{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:Y5P2QGOMEFC5CHL47LKSSQZKHS","short_pith_number":"pith:Y5P2QGOM","canonical_record":{"source":{"id":"1810.13089","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T03:20:52Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"134e2721d727ad7c04ee6314354dff074eed428ad1b786af9fa3032e07a9074d","abstract_canon_sha256":"88ee9e8fd24f27012a1b2eaa9584db5ed0d5f5ce67709a1c8642bb57f03dff4e"},"schema_version":"1.0"},"canonical_sha256":"c75fa819cc2145d11d7cfad529432a3ca20bd04622fc4789c574d484e60a0e8d","source":{"kind":"arxiv","id":"1810.13089","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13089","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13089v1","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13089","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"Y5P2QGOMEFC5","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"Y5P2QGOMEFC5CHL4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"Y5P2QGOM","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:Y5P2QGOMEFC5CHL47LKSSQZKHS","target":"record","payload":{"canonical_record":{"source":{"id":"1810.13089","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T03:20:52Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"134e2721d727ad7c04ee6314354dff074eed428ad1b786af9fa3032e07a9074d","abstract_canon_sha256":"88ee9e8fd24f27012a1b2eaa9584db5ed0d5f5ce67709a1c8642bb57f03dff4e"},"schema_version":"1.0"},"canonical_sha256":"c75fa819cc2145d11d7cfad529432a3ca20bd04622fc4789c574d484e60a0e8d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:36.398567Z","signature_b64":"Oie2gQfyOwMwt+vIneNYtBaOkyqJyX7IB0099dTh40OyKe1iLvsCxcC88eaoC6lyUHAxLEMxMB+9yWPTaVJaDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c75fa819cc2145d11d7cfad529432a3ca20bd04622fc4789c574d484e60a0e8d","last_reissued_at":"2026-05-17T23:50:36.397989Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:36.397989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.13089","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:50:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KdOvi4oeDoWB6ZDAEMZUai0qO43VT/clm4rVWXNJ7hhTSqhOhOgwOI4UjfwqOdc+vJSWiWaiDA4xoG5eHzvlDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T00:00:22.514300Z"},"content_sha256":"88750f99da16351cdd005b145246c7b3dbcb3e694c46809d42c4f8f661af8bc1","schema_version":"1.0","event_id":"sha256:88750f99da16351cdd005b145246c7b3dbcb3e694c46809d42c4f8f661af8bc1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:Y5P2QGOMEFC5CHL47LKSSQZKHS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum coherence control at near 1000 K","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Gang-Qin Liu, Ning Wang, Quan Li, Ren-Bao Liu, Xi Feng","submitted_at":"2018-10-31T03:20:52Z","abstract_excerpt":"Quantum coherence control usually requires extremely low temperature environments. Even for spins in diamond, a remarkable exception, the coherence signal is lost as temperature approaches 700 K. Here we demonstrate quantum coherence control of the electron spins of nitrogen-vacancy centers in nanodiamonds at temperatures near 1000 K. The scheme is based on initialization and readout of the spins at room temperature and control at high temperature, which is enabled by pulse laser heating and rapid diffusion cooling of nanodiamonds on amorphous carbon films. Using high-temperature spin control,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13089","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:50:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4qNk7r8qASt5gG9LObBlLkkcaj2JI29QJuhBJqe2iVWGHofSI596bc5yG2++pO2r27CJsPxg+Tb2jM98wlOIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T00:00:22.515011Z"},"content_sha256":"93468c6c7af5eabca5dae4a4b266c3736a5f8ec163d830bfea05467f409678bf","schema_version":"1.0","event_id":"sha256:93468c6c7af5eabca5dae4a4b266c3736a5f8ec163d830bfea05467f409678bf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/bundle.json","state_url":"https://pith.science/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-19T00:00:22Z","links":{"resolver":"https://pith.science/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS","bundle":"https://pith.science/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/bundle.json","state":"https://pith.science/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y5P2QGOMEFC5CHL47LKSSQZKHS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Y5P2QGOMEFC5CHL47LKSSQZKHS","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":"88ee9e8fd24f27012a1b2eaa9584db5ed0d5f5ce67709a1c8642bb57f03dff4e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T03:20:52Z","title_canon_sha256":"134e2721d727ad7c04ee6314354dff074eed428ad1b786af9fa3032e07a9074d"},"schema_version":"1.0","source":{"id":"1810.13089","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13089","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13089v1","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13089","created_at":"2026-05-17T23:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"Y5P2QGOMEFC5","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"Y5P2QGOMEFC5CHL4","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"Y5P2QGOM","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:93468c6c7af5eabca5dae4a4b266c3736a5f8ec163d830bfea05467f409678bf","target":"graph","created_at":"2026-05-17T23:50:36Z","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":"Quantum coherence control usually requires extremely low temperature environments. Even for spins in diamond, a remarkable exception, the coherence signal is lost as temperature approaches 700 K. Here we demonstrate quantum coherence control of the electron spins of nitrogen-vacancy centers in nanodiamonds at temperatures near 1000 K. The scheme is based on initialization and readout of the spins at room temperature and control at high temperature, which is enabled by pulse laser heating and rapid diffusion cooling of nanodiamonds on amorphous carbon films. Using high-temperature spin control,","authors_text":"Gang-Qin Liu, Ning Wang, Quan Li, Ren-Bao Liu, Xi Feng","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T03:20:52Z","title":"Quantum coherence control at near 1000 K"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13089","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":"sha256:88750f99da16351cdd005b145246c7b3dbcb3e694c46809d42c4f8f661af8bc1","target":"record","created_at":"2026-05-17T23:50:36Z","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":"88ee9e8fd24f27012a1b2eaa9584db5ed0d5f5ce67709a1c8642bb57f03dff4e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-10-31T03:20:52Z","title_canon_sha256":"134e2721d727ad7c04ee6314354dff074eed428ad1b786af9fa3032e07a9074d"},"schema_version":"1.0","source":{"id":"1810.13089","kind":"arxiv","version":1}},"canonical_sha256":"c75fa819cc2145d11d7cfad529432a3ca20bd04622fc4789c574d484e60a0e8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c75fa819cc2145d11d7cfad529432a3ca20bd04622fc4789c574d484e60a0e8d","first_computed_at":"2026-05-17T23:50:36.397989Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:36.397989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Oie2gQfyOwMwt+vIneNYtBaOkyqJyX7IB0099dTh40OyKe1iLvsCxcC88eaoC6lyUHAxLEMxMB+9yWPTaVJaDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:36.398567Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.13089","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88750f99da16351cdd005b145246c7b3dbcb3e694c46809d42c4f8f661af8bc1","sha256:93468c6c7af5eabca5dae4a4b266c3736a5f8ec163d830bfea05467f409678bf"],"state_sha256":"57ab3cee46620f158ce5702ae2f82e22173bb2992cd79dab58c0284a4d7ebd14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQXkbqCR7/0EAQmqVkolQ5Fj+rcKdrIyoypTI7Xk1ILsXnLarnPxWaJkYw8FYVOK+TcU/QteTjUyVdWQ7km7Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T00:00:22.517168Z","bundle_sha256":"cf6d89a0889d699a591f6f473135e342405a1de904889c251fc7860955159f4a"}}