{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:TZYJ4MPCDPFWFEEGICN4UQ7FII","short_pith_number":"pith:TZYJ4MPC","schema_version":"1.0","canonical_sha256":"9e709e31e21bcb629086409bca43e54234ee6809835efde4db9e885666fb97ad","source":{"kind":"arxiv","id":"2504.20143","version":2},"attestation_state":"computed","paper":{"title":"Neutrino flavor instabilities in a binary neutron star merger remnant: Roles of a long-lived hypermassive neutron star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Hiroki Nagakura, Kohsuke Sumiyoshi, Masaru Shibata, Sho Fujibayashi, Yuichiro Sekiguchi","submitted_at":"2025-04-28T18:00:03Z","abstract_excerpt":"Understanding the post-merger evolution of binary neutron star merger (BNSM) requires accurate modeling of neutrino transport and microphysics including neutrino flavor conversions. Many previous studies have suggested that fast flavor instability (FFI) and collisional flavor instability (CFI) pervade inner regions of BNSM remnant, and they could impact on fluid dynamics and r-process nucleosynthesis. In this work, we re-examine prospects of occurrences of FFI and CFI using Boltzmann neutrino transport, assuming a frozen fluid background obtained from a numerical relativity simulation of BNSM."},"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":"2504.20143","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-28T18:00:03Z","cross_cats_sorted":["gr-qc","hep-ph","nucl-th"],"title_canon_sha256":"18c829b8a9a7ae7c094c698f3e2fd98fc9e04e7b61d302c82cc8a86245648745","abstract_canon_sha256":"0e416d6c3a8bc7fae3fc10cb83f76ee7e4f9cb5dd173f766742a05dae26aeafc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:43:11.569850Z","signature_b64":"1SexvCj9LSb8tPqr/Kc5sUfysfgrkdMf4d2LoBz0OoqvJM7LxYDTm+TKWKU3AVf2dCAIrUB5VhD0S4gW6l5KAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e709e31e21bcb629086409bca43e54234ee6809835efde4db9e885666fb97ad","last_reissued_at":"2026-07-05T11:43:11.569350Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:43:11.569350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Neutrino flavor instabilities in a binary neutron star merger remnant: Roles of a long-lived hypermassive neutron star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Hiroki Nagakura, Kohsuke Sumiyoshi, Masaru Shibata, Sho Fujibayashi, Yuichiro Sekiguchi","submitted_at":"2025-04-28T18:00:03Z","abstract_excerpt":"Understanding the post-merger evolution of binary neutron star merger (BNSM) requires accurate modeling of neutrino transport and microphysics including neutrino flavor conversions. Many previous studies have suggested that fast flavor instability (FFI) and collisional flavor instability (CFI) pervade inner regions of BNSM remnant, and they could impact on fluid dynamics and r-process nucleosynthesis. In this work, we re-examine prospects of occurrences of FFI and CFI using Boltzmann neutrino transport, assuming a frozen fluid background obtained from a numerical relativity simulation of BNSM."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20143","kind":"arxiv","version":2},"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/2504.20143/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":"2504.20143","created_at":"2026-07-05T11:43:11.569409+00:00"},{"alias_kind":"arxiv_version","alias_value":"2504.20143v2","created_at":"2026-07-05T11:43:11.569409+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20143","created_at":"2026-07-05T11:43:11.569409+00:00"},{"alias_kind":"pith_short_12","alias_value":"TZYJ4MPCDPFW","created_at":"2026-07-05T11:43:11.569409+00:00"},{"alias_kind":"pith_short_16","alias_value":"TZYJ4MPCDPFWFEEG","created_at":"2026-07-05T11:43:11.569409+00:00"},{"alias_kind":"pith_short_8","alias_value":"TZYJ4MPC","created_at":"2026-07-05T11:43:11.569409+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2507.02040","citing_title":"Many-Body Simulations of the Fast Flavor Instability","ref_index":25,"is_internal_anchor":false},{"citing_arxiv_id":"2605.10435","citing_title":"Dynamic Competition of Fast and Collisional Neutrino Flavor Instabilities with Collisional Damping in Spatially Inhomogeneous Systems","ref_index":48,"is_internal_anchor":false},{"citing_arxiv_id":"2604.06404","citing_title":"Neutrino transport and flavor instabilities in a post-merger disk","ref_index":81,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII","json":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII.json","graph_json":"https://pith.science/api/pith-number/TZYJ4MPCDPFWFEEGICN4UQ7FII/graph.json","events_json":"https://pith.science/api/pith-number/TZYJ4MPCDPFWFEEGICN4UQ7FII/events.json","paper":"https://pith.science/paper/TZYJ4MPC"},"agent_actions":{"view_html":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII","download_json":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII.json","view_paper":"https://pith.science/paper/TZYJ4MPC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2504.20143&json=true","fetch_graph":"https://pith.science/api/pith-number/TZYJ4MPCDPFWFEEGICN4UQ7FII/graph.json","fetch_events":"https://pith.science/api/pith-number/TZYJ4MPCDPFWFEEGICN4UQ7FII/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII/action/storage_attestation","attest_author":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII/action/author_attestation","sign_citation":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII/action/citation_signature","submit_replication":"https://pith.science/pith/TZYJ4MPCDPFWFEEGICN4UQ7FII/action/replication_record"}},"created_at":"2026-07-05T11:43:11.569409+00:00","updated_at":"2026-07-05T11:43:11.569409+00:00"}