{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:33U6GRCJN2MDOYNEQENYIFQMH6","short_pith_number":"pith:33U6GRCJ","schema_version":"1.0","canonical_sha256":"dee9e344496e983761a4811b84160c3f89a8c931120b7e1733ed60c9023f7076","source":{"kind":"arxiv","id":"2505.09097","version":1},"attestation_state":"computed","paper":{"title":"Limits on the 21 cm power spectrum at z=6.5-7.0 from MWA observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"A. Chokshi, A. Selvaraj, B. Hazelton, B. Pindor, C. D. Nunhokee, C. H. Jordan, C. M Trott, D. Jacobs, D. Null, E. Jong, E. Lilleskov, J. Bowman, J. C. Pober, J. Ducharme, J. H. Cook, J. L. B. Line, K. Elder, K. Takahashi, M. F. Morales, M. Kolopanis, N. Barry, Q. Guo, Q. Zheng, R. B. Wayth, R. L. Webster, R. Shi, S. J. Tingay, S. Yoshiura, T. Ito, T. Kunicki, W. Hidayat, Y. Qin","submitted_at":"2025-05-14T03:04:25Z","abstract_excerpt":"This paper presents the spherically-averaged 21 cm power spectrum derived from Epoch of Reionization (EoR) observations conducted with the Murchison Widefield Array (MWA). The analysis uses EoR0-field data, centered at (RA$=0h$, DEC$=-27^{\\circ}$), collected between 2013 and 2023. Building on the improved methodology described in Trott et al. 2020, we incorporate additional data quality control techniques introduced in Nunhokee et al. 2024. We report the lowest power level limits on the EoR power spectrum at redshifts $z=6.5$, $z=6.8$, and $z=7.0$. These power levels, measured in the East-West"},"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":"2505.09097","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-05-14T03:04:25Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"71b8b039f93a5e76f56b3fdb7cccbf059ad3025d07eb368a300ca998a32f8af0","abstract_canon_sha256":"2ff060fb65fbf26fe81c8344d01acc41b5745ca77a35bc83bbc508f80a5c36b7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:02:50.208064Z","signature_b64":"jf/xSxgHWY9NZL9xpUCrwUFU5NqUhSo8dHtFD1C4QsO0C14Mjs/VwyiAyucVymxDpj64r28u4Z+gEx4PqjtjBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dee9e344496e983761a4811b84160c3f89a8c931120b7e1733ed60c9023f7076","last_reissued_at":"2026-07-05T11:02:50.207579Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:02:50.207579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Limits on the 21 cm power spectrum at z=6.5-7.0 from MWA observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"A. Chokshi, A. Selvaraj, B. Hazelton, B. Pindor, C. D. Nunhokee, C. H. Jordan, C. M Trott, D. Jacobs, D. Null, E. Jong, E. Lilleskov, J. Bowman, J. C. Pober, J. Ducharme, J. H. Cook, J. L. B. Line, K. Elder, K. Takahashi, M. F. Morales, M. Kolopanis, N. Barry, Q. Guo, Q. Zheng, R. B. Wayth, R. L. Webster, R. Shi, S. J. Tingay, S. Yoshiura, T. Ito, T. Kunicki, W. Hidayat, Y. Qin","submitted_at":"2025-05-14T03:04:25Z","abstract_excerpt":"This paper presents the spherically-averaged 21 cm power spectrum derived from Epoch of Reionization (EoR) observations conducted with the Murchison Widefield Array (MWA). The analysis uses EoR0-field data, centered at (RA$=0h$, DEC$=-27^{\\circ}$), collected between 2013 and 2023. Building on the improved methodology described in Trott et al. 2020, we incorporate additional data quality control techniques introduced in Nunhokee et al. 2024. We report the lowest power level limits on the EoR power spectrum at redshifts $z=6.5$, $z=6.8$, and $z=7.0$. These power levels, measured in the East-West"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.09097","kind":"arxiv","version":1},"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/2505.09097/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":"2505.09097","created_at":"2026-07-05T11:02:50.207635+00:00"},{"alias_kind":"arxiv_version","alias_value":"2505.09097v1","created_at":"2026-07-05T11:02:50.207635+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.09097","created_at":"2026-07-05T11:02:50.207635+00:00"},{"alias_kind":"pith_short_12","alias_value":"33U6GRCJN2MD","created_at":"2026-07-05T11:02:50.207635+00:00"},{"alias_kind":"pith_short_16","alias_value":"33U6GRCJN2MDOYNE","created_at":"2026-07-05T11:02:50.207635+00:00"},{"alias_kind":"pith_short_8","alias_value":"33U6GRCJ","created_at":"2026-07-05T11:02:50.207635+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.00219","citing_title":"21cmEMUv3: a hybrid diffusion-LSTM emulator of 21cmFAST summary observables","ref_index":299,"is_internal_anchor":false},{"citing_arxiv_id":"2605.20518","citing_title":"Mapping Cosmological Signal Scales to Beam Calibration Requirements in 21cm Experiments and Implications for Near-Field Measurement","ref_index":11,"is_internal_anchor":false},{"citing_arxiv_id":"2605.10928","citing_title":"Mitigating residual foregrounds and systematic errors in SKA1-Low AA* EoR observations via Bayesian Gaussian Process Regression","ref_index":12,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6","json":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6.json","graph_json":"https://pith.science/api/pith-number/33U6GRCJN2MDOYNEQENYIFQMH6/graph.json","events_json":"https://pith.science/api/pith-number/33U6GRCJN2MDOYNEQENYIFQMH6/events.json","paper":"https://pith.science/paper/33U6GRCJ"},"agent_actions":{"view_html":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6","download_json":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6.json","view_paper":"https://pith.science/paper/33U6GRCJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2505.09097&json=true","fetch_graph":"https://pith.science/api/pith-number/33U6GRCJN2MDOYNEQENYIFQMH6/graph.json","fetch_events":"https://pith.science/api/pith-number/33U6GRCJN2MDOYNEQENYIFQMH6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6/action/storage_attestation","attest_author":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6/action/author_attestation","sign_citation":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6/action/citation_signature","submit_replication":"https://pith.science/pith/33U6GRCJN2MDOYNEQENYIFQMH6/action/replication_record"}},"created_at":"2026-07-05T11:02:50.207635+00:00","updated_at":"2026-07-05T11:02:50.207635+00:00"}