{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:7LOLVUJFWQ4VCSOU6G4DFTRGRH","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":"321e5f0924092f056d53bbc92f682fee9c0a4d57b3f9d92529e0b0b9e707e90f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-07-04T14:39:05Z","title_canon_sha256":"3b8879fe90c15a7f24290b00acfe5f9fdb878b6bd0f7fccfb5ccd287ec9e1b5b"},"schema_version":"1.0","source":{"id":"0807.0767","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.0767","created_at":"2026-07-04T17:18:42Z"},{"alias_kind":"arxiv_version","alias_value":"0807.0767v4","created_at":"2026-07-04T17:18:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.0767","created_at":"2026-07-04T17:18:42Z"},{"alias_kind":"pith_short_12","alias_value":"7LOLVUJFWQ4V","created_at":"2026-07-04T17:18:42Z"},{"alias_kind":"pith_short_16","alias_value":"7LOLVUJFWQ4VCSOU","created_at":"2026-07-04T17:18:42Z"},{"alias_kind":"pith_short_8","alias_value":"7LOLVUJF","created_at":"2026-07-04T17:18:42Z"}],"graph_snapshots":[{"event_id":"sha256:1950713c71ace0eb2bc7d87ab281f46d61b6da39b44b1121107ef2abac335996","target":"graph","created_at":"2026-07-04T17:18:42Z","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/0807.0767/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the security of the Bennett-Brassard 1984 (BB84) protocol for Quantum Key Distribution (QKD), in the presence of bit and basis dependent detector flaws. We suggest a powerful attack that can be used in systems with detector efficiency mismatch, even if the detector assignments are chosen randomly by Bob. A security proof is provided, valid for any basis dependent, possibly lossy, linear optical imperfections in the channel/receiver/detectors. The proof does not assume the so-called squashing detector model.","authors_text":"J. Skaar, L. Lydersen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-07-04T14:39:05Z","title":"Security of quantum key distribution with bit and basis dependent detector flaws"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.0767","kind":"arxiv","version":4},"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:b5c373871db61d67e3d9f485ec4a50f6d447eebd7491abe3e9bd46ccf140f598","target":"record","created_at":"2026-07-04T17:18:42Z","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":"321e5f0924092f056d53bbc92f682fee9c0a4d57b3f9d92529e0b0b9e707e90f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-07-04T14:39:05Z","title_canon_sha256":"3b8879fe90c15a7f24290b00acfe5f9fdb878b6bd0f7fccfb5ccd287ec9e1b5b"},"schema_version":"1.0","source":{"id":"0807.0767","kind":"arxiv","version":4}},"canonical_sha256":"fadcbad125b4395149d4f1b832ce2689dece4716040120953ee524283c0fdc8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fadcbad125b4395149d4f1b832ce2689dece4716040120953ee524283c0fdc8c","first_computed_at":"2026-07-04T17:18:42.245594Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:18:42.245594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s/w3XIycgDRDcnweYatscuOFCLowBY8lpx5+IX2wt4f/6Av7kpvLQP0sA8Of8XPfq//qljYW+dxKp2m8/wlmCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:18:42.245988Z","signed_message":"canonical_sha256_bytes"},"source_id":"0807.0767","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5c373871db61d67e3d9f485ec4a50f6d447eebd7491abe3e9bd46ccf140f598","sha256:1950713c71ace0eb2bc7d87ab281f46d61b6da39b44b1121107ef2abac335996"],"state_sha256":"0990ddb250146373b3336e11ff6cbadeb31e877dc3f6f02312e5d0cb74700449"}