{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DF5UCW75AQ3KGARKAVBCWXTWXJ","short_pith_number":"pith:DF5UCW75","canonical_record":{"source":{"id":"1908.03174","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-08-08T17:08:19Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0b9bfaf6442a1c75c04ff4f7beae3928a064a10dd4a5a86acedee886bffa8b24","abstract_canon_sha256":"8870896b5fbc873beeee161929d34e5587529b955401a49600b29c026e231d30"},"schema_version":"1.0"},"canonical_sha256":"197b415bfd0436a3022a05422b5e76ba424023b8d55423672955a4adef01fe3d","source":{"kind":"arxiv","id":"1908.03174","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03174","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03174v1","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03174","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_12","alias_value":"DF5UCW75AQ3K","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_16","alias_value":"DF5UCW75AQ3KGARK","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_8","alias_value":"DF5UCW75","created_at":"2026-07-04T23:52:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DF5UCW75AQ3KGARKAVBCWXTWXJ","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03174","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-08-08T17:08:19Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"0b9bfaf6442a1c75c04ff4f7beae3928a064a10dd4a5a86acedee886bffa8b24","abstract_canon_sha256":"8870896b5fbc873beeee161929d34e5587529b955401a49600b29c026e231d30"},"schema_version":"1.0"},"canonical_sha256":"197b415bfd0436a3022a05422b5e76ba424023b8d55423672955a4adef01fe3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:26.843005Z","signature_b64":"ejSPJ6TUX9EHXW0e879NzwXrI4zA94vAKGQICT8wHi4QAInwR+vOC2xQI72YpL+U2TRIPwf8EXw+hpCs+dB7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"197b415bfd0436a3022a05422b5e76ba424023b8d55423672955a4adef01fe3d","last_reissued_at":"2026-07-04T23:52:26.842655Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:26.842655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03174","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":"2026-07-04T23:52:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GvzK3FwtpnclrLBh5IBeMEX3Y0Vhk3EJ2fU6yPM8vjyFuK+pZcoch4tkbhOwMOWPStP07NDeqh56ZOXDpX0ABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:20:12.210506Z"},"content_sha256":"2889e45f61ab85e731dce0f7bb69482bca5eb7c08bf0c0735ec03c6fe765b680","schema_version":"1.0","event_id":"sha256:2889e45f61ab85e731dce0f7bb69482bca5eb7c08bf0c0735ec03c6fe765b680"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DF5UCW75AQ3KGARKAVBCWXTWXJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rethinking Secure Precoding via Interference Exploitation: A Smart Eavesdropper Perspective","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"A. Lee Swindlehurst, Pinyi Ren, Qian Xu","submitted_at":"2019-08-08T17:08:19Z","abstract_excerpt":"Based on the concept of constructive interference (CI), multiuser interference (MUI) has recently been shown to be beneficial for communication secrecy. A few CI-based secure precoding algorithms have been proposed that use both the channel state information (CSI) and knowledge of the instantaneous transmit symbols. In this paper, we examine the CI-based secure precoding problem with a focus on smart eavesdroppers that exploit statistical information gleaned from the precoded data for symbol detection. Moreover, the impact of correlation between the main and eavesdropper channels is taken into"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03174","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.03174/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T23:52:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6VlrpTbye8sOtepZz35Ks1u3Tv/afz0VmTJLVeXTbmtf+9hn/8w3WOpAcf+r6QvyOe0zWp2q7j9OGk+I7fULDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:20:12.211027Z"},"content_sha256":"96f432b5460ebf2fef84dd55a58680e44cbe1a1dd3b70084d44a51b717506481","schema_version":"1.0","event_id":"sha256:96f432b5460ebf2fef84dd55a58680e44cbe1a1dd3b70084d44a51b717506481"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/bundle.json","state_url":"https://pith.science/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/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":"2026-08-04T02:20:12Z","links":{"resolver":"https://pith.science/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ","bundle":"https://pith.science/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/bundle.json","state":"https://pith.science/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DF5UCW75AQ3KGARKAVBCWXTWXJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DF5UCW75AQ3KGARKAVBCWXTWXJ","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":"8870896b5fbc873beeee161929d34e5587529b955401a49600b29c026e231d30","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-08-08T17:08:19Z","title_canon_sha256":"0b9bfaf6442a1c75c04ff4f7beae3928a064a10dd4a5a86acedee886bffa8b24"},"schema_version":"1.0","source":{"id":"1908.03174","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03174","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03174v1","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03174","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_12","alias_value":"DF5UCW75AQ3K","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_16","alias_value":"DF5UCW75AQ3KGARK","created_at":"2026-07-04T23:52:26Z"},{"alias_kind":"pith_short_8","alias_value":"DF5UCW75","created_at":"2026-07-04T23:52:26Z"}],"graph_snapshots":[{"event_id":"sha256:96f432b5460ebf2fef84dd55a58680e44cbe1a1dd3b70084d44a51b717506481","target":"graph","created_at":"2026-07-04T23:52:26Z","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/1908.03174/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Based on the concept of constructive interference (CI), multiuser interference (MUI) has recently been shown to be beneficial for communication secrecy. A few CI-based secure precoding algorithms have been proposed that use both the channel state information (CSI) and knowledge of the instantaneous transmit symbols. In this paper, we examine the CI-based secure precoding problem with a focus on smart eavesdroppers that exploit statistical information gleaned from the precoded data for symbol detection. Moreover, the impact of correlation between the main and eavesdropper channels is taken into","authors_text":"A. Lee Swindlehurst, Pinyi Ren, Qian Xu","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-08-08T17:08:19Z","title":"Rethinking Secure Precoding via Interference Exploitation: A Smart Eavesdropper Perspective"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03174","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":"sha256:2889e45f61ab85e731dce0f7bb69482bca5eb7c08bf0c0735ec03c6fe765b680","target":"record","created_at":"2026-07-04T23:52:26Z","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":"8870896b5fbc873beeee161929d34e5587529b955401a49600b29c026e231d30","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-08-08T17:08:19Z","title_canon_sha256":"0b9bfaf6442a1c75c04ff4f7beae3928a064a10dd4a5a86acedee886bffa8b24"},"schema_version":"1.0","source":{"id":"1908.03174","kind":"arxiv","version":1}},"canonical_sha256":"197b415bfd0436a3022a05422b5e76ba424023b8d55423672955a4adef01fe3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"197b415bfd0436a3022a05422b5e76ba424023b8d55423672955a4adef01fe3d","first_computed_at":"2026-07-04T23:52:26.842655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:26.842655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ejSPJ6TUX9EHXW0e879NzwXrI4zA94vAKGQICT8wHi4QAInwR+vOC2xQI72YpL+U2TRIPwf8EXw+hpCs+dB7BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:26.843005Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03174","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2889e45f61ab85e731dce0f7bb69482bca5eb7c08bf0c0735ec03c6fe765b680","sha256:96f432b5460ebf2fef84dd55a58680e44cbe1a1dd3b70084d44a51b717506481"],"state_sha256":"9a286cf56472594d957db0d0ce6cb5ecd0aa51fa0e6e50d4b4c6ba14668c85ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bXfsuRvxxjMiN50vUCqXD5xMjfkFmXEYoYdCampnthHlGOvNACEAVNbKVUZkXasIvNOHq7iYdjK09jIeG6ofDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T02:20:12.214553Z","bundle_sha256":"26418b17132520ec6280fbac5c440dbb2947037404990dd94416e4fd52a00a80"}}