{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:IWOGS3DWJSYWWUSZ5TJYGZSGUX","short_pith_number":"pith:IWOGS3DW","canonical_record":{"source":{"id":"2202.01942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-02-04T02:09:38Z","cross_cats_sorted":[],"title_canon_sha256":"c6abebf2e4e2d3c9f7ccf5c8de79b571a78a490cf511b06efc20d82e73f83155","abstract_canon_sha256":"a8df9a60837a0ec589fe9a6f59c6acd675b68250ac0a5b09aa9768454cb662d3"},"schema_version":"1.0"},"canonical_sha256":"459c696c764cb16b5259ecd3836646a5ce1dfbf3ec5ccd88a7ea81c3356f1ddd","source":{"kind":"arxiv","id":"2202.01942","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.01942","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"arxiv_version","alias_value":"2202.01942v1","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.01942","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_12","alias_value":"IWOGS3DWJSYW","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_16","alias_value":"IWOGS3DWJSYWWUSZ","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_8","alias_value":"IWOGS3DW","created_at":"2026-07-05T04:33:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:IWOGS3DWJSYWWUSZ5TJYGZSGUX","target":"record","payload":{"canonical_record":{"source":{"id":"2202.01942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-02-04T02:09:38Z","cross_cats_sorted":[],"title_canon_sha256":"c6abebf2e4e2d3c9f7ccf5c8de79b571a78a490cf511b06efc20d82e73f83155","abstract_canon_sha256":"a8df9a60837a0ec589fe9a6f59c6acd675b68250ac0a5b09aa9768454cb662d3"},"schema_version":"1.0"},"canonical_sha256":"459c696c764cb16b5259ecd3836646a5ce1dfbf3ec5ccd88a7ea81c3356f1ddd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:29.983379Z","signature_b64":"L4WnrFv59GWgTxg5PQu5y8l8JNfTa57kcGeiZzcOLnbZ23es/8ltkoa1QprwsOPXg73G/a6m9YdNHWkNTMR7Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"459c696c764cb16b5259ecd3836646a5ce1dfbf3ec5ccd88a7ea81c3356f1ddd","last_reissued_at":"2026-07-05T04:33:29.982867Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:29.982867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.01942","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:33:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KKYTCPUEjBmuZCDvES9qX21mgIG70INBlwbYSEBffNzWZy2dVXGxuEC/IPJm3cT1C5o52PkIZUgBFN3ved5WDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:59:33.318595Z"},"content_sha256":"f8425a8a6bc6ec66675ba86dad12b0981eead0a5626124a7b6ef581a549055dc","schema_version":"1.0","event_id":"sha256:f8425a8a6bc6ec66675ba86dad12b0981eead0a5626124a7b6ef581a549055dc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:IWOGS3DWJSYWWUSZ5TJYGZSGUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Switchable Topological Phase Transition and Novel Nonlinear Optical Properties in ReC2H Monolayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Aijun Du, Chunmei Zhang, Hanqi Pi, Hongming Weng, Jian Zhou, Liqin Zhou, Si Li","submitted_at":"2022-02-04T02:09:38Z","abstract_excerpt":"Extensive investigations on topological phase transition (TPT) in three-dimensional compounds have been done. whereas, rare in two-dimensional systems, let alone noncentrosymmetric materials. In this work, based on first-principles calculations, we explore an inversion symmetry broken structural ReC2H monolayer. We reveal that it undergoes two TPTs, namely from normal insulator to Z2 topological insulator and back to normal insulator, at the critical biaxial strain of 2.3% and 7.8%, respectively. The band inversion occurs at the generic momentum in the first TPT, while at high symmetric K poin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.01942","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.01942/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:33:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IGyE2RxMM0G1jMP94OOlWHna+6scOzmtlfUj3Vkq/top4fFMRGUhtIEqBwF1LALWes4t+AR6J8GX6nbWkctKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:59:33.319109Z"},"content_sha256":"0c34502f2ab6bf23eae86ba3962d1abf9c05a254d1093948ad25721f7aa94384","schema_version":"1.0","event_id":"sha256:0c34502f2ab6bf23eae86ba3962d1abf9c05a254d1093948ad25721f7aa94384"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/bundle.json","state_url":"https://pith.science