{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VHISYRN7PSIH2HO5WKPQ53BHPE","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":"97085958c4340437901a931f126c6a0307686eeb98e9d967048dec8769eac4ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-20T11:41:25Z","title_canon_sha256":"911c62ce8ed0266f9b148db6d3446dcde789919745ec84f87f8d70cc630d9968"},"schema_version":"1.0","source":{"id":"1602.06398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06398","created_at":"2026-05-18T01:20:14Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06398v1","created_at":"2026-05-18T01:20:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06398","created_at":"2026-05-18T01:20:14Z"},{"alias_kind":"pith_short_12","alias_value":"VHISYRN7PSIH","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VHISYRN7PSIH2HO5","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VHISYRN7","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:234069d748dfab28bb045039422bac4dd6e015579cb2127781099acc6bd56de2","target":"graph","created_at":"2026-05-18T01:20:14Z","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":"The method of microcontact spectroscopy in the superconducting state was used to investigate weak nonlinearities of the current-voltage characteristics of point contacts made of $N{{b}_{3}}Sn$ single crystals. The nature of the spectrum of the electron-phonon interaction was found to vary considerably from contact to contact, indicating considerable deviations of the composition of the surface of $N{{b}_{3}}Sn$ from stoichiometry. A correlation was established between the nature of the spectrum and the magnitude of the gap singularities of the current-voltage characteristics. In the case of \"d","authors_text":"I. K. Yanson, L. F. Rybal'chenko, N. L. Bobrov, V. V. Fisun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-20T11:41:25Z","title":"Investigation of the electron-phonon interaction in $N{{b}_{3}}Sn$ with the aid of microcontacts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06398","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:db6faccaa4d4ab66997618cf196d3b4269abdd5f50b0cb43e53a148172c9755e","target":"record","created_at":"2026-05-18T01:20:14Z","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":"97085958c4340437901a931f126c6a0307686eeb98e9d967048dec8769eac4ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-20T11:41:25Z","title_canon_sha256":"911c62ce8ed0266f9b148db6d3446dcde789919745ec84f87f8d70cc630d9968"},"schema_version":"1.0","source":{"id":"1602.06398","kind":"arxiv","version":1}},"canonical_sha256":"a9d12c45bf7c907d1dddb29f0eec2779391da22503dbeff2d29ebc26f0918a03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9d12c45bf7c907d1dddb29f0eec2779391da22503dbeff2d29ebc26f0918a03","first_computed_at":"2026-05-18T01:20:14.133682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:14.133682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xCa1iA3gzrkNODa+weH6aQxZzhLBQxrKrZjJ3sqWXmQtiD0JkCNjAOvfw0YQrq4f68lA8Olv0Mc2nLZ+lOsyBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:14.134214Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db6faccaa4d4ab66997618cf196d3b4269abdd5f50b0cb43e53a148172c9755e","sha256:234069d748dfab28bb045039422bac4dd6e015579cb2127781099acc6bd56de2"],"state_sha256":"287122a35b53e22dd4220fb1563d21246b7fb2521655331687314b22bd40d821"}