{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PWAYIGZUP26JKOFNRWH76HXI4K","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":"cc8de52c8eafdbd0cc06d4f223de0da11248f557da27feae2acbbb968391f9fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-03-12T10:50:44Z","title_canon_sha256":"c8551107f5a6fcfa8ebb11dd268cff86644d5d67ef34778df2336d05e129583e"},"schema_version":"1.0","source":{"id":"2603.11787","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.11787","created_at":"2026-05-27T14:06:41Z"},{"alias_kind":"arxiv_version","alias_value":"2603.11787v2","created_at":"2026-05-27T14:06:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.11787","created_at":"2026-05-27T14:06:41Z"},{"alias_kind":"pith_short_12","alias_value":"PWAYIGZUP26J","created_at":"2026-05-27T14:06:41Z"},{"alias_kind":"pith_short_16","alias_value":"PWAYIGZUP26JKOFN","created_at":"2026-05-27T14:06:41Z"},{"alias_kind":"pith_short_8","alias_value":"PWAYIGZU","created_at":"2026-05-27T14:06:41Z"}],"graph_snapshots":[{"event_id":"sha256:c110fa93fba279e121f592992d7eb2601114680ed63f6c4b12f0cf1690c1f5c6","target":"graph","created_at":"2026-05-27T14:06:41Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Using the code BALEINES, which solves for the equilibrium figures of the boundaries between layers, we show that the hydrostatic models closest to the shape derived by stellar occultation approach a state of critical rotation, which translates into a pinched shape with large deviations from an ellipsoid (up to 110 km)."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The assumption of three specific interior model groups with a rocky core, an intermediate layer of suggested partial differentiation or organic matter, and a volatile-rich outer shell possibly containing porosity, combined with the premise that Haumea is in hydrostatic equilibrium."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Hydrostatic equilibrium models of Haumea with layered interiors predict a pinched shape deviating up to 110 km from an ellipsoid, potentially detectable in the 2026 occultation."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Haumea's observed shape matches hydrostatic models near critical rotation that pinch and deviate up to 110 km from an ellipsoid."}],"snapshot_sha256":"550bc5355a295bbae1db57170684b9f20a9bd76d4549825f69c737c6f8111a43"},"formal_canon":{"evidence_count":1,"snapshot_sha256":"e0e5f03eda1e26117076c35ef23ccf2cfbda24f629d82c83bc83cef53195b88e"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2603.11787/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The equilibrium figure of dwarf planet Haumea is studied to determine if the observed shape is compatible with a differentiated hydrostatic body. Three groups of interior models of Haumea are assumed, all with a rocky core and a volatile-rich outer shell that may contain some porosity. A third layer located between the core and the outer shell has a density suggesting partial differentiation or the presence of a large fraction of organic matter. Using the code BALEINES, which solves for the equilibrium figures of the boundaries between layers, we show that the hydrostatic models closest to the","authors_text":"C. Staelen, F. Chambat, J. C. Castillo-Rogez, N. Rambaux","cross_cats":[],"headline":"Haumea's observed shape matches hydrostatic models near critical rotation that pinch and deviate up to 110 km from an ellipsoid.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-03-12T10:50:44Z","title":"Equilibrium figure of Haumea and possible detection by stellar occultation"},"references":{"count":23,"internal_anchors":0,"resolved_work":23,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"2024, Nature Communications, 15, 6202","work_id":"26d121f4-510c-49b2-b6fb-1574e60149db","year":2024},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"Barr, A. C. & Schwamb, M. E. 2016, MNRAS, 460, 1542 Brozovi´c, M. & Jacobson, R. A. 2024, AJ, 167, 256","work_id":"57034324-dda6-4380-aa17-6d087d26d6a3","year":2016},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"2023, Journal of Geophys- ical Research: Planets, 128, e2022JE007432","work_id":"21ba915a-1fb2-4081-bed6-ef1a9d89a238","year":2023},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"2023, A&A, 675, L2","work_id":"83d9f2b6-95b4-455f-9421-0689986fa884","year":2023},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"Dunham, E. T., Desch, S. J., & Probst, L. 2019, ApJ, 877, 41","work_id":"bb39b336-b0da-4e2e-8e18-7705ce0d1216","year":2019}],"snapshot_sha256":"c09e298743eee67462c04a599b33c1dffc4223acab73c4fb0d2c28d00834842c"},"source":{"id":"2603.11787","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-15T12:22:06.288804Z","id":"43aaeb8d-19cb-42cf-8a50-6a99df44ad68","model_set":{"reader":"grok-4.3"},"one_line_summary":"Hydrostatic equilibrium models of Haumea with layered interiors predict a pinched shape deviating up to 110 km from an ellipsoid, potentially detectable in the 2026 occultation.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Haumea's observed shape matches hydrostatic models near critical rotation that pinch and deviate up to 110 km from an ellipsoid.","strongest_claim":"Using the code BALEINES, which solves for the equilibrium figures of the boundaries between layers, we show that the hydrostatic models closest to the shape derived by stellar occultation approach a state of critical rotation, which translates into a pinched shape with large deviations from an ellipsoid (up to 110 km).","weakest_assumption":"The assumption of three specific interior model groups with a rocky core, an intermediate layer of suggested partial differentiation or organic matter, and a volatile-rich outer shell possibly containing porosity, combined with the premise that Haumea is in hydrostatic equilibrium."}},"verdict_id":"43aaeb8d-19cb-42cf-8a50-6a99df44ad68"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:244d6592634586e1633a9272335eddec7fa2c12124817d5301b4612499a5c25d","target":"record","created_at":"2026-05-27T14:06:41Z","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":"cc8de52c8eafdbd0cc06d4f223de0da11248f557da27feae2acbbb968391f9fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-03-12T10:50:44Z","title_canon_sha256":"c8551107f5a6fcfa8ebb11dd268cff86644d5d67ef34778df2336d05e129583e"},"schema_version":"1.0","source":{"id":"2603.11787","kind":"arxiv","version":2}},"canonical_sha256":"7d81841b347ebc9538ad8d8fff1ee8e2af406d4e88fcfd86129c079204c783a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d81841b347ebc9538ad8d8fff1ee8e2af406d4e88fcfd86129c079204c783a1","first_computed_at":"2026-05-27T14:06:41.508982Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T14:06:41.508982Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ghx/MVIzvc07cCnfYkJN2Ft1iK8Sx6qrOQW2+ysjG5lSaqLVzSlY1tax+A4gsLK5YbpfrjDZNbirDst8jLeBDg==","signature_status":"signed_v1","signed_at":"2026-05-27T14:06:41.510071Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.11787","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:244d6592634586e1633a9272335eddec7fa2c12124817d5301b4612499a5c25d","sha256:c110fa93fba279e121f592992d7eb2601114680ed63f6c4b12f0cf1690c1f5c6"],"state_sha256":"506e994d0b80fe8ca55eda7148ccf03007e1346ae3ad8a8b5cf00b0c1178bda0"}