{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:UZR2S6U5475C4QXUVDUEYPGZM5","short_pith_number":"pith:UZR2S6U5","canonical_record":{"source":{"id":"2411.08383","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2024-11-13T07:08:56Z","cross_cats_sorted":[],"title_canon_sha256":"9adcef36703ea59bec4484675cee098bdf955d0e623b32031cea36c22f19bd7f","abstract_canon_sha256":"9b4db84dc2b58e3ce4beef96aca71428ded00bde6c16888e3d25b07bd4ed3b60"},"schema_version":"1.0"},"canonical_sha256":"a663a97a9de7fa2e42f4a8e84c3cd967719d753c6787d89414f57e3997ffbbd9","source":{"kind":"arxiv","id":"2411.08383","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.08383","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"arxiv_version","alias_value":"2411.08383v1","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.08383","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_12","alias_value":"UZR2S6U5475C","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_16","alias_value":"UZR2S6U5475C4QXU","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_8","alias_value":"UZR2S6U5","created_at":"2026-07-05T09:34:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:UZR2S6U5475C4QXUVDUEYPGZM5","target":"record","payload":{"canonical_record":{"source":{"id":"2411.08383","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2024-11-13T07:08:56Z","cross_cats_sorted":[],"title_canon_sha256":"9adcef36703ea59bec4484675cee098bdf955d0e623b32031cea36c22f19bd7f","abstract_canon_sha256":"9b4db84dc2b58e3ce4beef96aca71428ded00bde6c16888e3d25b07bd4ed3b60"},"schema_version":"1.0"},"canonical_sha256":"a663a97a9de7fa2e42f4a8e84c3cd967719d753c6787d89414f57e3997ffbbd9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:34:46.560848Z","signature_b64":"cYuRUHoeTm/5NNsb5DP/YfaOZsXfvd+pb9SSg3sAHRoVA83Smg0yQ1cYDy5pgRtZj0yi4k3oWqNe2T1ztlL1AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a663a97a9de7fa2e42f4a8e84c3cd967719d753c6787d89414f57e3997ffbbd9","last_reissued_at":"2026-07-05T09:34:46.560436Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:34:46.560436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.08383","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":"2026-07-05T09:34:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3y9tmB+GbEpodjFgEZZ1nH2OFmikdTxwDSZWpmXot9JhuNQvVV3xX0YgaOqVRHs2DHqp/WSe4YYp2nnqH0lcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T07:06:44.159182Z"},"content_sha256":"4297f8ddf943fd27bde728a4b2ac252e7893ff2321574d3d3098699f11842b13","schema_version":"1.0","event_id":"sha256:4297f8ddf943fd27bde728a4b2ac252e7893ff2321574d3d3098699f11842b13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:UZR2S6U5475C4QXUVDUEYPGZM5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FAS-Driven Spectrum Sensing for Cognitive Radio Networks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Chau Yuen, George K. Karagiannidis, Hyundong Shin, Junteng Yao, Kai-Kit Wong, Maged Elkashlan, Ming Jin, Tuo Wu","submitted_at":"2024-11-13T07:08:56Z","abstract_excerpt":"Cognitive radio (CR) networks face significant challenges in spectrum sensing, especially under spectrum scarcity. Fluid antenna systems (FAS) can offer an unorthodox solution due to their ability to dynamically adjust antenna positions for improved channel gain. In this letter, we study a FAS-driven CR setup where a secondary user (SU) adjusts the positions of fluid antennas to detect signals from the primary user (PU). We aim to maximize the detection probability under the constraints of the false alarm probability and the received beamforming of the SU. To address this problem, we first der"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.08383","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/2411.08383/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":"2026-07-05T09:34:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a0EQXgBj8n5FoBGtl5tsFWOkEXZQC8uViQshMoYvuCEsVuCJdvq/dNq51p7DqybbpjAPF8sW4flbRtd6R/D/Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T07:06:44.159716Z"},"content_sha256":"6ad032f475f19ebcb8e9513bfb2601d12e7e4c4b4a44208eda928c29efbcc37d","schema_version":"1.0","event_id":"sha256:6ad032f475f19ebcb8e9513bfb2601d12e7e4c4b4a44208eda928c29efbcc37d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UZR2S6U5475C4QXUVDUEYPGZM5/bundle.json","state_url":"https://pith.science