{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:W3N6RFKERCBMYYLRCWY7NCQXMM","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":"4baa77668e5da0fc83d8f7f2daf17f26f091023c753c42aa0d3559d808a4ce08","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-12-07T19:22:13Z","title_canon_sha256":"709467e2ec0978e41419d10a3c07e2180e9b05365ec1e5289489a065d5e2caaf"},"schema_version":"1.0","source":{"id":"cond-mat/9912122","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9912122","created_at":"2026-07-04T16:13:42Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9912122v3","created_at":"2026-07-04T16:13:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9912122","created_at":"2026-07-04T16:13:42Z"},{"alias_kind":"pith_short_12","alias_value":"W3N6RFKERCBM","created_at":"2026-07-04T16:13:42Z"},{"alias_kind":"pith_short_16","alias_value":"W3N6RFKERCBMYYLR","created_at":"2026-07-04T16:13:42Z"},{"alias_kind":"pith_short_8","alias_value":"W3N6RFKE","created_at":"2026-07-04T16:13:42Z"}],"graph_snapshots":[{"event_id":"sha256:d2e59b8d5e7694cf4f396a8bc7702a7949533bc13e9ad1b15bd7e37aa26fa586","target":"graph","created_at":"2026-07-04T16:13:42Z","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/cond-mat/9912122/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The electrical transport properties of a bipolar InAs/GaSb system have been studied in magnetic field. The resistivity oscillates between insulating and metallic behaviour while the quantum Hall effect shows a digital character oscillating from 0 to 1 conducatance quantum e^2/h. The insulating behaviour is attributed to the formation of a total energy gap in the system. A novel looped edge state picture is proposed associated with the appearance of a voltage between Hall probes which is symmetric on magnetic field reversal.","authors_text":"B. Kardynal, D. K. Maude, D.M. Symons, J.C. Portal (MIFKF-CNRS Grenoble), K. Takashina, M. Lakrimi, N.J. Mason (Clarendon Lab, Oxford Univ.), R.J. Nicholas, S. Khym","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-12-07T19:22:13Z","title":"Metal-Insulator oscillations in a Two-dimensional Electron-Hole system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9912122","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":"sha256:204c05a5d05a50fffef936d3484b9f36dce1b110f09a5aa680079f6a2f1a49b9","target":"record","created_at":"2026-07-04T16:13:42Z","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":"4baa77668e5da0fc83d8f7f2daf17f26f091023c753c42aa0d3559d808a4ce08","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-12-07T19:22:13Z","title_canon_sha256":"709467e2ec0978e41419d10a3c07e2180e9b05365ec1e5289489a065d5e2caaf"},"schema_version":"1.0","source":{"id":"cond-mat/9912122","kind":"arxiv","version":3}},"canonical_sha256":"b6dbe895448882cc617115b1f68a17631dfdd5480d5687a1fa4e6910930c5693","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6dbe895448882cc617115b1f68a17631dfdd5480d5687a1fa4e6910930c5693","first_computed_at":"2026-07-04T16:13:42.819216Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:13:42.819216Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Vc4g5rIsm4RSXf3xpLS0u87P2zydd6lzCeI3lSD5GZcvFTTVxCJY3N/Nw3EXO5PQT8DENMDKZEHcDRfgL/2MCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:13:42.819650Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9912122","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:204c05a5d05a50fffef936d3484b9f36dce1b110f09a5aa680079f6a2f1a49b9","sha256:d2e59b8d5e7694cf4f396a8bc7702a7949533bc13e9ad1b15bd7e37aa26fa586"],"state_sha256":"e0ace67310e0d4e4f80e4c9fbb9bb7c50ddb7618944ff83402b78b628de7af7e"}