{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:DS5KJQ5X7RH5ZAOD5RMDYN3F6N","short_pith_number":"pith:DS5KJQ5X","schema_version":"1.0","canonical_sha256":"1cbaa4c3b7fc4fdc81c3ec583c3765f34482f3f2d396e7dd147a0f97ce21e7fc","source":{"kind":"arxiv","id":"astro-ph/0211650","version":1},"attestation_state":"computed","paper":{"title":"Is there really a Black Hole at the center of NGC 4041? - Constraints from gas kinematics","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Capetti, A. Marconi, C. Scarlata, D. Batcheldor, D.J. Axon, D. Macchetto, H. Ford, J. Atkinson, J. Binney, J. Gerssen, L. Dressel, M.A. Hughes, M. Carollo, M.R. Merrifield, M. Stiavelli, R.P. van der Marel, W. Maciejewski, W. Sparks, Z. Tsvetanov","submitted_at":"2002-11-29T14:57:10Z","abstract_excerpt":"We present HST/STIS spectra of the Sbc spiral galaxy NGC 4041 which were used to map the velocity field of the gas in its nuclear region. We detect the presence of a compact (r~0.4\" ~40 pc), high surface brightness, rotating nuclear disk co-spatial with a nuclear star cluster. The disk is characterized by a rotation curve with a peak to peak amplitude of ~40 km/s and is systematically blueshifted by 10 - 20 km/s with respect to the galaxy systemic velocity. With the standard assumption of constant mass-to-light ratio and with the nuclear disk inclination taken from the outer disk, we find that"},"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/0211650","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-11-29T14:57:10Z","cross_cats_sorted":[],"title_canon_sha256":"0c1051ff9eef758ea784a5bc2181e11e569af879a629390c0f586d9c09a1768f","abstract_canon_sha256":"84798c508464ea8b21c691770913a8a251e90ebb456b247c8d2e1aaba1fed4c3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:31:20.012133Z","signature_b64":"lyvihUFuGkSNxi46K1e4EbfxH7cWftsis5T8PiLgqVlwANDDeVlmXxjSnjuLetiKxkSPPEIoivYrRauOnlMNCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cbaa4c3b7fc4fdc81c3ec583c3765f34482f3f2d396e7dd147a0f97ce21e7fc","last_reissued_at":"2026-07-04T16:31:20.011741Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:31:20.011741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Is there really a Black Hole at the center of NGC 4041? - Constraints from gas kinematics","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Capetti, A. Marconi, C. Scarlata, D. Batcheldor, D.J. Axon, D. Macchetto, H. Ford, J. Atkinson, J. Binney, J. Gerssen, L. Dressel, M.A. Hughes, M. Carollo, M.R. Merrifield, M. Stiavelli, R.P. van der Marel, W. Maciejewski, W. Sparks, Z. Tsvetanov","submitted_at":"2002-11-29T14:57:10Z","abstract_excerpt":"We present HST/STIS spectra of the Sbc spiral galaxy NGC 4041 which were used to map the velocity field of the gas in its nuclear region. We detect the presence of a compact (r~0.4\" ~40 pc), high surface brightness, rotating nuclear disk co-spatial with a nuclear star cluster. The disk is characterized by a rotation curve with a peak to peak amplitude of ~40 km/s and is systematically blueshifted by 10 - 20 km/s with respect to the galaxy systemic velocity. With the standard assumption of constant mass-to-light ratio and with the nuclear disk inclination taken from the outer disk, we find that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0211650","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/0211650/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/0211650","created_at":"2026-07-04T16:31:20.011798+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0211650v1","created_at":"2026-07-04T16:31:20.011798+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0211650","created_at":"2026-07-04T16:31:20.011798+00:00"},{"alias_kind":"pith_short_12","alias_value":"DS5KJQ5X7RH5","created_at":"2026-07-04T16:31:20.011798+00:00"},{"alias_kind":"pith_short_16","alias_value":"DS5KJQ5X7RH5ZAOD","created_at":"2026-07-04T16:31:20.011798+00:00"},{"alias_kind":"pith_short_8","alias_value":"DS5KJQ5X","created_at":"2026-07-04T16:31:20.011798+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/DS5KJQ5X7RH5ZAOD5RMDYN3F6N","json":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N.json","graph_json":"https://pith.science/api/pith-number/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/graph.json","events_json":"https://pith.science/api/pith-number/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/events.json","paper":"https://pith.science/paper/DS5KJQ5X"},"agent_actions":{"view_html":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N","download_json":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N.json","view_paper":"https://pith.science/paper/DS5KJQ5X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0211650&json=true","fetch_graph":"https://pith.science/api/pith-number/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/graph.json","fetch_events":"https://pith.science/api/pith-number/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/action/storage_attestation","attest_author":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/action/author_attestation","sign_citation":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/action/citation_signature","submit_replication":"https://pith.science/pith/DS5KJQ5X7RH5ZAOD5RMDYN3F6N/action/replication_record"}},"created_at":"2026-07-04T16:31:20.011798+00:00","updated_at":"2026-07-04T16:31:20.011798+00:00"}