{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:44Q2GV2GEO3S775RUVDI3JT3J6","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":"05e7ffd510ff2fad2c37bc604efb0c73ed7b2bc76b810a2cd9b7a394f04ae886","cross_cats_sorted":["cs.CR","cs.NI","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-12-21T13:00:28Z","title_canon_sha256":"2aa4a44bc54cca50852f3707c5dc1db912f24cd6416152bfc80f270e37e26e1a"},"schema_version":"1.0","source":{"id":"2112.11165","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.11165","created_at":"2026-07-05T05:59:19Z"},{"alias_kind":"arxiv_version","alias_value":"2112.11165v3","created_at":"2026-07-05T05:59:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.11165","created_at":"2026-07-05T05:59:19Z"},{"alias_kind":"pith_short_12","alias_value":"44Q2GV2GEO3S","created_at":"2026-07-05T05:59:19Z"},{"alias_kind":"pith_short_16","alias_value":"44Q2GV2GEO3S775R","created_at":"2026-07-05T05:59:19Z"},{"alias_kind":"pith_short_8","alias_value":"44Q2GV2G","created_at":"2026-07-05T05:59:19Z"}],"graph_snapshots":[{"event_id":"sha256:503c8dd2fd6005d42d51170024face5c6aa20b38ca209875f6e2067190b8f976","target":"graph","created_at":"2026-07-05T05:59:19Z","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/2112.11165/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Implementation of a twin-field quantum key distribution network faces limitations, including the low tolerance of interference errors for phase-matching type protocols and the strict constraint regarding intensity and probability for sending-or-not-sending type protocols. Here, we propose a two-photon twin-field quantum key distribution protocol and achieve twin-field-type two-photon interference through post-matching phase-correlated single-photon interference events. We exploit the non-interference mode as the code mode to highly tolerate interference errors, and the two-photon interference ","authors_text":"Chen-Xun Weng, Hua-Lei Yin, Yang Wang, Yao Fu, Yuan-Mei Xie, Yu-Shuo Lu, Zeng-Bing Chen","cross_cats":["cs.CR","cs.NI","physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-12-21T13:00:28Z","title":"Scalable High-Rate Twin-Field Quantum Key Distribution Networks without Constraint of Probability and Intensity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.11165","kind":"arxiv","version":3},"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":"sha256:2503acf643b53756b322ead2cc506d7b27cc2814baf7d940602f841718f5c4c7","target":"record","created_at":"2026-07-05T05:59:19Z","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":"05e7ffd510ff2fad2c37bc604efb0c73ed7b2bc76b810a2cd9b7a394f04ae886","cross_cats_sorted":["cs.CR","cs.NI","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-12-21T13:00:28Z","title_canon_sha256":"2aa4a44bc54cca50852f3707c5dc1db912f24cd6416152bfc80f270e37e26e1a"},"schema_version":"1.0","source":{"id":"2112.11165","kind":"arxiv","version":3}},"canonical_sha256":"e721a3574623b72fffb1a5468da67b4f90c53ded4ab2ee1df3829bf0926de56f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e721a3574623b72fffb1a5468da67b4f90c53ded4ab2ee1df3829bf0926de56f","first_computed_at":"2026-07-05T05:59:19.872006Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:59:19.872006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VDQCUIwbYAKOPVWV1TF/msPylu201Ki7bwRQTfGG8tHzXR3V3yyX/2y01r0yAsUiu0BHVzs4YfISBhlVyq+yDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:59:19.872400Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.11165","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2503acf643b53756b322ead2cc506d7b27cc2814baf7d940602f841718f5c4c7","sha256:503c8dd2fd6005d42d51170024face5c6aa20b38ca209875f6e2067190b8f976"],"state_sha256":"ba79ac19ed1cf8c65c0c1d52b55ffc1cedc6fb829f6a45c2aa2da16c8c06153e"}