{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:D5QHLSWMALAJYLRUHRE4UH6L4F","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1d0e1ff63edb6e69e354c19796a1aee8fcf3e2c126c0099f31b4bac984e3989b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-31T15:49:41Z","title_canon_sha256":"56b2842360e915b61a124a52fe700f10e4984c3f3cebc55c8b1ec158d96cb1a4"},"schema_version":"1.0","source":{"id":"astro-ph/9807340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9807340","created_at":"2026-05-18T00:53:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9807340v1","created_at":"2026-05-18T00:53:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9807340","created_at":"2026-05-18T00:53:28Z"},{"alias_kind":"pith_short_12","alias_value":"D5QHLSWMALAJ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"D5QHLSWMALAJYLRU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"D5QHLSWM","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:146ec6dbd9841084c889118045ae80ece377f49a876e85b3b78473312d2ebc34","target":"graph","created_at":"2026-05-18T00:53:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We have obtained optical CCD spectroscopy along the major axes of 22 nearby spiral galaxies of Sb and Sc types in order to analyze their rotation curves. By subtracting the stellar continuum emission, we have obtained position velocity (PV) diagrams of the H alpha and [NII] lines. We point out that the H alphaline is often superposed by a broad stellar absorption feature (Balmer wind) in the nuclear regions, and, therefore, the [NII] line is a better tracer of kinematics in the central a few hundred pc regions. By applying the envelope-tracing technique to the H alpha and [NII] PV diagrams, we","authors_text":"Akihiko Tomita, Mareki Honma, Yoichi Takeda, Yoshiaki SOFUE, Yoshinori Tutui","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-07-31T15:49:41Z","title":"Nuclear-to-Disk Rotation Curves of Galaxies in the H_alpha and [NII] Emission Lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9807340","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:8721f913c28640e40b4e5281ed3ccf9b9149642b478decc36e06c9160436d3d9","target":"record","created_at":"2026-05-18T00:53:28Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1d0e1ff63edb6e69e354c19796a1aee8fcf3e2c126c0099f31b4bac984e3989b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-31T15:49:41Z","title_canon_sha256":"56b2842360e915b61a124a52fe700f10e4984c3f3cebc55c8b1ec158d96cb1a4"},"schema_version":"1.0","source":{"id":"astro-ph/9807340","kind":"arxiv","version":1}},"canonical_sha256":"1f6075cacc02c09c2e343c49ca1fcbe17be225916c6e8a54ec06e53ed54cbe82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f6075cacc02c09c2e343c49ca1fcbe17be225916c6e8a54ec06e53ed54cbe82","first_computed_at":"2026-05-18T00:53:28.186900Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:28.186900Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PizuDA5/ZHvuWRkM+Z0u7QvEIgB4xY7+KCpszgP0FoyZOy8N23K5ZK8RJE/KP0+Yvy4mG2dkyYKUoxCo0x/CDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:28.187254Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9807340","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8721f913c28640e40b4e5281ed3ccf9b9149642b478decc36e06c9160436d3d9","sha256:146ec6dbd9841084c889118045ae80ece377f49a876e85b3b78473312d2ebc34"],"state_sha256":"7818afa9f8de69c3580ecf98870d5639f3aba11fc99e4e1f9665cfbe2d0587ae"}