{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:UKZPN2SPXQMSAPMZASH5F2R2RV","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":"d80664dc03f104c9292165c3cbd278a97d3d602218493f9acf44e8f6159a8f9c","cross_cats_sorted":["cs.CR"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-04T14:34:13Z","title_canon_sha256":"f1f9be811f896749a4790db2c4cfdac7d098496c22ed2da992cbd6330b94179e"},"schema_version":"1.0","source":{"id":"2210.01636","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.01636","created_at":"2026-07-05T05:25:51Z"},{"alias_kind":"arxiv_version","alias_value":"2210.01636v2","created_at":"2026-07-05T05:25:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.01636","created_at":"2026-07-05T05:25:51Z"},{"alias_kind":"pith_short_12","alias_value":"UKZPN2SPXQMS","created_at":"2026-07-05T05:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"UKZPN2SPXQMSAPMZ","created_at":"2026-07-05T05:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"UKZPN2SP","created_at":"2026-07-05T05:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:d7cff53e6317e1ee23723abcdb55d751c428e3297c6f97018c76d9779faff382","target":"graph","created_at":"2026-07-05T05:25:51Z","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/2210.01636/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recently published patent (https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064) has claimed the development of a novel quantum key distribution protocol purporting to achieve long-range quantum security without trusted nodes and without use of quantum repeaters. Here we present a straightforward analysis of this claim, and reach the conclusion that it is largely unfounded.","authors_text":"Adrian Wonfor, Andreas Poppe, Benoit Tranier, Bruno Huttner, Eleni Diamanti, Florian Fr\\\"owis, Hannes H\\\"ubel, Hugo Zbinden, Joshua A. Slater, Philippe Grangier, Romain All\\'eaume, Tim Spiller, Vicente Martin, Wolfgang Tittel","cross_cats":["cs.CR"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-04T14:34:13Z","title":"Long-Range QKD without Trusted Nodes is Not Possible with Current Technology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.01636","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:cefee1fcd0fba3ddd5a9fb368c5d1907c6fa9cf1b76e231bc77540588bcb7117","target":"record","created_at":"2026-07-05T05:25:51Z","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":"d80664dc03f104c9292165c3cbd278a97d3d602218493f9acf44e8f6159a8f9c","cross_cats_sorted":["cs.CR"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-04T14:34:13Z","title_canon_sha256":"f1f9be811f896749a4790db2c4cfdac7d098496c22ed2da992cbd6330b94179e"},"schema_version":"1.0","source":{"id":"2210.01636","kind":"arxiv","version":2}},"canonical_sha256":"a2b2f6ea4fbc19203d99048fd2ea3a8d63ab70c8c857d16f18d942212db0faf5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2b2f6ea4fbc19203d99048fd2ea3a8d63ab70c8c857d16f18d942212db0faf5","first_computed_at":"2026-07-05T05:25:51.085892Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:25:51.085892Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6slCeh+ztiSyYQ9XnMa5VIRrRrYohkx4soCM8jz6yyPwlMWOigAr+g+F7wSH0rwGew4/IXXrWAb8XcHwLd0oDA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:25:51.086370Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.01636","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cefee1fcd0fba3ddd5a9fb368c5d1907c6fa9cf1b76e231bc77540588bcb7117","sha256:d7cff53e6317e1ee23723abcdb55d751c428e3297c6f97018c76d9779faff382"],"state_sha256":"f721ec38367217b52c94fdcd61df5e493b3ff42401d091b30e48e7c6a99a8262"}