{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:243KFURFPSZXNCPQK6XFIMQXCG","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":"e9fb03d02d916aafcd5e0b2e2b080cd2a474ee09dc256444275dfd5e5072cec9","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-02-24T13:18:31Z","title_canon_sha256":"b3ea4befe271bda026f0380e6ded8d50008c302b8e08a7aecaee72f781f6aa5a"},"schema_version":"1.0","source":{"id":"2002.10218","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.10218","created_at":"2026-07-05T02:13:12Z"},{"alias_kind":"arxiv_version","alias_value":"2002.10218v3","created_at":"2026-07-05T02:13:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.10218","created_at":"2026-07-05T02:13:12Z"},{"alias_kind":"pith_short_12","alias_value":"243KFURFPSZX","created_at":"2026-07-05T02:13:12Z"},{"alias_kind":"pith_short_16","alias_value":"243KFURFPSZXNCPQ","created_at":"2026-07-05T02:13:12Z"},{"alias_kind":"pith_short_8","alias_value":"243KFURF","created_at":"2026-07-05T02:13:12Z"}],"graph_snapshots":[{"event_id":"sha256:6b016e08f17140d51cb9bb9610d2cbe9871720280e5b89fda003ce7049791142","target":"graph","created_at":"2026-07-05T02:13:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2002.10218/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a new scheme to reconstruct the baryon acoustic oscillations (BAO) signal, which contains key cosmological information, based on deep convolutional neural networks (CNN). Trained with almost no fine-tuning, the network can recover large-scale modes accurately in the test set: the correlation coefficient between the true and reconstructed initial conditions reaches $90\\%$ at $k\\leq 0.2 h\\mathrm{Mpc}^{-1}$, which can lead to significant improvements of the BAO signal-to-noise ratio down to $k\\simeq0.4h\\mathrm{Mpc}^{-1}$. Since this new scheme is based on the configuration-space densit","authors_text":"Alex Szalay, Baojiu Li, Bridget Falck, Jie Wang, Mark Neyrinck, Tian-Xiang Mao, Yan-Chuan Cai","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-02-24T13:18:31Z","title":"Baryon acoustic oscillations reconstruction using convolutional neural networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.10218","kind":"arxiv","version":3},"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":"sha256:8bb85beb6bf1e30bd47b3cd981f371435dbd7e6c7b88837f164337abf8318bf3","target":"record","created_at":"2026-07-05T02:13:12Z","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":"e9fb03d02d916aafcd5e0b2e2b080cd2a474ee09dc256444275dfd5e5072cec9","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-02-24T13:18:31Z","title_canon_sha256":"b3ea4befe271bda026f0380e6ded8d50008c302b8e08a7aecaee72f781f6aa5a"},"schema_version":"1.0","source":{"id":"2002.10218","kind":"arxiv","version":3}},"canonical_sha256":"d736a2d2257cb37689f057ae54321711b51ac12469f8c5d9835eb469b956933f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d736a2d2257cb37689f057ae54321711b51ac12469f8c5d9835eb469b956933f","first_computed_at":"2026-07-05T02:13:12.634088Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:13:12.634088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/LUtK38W91ZtlbfSxJxTYqBrfOXTeK0JL7tBctLrF2shuiA7ilwE8PTRle1vUg9fTLXIz0vMR9eDkoMuwuF4Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:13:12.634549Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.10218","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bb85beb6bf1e30bd47b3cd981f371435dbd7e6c7b88837f164337abf8318bf3","sha256:6b016e08f17140d51cb9bb9610d2cbe9871720280e5b89fda003ce7049791142"],"state_sha256":"d1182fbfa3083de27ce3898f318f9409b4b0bc5d58a3adda4a99d649dfbb160a"}