{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:H2BIKUDHXPQNBKI6WRYYHRCEI7","short_pith_number":"pith:H2BIKUDH","canonical_record":{"source":{"id":"1909.02537","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-09-05T17:22:31Z","cross_cats_sorted":[],"title_canon_sha256":"7ae462a14c512fa9915a92622c3815194615ebceb42a90aefdb3d2681edd5d44","abstract_canon_sha256":"6b2e2287de68b84db5ce2506e22f06474022501448f58e6aa7be0a06cce8c705"},"schema_version":"1.0"},"canonical_sha256":"3e82855067bbe0d0a91eb47183c44447dbe259b219e3e6e4ee7adaa0ded50df9","source":{"kind":"arxiv","id":"1909.02537","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.02537","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"arxiv_version","alias_value":"1909.02537v2","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02537","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_12","alias_value":"H2BIKUDHXPQN","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_16","alias_value":"H2BIKUDHXPQNBKI6","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_8","alias_value":"H2BIKUDH","created_at":"2026-07-05T01:17:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:H2BIKUDHXPQNBKI6WRYYHRCEI7","target":"record","payload":{"canonical_record":{"source":{"id":"1909.02537","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-09-05T17:22:31Z","cross_cats_sorted":[],"title_canon_sha256":"7ae462a14c512fa9915a92622c3815194615ebceb42a90aefdb3d2681edd5d44","abstract_canon_sha256":"6b2e2287de68b84db5ce2506e22f06474022501448f58e6aa7be0a06cce8c705"},"schema_version":"1.0"},"canonical_sha256":"3e82855067bbe0d0a91eb47183c44447dbe259b219e3e6e4ee7adaa0ded50df9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:17:06.486735Z","signature_b64":"bdwIXdItz02xRlo/xT5Wrr4C4dNwOuvDgDEDA46F/o33es5bEXYoLRVUZUJ7a97OZ96Y7ICeCPovLsLPH7vuCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e82855067bbe0d0a91eb47183c44447dbe259b219e3e6e4ee7adaa0ded50df9","last_reissued_at":"2026-07-05T01:17:06.486266Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:17:06.486266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.02537","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:17:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qfj+is8CDgDB21jyrdDcSOzCrSygGb4jJZF3K/1aeoq50TmV7B0ZD5+sCs33sahlR42eRy3ta5rMJhlddVnkCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T16:35:00.274774Z"},"content_sha256":"586ae8e3bb264d19f53c30ac8e8118ed0ca8202465df7b16dd5590d72b5889af","schema_version":"1.0","event_id":"sha256:586ae8e3bb264d19f53c30ac8e8118ed0ca8202465df7b16dd5590d72b5889af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:H2BIKUDHXPQNBKI6WRYYHRCEI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence of Higher Order Topology in Multilayer WTe$_2$ from Josephson Coupling through Anisotropic Hinge States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Bum Joon Kim, Chui-Zhen Chen, Gil-Ho Lee, Hu-Jong Lee, Jiho Yoon, Jin-Ho Park, Jong-Hwan Kim, Kam Tuen Law, Kenji Watanabe, Kin Chung Fong, Mazhar N. Ali, Su-Beom Song, Takashi Taniguchi, Yingming Xie, Yong-Bin Choi","submitted_at":"2019-09-05T17:22:31Z","abstract_excerpt":"The noncentrosymmetric Td-WTe$_2$, previously known as a type-II Weyl semimetal, is expected to have higher order topological phases with topologically protected, helical one-dimensional (1D) hinge states when their scarcely separated Weyl points get annihilated. However, the detection of these hinge states is difficult in the presence of the semimetallic behaviour of the bulk. Here, we spatially resolved the hinge states by analysing the magnetic field interference of supercurrent in Nb-WTe$_2$-Nb proximity Josephson junctions. The Josephson current along the a-axis of the WTe$_2$ crystal, bu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02537","kind":"arxiv","version":2},"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/1909.02537/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":"2026-07-05T01:17:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nFTlBObHt79cU6u3sfJwIwAUyH7hRBhJCycSDDGHAFx8BIzapsgUjfYx/4cic7XfEQPOGRtJWoKK4s+KWq9LCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T16:35:00.275155Z"},"content_sha256":"c4bc493dfadbcbb5b03e940a2a39882646e401401bdb26ecd63a57fd96032278","schema_version":"1.0","event_id":"sha256:c4bc493dfadbcbb5b03e940a2a39882646e401401bdb26ecd63a57fd96032278"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/bundle.json","state_url":"https://pith.science/