{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BXE7LCZHTW5OUSGSENCU7Q2VKG","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":"f4ed7d596833c23ef835d8f1984c359dd0caa2ac6cbe328d56a58bd8b0e96c5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-13T02:45:30Z","title_canon_sha256":"d3ebc8e1f5b11fcd2deb80dd7852414c69b2ee3bbe0a13c7edd516b030a39b9d"},"schema_version":"1.0","source":{"id":"1309.3350","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.3350","created_at":"2026-05-18T01:47:42Z"},{"alias_kind":"arxiv_version","alias_value":"1309.3350v1","created_at":"2026-05-18T01:47:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.3350","created_at":"2026-05-18T01:47:42Z"},{"alias_kind":"pith_short_12","alias_value":"BXE7LCZHTW5O","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BXE7LCZHTW5OUSGS","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BXE7LCZH","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:947a47397a2028f148cb833913fa453b4229a84d8d41d74d5c1ff86613f95546","target":"graph","created_at":"2026-05-18T01:47:42Z","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":"The correlation between 21cm fluctuations and galaxies is sensitive to the astrophysical properties of the galaxies that drove reionization. Thus, detailed measurements of the cross-power spectrum and its evolution could provide a powerful measurement both of the properties of early galaxies and the process of reionization. In this paper, we study the evolution of the cross-power spectrum between 21cm emission and galaxies using a model which combines the hierarchical galaxy formation model GALFORM implemented within the Millennium-II dark matter simulation, with a semi-numerical scheme to des","authors_text":"C. G. Lacey, Han-Seek Kim, Jaehong Park, J. Stuart B. Wyithe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-13T02:45:30Z","title":"The cross-power spectrum between 21cm emission and galaxies in hierarchical galaxy formation models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.3350","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:cf105d91ef33f99df3b658f97ecfcd721871db6f87b8aa3767ba8b9e841fced5","target":"record","created_at":"2026-05-18T01:47:42Z","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":"f4ed7d596833c23ef835d8f1984c359dd0caa2ac6cbe328d56a58bd8b0e96c5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-13T02:45:30Z","title_canon_sha256":"d3ebc8e1f5b11fcd2deb80dd7852414c69b2ee3bbe0a13c7edd516b030a39b9d"},"schema_version":"1.0","source":{"id":"1309.3350","kind":"arxiv","version":1}},"canonical_sha256":"0dc9f58b279dbaea48d223454fc355518126508b701314e35a94338985b24302","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0dc9f58b279dbaea48d223454fc355518126508b701314e35a94338985b24302","first_computed_at":"2026-05-18T01:47:42.309011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:42.309011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zk4ggSf2IQuzgOW9rESVkMcbWsstXg7TXLVD3/qmTNQgQ7O8c/IRbg6QTZ39O9rktsOF0K2mq2OUyPmNPFh9Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:42.309666Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.3350","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf105d91ef33f99df3b658f97ecfcd721871db6f87b8aa3767ba8b9e841fced5","sha256:947a47397a2028f148cb833913fa453b4229a84d8d41d74d5c1ff86613f95546"],"state_sha256":"1834dcf7dd8cf51754f8cf47a6bfaddfbf7a8bbef0aaa37023d395a7cae29340"}