{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:6TFO4TF2OR3WZX2YZDUUF7HD3G","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":"63cc7b13591a5637db49cf86dc48b91e7618f0f7138b049ba499a24cf8e12f24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-03-24T13:19:37Z","title_canon_sha256":"46062c816dacc40b8e1572a29bbaef1a9267a5bfa4af43f82c5943502222986a"},"schema_version":"1.0","source":{"id":"0903.4078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.4078","created_at":"2026-05-18T02:14:26Z"},{"alias_kind":"arxiv_version","alias_value":"0903.4078v1","created_at":"2026-05-18T02:14:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.4078","created_at":"2026-05-18T02:14:26Z"},{"alias_kind":"pith_short_12","alias_value":"6TFO4TF2OR3W","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6TFO4TF2OR3WZX2Y","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6TFO4TF2","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:fbfb0e3c4f2a9b30f82b098be5835caaf38711ec1be2335b6e668657377893be","target":"graph","created_at":"2026-05-18T02:14:26Z","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":"The negatively charged nitrogen-vacancy defect ($N-V^-$ center) in diamond is an important atomic-scale structure that can be used as a qubit in quantum computing and as a marker in biomedical applications. Its usefulness relies on the ability to optically excite electrons between well-defined gap states, which requires clear and detailed understanding of the relevant states and excitation processes. Here we show that by using hybrid density-functional-theory calculations in a large supercell we can reproduce the zero-phonon line and the Stokes and anti-Stokes shifts, yielding a complete pictu","authors_text":"Adam Gali, Efthimios Kaxiras, Erik Janz\\'en, Georg Kresse, P\\'eter De\\'ak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-03-24T13:19:37Z","title":"Theory of Spin-Conserving Excitation of the $N-V^-$ Center in Diamond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.4078","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":"sha256:3af6ecf30cf4f73e74528dc3e4b4d013476421d58d0cc49708057cc5e8252a94","target":"record","created_at":"2026-05-18T02:14:26Z","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":"63cc7b13591a5637db49cf86dc48b91e7618f0f7138b049ba499a24cf8e12f24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-03-24T13:19:37Z","title_canon_sha256":"46062c816dacc40b8e1572a29bbaef1a9267a5bfa4af43f82c5943502222986a"},"schema_version":"1.0","source":{"id":"0903.4078","kind":"arxiv","version":1}},"canonical_sha256":"f4caee4cba74776cdf58c8e942fce3d98d9b07f5eec35a4eb493dbab793c35bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f4caee4cba74776cdf58c8e942fce3d98d9b07f5eec35a4eb493dbab793c35bd","first_computed_at":"2026-05-18T02:14:26.264245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:26.264245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hNJGyKoj/zgje1leU4kJ4f0RmQSLRpkFv6UDMXzdj928MJIilbBxW/avU8KrsX6wEkqIr9gWDfo0yNvkeLwZAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:26.264838Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.4078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3af6ecf30cf4f73e74528dc3e4b4d013476421d58d0cc49708057cc5e8252a94","sha256:fbfb0e3c4f2a9b30f82b098be5835caaf38711ec1be2335b6e668657377893be"],"state_sha256":"7947b3c03dcfbe6c05af4e19a200c3d02175df83a359751e9c99e36f1ef42c67"}