{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MOTVOQCRO4DYFLBNIAJWB62VJ2","short_pith_number":"pith:MOTVOQCR","canonical_record":{"source":{"id":"2505.10306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-15T13:53:33Z","cross_cats_sorted":[],"title_canon_sha256":"14f9f64558e4585c2046c86922f08c755c8753ccf5e6ef0b540788c7c3a82561","abstract_canon_sha256":"beac68c306ea6a7317c8afe4c2d7db30539397b1575910ff411dbac2c6a30f59"},"schema_version":"1.0"},"canonical_sha256":"63a7574051770782ac2d401360fb554eb2bed41efec9bf563e073f5b7a4e9957","source":{"kind":"arxiv","id":"2505.10306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10306","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10306v1","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10306","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"MOTVOQCRO4DY","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_16","alias_value":"MOTVOQCRO4DYFLBN","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_8","alias_value":"MOTVOQCR","created_at":"2026-07-05T11:03:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MOTVOQCRO4DYFLBNIAJWB62VJ2","target":"record","payload":{"canonical_record":{"source":{"id":"2505.10306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-15T13:53:33Z","cross_cats_sorted":[],"title_canon_sha256":"14f9f64558e4585c2046c86922f08c755c8753ccf5e6ef0b540788c7c3a82561","abstract_canon_sha256":"beac68c306ea6a7317c8afe4c2d7db30539397b1575910ff411dbac2c6a30f59"},"schema_version":"1.0"},"canonical_sha256":"63a7574051770782ac2d401360fb554eb2bed41efec9bf563e073f5b7a4e9957","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:03:36.574207Z","signature_b64":"8gIXh3bp8dykIOkAtZJvnL7zTZVLUR5cHWdHrK2ccnMATTX7Rp+/jy1q6usFQglzpOZd6l7jncKYgm2b6sxHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63a7574051770782ac2d401360fb554eb2bed41efec9bf563e073f5b7a4e9957","last_reissued_at":"2026-07-05T11:03:36.573722Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:03:36.573722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.10306","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":"2026-07-05T11:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KmT8b8U6mL8Flh3JfjS+f9ncPrG/VNAD9TY7dRUYZkCuRyO9w5V4Lq7TMro317w+e4OmtXHruHqkBaUenYpWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:52:27.969567Z"},"content_sha256":"02862f8dad254bc5f625e741e431a8a116ac5da5e84427bc231c38b439fbb6c9","schema_version":"1.0","event_id":"sha256:02862f8dad254bc5f625e741e431a8a116ac5da5e84427bc231c38b439fbb6c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MOTVOQCRO4DYFLBNIAJWB62VJ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ray Antenna Array Achieves Uniform Angular Resolution Cost-Effectively for Low-Altitude UAV Swarm ISAC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Haoyu Jiang, Yong Zeng","submitted_at":"2025-05-15T13:53:33Z","abstract_excerpt":"Ray antenna array (RAA) is a novel multi-antenna architecture comprising massive low-cost antenna elements and a few radio-frequency (RF) chains. The antenna elements are arranged in a novel ray-like structure, where each ray corresponds to a simple uniform linear array (sULA) with deliberately designed orientation and all its antenna elements are directly connected. By further designing a ray selection network (RSN), appropriate sULAs are selected to connect to the RF chains for further baseband processing. RAA has three appealing advantages: (i) dramatically reduced hardware cost since no ph"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10306","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/2505.10306/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":"2026-07-05T11:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5qdhQQUNjj9ICYeb2o3WdvD8xQ/q2I/f8ycKzhzia3f6JiM2tAjkFsEc/bbSl782/9SZEF8EBMYwV89VHw75Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:52:27.970470Z"},"content_sha256":"3b99c1f16e301e7c1747da97ba3cd2fb3c77e1e18a19270a39a021fbcef775e9","schema_version":"1.0","event_id":"sha256:3b99c1f16e301e7c1747da97ba3cd2fb3c77e1e18a19270a39a021fbcef775e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/bundle.json","state_url":"https://pith.science