{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QYHZ7GDAR24C5MW3JCQLTZX6LK","short_pith_number":"pith:QYHZ7GDA","canonical_record":{"source":{"id":"1405.5258","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-05-20T22:53:05Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"130abab9e2c082db3ddbbea619745bd8bb24fc16214ed387f17f91c1f84c34d2","abstract_canon_sha256":"1b20c57c51566fa8002c8ab07b850f0461b6d87fb9f78252742cfd01b1bb70df"},"schema_version":"1.0"},"canonical_sha256":"860f9f98608eb82eb2db48a0b9e6fe5a8f5eaff3c14fdb24a1599858de1a1048","source":{"kind":"arxiv","id":"1405.5258","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.5258","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"arxiv_version","alias_value":"1405.5258v1","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.5258","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"pith_short_12","alias_value":"QYHZ7GDAR24C","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QYHZ7GDAR24C5MW3","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QYHZ7GDA","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QYHZ7GDAR24C5MW3JCQLTZX6LK","target":"record","payload":{"canonical_record":{"source":{"id":"1405.5258","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-05-20T22:53:05Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"130abab9e2c082db3ddbbea619745bd8bb24fc16214ed387f17f91c1f84c34d2","abstract_canon_sha256":"1b20c57c51566fa8002c8ab07b850f0461b6d87fb9f78252742cfd01b1bb70df"},"schema_version":"1.0"},"canonical_sha256":"860f9f98608eb82eb2db48a0b9e6fe5a8f5eaff3c14fdb24a1599858de1a1048","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:24.671537Z","signature_b64":"xRZqtr2wuzC74irKBhPP0CtAUfYlrvZczT+iCTZ4deC+Veixuaf3hsLysn/fl/PUsArJMg5pf/5kjGNAYcN1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"860f9f98608eb82eb2db48a0b9e6fe5a8f5eaff3c14fdb24a1599858de1a1048","last_reissued_at":"2026-05-18T02:51:24.670851Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:24.670851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.5258","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":"2026-05-18T02:51:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5phcjDH1zkKmejAQHbokC51BI67jOOad79MUbUJ+0ccFbcUCjfgh16Mjv4veauxHU54n/Jkea7+agK5MZ+LvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:16:37.602508Z"},"content_sha256":"39f5f4a23d8a22433a6451f4d03283f870103000c6a2211610ce5c2e9c7ccdb6","schema_version":"1.0","event_id":"sha256:39f5f4a23d8a22433a6451f4d03283f870103000c6a2211610ce5c2e9c7ccdb6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QYHZ7GDAR24C5MW3JCQLTZX6LK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent properties of single rare-earth spin qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"A.D. Wieck, C. Duan, J. Wrachtrup, K. Xia, M. Jamali, N. Kukharchyk, N. Yang, N. Zhao, P. Siyushev, R. Kolesov, R. Reuter","submitted_at":"2014-05-20T22:53:05Z","abstract_excerpt":"Rare-earth-doped crystals are excellent hardware for quantum storage of optical information. Additional functionality of these materials is added by their waveguiding properties allowing for on-chip photonic networks. However, detection and coherent properties of rare-earth single-spin qubits have not been demonstrated so far. Here, we present experimental results on high-fidelity optical initialization, effcient coherent manipulation, and optical readout of a single electron spin of Ce$^{3+}$ ion in a YAG crystal. Under dynamic decoupling, spin coherence lifetime reaches $T_2$=2 ms and is alm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.5258","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":"2026-05-18T02:51:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HYQcMheXMjoI1gUB8E/rvTLpG2dHMzQUAGNGZFmzPXPGySA7bsDNlXFqGO1+RTqLQpTcyjHVvo8J4nAHiC79CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:16:37.603084Z"},"content_sha256":"ac6c1e41e43c4cf8a495f920d365f423f78a9d18d5faaa982a97492567bf8ffa","schema_version":"1.0","event_id":"sha256:ac6c1e41e43c4cf8a495f920d365f423f78a9d18d5faaa982a97492567bf8ffa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/bundle.json","state_url":"https://pith.