{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1994:X4V6SEC7BZYEWDBVXSQ5AEYJFP","short_pith_number":"pith:X4V6SEC7","schema_version":"1.0","canonical_sha256":"bf2be9105f0e704b0c35bca1d013092be0b53d419dd283d564b7ec236d6e37ca","source":{"kind":"arxiv","id":"astro-ph/9401032","version":1},"attestation_state":"computed","paper":{"title":"Merging Neutron Stars I: Initial Results for Coalescence of Non-Corotating Systems","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"F. K. Thielemann, M. B. Davies, T. Piran, W. Benz","submitted_at":"1994-01-17T20:27:35Z","abstract_excerpt":"We present 3D Newtonian simulations of the coalescence of two neutron stars, using a Smoothed Particle Hydrodynamics (SPH) code. We begin the simulations with the two stars in a hard, circular binary, and have them spiral together as angular momentum is lost through gravitational radiation at the rate predicted by modeling the system as two point masses. We model the neutron stars as hard polytropes ($\\gamma=2.4$) of equal mass, and investigate the effect of the initial spin of the two stars on the coalescence. The process of coalescence, from initial contact to the formation of an axially sym"},"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":"astro-ph/9401032","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1994-01-17T20:27:35Z","cross_cats_sorted":[],"title_canon_sha256":"95125f52c1c7698c18c0790fd298ca51b4340c5083eea4547c1921b9067a3093","abstract_canon_sha256":"9f3e23b75656d61fd52b607202d7cd29c1356eaa409442c72d068b2e85984a31"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:56:02.974936Z","signature_b64":"kiWmNOOc7S9JktAQ606YCcn5RaSWsHXc0B4P7L53Fz0ptuOjdEhx1ekv5JDD03qXZ5cl4UhP+e0QITOJAGOVCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf2be9105f0e704b0c35bca1d013092be0b53d419dd283d564b7ec236d6e37ca","last_reissued_at":"2026-07-04T15:56:02.974544Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:56:02.974544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Merging Neutron Stars I: Initial Results for Coalescence of Non-Corotating Systems","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"F. K. Thielemann, M. B. Davies, T. Piran, W. Benz","submitted_at":"1994-01-17T20:27:35Z","abstract_excerpt":"We present 3D Newtonian simulations of the coalescence of two neutron stars, using a Smoothed Particle Hydrodynamics (SPH) code. We begin the simulations with the two stars in a hard, circular binary, and have them spiral together as angular momentum is lost through gravitational radiation at the rate predicted by modeling the system as two point masses. We model the neutron stars as hard polytropes ($\\gamma=2.4$) of equal mass, and investigate the effect of the initial spin of the two stars on the coalescence. The process of coalescence, from initial contact to the formation of an axially sym"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9401032","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9401032/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/9401032","created_at":"2026-07-04T15:56:02.974606+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9401032v1","created_at":"2026-07-04T15:56:02.974606+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9401032","created_at":"2026-07-04T15:56:02.974606+00:00"},{"alias_kind":"pith_short_12","alias_value":"X4V6SEC7BZYE","created_at":"2026-07-04T15:56:02.974606+00:00"},{"alias_kind":"pith_short_16","alias_value":"X4V6SEC7BZYEWDBV","created_at":"2026-07-04T15:56:02.974606+00:00"},{"alias_kind":"pith_short_8","alias_value":"X4V6SEC7","created_at":"2026-07-04T15:56:02.974606+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/X4V6SEC7BZYEWDBVXSQ5AEYJFP","json":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP.json","graph_json":"https://pith.science/api/pith-number/X4V6SEC7BZYEWDBVXSQ5AEYJFP/graph.json","events_json":"https://pith.science/api/pith-number/X4V6SEC7BZYEWDBVXSQ5AEYJFP/events.json","paper":"https://pith.science/paper/X4V6SEC7"},"agent_actions":{"view_html":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP","download_json":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP.json","view_paper":"https://pith.science/paper/X4V6SEC7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9401032&json=true","fetch_graph":"https://pith.science/api/pith-number/X4V6SEC7BZYEWDBVXSQ5AEYJFP/graph.json","fetch_events":"https://pith.science/api/pith-number/X4V6SEC7BZYEWDBVXSQ5AEYJFP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP/action/storage_attestation","attest_author":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP/action/author_attestation","sign_citation":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP/action/citation_signature","submit_replication":"https://pith.science/pith/X4V6SEC7BZYEWDBVXSQ5AEYJFP/action/replication_record"}},"created_at":"2026-07-04T15:56:02.974606+00:00","updated_at":"2026-07-04T15:56:02.974606+00:00"}