/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/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":"2026-08-06T05:52:27Z","links":{"resolver":"https://pith.science/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2","bundle":"https://pith.science/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/bundle.json","state":"https://pith.science/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MOTVOQCRO4DYFLBNIAJWB62VJ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MOTVOQCRO4DYFLBNIAJWB62VJ2","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":"beac68c306ea6a7317c8afe4c2d7db30539397b1575910ff411dbac2c6a30f59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-15T13:53:33Z","title_canon_sha256":"14f9f64558e4585c2046c86922f08c755c8753ccf5e6ef0b540788c7c3a82561"},"schema_version":"1.0","source":{"id":"2505.10306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10306","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10306v1","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10306","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"MOTVOQCRO4DY","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_16","alias_value":"MOTVOQCRO4DYFLBN","created_at":"2026-07-05T11:03:36Z"},{"alias_kind":"pith_short_8","alias_value":"MOTVOQCR","created_at":"2026-07-05T11:03:36Z"}],"graph_snapshots":[{"event_id":"sha256:3b99c1f16e301e7c1747da97ba3cd2fb3c77e1e18a19270a39a021fbcef775e9","target":"graph","created_at":"2026-07-05T11:03:36Z","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/2505.10306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ray antenna array (RAA) is a novel multi-antenna architecture comprising massive low-cost antenna elements and a few radio-frequency (RF) chains. The antenna elements are arranged in a novel ray-like structure, where each ray corresponds to a simple uniform linear array (sULA) with deliberately designed orientation and all its antenna elements are directly connected. By further designing a ray selection network (RSN), appropriate sULAs are selected to connect to the RF chains for further baseband processing. RAA has three appealing advantages: (i) dramatically reduced hardware cost since no ph","authors_text":"Haoyu Jiang, Yong Zeng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-15T13:53:33Z","title":"Ray Antenna Array Achieves Uniform Angular Resolution Cost-Effectively for Low-Altitude UAV Swarm ISAC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10306","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":"sha256:02862f8dad254bc5f625e741e431a8a116ac5da5e84427bc231c38b439fbb6c9","target":"record","created_at":"2026-07-05T11:03:36Z","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":"beac68c306ea6a7317c8afe4c2d7db30539397b1575910ff411dbac2c6a30f59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-15T13:53:33Z","title_canon_sha256":"14f9f64558e4585c2046c86922f08c755c8753ccf5e6ef0b540788c7c3a82561"},"schema_version":"1.0","source":{"id":"2505.10306","kind":"arxiv","version":1}},"canonical_sha256":"63a7574051770782ac2d401360fb554eb2bed41efec9bf563e073f5b7a4e9957","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63a7574051770782ac2d401360fb554eb2bed41efec9bf563e073f5b7a4e9957","first_computed_at":"2026-07-05T11:03:36.573722Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:03:36.573722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8gIXh3bp8dykIOkAtZJvnL7zTZVLUR5cHWdHrK2ccnMATTX7Rp+/jy1q6usFQglzpOZd6l7jncKYgm2b6sxHBA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:03:36.574207Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.10306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02862f8dad254bc5f625e741e431a8a116ac5da5e84427bc231c38b439fbb6c9","sha256:3b99c1f16e301e7c1747da97ba3cd2fb3c77e1e18a19270a39a021fbcef775e9"],"state_sha256":"6cff23ab573e838bfe523391d66f67b519d7171dcbc31fdcfbe4cbf6181997f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ak/wtZv/NoNuSJVy+12NiP/xeekXY08yxpxWbG3nNlyJuuqKNJIjERDdVFEbdVDhyjxBJhc90Cf2aJOl4t4CCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:52:27.978279Z","bundle_sha256":"4a843f216457357e4aa5ac5c732a0ace7327ec9668b86848fb957f4b40424723"}}