{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PPHBWMIPLE5LR6OMU2H55KGDZ7","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":"f3a5053047f91dd243dfffabf6aaf988699ec8997d237c2c0710c36c821fba3e","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-27T10:46:59Z","title_canon_sha256":"ce5c1a8b24d9fc58706eb1918c46b91721bf2212be0e38a0b022ed23845ba8dd"},"schema_version":"1.0","source":{"id":"1507.08549","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.08549","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"arxiv_version","alias_value":"1507.08549v2","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.08549","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"pith_short_12","alias_value":"PPHBWMIPLE5L","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PPHBWMIPLE5LR6OM","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PPHBWMIP","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:71160de88b8f252a4fca9cc631e26265d3588d7ba030840f6e96ae26459152f5","target":"graph","created_at":"2026-05-18T01:30:58Z","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":"A two-dimensional hydrodynamics code for Type Ia supernovae (SNIa) simulations is presented. The code includes a fifth-order shock-capturing scheme WENO, detailed nuclear reaction network, flame-capturing scheme and sub-grid turbulence. For post-processing we have developed a tracer particle scheme to record the thermodynamical history of the fluid elements. We also present a one-dimensional radiative transfer code for computing observational signals. The code solves the Lagrangian hydrodynamics and moment-integrated radiative transfer equations. A local ionization scheme and composition depen","authors_text":"L.-M. Lin, M.-C. Chu, S.-C. Leung","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-27T10:46:59Z","title":"A new hydrodynamics code for Type Ia Supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.08549","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":"sha256:0b63f8b7bb438cdaa66269e7fb5b7751924caa21396be06e92919edcfd2f7f46","target":"record","created_at":"2026-05-18T01:30:58Z","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":"f3a5053047f91dd243dfffabf6aaf988699ec8997d237c2c0710c36c821fba3e","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-27T10:46:59Z","title_canon_sha256":"ce5c1a8b24d9fc58706eb1918c46b91721bf2212be0e38a0b022ed23845ba8dd"},"schema_version":"1.0","source":{"id":"1507.08549","kind":"arxiv","version":2}},"canonical_sha256":"7bce1b310f593ab8f9cca68fdea8c3cff4a83e4264907fc357ad8016380212ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bce1b310f593ab8f9cca68fdea8c3cff4a83e4264907fc357ad8016380212ec","first_computed_at":"2026-05-18T01:30:58.000725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:58.000725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3R0R367+pJLSqx73dNpBBnJker0rxqUqBvBHtlaoHdzpi3MuTudzX2gHbYlHXL3WDqAm/vLt0u3VQj8foJwtCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:58.001094Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.08549","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b63f8b7bb438cdaa66269e7fb5b7751924caa21396be06e92919edcfd2f7f46","sha256:71160de88b8f252a4fca9cc631e26265d3588d7ba030840f6e96ae26459152f5"],"state_sha256":"37a2eb1c7876f7af84bde797ce1236c645c1009d87fe96cc548f477e9f0af793"}