{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZOURZB6VHFRSUREITIVGFX72GD","short_pith_number":"pith:ZOURZB6V","canonical_record":{"source":{"id":"1411.6664","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-11-24T21:44:13Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"b2e11fb7c200a0dcaf17bc60bffa66877ac7c5e313a449e2b8c938e0b5e94d44","abstract_canon_sha256":"cae4be2dedcd46079413521eb52d8adadf4eca676183cb9c30be2a4cac4240f1"},"schema_version":"1.0"},"canonical_sha256":"cba91c87d539632a44889a2a62dffa30e523717f1dbc0a9df3b3dfb51666d296","source":{"kind":"arxiv","id":"1411.6664","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6664","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6664v2","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6664","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"pith_short_12","alias_value":"ZOURZB6VHFRS","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZOURZB6VHFRSUREI","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZOURZB6V","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZOURZB6VHFRSUREITIVGFX72GD","target":"record","payload":{"canonical_record":{"source":{"id":"1411.6664","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-11-24T21:44:13Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"b2e11fb7c200a0dcaf17bc60bffa66877ac7c5e313a449e2b8c938e0b5e94d44","abstract_canon_sha256":"cae4be2dedcd46079413521eb52d8adadf4eca676183cb9c30be2a4cac4240f1"},"schema_version":"1.0"},"canonical_sha256":"cba91c87d539632a44889a2a62dffa30e523717f1dbc0a9df3b3dfb51666d296","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:26.394771Z","signature_b64":"6zfug7HdKWJQUoThDg+sF49cDC4pf3ybHWKR9bbciiuiZxVbmSi2szEgB82EjMHR5iKLFY6s706EOI99549xCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cba91c87d539632a44889a2a62dffa30e523717f1dbc0a9df3b3dfb51666d296","last_reissued_at":"2026-05-18T01:20:26.394124Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:26.394124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.6664","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":"2026-05-18T01:20:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mx8FeOryFUOOBgnAak8OxYBTaNHGutTfbzClfDGdQLiJSPh0Oom/tvj8p8WtgoL0kV4sHLSjV0kxdoyp2MRMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:52:18.729555Z"},"content_sha256":"2d7fe9764b0e7cc3b5bd737f9f07315eda334ac0cb255a70cd39d10e51edd36a","schema_version":"1.0","event_id":"sha256:2d7fe9764b0e7cc3b5bd737f9f07315eda334ac0cb255a70cd39d10e51edd36a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZOURZB6VHFRSUREITIVGFX72GD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological p-n junctions in helical edge states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Disha Wadhawan, Poonam Mehta, Sourin Das","submitted_at":"2014-11-24T21:44:13Z","abstract_excerpt":"Quantum spin Hall effect is endowed with topologically protected edge modes with gapless Dirac spectrum. Applying a magnetic field locally along the edge leads to a gapped edge spectrum with opposite parity for winding of spin texture for conduction and valence band. Using Pancharatnam's prescription for geometric phase it is shown that mismatch of this parity across a $p$-$n$ junction, which could be engineered into the edge by electrical gate induced doping, leads to a phase dependence in the two-terminal conductance which is purely topological (0 or $\\pi$). This fact results in a ${\\mathbb{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6664","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":""},"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":"2026-05-18T01:20:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bve18TIZSfVaFAPj4USR32sOsopse83gB536n7p8GC2Wrg13EExPD/bmKyT9xwvBe7fg/jST+07XEX8mZwSODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:52:18.730152Z"},"content_sha256":"c1b5d31d3552a00dba4f5eddae82a12b27e12c53390c79e375dbe4ee09395a22","schema_version":"1.0","event_id":"sha256:c1b5d31d3552a00dba4f5eddae82a12b27e12c53390c79e375dbe4ee09395a22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZOURZB6VHFRSUREITIVGFX72GD/bundle.json","state