{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:CJQ7DX2PAHNZIYFJ3EONTMZSGS","short_pith_number":"pith:CJQ7DX2P","schema_version":"1.0","canonical_sha256":"1261f1df4f01db9460a9d91cd9b332349cf7872fbdd7d79a277d020da05c8725","source":{"kind":"arxiv","id":"1211.6115","version":1},"attestation_state":"computed","paper":{"title":"Towards a physical picture of star-formation quenching: the photometric properties of recently-quenched galaxies in the Sloan Digital Sky Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David R. Patton (Trent), J. Trevor Mendel (MPE), Luc Simard (HIA), Sara L. Ellison (UVIC)","submitted_at":"2012-11-26T21:00:03Z","abstract_excerpt":"We select a sample of young passive galaxies from the Sloan Digital Sky Survey Data Release 7 in order to study the processes that quench star formation in the local universe. Quenched galaxies are identified based on the contribution of A-type stars to their observed (central) spectra and relative lack of ongoing star formation; we find that such systems account for roughly 2.5 per cent of all galaxies with log M_sun >= 9.5, and have a space density of ~2.2x10^-4 Mpc^-3. We show that quenched galaxies span a range of morphologies, but that visual classifications suggest they are predominantly"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1211.6115","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-26T21:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"ce47cf2a9d3416c5e73856d1c0d295238788a603bc0487a3d2daf1d5f8c8b2ab","abstract_canon_sha256":"9cb32e0f32433089061ae9fdc59fdf242516735cea7e5431bee130ca4782aa8b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:54.760311Z","signature_b64":"kHgnec+nNLDCiov1i1dLy5eh2CbGIgW8AtP9BVGUz+zg3TQAgApim/lI33fq/lNbfOts4GxuFS7CzNCiCr/rBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1261f1df4f01db9460a9d91cd9b332349cf7872fbdd7d79a277d020da05c8725","last_reissued_at":"2026-05-18T01:52:54.759691Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:54.759691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Towards a physical picture of star-formation quenching: the photometric properties of recently-quenched galaxies in the Sloan Digital Sky Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David R. Patton (Trent), J. Trevor Mendel (MPE), Luc Simard (HIA), Sara L. Ellison (UVIC)","submitted_at":"2012-11-26T21:00:03Z","abstract_excerpt":"We select a sample of young passive galaxies from the Sloan Digital Sky Survey Data Release 7 in order to study the processes that quench star formation in the local universe. Quenched galaxies are identified based on the contribution of A-type stars to their observed (central) spectra and relative lack of ongoing star formation; we find that such systems account for roughly 2.5 per cent of all galaxies with log M_sun >= 9.5, and have a space density of ~2.2x10^-4 Mpc^-3. We show that quenched galaxies span a range of morphologies, but that visual classifications suggest they are predominantly"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6115","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1211.6115","created_at":"2026-05-18T01:52:54.759794+00:00"},{"alias_kind":"arxiv_version","alias_value":"1211.6115v1","created_at":"2026-05-18T01:52:54.759794+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6115","created_at":"2026-05-18T01:52:54.759794+00:00"},{"alias_kind":"pith_short_12","alias_value":"CJQ7DX2PAHNZ","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_16","alias_value":"CJQ7DX2PAHNZIYFJ","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_8","alias_value":"CJQ7DX2P","created_at":"2026-05-18T12:27:01.376967+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS","json":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS.json","graph_json":"https://pith.science/api/pith-number/CJQ7DX2PAHNZIYFJ3EONTMZSGS/graph.json","events_json":"https://pith.science/api/pith-number/CJQ7DX2PAHNZIYFJ3EONTMZSGS/events.json","paper":"https://pith.science/paper/CJQ7DX2P"},"agent_actions":{"view_html":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS","download_json":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS.json","view_paper":"https://pith.science/paper/CJQ7DX2P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1211.6115&json=true","fetch_graph":"https://pith.science/api/pith-number/CJQ7DX2PAHNZIYFJ3EONTMZSGS/graph.json","fetch_events":"https://pith.science/api/pith-number/CJQ7DX2PAHNZIYFJ3EONTMZSGS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS/action/storage_attestation","attest_author":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS/action/author_attestation","sign_citation":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS/action/citation_signature","submit_replication":"https://pith.science/pith/CJQ7DX2PAHNZIYFJ3EONTMZSGS/action/replication_record"}},"created_at":"2026-05-18T01:52:54.759794+00:00","updated_at":"2026-05-18T01:52:54.759794+00:00"}