{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RQ2V65TQ7TFEMR2XZXTZS6L3CQ","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":"5157ec4808b94f2d2e2a4288fae49e01967b6f27617f208e2c84a16f8dcd7a5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-18T20:00:04Z","title_canon_sha256":"07b1a25d4b0bfb10fae347a0f1e732d5442fa3530a2086c58ae61700f12563e4"},"schema_version":"1.0","source":{"id":"1303.4393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4393","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4393v1","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4393","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"pith_short_12","alias_value":"RQ2V65TQ7TFE","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"RQ2V65TQ7TFEMR2X","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"RQ2V65TQ","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:c4afb5477ddf1a0b0424801bb5f8e2d187a4e8faeee361f0d15f0a9b42acbb54","target":"graph","created_at":"2026-05-18T01:51:01Z","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":"We have tested the effect of spatial gradients in stellar mass-to-light ratio (Y) on measurements of black hole masses (MBH) derived from stellar orbit superposition models. Such models construct a static gravitational potential for a galaxy and its central black hole, but typically assume spatially uniform Y. We have modeled three giant elliptical galaxies with gradients alpha = d(log Y)/d(log r) from -0.2 to +0.1. Color and line strength gradients suggest mildly negative alpha in these galaxies. Introducing a negative (positive) gradient in Y increases (decreases) the enclosed stellar mass n","authors_text":"Chung-Pei Ma (UC Berkeley), Jenny E. Greene (Princeton), Karl Gebhardt (UT Austin), Nicholas J. McConnell (IfA, Shi-Fan S. Chen (Phillips Exeter Academy), Tod R. Lauer (NOAO), University of Hawaii)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-18T20:00:04Z","title":"The Effect of Spatial Gradients in Stellar Mass-to-Light Ratio on Black Hole Mass Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4393","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:e20a5be88b835e293a93b01505dd0a17874089b1bcb380c61a5fc6fc6d760485","target":"record","created_at":"2026-05-18T01:51:01Z","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":"5157ec4808b94f2d2e2a4288fae49e01967b6f27617f208e2c84a16f8dcd7a5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-18T20:00:04Z","title_canon_sha256":"07b1a25d4b0bfb10fae347a0f1e732d5442fa3530a2086c58ae61700f12563e4"},"schema_version":"1.0","source":{"id":"1303.4393","kind":"arxiv","version":1}},"canonical_sha256":"8c355f7670fcca464757cde799797b1421bf6469bb00d5e55a19d8dbfe4e537f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c355f7670fcca464757cde799797b1421bf6469bb00d5e55a19d8dbfe4e537f","first_computed_at":"2026-05-18T01:51:01.052796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:01.052796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PWwka9GL9JGSh5mIkhCdZuafbBV3kUKUaVs5FwdO/KOKQ1eqml6egHnbHneYwoMZ+fV3bu7U+L6zr8DBJgNhCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:01.053273Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e20a5be88b835e293a93b01505dd0a17874089b1bcb380c61a5fc6fc6d760485","sha256:c4afb5477ddf1a0b0424801bb5f8e2d187a4e8faeee361f0d15f0a9b42acbb54"],"state_sha256":"f4835768fd376ac95668eb766c0efad154a0a519fb2924ebd774a2b91ac35fa1"}