_url":"https://pith.science/pith/ZOURZB6VHFRSUREITIVGFX72GD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZOURZB6VHFRSUREITIVGFX72GD/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":"2026-05-30T11:52:18Z","links":{"resolver":"https://pith.science/pith/ZOURZB6VHFRSUREITIVGFX72GD","bundle":"https://pith.science/pith/ZOURZB6VHFRSUREITIVGFX72GD/bundle.json","state":"https://pith.science/pith/ZOURZB6VHFRSUREITIVGFX72GD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZOURZB6VHFRSUREITIVGFX72GD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZOURZB6VHFRSUREITIVGFX72GD","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":"cae4be2dedcd46079413521eb52d8adadf4eca676183cb9c30be2a4cac4240f1","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-11-24T21:44:13Z","title_canon_sha256":"b2e11fb7c200a0dcaf17bc60bffa66877ac7c5e313a449e2b8c938e0b5e94d44"},"schema_version":"1.0","source":{"id":"1411.6664","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6664","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6664v2","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6664","created_at":"2026-05-18T01:20:26Z"},{"alias_kind":"pith_short_12","alias_value":"ZOURZB6VHFRS","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZOURZB6VHFRSUREI","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZOURZB6V","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:c1b5d31d3552a00dba4f5eddae82a12b27e12c53390c79e375dbe4ee09395a22","target":"graph","created_at":"2026-05-18T01:20:26Z","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":"Quantum spin Hall effect is endowed with topologically protected edge modes with gapless Dirac spectrum. Applying a magnetic field locally along the edge leads to a gapped edge spectrum with opposite parity for winding of spin texture for conduction and valence band. Using Pancharatnam's prescription for geometric phase it is shown that mismatch of this parity across a $p$-$n$ junction, which could be engineered into the edge by electrical gate induced doping, leads to a phase dependence in the two-terminal conductance which is purely topological (0 or $\\pi$). This fact results in a ${\\mathbb{","authors_text":"Disha Wadhawan, Poonam Mehta, Sourin Das","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-11-24T21:44:13Z","title":"Topological p-n junctions in helical edge states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6664","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":"sha256:2d7fe9764b0e7cc3b5bd737f9f07315eda334ac0cb255a70cd39d10e51edd36a","target":"record","created_at":"2026-05-18T01:20:26Z","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":"cae4be2dedcd46079413521eb52d8adadf4eca676183cb9c30be2a4cac4240f1","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-11-24T21:44:13Z","title_canon_sha256":"b2e11fb7c200a0dcaf17bc60bffa66877ac7c5e313a449e2b8c938e0b5e94d44"},"schema_version":"1.0","source":{"id":"1411.6664","kind":"arxiv","version":2}},"canonical_sha256":"cba91c87d539632a44889a2a62dffa30e523717f1dbc0a9df3b3dfb51666d296","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cba91c87d539632a44889a2a62dffa30e523717f1dbc0a9df3b3dfb51666d296","first_computed_at":"2026-05-18T01:20:26.394124Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:26.394124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6zfug7HdKWJQUoThDg+sF49cDC4pf3ybHWKR9bbciiuiZxVbmSi2szEgB82EjMHR5iKLFY6s706EOI99549xCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:26.394771Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.6664","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d7fe9764b0e7cc3b5bd737f9f07315eda334ac0cb255a70cd39d10e51edd36a","sha256:c1b5d31d3552a00dba4f5eddae82a12b27e12c53390c79e375dbe4ee09395a22"],"state_sha256":"6a7450aa4da47614f20940e42ba65fd95b9fe201b34171c3afe2f5c81d4bf4bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+NfKdarSMi96R76K7mw9YVUp+HF/2QO9GOeRYfs6+JnipMHFbsACp0iEUulgUNykF9RtzLD6Gn42oVeb3e8YCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:52:18.733106Z","bundle_sha256":"6cdf1f0a5b1443e4a552326058cc5c1570a16172da7f74fd079f959d87c785a1"}}