{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BQSGQ6IRGGMRNOC7M2UODDKK6M","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":"c414f01e1c11e9999f3148ae6cdc3abdc91c0b17b5fb5fbcbfafc3ecd40e9c20","cross_cats_sorted":["math.DS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-02-03T11:51:23Z","title_canon_sha256":"8fe33a364bd02397fb71dd4947ff453a11e60c90c8e8268a04b79a9d62b355a8"},"schema_version":"1.0","source":{"id":"2502.01279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.01279","created_at":"2026-07-05T10:08:45Z"},{"alias_kind":"arxiv_version","alias_value":"2502.01279v1","created_at":"2026-07-05T10:08:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.01279","created_at":"2026-07-05T10:08:45Z"},{"alias_kind":"pith_short_12","alias_value":"BQSGQ6IRGGMR","created_at":"2026-07-05T10:08:45Z"},{"alias_kind":"pith_short_16","alias_value":"BQSGQ6IRGGMRNOC7","created_at":"2026-07-05T10:08:45Z"},{"alias_kind":"pith_short_8","alias_value":"BQSGQ6IR","created_at":"2026-07-05T10:08:45Z"}],"graph_snapshots":[{"event_id":"sha256:fd3362f7910405f96b4e5a4394419cbcdaf64ac71b1bb92fb92149b971c65d54","target":"graph","created_at":"2026-07-05T10:08:45Z","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/2502.01279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Low-order climate models can play an important role in understanding low-frequency variability in the atmospheric circulation and how forcing consistent with anthropogenic climate change may affect this variability. Here, we study a conceptual model of the mid-latitudes' atmospheric circulation from the perspective of nonautonomous dynamical systems. First, a bifurcation analysis is carried out under time-independent forcing in order to identify different types of behavior in the autonomous model's parameter space. Next, we focus on the study of the nonautonomous system in which the cross-lati","authors_text":"Bernardo Maraldi, Henk Dijkstra, Michael Ghil","cross_cats":["math.DS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-02-03T11:51:23Z","title":"Intraseasonal atmospheric variability under climate trends"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.01279","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:ab5269a1c60a292cfe4bd522f0446058a4b7b42a480d9c27eb925293e76768d1","target":"record","created_at":"2026-07-05T10:08:45Z","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":"c414f01e1c11e9999f3148ae6cdc3abdc91c0b17b5fb5fbcbfafc3ecd40e9c20","cross_cats_sorted":["math.DS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-02-03T11:51:23Z","title_canon_sha256":"8fe33a364bd02397fb71dd4947ff453a11e60c90c8e8268a04b79a9d62b355a8"},"schema_version":"1.0","source":{"id":"2502.01279","kind":"arxiv","version":1}},"canonical_sha256":"0c24687911319916b85f66a8e18d4af32802dc9e1b25ba161870b42728186491","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c24687911319916b85f66a8e18d4af32802dc9e1b25ba161870b42728186491","first_computed_at":"2026-07-05T10:08:45.206749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:08:45.206749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZuUofMHv596KFyOGfSfsnWwn00Co/mrzTfJ47pU7TVm9lrsYaBTEbt4DJrLt305TZLnB0S2Rz59H3D333rQjCA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:08:45.207233Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.01279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab5269a1c60a292cfe4bd522f0446058a4b7b42a480d9c27eb925293e76768d1","sha256:fd3362f7910405f96b4e5a4394419cbcdaf64ac71b1bb92fb92149b971c65d54"],"state_sha256":"ea7343155625906a5a99c6b000341ac2cfb56a9a2a1860c830a12f10bde66cbf"}