{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:JNQG3ASZZNC354AVOM3F3B574H","short_pith_number":"pith:JNQG3ASZ","canonical_record":{"source":{"id":"2409.14297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2024-09-22T02:15:05Z","cross_cats_sorted":[],"title_canon_sha256":"8d6c95494d24d4e716f114ebcf057043ef32bb1cda9e33505bf99150f8ba38c7","abstract_canon_sha256":"c98fb2e1d1366c2fabd426517e21f7bd8e75f25de1744201592e20346255afa6"},"schema_version":"1.0"},"canonical_sha256":"4b606d8259cb45bef01573365d87bfe1fe11c97801b9c4d0c07ab4c1e119039f","source":{"kind":"arxiv","id":"2409.14297","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.14297","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"arxiv_version","alias_value":"2409.14297v2","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.14297","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_12","alias_value":"JNQG3ASZZNC3","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_16","alias_value":"JNQG3ASZZNC354AV","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_8","alias_value":"JNQG3ASZ","created_at":"2026-07-05T09:59:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:JNQG3ASZZNC354AVOM3F3B574H","target":"record","payload":{"canonical_record":{"source":{"id":"2409.14297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2024-09-22T02:15:05Z","cross_cats_sorted":[],"title_canon_sha256":"8d6c95494d24d4e716f114ebcf057043ef32bb1cda9e33505bf99150f8ba38c7","abstract_canon_sha256":"c98fb2e1d1366c2fabd426517e21f7bd8e75f25de1744201592e20346255afa6"},"schema_version":"1.0"},"canonical_sha256":"4b606d8259cb45bef01573365d87bfe1fe11c97801b9c4d0c07ab4c1e119039f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:59:52.830088Z","signature_b64":"gnGhTVlEwbgKYpbjDpN9BSBQZ7eUkt0+X4cPVjUAXJ0mIVhQthxqbjNppHaXhu6CHsguNHSKCDMWx76bczQ3CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b606d8259cb45bef01573365d87bfe1fe11c97801b9c4d0c07ab4c1e119039f","last_reissued_at":"2026-07-05T09:59:52.829738Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:59:52.829738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.14297","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:59:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7CyTaEY7gl+ST6atMc656k1J9zZWJ4sZUJY1eUcYaboX2/ULONaJaXwwDPPkiZ9UoiW6MMbXcFz/uuatNhy2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T00:43:50.751476Z"},"content_sha256":"1568a3e57dc371b1e1794a57a0ec9d1776b481e01552046bb3db40f49d2fc0b4","schema_version":"1.0","event_id":"sha256:1568a3e57dc371b1e1794a57a0ec9d1776b481e01552046bb3db40f49d2fc0b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:JNQG3ASZZNC354AVOM3F3B574H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DNN-based Enhanced DOA Sensing via Massive MIMO Receiver with Switches-based Hybrid Architecture","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Feng Shu, Jiangzhou Wang, Jun Zou, Kang Wei, Linqiong Jia, Yaoliang Song, Yifan Li","submitted_at":"2024-09-22T02:15:05Z","abstract_excerpt":"Switches-based hybrid architecture has attracted much attention, especially in directional-of-arrival (DOA) sensing, due to its ability of significantly reducing the hardware cost by compressing massive multiple-input multiple-output (MIMO) arrays with switching networks. However, this structure will lead to a degradation in the degrees of freedom (DOF) and accuracy of DOA estimation. To address these two issues, we first propose a switches-based sparse hybrid array (SW-SHA). In this method, we design a dynamic switching network to form a synthesized sparse array, i.e., SW-SHA, that can enlarg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.14297","kind":"arxiv","version":2},"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/2409.14297/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":"2026-07-05T09:59:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2+I3OuWVGdmvHAAa+mzrf6JK41ySkrIc4nBZLjZqK/pom2ULaOKsa1hWUXRPo7nE/2Z3RO76Jbm5iUE1U1NAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T00:43:50.751974Z"},"content_sha256":"41fed721fdfa2f55dc35f2836cca5eb32446cc39fef4856e56aabc55410c486d","schema_version":"1.0","event_id":"sha256:41fed721fdfa2f55dc35f2836cca5eb32446cc39fef4856e56aabc55410c486d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JNQG3ASZZNC354AVOM3F3B574H/bundle.json","state_url":"https://pith.science