shows a co-rotating spiral arm, i.e. the spiral arm rotates with the same speed as the circular speed. We observed the rotation and radial velocities of the gas and stars as a function of the distance from our assumed location of the observer at the three lines of sight on the disc plane, (l, b) = (90, 0), (120, 0) and (150,0) deg. We find that the stars tend to rotate slower (faster) behind (at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.2620","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":"1404.2620","created_at":"2026-05-18T01:43:35.931296+00:00"},{"alias_kind":"arxiv_version","alias_value":"1404.2620v2","created_at":"2026-05-18T01:43:35.931296+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.2620","created_at":"2026-05-18T01:43:35.931296+00:00"},{"alias_kind":"pith_short_12","alias_value":"NYWLT6SQ24QO","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_16","alias_value":"NYWLT6SQ24QOJ4M5","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_8","alias_value":"NYWLT6SQ","created_at":"2026-05-18T12:28:41.024544+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/NYWLT6SQ24QOJ4M5H4GE3YJKX3","json":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3.json","graph_json":"https://pith.science/api/pith-number/NYWLT6SQ24QOJ4M5H4GE3YJKX3/graph.json","events_json":"https://pith.science/api/pith-number/NYWLT6SQ24QOJ4M5H4GE3YJKX3/events.json","paper":"https://pith.science/paper/NYWLT6SQ"},"agent_actions":{"view_html":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3","download_json":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3.json","view_paper":"https://pith.science/paper/NYWLT6SQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1404.2620&json=true","fetch_graph":"https://pith.science/api/pith-number/NYWLT6SQ24QOJ4M5H4GE3YJKX3/graph.json","fetch_events":"https://pith.science/api/pith-number/NYWLT6SQ24QOJ4M5H4GE3YJKX3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3/action/storage_attestation","attest_author":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3/action/author_attestation","sign_citation":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3/action/citation_signature","submit_replication":"https://pith.science/pith/NYWLT6SQ24QOJ4M5H4GE3YJKX3/action/replication_record"}},"created_at":"2026-05-18T01:43:35.931296+00:00","updated_at":"2026-05-18T01:43:35.931296+00:00"}