{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UWCFH7UMTLWZAAN6WLRFFJKO7Z","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":"e2f7f3610811dc9705e99e1fe899e45d2e954ff0cca02ead0f8382de646dc955","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-07T17:17:04Z","title_canon_sha256":"834169358da836f5da111eec9689f8cb28310748d12aa97c7e36e68fe3448b3b"},"schema_version":"1.0","source":{"id":"1806.02796","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02796","created_at":"2026-05-18T00:01:38Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02796v2","created_at":"2026-05-18T00:01:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02796","created_at":"2026-05-18T00:01:38Z"},{"alias_kind":"pith_short_12","alias_value":"UWCFH7UMTLWZ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UWCFH7UMTLWZAAN6","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UWCFH7UM","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:562a3234369d6164a4778e625a9de4855865ab0b023b5b187b4b0d1fda67ab8d","target":"graph","created_at":"2026-05-18T00:01:38Z","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 amplitude of redshifted 21 cm fluctuations during the Epoch of Reionization (EoR) is expected to show a distinctive \"rise and fall\" behavior with decreasing redshift as reionization proceeds. On large scales (k <~ 0.1 Mpc^{-1}) this can mostly be characterized by evolution in the product of the mean 21 cm brightness temperature and a bias factor, b_21(z). This quantity evolves in a distinctive way that can help in determining the average ionization history of the intergalactic medium (IGM) from upcoming 21 cm fluctuation data sets. Here we consider extracting <T_21> b_21(z) using a combina","authors_text":"Adam Lidz, Angus Beane","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-07T17:17:04Z","title":"Extracting bias using the cross-bispectrum: An EoR and 21 cm-[CII]-[CII] case study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02796","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:dca32d232a4e488e75a22485d94b9dfd924ec494e07b19fbaa242c0d53724520","target":"record","created_at":"2026-05-18T00:01:38Z","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":"e2f7f3610811dc9705e99e1fe899e45d2e954ff0cca02ead0f8382de646dc955","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-07T17:17:04Z","title_canon_sha256":"834169358da836f5da111eec9689f8cb28310748d12aa97c7e36e68fe3448b3b"},"schema_version":"1.0","source":{"id":"1806.02796","kind":"arxiv","version":2}},"canonical_sha256":"a58453fe8c9aed9001beb2e252a54efe40f67f9f32eb1e23e201e178d4ec522c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a58453fe8c9aed9001beb2e252a54efe40f67f9f32eb1e23e201e178d4ec522c","first_computed_at":"2026-05-18T00:01:38.232588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:38.232588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ENSEdtD1KIpr02XQfqFXPrGN6bJbHd6djPLE1Efk2ZbOxEjAIDoG1YLzcfvU9AMZGhlLJn3HGR5uY+rbGXmSDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:38.232999Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.02796","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dca32d232a4e488e75a22485d94b9dfd924ec494e07b19fbaa242c0d53724520","sha256:562a3234369d6164a4778e625a9de4855865ab0b023b5b187b4b0d1fda67ab8d"],"state_sha256":"0b80cfae638a7f7348931eb95848c3d15851efe9cc07ee90041d610f5498d133"}