/pith/JNQG3ASZZNC354AVOM3F3B574H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JNQG3ASZZNC354AVOM3F3B574H/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":"2026-08-22T00:43:50Z","links":{"resolver":"https://pith.science/pith/JNQG3ASZZNC354AVOM3F3B574H","bundle":"https://pith.science/pith/JNQG3ASZZNC354AVOM3F3B574H/bundle.json","state":"https://pith.science/pith/JNQG3ASZZNC354AVOM3F3B574H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JNQG3ASZZNC354AVOM3F3B574H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:JNQG3ASZZNC354AVOM3F3B574H","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":"c98fb2e1d1366c2fabd426517e21f7bd8e75f25de1744201592e20346255afa6","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2024-09-22T02:15:05Z","title_canon_sha256":"8d6c95494d24d4e716f114ebcf057043ef32bb1cda9e33505bf99150f8ba38c7"},"schema_version":"1.0","source":{"id":"2409.14297","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.14297","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"arxiv_version","alias_value":"2409.14297v2","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.14297","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_12","alias_value":"JNQG3ASZZNC3","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_16","alias_value":"JNQG3ASZZNC354AV","created_at":"2026-07-05T09:59:52Z"},{"alias_kind":"pith_short_8","alias_value":"JNQG3ASZ","created_at":"2026-07-05T09:59:52Z"}],"graph_snapshots":[{"event_id":"sha256:41fed721fdfa2f55dc35f2836cca5eb32446cc39fef4856e56aabc55410c486d","target":"graph","created_at":"2026-07-05T09:59:52Z","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/2409.14297/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Switches-based hybrid architecture has attracted much attention, especially in directional-of-arrival (DOA) sensing, due to its ability of significantly reducing the hardware cost by compressing massive multiple-input multiple-output (MIMO) arrays with switching networks. However, this structure will lead to a degradation in the degrees of freedom (DOF) and accuracy of DOA estimation. To address these two issues, we first propose a switches-based sparse hybrid array (SW-SHA). In this method, we design a dynamic switching network to form a synthesized sparse array, i.e., SW-SHA, that can enlarg","authors_text":"Feng Shu, Jiangzhou Wang, Jun Zou, Kang Wei, Linqiong Jia, Yaoliang Song, Yifan Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2024-09-22T02:15:05Z","title":"DNN-based Enhanced DOA Sensing via Massive MIMO Receiver with Switches-based Hybrid Architecture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.14297","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":"sha256:1568a3e57dc371b1e1794a57a0ec9d1776b481e01552046bb3db40f49d2fc0b4","target":"record","created_at":"2026-07-05T09:59:52Z","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":"c98fb2e1d1366c2fabd426517e21f7bd8e75f25de1744201592e20346255afa6","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2024-09-22T02:15:05Z","title_canon_sha256":"8d6c95494d24d4e716f114ebcf057043ef32bb1cda9e33505bf99150f8ba38c7"},"schema_version":"1.0","source":{"id":"2409.14297","kind":"arxiv","version":2}},"canonical_sha256":"4b606d8259cb45bef01573365d87bfe1fe11c97801b9c4d0c07ab4c1e119039f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b606d8259cb45bef01573365d87bfe1fe11c97801b9c4d0c07ab4c1e119039f","first_computed_at":"2026-07-05T09:59:52.829738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:59:52.829738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gnGhTVlEwbgKYpbjDpN9BSBQZ7eUkt0+X4cPVjUAXJ0mIVhQthxqbjNppHaXhu6CHsguNHSKCDMWx76bczQ3CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:59:52.830088Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.14297","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1568a3e57dc371b1e1794a57a0ec9d1776b481e01552046bb3db40f49d2fc0b4","sha256:41fed721fdfa2f55dc35f2836cca5eb32446cc39fef4856e56aabc55410c486d"],"state_sha256":"eec51bc3b8a664e0da2da58cd7bd808f12778dabbcdfe526346f17ea6fa503c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qm0659emAyxFMA8ExtdO2+/p16rhNmwkZxZTIedEz2/4CuVtfmvHrWSwkXtzcOs12TiVj6GRwy/8Q2CzoqdUCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T00:43:50.756533Z","bundle_sha256":"ce4433ce035c0b803925ad7fa81631b668e9ba3e0bc234f9d95c26c8b632ddde"}}