{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WTINOUW7EYBGISPUFH2ZQHT6NA","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":"e221e4fee40f9262f82d4d20656d763160d86cf8b173f424f990784143d632f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-10T23:04:40Z","title_canon_sha256":"80867e8e9b2b65980954c80c2e39825250c45aa720f93e8a99e03755ccc4fb04"},"schema_version":"1.0","source":{"id":"2511.07683","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.07683","created_at":"2026-05-26T02:03:05Z"},{"alias_kind":"arxiv_version","alias_value":"2511.07683v2","created_at":"2026-05-26T02:03:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.07683","created_at":"2026-05-26T02:03:05Z"},{"alias_kind":"pith_short_12","alias_value":"WTINOUW7EYBG","created_at":"2026-05-26T02:03:05Z"},{"alias_kind":"pith_short_16","alias_value":"WTINOUW7EYBGISPU","created_at":"2026-05-26T02:03:05Z"},{"alias_kind":"pith_short_8","alias_value":"WTINOUW7","created_at":"2026-05-26T02:03:05Z"}],"graph_snapshots":[{"event_id":"sha256:66e2d52eea65704476a353fdad5d62c78fc016ff3eac32f6d8e1cb7323c8e689","target":"graph","created_at":"2026-05-26T02:03:05Z","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/2511.07683/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the problem of maximizing the sum-rate performance of a beyond-diagonal reconfigurable intelligent surface (BD-RIS)-aided multi-user (MU)-multiple-input single-output (MISO) system using fractional programming (FP) techniques. More specifically, we leverage the Lagrangian Dual Transform (LDT) and Quadratic Transform (QT) to derive an equivalent objective function which is then solved iteratively via a manifold optimization framework. It is shown that these techniques reduce the complexity of the optimization problem for the scattering matrix solution, while also providing notabl","authors_text":"Bruno Clerckx, Emil Bj\\\"ornson, Giuseppe Thadeu Freitas de Abreu, Iv\\'an Alexander Morales Sandoval, Kuranage Roche Rayan Ranasinghe, Marko Fidanovski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-10T23:04:40Z","title":"Fractional Programming and Manifold Optimization for Reciprocal BD-RIS Scattering Matrix Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.07683","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:d7492f3912c9330e113abd398b5b04ab22d8849c06de4553c2ffebe84b8910e9","target":"record","created_at":"2026-05-26T02:03:05Z","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":"e221e4fee40f9262f82d4d20656d763160d86cf8b173f424f990784143d632f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-10T23:04:40Z","title_canon_sha256":"80867e8e9b2b65980954c80c2e39825250c45aa720f93e8a99e03755ccc4fb04"},"schema_version":"1.0","source":{"id":"2511.07683","kind":"arxiv","version":2}},"canonical_sha256":"b4d0d752df26026449f429f5981e7e682abfe0a279f4611627acb0c471c48b42","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4d0d752df26026449f429f5981e7e682abfe0a279f4611627acb0c471c48b42","first_computed_at":"2026-05-26T02:03:05.068578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T02:03:05.068578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XZNqCm2CeIGTefIO72Pyelk/87A2gCoCMz5MOaVsG3PgK2eJJf9Z2GKF9wHWMxXNM+CZHmEgVB+XSnX8ggHIDA==","signature_status":"signed_v1","signed_at":"2026-05-26T02:03:05.069538Z","signed_message":"canonical_sha256_bytes"},"source_id":"2511.07683","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7492f3912c9330e113abd398b5b04ab22d8849c06de4553c2ffebe84b8910e9","sha256:66e2d52eea65704476a353fdad5d62c78fc016ff3eac32f6d8e1cb7323c8e689"],"state_sha256":"ba312ba62f5be9e4647540e9c88972d6676a85f1a8356daa34b47d637bf0c8e3"}