{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:EQIGOR7JWNHJJGSNDT63EFMXX7","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":"b2e15b25974de10dca12e4142f45c31481a59a2a24ffc313721b474c6dd403bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-12T03:03:28Z","title_canon_sha256":"e4208f8378926f24cde14570c4d4b90c3109493539b7893ba08a3c83cc139ce4"},"schema_version":"1.0","source":{"id":"1711.04225","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.04225","created_at":"2026-05-18T00:17:24Z"},{"alias_kind":"arxiv_version","alias_value":"1711.04225v2","created_at":"2026-05-18T00:17:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.04225","created_at":"2026-05-18T00:17:24Z"},{"alias_kind":"pith_short_12","alias_value":"EQIGOR7JWNHJ","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"EQIGOR7JWNHJJGSN","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"EQIGOR7J","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:5c30df5cda1ad712d55270bcda12756eb0a378600a0e8d252aaba1cc5a169b4d","target":"graph","created_at":"2026-05-18T00:17:24Z","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":"The method of improving the performance of continuous-variable quantum key distribution protocols by post-selection has been recently proposed and verified. In continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) protocols, the measurement results are obtained from untrusted third party Charlie. There is still not an effective method of improving CV-MDI QKD by the post-selection with untrusted measurement. We propose a method to improve the performance of coherent-state CV-MDI QKD protocol by non-Gaussian post-selection. The non-Gaussian post-selection of tr","authors_text":"Bingjie Xu, Hong Guo, Song Yu, Yi-Chen Zhang, Yijia Zhao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-12T03:03:28Z","title":"Continuous-variable measurement-device-independent quantum key distribution with virtual photon subtraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.04225","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:affedc9b0c8f8d1f30fd7d9284b98c8af00952e71881d9ff4b8019477bf8a38d","target":"record","created_at":"2026-05-18T00:17:24Z","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":"b2e15b25974de10dca12e4142f45c31481a59a2a24ffc313721b474c6dd403bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-12T03:03:28Z","title_canon_sha256":"e4208f8378926f24cde14570c4d4b90c3109493539b7893ba08a3c83cc139ce4"},"schema_version":"1.0","source":{"id":"1711.04225","kind":"arxiv","version":2}},"canonical_sha256":"24106747e9b34e949a4d1cfdb21597bfc48ec7abd6407a8f521277003397490d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24106747e9b34e949a4d1cfdb21597bfc48ec7abd6407a8f521277003397490d","first_computed_at":"2026-05-18T00:17:24.051686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:24.051686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bGEvvASfJvkUGa4SQzq9CVw9lJy4P4fDivGqUwSQLsylVHWLjyl2xRUqtRSi5irM3ir2yP7xsOKpW7xih0vMCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:24.052276Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.04225","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:affedc9b0c8f8d1f30fd7d9284b98c8af00952e71881d9ff4b8019477bf8a38d","sha256:5c30df5cda1ad712d55270bcda12756eb0a378600a0e8d252aaba1cc5a169b4d"],"state_sha256":"bc5379cb9e4b4ce5dfe87f64c6a2b9e268322410d15d22af0fb55fc118c8a2ad"}