{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:WONMMAJOQD6NK7U6WSO5L5CZD7","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":"de1a1b35833f3944c027dc1fc5a4bfdd3f1f7b8a575cc8d6b4ab1f0a03022a56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-28T17:24:50Z","title_canon_sha256":"b38035fee2f456cf628cedfefc8ef4d76fa5d0d677fdc95e75f8440c65c6e354"},"schema_version":"1.0","source":{"id":"2012.14370","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.14370","created_at":"2026-07-05T03:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"2012.14370v2","created_at":"2026-07-05T03:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.14370","created_at":"2026-07-05T03:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"WONMMAJOQD6N","created_at":"2026-07-05T03:43:00Z"},{"alias_kind":"pith_short_16","alias_value":"WONMMAJOQD6NK7U6","created_at":"2026-07-05T03:43:00Z"},{"alias_kind":"pith_short_8","alias_value":"WONMMAJO","created_at":"2026-07-05T03:43:00Z"}],"graph_snapshots":[{"event_id":"sha256:79d1eb986fcfb2800a431ef25c8873ae9965375a9d972616c0a045dd98a9a855","target":"graph","created_at":"2026-07-05T03:43:00Z","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/2012.14370/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Illumination is performed at low temperature on dopant-free two-dimensional electron gases (2DEGs) of varying depths, under unbiased (gates grounded) and biased (gates at a positive or negative voltage) conditions. Unbiased illuminations in 2DEGs located more than 70 nm away from the surface result in a gain in mobility at a given electron density, primarily driven by the reduction of background impurities. In 2DEGs closer to the surface, unbiased illuminations result in a mobility loss, driven by an increase in surface charge density. Biased illuminations performed with positive applied gate ","authors_text":"A. F. Croxall, A. R. Hamilton, A. Sachrajda, A. Shetty, B. Buonacorsi, D. A. Ritchie, D. G. Austing, F. Sfigakis, H. E. Beere, H. S. Kim, I. Farrer, J. Baugh, K. Das Gupta, M. C. Tam, M. E. Reimer, M. Pepper, S. A. Studenikin, W. Y. Mak, Z. R. Wasilewski","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-28T17:24:50Z","title":"Effects of biased and unbiased illuminations on dopant-free GaAs/AlGaAs 2DEGs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.14370","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:d194d3c2fbe1847ef0af2bab1dd911bf6d0e582899208a8af4b2d39c3234fd42","target":"record","created_at":"2026-07-05T03:43:00Z","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":"de1a1b35833f3944c027dc1fc5a4bfdd3f1f7b8a575cc8d6b4ab1f0a03022a56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-28T17:24:50Z","title_canon_sha256":"b38035fee2f456cf628cedfefc8ef4d76fa5d0d677fdc95e75f8440c65c6e354"},"schema_version":"1.0","source":{"id":"2012.14370","kind":"arxiv","version":2}},"canonical_sha256":"b39ac6012e80fcd57e9eb49dd5f4591fc3c8d1c49aa157565c5d079cad87c60a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b39ac6012e80fcd57e9eb49dd5f4591fc3c8d1c49aa157565c5d079cad87c60a","first_computed_at":"2026-07-05T03:43:00.898738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:43:00.898738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GBV2345Bny8LA11GkFLaTUVQW/NKhtExG0u0rlnCqWZB52rVp4ZGh/B8DB7rOgO9HiDeu2v3JdlFQ8bKr6duAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:43:00.899215Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.14370","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d194d3c2fbe1847ef0af2bab1dd911bf6d0e582899208a8af4b2d39c3234fd42","sha256:79d1eb986fcfb2800a431ef25c8873ae9965375a9d972616c0a045dd98a9a855"],"state_sha256":"336159eae2206d65bf75f2299d6f452b7ed02fb04a2299a65067746ed294885b"}