{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:CCKP4EAHBGNJNBHILNE6XGE2XU","short_pith_number":"pith:CCKP4EAH","schema_version":"1.0","canonical_sha256":"1094fe1007099a9684e85b49eb989abd24d2085c6b49e0c8647f8f0ba6f0755c","source":{"kind":"arxiv","id":"0809.2428","version":2},"attestation_state":"computed","paper":{"title":"Detection and extraction of signals from the epoch of reionization using higher order one-point statistics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Stockholm Observatory, (3) Institute for Theoretical Physics, 4), (4) ASTRON, (5) MPA, (6) Leiden Observatory), A. G. de Bruyn (1, Andreas H. Pawlik (6), Benedetta Ciardi (5), Garching, Garrelt Mellema (2), Geraint J. A. Harker (1), Gianni Bernardi (1), Ilian T. Iliev (3), Joop Schaye (6), Leon V. E. Koopmans (1), Michiel A. Brentjens (4), Panagiotis Labropoulos (1), Rajat M. Thomas (1), Saleem Zaroubi (1), Sarod Yatawatta (1) ((1) Kapteyn Institute, Vibor Jelic (1), V. N. Pandey (1), Zurich","submitted_at":"2008-09-15T00:32:24Z","abstract_excerpt":"Detecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very challenging to extract the cosmological signal (CS) from foregrounds and noise which are orders of magnitude larger. Fortunately, the signal has some characteristics which differentiate it from the foregrounds and noise, and we suggest that using the correct statistics may tease out signatures of reionization. We generate mock datacubes simulating the output of the Low Frequency Array (LOFAR) EoR experiment. These cubes "},"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":"0809.2428","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-15T00:32:24Z","cross_cats_sorted":[],"title_canon_sha256":"cbc61cc83bce6912529f11e64e748c37d76a677b99af0783b274042267ed7555","abstract_canon_sha256":"e8987544faa015977909a26ad2bbf9e6aa62e9cef416ae20601600bc4bc4fc2a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:38:50.347253Z","signature_b64":"uo48FhAbh1d84osWABlXEbnMf6oFB7sOrApnbEYxLj1PcTuc/Vmb7wKRmb4I0v5WWY9cqhukzNgGhDMyj02VBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1094fe1007099a9684e85b49eb989abd24d2085c6b49e0c8647f8f0ba6f0755c","last_reissued_at":"2026-07-04T15:38:50.346824Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:38:50.346824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detection and extraction of signals from the epoch of reionization using higher order one-point statistics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Stockholm Observatory, (3) Institute for Theoretical Physics, 4), (4) ASTRON, (5) MPA, (6) Leiden Observatory), A. G. de Bruyn (1, Andreas H. Pawlik (6), Benedetta Ciardi (5), Garching, Garrelt Mellema (2), Geraint J. A. Harker (1), Gianni Bernardi (1), Ilian T. Iliev (3), Joop Schaye (6), Leon V. E. Koopmans (1), Michiel A. Brentjens (4), Panagiotis Labropoulos (1), Rajat M. Thomas (1), Saleem Zaroubi (1), Sarod Yatawatta (1) ((1) Kapteyn Institute, Vibor Jelic (1), V. N. Pandey (1), Zurich","submitted_at":"2008-09-15T00:32:24Z","abstract_excerpt":"Detecting redshifted 21cm emission from neutral hydrogen in the early Universe promises to give direct constraints on the epoch of reionization (EoR). It will, though, be very challenging to extract the cosmological signal (CS) from foregrounds and noise which are orders of magnitude larger. Fortunately, the signal has some characteristics which differentiate it from the foregrounds and noise, and we suggest that using the correct statistics may tease out signatures of reionization. We generate mock datacubes simulating the output of the Low Frequency Array (LOFAR) EoR experiment. These cubes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.2428","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0809.2428/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"0809.2428","created_at":"2026-07-04T15:38:50.346876+00:00"},{"alias_kind":"arxiv_version","alias_value":"0809.2428v2","created_at":"2026-07-04T15:38:50.346876+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.2428","created_at":"2026-07-04T15:38:50.346876+00:00"},{"alias_kind":"pith_short_12","alias_value":"CCKP4EAHBGNJ","created_at":"2026-07-04T15:38:50.346876+00:00"},{"alias_kind":"pith_short_16","alias_value":"CCKP4EAHBGNJNBHI","created_at":"2026-07-04T15:38:50.346876+00:00"},{"alias_kind":"pith_short_8","alias_value":"CCKP4EAH","created_at":"2026-07-04T15:38:50.346876+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/CCKP4EAHBGNJNBHILNE6XGE2XU","json":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU.json","graph_json":"https://pith.science/api/pith-number/CCKP4EAHBGNJNBHILNE6XGE2XU/graph.json","events_json":"https://pith.science/api/pith-number/CCKP4EAHBGNJNBHILNE6XGE2XU/events.json","paper":"https://pith.science/paper/CCKP4EAH"},"agent_actions":{"view_html":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU","download_json":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU.json","view_paper":"https://pith.science/paper/CCKP4EAH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0809.2428&json=true","fetch_graph":"https://pith.science/api/pith-number/CCKP4EAHBGNJNBHILNE6XGE2XU/graph.json","fetch_events":"https://pith.science/api/pith-number/CCKP4EAHBGNJNBHILNE6XGE2XU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU/action/storage_attestation","attest_author":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU/action/author_attestation","sign_citation":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU/action/citation_signature","submit_replication":"https://pith.science/pith/CCKP4EAHBGNJNBHILNE6XGE2XU/action/replication_record"}},"created_at":"2026-07-04T15:38:50.346876+00:00","updated_at":"2026-07-04T15:38:50.346876+00:00"}