{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:C5MRDH55AYLNVCKAJ25XQNNS6N","short_pith_number":"pith:C5MRDH55","schema_version":"1.0","canonical_sha256":"1759119fbd0616da89404ebb7835b2f36ba3faa1df3246733dcc60a3639b8312","source":{"kind":"arxiv","id":"astro-ph/9711132","version":2},"attestation_state":"computed","paper":{"title":"Supernova Neutrino Opacity from Nucleon-Nucleon Bremsstrahlung and Related Processes","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Georg Raffelt, Steen Hannestad","submitted_at":"1997-11-12T14:48:23Z","abstract_excerpt":"Elastic scattering on nucleons, \\nu N -> N \\nu, is the dominant supernova (SN) opacity source for \\mu and \\tau neutrinos. The dominant energy- and number-changing processes were thought to be \\nu e^- -> e^- \\nu and \\nu\\bar \\nu <-> e^+ e^- until Suzuki (1993) showed that the bremsstrahlung process \\nu\\bar \\nu NN <-> NN was actually more important. We find that for energy exchange, the related ``inelastic scattering process'' \\nu NN <-> NN \\nu is even more effective by about a factor of 10. A simple estimate implies that the \\nu_\\mu and \\nu_\\tau spectra emitted during the Kelvin-Helmholtz coolin"},"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/9711132","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-12T14:48:23Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"359b9233d266457a6bad9ae33bcb143bae2f0503479a95162c3b2c9c60d9ec0b","abstract_canon_sha256":"ea74ecfdedd72c835df479f954604ed6e166e0b7e717f078404a95387c6f897f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:03:22.703609Z","signature_b64":"pNbnkB68bwduCwHd5PJs9q1cT8bw8nt471IJaYNVQPYujVDNZgNVYgobT5U1zIcTRhXBWlYYLOAzdf/xJZUlCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1759119fbd0616da89404ebb7835b2f36ba3faa1df3246733dcc60a3639b8312","last_reissued_at":"2026-07-04T16:03:22.703232Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:03:22.703232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Supernova Neutrino Opacity from Nucleon-Nucleon Bremsstrahlung and Related Processes","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Georg Raffelt, Steen Hannestad","submitted_at":"1997-11-12T14:48:23Z","abstract_excerpt":"Elastic scattering on nucleons, \\nu N -> N \\nu, is the dominant supernova (SN) opacity source for \\mu and \\tau neutrinos. The dominant energy- and number-changing processes were thought to be \\nu e^- -> e^- \\nu and \\nu\\bar \\nu <-> e^+ e^- until Suzuki (1993) showed that the bremsstrahlung process \\nu\\bar \\nu NN <-> NN was actually more important. We find that for energy exchange, the related ``inelastic scattering process'' \\nu NN <-> NN \\nu is even more effective by about a factor of 10. A simple estimate implies that the \\nu_\\mu and \\nu_\\tau spectra emitted during the Kelvin-Helmholtz coolin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9711132","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/astro-ph/9711132/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/9711132","created_at":"2026-07-04T16:03:22.703292+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9711132v2","created_at":"2026-07-04T16:03:22.703292+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9711132","created_at":"2026-07-04T16:03:22.703292+00:00"},{"alias_kind":"pith_short_12","alias_value":"C5MRDH55AYLN","created_at":"2026-07-04T16:03:22.703292+00:00"},{"alias_kind":"pith_short_16","alias_value":"C5MRDH55AYLNVCKA","created_at":"2026-07-04T16:03:22.703292+00:00"},{"alias_kind":"pith_short_8","alias_value":"C5MRDH55","created_at":"2026-07-04T16:03:22.703292+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2604.01277","citing_title":"Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\\gamma$-ray Sky","ref_index":84,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N","json":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N.json","graph_json":"https://pith.science/api/pith-number/C5MRDH55AYLNVCKAJ25XQNNS6N/graph.json","events_json":"https://pith.science/api/pith-number/C5MRDH55AYLNVCKAJ25XQNNS6N/events.json","paper":"https://pith.science/paper/C5MRDH55"},"agent_actions":{"view_html":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N","download_json":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N.json","view_paper":"https://pith.science/paper/C5MRDH55","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9711132&json=true","fetch_graph":"https://pith.science/api/pith-number/C5MRDH55AYLNVCKAJ25XQNNS6N/graph.json","fetch_events":"https://pith.science/api/pith-number/C5MRDH55AYLNVCKAJ25XQNNS6N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N/action/storage_attestation","attest_author":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N/action/author_attestation","sign_citation":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N/action/citation_signature","submit_replication":"https://pith.science/pith/C5MRDH55AYLNVCKAJ25XQNNS6N/action/replication_record"}},"created_at":"2026-07-04T16:03:22.703292+00:00","updated_at":"2026-07-04T16:03:22.703292+00:00"}