{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:L5SFMNC45FWQJNT27MDFVMQQH6","short_pith_number":"pith:L5SFMNC4","schema_version":"1.0","canonical_sha256":"5f6456345ce96d04b67afb065ab2103fb7f37e5a03c0505b427fd13b699921c1","source":{"kind":"arxiv","id":"1702.03562","version":1},"attestation_state":"computed","paper":{"title":"A Comparison of Grid-Based and SPH Binary Mass-Transfer and Merger Simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Christopher L Fryer, Geoffrey C Clayton, Jan Staff, Joel E Tohline, Juhan Frank, Patrick M Motl, Steven Diehl, Wesley Even","submitted_at":"2017-02-12T19:27:27Z","abstract_excerpt":"Currently there is great interest in the outcomes and astrophysical implications of mergers of double degenerate binaries. In a commonly adopted approximation, the components of such binaries are represented by polytropes with an index n=3/2. We present detailed comparisons of stellar mass-transfer and merger simulations of polytropic binaries that have been carried out using two very different numerical algorithms --- a finite-volume \"grid\" code and a smoothed-particle hydrodynamics (SPH) code. We find that there is agreement in both the ultimate outcomes of the evolutions and the intermediat"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1702.03562","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-12T19:27:27Z","cross_cats_sorted":[],"title_canon_sha256":"1758b03f5f95f845b20e293db88ee9c4b65859da7f71f8a0140b1419ae87ff7b","abstract_canon_sha256":"2294c2b1c9ceee61e4fcda3146a6778a6c32f79e8489119f98dcd68e89ba336d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:03.432014Z","signature_b64":"f3AW+Ubkhg1JsTN+YWC7iJc4bpX1L9vip3gvP3a50aYzv6ba/hdWprSeZxVgiJcK2hEIzSdkuGGWmzHBJmiiBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f6456345ce96d04b67afb065ab2103fb7f37e5a03c0505b427fd13b699921c1","last_reissued_at":"2026-05-18T00:47:03.431643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:03.431643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Comparison of Grid-Based and SPH Binary Mass-Transfer and Merger Simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Christopher L Fryer, Geoffrey C Clayton, Jan Staff, Joel E Tohline, Juhan Frank, Patrick M Motl, Steven Diehl, Wesley Even","submitted_at":"2017-02-12T19:27:27Z","abstract_excerpt":"Currently there is great interest in the outcomes and astrophysical implications of mergers of double degenerate binaries. In a commonly adopted approximation, the components of such binaries are represented by polytropes with an index n=3/2. We present detailed comparisons of stellar mass-transfer and merger simulations of polytropic binaries that have been carried out using two very different numerical algorithms --- a finite-volume \"grid\" code and a smoothed-particle hydrodynamics (SPH) code. We find that there is agreement in both the ultimate outcomes of the evolutions and the intermediat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03562","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1702.03562","created_at":"2026-05-18T00:47:03.431702+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.03562v1","created_at":"2026-05-18T00:47:03.431702+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03562","created_at":"2026-05-18T00:47:03.431702+00:00"},{"alias_kind":"pith_short_12","alias_value":"L5SFMNC45FWQ","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_16","alias_value":"L5SFMNC45FWQJNT2","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_8","alias_value":"L5SFMNC4","created_at":"2026-05-18T12:31:28.150371+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6","json":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6.json","graph_json":"https://pith.science/api/pith-number/L5SFMNC45FWQJNT27MDFVMQQH6/graph.json","events_json":"https://pith.science/api/pith-number/L5SFMNC45FWQJNT27MDFVMQQH6/events.json","paper":"https://pith.science/paper/L5SFMNC4"},"agent_actions":{"view_html":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6","download_json":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6.json","view_paper":"https://pith.science/paper/L5SFMNC4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.03562&json=true","fetch_graph":"https://pith.science/api/pith-number/L5SFMNC45FWQJNT27MDFVMQQH6/graph.json","fetch_events":"https://pith.science/api/pith-number/L5SFMNC45FWQJNT27MDFVMQQH6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6/action/storage_attestation","attest_author":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6/action/author_attestation","sign_citation":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6/action/citation_signature","submit_replication":"https://pith.science/pith/L5SFMNC45FWQJNT27MDFVMQQH6/action/replication_record"}},"created_at":"2026-05-18T00:47:03.431702+00:00","updated_at":"2026-05-18T00:47:03.431702+00:00"}