{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:6E55LZ3EW4APUZ3OBSUQRE277T","short_pith_number":"pith:6E55LZ3E","schema_version":"1.0","canonical_sha256":"f13bd5e764b700fa676e0ca908935ffce16262d2797167b32c70b4e4ffd7e2ca","source":{"kind":"arxiv","id":"1703.10779","version":2},"attestation_state":"computed","paper":{"title":"First measeurements in search for keV-sterile neutrino in tritium beta-decay by Troitsk nu-mass experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"hep-ex","authors_text":"A.A. Golubev, A.A. Nozik, A.I. Belesev, A.K. Skasyrskaya, E.V. Geraskin, G.A. Koroteev, I.I. Tkachev, J.N. Abdurashitov, N.A. Likhovid, P.V. Grigorieva, S.V. Zadorozhny, V.G. Chernov, V.I. Parfenov, V.S. Pantuev","submitted_at":"2017-03-31T07:48:57Z","abstract_excerpt":"We present the first measurements of tritium beta-decay spectrum in the electron energy range 16-18.6 keV. The goal is to find distortions which may correspond to the presence of a heavy sterile neutrinos. A possible contribution of this kind would manifest itself as a kink in the spectrum with a similar shape but with end point shifted by the value of a heavy neutrino mass. We set a new upper limits to the neutrino mixing matrix element U^2_{e4} which improve existing limits by a factor from 2 to 5 in the mass range 0.1-2 keV."},"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":"1703.10779","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-03-31T07:48:57Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"24db36e9bf38ecbf12d561426551762e9d4e8d52d2d000a00c1112be4ef132c4","abstract_canon_sha256":"5fe336509cf64faaa893cd4e510858eaf24db247273d71eb3b45e5e359463776"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:36.003186Z","signature_b64":"R7b90z/lJn/jjWS7hBfbD484csyD1QfrOCQEexXjBnKXnXnAOMNOhY8m4dwTkxxRoJOx6HwVvxgA70cuGH2GCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f13bd5e764b700fa676e0ca908935ffce16262d2797167b32c70b4e4ffd7e2ca","last_reissued_at":"2026-05-18T00:41:36.002413Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:36.002413Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First measeurements in search for keV-sterile neutrino in tritium beta-decay by Troitsk nu-mass experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"hep-ex","authors_text":"A.A. Golubev, A.A. Nozik, A.I. Belesev, A.K. Skasyrskaya, E.V. Geraskin, G.A. Koroteev, I.I. Tkachev, J.N. Abdurashitov, N.A. Likhovid, P.V. Grigorieva, S.V. Zadorozhny, V.G. Chernov, V.I. Parfenov, V.S. Pantuev","submitted_at":"2017-03-31T07:48:57Z","abstract_excerpt":"We present the first measurements of tritium beta-decay spectrum in the electron energy range 16-18.6 keV. The goal is to find distortions which may correspond to the presence of a heavy sterile neutrinos. A possible contribution of this kind would manifest itself as a kink in the spectrum with a similar shape but with end point shifted by the value of a heavy neutrino mass. We set a new upper limits to the neutrino mixing matrix element U^2_{e4} which improve existing limits by a factor from 2 to 5 in the mass range 0.1-2 keV."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.10779","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":""},"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":"1703.10779","created_at":"2026-05-18T00:41:36.002541+00:00"},{"alias_kind":"arxiv_version","alias_value":"1703.10779v2","created_at":"2026-05-18T00:41:36.002541+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.10779","created_at":"2026-05-18T00:41:36.002541+00:00"},{"alias_kind":"pith_short_12","alias_value":"6E55LZ3EW4AP","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_16","alias_value":"6E55LZ3EW4APUZ3O","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_8","alias_value":"6E55LZ3E","created_at":"2026-05-18T12:31:03.183658+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/6E55LZ3EW4APUZ3OBSUQRE277T","json":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T.json","graph_json":"https://pith.science/api/pith-number/6E55LZ3EW4APUZ3OBSUQRE277T/graph.json","events_json":"https://pith.science/api/pith-number/6E55LZ3EW4APUZ3OBSUQRE277T/events.json","paper":"https://pith.science/paper/6E55LZ3E"},"agent_actions":{"view_html":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T","download_json":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T.json","view_paper":"https://pith.science/paper/6E55LZ3E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1703.10779&json=true","fetch_graph":"https://pith.science/api/pith-number/6E55LZ3EW4APUZ3OBSUQRE277T/graph.json","fetch_events":"https://pith.science/api/pith-number/6E55LZ3EW4APUZ3OBSUQRE277T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T/action/storage_attestation","attest_author":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T/action/author_attestation","sign_citation":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T/action/citation_signature","submit_replication":"https://pith.science/pith/6E55LZ3EW4APUZ3OBSUQRE277T/action/replication_record"}},"created_at":"2026-05-18T00:41:36.002541+00:00","updated_at":"2026-05-18T00:41:36.002541+00:00"}