{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:L4OXBWIL6IG3C6NQ2DOP5UACOR","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":"18c1889561a0082429214821e30c98e640c5c5306c01389e6ac8a6e5efd52b3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-12-10T17:56:23Z","title_canon_sha256":"2860f55fcac27e5cb238e9b8144a197987c5f2ba66e3e48daabbd1195ddf3a48"},"schema_version":"1.0","source":{"id":"1512.03346","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.03346","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"1512.03346v1","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.03346","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"L4OXBWIL6IG3","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"L4OXBWIL6IG3C6NQ","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"L4OXBWIL","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:81a5f75500bd1342a2a55ec32a2fc7ca7ec88a0c717061f56911cc3d70059d0d","target":"graph","created_at":"2026-05-18T01:20:32Z","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":"So far, several transition metal dichalcogenides (TMDCs) based two-dimensional (2D) topological insulators (TIs) have been discovered, all of them based on a tetragonal lattice. However, in 2D crystals, the hexagonal rather than the tetragonal symmetry is the most common motif. Here, based on first-principles calculations, we propose a new class of stable 2D TMDCs of composition MX2 (M=Mo, W, X=S, Se, Te) with a hexagonal lattice. They are all in the same stability range as other 2D TMDC allotropes that have been demonstrated experimentally, and they are identified to be practical 2D TIs with ","authors_text":"Liangzhi Kou, Thomas Heine, Xiao Li, Yandong Ma, Ying Dai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-12-10T17:56:23Z","title":"Two-Dimensional Transition Metal Dichalcogenides with a Hexagonal Lattice: Room Temperature Quantum Spin Hall Insulators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03346","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":"sha256:07f2b40307d765d38252031839c5d954adc74b58b5c729a98acaf91a6edb72cb","target":"record","created_at":"2026-05-18T01:20:32Z","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":"18c1889561a0082429214821e30c98e640c5c5306c01389e6ac8a6e5efd52b3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-12-10T17:56:23Z","title_canon_sha256":"2860f55fcac27e5cb238e9b8144a197987c5f2ba66e3e48daabbd1195ddf3a48"},"schema_version":"1.0","source":{"id":"1512.03346","kind":"arxiv","version":1}},"canonical_sha256":"5f1d70d90bf20db179b0d0dcfed0027446f003163822f8645adf0fa32a49af50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f1d70d90bf20db179b0d0dcfed0027446f003163822f8645adf0fa32a49af50","first_computed_at":"2026-05-18T01:20:32.777192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:32.777192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+DUiRdc1YbK2v2ccJBeaQPusTi9opii1QZ0CRiNIJ7gKXu3BU4QM8iA8POEkFxt7qSHJ8SCswhM90P+NRHAPBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:32.777556Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.03346","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07f2b40307d765d38252031839c5d954adc74b58b5c729a98acaf91a6edb72cb","sha256:81a5f75500bd1342a2a55ec32a2fc7ca7ec88a0c717061f56911cc3d70059d0d"],"state_sha256":"74e4f7770d19f209b73050b7ff23eaadf2b2b1d3b7ff97d3f0000243404e099e"}