{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:EWVAKKU27XJC6FJKDZ6JK7LBJV","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":"1881e7eaa0e53d238a072080c5e113a2c3323d88fbfcca19f63f38af87bd46c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-14T11:36:26Z","title_canon_sha256":"c675e017280b0091d471e90faaaaf9200e1e60c5c8071516cdf9cc64663dd3f2"},"schema_version":"1.0","source":{"id":"1102.2736","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.2736","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"arxiv_version","alias_value":"1102.2736v1","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.2736","created_at":"2026-05-18T02:03:11Z"},{"alias_kind":"pith_short_12","alias_value":"EWVAKKU27XJC","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"EWVAKKU27XJC6FJK","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"EWVAKKU2","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:4ab2efc265112fb2090c8b5b07d398863399286a0ce14e34227fa60cd2e18037","target":"graph","created_at":"2026-05-18T02:03:11Z","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":"NGC 4486A is a low-luminosity elliptical galaxy harbouring an edge-on nuclear disk of stars and dust. It is known to host a super-massive black hole. We study its large-scale kinematics and stellar population along the major axis to investigate the link between the nuclear and global properties. We use long-slit medium-resolution optical spectra that we fit against stellar population models. The SSP-equivalent age is about 12 Gyr old throughout the body of the galaxy, and its metallicity decreases from [Fe/H] = 0.18 near the centre to sub-solar values in the outskirts. The metallicity gradient","authors_text":"Mina Koleva, Philippe Prugniel, Sven De Rijcke, Werner Zeilinger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-14T11:36:26Z","title":"Kinematics and stellar population of NGC 4486A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.2736","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":"sha256:3c18ab0733ee6768b0888346183624c5eb96922bde821a25f93c1613a491ff75","target":"record","created_at":"2026-05-18T02:03:11Z","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":"1881e7eaa0e53d238a072080c5e113a2c3323d88fbfcca19f63f38af87bd46c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-02-14T11:36:26Z","title_canon_sha256":"c675e017280b0091d471e90faaaaf9200e1e60c5c8071516cdf9cc64663dd3f2"},"schema_version":"1.0","source":{"id":"1102.2736","kind":"arxiv","version":1}},"canonical_sha256":"25aa052a9afdd22f152a1e7c957d614d4160f440e1e25206725c07de9bcd3d40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"25aa052a9afdd22f152a1e7c957d614d4160f440e1e25206725c07de9bcd3d40","first_computed_at":"2026-05-18T02:03:11.448116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:11.448116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oTseZdKEoCtBcXN56dJ2W9pnLUt0eFT4ykLYa52g1BbmLxTRUsdaWCMxTG0Z+Y85bRYVAy2g6Y+gJ3IrqVp2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:11.448757Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.2736","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c18ab0733ee6768b0888346183624c5eb96922bde821a25f93c1613a491ff75","sha256:4ab2efc265112fb2090c8b5b07d398863399286a0ce14e34227fa60cd2e18037"],"state_sha256":"905311d676e7c2fb1894375c79c15648e6351994f5182f0fcf78b6212a20edeb"}