{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:6EJ6KCDT7JJ4KHZI3HDOR4B56S","short_pith_number":"pith:6EJ6KCDT","schema_version":"1.0","canonical_sha256":"f113e50873fa53c51f28d9c6e8f03df49f3903f74cbd1b812557c06322791d50","source":{"kind":"arxiv","id":"1206.6342","version":4},"attestation_state":"computed","paper":{"title":"Neutrino Helicity Reversal and Fundamental Symmetries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"B. J. Wundt, U. D. Jentschura","submitted_at":"2012-06-27T17:27:02Z","abstract_excerpt":"A rather elusive helicity reversal occurs in a gedanken experiment in which a massive left-handed Dirac neutrino, traveling at a velocity u < c, is overtaken on a highway by a speeding vehicle (traveling at velocity v with u < v < c). Namely, after passing the neutrino, looking back, one would see a right-handed neutrino (which has never been observed in nature). The Lorentz-invariant mass of the right-handed neutrino is still the same as before the passing. The gedanken experiment thus implies the existence of right-handed, light neutrinos, which are not completely sterile. Furthermore, overt"},"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":"1206.6342","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-06-27T17:27:02Z","cross_cats_sorted":[],"title_canon_sha256":"e11b1530fc55d1d8f3413102d8ffb399eaa68a7493632efbc773ebf5c9831d6a","abstract_canon_sha256":"ea415b905de9a2af5bb72db43d604e0f4db0ff3e495f66ed37b50b008951a28e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:53:56.499544Z","signature_b64":"hpEZRF0jElE2p1dPGQ7sIlFvagCAVfXq9b+9VdBLW/ecD4RKk76NT5K3oZw0sM50vhc+tQ7FV0AjnK0zFOneBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f113e50873fa53c51f28d9c6e8f03df49f3903f74cbd1b812557c06322791d50","last_reissued_at":"2026-05-18T02:53:56.498692Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:53:56.498692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Neutrino Helicity Reversal and Fundamental Symmetries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"B. J. Wundt, U. D. Jentschura","submitted_at":"2012-06-27T17:27:02Z","abstract_excerpt":"A rather elusive helicity reversal occurs in a gedanken experiment in which a massive left-handed Dirac neutrino, traveling at a velocity u < c, is overtaken on a highway by a speeding vehicle (traveling at velocity v with u < v < c). Namely, after passing the neutrino, looking back, one would see a right-handed neutrino (which has never been observed in nature). The Lorentz-invariant mass of the right-handed neutrino is still the same as before the passing. The gedanken experiment thus implies the existence of right-handed, light neutrinos, which are not completely sterile. Furthermore, overt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.6342","kind":"arxiv","version":4},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1206.6342","created_at":"2026-05-18T02:53:56.498840+00:00"},{"alias_kind":"arxiv_version","alias_value":"1206.6342v4","created_at":"2026-05-18T02:53:56.498840+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.6342","created_at":"2026-05-18T02:53:56.498840+00:00"},{"alias_kind":"pith_short_12","alias_value":"6EJ6KCDT7JJ4","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_16","alias_value":"6EJ6KCDT7JJ4KHZI","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_8","alias_value":"6EJ6KCDT","created_at":"2026-05-18T12:26:56.085431+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/6EJ6KCDT7JJ4KHZI3HDOR4B56S","json":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S.json","graph_json":"https://pith.science/api/pith-number/6EJ6KCDT7JJ4KHZI3HDOR4B56S/graph.json","events_json":"https://pith.science/api/pith-number/6EJ6KCDT7JJ4KHZI3HDOR4B56S/events.json","paper":"https://pith.science/paper/6EJ6KCDT"},"agent_actions":{"view_html":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S","download_json":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S.json","view_paper":"https://pith.science/paper/6EJ6KCDT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1206.6342&json=true","fetch_graph":"https://pith.science/api/pith-number/6EJ6KCDT7JJ4KHZI3HDOR4B56S/graph.json","fetch_events":"https://pith.science/api/pith-number/6EJ6KCDT7JJ4KHZI3HDOR4B56S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S/action/storage_attestation","attest_author":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S/action/author_attestation","sign_citation":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S/action/citation_signature","submit_replication":"https://pith.science/pith/6EJ6KCDT7JJ4KHZI3HDOR4B56S/action/replication_record"}},"created_at":"2026-05-18T02:53:56.498840+00:00","updated_at":"2026-05-18T02:53:56.498840+00:00"}