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/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":"2026-07-22T16:35:00Z","links":{"resolver":"https://pith.science/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7","bundle":"https://pith.science/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/bundle.json","state":"https://pith.science/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H2BIKUDHXPQNBKI6WRYYHRCEI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:H2BIKUDHXPQNBKI6WRYYHRCEI7","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":"6b2e2287de68b84db5ce2506e22f06474022501448f58e6aa7be0a06cce8c705","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-09-05T17:22:31Z","title_canon_sha256":"7ae462a14c512fa9915a92622c3815194615ebceb42a90aefdb3d2681edd5d44"},"schema_version":"1.0","source":{"id":"1909.02537","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.02537","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"arxiv_version","alias_value":"1909.02537v2","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02537","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_12","alias_value":"H2BIKUDHXPQN","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_16","alias_value":"H2BIKUDHXPQNBKI6","created_at":"2026-07-05T01:17:06Z"},{"alias_kind":"pith_short_8","alias_value":"H2BIKUDH","created_at":"2026-07-05T01:17:06Z"}],"graph_snapshots":[{"event_id":"sha256:c4bc493dfadbcbb5b03e940a2a39882646e401401bdb26ecd63a57fd96032278","target":"graph","created_at":"2026-07-05T01:17:06Z","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/1909.02537/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The noncentrosymmetric Td-WTe$_2$, previously known as a type-II Weyl semimetal, is expected to have higher order topological phases with topologically protected, helical one-dimensional (1D) hinge states when their scarcely separated Weyl points get annihilated. However, the detection of these hinge states is difficult in the presence of the semimetallic behaviour of the bulk. Here, we spatially resolved the hinge states by analysing the magnetic field interference of supercurrent in Nb-WTe$_2$-Nb proximity Josephson junctions. The Josephson current along the a-axis of the WTe$_2$ crystal, bu","authors_text":"Bum Joon Kim, Chui-Zhen Chen, Gil-Ho Lee, Hu-Jong Lee, Jiho Yoon, Jin-Ho Park, Jong-Hwan Kim, Kam Tuen Law, Kenji Watanabe, Kin Chung Fong, Mazhar N. Ali, Su-Beom Song, Takashi Taniguchi, Yingming Xie, Yong-Bin Choi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-09-05T17:22:31Z","title":"Evidence of Higher Order Topology in Multilayer WTe$_2$ from Josephson Coupling through Anisotropic Hinge States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02537","kind":"arxiv","version":2},"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":"sha256:586ae8e3bb264d19f53c30ac8e8118ed0ca8202465df7b16dd5590d72b5889af","target":"record","created_at":"2026-07-05T01:17:06Z","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":"6b2e2287de68b84db5ce2506e22f06474022501448f58e6aa7be0a06cce8c705","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-09-05T17:22:31Z","title_canon_sha256":"7ae462a14c512fa9915a92622c3815194615ebceb42a90aefdb3d2681edd5d44"},"schema_version":"1.0","source":{"id":"1909.02537","kind":"arxiv","version":2}},"canonical_sha256":"3e82855067bbe0d0a91eb47183c44447dbe259b219e3e6e4ee7adaa0ded50df9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e82855067bbe0d0a91eb47183c44447dbe259b219e3e6e4ee7adaa0ded50df9","first_computed_at":"2026-07-05T01:17:06.486266Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:17:06.486266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bdwIXdItz02xRlo/xT5Wrr4C4dNwOuvDgDEDA46F/o33es5bEXYoLRVUZUJ7a97OZ96Y7ICeCPovLsLPH7vuCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:17:06.486735Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.02537","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:586ae8e3bb264d19f53c30ac8e8118ed0ca8202465df7b16dd5590d72b5889af","sha256:c4bc493dfadbcbb5b03e940a2a39882646e401401bdb26ecd63a57fd96032278"],"state_sha256":"d1faec65486485af23c6379f9da69c69a9385334b3cd2328bb6c5adb1acf8c76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gyNEt2TYyzk8xj32aowm2NdSGPvxX8wpawoLguhWkhQYBnEfs5HJh7M2rpbYuNLNtHVlUDV2QfvNy05Vk6eABg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T16:35:00.277563Z","bundle_sha256":"409f9262c445e1199164949ef0da83a8f8a64b50df1d7d7511dd42b329640202"}}