{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:X2TKCOC4J7EY33VHJLYBYXGDMN","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":"9b4996e73063b8af3bd57c36ba383576a38e95f864431540254244802d273412","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-13T21:37:04Z","title_canon_sha256":"c21abec6fd43e5aeab25ca7f3406f64d433a605f429f284078509018d745ce31"},"schema_version":"1.0","source":{"id":"1610.04269","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04269","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04269v2","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04269","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"pith_short_12","alias_value":"X2TKCOC4J7EY","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"X2TKCOC4J7EY33VH","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"X2TKCOC4","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:6ec04cc6abffe496e438e9b3a4c38bd369b89a28275fdce90e226b2d16e669c6","target":"graph","created_at":"2026-05-18T00:54:16Z","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 present our mass estimate of the central black hole in the isolated spiral galaxy NGC 4414. Using natural guide star adaptive optics assisted observations with the Gemini Near-Infrared Integral Field Spectrometer (NIFS) and the natural seeing Gemini Multi-Object Spectrographs-North (GMOS), we derived two-dimensional stellar kinematic maps of NGC 4414 covering the central 1.5 arcsec and 10 arcsec, respectively, at a NIFS spatial resolution of 0.13 arcsec. The kinematic maps reveal a regular rotation pattern and a central velocity dispersion dip down to around 105 km/s. We constructed dynamic","authors_text":"Davor Krajnovi\\'c, Eric Emsellem, Glenn van de Ven, John Magorrian, Marc Sarzi, Martin A. Bourne, Michele Cappellari, Richard M. McDermid, Sabine Thater, Tim de Zeeuw","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-13T21:37:04Z","title":"A low upper mass limit for the central black hole in the late-type galaxy NGC 4414"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04269","kind":"arxiv","version":2},"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":"sha256:549729a6adb653b2436e0e0f3eccc18f32d1eb1f9ce5daf236ee989013d8a20f","target":"record","created_at":"2026-05-18T00:54:16Z","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":"9b4996e73063b8af3bd57c36ba383576a38e95f864431540254244802d273412","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-13T21:37:04Z","title_canon_sha256":"c21abec6fd43e5aeab25ca7f3406f64d433a605f429f284078509018d745ce31"},"schema_version":"1.0","source":{"id":"1610.04269","kind":"arxiv","version":2}},"canonical_sha256":"bea6a1385c4fc98deea74af01c5cc3636f2e23829b9bea4bc5c774f59c6ad995","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bea6a1385c4fc98deea74af01c5cc3636f2e23829b9bea4bc5c774f59c6ad995","first_computed_at":"2026-05-18T00:54:16.446557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:16.446557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E8V7auaELq4J1xYoAdazqI4y0uU4z+sDzLWpePE6CaSTBsfMwBQYWm7LMNtY5ALqqaihAXjgORs+SFdRsmIfCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:16.447162Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.04269","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:549729a6adb653b2436e0e0f3eccc18f32d1eb1f9ce5daf236ee989013d8a20f","sha256:6ec04cc6abffe496e438e9b3a4c38bd369b89a28275fdce90e226b2d16e669c6"],"state_sha256":"8a0f3a3c1010b130a6b32faa313aebeda33c3cfd8915750ddaf8cd4ed3d9c697"}