{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:R2O4BA6GD2HR3I6P5WAY4PDFPJ","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":"0418afdee619636d6489febfdfa8859836f4ab3d48801de281db8c3b01500b6f","cross_cats_sorted":["physics.app-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-09-23T22:41:56Z","title_canon_sha256":"c5be242636a02c29672a667b0d5097c3122eee849425423fe05750fc982195d0"},"schema_version":"1.0","source":{"id":"2309.13490","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.13490","created_at":"2026-07-05T06:53:53Z"},{"alias_kind":"arxiv_version","alias_value":"2309.13490v1","created_at":"2026-07-05T06:53:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.13490","created_at":"2026-07-05T06:53:53Z"},{"alias_kind":"pith_short_12","alias_value":"R2O4BA6GD2HR","created_at":"2026-07-05T06:53:53Z"},{"alias_kind":"pith_short_16","alias_value":"R2O4BA6GD2HR3I6P","created_at":"2026-07-05T06:53:53Z"},{"alias_kind":"pith_short_8","alias_value":"R2O4BA6G","created_at":"2026-07-05T06:53:53Z"}],"graph_snapshots":[{"event_id":"sha256:2161310645e56aa29b7295b7e1ba7482d04526bbf4ebbe907ec415fca7e01309","target":"graph","created_at":"2026-07-05T06:53:53Z","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/2309.13490/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The use of trivalent erbium (Er$^{3+}$), typically embedded as an atomic defect in the solid-state, has widespread adoption as a dopant in telecommunications devices and shows promise as a spin-based quantum memory for quantum communication. In particular, its natural telecom C-band optical transition and spin-photon interface makes it an ideal candidate for integration into existing optical fiber networks without the need for quantum frequency conversion. However, successful scaling requires a host material with few intrinsic nuclear spins, compatibility with semiconductor foundry processes, ","authors_text":"Alan M. Dibos, Cheng Ji, Connor P. Horn, David D. Awschalom, F. Joseph Heremans, Gregory D. Grant, Ignas Masiulionis, Jianguo Wen, Koichi Tanaka, Manish K. Singh, Michael T. Solomon, Muchuan Hua, Sagar K. Seth, Sean E. Sullivan, Supratik Guha","cross_cats":["physics.app-ph","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-09-23T22:41:56Z","title":"Nanocavity-mediated Purcell enhancement of Er in TiO$_2$ thin films grown via atomic layer deposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.13490","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":"sha256:820e7189cb5edab86a7446b0870ff5477b06bde1311288fa629ec6907045fa54","target":"record","created_at":"2026-07-05T06:53:53Z","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":"0418afdee619636d6489febfdfa8859836f4ab3d48801de281db8c3b01500b6f","cross_cats_sorted":["physics.app-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-09-23T22:41:56Z","title_canon_sha256":"c5be242636a02c29672a667b0d5097c3122eee849425423fe05750fc982195d0"},"schema_version":"1.0","source":{"id":"2309.13490","kind":"arxiv","version":1}},"canonical_sha256":"8e9dc083c61e8f1da3cfed818e3c657a59d71fbefd635dea4c34594a76cb46b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e9dc083c61e8f1da3cfed818e3c657a59d71fbefd635dea4c34594a76cb46b7","first_computed_at":"2026-07-05T06:53:53.584193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:53:53.584193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ed3y78qxqSQU4AkSP6YvOuIjaZXLIhQwuSPylaO1PGj48pGl5xZMK8y2/eEBDgj120CEq/38a08qTZEN9EE5Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:53:53.584686Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.13490","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:820e7189cb5edab86a7446b0870ff5477b06bde1311288fa629ec6907045fa54","sha256:2161310645e56aa29b7295b7e1ba7482d04526bbf4ebbe907ec415fca7e01309"],"state_sha256":"7f7815b2891a47b5c523ce46b4e65c309daba5982620f4bd81b7fee93c78586b"}