{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:EOGNWCWF7YGG3XO4GOEPN762AK","short_pith_number":"pith:EOGNWCWF","canonical_record":{"source":{"id":"1411.3266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-11-12T18:11:49Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b692a854020af1d8c25e8c566233e4ba91c1696be8e460b641198a3b9043f621","abstract_canon_sha256":"c9183bcb6ce0a09202f12e82a0d704a271cccd29540de9a889f17ea9ab44df54"},"schema_version":"1.0"},"canonical_sha256":"238cdb0ac5fe0c6ddddc3388f6ffda0287de1534afb5a56f1688da6cccd8af59","source":{"kind":"arxiv","id":"1411.3266","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3266","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3266v1","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3266","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"pith_short_12","alias_value":"EOGNWCWF7YGG","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"EOGNWCWF7YGG3XO4","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"EOGNWCWF","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:EOGNWCWF7YGG3XO4GOEPN762AK","target":"record","payload":{"canonical_record":{"source":{"id":"1411.3266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-11-12T18:11:49Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b692a854020af1d8c25e8c566233e4ba91c1696be8e460b641198a3b9043f621","abstract_canon_sha256":"c9183bcb6ce0a09202f12e82a0d704a271cccd29540de9a889f17ea9ab44df54"},"schema_version":"1.0"},"canonical_sha256":"238cdb0ac5fe0c6ddddc3388f6ffda0287de1534afb5a56f1688da6cccd8af59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:31.163880Z","signature_b64":"QU4Xws9Wjk/oYNbKRLCwnLU5LtSP83MZhtsw9kQwQGa5S6j5PVmzLQIoZHabVg2yTFHdqfA2YRM50dVo4T8rBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"238cdb0ac5fe0c6ddddc3388f6ffda0287de1534afb5a56f1688da6cccd8af59","last_reissued_at":"2026-05-18T01:41:31.163153Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:31.163153Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.3266","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:41:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zNvXU67oEFcC7zh7VsFMcz4C39uqWWkdRvMdzaecx1jx6kzl3Zk62hgc/2MjmqmHEf+K4ZwtnD94cKAEkf3bDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:04:30.421273Z"},"content_sha256":"7fc95d46972714adae722230ce6c44c9424addd630d061d93a52426c45aaf79e","schema_version":"1.0","event_id":"sha256:7fc95d46972714adae722230ce6c44c9424addd630d061d93a52426c45aaf79e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:EOGNWCWF7YGG3XO4GOEPN762AK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutrino-pair bremsstrahlung from nucleon-$\\alpha$ versus nucleon-nucleon scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"nucl-th","authors_text":"Achim Schwenk, Rishi Sharma, Sonia Bacca","submitted_at":"2014-11-12T18:11:49Z","abstract_excerpt":"We study the impact of the nucleon-$\\alpha$ P-wave resonances on neutrino-pair bremsstrahlung. Because of the non-central spin-orbit interaction, these resonances lead to an enhanced contribution to the nucleon spin structure factor for temperatures $T \\lesssim 4$ MeV. If the $\\alpha$-particle fraction is significant and the temperature is in this range, this contribution is competitive with neutron-neutron bremsstrahlung. This may be relevant for neutrino production in core-collapse supernovae or other dense astrophysical environments. Similar enhancements are expected for resonant non-centra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3266","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:41:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EwD8lgO6Sk5lQHgJw470X7PIIjApKYTisHvcKXk//rRaJL5IyGac6rYi13QLWCmuppNkzcXwUYxL0v2t7G9eBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:04:30.422009Z"},"content_sha256":"a04cd6a67579cfa20eb3828154b4f96b97a086ff471a5c5fc901f22a32b290e5","schema_version":"1.0","event_id":"sha256:a04cd6a67579cfa20eb3828154b4f96b97a086ff471a5c5fc901f22a32b290e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EOGNWCWF7YGG3XO4GOEPN762AK/bundle.json","state_url":"https://pith