{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:VG4ANPCHS4HW4MK6MOGHNMVHA4","short_pith_number":"pith:VG4ANPCH","schema_version":"1.0","canonical_sha256":"a9b806bc47970f6e315e638c76b2a707164ddad43e513b4bcc1fccb7102c7f0e","source":{"kind":"arxiv","id":"1712.01482","version":1},"attestation_state":"computed","paper":{"title":"\"Red\" but Not \"Dead\": Actively Star-forming Brightest Cluster Galaxies at Low Redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Haojing Yan, James Runge","submitted_at":"2017-12-05T05:23:41Z","abstract_excerpt":"Brightest Cluster Galaxies (BCGs) are believed to have assembled most of their stars early in time and, therefore, should be passively evolving at low redshifts and appear \"red-and-dead.\" However, there have been reports that a minority of low-redshift BCGs still have ongoing star formation rates (SFR) of a few to even $\\sim$100 $M_\\odot/yr$. Such BCGs are found in \"cool-core\" (\"CC\") clusters, and their star formation is thought to be fueled by \"cooling flow.\" To further investigate the implications of low-redshift, star-forming BCGs, we perform a systematic search using the 22$\\mu$m data (\"W4"},"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":"1712.01482","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-12-05T05:23:41Z","cross_cats_sorted":[],"title_canon_sha256":"eb308bd1f8e72f999edb49b264c1cb8642ca4b604664a2d4bbb62c18dacb5332","abstract_canon_sha256":"cd8dadb7b11e86371ed0b3bf0721cc43f8967af9dfca6952c52b23096238ed8d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:15.041212Z","signature_b64":"T9/9+DE8EBJeBNdPYcq7O46NeUgeR9kO0jhEPx5m4xlpttXIr17q21W4r83tZzNrGXEJV2ahlLqYI3P72ISHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9b806bc47970f6e315e638c76b2a707164ddad43e513b4bcc1fccb7102c7f0e","last_reissued_at":"2026-05-18T00:24:15.040577Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:15.040577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"\"Red\" but Not \"Dead\": Actively Star-forming Brightest Cluster Galaxies at Low Redshifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Haojing Yan, James Runge","submitted_at":"2017-12-05T05:23:41Z","abstract_excerpt":"Brightest Cluster Galaxies (BCGs) are believed to have assembled most of their stars early in time and, therefore, should be passively evolving at low redshifts and appear \"red-and-dead.\" However, there have been reports that a minority of low-redshift BCGs still have ongoing star formation rates (SFR) of a few to even $\\sim$100 $M_\\odot/yr$. Such BCGs are found in \"cool-core\" (\"CC\") clusters, and their star formation is thought to be fueled by \"cooling flow.\" To further investigate the implications of low-redshift, star-forming BCGs, we perform a systematic search using the 22$\\mu$m data (\"W4"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01482","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":"1712.01482","created_at":"2026-05-18T00:24:15.040672+00:00"},{"alias_kind":"arxiv_version","alias_value":"1712.01482v1","created_at":"2026-05-18T00:24:15.040672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01482","created_at":"2026-05-18T00:24:15.040672+00:00"},{"alias_kind":"pith_short_12","alias_value":"VG4ANPCHS4HW","created_at":"2026-05-18T12:31:49.984773+00:00"},{"alias_kind":"pith_short_16","alias_value":"VG4ANPCHS4HW4MK6","created_at":"2026-05-18T12:31:49.984773+00:00"},{"alias_kind":"pith_short_8","alias_value":"VG4ANPCH","created_at":"2026-05-18T12:31:49.984773+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/VG4ANPCHS4HW4MK6MOGHNMVHA4","json":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4.json","graph_json":"https://pith.science/api/pith-number/VG4ANPCHS4HW4MK6MOGHNMVHA4/graph.json","events_json":"https://pith.science/api/pith-number/VG4ANPCHS4HW4MK6MOGHNMVHA4/events.json","paper":"https://pith.science/paper/VG4ANPCH"},"agent_actions":{"view_html":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4","download_json":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4.json","view_paper":"https://pith.science/paper/VG4ANPCH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1712.01482&json=true","fetch_graph":"https://pith.science/api/pith-number/VG4ANPCHS4HW4MK6MOGHNMVHA4/graph.json","fetch_events":"https://pith.science/api/pith-number/VG4ANPCHS4HW4MK6MOGHNMVHA4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4/action/storage_attestation","attest_author":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4/action/author_attestation","sign_citation":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4/action/citation_signature","submit_replication":"https://pith.science/pith/VG4ANPCHS4HW4MK6MOGHNMVHA4/action/replication_record"}},"created_at":"2026-05-18T00:24:15.040672+00:00","updated_at":"2026-05-18T00:24:15.040672+00:00"}