{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WZARVRPOBSCTEAVAVUAZGK27H5","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":"64214d3c9e241447755eeacf5c47e145ab95764a1ba8ed7264ababd6fe5a64e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-11T02:01:32Z","title_canon_sha256":"445aedc26172507f9920cff5e413059dc5bf0f32d097b2a286358e11ee84b6d4"},"schema_version":"1.0","source":{"id":"1309.2717","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2717","created_at":"2026-05-18T03:13:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2717v1","created_at":"2026-05-18T03:13:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2717","created_at":"2026-05-18T03:13:35Z"},{"alias_kind":"pith_short_12","alias_value":"WZARVRPOBSCT","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"WZARVRPOBSCTEAVA","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"WZARVRPO","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:4a4d368c002ee1deae5810769f7fa9fd5de88fb0e0aae256da3d0db1feb7dcaf","target":"graph","created_at":"2026-05-18T03:13:35Z","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":"Among very low disorder systems of condensed matter, the high mobility two-dimensional electron gas confined in gallium arsenide/aluminum gallium arsenide heterostructures holds a privileged position as platform for the discovery of new electronic states driven by strong Coulomb interactions. Molecular beam epitaxy (MBE), an ultra-high vacuum thin-film deposition technique, produces the highest quality 2DEGs and has played a central role in a number of discoveries that have at their root the interplay of reduced dimensionality, strong electron-electron interactions, and disorder. This review a","authors_text":"Michael J. Manfra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-11T02:01:32Z","title":"Molecular Beam Epitaxy of Ultra-High Quality AlGaAs/GaAs Heterostructures: Enabling Physics in Low-Dimensional Electronic Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2717","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:cb5028c4fd6c43bd802ad4498ad8e822022e42e899d5a0f505ef6f0cb7aaf2ac","target":"record","created_at":"2026-05-18T03:13:35Z","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":"64214d3c9e241447755eeacf5c47e145ab95764a1ba8ed7264ababd6fe5a64e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-09-11T02:01:32Z","title_canon_sha256":"445aedc26172507f9920cff5e413059dc5bf0f32d097b2a286358e11ee84b6d4"},"schema_version":"1.0","source":{"id":"1309.2717","kind":"arxiv","version":1}},"canonical_sha256":"b6411ac5ee0c853202a0ad01932b5f3f6ef63fbf88a1492214832d6333a53aaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6411ac5ee0c853202a0ad01932b5f3f6ef63fbf88a1492214832d6333a53aaf","first_computed_at":"2026-05-18T03:13:35.103523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:35.103523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g+uOaKsplE3GbtsGfIuFMUZtxKu23tOkguscwpj3e8pM6i0ONCcLvJJSHhfYBCcRAQV2c9gdnY6vp86Xalz2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:35.104341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.2717","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb5028c4fd6c43bd802ad4498ad8e822022e42e899d5a0f505ef6f0cb7aaf2ac","sha256:4a4d368c002ee1deae5810769f7fa9fd5de88fb0e0aae256da3d0db1feb7dcaf"],"state_sha256":"df6066498630d6dc81b58ec9292015f23cfdd4c0f11e7bae8addfee5ed5fedb3"}