.science/pith/EOGNWCWF7YGG3XO4GOEPN762AK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EOGNWCWF7YGG3XO4GOEPN762AK/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-10T07:04:30Z","links":{"resolver":"https://pith.science/pith/EOGNWCWF7YGG3XO4GOEPN762AK","bundle":"https://pith.science/pith/EOGNWCWF7YGG3XO4GOEPN762AK/bundle.json","state":"https://pith.science/pith/EOGNWCWF7YGG3XO4GOEPN762AK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EOGNWCWF7YGG3XO4GOEPN762AK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:EOGNWCWF7YGG3XO4GOEPN762AK","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c9183bcb6ce0a09202f12e82a0d704a271cccd29540de9a889f17ea9ab44df54","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-11-12T18:11:49Z","title_canon_sha256":"b692a854020af1d8c25e8c566233e4ba91c1696be8e460b641198a3b9043f621"},"schema_version":"1.0","source":{"id":"1411.3266","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3266","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3266v1","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3266","created_at":"2026-05-18T01:41:31Z"},{"alias_kind":"pith_short_12","alias_value":"EOGNWCWF7YGG","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"EOGNWCWF7YGG3XO4","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"EOGNWCWF","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:a04cd6a67579cfa20eb3828154b4f96b97a086ff471a5c5fc901f22a32b290e5","target":"graph","created_at":"2026-05-18T01:41:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We study the impact of the nucleon-$\\alpha$ P-wave resonances on neutrino-pair bremsstrahlung. Because of the non-central spin-orbit interaction, these resonances lead to an enhanced contribution to the nucleon spin structure factor for temperatures $T \\lesssim 4$ MeV. If the $\\alpha$-particle fraction is significant and the temperature is in this range, this contribution is competitive with neutron-neutron bremsstrahlung. This may be relevant for neutrino production in core-collapse supernovae or other dense astrophysical environments. Similar enhancements are expected for resonant non-centra","authors_text":"Achim Schwenk, Rishi Sharma, Sonia Bacca","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-11-12T18:11:49Z","title":"Neutrino-pair bremsstrahlung from nucleon-$\\alpha$ versus nucleon-nucleon scattering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3266","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:7fc95d46972714adae722230ce6c44c9424addd630d061d93a52426c45aaf79e","target":"record","created_at":"2026-05-18T01:41:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c9183bcb6ce0a09202f12e82a0d704a271cccd29540de9a889f17ea9ab44df54","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-11-12T18:11:49Z","title_canon_sha256":"b692a854020af1d8c25e8c566233e4ba91c1696be8e460b641198a3b9043f621"},"schema_version":"1.0","source":{"id":"1411.3266","kind":"arxiv","version":1}},"canonical_sha256":"238cdb0ac5fe0c6ddddc3388f6ffda0287de1534afb5a56f1688da6cccd8af59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"238cdb0ac5fe0c6ddddc3388f6ffda0287de1534afb5a56f1688da6cccd8af59","first_computed_at":"2026-05-18T01:41:31.163153Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:31.163153Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QU4Xws9Wjk/oYNbKRLCwnLU5LtSP83MZhtsw9kQwQGa5S6j5PVmzLQIoZHabVg2yTFHdqfA2YRM50dVo4T8rBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:31.163880Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.3266","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fc95d46972714adae722230ce6c44c9424addd630d061d93a52426c45aaf79e","sha256:a04cd6a67579cfa20eb3828154b4f96b97a086ff471a5c5fc901f22a32b290e5"],"state_sha256":"f3856f1e1c1c8c3a5cb4b3a4b8d2206867bcf5d3f773cb6d59bbe7995cfbf864"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aD7hgz/+R1zQVTPX6GNTOcYiiTzAlNmwdPOn/Crbi7IoFwPH4Rmnen8WMTlfTDrktbdY/AFLppr3KeQ2YuurDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T07:04:30.428856Z","bundle_sha256":"c550c385407d5a08da50c7368932177602ff8f451c27d6a8b2f19c00686f9c6e"}}