science/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/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":"2026-05-25T22:16:37Z","links":{"resolver":"https://pith.science/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK","bundle":"https://pith.science/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/bundle.json","state":"https://pith.science/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYHZ7GDAR24C5MW3JCQLTZX6LK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QYHZ7GDAR24C5MW3JCQLTZX6LK","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":"1b20c57c51566fa8002c8ab07b850f0461b6d87fb9f78252742cfd01b1bb70df","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-05-20T22:53:05Z","title_canon_sha256":"130abab9e2c082db3ddbbea619745bd8bb24fc16214ed387f17f91c1f84c34d2"},"schema_version":"1.0","source":{"id":"1405.5258","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.5258","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"arxiv_version","alias_value":"1405.5258v1","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.5258","created_at":"2026-05-18T02:51:24Z"},{"alias_kind":"pith_short_12","alias_value":"QYHZ7GDAR24C","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QYHZ7GDAR24C5MW3","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QYHZ7GDA","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:ac6c1e41e43c4cf8a495f920d365f423f78a9d18d5faaa982a97492567bf8ffa","target":"graph","created_at":"2026-05-18T02:51:24Z","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":"Rare-earth-doped crystals are excellent hardware for quantum storage of optical information. Additional functionality of these materials is added by their waveguiding properties allowing for on-chip photonic networks. However, detection and coherent properties of rare-earth single-spin qubits have not been demonstrated so far. Here, we present experimental results on high-fidelity optical initialization, effcient coherent manipulation, and optical readout of a single electron spin of Ce$^{3+}$ ion in a YAG crystal. Under dynamic decoupling, spin coherence lifetime reaches $T_2$=2 ms and is alm","authors_text":"A.D. Wieck, C. Duan, J. Wrachtrup, K. Xia, M. Jamali, N. Kukharchyk, N. Yang, N. Zhao, P. Siyushev, R. Kolesov, R. Reuter","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-05-20T22:53:05Z","title":"Coherent properties of single rare-earth spin qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.5258","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":"sha256:39f5f4a23d8a22433a6451f4d03283f870103000c6a2211610ce5c2e9c7ccdb6","target":"record","created_at":"2026-05-18T02:51:24Z","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":"1b20c57c51566fa8002c8ab07b850f0461b6d87fb9f78252742cfd01b1bb70df","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-05-20T22:53:05Z","title_canon_sha256":"130abab9e2c082db3ddbbea619745bd8bb24fc16214ed387f17f91c1f84c34d2"},"schema_version":"1.0","source":{"id":"1405.5258","kind":"arxiv","version":1}},"canonical_sha256":"860f9f98608eb82eb2db48a0b9e6fe5a8f5eaff3c14fdb24a1599858de1a1048","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"860f9f98608eb82eb2db48a0b9e6fe5a8f5eaff3c14fdb24a1599858de1a1048","first_computed_at":"2026-05-18T02:51:24.670851Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:24.670851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xRZqtr2wuzC74irKBhPP0CtAUfYlrvZczT+iCTZ4deC+Veixuaf3hsLysn/fl/PUsArJMg5pf/5kjGNAYcN1AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:24.671537Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.5258","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:39f5f4a23d8a22433a6451f4d03283f870103000c6a2211610ce5c2e9c7ccdb6","sha256:ac6c1e41e43c4cf8a495f920d365f423f78a9d18d5faaa982a97492567bf8ffa"],"state_sha256":"ec7ed833975f74460122ed92db1ef0a22a2803ef8ad86fd04f0fda408d2ea117"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2vTdwA1U4pzWN8Tv6KGIyraCtEDE/dqyxIHRrXJBOqL2zA9caO/IVLBmEUIr5BYFOFAiXwESUS+jC9enB8+LDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:16:37.605879Z","bundle_sha256":"935f75386d6da03e867c1b94cadc5f4afcc8f6427597d6a70883b176f6294e7f"}}