{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:Y5ZUJ6SDXQHELTQJ4Y5TKDOKEX","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":"7c04a68eaccac6f90ad77f8cb182fbc17861860db75155ad57e232a6e61d4602","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T14:37:26Z","title_canon_sha256":"4db898e736cb96476e7229a6cd5f02bd004dceabc8908db3bdd7e4600af9c553"},"schema_version":"1.0","source":{"id":"1707.06120","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06120","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06120v1","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06120","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"Y5ZUJ6SDXQHE","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"Y5ZUJ6SDXQHELTQJ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"Y5ZUJ6SD","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:4b0673aff2e8845529a086e53c83dd2ab0a80510e0a4b8bd0d322432b599032d","target":"graph","created_at":"2026-05-18T00:31:12Z","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 new stringent limits on the mass $M_{bh}$ of the central supermassive black hole for a sample of 7 nearby galaxies. Our $M_{bh}$ estimates are based on the dynamical modeling of the central width of the nebular emission lines measured over subarcsecond apertures with the Hubble Space Telescope. The central stellar velocity dispersion $\\sigma_c$ of the sample galaxies is derived from new long-slit spectra from ground-based observations and the bulge effective radius is obtained from a two-dimensional photometric decomposition of the i-band images from the Sloan Digital Sky Survey. Th","authors_text":"2), (2) INAF-Osservatorio Astronomico di Padova, (3) Max-Planck-Institut fuer extraterrestrische Physik, 4), (4) Universitaets-Sternwarte Muenchen, (5) Centre for Astrophysics Research, A. Beifiori (3, A. Pizzella (1, E. Dalla Bont\\`a (1, E. M. Corsini (1, I. Pagotto (1), L. Costantin (1), L. Morelli (1, M. Sarzi (5) ((1) Dipartimento di Fisica e Astronomia `G. Galilei', Universit\\`a di Padova, University of Hertfordshire), V. Cuomo (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T14:37:26Z","title":"Stringent limits on the masses of the supermassive black holes in seven nearby galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06120","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":"sha256:607dcabc78a4002da135568cd4457a3ae0c2f94ce5e0497ffef0646b1a365968","target":"record","created_at":"2026-05-18T00:31:12Z","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":"7c04a68eaccac6f90ad77f8cb182fbc17861860db75155ad57e232a6e61d4602","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T14:37:26Z","title_canon_sha256":"4db898e736cb96476e7229a6cd5f02bd004dceabc8908db3bdd7e4600af9c553"},"schema_version":"1.0","source":{"id":"1707.06120","kind":"arxiv","version":1}},"canonical_sha256":"c77344fa43bc0e45ce09e63b350dca25e7f674a62f70bbb21b64b86ec391b93d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c77344fa43bc0e45ce09e63b350dca25e7f674a62f70bbb21b64b86ec391b93d","first_computed_at":"2026-05-18T00:31:12.213878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:12.213878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sMANTk3WA/gT18jrPlldrYJ9D/u2QD9mfRWGNFS2GcuUKMiBQUDk4fm/A0PBYfxzbW8CU0nRMXQsaRp0ljOtCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:12.214631Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06120","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:607dcabc78a4002da135568cd4457a3ae0c2f94ce5e0497ffef0646b1a365968","sha256:4b0673aff2e8845529a086e53c83dd2ab0a80510e0a4b8bd0d322432b599032d"],"state_sha256":"07e85722088357c667d6b6ac3fd842aa55e5fc3417e631ca4b8a552b38a43e7f"}