{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:223SROKNU2GWCSYCXJRSYBCPMC","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":"2c0c134693969c6b6837186c4fffe0f3d1f584d4c7b2e0f494725dd3e519ad59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-18T17:00:15Z","title_canon_sha256":"0dfcdbd5efe7fccf8438776a9052ebbe856fde14fb3476601f6db45748dc1608"},"schema_version":"1.0","source":{"id":"1902.06647","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06647","created_at":"2026-05-17T23:47:26Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06647v1","created_at":"2026-05-17T23:47:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06647","created_at":"2026-05-17T23:47:26Z"},{"alias_kind":"pith_short_12","alias_value":"223SROKNU2GW","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"223SROKNU2GWCSYC","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"223SROKN","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:ff2fa042f94c554986df4ad7447132aee4adbd7c9f672290bc7d0212cf95f812","target":"graph","created_at":"2026-05-17T23:47:26Z","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"},"paper":{"abstract_excerpt":"Pair-Instability Supernovae (PISNe) may signal the deaths of extremely massive stars in the local Universe or massive primordial stars after the end of the Cosmic Dark Ages. Hydrodynamic simulations of these explosions, performed in 1D, 2D, and 3D geometry, have revealed the strong dependence of mixing in the PISN ejecta on dimensionality. This chemical rearrangement is mainly driven by Rayleigh-Taylor instabilities that start to grow shortly after the collapse of the carbon-oxygen core. We investigate the effects of such mixing on the spectroscopic evolution of PISNe by post-processing explos","authors_text":"C. Frohlich, E. Chatzopoulos, M. S. Gilmer, R. T. Wollaeger, W. P. Even","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-18T17:00:15Z","title":"Synthetic Spectra of Pair-Instability Supernovae in 3D"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06647","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:a3fa825e446ff26a1cff955695902655d0144e751c18849080b2159c449c6f19","target":"record","created_at":"2026-05-17T23:47:26Z","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":"2c0c134693969c6b6837186c4fffe0f3d1f584d4c7b2e0f494725dd3e519ad59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-18T17:00:15Z","title_canon_sha256":"0dfcdbd5efe7fccf8438776a9052ebbe856fde14fb3476601f6db45748dc1608"},"schema_version":"1.0","source":{"id":"1902.06647","kind":"arxiv","version":1}},"canonical_sha256":"d6b728b94da68d614b02ba632c044f6084fa9effd671d415ebad7c3579c7ac35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d6b728b94da68d614b02ba632c044f6084fa9effd671d415ebad7c3579c7ac35","first_computed_at":"2026-05-17T23:47:26.042758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:26.042758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yAHO/YmCw4IrmTf7sDVN36nP4E9X+jCnA1B8LaxVAHw36J3PzD3S/BNG17ZpEGp/ydF4ZDa2YlBDf306bMetBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:26.043419Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.06647","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3fa825e446ff26a1cff955695902655d0144e751c18849080b2159c449c6f19","sha256:ff2fa042f94c554986df4ad7447132aee4adbd7c9f672290bc7d0212cf95f812"],"state_sha256":"c9935a5d0144a0d23c7a31978ed6d034b614c503014bde8ac8d558e0642e08cc"}