{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:LTLCWM3LBA55DY7Y56OTPNDIJT","short_pith_number":"pith:LTLCWM3L","schema_version":"1.0","canonical_sha256":"5cd62b336b083bd1e3f8ef9d37b4684cdf34aa734ad14d3a80ada43ebb9cced6","source":{"kind":"arxiv","id":"2412.20862","version":3},"attestation_state":"computed","paper":{"title":"Nonlinear reconstruction of 21cm global signal from 21cm power spectrum with artificial neural networks","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Hayato Shimabukuro","submitted_at":"2024-12-30T11:02:20Z","abstract_excerpt":"In this paper, we propose a novel method to recover the 21cm global signal from the 21cm power spectrum using artificial neural networks (ANNs). The 21cm global signal is crucial for understanding cosmic evolution from the Dark Ages through the Epoch of Reionization (EoR). While interferometers like LOFAR, MWA, HERA, and SKA focus on detecting the 21cm power spectrum, single-dish experiments such as EDGES target the global signal. Our method utilizes ANNs to establish a connection between these two observables, providing a means to cross-validate independent 21cm line observations. This capabi"},"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":"2412.20862","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-12-30T11:02:20Z","cross_cats_sorted":[],"title_canon_sha256":"6004b41234404d6647ade9c23a11372b9b8b7c61a9aa86fc9ea82610bbc1e1ed","abstract_canon_sha256":"9a96874d1256cbf55cc10a247c78b374973186e938cd35235cc8c5055d27ff7f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:33:18.927115Z","signature_b64":"/lJq8RkYwku9KKZcV5Qok2sOxTfnA/aophrbafQUmwfkKOFUIGW3fDov+fe6y7JsMEe856hYthRklRZMX+ADCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cd62b336b083bd1e3f8ef9d37b4684cdf34aa734ad14d3a80ada43ebb9cced6","last_reissued_at":"2026-07-05T11:33:18.926574Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:33:18.926574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nonlinear reconstruction of 21cm global signal from 21cm power spectrum with artificial neural networks","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Hayato Shimabukuro","submitted_at":"2024-12-30T11:02:20Z","abstract_excerpt":"In this paper, we propose a novel method to recover the 21cm global signal from the 21cm power spectrum using artificial neural networks (ANNs). The 21cm global signal is crucial for understanding cosmic evolution from the Dark Ages through the Epoch of Reionization (EoR). While interferometers like LOFAR, MWA, HERA, and SKA focus on detecting the 21cm power spectrum, single-dish experiments such as EDGES target the global signal. Our method utilizes ANNs to establish a connection between these two observables, providing a means to cross-validate independent 21cm line observations. This capabi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.20862","kind":"arxiv","version":3},"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/2412.20862/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":"2412.20862","created_at":"2026-07-05T11:33:18.926635+00:00"},{"alias_kind":"arxiv_version","alias_value":"2412.20862v3","created_at":"2026-07-05T11:33:18.926635+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.20862","created_at":"2026-07-05T11:33:18.926635+00:00"},{"alias_kind":"pith_short_12","alias_value":"LTLCWM3LBA55","created_at":"2026-07-05T11:33:18.926635+00:00"},{"alias_kind":"pith_short_16","alias_value":"LTLCWM3LBA55DY7Y","created_at":"2026-07-05T11:33:18.926635+00:00"},{"alias_kind":"pith_short_8","alias_value":"LTLCWM3L","created_at":"2026-07-05T11:33:18.926635+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/LTLCWM3LBA55DY7Y56OTPNDIJT","json":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT.json","graph_json":"https://pith.science/api/pith-number/LTLCWM3LBA55DY7Y56OTPNDIJT/graph.json","events_json":"https://pith.science/api/pith-number/LTLCWM3LBA55DY7Y56OTPNDIJT/events.json","paper":"https://pith.science/paper/LTLCWM3L"},"agent_actions":{"view_html":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT","download_json":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT.json","view_paper":"https://pith.science/paper/LTLCWM3L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2412.20862&json=true","fetch_graph":"https://pith.science/api/pith-number/LTLCWM3LBA55DY7Y56OTPNDIJT/graph.json","fetch_events":"https://pith.science/api/pith-number/LTLCWM3LBA55DY7Y56OTPNDIJT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT/action/storage_attestation","attest_author":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT/action/author_attestation","sign_citation":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT/action/citation_signature","submit_replication":"https://pith.science/pith/LTLCWM3LBA55DY7Y56OTPNDIJT/action/replication_record"}},"created_at":"2026-07-05T11:33:18.926635+00:00","updated_at":"2026-07-05T11:33:18.926635+00:00"}