{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:4OXLFLA6JC5PTFA4IFED6Q7CL3","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":"bec095cfe6295d5af3263a99c4c658155d90850dac85e9732f391c0c74d35491","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-03-30T21:26:44Z","title_canon_sha256":"9008786082c12ac54157a0190b311fdd86f4db39a3b6effad2ed69561e871f72"},"schema_version":"1.0","source":{"id":"cond-mat/9903435","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9903435","created_at":"2026-07-04T16:12:32Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9903435v1","created_at":"2026-07-04T16:12:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9903435","created_at":"2026-07-04T16:12:32Z"},{"alias_kind":"pith_short_12","alias_value":"4OXLFLA6JC5P","created_at":"2026-07-04T16:12:32Z"},{"alias_kind":"pith_short_16","alias_value":"4OXLFLA6JC5PTFA4","created_at":"2026-07-04T16:12:32Z"},{"alias_kind":"pith_short_8","alias_value":"4OXLFLA6","created_at":"2026-07-04T16:12:32Z"}],"graph_snapshots":[{"event_id":"sha256:f0cdac42b3c9f7e58772532b9b35f0bdb28b43885ea08ca678250c2bc3f40bda","target":"graph","created_at":"2026-07-04T16:12:32Z","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/9903435/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Experiments on a constant-density two-dimensional hole system in a GaAs quantum well reveal that the metallic behavior observed in the zero-magnetic-field temperature dependence of the resistivity depends on the symmetry of the confinement potential and the resulting spin-splitting of the valence band.","authors_text":"E. P. De Poortere, H. C. Manoharan, M. Shayegan, R. Winkler, S. J. Papadakis","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-03-30T21:26:44Z","title":"The Effect of Spin Splitting on the Metallic Behavior of a Two-Dimensional System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9903435","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":"sha256:3570a59f103bd25d12d1dac70e715c1bd64909cfef7d775864fb5c3d39d8b208","target":"record","created_at":"2026-07-04T16:12:32Z","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":"bec095cfe6295d5af3263a99c4c658155d90850dac85e9732f391c0c74d35491","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1999-03-30T21:26:44Z","title_canon_sha256":"9008786082c12ac54157a0190b311fdd86f4db39a3b6effad2ed69561e871f72"},"schema_version":"1.0","source":{"id":"cond-mat/9903435","kind":"arxiv","version":1}},"canonical_sha256":"e3aeb2ac1e48baf9941c41483f43e25ef77c3ad6b18e6a0e8a94f6c6d30d790d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3aeb2ac1e48baf9941c41483f43e25ef77c3ad6b18e6a0e8a94f6c6d30d790d","first_computed_at":"2026-07-04T16:12:32.227223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:12:32.227223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OJ0QwQAAk1QxHjhqMKHcQk8uqvUf+aKUKZR/JatWb+XSYTP7VcDTn3SFSrT4L7MOU4xQ7PaDOTmquwLw6v+RAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:12:32.227566Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9903435","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3570a59f103bd25d12d1dac70e715c1bd64909cfef7d775864fb5c3d39d8b208","sha256:f0cdac42b3c9f7e58772532b9b35f0bdb28b43885ea08ca678250c2bc3f40bda"],"state_sha256":"b39fe0c25e1000be39ade103e5a1962f179e50793c6a55f722c2d9067bd707d4"}