{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HRCE6VERXS357GY7ODKBUQI4Q2","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":"bd7c7cafe80937adfd11a6427a7d264ca258da93250401f9250c99ef3b5fc0ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-09-15T08:41:51Z","title_canon_sha256":"ae3d3531fb5ada8f97ab2f8fa94a92279e7c5fe0d728f1514050b6eb5d4ac4d8"},"schema_version":"1.0","source":{"id":"1709.05104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.05104","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"arxiv_version","alias_value":"1709.05104v1","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.05104","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"pith_short_12","alias_value":"HRCE6VERXS35","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HRCE6VERXS357GY7","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HRCE6VER","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:63058e72d8d31df4011180ad734c4e4f7f08ea23c324100ebfef761bd65802e1","target":"graph","created_at":"2026-05-18T00:35:06Z","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 investigate the temperature dependence of the lower critical field $H_{c1}(T)$, the field at which vortices penetrate into the sample, of a high-quality fluorine-doped NdFeAsO single crystal under static magnetic fields $H$ parallel to the $c$-axis. The temperature dependence of the first vortex penetration field has been experimentally obtained and pronounced changes of the $H_{c1}$(T) curvature are observed, which is attributed to the multiband superconductivity. Using a two-band model with $s$-wave-like gaps, the temperature-dependence of the lower critical field $H_{c1}(T)$ can be well ","authors_text":"A. Adamski, C. Krellner, M. Abdel-Hafiez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-09-15T08:41:51Z","title":"Signature of multigap nodeless superconductivity in fluorine-doped NdFeAsO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.05104","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":"sha256:46b82063ddb59bcd8b051c1e8f7e9bd6b4a3902192a5547f450463c6f9610e56","target":"record","created_at":"2026-05-18T00:35:06Z","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":"bd7c7cafe80937adfd11a6427a7d264ca258da93250401f9250c99ef3b5fc0ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-09-15T08:41:51Z","title_canon_sha256":"ae3d3531fb5ada8f97ab2f8fa94a92279e7c5fe0d728f1514050b6eb5d4ac4d8"},"schema_version":"1.0","source":{"id":"1709.05104","kind":"arxiv","version":1}},"canonical_sha256":"3c444f5491bcb7df9b1f70d41a411c86a976f4ac79707d0243e3f9b8f66b0279","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c444f5491bcb7df9b1f70d41a411c86a976f4ac79707d0243e3f9b8f66b0279","first_computed_at":"2026-05-18T00:35:06.666036Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:06.666036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NgUe+cqm5kXt6H8up9ZOncnT2oY6Icpa2hkZTUgp1WcAZkaH/Zz/995iaX5GSUv9+sSuoCrfqtR7GCC9dOjsDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:06.666586Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.05104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46b82063ddb59bcd8b051c1e8f7e9bd6b4a3902192a5547f450463c6f9610e56","sha256:63058e72d8d31df4011180ad734c4e4f7f08ea23c324100ebfef761bd65802e1"],"state_sha256":"3f9bef2a505cdf7fb06650aa0c2e250c87e7493a38c1e94a8a76b8cb6f26d007"}