{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AZLVKESBKL7SLKPR52HDVT2BCO","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":"06337fb2e814229b6930b88ae1f7e736f343ed840403c032980de69ee920d55d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-12T18:27:44Z","title_canon_sha256":"9cdc2e4ce51e4e188c8c24d9aa18ac461e6c56bd745ba840c2f4e84f9ee7e57c"},"schema_version":"1.0","source":{"id":"2508.09273","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.09273","created_at":"2026-07-05T11:53:11Z"},{"alias_kind":"arxiv_version","alias_value":"2508.09273v1","created_at":"2026-07-05T11:53:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.09273","created_at":"2026-07-05T11:53:11Z"},{"alias_kind":"pith_short_12","alias_value":"AZLVKESBKL7S","created_at":"2026-07-05T11:53:11Z"},{"alias_kind":"pith_short_16","alias_value":"AZLVKESBKL7SLKPR","created_at":"2026-07-05T11:53:11Z"},{"alias_kind":"pith_short_8","alias_value":"AZLVKESB","created_at":"2026-07-05T11:53:11Z"}],"graph_snapshots":[{"event_id":"sha256:af2f9e22a26f83ffa0969e85b690b9469636fec54a39ba36b989d6a24bb3fd21","target":"graph","created_at":"2026-07-05T11:53:11Z","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/2508.09273/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accretion of material from a protoplanetary disc on to a forming giant planet can spin the planet up to close to its breakup rate, $\\Omega_{\\rm b}=(G M_{\\rm p}/R_{\\rm p}^3)$, where $M_{\\rm p}$ is the mass and $R_{\\rm p}$ is the radius of the planet. After the protoplanetary disc dissipates, the rapidly rotating planet may eject a decretion (outflowing) disc in a similar way to a Be star. Boundary layer effects in a hydrodynamic disc allow for decretion disc formation at spin rates below the breakup spin rate of the planet. The decretion disc exerts a torque on the planet that slows its spin to","authors_text":"David Vallet, Madeline Overton, Rebecca G. Martin, Shunquan Huang, Stephen H. Lubow, Stephen Lepp, Zhaohuan Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-12T18:27:44Z","title":"Primordial planet spin driven by boundary layer effects in a decretion disc"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.09273","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":"sha256:97abad1e2c39bbd3680dc8df743834e6f53c3bce923fecad6b201b949d005417","target":"record","created_at":"2026-07-05T11:53:11Z","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":"06337fb2e814229b6930b88ae1f7e736f343ed840403c032980de69ee920d55d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-08-12T18:27:44Z","title_canon_sha256":"9cdc2e4ce51e4e188c8c24d9aa18ac461e6c56bd745ba840c2f4e84f9ee7e57c"},"schema_version":"1.0","source":{"id":"2508.09273","kind":"arxiv","version":1}},"canonical_sha256":"065755124152ff25a9f1ee8e3acf411393cc7d9ced3e5d2f9f28d35bb62bc1bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"065755124152ff25a9f1ee8e3acf411393cc7d9ced3e5d2f9f28d35bb62bc1bb","first_computed_at":"2026-07-05T11:53:11.772643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:53:11.772643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YPcql5MHoEYX90LlbCsWoT4lLGRqdMTUimf7hlsXGlQRz8vNgwtJVptEBgHOr3B2j+1jkplvc78BTGPPdTBsBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:53:11.773149Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.09273","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97abad1e2c39bbd3680dc8df743834e6f53c3bce923fecad6b201b949d005417","sha256:af2f9e22a26f83ffa0969e85b690b9469636fec54a39ba36b989d6a24bb3fd21"],"state_sha256":"1a17e6571f0ab290c2c82622759bc7af109c4d27bb97fd5248c9d803627e4b1f"}