/pith/UZR2S6U5475C4QXUVDUEYPGZM5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UZR2S6U5475C4QXUVDUEYPGZM5/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":"2026-08-20T07:06:44Z","links":{"resolver":"https://pith.science/pith/UZR2S6U5475C4QXUVDUEYPGZM5","bundle":"https://pith.science/pith/UZR2S6U5475C4QXUVDUEYPGZM5/bundle.json","state":"https://pith.science/pith/UZR2S6U5475C4QXUVDUEYPGZM5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UZR2S6U5475C4QXUVDUEYPGZM5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UZR2S6U5475C4QXUVDUEYPGZM5","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":"9b4db84dc2b58e3ce4beef96aca71428ded00bde6c16888e3d25b07bd4ed3b60","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2024-11-13T07:08:56Z","title_canon_sha256":"9adcef36703ea59bec4484675cee098bdf955d0e623b32031cea36c22f19bd7f"},"schema_version":"1.0","source":{"id":"2411.08383","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.08383","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"arxiv_version","alias_value":"2411.08383v1","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.08383","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_12","alias_value":"UZR2S6U5475C","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_16","alias_value":"UZR2S6U5475C4QXU","created_at":"2026-07-05T09:34:46Z"},{"alias_kind":"pith_short_8","alias_value":"UZR2S6U5","created_at":"2026-07-05T09:34:46Z"}],"graph_snapshots":[{"event_id":"sha256:6ad032f475f19ebcb8e9513bfb2601d12e7e4c4b4a44208eda928c29efbcc37d","target":"graph","created_at":"2026-07-05T09:34:46Z","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/2411.08383/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cognitive radio (CR) networks face significant challenges in spectrum sensing, especially under spectrum scarcity. Fluid antenna systems (FAS) can offer an unorthodox solution due to their ability to dynamically adjust antenna positions for improved channel gain. In this letter, we study a FAS-driven CR setup where a secondary user (SU) adjusts the positions of fluid antennas to detect signals from the primary user (PU). We aim to maximize the detection probability under the constraints of the false alarm probability and the received beamforming of the SU. To address this problem, we first der","authors_text":"Chau Yuen, George K. Karagiannidis, Hyundong Shin, Junteng Yao, Kai-Kit Wong, Maged Elkashlan, Ming Jin, Tuo Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2024-11-13T07:08:56Z","title":"FAS-Driven Spectrum Sensing for Cognitive Radio Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.08383","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":"sha256:4297f8ddf943fd27bde728a4b2ac252e7893ff2321574d3d3098699f11842b13","target":"record","created_at":"2026-07-05T09:34:46Z","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":"9b4db84dc2b58e3ce4beef96aca71428ded00bde6c16888e3d25b07bd4ed3b60","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2024-11-13T07:08:56Z","title_canon_sha256":"9adcef36703ea59bec4484675cee098bdf955d0e623b32031cea36c22f19bd7f"},"schema_version":"1.0","source":{"id":"2411.08383","kind":"arxiv","version":1}},"canonical_sha256":"a663a97a9de7fa2e42f4a8e84c3cd967719d753c6787d89414f57e3997ffbbd9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a663a97a9de7fa2e42f4a8e84c3cd967719d753c6787d89414f57e3997ffbbd9","first_computed_at":"2026-07-05T09:34:46.560436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:34:46.560436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cYuRUHoeTm/5NNsb5DP/YfaOZsXfvd+pb9SSg3sAHRoVA83Smg0yQ1cYDy5pgRtZj0yi4k3oWqNe2T1ztlL1AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:34:46.560848Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.08383","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4297f8ddf943fd27bde728a4b2ac252e7893ff2321574d3d3098699f11842b13","sha256:6ad032f475f19ebcb8e9513bfb2601d12e7e4c4b4a44208eda928c29efbcc37d"],"state_sha256":"70e3745f4704b065a26f95684ff16d0f11f1ca51a2c449b4fcdcb116420213fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pmp4Op/5Gtay0SN70V2M38wr3EOSILnn/FN3qUcCusBuB4kbRDqsS4dWWBX0mTkcNbZN13XEC32hPOdaIUltAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T07:06:44.164730Z","bundle_sha256":"fe3e6992273dc3486c69d70912fa11cafceb694d9c6dfd6909377d713b5b589f"}}