/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/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":"2026-08-19T22:59:33Z","links":{"resolver":"https://pith.science/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX","bundle":"https://pith.science/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/bundle.json","state":"https://pith.science/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IWOGS3DWJSYWWUSZ5TJYGZSGUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:IWOGS3DWJSYWWUSZ5TJYGZSGUX","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":"a8df9a60837a0ec589fe9a6f59c6acd675b68250ac0a5b09aa9768454cb662d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-02-04T02:09:38Z","title_canon_sha256":"c6abebf2e4e2d3c9f7ccf5c8de79b571a78a490cf511b06efc20d82e73f83155"},"schema_version":"1.0","source":{"id":"2202.01942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.01942","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"arxiv_version","alias_value":"2202.01942v1","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.01942","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_12","alias_value":"IWOGS3DWJSYW","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_16","alias_value":"IWOGS3DWJSYWWUSZ","created_at":"2026-07-05T04:33:29Z"},{"alias_kind":"pith_short_8","alias_value":"IWOGS3DW","created_at":"2026-07-05T04:33:29Z"}],"graph_snapshots":[{"event_id":"sha256:0c34502f2ab6bf23eae86ba3962d1abf9c05a254d1093948ad25721f7aa94384","target":"graph","created_at":"2026-07-05T04:33:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2202.01942/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Extensive investigations on topological phase transition (TPT) in three-dimensional compounds have been done. whereas, rare in two-dimensional systems, let alone noncentrosymmetric materials. In this work, based on first-principles calculations, we explore an inversion symmetry broken structural ReC2H monolayer. We reveal that it undergoes two TPTs, namely from normal insulator to Z2 topological insulator and back to normal insulator, at the critical biaxial strain of 2.3% and 7.8%, respectively. The band inversion occurs at the generic momentum in the first TPT, while at high symmetric K poin","authors_text":"Aijun Du, Chunmei Zhang, Hanqi Pi, Hongming Weng, Jian Zhou, Liqin Zhou, Si Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-02-04T02:09:38Z","title":"Switchable Topological Phase Transition and Novel Nonlinear Optical Properties in ReC2H Monolayer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.01942","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:f8425a8a6bc6ec66675ba86dad12b0981eead0a5626124a7b6ef581a549055dc","target":"record","created_at":"2026-07-05T04:33:29Z","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":"a8df9a60837a0ec589fe9a6f59c6acd675b68250ac0a5b09aa9768454cb662d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-02-04T02:09:38Z","title_canon_sha256":"c6abebf2e4e2d3c9f7ccf5c8de79b571a78a490cf511b06efc20d82e73f83155"},"schema_version":"1.0","source":{"id":"2202.01942","kind":"arxiv","version":1}},"canonical_sha256":"459c696c764cb16b5259ecd3836646a5ce1dfbf3ec5ccd88a7ea81c3356f1ddd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"459c696c764cb16b5259ecd3836646a5ce1dfbf3ec5ccd88a7ea81c3356f1ddd","first_computed_at":"2026-07-05T04:33:29.982867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:29.982867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L4WnrFv59GWgTxg5PQu5y8l8JNfTa57kcGeiZzcOLnbZ23es/8ltkoa1QprwsOPXg73G/a6m9YdNHWkNTMR7Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:29.983379Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.01942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8425a8a6bc6ec66675ba86dad12b0981eead0a5626124a7b6ef581a549055dc","sha256:0c34502f2ab6bf23eae86ba3962d1abf9c05a254d1093948ad25721f7aa94384"],"state_sha256":"0794a138197bcbf75a6f9859ebd4f5a7c9e3cc13a87cf6d98c45abc14127f954"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2KpsJ71mWSJu0EGogmkS0cQmG4e8QWSagrIxQVtOUr6QGH6ahymKwLWrE1mJIKSu3NGUTn1Cn4d6xxYgueltCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T22:59:33.323858Z","bundle_sha256":"745a4411a587d0fe2394c3725a6e3181045aa79592169f19e6d2a7ca25c56e0e"}}