{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TPJFO6E3LPPS25GPZXXUDK3MN6","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":"7277ef92de33500dde07be1e8cadedbf60959a83d5dbf2baaa19c9610960dcf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-19T22:55:41Z","title_canon_sha256":"d4e8e9e8285992fa14ae2272926428a36dc6975852c754b885acf81f0706a2b3"},"schema_version":"1.0","source":{"id":"1203.4284","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.4284","created_at":"2026-05-18T01:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1203.4284v1","created_at":"2026-05-18T01:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.4284","created_at":"2026-05-18T01:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"TPJFO6E3LPPS","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TPJFO6E3LPPS25GP","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TPJFO6E3","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:2d6ac8d921901cbe2b11fcd7d9e2f34d8c768b730bff179a42e52411951ba7e6","target":"graph","created_at":"2026-05-18T01:58:05Z","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 radial profiles of the Hb, Mg, and Fe line-strength indices are presented for a sample of eight spiral galaxies with a low surface-brightness stellar disc and a bulge. The correlations between the central values of the line-strength indices and velocity dispersion are consistent to those known for early-type galaxies and bulges of high surface-brightness galaxies. The age, metallicity, and alpha/Fe enhancement of the stellar populations in the bulge-dominated region are obtained using stellar population models with variable element abundance ratios. Almost all the sample bulges are charact","authors_text":"2), (2) INAF--Osservatorio Astronomico di Padova, (3) European Southern Observatory, (4) Instituto Astrofisfisico de Canarias), A. Pizzella (1, E. Dalla Bont\\`a (1, E. M. Corsini (1, J. M\\'endez-Abreu (4), L. Coccato (3), L. Morelli (1, M. Cesetti (1) ((1) Dipartimento di Fisica e Astronomia, Universit\\`a di Padova","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-19T22:55:41Z","title":"Structure and dynamics of galaxies with a low surface-brightness disc - II. Stellar populations of bulges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.4284","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:cd3fecc3de9d2805124f57562597088150114dd415fe0c146c8752bb3dbe5b90","target":"record","created_at":"2026-05-18T01:58:05Z","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":"7277ef92de33500dde07be1e8cadedbf60959a83d5dbf2baaa19c9610960dcf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-19T22:55:41Z","title_canon_sha256":"d4e8e9e8285992fa14ae2272926428a36dc6975852c754b885acf81f0706a2b3"},"schema_version":"1.0","source":{"id":"1203.4284","kind":"arxiv","version":1}},"canonical_sha256":"9bd257789b5bdf2d74cfcdef41ab6c6f90aac90b24a3d299f9e20db2a5c6965b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bd257789b5bdf2d74cfcdef41ab6c6f90aac90b24a3d299f9e20db2a5c6965b","first_computed_at":"2026-05-18T01:58:05.796487Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:05.796487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WpFCs08YCSB8vhxi+pDRE1cV6E6Xsh5gjBV8q9j5T2lAD2gsmuGyvGmIsKZNtSR/6l4sBeIh9D3Lx4W2f0IuCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:05.797063Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.4284","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd3fecc3de9d2805124f57562597088150114dd415fe0c146c8752bb3dbe5b90","sha256:2d6ac8d921901cbe2b11fcd7d9e2f34d8c768b730bff179a42e52411951ba7e6"],"state_sha256":"8d1bb9027349970379837739f0d77742f8ed0f7feccfe7177fd4c681f6868090"}