{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PJZFDWXZLUDUFIVDJ7X5ZDCDYD","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":"0569c554cc721c1b82351c6f3b5f7bedbc2404495d94d41e618f52df0578c393","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-09T02:38:58Z","title_canon_sha256":"476933ba3e72f666173fb2574502b40085268fed0674ede5874c5879292bdea0"},"schema_version":"1.0","source":{"id":"2507.06494","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.06494","created_at":"2026-07-05T11:34:17Z"},{"alias_kind":"arxiv_version","alias_value":"2507.06494v1","created_at":"2026-07-05T11:34:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.06494","created_at":"2026-07-05T11:34:17Z"},{"alias_kind":"pith_short_12","alias_value":"PJZFDWXZLUDU","created_at":"2026-07-05T11:34:17Z"},{"alias_kind":"pith_short_16","alias_value":"PJZFDWXZLUDUFIVD","created_at":"2026-07-05T11:34:17Z"},{"alias_kind":"pith_short_8","alias_value":"PJZFDWXZ","created_at":"2026-07-05T11:34:17Z"}],"graph_snapshots":[{"event_id":"sha256:192a3badcd2a35f923bc98258285a8d088910228e1905e62718bee9b35fb09e1","target":"graph","created_at":"2026-07-05T11:34:17Z","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/2507.06494/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Classical Cepheids (CCs) are important probes for the large-scale warp structure of the Milky Way. Using Gaia DR3 CCs, we establish an optimal time-dependent warp model, where the warp height increases with radius following a power-law, the line of nodes (LONs) exhibit linear twisting with radius, following a leading spiral pattern, and the LONs undergo prograde evolution over time. Structurally, we identify significant warp features in the $5-9$ kpc region of the Galactic disk, where the warp model performs better than the flat model. Beyond 15 kpc, the model with the second Fourier term does","authors_text":"Jianxing Zhang, Jiyu Wang, Licai Deng, Shu Wang, Xiaodian Chen, Xiaoyue Zhou","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-09T02:38:58Z","title":"A Detailed Analysis of the Milky Way Warp Based on Classical Cepheids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.06494","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:a1ac910a7a741144f455d1ed8cb8ea69e22b6be66e143fd5ef09ad6553f036a3","target":"record","created_at":"2026-07-05T11:34:17Z","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":"0569c554cc721c1b82351c6f3b5f7bedbc2404495d94d41e618f52df0578c393","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-09T02:38:58Z","title_canon_sha256":"476933ba3e72f666173fb2574502b40085268fed0674ede5874c5879292bdea0"},"schema_version":"1.0","source":{"id":"2507.06494","kind":"arxiv","version":1}},"canonical_sha256":"7a7251daf95d0742a2a34fefdc8c43c0dfaa0b69689c7779a86e8eeefc7e4b98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a7251daf95d0742a2a34fefdc8c43c0dfaa0b69689c7779a86e8eeefc7e4b98","first_computed_at":"2026-07-05T11:34:17.091156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:34:17.091156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h9k9VcNqc3YZk5kzIC7/kdA+On3xlnKlXL24PQEZMgT75kaMoXgOjdKXtAE/bcxeGM+D0wZ2Qb+NunQYMzRyBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:34:17.091723Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.06494","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1ac910a7a741144f455d1ed8cb8ea69e22b6be66e143fd5ef09ad6553f036a3","sha256:192a3badcd2a35f923bc98258285a8d088910228e1905e62718bee9b35fb09e1"],"state_sha256":"dd18f30f6e4cf5e769e4adb051c2d49d9e2eb4f288bca1fa803e85ac2d54ab69"}