{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QSDMFZXFNXG2TI62PVE7AI2AOH","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":"594488dc735eaa99531f252345f537e14f6a778b664bd948dc8380f0f67ee398","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-03-24T12:50:28Z","title_canon_sha256":"402f1b58bfa77fe720433493eb58124aa0b6c080b35cd2bb812b8f986fe88c92"},"schema_version":"1.0","source":{"id":"1403.5936","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5936","created_at":"2026-05-18T01:59:58Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5936v3","created_at":"2026-05-18T01:59:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5936","created_at":"2026-05-18T01:59:58Z"},{"alias_kind":"pith_short_12","alias_value":"QSDMFZXFNXG2","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QSDMFZXFNXG2TI62","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QSDMFZXF","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:5a05d8ccb6f211df39f1c55848161c9c9d2e84d7f05c83ebb8fb132364b34d25","target":"graph","created_at":"2026-05-18T01:59:58Z","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 recent observation of superconducting state at atomic scale has motivated the pursuit of exotic condensed phases in two-dimensional (2D) systems. Here we report on a superconducting phase in two-monolayer crystalline Ga films epitaxially grown on wide band-gap semiconductor GaN(0001). This phase exhibits a hexagonal structure and only 0.552 nm in thickness, nevertheless, brings about a superconducting transition temperature Tc as high as 5.4 K, confirmed by in situ scanning tunneling spectroscopy, and ex situ electrical magneto-transport and magnetization measurements. The anisotropy of cr","authors_text":"Can-Li Song, Huimin Zhang, Hui Yang, Jianping Liu, Jian Wang, Jiaqi Guan, Junping Peng, Ke He, Langsheng Ling, Lian Li, Lili Wang, Lin Gu, Mingliang Tian, Qi-Kun Xue, Qinghua Zhang, Shuaihua Ji, Wei Li, X. C. Xie, Xi Chen, Xucun Ma, Yanfei Zhao, Ying Xing, Yi Sun, Zhi Li","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-03-24T12:50:28Z","title":"Detection of a superconducting phase in a two-atom layer of hexagonal Ga film grown on semiconducting GaN(0001)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5936","kind":"arxiv","version":3},"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":"sha256:927fd827967495ff0331781d30ff2b8f24d8e0f8acaff5bdf350f493e4c7c000","target":"record","created_at":"2026-05-18T01:59:58Z","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":"594488dc735eaa99531f252345f537e14f6a778b664bd948dc8380f0f67ee398","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-03-24T12:50:28Z","title_canon_sha256":"402f1b58bfa77fe720433493eb58124aa0b6c080b35cd2bb812b8f986fe88c92"},"schema_version":"1.0","source":{"id":"1403.5936","kind":"arxiv","version":3}},"canonical_sha256":"8486c2e6e56dcda9a3da7d49f0234071dbc10e361ca0fb90f1ac4f4e6779fb9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8486c2e6e56dcda9a3da7d49f0234071dbc10e361ca0fb90f1ac4f4e6779fb9d","first_computed_at":"2026-05-18T01:59:58.715962Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:58.715962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WzVw7RjbvILbCMCjostaY0ZYFl979dycc0DWIJVFxzyIw9Cc82Svtzah0P/ElfKRR8lTXU/+7yJJ7deRUdcgDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:58.716494Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5936","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:927fd827967495ff0331781d30ff2b8f24d8e0f8acaff5bdf350f493e4c7c000","sha256:5a05d8ccb6f211df39f1c55848161c9c9d2e84d7f05c83ebb8fb132364b34d25"],"state_sha256":"c6234f9a4c1db2b2589660794b3a29b707503a183f5550aa691fafcdc51d1e3d"}