{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NET3TUWNBV66WLKZBJR4MPDJIZ","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":"b5117a60f1e007c209ee18e9c22d7fc4d4b61f55dd12d882f560aca51b4b8670","cross_cats_sorted":["math.DS"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2022-12-29T06:41:07Z","title_canon_sha256":"4597d9f60f4a0f30dd38016af74b6bbdf6de69289faee351d3a77c8ae72eda70"},"schema_version":"1.0","source":{"id":"2301.01254","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.01254","created_at":"2026-07-05T05:30:22Z"},{"alias_kind":"arxiv_version","alias_value":"2301.01254v1","created_at":"2026-07-05T05:30:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.01254","created_at":"2026-07-05T05:30:22Z"},{"alias_kind":"pith_short_12","alias_value":"NET3TUWNBV66","created_at":"2026-07-05T05:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"NET3TUWNBV66WLKZ","created_at":"2026-07-05T05:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"NET3TUWN","created_at":"2026-07-05T05:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:196414292b625d99a04c379bfbae84c9e04a34a8d7338de8490ac88317694c28","target":"graph","created_at":"2026-07-05T05:30:22Z","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/2301.01254/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The prediction of the Madden-Julian Oscillation (MJO), a massive tropical weather event with vast global socio-economic impacts, has been infamously difficult with physics-based weather prediction models. Here we construct a machine learning model using reservoir computing technique that forecasts the real-time multivariate MJO index (RMM), a macroscopic variable that represents the state of the MJO. The training data was refined by developing a novel filter that extracts the recurrency of MJO signals from the raw atmospheric data and selecting a suitable time-delay coordinate of the RMM. The ","authors_text":"Daisuke Takasuka, Hiroaki Miura, Kengo Nakai, Takuya Jinno, Tamaki Suematsu, Tsuyoshi Yoneda, Yoshitaka Saiki","cross_cats":["math.DS"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2022-12-29T06:41:07Z","title":"Machine learning prediction of the MJO extends beyond one month"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.01254","kind":"arxiv","version":1},"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:a5a7a6299cb967df29901255fea5e13cd39fbf15044fa3979194caaad6c3566b","target":"record","created_at":"2026-07-05T05:30:22Z","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":"b5117a60f1e007c209ee18e9c22d7fc4d4b61f55dd12d882f560aca51b4b8670","cross_cats_sorted":["math.DS"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2022-12-29T06:41:07Z","title_canon_sha256":"4597d9f60f4a0f30dd38016af74b6bbdf6de69289faee351d3a77c8ae72eda70"},"schema_version":"1.0","source":{"id":"2301.01254","kind":"arxiv","version":1}},"canonical_sha256":"6927b9d2cd0d7deb2d590a63c63c694640e8c6f04bcfd34cfa7b35045789bb20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6927b9d2cd0d7deb2d590a63c63c694640e8c6f04bcfd34cfa7b35045789bb20","first_computed_at":"2026-07-05T05:30:22.374639Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:30:22.374639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OB26N1kNSIJBLG8n/UtRicACViMTqjIaebN/pA9ot+rwPlpA5igCVZgfnfCExgFTnUcsFNywjhopUVuA0IX5BA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:30:22.375002Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.01254","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5a7a6299cb967df29901255fea5e13cd39fbf15044fa3979194caaad6c3566b","sha256:196414292b625d99a04c379bfbae84c9e04a34a8d7338de8490ac88317694c28"],"state_sha256":"4be77496a44e5760d1fee03efd0e40b6a779b83c2fbf37f2512f79d226b9e31b"}