{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Y3GOPDJZRI5P2R5WHEQPDDJQCF","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":"efef5ae8a33d65d5ec8de2e24b3b719853b80ec07043f5535973a5dd52bd5053","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-12-27T07:44:51Z","title_canon_sha256":"fa2ccac3396fc220e5f4b84bd4b4ca6d2fd3dfc270f3be4b0373548c9c61991b"},"schema_version":"1.0","source":{"id":"1112.5936","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.5936","created_at":"2026-05-18T01:59:00Z"},{"alias_kind":"arxiv_version","alias_value":"1112.5936v2","created_at":"2026-05-18T01:59:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.5936","created_at":"2026-05-18T01:59:00Z"},{"alias_kind":"pith_short_12","alias_value":"Y3GOPDJZRI5P","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Y3GOPDJZRI5P2R5W","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Y3GOPDJZ","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:6d70299ae2d0d615682066502b4b401aea4f71ec9faf99aa77fc77395ed69ca7","target":"graph","created_at":"2026-05-18T01:59:00Z","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 present an experimental study of the longitudinal electron-spin relaxation time (T1) of negatively charged nitrogen-vacancy (NV) ensembles in diamond. T1 was studied as a function of temperature from 5 to 475 K and magnetic field from 0 to 630 G for several samples with various NV and nitrogen concentrations. Our studies reveal three processes responsible for T1 relaxation. Above room temperature, a two-phonon Raman process dominates, and below, we observe an Orbach-type process with an activation energy, 73(4) meV, which closely matches the local vibrational modes of the NV center. At yet ","authors_text":"A. Jarmola, D. Budker, K. Jensen, S. Chemerisov, V. M. Acosta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-12-27T07:44:51Z","title":"Temperature and magnetic field dependent longitudinal spin relaxation in nitrogen-vacancy ensembles in diamond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.5936","kind":"arxiv","version":2},"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:cf73fd1c048171bef4a68e5e1543e8fcb711cf769c939b842829f8dbc0534b48","target":"record","created_at":"2026-05-18T01:59:00Z","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":"efef5ae8a33d65d5ec8de2e24b3b719853b80ec07043f5535973a5dd52bd5053","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-12-27T07:44:51Z","title_canon_sha256":"fa2ccac3396fc220e5f4b84bd4b4ca6d2fd3dfc270f3be4b0373548c9c61991b"},"schema_version":"1.0","source":{"id":"1112.5936","kind":"arxiv","version":2}},"canonical_sha256":"c6cce78d398a3afd47b63920f18d301177db27429b4915085845543aadc259c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6cce78d398a3afd47b63920f18d301177db27429b4915085845543aadc259c7","first_computed_at":"2026-05-18T01:59:00.394798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:00.394798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CDw+hJHRhU2J5FmgbS4RAkDioLxo0KPh7XkHc1C17smdzY2Cq8MBtsE/OXTDDfE5cc6bv2h7LxXVu9gOToTUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:00.395542Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.5936","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf73fd1c048171bef4a68e5e1543e8fcb711cf769c939b842829f8dbc0534b48","sha256:6d70299ae2d0d615682066502b4b401aea4f71ec9faf99aa77fc77395ed69ca7"],"state_sha256":"ca7152a1c6ba790b5f91cce0c61ca94275520a070d0c76ab80734b1fba553d88"}