{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BRAM7I6KDGSUENZFFLNB4MOMQC","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":"d2ff758d1c8021132012931c36b5c44df7869db7e9e5a09878c8870bcea87b37","cross_cats_sorted":["cs.LG","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-01-29T17:15:22Z","title_canon_sha256":"cd3770abb1c7cae1f5c8809fa0cc6ad73e56b98b1ede13ff252715113b7d012f"},"schema_version":"1.0","source":{"id":"2501.17781","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.17781","created_at":"2026-07-05T11:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"2501.17781v2","created_at":"2026-07-05T11:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.17781","created_at":"2026-07-05T11:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"BRAM7I6KDGSU","created_at":"2026-07-05T11:08:15Z"},{"alias_kind":"pith_short_16","alias_value":"BRAM7I6KDGSUENZF","created_at":"2026-07-05T11:08:15Z"},{"alias_kind":"pith_short_8","alias_value":"BRAM7I6K","created_at":"2026-07-05T11:08:15Z"}],"graph_snapshots":[{"event_id":"sha256:fce6009216caf90dd2dbb715f842bed5dcd023fde2937c8494f3a12b2f3cad8d","target":"graph","created_at":"2026-07-05T11:08:15Z","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/2501.17781/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, the application of machine learning approaches to time-series forecasting of climate dynamical phenomena has become increasingly active. It is known that applying a band-pass filter to a time-series data is a key to obtaining a high-quality data-driven model. Here, to obtain longer-term predictability of machine learning models, we introduce a new type of band-pass filter. It can be applied to realtime operational prediction workflows since it relies solely on past time series. We combine the filter with reservoir computing, which is a machine-learning technique that employs a","authors_text":"Kengo Nakai, Takahito Mitsui, Takuya Jinno, Tsuyoshi Yoneda, Yoshitaka Saiki","cross_cats":["cs.LG","physics.ao-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-01-29T17:15:22Z","title":"Long-term prediction of El Ni\\~no-Southern Oscillation using reservoir computing with data-driven realtime filter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.17781","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":"sha256:5a6bf09a5ab0a1696d31265aef4b122f163965c96a94a137d0878d1d203d8f3b","target":"record","created_at":"2026-07-05T11:08:15Z","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":"d2ff758d1c8021132012931c36b5c44df7869db7e9e5a09878c8870bcea87b37","cross_cats_sorted":["cs.LG","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-01-29T17:15:22Z","title_canon_sha256":"cd3770abb1c7cae1f5c8809fa0cc6ad73e56b98b1ede13ff252715113b7d012f"},"schema_version":"1.0","source":{"id":"2501.17781","kind":"arxiv","version":2}},"canonical_sha256":"0c40cfa3ca19a54237252ada1e31cc80bf90464d4686ce94ffc67c46f6f1e6ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c40cfa3ca19a54237252ada1e31cc80bf90464d4686ce94ffc67c46f6f1e6ce","first_computed_at":"2026-07-05T11:08:15.620884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:08:15.620884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W/AIASg1rPyIZ9S87VvEMjp3wc66wEhDjwebcLJ9s8l9aHZqRTws0Aux0w4jxQtT+zUAakoce7HWwSYqdJ0jCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:08:15.621591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.17781","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a6bf09a5ab0a1696d31265aef4b122f163965c96a94a137d0878d1d203d8f3b","sha256:fce6009216caf90dd2dbb715f842bed5dcd023fde2937c8494f3a12b2f3cad8d"],"state_sha256":"5f1be3281bee31b5d51f85d5858bf4bd0f6003ea23cd90e58caa1d4dc22f764d"}