{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JVSKIQUFTNZEWXKCQURA6KN337","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":"c3af2059db86c5c53f71a9c47fa7ae462380883ec082a4c846d8c2298f2ad239","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-11-15T18:34:03Z","title_canon_sha256":"4dd29fd6e29d3963eb790db69d07e1afe0447050dd455c50972dbfc0d54da5ab"},"schema_version":"1.0","source":{"id":"1711.05718","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.05718","created_at":"2026-05-18T00:23:29Z"},{"alias_kind":"arxiv_version","alias_value":"1711.05718v2","created_at":"2026-05-18T00:23:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.05718","created_at":"2026-05-18T00:23:29Z"},{"alias_kind":"pith_short_12","alias_value":"JVSKIQUFTNZE","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JVSKIQUFTNZEWXKC","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JVSKIQUF","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:95f54157c09b9c9b96f3511174eb4aefc77c30c2c62b057b93cf0deaf958adad","target":"graph","created_at":"2026-05-18T00:23:29Z","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":"Josephson current between two superconductors provides a phase sensitive tool for probing their pairing symmetries. Here we fabricate and study experimentally high-quality Josephson junctions between a conventional s-wave superconductor Nb and a multi-band iron-pnictide Ba$_{1-x}$Na$_x$Fe$_2$As$_2$. Junctions exhibit a large enough critical current density to preclude the d-wave symmetry of the order parameter in the pnictide. However, the $I_cR_n$ product is very small $\\simeq 3~\\mu$V, which is not consistent with the sign-preserving $s_{++}$ symmetry either. We argue that the small $I_cR_n$ ","authors_text":"A. A. Kalenyuk, A. A. Kordyuk, A. Pagliero, E.A. Borodianskyi, V. M. Krasnov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-11-15T18:34:03Z","title":"Phase-sensitive evidence for the sign-reversal s+- symmetry of the order parameter in an iron-pnictide superconductor using Nb/Ba1-xNaxFe2As2 Josephson junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.05718","kind":"arxiv","version":2},"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":"sha256:6c7d177050ff17e512de34fe0f7dea37fc68da0db25ad0924380805f85ecd536","target":"record","created_at":"2026-05-18T00:23:29Z","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":"c3af2059db86c5c53f71a9c47fa7ae462380883ec082a4c846d8c2298f2ad239","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-11-15T18:34:03Z","title_canon_sha256":"4dd29fd6e29d3963eb790db69d07e1afe0447050dd455c50972dbfc0d54da5ab"},"schema_version":"1.0","source":{"id":"1711.05718","kind":"arxiv","version":2}},"canonical_sha256":"4d64a442859b724b5d4285220f29bbdfc6b9522decbae0b6c07b7fff749c2f87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d64a442859b724b5d4285220f29bbdfc6b9522decbae0b6c07b7fff749c2f87","first_computed_at":"2026-05-18T00:23:29.404334Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:29.404334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N/t8i0QrutdpGY7q++M5+4Bf3Y2ivTg4OII9rsw9SV5BePHZ4ZwqlWs3D6O2FvUmHwVLLPe/agr8YjcQiSMPCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:29.404956Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.05718","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c7d177050ff17e512de34fe0f7dea37fc68da0db25ad0924380805f85ecd536","sha256:95f54157c09b9c9b96f3511174eb4aefc77c30c2c62b057b93cf0deaf958adad"],"state_sha256":"a2b386ea37fa604429bfb2185398617ecc3f9807285a072943b601ad51f01aba"}