{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:CM6BRXK26GPEIQC6SIR7YCSNHE","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":"9458b90ac1f3111b3d564507fe5df61cf2533c6a5a43e555724489b47cd97d95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:13:32Z","title_canon_sha256":"f29ff99e2d2589f8d6a701d947b7fd29f04ef8c7b2a23be913c26bc745887a0e"},"schema_version":"1.0","source":{"id":"0812.4574","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.4574","created_at":"2026-05-18T02:35:08Z"},{"alias_kind":"arxiv_version","alias_value":"0812.4574v2","created_at":"2026-05-18T02:35:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4574","created_at":"2026-05-18T02:35:08Z"},{"alias_kind":"pith_short_12","alias_value":"CM6BRXK26GPE","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"CM6BRXK26GPEIQC6","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"CM6BRXK2","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:d0a8dc014b8818e860b9ab08df5ca0d0362124f57c45457549cfd232be6aa088","target":"graph","created_at":"2026-05-18T02:35:08Z","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":"We investigate the effects of neutrino heating and alpha-particle recombination on the hydrodynamics of core-collapse supernovae. Our focus is on the non-linear dynamics of the shock wave that forms in the collapse, and the assembly of positive energy material below it. To this end, we perform time-dependent hydrodynamic simulations with FLASH2.5 in spherical and axial symmetry. These generalize our previous calculations by allowing for bulk neutrino heating and for nuclear statistical equilibrium between n, p and alpha. The heating rate is freely tunable, as is the starting radius of the shoc","authors_text":"Christopher Thompson (CITA), Rodrigo Fern\\'andez (University of Toronto)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:13:32Z","title":"Dynamics of a Spherical Accretion Shock with Neutrino Heating and Alpha-Particle Recombination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4574","kind":"arxiv","version":2},"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":"sha256:59f0c6a9461668ee775df56195ffc6e954d6dd280ce70a5d8fac466e9a44d4b0","target":"record","created_at":"2026-05-18T02:35:08Z","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":"9458b90ac1f3111b3d564507fe5df61cf2533c6a5a43e555724489b47cd97d95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:13:32Z","title_canon_sha256":"f29ff99e2d2589f8d6a701d947b7fd29f04ef8c7b2a23be913c26bc745887a0e"},"schema_version":"1.0","source":{"id":"0812.4574","kind":"arxiv","version":2}},"canonical_sha256":"133c18dd5af19e44405e9223fc0a4d3920cabc34ff7c469f1da1aa6e1be9a6c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"133c18dd5af19e44405e9223fc0a4d3920cabc34ff7c469f1da1aa6e1be9a6c4","first_computed_at":"2026-05-18T02:35:08.546469Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:35:08.546469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KeOtlDT75jfzAL3FeXm5/9fwzwUA16fNegs8d8LEEmPVtnsTzNxHDtVPqB007GkAC2LL7ww6XODAViUS3au+Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:35:08.546852Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.4574","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59f0c6a9461668ee775df56195ffc6e954d6dd280ce70a5d8fac466e9a44d4b0","sha256:d0a8dc014b8818e860b9ab08df5ca0d0362124f57c45457549cfd232be6aa088"],"state_sha256":"a9fea47a0a1884e635712ad29049877c9a2f3d50863c76527be04b6380ba240f"}