{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:Z7623FCWJHC4NRCRRHZZE5WGYU","short_pith_number":"pith:Z7623FCW","canonical_record":{"source":{"id":"1902.06874","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-19T03:13:51Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"d728418ee26e6e19806fccccec3e16ed93fb2533c5d976a3450b7216f51f201c","abstract_canon_sha256":"8ba0a854ad6db4a05f7052e502d75933994e07ddf8a119af5fb5b31c3f603794"},"schema_version":"1.0"},"canonical_sha256":"cffdad945649c5c6c45189f39276c6c5035ba00cc153053db37188b377caa196","source":{"kind":"arxiv","id":"1902.06874","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06874","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06874v1","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06874","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"pith_short_12","alias_value":"Z7623FCWJHC4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z7623FCWJHC4NRCR","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z7623FCW","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:Z7623FCWJHC4NRCRRHZZE5WGYU","target":"record","payload":{"canonical_record":{"source":{"id":"1902.06874","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-19T03:13:51Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"d728418ee26e6e19806fccccec3e16ed93fb2533c5d976a3450b7216f51f201c","abstract_canon_sha256":"8ba0a854ad6db4a05f7052e502d75933994e07ddf8a119af5fb5b31c3f603794"},"schema_version":"1.0"},"canonical_sha256":"cffdad945649c5c6c45189f39276c6c5035ba00cc153053db37188b377caa196","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:40.649232Z","signature_b64":"mQ+XD/blCOx2wak1NDErhmq/iskoHi0hgPGx+CMHXyFLyqja5DfIZnOsiuPnUIgM+8RNGASTT8NFTfepfkImDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cffdad945649c5c6c45189f39276c6c5035ba00cc153053db37188b377caa196","last_reissued_at":"2026-05-17T23:50:40.648806Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:40.648806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.06874","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":"2026-05-17T23:50:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cnmc2k7uNNxTURJ9OQCX6ROjJL/fP8egqqGDz1JRQtYnzwaHAse8oYUvngJ/381T5SdVoQw/p3CWt9vwB0mdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:18:44.613096Z"},"content_sha256":"8faf15715139039ec087fd489ff131738ab49c7f29a8ff00379ed6f7a9479d91","schema_version":"1.0","event_id":"sha256:8faf15715139039ec087fd489ff131738ab49c7f29a8ff00379ed6f7a9479d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:Z7623FCWJHC4NRCRRHZZE5WGYU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental Progress on Layered Topological Semimetals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Dong Sun, Junchao Ma, Ke Deng, Lu Zheng, Sanfeng Wu, Shuyun Zhou, Zheng Liu","submitted_at":"2019-02-19T03:13:51Z","abstract_excerpt":"We review recent experimental progresses on layered topological materials, mainly focusing on transitional metal dichalcogenides with various lattice types including 1T, Td and 1T' structural phases. Their electronic quantum states are interestingly rich, and many appear to be topological nontrivial, such as Dirac/Weyl semimetallic phase in multilayers and quantum spin hall insulator phase in monolayers. The content covers recent major advances from material synthesis, basic characterizations, angle-resolved photoemission spectroscopy measurements, transport and optical responses. Following th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06874","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":""},"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":"2026-05-17T23:50:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KR428QqlaPeyK7IzIWO0Xa6GtwRB5zSASzxy4TR9X8pCzElyuDJ47dXIeiDbKq3ISmDkVVQ1dbfbp4+TuBSrCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:18:44.613759Z"},"content_sha256":"fd2c664c550fc6a4d37d025f7ab754a8bca26441eb0f308d8bbe7bc97441b260","schema_version":"1.0","event_id":"sha256:fd2c664c550fc6a4d37d025f7ab754a8bca26441eb0f308d8bbe7bc97441b260"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/bundle.json","state_url":"https://pith.science/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/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":"2026-05-31T08:18:44Z","links":{"resolver":"https://pith.science/pith/Z7623FCWJHC4NRCRRHZZE5WGYU","bundle":"https://pith.science/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/bundle.json","state":"https://pith.science/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z7623FCWJHC4NRCRRHZZE5WGYU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Z7623FCWJHC4NRCRRHZZE5WGYU","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":"8ba0a854ad6db4a05f7052e502d75933994e07ddf8a119af5fb5b31c3f603794","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-19T03:13:51Z","title_canon_sha256":"d728418ee26e6e19806fccccec3e16ed93fb2533c5d976a3450b7216f51f201c"},"schema_version":"1.0","source":{"id":"1902.06874","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06874","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06874v1","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06874","created_at":"2026-05-17T23:50:40Z"},{"alias_kind":"pith_short_12","alias_value":"Z7623FCWJHC4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z7623FCWJHC4NRCR","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z7623FCW","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:fd2c664c550fc6a4d37d025f7ab754a8bca26441eb0f308d8bbe7bc97441b260","target":"graph","created_at":"2026-05-17T23:50:40Z","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 review recent experimental progresses on layered topological materials, mainly focusing on transitional metal dichalcogenides with various lattice types including 1T, Td and 1T' structural phases. Their electronic quantum states are interestingly rich, and many appear to be topological nontrivial, such as Dirac/Weyl semimetallic phase in multilayers and quantum spin hall insulator phase in monolayers. The content covers recent major advances from material synthesis, basic characterizations, angle-resolved photoemission spectroscopy measurements, transport and optical responses. Following th","authors_text":"Dong Sun, Junchao Ma, Ke Deng, Lu Zheng, Sanfeng Wu, Shuyun Zhou, Zheng Liu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-19T03:13:51Z","title":"Experimental Progress on Layered Topological Semimetals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06874","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":"sha256:8faf15715139039ec087fd489ff131738ab49c7f29a8ff00379ed6f7a9479d91","target":"record","created_at":"2026-05-17T23:50:40Z","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":"8ba0a854ad6db4a05f7052e502d75933994e07ddf8a119af5fb5b31c3f603794","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-02-19T03:13:51Z","title_canon_sha256":"d728418ee26e6e19806fccccec3e16ed93fb2533c5d976a3450b7216f51f201c"},"schema_version":"1.0","source":{"id":"1902.06874","kind":"arxiv","version":1}},"canonical_sha256":"cffdad945649c5c6c45189f39276c6c5035ba00cc153053db37188b377caa196","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cffdad945649c5c6c45189f39276c6c5035ba00cc153053db37188b377caa196","first_computed_at":"2026-05-17T23:50:40.648806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:40.648806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mQ+XD/blCOx2wak1NDErhmq/iskoHi0hgPGx+CMHXyFLyqja5DfIZnOsiuPnUIgM+8RNGASTT8NFTfepfkImDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:40.649232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.06874","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8faf15715139039ec087fd489ff131738ab49c7f29a8ff00379ed6f7a9479d91","sha256:fd2c664c550fc6a4d37d025f7ab754a8bca26441eb0f308d8bbe7bc97441b260"],"state_sha256":"e52f615ff91a1a786d0cd54ec842016dd6af174a5488c8e7e90e22e65256c0f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJ0E7rNILvMAk+EbjQpm+la4ffElk5Cd+2ImdGvzhsyRsTZzMTSRm/FKhywaKZil8LTJeJgzXa0PjJLymTByCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T08:18:44.617296Z","bundle_sha256":"cb4642a8fe798242d1f287e2d4ca1e776b0988db63c4cb409285cfd974695ebe"}}