{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:6IBKZUHEI6FY32VVGL7L26VBKF","short_pith_number":"pith:6IBKZUHE","schema_version":"1.0","canonical_sha256":"f202acd0e4478b8deab532febd7aa1516eda972f725430672de1332cffee9e5b","source":{"kind":"arxiv","id":"1305.0882","version":1},"attestation_state":"computed","paper":{"title":"The importance of major mergers in the build up of stellar mass in brightest cluster galaxies at z=1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. E. Bauer, A. J. Faloon, A. Muzzin, A. Noble, A. Rettura, C. Lidman, D. Gilbank, E. Ellingson, G. Iacobuta, G. Wilson, H. K. C. Yee, J. Meyers, J. Nantais, L. Delaye, L. F. Barrientos, M. Huertas-Company, P. Cerulo, P. Rosati, R. Demarco, R. Sanchez-Janssen, R. Yan, S. Mei, T. M. A. Webb, V. Strazzullo, W. J. Couch","submitted_at":"2013-05-04T06:38:26Z","abstract_excerpt":"Recent independent results from numerical simulations and observations have shown that brightest cluster galaxies (BCGs) have increased their stellar mass by a factor of almost two between z~0.9 and z~0.2. The numerical simulations further suggest that more than half this mass is accreted through major mergers. Using a sample of 18 distant galaxy clusters with over 600 spectroscopically confirmed cluster members between them, we search for observational evidence that major mergers do play a significant role. We find a major merger rate of 0.38 +/- 0.14 mergers per Gyr at z~1. While the uncerta"},"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":"1305.0882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-04T06:38:26Z","cross_cats_sorted":[],"title_canon_sha256":"43323fd95042424dfde839929af7bdfe218971c9018dabbde7e37e030b06a7c6","abstract_canon_sha256":"8ed17c1a275ce280fe164de932ab9e4c47a8872211476a0c22bffcacff6b6cca"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:12.345454Z","signature_b64":"2BeQ/fU2OkaQchlUbdmYEGeZcNvWRGMLVaVCHZT8jV5TtJJi2tUGFDdlDXr8+CoW0KpBR2V4kW+yOTkK2lgXBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f202acd0e4478b8deab532febd7aa1516eda972f725430672de1332cffee9e5b","last_reissued_at":"2026-05-18T01:50:12.344816Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:12.344816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The importance of major mergers in the build up of stellar mass in brightest cluster galaxies at z=1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. E. Bauer, A. J. Faloon, A. Muzzin, A. Noble, A. Rettura, C. Lidman, D. Gilbank, E. Ellingson, G. Iacobuta, G. Wilson, H. K. C. Yee, J. Meyers, J. Nantais, L. Delaye, L. F. Barrientos, M. Huertas-Company, P. Cerulo, P. Rosati, R. Demarco, R. Sanchez-Janssen, R. Yan, S. Mei, T. M. A. Webb, V. Strazzullo, W. J. Couch","submitted_at":"2013-05-04T06:38:26Z","abstract_excerpt":"Recent independent results from numerical simulations and observations have shown that brightest cluster galaxies (BCGs) have increased their stellar mass by a factor of almost two between z~0.9 and z~0.2. The numerical simulations further suggest that more than half this mass is accreted through major mergers. Using a sample of 18 distant galaxy clusters with over 600 spectroscopically confirmed cluster members between them, we search for observational evidence that major mergers do play a significant role. We find a major merger rate of 0.38 +/- 0.14 mergers per Gyr at z~1. While the uncerta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0882","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":"1305.0882","created_at":"2026-05-18T01:50:12.344908+00:00"},{"alias_kind":"arxiv_version","alias_value":"1305.0882v1","created_at":"2026-05-18T01:50:12.344908+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0882","created_at":"2026-05-18T01:50:12.344908+00:00"},{"alias_kind":"pith_short_12","alias_value":"6IBKZUHEI6FY","created_at":"2026-05-18T12:27:36.564083+00:00"},{"alias_kind":"pith_short_16","alias_value":"6IBKZUHEI6FY32VV","created_at":"2026-05-18T12:27:36.564083+00:00"},{"alias_kind":"pith_short_8","alias_value":"6IBKZUHE","created_at":"2026-05-18T12:27:36.564083+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/6IBKZUHEI6FY32VVGL7L26VBKF","json":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF.json","graph_json":"https://pith.science/api/pith-number/6IBKZUHEI6FY32VVGL7L26VBKF/graph.json","events_json":"https://pith.science/api/pith-number/6IBKZUHEI6FY32VVGL7L26VBKF/events.json","paper":"https://pith.science/paper/6IBKZUHE"},"agent_actions":{"view_html":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF","download_json":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF.json","view_paper":"https://pith.science/paper/6IBKZUHE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1305.0882&json=true","fetch_graph":"https://pith.science/api/pith-number/6IBKZUHEI6FY32VVGL7L26VBKF/graph.json","fetch_events":"https://pith.science/api/pith-number/6IBKZUHEI6FY32VVGL7L26VBKF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF/action/storage_attestation","attest_author":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF/action/author_attestation","sign_citation":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF/action/citation_signature","submit_replication":"https://pith.science/pith/6IBKZUHEI6FY32VVGL7L26VBKF/action/replication_record"}},"created_at":"2026-05-18T01:50:12.344908+00:00","updated_at":"2026-05-18T01:50:12.344908+00:00"}