{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1998:D6VE5T2DN22FT4FDMBQHGJMPAW","short_pith_number":"pith:D6VE5T2D","schema_version":"1.0","canonical_sha256":"1faa4ecf436eb459f0a3606073258f05a19f268cf61284f405977ea5a972ab2f","source":{"kind":"arxiv","id":"astro-ph/9812013","version":1},"attestation_state":"computed","paper":{"title":"Dark Matter in Disc Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bosma","submitted_at":"1998-12-01T11:29:07Z","abstract_excerpt":"Recent work on the mass distribution in spiral galaxies, using mainly HI observations, is reviewed. The principal problem is still to determine to what extent the dark matter is important in the inner parts of a galaxy, or in other words, how dominant is the self-gravitation of the disc. Studies of the shapes of rotation curves show that in detail there is sufficient individuality in spiral galaxies to prohibit the construction of ``Universal Rotation Curves''. A detailed account is given of the method of Athanassoula et al. (1987), where swing amplifier criteria are applied to set a range in "},"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":"astro-ph/9812013","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-12-01T11:29:07Z","cross_cats_sorted":[],"title_canon_sha256":"ff112df40529b003409118ffae80457952310c528e873a65cbee3909beb28f04","abstract_canon_sha256":"3c6a6c051cfce8dd54ced03d09d9db8a07d3addabac5e938e419ea47e30d23ca"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:16:23.741535Z","signature_b64":"fFx6w7xUSm/4KOgKYyE+qLxFyN5cYpyXU2X2Gc9/YkFlVPWApQYkEO9mfdxVjVamvDDRACT927I+ntvvaOmzAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1faa4ecf436eb459f0a3606073258f05a19f268cf61284f405977ea5a972ab2f","last_reissued_at":"2026-07-04T14:16:23.741026Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:16:23.741026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dark Matter in Disc Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bosma","submitted_at":"1998-12-01T11:29:07Z","abstract_excerpt":"Recent work on the mass distribution in spiral galaxies, using mainly HI observations, is reviewed. The principal problem is still to determine to what extent the dark matter is important in the inner parts of a galaxy, or in other words, how dominant is the self-gravitation of the disc. Studies of the shapes of rotation curves show that in detail there is sufficient individuality in spiral galaxies to prohibit the construction of ``Universal Rotation Curves''. A detailed account is given of the method of Athanassoula et al. (1987), where swing amplifier criteria are applied to set a range in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9812013","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/astro-ph/9812013/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":"astro-ph/9812013","created_at":"2026-07-04T14:16:23.741086+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9812013v1","created_at":"2026-07-04T14:16:23.741086+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9812013","created_at":"2026-07-04T14:16:23.741086+00:00"},{"alias_kind":"pith_short_12","alias_value":"D6VE5T2DN22F","created_at":"2026-07-04T14:16:23.741086+00:00"},{"alias_kind":"pith_short_16","alias_value":"D6VE5T2DN22FT4FD","created_at":"2026-07-04T14:16:23.741086+00:00"},{"alias_kind":"pith_short_8","alias_value":"D6VE5T2D","created_at":"2026-07-04T14:16:23.741086+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/D6VE5T2DN22FT4FDMBQHGJMPAW","json":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW.json","graph_json":"https://pith.science/api/pith-number/D6VE5T2DN22FT4FDMBQHGJMPAW/graph.json","events_json":"https://pith.science/api/pith-number/D6VE5T2DN22FT4FDMBQHGJMPAW/events.json","paper":"https://pith.science/paper/D6VE5T2D"},"agent_actions":{"view_html":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW","download_json":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW.json","view_paper":"https://pith.science/paper/D6VE5T2D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9812013&json=true","fetch_graph":"https://pith.science/api/pith-number/D6VE5T2DN22FT4FDMBQHGJMPAW/graph.json","fetch_events":"https://pith.science/api/pith-number/D6VE5T2DN22FT4FDMBQHGJMPAW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW/action/storage_attestation","attest_author":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW/action/author_attestation","sign_citation":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW/action/citation_signature","submit_replication":"https://pith.science/pith/D6VE5T2DN22FT4FDMBQHGJMPAW/action/replication_record"}},"created_at":"2026-07-04T14:16:23.741086+00:00","updated_at":"2026-07-04T14:16:23.741086+00:00"}