{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KKAQSEH6U7JIQI7MONFTEULSIR","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":"d2b752965067157ef59360889a60f7d7d72feeaebcc364ba0dd34ef0478e608a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-20T02:21:15Z","title_canon_sha256":"1a3b60a52ac4af0f6fe309adb4e6cf6ac57e066eaca415909f307828f2d5c4e9"},"schema_version":"1.0","source":{"id":"1601.05151","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.05151","created_at":"2026-05-18T01:19:01Z"},{"alias_kind":"arxiv_version","alias_value":"1601.05151v2","created_at":"2026-05-18T01:19:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.05151","created_at":"2026-05-18T01:19:01Z"},{"alias_kind":"pith_short_12","alias_value":"KKAQSEH6U7JI","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KKAQSEH6U7JIQI7M","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KKAQSEH6","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:f8ad8fe367b31fc9ef784e35cc73b1226e46a008178adb9f61ad0d1e5a8ceca2","target":"graph","created_at":"2026-05-18T01:19:01Z","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":"The identification of galaxies with `overly massive' black holes requires two measurements: a black hole mass (M_bh) and a host spheroid mass (M_sph,*). Here we provide our measurements for NGC 1277. Our structural decomposition reveals that NGC 1277 is dominated by a `classical' spheroid with a Sersic index n=5.3, a half-light radius R_e=2.1 kpc, and a stellar mass of 2.7x10^{11} M_sun (using M_*/L_V=11.65, Martin-Navarro et al.). This mass is an order of magnitude greater than originally reported. Using the latest (M_bh)-n, (M_bh)-(M_sph,*) and (M_bh)-sigma relations, the expected black hole","authors_text":"Alister W. Graham, A. Marconi, Anne M. Medling, Beverly Watson, D. Batcheldor, Giulia A. D. Savorgnan, Mark Durr\\'e, Nicholas Scott","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-20T02:21:15Z","title":"A normal supermassive black hole in NGC 1277"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.05151","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":"sha256:19a5e73847d6900ca5400d496f86a55ee09c1f122f44f0fe32aa756a2883966e","target":"record","created_at":"2026-05-18T01:19:01Z","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":"d2b752965067157ef59360889a60f7d7d72feeaebcc364ba0dd34ef0478e608a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-20T02:21:15Z","title_canon_sha256":"1a3b60a52ac4af0f6fe309adb4e6cf6ac57e066eaca415909f307828f2d5c4e9"},"schema_version":"1.0","source":{"id":"1601.05151","kind":"arxiv","version":2}},"canonical_sha256":"52810910fea7d28823ec734b32517244723ad2be0c157bc398ecc6e01ae527f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52810910fea7d28823ec734b32517244723ad2be0c157bc398ecc6e01ae527f1","first_computed_at":"2026-05-18T01:19:01.282566Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:01.282566Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2ZI3xi7QBJTs7cZRJT9PevG0Yi4qvEQ2nrATvWhCAtJlptYp/qklFvBQZjF7JYdKDDt9eMjPPFTXZa5zfXj4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:01.283081Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.05151","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19a5e73847d6900ca5400d496f86a55ee09c1f122f44f0fe32aa756a2883966e","sha256:f8ad8fe367b31fc9ef784e35cc73b1226e46a008178adb9f61ad0d1e5a8ceca2"],"state_sha256":"d8dbdd4db240a33994b9f813cc222c1f966acd29adb5c5343755bc7d83dd2791"}