{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:HD2LTUFBVEDF2O5RPF2UNSEAS3","short_pith_number":"pith:HD2LTUFB","schema_version":"1.0","canonical_sha256":"38f4b9d0a1a9065d3bb1797546c88096f550cf904a8d67418c701f165d1981ac","source":{"kind":"arxiv","id":"2607.25365","version":1},"attestation_state":"computed","paper":{"title":"Learned Blockwise Port Activation for Real Time Beamforming in Fluid Antenna Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Hanjiang Hong, Hao Jiang, Kai-Kit Wong, Wenjun Zhang, Yin Xu, Yuanhui Wu, Zaichen Zhang, Zhentian Zhang","submitted_at":"2026-07-28T07:16:25Z","abstract_excerpt":"Fluid antenna arrays (FAAs), support multiuser downlink transmission by activating a subset of reconfigurable ports. The activation mask jointly determines the effective channel and the sparse radiating aperture, which requires a balance among sum rate, sidelobe suppression, hardware constraints, and online complexity. Channel driven selection can cluster active ports and increase sidelobes, whereas sidelobe oriented synthesis is typically channel independent and can sacrifice sum rate. This paper proposes learned blockwise port activation (L-BPA), for real time sidelobe aware FAA downlink bea"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2607.25365","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2026-07-28T07:16:25Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"197a738951c713bcf0ae4c7485ced94e8ca2dc1025e70fa0a495f125036f9749","abstract_canon_sha256":"32a6142376c82c804161ac99156f055ebb68107128d0d7aeef724b2994a61bf3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-29T01:25:11.752026Z","signature_b64":"v2FoIeQHXU23ze5BSqOz9mvjauOBzjtM0NX2Kx4hc3Bm904DBoxhgPLvrjt04uPXwMF+MsvE3AZn+YyPi7FkAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38f4b9d0a1a9065d3bb1797546c88096f550cf904a8d67418c701f165d1981ac","last_reissued_at":"2026-07-29T01:25:11.751212Z","signature_status":"signed_v1","first_computed_at":"2026-07-29T01:25:11.751212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Learned Blockwise Port Activation for Real Time Beamforming in Fluid Antenna Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Hanjiang Hong, Hao Jiang, Kai-Kit Wong, Wenjun Zhang, Yin Xu, Yuanhui Wu, Zaichen Zhang, Zhentian Zhang","submitted_at":"2026-07-28T07:16:25Z","abstract_excerpt":"Fluid antenna arrays (FAAs), support multiuser downlink transmission by activating a subset of reconfigurable ports. The activation mask jointly determines the effective channel and the sparse radiating aperture, which requires a balance among sum rate, sidelobe suppression, hardware constraints, and online complexity. Channel driven selection can cluster active ports and increase sidelobes, whereas sidelobe oriented synthesis is typically channel independent and can sacrifice sum rate. This paper proposes learned blockwise port activation (L-BPA), for real time sidelobe aware FAA downlink bea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.25365","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/2607.25365/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2607.25365","created_at":"2026-07-29T01:25:11.751637+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.25365v1","created_at":"2026-07-29T01:25:11.751637+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.25365","created_at":"2026-07-29T01:25:11.751637+00:00"},{"alias_kind":"pith_short_12","alias_value":"HD2LTUFBVEDF","created_at":"2026-07-29T01:25:11.751637+00:00"},{"alias_kind":"pith_short_16","alias_value":"HD2LTUFBVEDF2O5R","created_at":"2026-07-29T01:25:11.751637+00:00"},{"alias_kind":"pith_short_8","alias_value":"HD2LTUFB","created_at":"2026-07-29T01:25:11.751637+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3","json":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3.json","graph_json":"https://pith.science/api/pith-number/HD2LTUFBVEDF2O5RPF2UNSEAS3/graph.json","events_json":"https://pith.science/api/pith-number/HD2LTUFBVEDF2O5RPF2UNSEAS3/events.json","paper":"https://pith.science/paper/HD2LTUFB"},"agent_actions":{"view_html":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3","download_json":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3.json","view_paper":"https://pith.science/paper/HD2LTUFB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.25365&json=true","fetch_graph":"https://pith.science/api/pith-number/HD2LTUFBVEDF2O5RPF2UNSEAS3/graph.json","fetch_events":"https://pith.science/api/pith-number/HD2LTUFBVEDF2O5RPF2UNSEAS3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3/action/storage_attestation","attest_author":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3/action/author_attestation","sign_citation":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3/action/citation_signature","submit_replication":"https://pith.science/pith/HD2LTUFBVEDF2O5RPF2UNSEAS3/action/replication_record"}},"created_at":"2026-07-29T01:25:11.751637+00:00","updated_at":"2026-07-29T01:25:11.751637+00:00"}