{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:SCMOEMWRMO24YOOOR55APSXOP6","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":"5ffba2795198d4522ff6479a7ddcaec984139416b057e2039b4f11a82c329890","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-02T11:06:20Z","title_canon_sha256":"a5ab316d39879d2f09633df18729c6b576666ce9279033b5eb4922217ebf733e"},"schema_version":"1.0","source":{"id":"astro-ph/0602038","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602038","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602038v2","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602038","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"SCMOEMWRMO24","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"SCMOEMWRMO24YOOO","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"SCMOEMWR","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:747fb8d07f5be4bfc0fb161a778f1cc76a3958cd671b0351c4feb63502a756be","target":"graph","created_at":"2026-05-18T04:29:05Z","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":"We calculate the projected two point correlation function for samples of luminous and massive galaxies in the COMBO-17 photometric redshift survey, focusing particularly on the amplitude of the correlation function at small projected radii and exploring the constraints such measurements can place on the galaxy merger rate. For nearly volume-limited samples with 0.4<z<0.8, we find that 4+/-1% of luminous M_B<-20 galaxies are in close physical pairs (with real space separation of <30 proper kpc). The corresponding fraction for massive galaxies with M_*>2.5e10 M_sun is 5+/-1%. Incorporating close","authors_text":"Andrea Borch, Christian Wolf, Eric F. Bell, Klaus Meisenheimer, Rachel S. Somerville, Stefanie Phleps","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-02-02T11:06:20Z","title":"The merger rate of massive galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602038","kind":"arxiv","version":2},"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":"sha256:0052ce20bae34eda4727643e15091717a69cdc235e43d418a8e29ae451a2b08f","target":"record","created_at":"2026-05-18T04:29:05Z","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":"5ffba2795198d4522ff6479a7ddcaec984139416b057e2039b4f11a82c329890","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-02T11:06:20Z","title_canon_sha256":"a5ab316d39879d2f09633df18729c6b576666ce9279033b5eb4922217ebf733e"},"schema_version":"1.0","source":{"id":"astro-ph/0602038","kind":"arxiv","version":2}},"canonical_sha256":"9098e232d163b5cc39ce8f7a07caee7f8b121f2ef9c5689d71d1b83b24f93c81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9098e232d163b5cc39ce8f7a07caee7f8b121f2ef9c5689d71d1b83b24f93c81","first_computed_at":"2026-05-18T04:29:05.033483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:05.033483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KcGcqOUgus1OIQiSLaNC7Vwfa38XWdoe3JBLfsULNfhl6GHD3ml/bVuUx4nhZhSPXhUbF0dgjqa1kZBVqviRAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:05.033863Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0602038","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0052ce20bae34eda4727643e15091717a69cdc235e43d418a8e29ae451a2b08f","sha256:747fb8d07f5be4bfc0fb161a778f1cc76a3958cd671b0351c4feb63502a756be"],"state_sha256":"6e1552c47e5fa0bb55370fea5adaad35e9ee6ac651cd02959b9ff702281804ab"}