{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DOCJ25UGYI6EFGKQGMMDKHN2KF","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":"43399a867a74df013db1e251b0d74e163ce8c5eff4931d4906b40890b74b81e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:00:15Z","title_canon_sha256":"6615bca399c6d5da6281a7ee934a750dcc0424395780724a11dcf96b6a303529"},"schema_version":"1.0","source":{"id":"1403.5561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5561","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5561v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5561","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"DOCJ25UGYI6E","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DOCJ25UGYI6EFGKQ","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DOCJ25UG","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:bc007bb3e352b3a571ac539d868a27fc137cb3f6ece24da8f8ced15166d4da3a","target":"graph","created_at":"2026-05-18T01:43:52Z","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 individual star formation histories of bulges and discs of lenticular (S0) galaxies can provide information on the processes involved in the quenching of their star formation and subsequent transformation from spirals. In order to study this transformation in dense environments, we have decomposed long-slit spectroscopic observations of a sample of 21 S0s from the Virgo Cluster to produce one-dimensional spectra representing purely the bulge and disc light for each galaxy. Analysis of the Lick indices within these spectra reveals that the bulges contain consistently younger and more metal-","authors_text":"Alfonso Aragon-Salamanca, Evelyn J. Johnston, Michael R. Merrifield","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:00:15Z","title":"The Origin of S0s in Clusters: evidence from the bulge and disc star formation histories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5561","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":"sha256:23986e3908572eacaa2598183e2969c5cd4988395b6fba9897359cdd5482ec64","target":"record","created_at":"2026-05-18T01:43:52Z","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":"43399a867a74df013db1e251b0d74e163ce8c5eff4931d4906b40890b74b81e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:00:15Z","title_canon_sha256":"6615bca399c6d5da6281a7ee934a750dcc0424395780724a11dcf96b6a303529"},"schema_version":"1.0","source":{"id":"1403.5561","kind":"arxiv","version":1}},"canonical_sha256":"1b849d7686c23c4299503318351dba516139b2a08156478a15077628177495ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b849d7686c23c4299503318351dba516139b2a08156478a15077628177495ca","first_computed_at":"2026-05-18T01:43:52.417413Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:52.417413Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"piqVTQh2GG7QYdJjNQsjJyRM5Z77fYEH5Vc9/hw7+N2gcW/PDhkPxwTh8WENATDIdVBT0ijiA+xc2qGz17e+Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:52.418613Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23986e3908572eacaa2598183e2969c5cd4988395b6fba9897359cdd5482ec64","sha256:bc007bb3e352b3a571ac539d868a27fc137cb3f6ece24da8f8ced15166d4da3a"],"state_sha256":"faadbfe61a7af37bfb2957104f7e138ae5bb081ebfc2863f7c66aabb3e9cad4a"}