{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:CYF4I5QMPJWJU6WSBXHSGEPEDT","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":"679c6185c7cd28f85cb84f51bca018b9a5c962b57119d25e8ee6daa0d36cb907","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-10T16:50:49Z","title_canon_sha256":"47a55a5e8e01bdd4f76380d7b979f49c5a95439fb7810bed00efe0e040c7d4b7"},"schema_version":"1.0","source":{"id":"0811.1517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1517","created_at":"2026-07-04T15:46:22Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1517v1","created_at":"2026-07-04T15:46:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1517","created_at":"2026-07-04T15:46:22Z"},{"alias_kind":"pith_short_12","alias_value":"CYF4I5QMPJWJ","created_at":"2026-07-04T15:46:22Z"},{"alias_kind":"pith_short_16","alias_value":"CYF4I5QMPJWJU6WS","created_at":"2026-07-04T15:46:22Z"},{"alias_kind":"pith_short_8","alias_value":"CYF4I5QM","created_at":"2026-07-04T15:46:22Z"}],"graph_snapshots":[{"event_id":"sha256:3202d88fbc771abdb2ddb52b12997541c7f717dd41f6517d1a21214f305e72ed","target":"graph","created_at":"2026-07-04T15:46:22Z","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/0811.1517/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a numerical study of the mass transfer dynamics prior to the gravitational wave-driven merger of a double white dwarf system. Recently, there has been some discussion about the dynamics of these last stages, different methods seemed to provide qualitatively different results. While earlier SPH simulations indicated a very quick disruption of the binary on roughly the orbital time scale, more recent grid-based calculations find long-lived mass transfer for many orbital periods. Here we demonstrate how sensitive the dynamics of this last stage is to the exact initial conditions. We sh","authors_text":"M. Br\\\"uggen, M. Dan, S. Rosswog","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-10T16:50:49Z","title":"Mass transfer dynamics in double degenerate binary systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1517","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:a37224c6acc39ba802a92abf8d82fdc0b19e073e9f64cb0f9b837734ce926544","target":"record","created_at":"2026-07-04T15:46:22Z","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":"679c6185c7cd28f85cb84f51bca018b9a5c962b57119d25e8ee6daa0d36cb907","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-10T16:50:49Z","title_canon_sha256":"47a55a5e8e01bdd4f76380d7b979f49c5a95439fb7810bed00efe0e040c7d4b7"},"schema_version":"1.0","source":{"id":"0811.1517","kind":"arxiv","version":1}},"canonical_sha256":"160bc4760c7a6c9a7ad20dcf2311e41ceba0522ec755c4f5242f72755b5beafb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"160bc4760c7a6c9a7ad20dcf2311e41ceba0522ec755c4f5242f72755b5beafb","first_computed_at":"2026-07-04T15:46:22.750426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:46:22.750426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fm66XsDXZU/8SSfV3ufQPNJUuTGvlPXvrSkyTNWMpMcbo39wKY2dkJuUs5+xOTwRKHlVNHBca1fqzvd939woDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:46:22.750769Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.1517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a37224c6acc39ba802a92abf8d82fdc0b19e073e9f64cb0f9b837734ce926544","sha256:3202d88fbc771abdb2ddb52b12997541c7f717dd41f6517d1a21214f305e72ed"],"state_sha256":"87927ca7140212d622da72d823519194630d98b08f672243c034c3712ec0f608"}