{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4TE4Q5QV2PDPJU5IBSVH6JKA44","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":"b195924dab0e322a52fb0dd2f2f6778dfc1e7dd3cf78137974b664f2f73d71f8","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-03T06:24:58Z","title_canon_sha256":"29c790e5f0c3d915005a1693e6c67b24941fe794ded21cd7a27c3986bdb526c3"},"schema_version":"1.0","source":{"id":"1303.0466","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.0466","created_at":"2026-05-18T03:11:21Z"},{"alias_kind":"arxiv_version","alias_value":"1303.0466v2","created_at":"2026-05-18T03:11:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.0466","created_at":"2026-05-18T03:11:21Z"},{"alias_kind":"pith_short_12","alias_value":"4TE4Q5QV2PDP","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4TE4Q5QV2PDPJU5I","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4TE4Q5QV","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:1849f74d7cc330fb0aa85a0162ba6ec7fdc0e98a27aeecb8356206e49ebc8122","target":"graph","created_at":"2026-05-18T03:11:21Z","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 experimentally study the ghost critical field (GCF), a magnetic field scale for the suppression of superconducting fluctuations, using Hall effect and magnetoresistance measurements on a disordered superconducting thin film near its transition temperature $T_c$. We observe an increase in the Hall effect with a maximum in field that tracks the upper critical field below $T_c$, vanishes near $T_c$, and returns to higher fields above $T_c$. Such a maximum has been observed in studies of the Nernst effect and identified as the GCF. Magnetoresistance measurements near $T_c$ indicate quenching of","authors_text":"Aharon Kapitulnik, Nicholas P. Breznay","cross_cats":["cond-mat.dis-nn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-03T06:24:58Z","title":"Observation of the ghost critical field for superconducting fluctuations in a disordered TaN thin film"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0466","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":"sha256:6750ef3c039e4930915998652dc5a5b7417e07854b2a1bf896e212534164fd62","target":"record","created_at":"2026-05-18T03:11:21Z","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":"b195924dab0e322a52fb0dd2f2f6778dfc1e7dd3cf78137974b664f2f73d71f8","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-03T06:24:58Z","title_canon_sha256":"29c790e5f0c3d915005a1693e6c67b24941fe794ded21cd7a27c3986bdb526c3"},"schema_version":"1.0","source":{"id":"1303.0466","kind":"arxiv","version":2}},"canonical_sha256":"e4c9c87615d3c6f4d3a80caa7f2540e70cb294261fe46c8c8905ca722456d498","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4c9c87615d3c6f4d3a80caa7f2540e70cb294261fe46c8c8905ca722456d498","first_computed_at":"2026-05-18T03:11:21.693102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:21.693102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dLQaoehe7Mq1ur1VGpsLr47HzroaLnasmSypHviEv3Ghii8F0xsQY1kbnJMyVxf8Drvk3FaPzUHvxPW6ClfgDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:21.693820Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.0466","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6750ef3c039e4930915998652dc5a5b7417e07854b2a1bf896e212534164fd62","sha256:1849f74d7cc330fb0aa85a0162ba6ec7fdc0e98a27aeecb8356206e49ebc8122"],"state_sha256":"e9b33f7ef8ce084273b4b9388af1f72de97a418bea3d4ad66e11d6cddc47debb"}