{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:RDO3UIUZK2DIK2XTPRNJEAZAXH","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":"ecb11453dfe27d3e56466e23cfda283407f65d74cadd09456e83feccb435dae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-04-23T17:58:40Z","title_canon_sha256":"cc05c2df49a114065182837e1b68a426cb8c9a665c436018dc207764284c71f7"},"schema_version":"1.0","source":{"id":"1504.06275","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.06275","created_at":"2026-05-18T01:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"1504.06275v3","created_at":"2026-05-18T01:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.06275","created_at":"2026-05-18T01:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"RDO3UIUZK2DI","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RDO3UIUZK2DIK2XT","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RDO3UIUZ","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:460e6c06749a194428f802f325fc0e350f872cca53862679fc0724db8ed3dc62","target":"graph","created_at":"2026-05-18T01:19:44Z","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":"Research on graphene and other two-dimensional (2D) materials, such as silicene, germanene, phosphorene, hexagonal boron nitride (h-BN), graphitic carbon nitride (g-C3N4), graphitic zinc oxide (g-ZnO) and molybdenum disulphide (MoS2), has recently received considerable interest owing to their outstanding properties and wide applications. Looking beyond this field, combining the electronic structures of 2D materials in ultrathin van der Waals heterojunctions has also emerged to widely study theoretically and experimentally to explore some new properties and potential applications beyond their s","authors_text":"Jinlong Yang, Wei Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-04-23T17:58:40Z","title":"First-principles study of two-dimensional van der Waals heterojunctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.06275","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:b919893f17760b2178d1aaac08e56caa69f930c0a2a62dc005d1dd1916efa440","target":"record","created_at":"2026-05-18T01:19:44Z","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":"ecb11453dfe27d3e56466e23cfda283407f65d74cadd09456e83feccb435dae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-04-23T17:58:40Z","title_canon_sha256":"cc05c2df49a114065182837e1b68a426cb8c9a665c436018dc207764284c71f7"},"schema_version":"1.0","source":{"id":"1504.06275","kind":"arxiv","version":3}},"canonical_sha256":"88ddba22995686856af37c5a920320b9e5ba813428c838a640a053cb0976b363","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88ddba22995686856af37c5a920320b9e5ba813428c838a640a053cb0976b363","first_computed_at":"2026-05-18T01:19:44.519918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:44.519918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rxR65Lr6y1Df3DSZWhPDWnhjxY+8Z2DZJzOF0/x5IZ9yG+W2lpF4ZjcfgGuWICmXAaiTqXKMXOPmeVpE3RR6Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:44.520390Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.06275","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b919893f17760b2178d1aaac08e56caa69f930c0a2a62dc005d1dd1916efa440","sha256:460e6c06749a194428f802f325fc0e350f872cca53862679fc0724db8ed3dc62"],"state_sha256":"75dbd276f8d02087ef9daa2a56f1714f873220e72dae5f4f02bf1943f8993c5b"}