{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KVA6XH2ODJ2R2HLDALGVARPKLE","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":"44fd0da4779ab75f66ccc762197c0909cf114b4000c169d66061d13ad9c1b623","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-09-30T13:44:47Z","title_canon_sha256":"00b34292f75eba31625db7f02f6b2cabf2b1e7a76d7500d9195c352150fca066"},"schema_version":"1.0","source":{"id":"1210.0199","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.0199","created_at":"2026-05-18T01:54:12Z"},{"alias_kind":"arxiv_version","alias_value":"1210.0199v1","created_at":"2026-05-18T01:54:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.0199","created_at":"2026-05-18T01:54:12Z"},{"alias_kind":"pith_short_12","alias_value":"KVA6XH2ODJ2R","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KVA6XH2ODJ2R2HLD","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KVA6XH2O","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:c3387ea711b722d686cd1b6f508412ccbd1a873372f83a57c6bbc8bd77060b7c","target":"graph","created_at":"2026-05-18T01:54:12Z","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 correlation quantified by quantum discord has been demonstrated experimentally as important physical resources in quantum computation and communication for some cases even without the presence of entanglement. However, since the interaction between the quantum system and the noisy environment is inevitable, it is essential to protect quantum correlation from lost in the environment and to characterize its dynamical behavior in the real open systems. Here we showed experimentally in the solid-state P:Si system the existence of a stable interval for the quantum correlation in the beginni","authors_text":"Changkui Duan, Chenyong Ju, Fangzhou Jin, Jiangfeng Du, Jianpei Geng, Minjun Shi, Runmin Zhang, Xing Rong, Ya Wang, Zixiang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-09-30T13:44:47Z","title":"Experimental protection and revival of quantum correlation in open solid systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.0199","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":"sha256:54b0a09caf56bd3936865bed5963ac1fd7b1abe79272ecacbbe83d7e675ad973","target":"record","created_at":"2026-05-18T01:54:12Z","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":"44fd0da4779ab75f66ccc762197c0909cf114b4000c169d66061d13ad9c1b623","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-09-30T13:44:47Z","title_canon_sha256":"00b34292f75eba31625db7f02f6b2cabf2b1e7a76d7500d9195c352150fca066"},"schema_version":"1.0","source":{"id":"1210.0199","kind":"arxiv","version":1}},"canonical_sha256":"5541eb9f4e1a751d1d6302cd5045ea5921a3ec62d89c21cdcb63cf172538592a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5541eb9f4e1a751d1d6302cd5045ea5921a3ec62d89c21cdcb63cf172538592a","first_computed_at":"2026-05-18T01:54:12.446719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:12.446719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VnqTNi0fwDZewpfbYMZV/JM8Ym4IRI+RKl8wypx+CgHSnfxj6GHcrXCIsc0Dk01pH0X35a6dUAkeLup9N8zoCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:12.447352Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.0199","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54b0a09caf56bd3936865bed5963ac1fd7b1abe79272ecacbbe83d7e675ad973","sha256:c3387ea711b722d686cd1b6f508412ccbd1a873372f83a57c6bbc8bd77060b7c"],"state_sha256":"b6734f729f58b0b723f3a074c850c673c39020e5360bf05981a7f3b5091a0eaa"}