{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JQ26SZXE3HLAHS6SVQEY4I56OG","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":"85525767bc5c3a293e6ba6df3bbceefbf5c311fe43d4837dcbdd92add1b4d14d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-21T11:47:13Z","title_canon_sha256":"e69fde355150cc53a4a9ecd33d13baef8dc2af8481f8004d15e334f7258774c0"},"schema_version":"1.0","source":{"id":"1809.08049","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.08049","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"arxiv_version","alias_value":"1809.08049v1","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.08049","created_at":"2026-05-17T23:48:23Z"},{"alias_kind":"pith_short_12","alias_value":"JQ26SZXE3HLA","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JQ26SZXE3HLAHS6S","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JQ26SZXE","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:5f298cccd9927dfd8c1e50ce40d3ff713844c3c379dc2e463fe0538e60004128","target":"graph","created_at":"2026-05-17T23:48:23Z","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":"We report on the experimental evidence for a nanosecond time-scale spin memory based on nonradiative excitons. The effect manifests itself in magnetic-field-induced oscillations of the energy of the optically active (radiative) excitons. The oscillations detected by a spectrally-resolved pump-probe technique applied to a GaAs/AlGaAs quantum well structure in a transverse magnetic field persist over a time scale, which is orders of magnitude longer than the characteristic decoherence time in the system. The effect is attributed to the spin-dependent electron-electron exchange interaction of the","authors_text":"A. V. Kavokin, A. V. Trifonov, E. S. Khramtsov, I. V. Ignatiev, K. V. Kavokin, M. Bayer, P. Yu. Shapochkin, S. A. Eliseev, Y. P. Efimov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-21T11:47:13Z","title":"Nanosecond-scale magneto-exciton energy oscillations in quantum wells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.08049","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":"sha256:17255f0fad19fd5fda61ec6e66b01bb84cc392bdb4f3d045a50c3170930ad5fb","target":"record","created_at":"2026-05-17T23:48:23Z","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":"85525767bc5c3a293e6ba6df3bbceefbf5c311fe43d4837dcbdd92add1b4d14d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-21T11:47:13Z","title_canon_sha256":"e69fde355150cc53a4a9ecd33d13baef8dc2af8481f8004d15e334f7258774c0"},"schema_version":"1.0","source":{"id":"1809.08049","kind":"arxiv","version":1}},"canonical_sha256":"4c35e966e4d9d603cbd2ac098e23be71bd0e9e30875337363d2ef89fded477d8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c35e966e4d9d603cbd2ac098e23be71bd0e9e30875337363d2ef89fded477d8","first_computed_at":"2026-05-17T23:48:23.731481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:23.731481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nNnmUlsGebiorlY7DcilfV5mDYDvbaF4rMcPtrQZdNTOVr0hOpz0yR05LOZ9qtC9g6mZtiZZMqmooyKJ2NeoBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:23.732032Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.08049","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17255f0fad19fd5fda61ec6e66b01bb84cc392bdb4f3d045a50c3170930ad5fb","sha256:5f298cccd9927dfd8c1e50ce40d3ff713844c3c379dc2e463fe0538e60004128"],"state_sha256":"d283ad2925cce9ca997888fdd17878df998eef9dc70596329050ac50cad809e7"}