{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VURJ67LRU5RLX4TDKDO7S6KUQ4","short_pith_number":"pith:VURJ67LR","canonical_record":{"source":{"id":"1511.01007","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-03T17:38:34Z","cross_cats_sorted":[],"title_canon_sha256":"a6ccc5db1bc9c46c32b8a8a1d60102c7ec7cc34c1b70c08ad76b061d11035484","abstract_canon_sha256":"e5606823419322b72ed8b49688e5b47398028c9dac59192e620d96ae6d3a6a12"},"schema_version":"1.0"},"canonical_sha256":"ad229f7d71a762bbf26350ddf97954872b9bcf4e648fb3cd5e45958471f3d093","source":{"kind":"arxiv","id":"1511.01007","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.01007","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"arxiv_version","alias_value":"1511.01007v1","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.01007","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"pith_short_12","alias_value":"VURJ67LRU5RL","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VURJ67LRU5RLX4TD","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VURJ67LR","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VURJ67LRU5RLX4TDKDO7S6KUQ4","target":"record","payload":{"canonical_record":{"source":{"id":"1511.01007","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-03T17:38:34Z","cross_cats_sorted":[],"title_canon_sha256":"a6ccc5db1bc9c46c32b8a8a1d60102c7ec7cc34c1b70c08ad76b061d11035484","abstract_canon_sha256":"e5606823419322b72ed8b49688e5b47398028c9dac59192e620d96ae6d3a6a12"},"schema_version":"1.0"},"canonical_sha256":"ad229f7d71a762bbf26350ddf97954872b9bcf4e648fb3cd5e45958471f3d093","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:52.124276Z","signature_b64":"KbSmYDsuubS7B5LKsiYSC4+iX7fGzLxZ6caAftrGqgKzagWU5M/02nOs45OiyM9P8vCX5BOrTZXQ5MLt3zKrCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad229f7d71a762bbf26350ddf97954872b9bcf4e648fb3cd5e45958471f3d093","last_reissued_at":"2026-05-18T01:10:52.123796Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:52.123796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.01007","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:10:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xnz6WPxiqNEtD1usNEqFZWX6DE9EdVci2BGE6K3YQ7XlUhEXR2LC9E5ufbfihIY60iyy1dsR77aFl94lG9dTCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T15:39:10.608630Z"},"content_sha256":"c6bd193bdf35f25575a1b159dff849e16cb4585146fb4961e95eabf3a0bc1ea8","schema_version":"1.0","event_id":"sha256:c6bd193bdf35f25575a1b159dff849e16cb4585146fb4961e95eabf3a0bc1ea8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VURJ67LRU5RLX4TDKDO7S6KUQ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum hacking: saturation attack on practical continuous-variable quantum key distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Hao Qin, Romain All\\'eaume, Rupesh Kumar","submitted_at":"2015-11-03T17:38:34Z","abstract_excerpt":"We identify and study a new security loophole in continuous-variable quantum key distribution (CV-QKD) implementations, related to the imperfect linearity of the homodyne detector. By exploiting this loophole, we propose an active side-channel attack on the Gaussian-modulated coherent state CV-QKD protocol combining an intercept-resend attack with an induced saturation of the homodyne detection on the receiver side (Bob). We show that an attacker can bias the excess noise estimation by displacing the quadratures of the coherent states received by Bob. We propose a saturation model that matches"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.01007","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:10:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m9dnjZY3ypnepQFSin/QOGr6s4NDhZtvGLVpVl7jIUV/qPtJ6HzCBnYBGg/VSXp1PWTHnl1mFuW+FG4objZ1Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T15:39:10.609294Z"},"content_sha256":"606da1cdba60dacbe57e4c00bd80b80a10c00a5b93905e7120560d9192a32aea","schema_version":"1.0","event_id":"sha256:606da1cdba60dacbe57e4c00bd80b80a10c00a5b93905e7120560d9192a32aea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/bundle.json","state_url":"https://pith.science/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T15:39:10Z","links":{"resolver":"https://pith.science/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4","bundle":"https://pith.science/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/bundle.json","state":"https://pith.science/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VURJ67LRU5RLX4TDKDO7S6KUQ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VURJ67LRU5RLX4TDKDO7S6KUQ4","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":"e5606823419322b72ed8b49688e5b47398028c9dac59192e620d96ae6d3a6a12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-03T17:38:34Z","title_canon_sha256":"a6ccc5db1bc9c46c32b8a8a1d60102c7ec7cc34c1b70c08ad76b061d11035484"},"schema_version":"1.0","source":{"id":"1511.01007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.01007","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"arxiv_version","alias_value":"1511.01007v1","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.01007","created_at":"2026-05-18T01:10:52Z"},{"alias_kind":"pith_short_12","alias_value":"VURJ67LRU5RL","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VURJ67LRU5RLX4TD","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VURJ67LR","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:606da1cdba60dacbe57e4c00bd80b80a10c00a5b93905e7120560d9192a32aea","target":"graph","created_at":"2026-05-18T01:10:52Z","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":"We identify and study a new security loophole in continuous-variable quantum key distribution (CV-QKD) implementations, related to the imperfect linearity of the homodyne detector. By exploiting this loophole, we propose an active side-channel attack on the Gaussian-modulated coherent state CV-QKD protocol combining an intercept-resend attack with an induced saturation of the homodyne detection on the receiver side (Bob). We show that an attacker can bias the excess noise estimation by displacing the quadratures of the coherent states received by Bob. We propose a saturation model that matches","authors_text":"Hao Qin, Romain All\\'eaume, Rupesh Kumar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-03T17:38:34Z","title":"Quantum hacking: saturation attack on practical continuous-variable quantum key distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.01007","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:c6bd193bdf35f25575a1b159dff849e16cb4585146fb4961e95eabf3a0bc1ea8","target":"record","created_at":"2026-05-18T01:10:52Z","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":"e5606823419322b72ed8b49688e5b47398028c9dac59192e620d96ae6d3a6a12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-03T17:38:34Z","title_canon_sha256":"a6ccc5db1bc9c46c32b8a8a1d60102c7ec7cc34c1b70c08ad76b061d11035484"},"schema_version":"1.0","source":{"id":"1511.01007","kind":"arxiv","version":1}},"canonical_sha256":"ad229f7d71a762bbf26350ddf97954872b9bcf4e648fb3cd5e45958471f3d093","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad229f7d71a762bbf26350ddf97954872b9bcf4e648fb3cd5e45958471f3d093","first_computed_at":"2026-05-18T01:10:52.123796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:52.123796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KbSmYDsuubS7B5LKsiYSC4+iX7fGzLxZ6caAftrGqgKzagWU5M/02nOs45OiyM9P8vCX5BOrTZXQ5MLt3zKrCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:52.124276Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.01007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6bd193bdf35f25575a1b159dff849e16cb4585146fb4961e95eabf3a0bc1ea8","sha256:606da1cdba60dacbe57e4c00bd80b80a10c00a5b93905e7120560d9192a32aea"],"state_sha256":"f67793cf6ea2187e05668095cd31a380b325d75bac6941bee9c732c1368cec82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9jVRfiLtvGmaV1ET561Bblu1CAZ2uviyBcnl9cM1XOxEg0RX9/Ld9q90ILXqIkENtlPZPGSsACSA3rq3SNZlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T15:39:10.613970Z","bundle_sha256":"a4503a929725e374723c09a75e4ec7d98435ba989e961421a6b94df6e0f87ee4"}}