{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4TE4Q5QV2PDPJU5IBSVH6JKA44","short_pith_number":"pith:4TE4Q5QV","canonical_record":{"source":{"id":"1303.0466","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-03T06:24:58Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"29c790e5f0c3d915005a1693e6c67b24941fe794ded21cd7a27c3986bdb526c3","abstract_canon_sha256":"b195924dab0e322a52fb0dd2f2f6778dfc1e7dd3cf78137974b664f2f73d71f8"},"schema_version":"1.0"},"canonical_sha256":"e4c9c87615d3c6f4d3a80caa7f2540e70cb294261fe46c8c8905ca722456d498","source":{"kind":"arxiv","id":"1303.0466","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"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4TE4Q5QV2PDPJU5IBSVH6JKA44","target":"record","payload":{"canonical_record":{"source":{"id":"1303.0466","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-03T06:24:58Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"29c790e5f0c3d915005a1693e6c67b24941fe794ded21cd7a27c3986bdb526c3","abstract_canon_sha256":"b195924dab0e322a52fb0dd2f2f6778dfc1e7dd3cf78137974b664f2f73d71f8"},"schema_version":"1.0"},"canonical_sha256":"e4c9c87615d3c6f4d3a80caa7f2540e70cb294261fe46c8c8905ca722456d498","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:11:21.693820Z","signature_b64":"dLQaoehe7Mq1ur1VGpsLr47HzroaLnasmSypHviEv3Ghii8F0xsQY1kbnJMyVxf8Drvk3FaPzUHvxPW6ClfgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4c9c87615d3c6f4d3a80caa7f2540e70cb294261fe46c8c8905ca722456d498","last_reissued_at":"2026-05-18T03:11:21.693102Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:11:21.693102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.0466","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:11:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fdd29foNBmoZ/figr6Xzm+PWAq7tsYcdYAqnZQac49QnPbCzm/0zVixdWtXoU6UBQvmaDodFxpwniHu34S/bAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:51:34.359353Z"},"content_sha256":"6750ef3c039e4930915998652dc5a5b7417e07854b2a1bf896e212534164fd62","schema_version":"1.0","event_id":"sha256:6750ef3c039e4930915998652dc5a5b7417e07854b2a1bf896e212534164fd62"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4TE4Q5QV2PDPJU5IBSVH6JKA44","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of the ghost critical field for superconducting fluctuations in a disordered TaN thin film","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"cond-mat.supr-con","authors_text":"Aharon Kapitulnik, Nicholas P. Breznay","submitted_at":"2013-03-03T06:24:58Z","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"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0466","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:11:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4svmwVALV3LFXVpy7dA4Py9gdDBuAd8465/5EYXIF+Mshvny8aTmhTw1CaafzjfK08JQZhNVl775oiNNzveBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:51:34.359824Z"},"content_sha256":"1849f74d7cc330fb0aa85a0162ba6ec7fdc0e98a27aeecb8356206e49ebc8122","schema_version":"1.0","event_id":"sha256:1849f74d7cc330fb0aa85a0162ba6ec7fdc0e98a27aeecb8356206e49ebc8122"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/bundle.json","state_url":"https://pith.science/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-03T06:51:34Z","links":{"resolver":"https://pith.science/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44","bundle":"https://pith.science/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/bundle.json","state":"https://pith.science/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4TE4Q5QV2PDPJU5IBSVH6JKA44/bundle.json"},"state":{"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"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s/vX2lZoCo17c3uWaMBznoDpd1jiObSED1bY4W1QdS5kUQ9WXXquFM3QjJvHWdf76hnWYtfkJBmNVCjeXVRNBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T06:51:34.363066Z","bundle_sha256":"4119ffb6d1d8c56895240c6f39ae0d6a5aa9a95cf029205675df0e41517c1053"}}