{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2JSOZVK6YVNJLPL7346AGVHBW2","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":"7cb8d7ca8bda3f453fec27fee4fd2e6dde6b26d580c301472089c9608b35d4e8","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-06-25T12:33:29Z","title_canon_sha256":"2159a2e43a7c999f2f43cddc56c2595081cdcf8be43362439f7cde2b7f0239f0"},"schema_version":"1.0","source":{"id":"1406.6542","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6542","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6542v2","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6542","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"pith_short_12","alias_value":"2JSOZVK6YVNJ","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2JSOZVK6YVNJLPL7","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2JSOZVK6","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:ba5502b20b5ce4027596ed4a2dd9a5fbb1d8b3dd0e3f60219530f63194dcb8a9","target":"graph","created_at":"2026-05-18T00:59:02Z","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":"This paper studies robust resource allocation algorithm design for a multiuser multiple-input single-output (MISO) cognitive radio (CR) downlink communication network. We focus on a secondary system which provides unicast secure wireless layered video information to multiple single-antenna secondary receivers. The resource allocation algorithm design is formulated as a non-convex optimization problem for minimization of the total transmit power at the secondary transmitter. The proposed framework takes into account a quality of service (QoS) requirement regarding video communication secrecy in","authors_text":"Derrick Wing Kwan Ng, Hussein Alnuweiri, Mohammad Shaqfeh, Robert Schober","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-06-25T12:33:29Z","title":"Robust Layered Transmission in Secure MISO Multiuser Unicast Cognitive Radio Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6542","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":"sha256:6a6ddfb1b7afdbaead8aefa95d6830a7ff8bac97f11c50b2bf898b2681dac339","target":"record","created_at":"2026-05-18T00:59:02Z","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":"7cb8d7ca8bda3f453fec27fee4fd2e6dde6b26d580c301472089c9608b35d4e8","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-06-25T12:33:29Z","title_canon_sha256":"2159a2e43a7c999f2f43cddc56c2595081cdcf8be43362439f7cde2b7f0239f0"},"schema_version":"1.0","source":{"id":"1406.6542","kind":"arxiv","version":2}},"canonical_sha256":"d264ecd55ec55a95bd7fdf3c0354e1b6972aef00296976a2209cb618f366b097","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d264ecd55ec55a95bd7fdf3c0354e1b6972aef00296976a2209cb618f366b097","first_computed_at":"2026-05-18T00:59:02.955747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:02.955747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"shHoeihzf0St8M4j/inmo3MZsUfhREWIGAxLETH1n8cIjTZSqaoXpqvTh076zjRhAL/wnkkZYHK/rvJa6Y/VBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:02.956398Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.6542","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a6ddfb1b7afdbaead8aefa95d6830a7ff8bac97f11c50b2bf898b2681dac339","sha256:ba5502b20b5ce4027596ed4a2dd9a5fbb1d8b3dd0e3f60219530f63194dcb8a9"],"state_sha256":"3501bb5b0a60c2f6b640f840873ea0676a6fde4a5584201156096a98619f5c98"}