{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KUSPDWMRSYHJKRWDXMWM5UHV3P","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":"214bb3a6e04461f2fd2eab6030082dda74add6bfb3732be6ecb25b4254caddab","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-27T10:01:37Z","title_canon_sha256":"4d8e9f60e98a71f9b60e51acad2a4071abc92c25623f8f9f4750775994886451"},"schema_version":"1.0","source":{"id":"0903.4758","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.4758","created_at":"2026-05-18T02:14:19Z"},{"alias_kind":"arxiv_version","alias_value":"0903.4758v1","created_at":"2026-05-18T02:14:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.4758","created_at":"2026-05-18T02:14:19Z"},{"alias_kind":"pith_short_12","alias_value":"KUSPDWMRSYHJ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KUSPDWMRSYHJKRWD","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KUSPDWMR","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:636ea522d525077c0531e6bed7636331944de53c80e97bfd67804f624aa26735","target":"graph","created_at":"2026-05-18T02:14:19Z","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 spherical, non-rotating, isotropic models of early-type galaxies with stellar and dark-matter components both described by deprojected Sersic density profiles, and prove that they represent physically admissible stable systems. Using empirical correlations and recent results of N-body simulations, all the free parameters of the models are expressed as functions of one single quantity: the total (B-band) luminosity of the stellar component.\n  We analyze how to perform discrete N-body realizations of Sersic models. To this end, an optimal smoothing length is derived, defined as the so","authors_text":"F. La Barbera, G. Coppola, M. Capaccioli","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-27T10:01:37Z","title":"Sersic galaxy with Sersic halo models of early-type galaxies: a tool for N-body simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.4758","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":"sha256:84b3a6d8023b1eebf172342b9d918daf379b161ad8b2cbd81188ddba6e977612","target":"record","created_at":"2026-05-18T02:14:19Z","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":"214bb3a6e04461f2fd2eab6030082dda74add6bfb3732be6ecb25b4254caddab","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-27T10:01:37Z","title_canon_sha256":"4d8e9f60e98a71f9b60e51acad2a4071abc92c25623f8f9f4750775994886451"},"schema_version":"1.0","source":{"id":"0903.4758","kind":"arxiv","version":1}},"canonical_sha256":"5524f1d991960e9546c3bb2cced0f5dbc6a00950dfa748bfb7da97d5ce76ee6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5524f1d991960e9546c3bb2cced0f5dbc6a00950dfa748bfb7da97d5ce76ee6d","first_computed_at":"2026-05-18T02:14:19.135715Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:19.135715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I/2RuIzuFVnZI3MxH1FL/KBOr04TXxk4qnQGi4nsS0Q+1z72gomZkKMwghAC364GlHAXwdKjNtamGe+nE3rQDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:19.136515Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.4758","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84b3a6d8023b1eebf172342b9d918daf379b161ad8b2cbd81188ddba6e977612","sha256:636ea522d525077c0531e6bed7636331944de53c80e97bfd67804f624aa26735"],"state_sha256":"70a1cd5eacf46cf26f29cfb6de35dfa096a34298aa7ab0152d284afb9baf6c51"}