{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JNH77Z7WC532NYLQ25YAS5FDL3","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":"49a516fa84a77d3ca2231c9daed5107179ee151ec8cacd22a04e1435e5e341f7","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2023-05-16T04:11:40Z","title_canon_sha256":"abeb53a21632a4e66230a07a4647e1ef2352ec381a9fff76483d4ec3e1f8c749"},"schema_version":"1.0","source":{"id":"2305.09152","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.09152","created_at":"2026-07-05T06:10:44Z"},{"alias_kind":"arxiv_version","alias_value":"2305.09152v1","created_at":"2026-07-05T06:10:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.09152","created_at":"2026-07-05T06:10:44Z"},{"alias_kind":"pith_short_12","alias_value":"JNH77Z7WC532","created_at":"2026-07-05T06:10:44Z"},{"alias_kind":"pith_short_16","alias_value":"JNH77Z7WC532NYLQ","created_at":"2026-07-05T06:10:44Z"},{"alias_kind":"pith_short_8","alias_value":"JNH77Z7W","created_at":"2026-07-05T06:10:44Z"}],"graph_snapshots":[{"event_id":"sha256:1ae1d33239712c85ea5dd0c6993c8a560487059c75b8a1f13970b1b3223d0252","target":"graph","created_at":"2026-07-05T06:10:44Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2305.09152/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a QNSC pre-coding scheme based on probabilistic shaping of the basis, to reduce the probability of ciphertext bits that are easier to be intercepted. Experiment results show this scheme can improve the security performance by 100% in terms of Eve's cipher text BER.","authors_text":"Chao Lei, Dawei Ge, Dechao Zhang, Dong Wang, Han Li, Jie Zhang, Sheng Liu, Shuang Wei, Tianhe Liu, Wei Wang, Yajie Li, Yongli Zhao, Yunbo Li","cross_cats":["quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2023-05-16T04:11:40Z","title":"Security Enhancement of Quantum Noise Stream Cipher Based on Probabilistic Constellation Shaping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.09152","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:bdaa667a612f60a451c25a09a6c9dea6497616858af44a62940cccf8b87bde7d","target":"record","created_at":"2026-07-05T06:10:44Z","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":"49a516fa84a77d3ca2231c9daed5107179ee151ec8cacd22a04e1435e5e341f7","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2023-05-16T04:11:40Z","title_canon_sha256":"abeb53a21632a4e66230a07a4647e1ef2352ec381a9fff76483d4ec3e1f8c749"},"schema_version":"1.0","source":{"id":"2305.09152","kind":"arxiv","version":1}},"canonical_sha256":"4b4fffe7f61777a6e170d7700974a35ef05ee14237e56a08f6d83cfba5b769a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b4fffe7f61777a6e170d7700974a35ef05ee14237e56a08f6d83cfba5b769a4","first_computed_at":"2026-07-05T06:10:44.476428Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:10:44.476428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dsEhwFAKQbvjlkKVf3OhRuhZhQg8CD0MB8r4WwpZ1dz0bY+WtB/UQS79w2pnQlThgz24wzwoWQQHiXLoNb2sDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:10:44.476860Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.09152","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdaa667a612f60a451c25a09a6c9dea6497616858af44a62940cccf8b87bde7d","sha256:1ae1d33239712c85ea5dd0c6993c8a560487059c75b8a1f13970b1b3223d0252"],"state_sha256":"a2cf898d8e8ab01da5adf339e066d2346a2e5e0ba357f920dca8ad17145f5ec9"}