{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:UU3RBHHRKEHZHD6UDR3GUSPKW7","short_pith_number":"pith:UU3RBHHR","schema_version":"1.0","canonical_sha256":"a537109cf1510f938fd41c766a49eab7d5c7f922f1d9b961b6178a567ecf9733","source":{"kind":"arxiv","id":"2311.13842","version":2},"attestation_state":"computed","paper":{"title":"Fast neutrino-flavor swap in high-energy astrophysical environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Hiroki Nagakura, Masamichi Zaizen","submitted_at":"2023-11-23T08:03:47Z","abstract_excerpt":"We assert that non-linear features of fast neutrino-flavor conversion (FFC) can be qualitatively different between core-collapse supernovae (CCSNe) and binary neutron star mergers (BNSMs). This argument arises from recent global FFC simulations in BNSM, in which fast flavor swap (FFS) emerges in very narrow spatial regions, whereas neutrinos in CCSN tend to evolve towards flavor equipartition. In this {\\it Letter}, we provide the physical mechanism of FFS based on a colliding neutrino beam model. Neutrinos/antineutrinos can undergo FFS when they propagate in ambient neutrino gas that propagate"},"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":"2311.13842","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-23T08:03:47Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7ec8b5619829381ef65719b1aa218fc351ad4b9077d2af6ab6946ea7ad75dd8d","abstract_canon_sha256":"19cd61d3b2216e326881538fdd1245f2e41b53e808cc368c7306c7dcd6287bde"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:06:19.601692Z","signature_b64":"wuQ3eiZgdLHcPorduDL5OAvputgRymlxeDTyqUH913PXLeshLUmMFzCWlgxK2L39jxrzUHFTc51MWs2/r5z7Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a537109cf1510f938fd41c766a49eab7d5c7f922f1d9b961b6178a567ecf9733","last_reissued_at":"2026-07-05T11:06:19.601230Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:06:19.601230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fast neutrino-flavor swap in high-energy astrophysical environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Hiroki Nagakura, Masamichi Zaizen","submitted_at":"2023-11-23T08:03:47Z","abstract_excerpt":"We assert that non-linear features of fast neutrino-flavor conversion (FFC) can be qualitatively different between core-collapse supernovae (CCSNe) and binary neutron star mergers (BNSMs). This argument arises from recent global FFC simulations in BNSM, in which fast flavor swap (FFS) emerges in very narrow spatial regions, whereas neutrinos in CCSN tend to evolve towards flavor equipartition. In this {\\it Letter}, we provide the physical mechanism of FFS based on a colliding neutrino beam model. Neutrinos/antineutrinos can undergo FFS when they propagate in ambient neutrino gas that propagate"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.13842","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/2311.13842/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":"2311.13842","created_at":"2026-07-05T11:06:19.601288+00:00"},{"alias_kind":"arxiv_version","alias_value":"2311.13842v2","created_at":"2026-07-05T11:06:19.601288+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.13842","created_at":"2026-07-05T11:06:19.601288+00:00"},{"alias_kind":"pith_short_12","alias_value":"UU3RBHHRKEHZ","created_at":"2026-07-05T11:06:19.601288+00:00"},{"alias_kind":"pith_short_16","alias_value":"UU3RBHHRKEHZHD6U","created_at":"2026-07-05T11:06:19.601288+00:00"},{"alias_kind":"pith_short_8","alias_value":"UU3RBHHR","created_at":"2026-07-05T11:06:19.601288+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2501.14145","citing_title":"Resolution requirements for numerical modeling of neutrino quantum kinetics","ref_index":26,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7","json":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7.json","graph_json":"https://pith.science/api/pith-number/UU3RBHHRKEHZHD6UDR3GUSPKW7/graph.json","events_json":"https://pith.science/api/pith-number/UU3RBHHRKEHZHD6UDR3GUSPKW7/events.json","paper":"https://pith.science/paper/UU3RBHHR"},"agent_actions":{"view_html":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7","download_json":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7.json","view_paper":"https://pith.science/paper/UU3RBHHR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2311.13842&json=true","fetch_graph":"https://pith.science/api/pith-number/UU3RBHHRKEHZHD6UDR3GUSPKW7/graph.json","fetch_events":"https://pith.science/api/pith-number/UU3RBHHRKEHZHD6UDR3GUSPKW7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7/action/storage_attestation","attest_author":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7/action/author_attestation","sign_citation":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7/action/citation_signature","submit_replication":"https://pith.science/pith/UU3RBHHRKEHZHD6UDR3GUSPKW7/action/replication_record"}},"created_at":"2026-07-05T11:06:19.601288+00:00","updated_at":"2026-07-05T11:06:19.601288+00:00"}