{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OWCINNMDHO2BE62AJGBIZT7XZS","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":"21a2188599eeab13a546aa731f780b5534a5de756c6585cacb6532486ab6ec3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-02-15T08:34:30Z","title_canon_sha256":"cd074b53a082f7195d980975d7bfbe9cf06f5e8eac24a1a94cc4f96363cb1649"},"schema_version":"1.0","source":{"id":"2302.07523","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.07523","created_at":"2026-07-05T08:30:02Z"},{"alias_kind":"arxiv_version","alias_value":"2302.07523v4","created_at":"2026-07-05T08:30:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.07523","created_at":"2026-07-05T08:30:02Z"},{"alias_kind":"pith_short_12","alias_value":"OWCINNMDHO2B","created_at":"2026-07-05T08:30:02Z"},{"alias_kind":"pith_short_16","alias_value":"OWCINNMDHO2BE62A","created_at":"2026-07-05T08:30:02Z"},{"alias_kind":"pith_short_8","alias_value":"OWCINNMD","created_at":"2026-07-05T08:30:02Z"}],"graph_snapshots":[{"event_id":"sha256:c5421140fef4d488b7c1ba1c185bcb885b6c9fb76f096af3fbf34a6c5d8b0629","target":"graph","created_at":"2026-07-05T08:30:02Z","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/2302.07523/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Virtually noiseless due to the scarcity of spinful nuclei in the lattice, simple oxides hold promise as hosts of solid-state spin qubits. However, no suitable spin defect has yet been found in these systems. Using high-throughput first-principles calculations, we predict spin defects in calcium oxide with electronic properties remarkably similar to those of the NV center in diamond. These defects are charged complexes where a dopant atom -- Sb, Bi, or I -- occupies the volume vacated by adjacent cation and anion vacancies. The predicted zero phonon line shows that the Bi complex emits in the t","authors_text":"Christian Vorwerk, Giulia Galli, Joel Davidsson, Mykyta Onizhuk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-02-15T08:34:30Z","title":"Discovery of Atomic Clock-Like Spin Defects in Simple Oxides from First Principles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.07523","kind":"arxiv","version":4},"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":"sha256:3abfbabb112dc4dd3428e1962a740de31b02e260509ae550296bd49cd5dbdd87","target":"record","created_at":"2026-07-05T08:30:02Z","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":"21a2188599eeab13a546aa731f780b5534a5de756c6585cacb6532486ab6ec3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-02-15T08:34:30Z","title_canon_sha256":"cd074b53a082f7195d980975d7bfbe9cf06f5e8eac24a1a94cc4f96363cb1649"},"schema_version":"1.0","source":{"id":"2302.07523","kind":"arxiv","version":4}},"canonical_sha256":"758486b5833bb4127b4049828ccff7cca50d60c81782b1c0f77d6bfdec184ec1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"758486b5833bb4127b4049828ccff7cca50d60c81782b1c0f77d6bfdec184ec1","first_computed_at":"2026-07-05T08:30:02.199533Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:30:02.199533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qofsDqL9UEEmVa+TAh7GXVJNYMoPwS7Y1EtqlEw0f/SjwVKdabr17xc06bkP7J708wKDrjjsqWYZmla1FPzTAA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:30:02.199980Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.07523","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3abfbabb112dc4dd3428e1962a740de31b02e260509ae550296bd49cd5dbdd87","sha256:c5421140fef4d488b7c1ba1c185bcb885b6c9fb76f096af3fbf34a6c5d8b0629"],"state_sha256":"3c556c21d799dcb9e00fd68a06d85d43fc6ed5f1fcd91cc04f07e43904493002"}