{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JSG6KZJR5IP7P4ZNSXDFSGT3GK","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":"bae41d83dba8eaa57803ff701610e8ace8f733b7921f6b6d38d6b273d76bee04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T20:54:23Z","title_canon_sha256":"6967a571093676aa9e2bfe1d1a97059e1486a32bd0ad0d833aaa4e89cda1c5ed"},"schema_version":"1.0","source":{"id":"1109.4169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4169","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4169v1","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4169","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"pith_short_12","alias_value":"JSG6KZJR5IP7","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JSG6KZJR5IP7P4ZN","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JSG6KZJR","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:0384e438659e49b1d6e7bcdf53993283fcb4c85db343b2be6b95f3c4fd22024c","target":"graph","created_at":"2026-05-18T02:00:29Z","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 use a large dark matter simulation of a LambdaCDM model to investigate the clustering and environmental dependence of the number of substructures in a halo. Focusing on redshift z=1, we find that the halo occupation distribution is sensitive at the tens of percent level to the surrounding density and to a lesser extent to asymmetry of the surrounding density distribution. We compute the autocorrelation function of halos as a function of occupation, building on the finding of Wechsler et al. (2006) and Gao and White (2007) that halos (at fixed mass) with more substructure are more clustered.","authors_text":"Anirban Jana (PSC), Jeffrey Gardner (UW), Nishikanta Khandai (CMU), Rupert Croft (CMU), Tiziana Di Matteo (CMU), Volker Springel (HITS)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T20:54:23Z","title":"Dark matter halo occupation: environment and clustering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4169","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":"sha256:89bdcd174beba8be78f093ca25c4538c8e522b01cea20cfc8a367408b10c9eee","target":"record","created_at":"2026-05-18T02:00:29Z","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":"bae41d83dba8eaa57803ff701610e8ace8f733b7921f6b6d38d6b273d76bee04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T20:54:23Z","title_canon_sha256":"6967a571093676aa9e2bfe1d1a97059e1486a32bd0ad0d833aaa4e89cda1c5ed"},"schema_version":"1.0","source":{"id":"1109.4169","kind":"arxiv","version":1}},"canonical_sha256":"4c8de56531ea1ff7f32d95c6591a7b32a5c2f04d03d7bd4da8ad2d29fb3a856e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c8de56531ea1ff7f32d95c6591a7b32a5c2f04d03d7bd4da8ad2d29fb3a856e","first_computed_at":"2026-05-18T02:00:29.020808Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:29.020808Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"scjyHmoSlVmAaK16WZCsUy8sj5jroSwn/Ob7irKo57rK1VSydr4JLyrWqPlsLQm1oufVU4TYOLwk+i/UhYJBAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:29.021368Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89bdcd174beba8be78f093ca25c4538c8e522b01cea20cfc8a367408b10c9eee","sha256:0384e438659e49b1d6e7bcdf53993283fcb4c85db343b2be6b95f3c4fd22024c"],"state_sha256":"e762f81078d1cefce2fd9311e71388787445cd09e33654e36ea4862044939085"}